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Scaling Salmonid Life History by Habitat Area: A Conceptual Approach to Estimating Estuarine Conservation Needs

机译:栖息地区的萨米德生活史:估计河口保护需求的概念方法

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Methods to define the critical estuarine habitats of salmon are needed to support conservation initiatives and species recovery strategies. In this paper, we describe a conceptual approach that might be useful for this task. Growth rates and estimatesof food consumption for ocean-type Chinook salmon Oncorhnychus tshawytscha rearing in four estuaries (Squamish River estuary, Nanaimo River estuary, Campbell River estuary, and Eraser River estuary) discharging into the Strait of Georgia, British Columbia, Canada, were compiled using literature data and a bioenergetic model. Consumption data were then scaled according the areal extent of four habitats (open water, sand flats, marsh, and riparian) often used as surrogates for fish food production. We documented between-estuary variations in the scaled consumption data, possibly related to inter-estuary differences in habitat quantity, quality, or population-specific growth. Further analysis, calibration, and verification are needed before implementation of the concept.
机译:需要保护鲑鱼临界河口栖息地的方法,以支持保护举措和物种回收策略。在本文中,我们描述了一种可能对此任务有用的概念方法。在四个河口(Squamis River Entuary,Nanaimo River Antuary,Campbell Antuary)释放到格鲁吉亚海峡,加拿大不列颠哥伦比亚省哥伦比亚海峡(Squamis River Antuary,Nanaimo River Antuary),加拿大海峡,加拿大海峡(Squamis River Antuary)TSCORHNYCHUS TSCORHNUS TSCORHNYCONS TSCORHNYCHUS TSCORHNYCHUS TSCORHNYCONSCHA的增长率和估算使用文献数据和生物共和模型。然后根据四个栖息地的面积(开放水,沙舱,沼泽和河岸)的面积来扩展消费数据,通常用作鱼类食品生产的替代品。我们在划分的消费数据中记录了浅之间的变化,可能与栖息地数量,质量或人口特异性增长中的口间差异有关。在实施概念之前需要进一步分析,校准和验证。

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