魚類學相關名詞中英對照
名詞 定義 
year class All the individuals of a population of fishes born or hatched in the same year. After this brood is recruited to the fishery it appears year after year until all its members die. Also called brood, year brood, cohort or generation. In the northern hemisphere where spawning occurs in fall and hatching in spring, the calendar year of the hatch is commonly used to identify the year class, except usually for salmonids (Ricker, 1975). The biomass of a year class initially increases as fish grow, reaches a peak at a certain age depending on the species, food availability and mortality, and then starts to decrease as fish die off and growth slows.  
年級 在同年內出生或孵化的魚族群的所有個體。在這窩被補充到它的漁場,年覆一年直到它所有的成員死亡。也稱作窩,年窩,系群或世代。在北半球的在秋天產卵和在春天孵化,日曆年的孵化是通常用來鑑定每年級,通常除了鮭魚之外。 
※中文內容系使用機器由英文內容翻譯。