2004 Tidal Graph Calendar

Transcription

Photo by Chris Dunn
Barataria-Terrebonne National Estuary Program
2004 Tidal Graph Calendar
adapted from and courtesy of
Madison R. “Shine” Powell
Alabama Marine Resources Division
There is not one drop of water in the ocean, not even in the
deepest parts of the abyss, that does not respond to the mysterious
forces that create the tide. No other force that affects the sea is so
strong. Compared with the tide, wind-created waves are surface
movements which are felt, at the most, no more than a hundred
fathoms below the surface. To help you comprehend the enormous masses of water affected by tidal movement, consider the
following example. Into one small bay on the east coast of
North America - Passamaquoddy - two billion tons of water
are carried by the tidal current twice each day; into the
whole Bay of Fundy, 100 billion tons!
Response to
“Pull”
of Moon
The tides are a response
of the waters of the ocean to
the gravitational “pull” of the
moon and the more distant sun. Folks who
live along the Louisiana coast know that the moon,
far more than the sun, controls the tides. Why is this?
Should not the sun, with a mass 27 million times that
of the moon, have the great influence? No. Because in
the mechanics of the universe, nearness counts far
more than distant mass, and when all the mathematical calculations have been made, we find that the
moon’s power over the tides is more than twice that
of the sun.
Moon Deciding Factor
Here’s how it works - twice each month, when the
moon is a mere thread of silver in the sky, and again
when it is full, we have the strongest tidal movements
- the highest flood tides and lowest ebb tides of the
lunar month. These are called the spring tides. At
these times the sun, moon, and earth are directly in
line and the pull of the two heavenly bodies is added
together to bring the water high on the beaches and
draw a brimming tide into the bays so that boats float
high beside their wharfs.
Likewise, twice each month at the quarters of the
moon, when sun, moon, and earth lie at the apexes of
a triangle and the pull of the sun and the moon are
opposed, we have the moderate tidal movements
called the neap tides. At this time the difference
between high and low water is less than at any other
time during the month. A simple way to explain or
remember tidal rhythm is to think of it as twice-daily
waves that move like the hour hand of a clock about
a central point - mid ocean. These waves run 12
hours and 25 minutes apart; their crests are high
tides and the troughs are low tides.
Tides More Complicated
However, the tides are enormously more complicated
than all of this would suggest. The influence of sun
and moon constantly changes with the phases of the
moon, with the distance of moon and sun from the
earth, and with position of each in relation to its
position north or south of the equator.
The declination of the moon (its position north or
south of the equator) is one of the most important
factors affecting Louisiana tides. As the moon
revolves around the earth from east to west, it also
has a north-south movement. The declination is the
distance in degrees of latitude that the moon is north
or south of the equator. The plane of the moon’s orbit
is not in the same plane as the equator; therefore, the
declination of the moon is constantly changing. In the
moon’s fortnightly change from maximum northerly
to maximum southerly declination, the difference
between morning and afternoon tides are greatest
near the times the moon is over the equator.
Power of Oscillation
Tides are further complicated by the
fact that every body of water, whether
natural or artificial, has its own period
of oscillation. If disturbed, its waters will
move with a seesaw or rocking motion with
the most pronounced movement at the ends of the
container and the least motion in the center. The
truth of the matter is that local topography is allimportant in determining the features that, to our
minds, make “the tide”. The attractive force of the
heavenly bodies sets the water in motion, but how,
and how far, and how strongly it will rise depends on
such things as the slope of the bottom, the depth of
the channel, or the width of the bay’s entrance.
When we spend a holiday or weekend at Venice,
Grand Isle, or Cocodrie, the ebbing and flowing of the
tide may not leave much of an impression on our
minds because in that great inland sea of the Atlantic
- the Gulf of Mexico - the tidal rise is but a slight
movement of no more than a foot or two.
On the shores of Louisiana the tide is long, deliberate
undulation - one rise and one fall in the lunar day of
24 hours plus 50 minutes - resembling the
untroubled breathing of that earth monster to whom
the ancient Indians attributed all tides. In contrast, if
you ever have the chance to summer on the Gulf of
Maine around the Bay of Fundy, the rise and fall of
the tide would be something you would never
forget. You would have to accommodate
your boating and swimming activities
to a tide that rises and falls 40 to
50 feet a day! Although all
earth lies under the same
moon and sun, the above
contrast shows us how
much the topography,
or shape of a basin in
a certain location,
affects the tide.
Tides Affect
People,
Fish
The lives
of coastal
Louisianians
are affected
daily by the
tides and of
even greater
importance is
the effect the
rise and fall of
the tides has on
the lives of fish
and shellfish we
call “seafood.” The
tidal flooding of the
coastal marshes - the
estuaries - is a vital factor
that accounts for the fertility
that enables us to enjoy the fishing
and fine seafood that we sometimes take
for granted.
Tides Growing Weaker
Let me leave you with the following fact: the tides are
growing weaker and weaker. Tidal friction is
constantly pushing the moon farther and farther
away. As the moon recedes, it will have less power
over the tides, and it will also take the moon longer to
complete its orbit around the earth. When finally the
length of the day and month coincide, the moon will
no longer rotate relatively to the earth and there will
be no lunar tides.
If the history of the earth’s tides should one day be
written by some observer of the universe, it would no
doubt be said that they reached their greatest
grandeur and power in the younger days of Earth,
and that they slowly grew feebler and less imposing
until one day they ceased to be. As with all that is
earthly, their days are numbered. All this, of course,
will require time on a scale the mind finds difficult
to conceive, and before it happens, it is quite
probable that the human race will have vanished
from the earth.
Louisiana Department of Wildlife & Fisheries
Photos by Glenn Thomas
BIG RIVER PROGRAM
Eighty-four
different
species of
fish were
collected in
just a few
weeks time in
just the
Mississippi
and
Atchafalaya
rivers!
Louisiana’s larger rivers (the Mississippi, Atchafalaya, Red, Black,
Sabine, Ouachita, Mermentau, and Calcasieu) support both
amazingly diverse fish populations and healthy recreational and
commercial fisheries.Unfortunately, there have been only very
limited efforts to document the nature and extent of these
resources, and almost no efforts to enhance their utilization.
LDWF Inland Fisheries biologists across the state have
begun to address some of these questions with an
extensive fish monitoring program.
the other native species (such as the minnows and darters).
Additionally, this work can define the routes used by
invasive species (like the grass, bighead, and silver carps), and
the distribution and status of unique, rare or endangered
species (such as paddlefish and sturgeon).
The LDWF biologists have been very impressed both with
the rivers’ scenic values and with the impressive populations
of fish. Eighty-four different species of fish were collected in just
a few weeks time in just the Mississippi and Atchafalaya rivers!
Catfish (blue, channel, and flathead) are extremely
abundant. Invariably, there have been very few people out
on these waters. If you are looking for a good fishing spot that
is away from the crowds, you may want to consider one of the
big rivers!
The information collected will be tremendously valuable for
determining the health of our river systems. Data is being
gathered on numbers and population structure of important
recreational and commercial species (such as bass, crappie,
catfish, buffalo, gar) and distribution and abundance of all
January 2004
Sunday
6
n
Monday
6
6
n
Tuesday
6
6
n
Wednesday
6
6
n
Thursday
6
6
ft
December
1
2 3 4 5 6
7 8 9 10 11 12 13
1 4 1 5 1 6 1 7 1 8 1 9 20
2 1 22 23 24 25 26 27
28 29 30 3 1
February
1
2
8
9
15 16
22 23
29
3 4 5
6
7
10 11 12 13 14
17 18 19 20 21
24 25 26 27 28
Tides:Barataria Pass
1.2
based on Pensacola, Florida (NOAA)
29 16 N 89 57 W
0.8
Monthly High & Low
-0.0
n
4(CST)
5(CST)
6
6
1 (CST)
n
Saturday
6
6
2(CST)
n
6
3(CST)
New Year’s Day
0.4
High January 20, 8:54p, 1.5 ft
Low January 20, 7:06a, -0.9 ft
-0.4
-0.8
4:59a
-0.1
ft
Friday
6(CST)
7(CST)
6:19p
0.8
8(CST)
5:13a
-0.3
6:44p
1.0
9(CST)
5:42a
-0.4
7:17p
1.0
10 (CST)
1.2
0.8
0.4
-0.0
-0.4
-0.8
6:17a
-0.5
ft
11
7:55p
1.1
6:55a
-0.5
8:35p
1.2
12 (CST)
(CST)
7:36a
-0.6
9:16p
1.2
13 (CST)
8:17a
-0.6
9:55p
1.2
14 (CST)
8:57a
-0.6
10:33p
1.2
15 (CST)
9:33a
-0.6
11:09p
1.1
16 (CST)
10:04a
-0.5
11:44p
1.0
17 (CST)
1.2
0.8
0.4
-0.0
-0.4
-0.8
10:28a
-0.4
ft
12:17a
0.8
18 (CST)
10:39a
-0.2
12:44a
0.6
19 (CST)
10:18a
0.0
9:24p
0.3
20(CST)
8:41a
0.1
5:16p
0.5
3:32a
0.0
21 (CST)
5:01p
0.7
3:41a
-0.3
22(CST)
5:27p
1.0
4:24a
-0.6
23(CST)
6:09p
1.2
24(CST)
Martin Luther
King Day
1.2
0.8
0.4
-0.0
-0.4
-0.8
5:14a
-0.8
ft
7:01p
1.4
25(CST)
6:09a
-0.9
7:57p
1.4
26(CST)
7:06a
-0.9
8:54p
1.5
27(CST)
8:02a
-0.9
9:49p
1.4
28(CST)
8:56a
-0.8
10:40p
1.3
29(CST)
9:43a
-0.6
11:28p
1.1
30(CST)
10:17a
-0.4
31(CST)
1.2
0.8
0.4
-0.0
-0.4
-0.8
12:10a
0.8
10:28a
-0.2
12:44a
0.6
9:50a
0.0
12:40a
0.3
7:54a
0.2
4:10p
0.4
Tidal data by Tides & Currents for Windows™ by Nobeltec Corporation. (503) 579-1414 • www.tides.com
3:37a
0.1
4:07p
0.6
3:18a
-0.1
4:32p
0.7
3:49a
-0.3
5:11p
0.9
4:27a
-0.4
5:56p
0.9
Photos by Jeff Rester, Gulf States Marine Fisheries Commission
An abandoned crab trap removal program
in Louisiana was authorized through Act
48 of the 2003 Regular Legislative
session. Proposed plans for several
abandoned crab trap removal projects are
pending and are expected to begin throughout 2004. One project has been
tentatively scheduled for the upper
Terrebonne Bay area for late winter 2004.
The program would prohibit the use of crab traps in a designated area for a
16 day period in a portion of the upper Terrebonne Estuary. All crab traps
remaining within the predetermined closed area would be considered abandoned
and could be collected and transported to designated disposal sites.
What is an abandoned crab trap?
The abandoned crab trap program would be similar to “beach sweeps”, that is,
it would be volunteer based. The program cannot succeed without assistance
in removing the abandoned traps from within the closed area. Trap removal
programs in Texas, Mississippi, and Alabama were successful because of
volunteer participation.
An abandoned trap is defined as any crab trap
that is not being actively fished, and these may
range from a partially crushed and encrusted
trap without a line or buoy to a relatively new
trap complete with line and buoy.
Please contact Vince Guillory (985) 594-4139, [email protected] if
you need additional information or would like to participate in the trap sweep.
FEBRUARY 2004
Sunday
6
ft
n
Monday
6
6
1 (CST)
n
Tuesday
6
6
2(CST)
n
Wednesday
6
6
3(CST)
n
Thursday
6
6
4(CST)
n
Friday
6
6
5(CST)
n
Saturday
6
6
6 (CST)
n
6
7(CST)
1.2
0.8
0.4
-0.0
-0.4
-0.8
ft
5:10a
-0.5
6:45p
1.0
8(CST)
5:55a
-0.5
7:34p
1.1
9(CST)
6:40a
-0.5
8:21p
1.1
10 (CST)
7:23a
-0.5
11
9:04p
1.1
8:02a
-0.5
12
(CST)
9:45p
1.1
8:36a
-0.5
10:24p
1.0
13 (CST)
(CST)
9:04a
-0.4
14
11:04p
0.9
(CST)
Valentine's
Day
1.2
0.8
0.4
-0.0
-0.4
-0.8
ft
9:22a
-0.2
15
11:48p
0.7
9:18a
0.0
12:42a
0.5
16 (CST)
(CST)
17
8:23a
0.2
2:58p
0.3
9:45p
0.2
3:37a 4:36a
0.2 0.2
2:35p
0.6
12:54a
-0.1
18 (CST)
(CST)
19
3:01p
0.8
2:03a
-0.4
3:47p
1.0
3:03a
-0.6
20(CST)
(CST)
4:43p
1.2
21 (CST)
1.2
0.8
0.4
-0.0
-0.4
-0.8
ft
4:02a
-0.7
5:46p
1.3
22(CST)
5:02a
-0.8
6:50p
1.4
23(CST)
6:01a
-0.8
7:53p
1.3
24(CST)
6:58a
-0.7
25(CST)
Fat Tuesday
1.2
8:53p
1.3
7:50a
-0.5
9:50p
1.1
26(CST)
8:35a
-0.4
10:44p
0.9
27(CST)
9:06a
-0.1
11:39p
0.7
28(CST)
Ash Wednesday
0.8
0.4
-0.0
-0.4
-0.8
ft
9:03a
0.1
12:46a
0.5
7:48a
0.3
1:02p
0.3
7:51p
0.2
11:03p
0.0
1:37p
0.7
12:40a
-0.1
2:18p
0.8
1:44a
-0.2
3:08p
0.9
2:41a
-0.3
29(CST)
1.2
0.8
29 16 N 89 57 W
0.4
-0.0
Monthly High & Low
High February 16, 6:50p, 1.4 ft
Low February 16, 5:02a,-0.8 ft
-0.4
-0.8
1:07p
0.5
3:36a
-0.3
January
1
2
3
4
5 6 7
8 9 10
11 12 13 14 15 16 17
18 19 20 21 22 23 24
25 26 27 28 29 30 31
5:07p
1.0
March
1
2
7 8 9
14 15 16
21 22 23
28 29 30
3 4 5
6
10 11 12 13
17 18 19 20
24 25 26 27
31
An abandoned trap is defined as any
crab trap that is not being actively fished
4:05p
1.0
Salt Water Kills Salt Water Plants
R
W O
NG
Nothing Could be Further
From the Truth
It’s a common misconception here in south Louisiana that salt water from the gulf kills salt water
vegetation and as a result, leads to coastal wetland loss. Nothing could be further from the truth.
In fact, salt water vegetation has adapted to live in the harsh environments of coastal Louisiana.
It’s not the salt water that kills the plants here in south Louisiana, it is the constant submergence
of the root zone that kills plants i.e. continued subsidence of the land kills plants.
We know that coastal Louisiana is sinking through a complex process called subsidence, where
marsh sediments compact and sink under their on weight. Historically, annual floods over the
banks of the Mississippi River provided the freshwater and sediment needed to keep these marshes
above water. Leveeing the river, which was necessary to protect our communities from the same
flooding events, has eliminated these vital inputs. As subsidence continues and the marsh surface
is continually flooded, the health of marsh plants is jeopardized. Once an area becomes waterlogged, the soil chemistry changes in ways that stress the plants, eventually killing them. If there is
enough sediment and drainage, waterlogging is avoided, and the harmful chemical changes in
the soil do not occur. But all too often this process is one way - and that is losing our marsh to
shallow open water environments.
Did you know that some species of marsh grasses are so tolerant of salt water that
they have been known to live in up to 60 parts per thousand of salinity? This concentration is much higher than that found in Louisiana’s coastal marshes and
higher than full strength seawater, which is typically 35 parts per thousand. The
most common salt water plant, smooth cordgrass, or oyster grass as it is sometimes
called, is very tolerant of high salinity concentrations. Other common species of
salt-water vegetation found in Louisiana are similar to smooth cordgrass in
their ability to tolerate high salinity concentrations including salt grass
and marsh-hay cordgrass.
While salt water has been known to kill freshwater plants like cypress
trees, bull tongue, wild celery, and others, these events are typically
associated with the construction of navigation channels that allow salt
water to travel into the interior coastal wetlands of Louisiana, as a
result of hurricane force winds driving salt water high into the estuary,
or because of land subsidence that allows salt water to penetrate farther
northward. Freshwater vegetation has little tolerance for salt water, and
huge areas of bald cypress/water tupelo swamp and freshwater marsh
habitats have been severely affected as a result.
Water Color by Diane Baker
March 2004
Sunday
6
n
Monday
6
6
ft
1.2
29 16 N 89 57 W
0.8
1
n
Tuesday
6
6
2
(CST)
n
Wednesday
6
6
3
(CST)
n
Thursday
6
6
n
Friday
6
6
4
(CST)
n
Saturday
6
6
5
(CST)
6
(CST)
n
6
(CST)
0.4
Monthly High & Low
High March 14, 4:13p, 1.4 ft
Low March 14, 2:34a, -0.6 ft
-0.0
-0.4
4:30a
-0.4
ft
7(CST)
6:08p
1.1
8(CST)
5:21a
-0.4
7:05p
1.1
9(CST)
6:07a
-0.4
7:57p
1.1
10 (CST)
6:48a
-0.3
11
8:46p
1.0
7:22a
-0.2
9:36p
1.0
12 (CST)
(CST)
7:49a
-0.1
10:32p
0.8
13 (CST)
1.2
0.8
0.4
-0.0
-0.4
7:57a
0.1
ft
11:46p
0.6
14 (CST)
7:18a
0.3
15
11:54a
0.4
6:06p
0.2
2:20a 4:47a
0.4 0.4
11:48a
0.6
8:53p
0.0
16 (CST)
(CST)
12:19p
0.9
10:47p
-0.2
17 (CST)
1:05p
1.1
12:12a
-0.4
18 (CST)
2:01p
1.2
1:25a
-0.5
19 (CST)
3:04p
1.3
20(CST)
1st Day of
Spring
St. Patrick's
Day
1.2
0.8
0.4
-0.0
-0.4
2:34a
-0.6
ft
4:13p
1.4
21 (CST)
3:39a
-0.6
5:25p
1.4
22(CST)
4:41a
-0.5
6:36p
1.3
23(CST)
5:37a
-0.4
7:45p
1.2
24(CST)
6:24a
-0.2
8:53p
1.0
25(CST)
7:00a
0.0
10:04p
0.8
26(CST)
7:08a
0.2
12:34p 2:10p
0.3 0.3
27(CST)
1.2
0.8
0.4
-0.0
-0.4
6:15a 10:43a
0.4
0.5
ft
5:47p
0.2
28(CST)
10:44a
0.7
7:49p
0.1
29(CST)
11:08a
0.8
9:17p
0.0
30(CST)
11:41a
1.0
10:28p
-0.1
12:21p
1.0
February
1
2
8
9
15 16
22 23
29
0.8
0.4
-0.0
-0.4
3:05p
1.1
2:41a
-0.2
4:10p
1.1
3:36a
-0.2
1:08p
1.1
12:37a
-0.2
31 (CST)
1.2
1:40a
-0.2
11:33p
-0.2
5:15p
1.1
4:24a
-0.2
6:18p
1.1
April
3 4 5 6
7
10 11 12 13 14
17 18 19 20 21
24 25 26 27 28
1
2
3
4 5 6
7 8
9 10
11 12 13 14 15 16 17
18 19 20 21 22 23 24
25 26 27 28 29 30
2:03p
1.1
11:32p
0.6
Image from LA DEQ, GIS Center
Photo by Mary Denny
FALSE RIVER IS LOCATED IN POINTE COUPEE PARISH
and was once a great loop of the Mississippi River. In 1699 Native Americans showed the French
explorers Iberville and Bienville a shallow passage through the swamp, saving more than 20 miles
around the meander. By 1722 floodwaters had eroded this narrow channel and the river switched
courses, creating the Pointe Coupee or “cut point”. Eventually, river sediment filled the upper and
lower ends of the abandoned channel, forming a horseshoe shaped lake, Faussee Riviere, the
southernmost oxbow on the Mississippi River.
False River is a half mile wide and ten miles long. When Europeans arrived the highest ground on
the natural levee was a forest of live oak, water oak, red gum, and pecan. Two to three miles from
the river and lower in elevation the backswamp included bald cypress, tupleo gum, and palmetto.
Today, the natural levees have been cleared of forest, first for plantations and now for
commercial development.
Photo by Mary Denny
Several plantations, such as Parlange (c. 1750) and Austerlitz (c. 1832), are reminders of a
lifestyle long past and sugar cane still dominates the local agriculture. At the north end of False
River is New Roads (1822) founded at the terminus of a “new road” connecting to the
Mississippi River.
Photo by Joshua Holder
Because of its size (2,912 acres) and location only 25 miles northwest of Baton Rouge, False
River is a very popular recreation destination. Water related activities such as boating, skiing,
and fishing are popular year around. Launches, such as Bonaventure’s Boat Landing on the south
shore, public facilities in New Roads, and small ramps, are scattered along “The Island” and outside
shoreline. It is said that a bass tournament can be found somewhere on the lake on any given
week. On summer weekends and three-day holidays such as Memorial Day and Labor Day, False
River hosts many recreational boats, jet skies, party barges, and bateaus. State highways parallel
the shoreline, LA 1 on the outside of the bend and LA 413 on the opposite bank, locally called “The
Island” side. Fishermen have always been attracted to the lake in search of largemouth bass,
bluegill, flathead, blue, and channel catfish, and sac-a-lait. As a result, camps crowd the shoreline,
in particular on “The Island”. Beginning in the 1970s, more and more people moved to the lake and
built permanent homes, electing to commute the 50 minutes to work in Baton Rouge or in the
plants along the River. Today, half-million dollar homes are not uncommon. - Rod Emmer
April 2004
Sunday
6
n
Monday
6
6
n
Tuesday
6
6
n
Wednesday
6
6
n
Thursday
6
6
ft
March
1
2
7 8
9
14 15 16
21 22 23
28 29 30
False River is .5 miles wide
and 10.25 miles long
ft
4(CDT)
DaylightSavings
Saving
Daylight
Time Begins
1.2
0.8
5(CDT)
May
3 4 5 6
10 11 12 13
17 18 19 20
24 25 26 27
31
6
6
2
(CST)
n
Saturday
6
6
3
(CST)
n
6
(CST)
1.2
1
2 3 4 5 6
7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30 31
6(CDT)
1
n
Friday
0.8
0.4
-0.0
-0.4
5:04a
-0.1
7(CDT)
7:22p
1.0
8(CDT)
5:35a
0.0
8:32p
0.9
9(CDT)
5:51a
0.2
10:05p
0.7
10 (CDT)
Good
Friday
0.4
Palm
Sunday
-0.0
-0.4
6:26a
0.4
ft
1.2
11
11:08a
0.5
5:31p
0.3
2:04a 4:11a
0.6 0.6
10:45a
0.7
7:37p
0.1
12 (CDT)
(CDT)
11:08a
1.0
9:09p
-0.1
13 (CDT)
11:47a
1.2
10:27p
-0.3
14 (CDT)
12:35p
1.4
11:41p
-0.4
15 (CDT)
1:30p
1.5
12:52a
-0.5
16 (CDT)
2:31p
1.5
17 (CDT)
Grand Isle Migratory Bird Celebration
Easter
Grand Isle
0.8
0.4
-0.0
-0.4
2:02a
-0.5
ft
1.2
0.8
3:36p
1.5
3:08a
-0.4
18 (CDT) Grand Isle
Migratory Bird
Celebration, Grand Isle
4:45p
1.4
4:07a
-0.3
19 (CDT)
5:56p
1.2
4:56a
-0.1
20(CDT)
7:10p
1.1
21 (CDT)
5:29a
0.1
8:33p
0.9
22(CDT)
5:35a
0.3
10:26p
0.7
23(CDT)
4:48a
0.5
10:39a
0.6
5:52p
0.3
24(CDT)
0.4
-0.0
-0.4
10:21a
0.8
ft
7:26p
0.2
25(CDT)
10:33a
1.0
8:29p
0.0
26(CDT)
10:56a
1.1
9:21p
-0.1
27(CDT)
11:25a
1.2
10:11p
-0.2
28(CDT)
12:01p
1.3
11:02p
-0.2
29(CDT)
12:42p
1.3
11:56p
-0.2
1:28p
1.3
30(CDT)
1.2
29 16 N 89 57 W
0.8
0.4
Monthly High & Low
High April 10, 2:31p, 1.5 ft
Low April 10, 12:52a, -0.5 ft
-0.0
-0.4
12:54a
-0.2
2:19p
1.3
1:50a
-0.2
3:12p
1.2
2:42a
-0.1
4:07p
1.2
3:26a
-0.1
5:04p
1.1
4:00a
0.0
6:09p
1.0
4:20a
0.2
7:44p
0.8
Photo by Dianne Lindstedt
"PUTS" ROBICHAUX'S
SHRIMP REMOULADE
4 T. horseradish mustard
1/4 c. tarragon vinegar
2 T. tomato catsup
1 T. paprika
1/2 tsp. capers, finely minced
1 tsp. salt
1 clove garlic, seived
1/2 c. celery, finely minced
1/2 c. green onions & tops, minced
1 c. salad oil
In a bowl, mix: oil, mustard, vinegar, salt, pepper,
paprika, tomato catsup and seived garlic. Beat
well. Add remining ingrediants. Mix well. Pour
over cold boiled shrimp. Marinate 4-5 hours.
COASTAL LOUISIANA’S
FAVORITE
dependent on wind and tidal driven currents
and tides as a means of transport into the
estuary. Once recruited into the marshes,
post-larval growth and development into
juvenile shrimp is rapid under a wide range
of salinities. As growth and development
progresses, juveniles next begin to move from
shallow marshes, bays, and bayous into the
lower bays where staging may occur. Staging
refers to that period of time shrimp spend in
the lower bays before migrating into offshore
waters. Because of barrier island land loss
brought about by coastal erosion, many coastal
bays largely remain open to the gulf, and
staging periods may be brief lasting just a few
days before migration into deeper offshore
waters begins. Migrations into offshore waters
are generally triggered by high tidal ranges
associated with lunar cycles or in response to
sudden changes in weather such as cold fronts,
heavy rainfall events, and storms. Once the
shrimp migrate offshore, growth continues as
they mature into adults, spawn, and complete
their life cycle.
he Barataria-Terrebonne Estuary supports one
of the largest shrimp fisheries in North
America. According to Louisiana Department of Wildlife and Fisheries landings
statistics, commercial shrimp landings within
the Barataria and Terrebonne basins totaled
about 42.6 million pounds (heads-on weight)
in 2002. In addition to the economic benefit
generated through dockside and value-added
product sales of shrimp harvested within the
estuary, the estuary provides many recreational
shrimpers and their families a source of shrimp
for stocking freezers for summer and early fall
backyard seafood boils.
The warm and nutrient-rich waters of the
Barataria-Terrebonne Estuar y ser ve as
critical habitat in the early development of
juvenile shrimp species. Following hatching in
offshore waters, early stage shrimp larvae
undergo a series of larval stages before entering the estuary as post-larvae. Lacking much
swimming ability, these post-larvae are largely
Graphic bt K. Varden
T
DR. MIKE ROBICHAUX
RACELAND, LOUISIANA
Barataria Bay
egg
va
larva
Shrimp Life Cycle
May 2004
Sunday
6
n
Monday
6
6
n
Tuesday
6
6
n
Wednesday
6
6
n
Thursday
6
6
n
Friday
6
6
n
Saturday
6
6
ft
June
April
1
4
5 6 7 8
11 12 13 14 15
18 19 20 21 22
25 26 27 28 29
ft
2(CDT)
3(CDT)
4(CDT)
2 3
9 10
16 17
23 24
30
6 7
13 14
20 21
27 28
5(CDT)
1
2
3 4 5
8 9 10 11 12
15 16 17 18 19
22 23 24 25 26
29 30
29 16 N 89 57 W
Monthly High & Low
High May 7, 12:19p, 1.7 ft
Low May 7, 11:36p,-0.6 ft
6(CDT)
1
n
6
(CDT)
1.6
1.2
0.8
0.4
-0.0
-0.4
4:10a
0.4
7(CDT)
10:58a
0.6
4:14p
0.5
10:56p
0.6
8(CDT)
1.6
1.2
0.8
0.4
-0.0
-0.4
2:40a
0.6
ft
1.6
1.2
0.8
0.4
-0.0
-0.4
9:40a
0.8
9(CDT)
9:35a
1.0
7:24p
-0.1
10 (CDT)
Mother's
Day
12:41a
-0.5
ft
6:12p
0.2
2:13p
1.6
11
1:41a
-0.4
16 (CDT)
17
9:59a
1.3
3:11p
1.5
8:27p
-0.3
9:29p
-0.5
12 (CDT)
(CDT)
2:32a
-0.2
4:08p
1.3
19
11:26a
1.7
10:32p
-0.6
13 (CDT)
3:08a
0.0
18 (CDT)
(CDT)
10:39a
1.5
5:02p
1.0
11:36p
-0.6
14 (CDT)
3:19a
0.2
6:02p
0.7
2:43a
0.4
20(CDT)
(CDT)
12:19p
1.7
1:15p
1.7
15
10:19a
0.7
(CDT)
5:43p 10:36p
0.5
0.5
21 (CDT)
9:23a
0.8
6:42p
0.2
22(CDT)
1.6
1.2
0.8
0.4
-0.0
-0.4
9:20a
1.0
ft
7:23p
0.0
23(CDT)
9:36a
1.2
8:01p
-0.1
24(CDT)
10:00a
1.3
8:39p
-0.2
25(CDT)
10:29a
1.4
9:19p
-0.2
26(CDT)
11:04a
1.4
10:01p
-0.3
27(CDT)
12:23p
1.4
11:36p
-0.2
29(CDT)
Grand Isle Speckled Trout Rodeo
Bridgeside Marina - 985-787-2419
1:05p
1.4
ft
10:48p
-0.2
28(CDT)
1.6
1.2
0.8
0.4
-0.0
-0.4
1.6
1.2
0.8
0.4
-0.0
-0.4
11:42a
1.4
12:23a
-0.2
30(CDT)
Grand Isle
Speckled Trout Rodeo
1:46p
1.4
1:05a
-0.2
2:27p
1.3
6:08p
0.1
3:05p
1.1
2:04a
0.1
3:38p
1.0
2:09a
0.2
3:13p
0.7
1:30a
0.4
31(CDT)
Memorial Day
Commercial shrimp landings within the Barataria and Terrebonne basins
totaled about 42.6 million pounds (heads-on weight) in 2002.
Montegut Lions
Club Annual Speckled Trout
Rodeo 985-594-2437
8:32a
0.9
1:40a
-0.1
8:32a
1.2
6:52p
-0.2
9:29a
0.7
5:50p
0.4
Photos by the LSU Aquaculture Research Station
Map created by the Louisiana Geological Survey
Crawfishing
Atchafalaya
Basin
in the Atchafalaya Basin
Gulf of Mexico
The crawfish is by a 1983 act the official state crustacean.
Acadian folklore traces the origin
of the Louisiana crawfish to Nova
Scotia and its closely related looka-like, the lobster. It is said that
when the Acadians were
uprooted during Le Grand
Dérangement, the lobsters
became so lonely they began an
exodus of their own, marching
south, searching the bays and
estuaries until the exhausted and
emaciated lobster finally found
the Acadians in south Louisiana
in the late 1760s. In fact, by
journey’s end the lobsters had
shrunk so much in size that the
Acadians did not at first
recognize their old friends.
Thirty crawfish species are found in Louisiana where they occupy a niche in the ecosystem as a detritivore, a voracious and
indiscriminate eater of decomposing vegetation and associated microbes. By converting organic matter into meat, the crawfish
in turn becomes a meal for fish, birds, and mammals such as raccoons and humans.
Nationally, over 100,000,000 pounds of crawfish are harvested annually. Louisiana swamps, marshes and artificial ponds
produce 80-90% of this amount. Normally, crawfish become extremely abundant in April and May and gradually decline in
quantity and quality into the summer months.
Commercial operators who fish the natural crop from the deeper waters use specially designed traps. The most common is
the “pillow” type that lies horizontally on the bottom and is completely submerged. Between one-quarter and one-half pound
of rough fish are placed in each trap as bait.
The number of traps the average fisherman tends in 24 hours ranges up to 200, although very aggressive operators are reported
to run many more. Most fishermen work from custom made flat-bottomed aluminum boats with a pointed bow. As the
traps are retrieved, the crawfish are dumped onto tables and sorted. Those kept are placed in a plastic mesh sacks to a
maximum weight of 35 pounds.
Recreational or sport crawfishing in the basin is significantly less than commercial operations. The most frequent shape for a
recreational net is square with an “A” wire frame tied to opposite corners and intertwined at the apex. Bait is tied in the center
and the net lower into shallow water. Poles with a hook or nail are used to lift the nets at regular intervals. - Rod Emmer
June 2004
Sunday
6
n
Monday
6
6
n
Tuesday
6
6
ft
n
Wednesday
6
1 (CDT)
6
n
Thursday
6
6
2(CDT)
n
Friday
6
6
3(CDT)
n
Saturday
6
6
4(CDT)
n
6
5(CDT)
1.6
29 16 N 89 57 W
1.2
0.8
0.4
Monthly High & Low
High June 4, 11:20a, 1.9 ft
Low June 3, 9:34p, -0.6 ft
-0.0
-0.4
-0.8
ft
6(CDT)
7(CDT)
8:59a
1.5
7:42p
-0.4
8(CDT)
9:40a
1.7
8:36p
-0.6
9(CDT)
10:28a
1.8
9:34p
-0.6
10 (CDT)
11:20a
1.9
11
10:34p
-0.6
12:15p
1.8
11:33p
-0.6
12 (CDT)
(CDT)
1.6
1.2
0.8
0.4
-0.0
-0.4
-0.8
ft
1:08p
1.7
12:27a
-0.4
13 (CDT)
1:58p
1.5
1:10a
-0.2
14 (CDT)
2:42p
1.3
1:34a
0.0
15 (CDT)
3:11p
1.0
1:22a
0.3
16 (CDT)
1:37p
0.7
12:07a
0.4
17 (CDT)
8:47a
0.8
7:30p
0.4
18 (CDT)
8:10a
1.0
19 (CDT)
6:31p
0.2
985-872-0637
Houma KC Council #1317 45th Annual Fishing
Rodeo
1.6
1.2
0.8
0.4
-0.0
-0.4
-0.8
ft
1.6
8:15a
1.2
6:51p
0.0
20(CDT)
8:36a
1.3
7:22p
-0.1
21 (CDT) First Day
Father's Day
9:05a
1.4
7:56p
-0.2
22(CDT)
9:39a
1.5
8:34p
-0.2
23(CDT)
10:16a
1.5
9:15p
-0.3
24(CDT)
10:55a
1.5
9:57p
-0.2
25(CDT)
11:33a
1.5
10:38p
-0.2
26(CDT)
19th Annual Creole Classic Fishing Rodeo
of Summer
1.2
0.8
0.4
-0.0
-0.4
-0.8
ft
1.6
1.2
0.8
2nd Annual Cut Off Youth
Center Fishing Rodeo
985-632-7616
Houma KC Council
#1317 45th
Annual Fishing Rodeo
12:11p
1.5
11:17p
-0.2
27(CDT)
2nd Annual Cut Off
Youth Center Fishing
Rodeo
12:46p
1.4
11:50p
-0.1
28(CDT)
1:19p
1.3
12:16a
0.0
29(CDT)
1:49p
1.2
12:30a
0.1
-0.4
5:29p
0.1
7:22a
1.3
6:03p
-0.2
12:16p
0.8
11:15p
0.5
7:56a
0.8
July
May
0.4
7:13a
1.0
12:21a
0.3
30(CDT)
-0.0
-0.8
2:07p
1.0
7:55a
1.6
6:50p
-0.4
8:40a
1.8
7:43p
-0.5
2
9
16
23
30
3 4 5 6
7
10 11 12 13 14
17 18 19 20 21
24 25 26 27 28
31
1
8
15
22
29
1
4
5 6 7 8
11 12 13 14 15
18 19 20 21 22
25 26 27 28 29
2
9
16
23
30
3
10
17
24
31
6:01p
0.4
Blessing of the Fleet
Photos from the Cheniere Centennial
Since before recorded history,
people have asked for divine
intervention for loved ones facing
dangers and uncertainties on the
open seas, for a bountiful catch,
and for the security of the those they
leave. Returning with a successful
harvest affects more than just the
fisherman and his family.
Supporting the fisherman are the
net maker, marine supplier, and
shrimp / fish processing plant and
workers and the economic stability
of the community as a whole.
The French from the old world and
the Acadians from Nova Scotia
brought their customs with them
when they settled in coastal
Louisiana. Today, this ritual is
manifest in the “blessing of the fleet”
before the fisherman and shrimpers
begin another perilous season.
Photos from the D.W. Davis Collection
-Rod Emmer
July 2004
Sunday
6
n
Monday
6
6
n
Tuesday
6
6
n
Wednesday
6
6
n
Thursday
6
6
ft
August
1
2
8 9
15 16
22 23
29 30
June
1
2
6 7 8
9
13 14 15 16
20 21 22 23
27 28 29 30
3
4 5
10 11 12
17 18 19
24 25 26
n
3 4
5 6 7
10 11 12 13 14
17 18 19 20 21
24 25 26 27 28
31
6
4(CDT)
5(CDT)
n
Saturday
6
6
2(CDT)
n
6
3(CDT)
Golden Meadow /
1.6
Fourchon Tarpon
Rodeo
985-693-4446
1.2
0.8
0.4
Monthly High & Low
High July 30, 9:30a, 2.0 ft
Low July 1, 8:40p, -0.6 ft
-0.0
-0.4
9:32a
1.9
ft
6
1 (CDT)
29 16 N 89 57 W
Friday
6(CDT)
7(CDT)
8:40p
-0.6
8(CDT)
10:27a
1.9
9:38p
-0.6
9(CDT)
11:21a
1.9
10:34p
-0.5
10 (CDT)
1.6
1.2
0.8
0.4
Independence
Day
-0.0
-0.4
12:13p
1.8
ft
11
11:24p
-0.3
1:02p
1.6
12:02a
-0.1
12 (CDT)
(CDT)
1:43p
1.3
12:17a
0.2
13 (CDT)
2:11p
1.0
11:47p
0.4
14 (CDT)
12:47p
0.8
10:02p
0.5
15 (CDT)
6:53a
0.9
6:06p
0.4
6:34a
1.1
16 (CDT)
5:29p
0.2
17 (CDT)
1.6
1.2
0.8
0.4
-0.0
-0.4
6:52a
1.2
ft
5:52p
0.1
7:23a
1.4
18 (CDT)
6:26p
0.0
19 (CDT)
8:01a
1.5
7:04p
-0.1
20(CDT)
8:42a
1.5
7:45p
-0.1
21 (CDT)
9:26a
1.6
8:28p
-0.1
22(CDT)
9:10p
-0.1
23(CDT)
82nd
1.6
10:08a
1.6
Grand
Isle
10:48a
1.6
9:48p
-0.1
24(CDT)
International
Tarpon
Rodeo
Sanddollar Marina - 985-787-2500
1.2
0.8
0.4
-0.0
-0.4
11:24a
1.6
ft
10:21p
-0.1
25(CDT)
11:58a
1.5
10:47p
0.0
26(CDT)
12:31p
1.4
11:06p
0.1
27(CDT)
1:02p
1.2
11:10p
0.3
28(CDT)
1:29p
1.0
10:43p
0.5
29(CDT)
9:15a
0.8
9:04p
0.6
30(CDT)
5:36a
0.9
3:56p
0.5
31 (CDT)
1.6
1.2
0.8
0.4
-0.0
-0.4
5:27a
1.2
4:11p
0.2
5:54a
1.4
4:55p
-0.1
6:39a
1.6
5:47p
-0.3
7:33a
1.8
6:43p
-0.4
8:31a
1.9
7:41p
-0.4
9:30a
2.0
8:39p
-0.4
10:28a
1.9
9:34p
-0.2
Photos by the NRCS
Photos by T. Baker Smith & Son
Restoration Report
The region we call home is disappearing into the Gulf of
Mexico. The enormous expanse of coastal marsh in the
Barataria-Terrebonne Estuary System–which provides
critical habitat for fish and wildlife and protects us from
storm surges and hurricanes–is rapidly deteriorating.
Massive conversion of wetlands to open water and the
erosion of our barrier islands, is something most fishermen, oystermen, duck hunters, and trappers have seen
over the years. Scientists are able to analyze historical
photographs and satellite images of the BaratariaTerrebonne Estuary System to determine changes caused
by land loss over the last fifty years. This analysis tells us
that the Barataria-Terrebonne basins alone lost more than
700 square miles of wetland and associated upland ridges
between 1950 and 2000. These coastal marsh habitats
are critical to the health of fish and wildlife populations,
and provide a considerable buffer from flooding, storms,
and hurricanes that periodically threaten homes, businesses, and oil and gas production infrastructure.
Estuar y System. Most of these projects focus
on habitats with high rates of loss, such as the
barrier islands, interior marshes, bays, and bayou shorelines in Plaquemines, Jefferson, Lafourche, and
Terrebonne Parishes.
Several state and federal programs are countering
habitat loss by investing in large-scale habitat restoration activities. In the past 15 years, nearly 50,000 acres
have benefited from local, state, and federal habitat
restoration programs within the Barataria-Terrebonne
CUMULATIVE ACRES OF HABITAT
BENEFITED BY STATE AND FEDERAL RESTORATION
PROJECTS SINCE 1986
Natural resource managers in Louisiana have gone to great lengths to
make information on habitat restoration available to the public. The
Louisiana Department of Natural Resources (LDNR) has a database
of approved federal, state and non-federal restoration projects available on the Internet, along with associated scientific monitoring data.
Anyone interested in discovering more about the restoration projects
occurring in their parish can visit www.savelawetlands.org/site/
alphabet.html. An interactive map at this site will allow you to view
details about restoration projects in your community.
Source: LDNR Coastal Restoration Division
August 2004
Sunday
6
ft
n
Monday
6
6
1 (CDT)
n
Tuesday
6
6
2(CDT)
n
Wednesday
6
6
3(CDT)
n
Thursday
6
6
4(CDT)
n
Friday
6
6
5(CDT)
n
Saturday
6
6
6(CDT)
n
6
7(CDT)
Terrebonne Sportsman League 49th Annual
International Fishing Rodeo 985-804-7504
1.6
1.2
0.8
0.4
-0.0
11:23a
1.8
ft
10:23p
-0.1
8(CDT)
Terrebonne
Sportsman
League 49th Annual
International
Fishing Rodeo
1.6
1.2
0.8
12:14p
1.6
10:59p
0.2
9(CDT)
1:03p
1.3
11:07p
0.4
10 (CDT)
1:50p
1.0
11
10:13p
0.6
4:56a 9:07a
0.8
0.7
12
(CDT)
2:43p
0.8
7:38p
0.7
4:02a
1.0
13
(CDT)
2:45p
0.5
4:21a
1.2
14
(CDT)
Bridgeside
Marina 985-787-2419
-0.0
ft
15
4:18p
0.2
5:43a
1.4
5:04p
0.1
6:34a
1.5
16 (CDT)
(CDT)
(CDT)
IGA Redfish Tour
0.4
4:57a
1.3
3:34p
0.3
5:52p
0.1
7:28a
1.6
17 (CDT)
6:41p
0.1
8:21a
1.6
18 (CDT)
7:29p
0.1
9:11a
1.6
19 (CDT)
8:12p
0.1
20(CDT)
9:55a
1.6
8:50p
0.1
21 (CDT)
1.6
1.2
0.8
0.4
-0.0
10:36a
1.6
ft
9:21p
0.2
22(CDT)
11:14a
1.5
9:44p
0.3
23(CDT)
11:54a
1.4
9:54p
0.4
24(CDT)
12:39p
1.2
9:41p
0.6
25(CDT)
1:41p
1.0
8:37p
0.8
26(CDT)
2:54a
0.9
10:12a
0.7
2:50a
1.1
27(CDT)
1:00p
0.5
28(CDT)
1.6
1.2
0.8
0.4
-0.0
3:20a
1.4
ft
2:20p
0.2
4:07a
1.6
29(CDT)
3:24p
0.0
5:05a
1.8
30(CDT)
4:27p
-0.1
6:10a
1.9
5:29p
-0.2
29 16 N 89 57 W
1.2
0.8
Monthly High & Low
High August 26, 7:17a, 1.9 ft
Low August 25, 5:29p, -0.2 ft
0.4
-0.0
9:10p
0.3
6:31p
-0.2
8:24a
1.9
7:29p
-0.1
9:28a
1.8
31 (CDT)
1.6
10:30a
1.7
7:17a
1.9
11:32a
1.5
9:42p
0.5
12:39p
1.3
9:28p
0.7
September
July
1
4 5 6 7 8
11 12 13 14 15
18 19 20 21 22
25 26 27 28 29
2
9
16
23
30
3
10
17
24
31
5 6
12 13
19 20
26 27
1
2
7
8 9
14 15 16
21 22 23
28 29 30
3 4
10 11
17 18
24 25
8:23p
0.1
Map prepared by the Louisiana Geological Survey
The French explorers, Iberville and Bienville considered Bayou
Lafourche as the west fork of the Mississippi River - hence, the term
“Lafourche” - the fork. In the mid-1800’s Bayou Lafourche
carried roughly 12 percent, over 40,000 cubic feet per second (cfs)
of Mississippi River flow. However, a major hydrologic modification occurred with the closing of Bayou Lafourche as a Mississippi
River distributary in 1904. In 1955, a control structure was built
on the river at Donaldsonville to allow water to enter Bayou
Lafourche. Currently, about one quarter of one percent, or 200 cfs,
of the Mississippi River flow is allowed down the Bayou. This
diversion is shut off if heavy rains have caused high water in the
Bayou, or if monitoring stations on the Mississippi River indicate a
chemical spill has occurred upriver.
The closing of Bayou Lafourche prevented freshwater from
reaching the marshes in the southern Barataria and Terrebonne
basins. Now, the Barataria and Terrebonne basins are experiencing
the most severe coastal land loss rates in the state. Problems with
drinking water supplies such as saltwater intrusion are also
increasing. Reactivating Bayou Lafourche as a distributary of the
Mississippi River could be a readily available means for increasing
freshwater supplies for consumption and for coastal restoration by
reintroducing freshwater into areas that were historically connected
to freshwater flows of the river.
The project currently underway to evaluate the
Re-Introduction of the Mississippi River into Bayou Lafourche
features several key components: a pump/siphon station, a sand
trap, an inflatable weir, dredging, and five new real time monitoring stations that will be used to maintain a consistent water level in
the bayou throughout the year. This project is currently in its
engineering and design phase.
For more information on this project, its history, its
current status, and a listing of project outreach events, please visit
our project website, www.bayoulafourche.org. This website is a
joint effort of the Louisiana Department of Natural
Resources, Coastal Restoration Division, and the BaratariaTerrebonne National Estuary Program.
September 2004
Sunday
6
n
Monday
6
6
n
Tuesday
6
6
n
Wednesday
6
6
ft
August
1
2
8
9
15 16
22 23
29 30
1.6
Thursday
6
6
1 (CDT)
n
Friday
6
6
2(CDT)
5(CDT)
45th Grand Isle Original
Redfish Rodeo
6(CDT)
1.2
6
n
6
4(CDT)
1.2
0.8
0.4
-0.0
7(CDT)
Labor
Day
Saturday
6
45th Grand Isle Original Redfish Rodeo
1.6
1
2
3 4 5 6
7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
31
3 4
5 6
7
10 11 12 13 14
17 18 19 20 21
24 25 26 27 28
31
n
3(CDT)
October
1:35a 5:40a
0.8
0.7
ft
n
2:15p
1.0
7:37p
0.9
8(CDT)
12:59a
1.0
9:12a
0.7
1:24a
1.2
9(CDT)
11:34a
0.5
2:02a
1.4
10 (CDT)
11
1:04p
04
St. AnneBourg KC Fishing Rodeo
(CDT)
0.8
0.4
985-594-1882
-0.0
2:46a
1.5
ft
1.6
2:12p
0.3
3:38a
1.5
12 (CDT)
St. AnneBourg KC Fishing Rodeo
3:13p
0.3
4:38a
1.6
13 (CDT)
4:13p
0.2
5:43a
1.6
14 (CDT)
5:11p
0.2
6:48a
1.6
15 (CDT)
6:04p
0.2
7:48a
1.6
16 (CDT)
17 (CDT)
12:10a
1.0
12:15a
1.2
6:50p
0.3
8:43a
1.6
7:29p
0.3
18 (CDT)
Golden Meadow
Firefighters Family
Fishing Rodeo
1.2
0.8
0.4
985-475-5610
-0.0
9:33a
1.5
ft
1.6
1.2
7:58p
0.4
19 (CDT) Golden Meadow
10:24a
1.4
8:15p
0.6
20(CDT)
11:23a
1.3
8:08p
0.7
21 (CDT)
1:25a 4:04a
0.8 0.8
22(CDT)
Firefighters Family
Fishing Rodeo
12:47p
1.1
7:12p
0.9
7:23a
0.7
23(CDT)
First Day
of Fall
9:32a
0.5
24(CDT)
12:45a
1.4
11:10a
0.3
25(CDT)
Bayou Dularge
KC Fishing Rodeo
Le Fete
d'Ecologie
985-868-7699
Thibodaux
0.8
0.4
Bayou Blue
-0.0
1:29a
1.6
ft
1.6
12:31p
0.2
2:23a
1.8
26(CDT) Bayou Dularge
1:45p
0.0
3:25a
1.9
27(CDT)
2:55p
0.0
28(CDT)
4:33a
1.9
4:02p
-0.1
5:45a
1.9
29(CDT)
5:05p
0.0
6:59a
1.8
KC Fishing Rodeo
6:02p
0.1
30(CDT)
KC Fishing Rodeo
29 16 N 89 57 W
1.2
0.8
0.4
-0.0
Bayou Blue KC Fishing
Rodeo 985-876-3622
9:27a
1.5
7:23p
0.5
Monthly High & Low
High September 22, 4:33a, 1.9 ft
Low September 22, 4:02p, -0.1 ft
10:50a
1.3
7:20p 11:58p
0.8 0.8
4:29a
0.7
12:48p
1.1
6:00p 11:05p
0.9 1.0
7:10a
0.6
11:17p
1.2
8:51a
0.5
11:45p
1.4
8:12a
1.6
6:49p
0.3
Photos by Louisiana Sea Grant
Exotic
Invasive Species
The term exotic invasive species has many aliases including aquatic
nuisance species, invasive species, and alien species. All of these
words refer to nonindigenous or nonnative species that eat, destroy,
and crowd out native species, reducing natural diversity while
creating economic and sociological problems for people. Some
familiar invasive species in Louisiana are nutria, salvinia, water
hyacinth, zebra mussel, hydrilla, and Chinese tallow.
Hydrilla
Water Hyacinth
Zebra Mussel
Although most nonindigenous species, like the camellia, are not
invasive, their characteristics are often unknown at the time of
introduction. Exotic invasive species have superior ability to gain
nutrition, adapt to hostile or uncomfortable environments, and
reproduce. Introducing a nonindigenous species into Louisiana is a
gamble on whether it has invasive characteristics.
Salvinia
Once an invasive species begins to reproduce, it is almost
impossible to eradicate, but everyone can prevent introductions.
Those in the plant and aquarium, aquaculture, and baitfish
production trades can contain nonindigenous species and dispose
of them carefully, teaching their customers, hobbyists, and
collectors proper disposal methods. Sportsmen can clean off boats
and trailers at the ramp after use to avoid transporting a plant
segment or animal larvae to another waterbody. Those involved in
transportation and commerce can incorporate inspection and
disposal control methods into operations to avoid importing
nonindigenous species accidentally.
Salvinia
More information on the nonindigenous species in Louisiana and
ways to prevent their introduction is available from the Barataria
Terrebonne National Estuary Program.
Nutria
www.btnep.org
Chinese Tallow
October 2004
Sunday
6
n
Monday
6
6
n
Tuesday
6
6
n
Wednesday
6
6
n
Thursday
6
6
n
Friday
6
6
ft
29 16 N 89 57 W
n
Saturday
6
6
1 (CDT)
n
6
2(CDT)
1.6
1.2
0.8
Monthly High & Low
High October 19, 1:58a, 1.9 ft
Low October 19, 1:26p, -0.2 ft
0.4
-0.0
10:07a
0.3
ft
3(CDT)
4(CDT)
5(CDT)
6(CDT)
7(CDT)
12:20a
1.5
8(CDT)
11:12a
0.3
9(CDT)
1.6
1.2
0.8
0.4
-0.0
1:00a
1.6
ft
12:13p
0.2
1:47a
1.6
10 (CDT)
11
1:15p
0.2
2:40a
1.6
2:18p
0.2
3:40a
1.6
12 (CDT)
(CDT)
3:19p
0.2
4:44a
1.5
13 (CDT)
4:14p
0.3
5:48a
1.5
14 (CDT)
4:59p
0.3
6:52a
1.4
15 (CDT)
5:34p
0.4
16 (CDT)
1.6
1.2
0.8
0.4
-0.0
7:57a
1.3
ft
5:55p
0.5
9:12a
1.2
17 (CDT)
5:54p
0.7
3:02a
0.8
18 (CDT)
11:01a
1.0
5:07p 10:38p
0.8
0.9
19 (CDT)
6:00a
0.6
10:27p
1.2
20(CDT)
7:38a
0.4
10:47p
1.4
21 (CDT)
8:53a
0.2
11:22p
1.6
22(CDT)
10:02a
0.0
23(CDT)
1.6
1.2
0.8
0.4
-0.0
12:07a
1.8
ft
11:10a
-0.1
1:00a
1.9
24(CDT)
12:18p
-0.2
1:58a
1.9
25(CDT)
1:26p
-0.2
3:00a
1.9
26(CDT)
2:32p
-0.1
4:06a
1.7
27(CDT)
3:30p
0.0
5:14a
1.6
28(CDT)
4:18p
0.1
6:26a
1.4
29(CDT)
4:49p
0.4
30(CDT)
1.6
1.2
0.8
0.4
-0.0
7:53a
1.1
ft
1.6
1.2
0.8
4:48p
0.6
11:56p
0.8
31 (CST)
Halloween
Daylight Saving
Time Ends
0.4
-0.0
9:51a
0.0
3:16a
0.7
10:12a
0.9
3:42p
0.8
10:09p
0.9
September
5 6
7
12 13 14
19 20 21
26 27 28
1
2 3 4
8
9 10 11
15 16 17 18
22 23 24 25
29 30
6:10a
0.5
9:58p
1.1
7:29a
0.3
November
1
2 3 4
5 6
7 8
9 10 11 12 13
14 15 16 17 18 1 9 20
21 22 23 24 25 26 27
28 29 30
11:28p
1.6
10:14p
1.3
8:25a
0.2
10:39p
1.5
9:14a
0.0
11:11p
1.5
10:01a
0.0
Nonindigenous or nonnative species
eat, destroy, and crowd out native species, reducing
natural diversity while creating economic and
sociological problems for people.
11:47p
1.6
Photos by Brian Saucier
Recreational Size and Limits
Speckled Trout 12" Min. (TL) • 25 Daily
Redfish 16" Min. (TL); 1 Over 27" • 5 Daily
Black Drum 16" Min. (TL); 1 Over 27" • 5 Daily
Southern Flounder No Size Limit • 10 Daily
Species
Salt Water
Amberjack State and Fed. Reg. - 28" Min (FL) • 1 Daily
Cobia (Ling or Lemon) State and Fed. Reg. - 33" Min (FL) • 2 Daily
King Mackerel State and Fed. Reg. - 24" Min (FL) • 2 Daily
Photo by Russell Talbot
Spanish Mackerel State and Fed. Reg. - 12" Min (FL) • 15 Daily
Red Snapper State and Fed. Reg. - 16" Min (TL) • 4 Daily
Black Bass (Largemouth) No Size Limit • 10 Daily
Black Bass (Largemouth) Atchafalaya Basin,
Lake Verret-Palourde Area 14" Minimum (TL) • 10 Daily
Crappie (Sac-a-lait) No Limit • 50 Daily
Striped or Hybrid Striped Bass No Limit; 2 over 30" (TL) • 5 Daily
Species
Fresh Water
White Bass No Limit • 50 Daily
Channel Catfish 25 less than 11" (TL) • 100 Total
Total Length
First
Dorsal Fin
Blue Catfish 25 less than 12" (TL) • 100 Total
Second
Dorsal Fin
Pelvic Fin
Anal Pore
Trunk
Head
Flathead (Spotted, Yellow, Opelousas) Catfish
25 less than 14" TL • 100 Total
Photo by Richard DeMay
Yellow Bass No Limit • 50 Daily
Tail
Freshwater Drum (Gaspergou) 25 less than 12" (TL) • No Limit Over 12"
Fork Length (FL); Tip of snout to fork of tail
Total Length (TL): Tip of snout to tip of tail
November 2004
Sunday
6
n
Monday
6
6
ft
29 16 N 89 57 W
n
Tuesday
6
6
1 (CST)
n
Wednesday
6
6
2(CST)
n
Thursday
6
6
3(CST)
n
Friday
6
6
4(CST)
n
Saturday
6
6
5(CST)
n
6
6(CST)
1.6
1.2
0.8
Monthly High & Low
High November 14, 10:55p, 1.8 ft
Low November 15, 10:09a, -0.5 ft
0.4
-0.0
-0.4
10:43a
0.0
ft
7(CST)
12:13a
1.5
8(CST)
11:39a
0.0
1:02a
1.5
9(CST)
10
12:33p
0.0
1:51a
1.4
11
(CST)
1:21p
0.1
2:40a
1.3
Veterans
Day
1.2
3:28a
1.2
12 (CST)
(CST)
1.6
1:59p
0.1
2:25p
0.3
13 (CST)
Back to the Bayou Paddling
Donaldsonville
to
Trip
Lockport, LA
0.8
0.4
-0.0
-0.4
4:20a
1.0
ft
1.6
2:32p
0.4
5:42a
0.8
14 (CST)
15
Back to the
9:18p
0.8
4:14a
0.6
8:22p
0.9
16 (CST)
(CST)
5:25a
0.3
8:19p
1.2
17 (CST)
6:18a
0.1
8:42p
1.4
18 (CST)
7:12a
-0.2
9:18p
1.6
19 (CST)
8:08a
-0.4
10:04p
1.8
20(CST)
Bayou Paddling Trip
Donaldsonville
1.2
2:04p
0.5
to
Lockport, LA
0.8
0.4
-0.0
-0.4
9:07a
-0.5
ft
10:55p
1.8
21 (CST)
10:09a
-0.5
11:49p
1.8
22(CST)
11:12a
-0.5
12:45a
1.7
23(CST)
12:10p
-0.4
1:41a
1.6
24(CST)
1:01p
-0.2
2:34a
1.3
25(CST)
1.2
3:22a
1.1
26(CST)
Thanksgiving
Day
1.6
1:36p
0.0
1:43p
0.2
27(CST)
0.8
0.4
-0.0
-0.4
3:53a
0.8
ft
12:58p
0.4
8:48p
0.7
28(CST)
5:24a
0.5
7:57p
0.9
29(CST)
5:40a
0.2
7:59p
1.1
6:15a
0.0
8:18p
1.2
October
1.2
0.8
0.4
-0.0
-0.4
10:32p
1.4
8:45p
1.4
7:30a
-0.3
30(CST)
1.6
8:53a
-0.3
6:52a
-0.2
9:39a
-0.3
11:13p
1.4
10:26a
-0.3
11:53p
1.3
3 4 5 6
7
10 11 12 13 14
17 18 19 20 21
24 25 26 27 28
31
December
1
2
8 9
15 16
22 23
29 30
1
2
5 6
7 8 9
12 13 14 15 16
19 20 21 22 23
26 27 28 29 30
3 4
10 11
17 18
24 25
31
9:17p
1.4
8:10a
-0.3
9:53p
1.4
2-4 weeks
6 weeks
2 months
3 months
1-5 months
3-14 months
6 months
1 year
1-3 years
13 years
50 years
80 years
200 years
400 years
450 years
600 years
could be
forever
December 2004
Sunday
6
n
Monday
6
6
n
Tuesday
6
6
n
Wednesday
6
6
ft
November
1
2
3 4 5 6
7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30
January 2005
n
Thursday
6
6
1 (CST)
n
Friday
6
2(CST)
6
n
Saturday
6
6
3(CST)
n
6
4(CST)
1.6
1
2 3 4 5 6
7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
1.2
0.8
0.4
-0.0
-0.4
-0.8
11:10a
-0.3
ft
5(CST)
6(CST)
7(CST)
12:32a
1.3
8(CST)
11:48a
-0.2
1:07a
1.2
9(CST)
12:17p
-0.1
1:37a
1.0
10 (CST)
11
12:33p
0.0
(CST)
1.6
1.2
0.8
0.4
-0.0
-0.4
-0.8
1:54a
0.8
ft
12:26p
0.1
11:38p
0.6
12 (CST)
11:31a
0.3
8:01p
0.6
13 (CST)
5:38a
0.3
7:13p
0.8
14 (CST)
5:08a
0.0
7:14p
1.1
5:41a
-0.3
15 (CST)
7:40p
1.3
16 (CST)
6:25a
-0.5
8:20p
1.5
17 (CST)
7:17a
-0.7
9:07p
1.6
18 (CST)
1.6
1.2
0.8
0.4
-0.0
-0.4
-0.8
8:13a
-0.8
ft
9:59p
1.7
19 (CST)
9:11a
-0.8
10:53p
1.7
20(CST)
10:09a
-0.8
11:46p
1.6
21 (CST)
11:03a
-0.6
12:36a
1.4
22(CST)
11:46a
-0.4
1:20a
1.1
23(CST)
12:09p
-0.2
1:51a
0.8
24(CST)
25(CST)
First Day of Winter
1.6
11:53a
0.0
Christmas
Day
1.2
0.8
0.4
-0.0
-0.4
-0.8
12:23a
0.5
10:29a
0.2
7:08p
0.6
26(CST)
5:59a
0.1
6:39p
0.8
27(CST)
5:12a
-0.1
6:50p
1.0
28(CST)
5:36a
-0.3
7:16p
1.1
6:08a
-0.4
29(CST)
7:49p
1.2
30(CST)
6:45a
-0.5
8:26p
1.2
7:25a
-0.5
9:06p
1.2
31 (CST)
New Year's Eve
1.6
1.2
29 16 N 89 57 W
0.8
0.4
Monthly High & Low
High December 12, 9:59p, 1.7 ft
Low December 13, 9:11a, -0.8 ft
-0.0
-0.4
-0.8
8:07a
-0.5
9:46p
1.2
8:50a
-0.5
10:25p
1.2
9:31a
-0.5
11:02p
1.2
10:07a
-0.5
11:35p
1.1
10:36a
-0.4
12:06a
1.0
10:57a
-0.3
100 Years of Land Change
for Coastal Louisiana
Map prepared by
U.S. Geological Survey
National Wetlands Research Center
As all who are familiar with coastal Louisiana know, we are
on the losing end in our efforts to combat coastal wetland
loss. This is evident to any fishermen - both recreational
and commercial, hunters, bird watchers, beach combers,
and especially those folks who live close to the coast. And it
is easily made evident to anyone who views and
understands this map.
area experienced 61 percent of the state’s loss and from
1990 to 2000, it was 66 percent. The LCA report predicts
the area’s percentage of loss to be as much as 80 percent
from 2000 to 2050 if no new restoration occurs. If these
predictions are correct, this means that the BaratariaTerrebonne area would lose an additional 560 square miles
of coastal habitats.
Recent efforts have been completed to assess the magnitude of coastal land loss in Louisiana. Based on the available information, Louisiana has lost an estimated 1,900
square miles of coastal land between 1932 and 2000, roughly
an area the size of the state of Delaware. Additionally, the
best scientific estimates that are presented in the Louisiana
Coastal Area (LCA) Land Loss Report indicate that the Louisiana coast will lose an additional 700 square miles by the
year 2050.
These coastal habitats are economically, ecologically, and
culturally important not only to the residents who reside
here and the folks who visit, but they are also valuable to
the Nation. If these losses continue, the impacts on human
populations, oil and gas infrastructure, fisheries and the
seafood industry, and wildlife will be unimaginable.
The area currently undergoing the greatest wetland loss is
the Barataria and Terrebonne basins - the area essentially
between the Atchafalaya and Mississippi rivers. From 1956
to 1978, Barataria-Terrebonne accounted for 43 percent of
Louisiana’s coastal wetland loss. From 1978 to 1990, this
It is your responsibility to become educated about these
issues and inform your elected officials about your thoughts.
Many informative products have been developed that address Louisiana’s biggest environmental problem, including
brochures, reports, videos, maps, cd’s, etc. For more information or to find out how to receive these products, visit
the Web sites below.
www.lacoast.gov
www.savelawetlands.org
www.crcl.org
www.estuaries.org
www.btnep.org
www.americaswetland.com
Barataria-Terrebonne
Estuarine System
The Barataria-Terrebonne Estuarine System consists of two
estuarine
basins separated by Bayou
Lafourche.
The Terrebonne
The Barataria-Terrebonne
Estuarine
System
estuary
lies
to
the
west,
and
the
Barataria
estuary
to theby
east.
consists of two estuarine basins separated
Bayou Lafourche. The Terrebonne estuary lies to
the west, and the Barataria estuary to the east.
Dear Friends,
Thirteen years ago, the State of Louisiana made a momentous pledge to you and to
the nation. As part of that pledge, the State of Louisiana and the United States of
America agreed that the Barataria and Terrebonne systems, the entire area between
the Mississippi and Atchafalaya Rivers, were nationally important yet critically threatened. The U.S. Environmental Protection Agency (EPA), on behalf of the U.S.
government, pledged to elevate the status of this entire region to a “National Estuary”.
To fulfill Louisiana’s portion of the pledge, representatives from business and industry,
universities, local governments, Federal and State agencies, farmers, fishermen, and
teachers gathered in 1991 to begin developing a comprehensive plan to restore and
preserve the newly designated Barataria-Terrebonne National Estuary.
It was an ambitious and courageous endeavor. It was ambitious because the effort
was going to require thousands of hours and hundreds of people working together
over a 5-year period to develop a comprehensive plan. It was courageous because it
represented a major change in the way we addressed the restoration and preservation
of a complex natural system. The people and groups that together formed the
Barataria-Terrebonne National Estuary Program (BTNEP) drove the entire plan
development process through consensus.
BTNEP is now in the most important phase of its existence. We are actively
implementing our comprehensive plan, taking advantage of the enormous support we
have created together as a National Estuary Program. We are driven by the common
desire to save a system that is disappearing before our eyes: system suffering from
coastal wetland loss, degrading water quality, and adverse changes to our fish and
wildlife resources. We wish to see a system capable of sustaining and protecting our
homes, the places we work and play, and our way of life. Perhaps more importantly,
we want these things for our children and grandchildren.
How can you help? You must first arm yourselves with information. Educate yourselves now. Do you know what restoration efforts are being planned to protect the
near-term future of your homes and communities? Do you think a high enough
priority is being put on the protection of your families, your communities, your way of
life, the highways you use to flee hurricanes, the places where you work, your drinking water supplies, the birds you enjoy, or the fish, crabs, and shrimp you catch?
There is nothing more important than these things. And you can learn much more of
the ongoing efforts to protect them.
Story lines provided in this calendar serve only as a place to start. For more information, visit our web site, www.btnep.org or call 800-259-0869. Here you will find out
how to obtain free videos, brochures, CD-ROMs, and maps that address a number of
ecological, economic, and cultural issues and the efforts of the Barataria-Terrebonne
National Estuary Program. You will also find links to other sights that address issues
such as coastal restoration, fish and wildlife management, cultural resources,
education, and many more.
Join us in this struggle. Become informed. Be heard.
With Warm Regards,
The Barataria-Terrebonne National Estuary Program
It is important for you to realize that we are all still on the losing side of this war to
save the Barataria-Terrebonne Basins against the forces of subsidence and erosion.
While there is certainly still hope that we will succeed, the solutions to our problems
are far more costly than the current funding levels available to State and Federal
restoration efforts. We must succeed… or this place that for generations has defined
who we are as people, will be lost forever.
We are encouraged by our elected officials increasing commitment to coastal
restoration and the need to educate the nation that we are serious about protecting
the natural treasures in our own backyards. United, we can send that clear and
resounding message to the nation: This place that we are blessed to call HOME will
be defended by us all...together.”
This public document was published at a total cost of $9,300.00. Ten thousand copies of this public document
were published in this first printing at a cost of $9,300.00. The total cost of all printings of this document, including
reprints, is $9.300.00. This document was published by the Barataria-Terrebonne National Estuary Program,
NSU Campus, P.O. Box 2663, Thibodaux, LA 70310, to provide the public with environmental information under
the authority of La. R.S. 30:2011. This material was printed in accordance with standards for printing by state
agencies established pursuant to La. R.S. 43:31.
1934
Disclaimer
This product is intended for use soley as a reference guide to Louisiana fishing. It is not intended for
navigational use. BTNEP makes no warrenty, expressed or implied, with respect to the accuracy or
completeness of the information contained in this document. BTNEP assumes no liability with respect to
the use of, or damages resulting from the use of any information contained in this document.

2004 Tidal Graph Calendar

Transcription

Similar documents

The Boston Bombing: An Interagency Response

10 Things You Should Know about Current Dual Language Research

presentation - Command and Control Research Portal

Online e-Registration Instruction Manual

iTVFusion 2016 - Minerva Networks

Long-Range Application Focus - Copenhagen Sensor Technology

Proceedings of Business Meet on Use of Concentrating Solar