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Detritus feeder : ( in French : détritivore) : organisms that feed
on decaying plants and animals.
Diurnal migration : ( in French : migration diurne ) : is the
movements of organisms from deeper water to the surface at
night to feed and their return to deeper water before dawn.
Diatoms and dinoflagellates : ( in French : diatomées et
dinoflagellés ) : are an example of phytoplankton found on the
surface of water.
Egg laying : (in French : pondre des œufs) : when organisms
produce eggs.
Entanglement : ( in French : enchevêtrement ) : when organisms
become caught or twisted in nets.
Enzyme : ( in French : une enzyme) : a substance produced by
living things which help chemical reactions happen more quickly.
Epifauna : ( in French :épifaune ) : are organisms found on the
seafloor.
Fatty fish : ( in French : poisson gras) : fish that are high in fatty
acids .
Feather : ( in French : les plumes) : it is the soft flat parts that
grow from the bird' s skin and cover its body .
Feed : ( in French : nourrir) : to eat food.
Filter feeders : ( in French : organisme filtreur ) : are organisms
that obtain their food by filtring a current of water .
Fin : ( in French : nageoire ) : is the thin flat part that sticks out
from the body of fish , used for swimming and keeping balance.
Food web : ( In French : chaine alimentaire ) : a series of living
creatures in which each creature feeds on the one below it in the
series.
Fresh weight : ( in french : poids frais ) : is the weight of a sample
after being drained of free water.
Gill : ( in French : branchie ) : one of the openings on the side of
a fish ‘s head through which it breathes.
Grazing fish : ( in French : les poissons herbivores) : is the fish
which the diet is predominantly based on plants.