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  4. Bottom Trawl Catch Alewife Densities and Ages in Lakes Michigan and Huron

Bottom Trawl Catch Alewife Densities and Ages in Lakes Michigan and Huron

Dates

Publication Date
Start Date
1973
End Date
2022

Citation

Hondorp, D.W., Bunnell, D., Madenjian, C.P., and Honsey, A.E., 2024, Bottom Trawl Catch Alewife Densities and Ages in Lakes Michigan and Huron: U.S. Geological Survey data release, https://doi.org/10.5066/P95KVYGG.

Summary

This data release provides catch-per-unit-effort (CPUE) data by age-class for alewife (Alosa pseudoharengus) based on bottom trawl surveys from Lake Michigan (1973-2022) or Lake Huron (1976-2004). These data are associated with a study that sought to evaluate whether alewife populations across the Great Lakes are synchronous in their time series.

Contacts

Point of Contact :
David Bunnell
Originator :
Darryl W Hondorp, David Bunnell, Charles P Madenjian, Andrew E Honsey
Metadata Contact :
David Bunnell
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
Great Lakes Science Center
USGS Mission Area :
Ecosystems

Attached Files

Click on title to download individual files attached to this item.

CPUE_Age_SamplingYear_LM-LH v4.xml
Original FGDC Metadata
View 		20.57 KB application/fgdc+xml
CPUE by age per sampling year_Lake Huron.csv 6.3 KB text/csv
CPUE by age per sampling year_Lake Michigan.csv 12.71 KB text/csv

Purpose

These bottom trawl data were collected to generate an index of prey fish abundance. Broadly speaking, the survey data are used by stakeholders to inform stocking decisions for salmonines and by fishery scientists to describe population dynamics and evaluate hypotheses seeking to evaluate factors underlying spatial and temporal variation.

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Communities

  • Great Lakes Science Center (GLSC)
  • USGS Data Release Products

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Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P95KVYGG

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