German translation: alljährliche Wanderung der Regenbogenforellen
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English to German translations [PRO] Science - Fisheries
English term or phrase:an annual run of steelhead trout
Within this ultra-lush ecosystem is a long list of some of the neatest and most reclusive animals found in British Columbia, including more than 60 salmon streams, *an annual run of steelhead trout*, wolves, grizzly bears, bald and golden eagles, killer whales, porpoises and rare elephant seals.
Da ich es nicht besser weiß, lautet meine vorläufige Übersetzung: viele Stahlkopfforellen ;-)