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Hatchery and Wild Stock Interactions of Juvenile Chum Salmon in Marine Waters of Southeastern Alaska: A Bioenergetics Approach

机译:孵化场和野生股在阿拉斯加东南部海水中少年少年鲑鱼的股票相互作用:生物能器方法

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As part of the Southeastern Alaska Coastal Monitoring project, the interactions of hatchery and wild stocks of juvenile chum salmon (Oncorhynchus keta) migrating seaward were studied in littoral (nearshore) and neritic (epipelagic offshore) marine habitats in southeastern Alaska. Bioenergetics modeling was used to estimate prey consumption by different salmon stock groups during their first five months at sea. Model runs were completed using biophysical data collected in Icy Strait, a regional salmon migration corridor, in May, June, July, August, and September of 2001 (Fig. 1). These data included: temperature (l-m surface versus surface to 20-m average), zooplankton standing crop (surface to 20-m depth versus entire water column), salmon diet (percent weight of prey type consumed), and energy densities, weight, and growth of juvenile chum salmon.
机译:作为阿拉斯加东南部的沿海监测项目的一部分,在阿拉斯加东南部的陆地(近岸)和书呆子(ePipelagic海上)海洋栖息地,研究了迁移的少年少年鲑鱼鲑鱼(Oncorhynchus Keta)的互动和野生股的相互作用。生物能源造型模型用于在海上前五个月内通过不同的鲑鱼储备群估算牺牲品消费。模型运行使用冰冷的海峡,区域鲑鱼移民走廊,2001年5月,7月,8月和2001年9月,使用生物物理数据完成使用生物物理数据。这些数据包括:温度(LM表面与表面为20-M平均),浮游动物常设作物(表面到20米深度与整个水柱),三文鱼饮食(百分比的猎物类型消耗),和能量密度,重量,重量,重量少年鲑鱼的生长。

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