作者: Julie D'Amours , Stéphanie Thibodeau , Réjean Fortin
DOI: 10.1139/Z01-095
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摘要: Several fish species that spawn in lotic habitats have a larval-drift phase which is major determinant of their reproductive success. The main objective this study was to compare seasonal, diel, longitudinal, transverse, and vertical variations rates lake sturgeon (Acipenser fulvescens), Stizostedion spp., Catostomus Moxostoma quillback (Carpiodes cyprinus), mooneye (Hiodon tergisus) larval drift Des Prairies River (DPR) near Montreal (Quebec), one the spawning St. Lawrence system. Larval sampling conducted spring 1994 1995 for six taxa, on more restricted basis 19961998, using nets set at several transects, stations, depths, periods day, along 19 km long section river beginning ca. 2 downstream from DPR power house. For all taxa except sturgeon, peak occurred 1 week earlier than 1994. sequence very similar betwe...