Pelvetia canaliculata Channel wrack Ecology and identification

Pelvetia
canaliculata
Channel wrack
Ecology and
identification
High shore alga
often forming a
clear zone on
more sheltered
shores
Evenly forked
fronds up to 15cm
long that are
rolled to give a
channel no one
side
Fucus spiralis
Spiral Wrack
Ecology and
identification
High shore alga
often forming a
clear zone below
Pelvetia on more
sheltered shores
Similar
species
Found slightly
higher than
Fucus spiralis.
Fronds in
F.spiralis are flat
and twisted
Similar
species
Fucus
vesiculosus
which has
distinctive air
bladders
Fronds in F.spiralis
are flat and
twisted and up to
20cm long. NO air
bladders.
Ascophyllum
nodosum
Ecology and
identification
Similar
species
Egg or Knotted
Wrack
Most
characteristic mid
shore alga in
shelter
Fucus
vesiculosus
which has
paired circular
air bladders
Leathery fronds up
to a metre long,
no mid-rib and
single egg-shaped
air-bladders
Fucus vesiculosus
Bladder Wrack
Ecology and
identification
Similar
species
Fucus serratus
Ecology and
Similar species
identification
Laminaria digitata
Ecology and
Similar species
identification
Ulva intestinalis
Ecology and
Similar species
identification
Actinia equine
Beadlet anemone
Ecology and
Similar species
identification
Patella vulgata
Ecology and
Similar species
identification Patella
The common
limpet of the
middle to low
shore. Animals
flatter low
down the
beach. Inside of
shell
grey/green:
Foot olive green
to grey:
Tentacles clear.
Patella ulyssiponensis
ulyssioponensis
which is found
in rock pools
and at the
lowest shore
levels
Ecology and
Similar species
identification Patella vulgata
Found in rock
pools and at the
lowest shore
levels. May be
covered by
algae.
Inside of shell
white, foot
orange and
tentacles white.
Littorina littorea
Ecology and
Similar species
identification Littorina
A large black
winkle living in
the mid-shore.
saxatilis agg.
Usually has fine
black stripes
perpendicular
to lip of the
shell
Littorina saxatilis agg
Ecology and
Similar species
identification Littorina
Small to
littorea
medium sized
snail with sharp
spire often
abundant in
upper shore.
Taxonomy
disputed and
may be a
complex of
several species.
Nucella lapillus
Ecology and
Similar species
identification
Gibbula umbilicalis
Ecology and
Similar species
identification
Gibbula cineraria
Ecology and
Similar species
identification
Mytilus edulis
Ecology and
Similar species
identification
Semibalanus
balanoides
Ecology and
Similar species
identification
Chthamalus montagui
Ecology and
Similar species
identification
Carcinus maenas
Ecology and
Similar species
identification
Eupagurus bernhardus
Ecology and
Similar species
identification