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Fish Scales From Norway Show Ocean Fate Of Atlantic Salmon

Achilles Tang

By Achilles Tang,
in General Reefkeeping_

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Achilles Tang

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Since 1983, sports fishermen from the Drammen River in Norway have been saving the scales of Atlantic salmon, caught as they return from years at sea to spawn in fresh water. Researchers are using these scales to solve the mystery of why most of these endangered fish never survive their ocean stay. Climate change may be one of several factors affecting this temperature sensitive species, bringing warmer water to the nursery areas and decreasing the numbers of small fish that salmon depend on for food.

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