Fish were a vital commodity in growing towns and cities, where food supplies were a constant concern.

在不断发展的城镇和城市里，鱼是一种重要的商品，那里的食物供应一直是人们关注的问题。

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This levelling off, coupled with a growing world population and increasing per capita demand for fish, spells trouble.

这种停滞不前加上世界人口不断增长和人均鱼品需求量的扩大都将造成问题。

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Fish farming is seen as an important way to help feed a growing world.

养鱼业也被认为是一个重要途径，以帮助提供鱼量给日益增长的世界需求。

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They say thirty million tropical fish are disappearing every year because of a growing interest in tropical fish.

VOA: special.2010.08.10

Campaigners, with the support of marine scientists, have repeatedly tried to persuade countries to agree to an international ban, arguing that the indiscriminate nature of bottom-trawling is causing irreversible damage to coral reefs and slow-growing fish species, which can take decades to reach maturity and are therefore slow to replenish their numbers.

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Such troubles are unlikely to sap growing global demand for fish and other aquaculture products.

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Fish farms are growing in some countries.

CNN: Governments trying to reel in 'ocean sprawl'