thumbnail

Rainbow smelt (Osmerus mordax) as predators on young bloaters (Coregonus hoyi) in Lake Michigan

Journal of Great Lakes Research

By:
and

Links

  • The Publications Warehouse does not have links to digital versions of this publication at this time
  • Download citation as: RIS

Abstract

Examination of the stomach contents of rainbow smelt caught in bottom trawls in Lake Michigan during mid October, 1982, revealed that of 267 rainbow smelt (Osmerus mordax) with food in their stomachs, 56% (150) had eaten young of year fish. Nearly 15% of the prey fish consumed were bloaters (Coregonus hoyi), 21% were alewives (Alosa pseudoharengus), and the rest could not be positively identified but were probably bloaters and alewives. Although smelt predation did not appear to have affected bloater abundance, continued increases in smelt abundance and declines in alewife populations could lead to increased predator pressure on bloater stocks, which are in the process of rebuilding.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Rainbow smelt (Osmerus mordax) as predators on young bloaters (Coregonus hoyi) in Lake Michigan
Series title:
Journal of Great Lakes Research
Volume
11
Issue:
1
Year Published:
1985
Language:
English
Contributing office(s):
Great Lakes Science Center
Description:
p. 40-42
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of Great Lakes Research
First page:
40
Last page:
42