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Diets of Silver Chub (Macrhybopsis storeriana) in western Lake Erie, 2014


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Kocovsky, P.M., 2018, Diets of Silver Chub (Macrhybopsis storeriana) in western Lake Erie, 2014: U.S. Geological Survey data release,


Diet and estimated ages of Silver Chub (Macrhybopsis storeriana) collected by the US Geological Survey in western Lake Erie in 2014 are presented. Fish were frozen in the field at -20 C and dissected in the lab. Ages were estimated by one experienced biologist who estimated ages twice, then reconciled age estimates when the two age estimates differed. Diet taxa were enumerated, dried individually at 60 F until stable weight was achieved (~24-48 hrs), then weighed. Zero weights for non-zero counts indicates dry weight was below detection limit of the scale used.


Point of Contact :
Patrick Kocovsky
Originator :
Patrick Kocovsky
Metadata Contact :
Patrick Kocovsky
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
USGS Mission Area :
SDC Data Owner :
Great Lakes Science Center

Attached Files

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SCDiets.csv 4.82 KB
Diets_of_Silver_Chub_Macrhybopsis_storeriana_in_western_Lake_Erie_2014 (2).xml
Original FGDC Metadata

18.1 KB


Silver Chub were collected during routine sampling and during additional sampling conducted as part of the Coordinated Science Monitoring Initiative (CSMI). The CSMI program is a Great-Lakes-Wide program that collects identical data on all 5 of the Laurentian Great Lakes on a 5-year rotation. Silver Chub in Lake Erie are considered critically imperiled in Michigan and endangered in Ontario, hence interest in Silver Chub is to understand their biology to promote recovery.



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



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DOI doi:10.5066/F7JS9PC4

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