In addition, the macroalgae served as a primary producer in the paleoecosystem to provide an alternative food for the metazoarl.

同时，宏体藻类作为生态系统中的初级生产者成为一种新的食物，改变了后生动物的食谱。

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Phytoplankton is the main food to the bivalve filter-feeders and the marine primary producer, so the impacts on the phytoplankton community by scallop culture deserve studying.

浮游植物是滤食性贝类的主要饵料，也是海洋主要的初级生产者，因此研究贝类养殖对浮游植物群落的影响具有重要的科学意义。

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