Their inland shrimp farm uses another fish, the tilapia, to mop up the shrimps' waste.

ECONOMIST: Fish farming

Overlooking the seafront, the menu includes a range of fish, calamari and shrimp dishes, plus dozens of small complimentary salads.

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Scientists are finding life that can resist the colossal pressures, from deep-sea fish to shrimp-like scavengers called amphipods, some of which can reach 30cm (1ft) long.

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Most types of white fish can substitute for the tuna in Esperanto's recipe and scallops and shrimp can be used as well, though they must be poached first.

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Teeny, whiskery brown shrimp, vast platters of fruits de mer, whole fish pleasingly scorched on the embers: simple stuff, simply served.

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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.

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They're not sure why, however, the scientists say perhaps it's because shrimp is low in fat and contains fish oils that are good for your heart.

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But it is widely accepted by scientists studying the crayfish invasion that this all started when an Egyptian businessman attempted to expand his fish farm industry by investing in shrimp.

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