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Methods of studying fish migrations
Salmon and trout
9 other sections not shown
adult Annls biol Atlantic autumn Bank Barents Sea behaviour bottom carried caught clues cm/sec coastal waters coho salmon Copenh Cultus Lake depth direction distribution Dogger downstream migrants drift eggs elvers European eels evidence feeding fish migrations fishery Fraser River freshwater Fridriksson gradient groups gyral Harden Jones Hasler hatched hypothesis Iceland immature larvae leptocephali Lofoten marked fish McClinton Creek move movement North Sea north-east Norwegian coast Norwegian Sea offish olfactory orientation otolith Pacific salmon parent stream pelagic perm pink salmon plaice recaptured recoveries released return to spawn Sandettie scale Schmidt shoals shown Skagerrak smolts sockeye salmon south-west Southern Bight southern North Sea spawners spawning area spawning grounds spawning migration spawning season species speed spring spawners step-length stimulus Strait suggested summer spawners surface swimming Table tagged fish tagging experiments temperature trout upstream vertebral count water currents West Greenland winter year-class zone