Patterns of declining zooplankton energy in the northeast Atlantic as an indicator for marine survival of Atlantic salmon
Emma Tyldesley,
Neil S Banas,
Graeme Diack
et al.
Abstract:Return rates of Atlantic salmon (Salmo salar) from the sea to European rivers have declined in recent decades. The first months at sea are critical for growth and survival; recent evidence suggests that reduced food availability may be a contributory factor to the observed declines. Here, zooplankton abundance data are used to derive a measure of prey energy available to forage fish prey of salmon during early marine migration. This zooplankton prey energy has significantly and dramatically declined over much … Show more
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