Diet Data from the Western Basin of Lake Erie Examining White and Yellow Perch, 2012-2016
Dates
Publication Date
2019-12-05
Start Date
2012-06-01
End Date
2016-09-30
Citation
Keretz, K.R., Kraus, R.T., and Schmitt, J.D., 2019, Diet Data from the Western Basin of Lake Erie Examining White and Yellow Perch, 2012-2016: U.S. Geological Survey data release, https://doi.org/10.5066/P9EZARDQ.
Summary
A fish’s diet is the integrated response of multiple ecological interactions including habitat use, foraging behavior, prey community characteristics, and inter-specific interactions. Fish diet samples have quantified how the invasion of white perch into Lake Erie in the early 1950s has influenced interactions with native yellow perch, which are similar in morphology and habitat use. Early research largely concluded that given the high foraging efficiency of white perch there is both high potential for inter-specific competition and that the invasion of white perch has negatively affected yellow perch. As part of a biannual (spring and autumn) Lake Erie Western Basin Forage Fish Assessment, the USGS Lake Erie Biological Station collected [...]
Summary
A fish’s diet is the integrated response of multiple ecological interactions including habitat use, foraging behavior, prey community characteristics, and inter-specific interactions. Fish diet samples have quantified how the invasion of white perch into Lake Erie in the early 1950s has influenced interactions with native yellow perch, which are similar in morphology and habitat use. Early research largely concluded that given the high foraging efficiency of white perch there is both high potential for inter-specific competition and that the invasion of white perch has negatively affected yellow perch. As part of a biannual (spring and autumn) Lake Erie Western Basin Forage Fish Assessment, the USGS Lake Erie Biological Station collected and analyzed diets of age-2-and-older yellow perch and white perch from 2012-2016 to assess possible inter-specific ecological interactions. Information collected from the diets (presence/absence of prey and dry weight of prey (g)) and effort data (coordinates of fish capture) have been uploaded. Information on how fish were captured and how diets were processed can be found in the meta data document provided.
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YP-WP metadata_v2.xml Original FGDC Metadata
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YP-WP diet data 2012-2016.csv
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Purpose
The purpose of the Lake Erie Western Basin Forage Fish Assessment is to develop a comprehensive understanding of the long-term changes and population dynamics of key fishes of interest to management agencies, including native percids and their forage. Data from the assessment included in the current data release (age-2-and-older yellow perch and white perch diet data) was done so in order to increase knowledge and understanding of the interactions between native and non-native fish species in Lake Erie.
