作者: Owen T Gorman , Daniel L Yule , Jason D Stockwell , None
DOI: 10.1080/14634988.2012.715972
关键词:
摘要: Diel patterns of distribution fishes in nearshore (15–80 m depth) and offshore (>80 m) waters the Apostle Islands region Lake Superior were described using bottom trawls, mid-water acoustic gear during day night sampling. These data revealed three types diel migration: vertical migration (DVM), bank (DBM), no migration. DVM was expressed by migrating from benthopelagic to pelagic strata DBM horizontally deeper shallower at while remaining within stratum. Most that did not exhibit showed increased nighttime densities as a result activity movement benthic strata. Rainbow Smelt (Osmerus mordax), Cisco (Coregonus artedi), Bloater (C. hoyi), Kiyi kiyi), juvenile Trout-Perch (Percopsis omiscomaycus), adult siscowet (Salvelinus namaycush siscowet) exhibited DVM. Whitefish clupeaformis...