Natural polymers, chitin and chitosan, obtained from shells of crab and shrimp has been widely used in various fields.

以虾壳为主要原料制得的天然高分子化合物甲壳素和壳聚糖，资源丰富，应用范围十分广阔。

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A paddy field and fishpond simulation ecosystem was established to study the Fipronil pesticide environment behavior and its effects on crab and shrimp in the ecosystem.

通过建立稻田-鱼塘模拟生态系统，研究锐劲特农药在稻田-鱼塘模拟生态系统中的迁移、转化规律，及其对蟹、虾等水生生物的影响。

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When it became clear the temporary cod closure was permanent in all but name, the fishermen went after shrimp and snow crab, finding ready markets for their catch in Europe and the United States.

当渔民意识到鳕鱼休渔措施除了名义上是临时的，实际上已经永久化之后，就开始捕捞虾和雪蟹，在欧洲和美国很容易就找到了这了产品的市场。

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The spill comes shortly before the start of the fishing season for crab, shrimp and oysters.

VOA: special.2010.05.04

"Most of the fish,shrimp, blue crab they are spawning out in the Gulf right now, and any of those really small larvae fish and crab, is probably going to be killed if they encounter the actual oil spill."

VOA: standard.2010.07.13

And these mudbugs,as some call them, are about to become an even more important part of the region's seafood platters now that shrimp,oyster, and crab harvesting has been shut down in affected areas of the Gulf of Mexico.

VOA: standard.2010.06.17

For appetizers, Louisiana crab cakes and shrimp rmoulade are noteworthy.

FORBES: Fact and Comment

The spill also threatens the Louisiana and Mississippi fishing industry, as crab, oysters and shrimp along the coast could be affected, along with numerous species of fish.

CNN: Oil spill could be disaster for animals, experts say

Starr pays homage to the newest neighbourhood in his kingdom with a platter called The Fairmount (complete with oysters, littlenecks, crab, shrimp and lobster).

BBC: Philadelphia��s high-end restaurant battle