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Filters: Tags: Fisheries Research (X) > partyWithName: Daniel L. Yule (X) > partyWithName: Zebadiah Woiak (X)

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Acoustic methods are used to estimate the density of pelagic fish in large lakes with results of midwater trawling used to assign species composition. Apportionment in lakes having mixed species can be challenging because only a small fraction of the water sampled acoustically is sampled with trawl gear. Here we describe a new method where single echo detections (SEDs) are assigned to species based on classification tree models developed from catch data that separate species based on fish size and the spatial habitats they occupy. During the summer of 2011, we conducted a spatially-balanced lake-wide acoustic and midwater trawl survey of Lake Superior. A total of 51 sites in four bathymetric depth strata (0–30 m,...
Categories: Publication; Types: Citation; Tags: Fisheries Research


    map background search result map search result map Use of classification trees to apportion single echo detections to species: Application to the pelagic fish community of Lake Superior Use of classification trees to apportion single echo detections to species: Application to the pelagic fish community of Lake Superior