espèce (1) phytoplancton (1) poisson (1) oeuf (1) Mer noire (1) adulte (1) profession (1) Case (1) Implements (1) Area (1) Surveys (1) Area (1) Water (1) Tools (1) Surveys (1) Struggle (1) Species (1) Spawning (1) Spanish sardine (1) Phytoplankton (1) July (1) Indexes (1) Grammar, Comparative and general--Case (1) Fishes--Larvae (1) Fishes--Eggs (1) Fishes (1) Engraulis encrasicolus (1) Chub mackerel (1) Cells (1) Case (1)