Ichthyology is the study of fish.

鱼类是研究鱼类科。

I'm curator of ichthyology and co-director of the Hope for Reefs Initiative at the California Academy of Sciences.

我是加州科鱼类馆长和珊瑚礁希望联合主任。

We stayed on watch before the lounge windows, and our notes enable me to reconstruct, in a few words, the ichthyology of this sea.

我也得不到，因为这个神秘人物在这次快速度航海牛，一次也没有出来。