Rainbow smelt (Osmerus mordax) as predators on young bloaters (Coregonus hoyi) in Lake Michigan
Journal of Great Lakes Research
By: Ralph M. Stedman and Ray L. Argyle
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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-the-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.
| 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 |
| DOI | 10.1016/S0380-1330(85)71741-8 |
| Volume | 11 |
| Issue | 1 |
| Year Published | 1985 |
| Language | English |
| Publisher | Elsevier |
| Contributing office(s) | Great Lakes Science Center |
| Description | 3 p. |
| First page | 40 |
| Last page | 42 |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |