adj.在底部的，居于水底的

Demersal fish are abundant in these waters.
这些水域中底栖鱼类丰富。
The demersal zone is home to a variety of marine life.
底栖带是多种海洋生物的家园。
Trawling for demersal species can damage the seabed.
拖网捕捞底栖物种可能会破坏海床。
Many commercially important fish are demersal, such as cod and halibut.
许多具有商业价值的鱼是底栖的，如鳕鱼和比目鱼。
The demersal fish population has declined due to overfishing.
由于过度捕捞，底栖鱼类的数量已经下降。
Deep-sea corals provide vital habitat for demersal organisms.
深海珊瑚为底栖生物提供了至关重要的栖息地。
Scientists study the demersal layer to understand marine ecosystem dynamics.
科学家研究底栖层以了解海洋生态系统的动态。
Demersal fishing gears often have less impact on the environment than pelagic ones.
底栖捕鱼工具通常对环境的影响小于浮游生物捕鱼工具。
The distribution of demersal fish is influenced by the ocean's temperature and substrate.
底栖鱼类的分布受海水温度和底质的影响。
Specialized hooks are used to catch certain demersal species without harming them excessively.
使用专门的钓具来捕捉特定的底栖物种，同时尽量减少对它们的伤害。