They have both been criticised for declaring huge catches of the valuable fish, leading to fears for its sustainability.

BBC: Scots fishermen condemn Faroe Islands over herring move

They have both been criticised for declaring huge catches of the valuable fish in recent years, leading to fears for its sustainability.

BBC: No cod cuts hailed a 'good deal' for Scotland's fishermen

The island nations have been criticised for declaring huge catches of the valuable fish in recent years, leading to fears for its sustainability.

BBC: Mackerel

In its heyday of 1900, the waters of Cobscook Bay swarmed with herring and other valuable fish, drawn by the nutrients borne on those powerful tides.

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The small, soft, edible bones of fresh sardines and smelts and canned bone-in fish like salmon are valuable sources of calcium.

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"In many parts of the country, water is absolutely more valuable than gold, " says fish habitat and water consultant Shannon Skelton, who runs CFI Global Fisheries Management, a company that helps landowners manage their water assets.

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Officials also grumble about hypocrisy: fishermen quietly discard lots of fish so as to pack their holds only with the most valuable.

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With its rebuilt 15th century cathedral, shipyards and a fish-processing plant, Ceuta is viewed by Spain as the more strategically-valuable enclave.

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