The effect of temperature on growth of juvenile bloater
Journal of Great Lakes Research
By: Thomas A. Edsall and Anthony M. Frank
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Abstract
The bloater (Coregonus hoyi), which feed mainly on invertebrates and in turn is eaten by lake trout (Salvelinus namaycush) and burbot (Lota lota), is a major trophic integrator in coldwater ecosystems in the upper Great Lakes. To better understand their thermal niche and habitat distribution, we acclimated groups of yearling bloater to 3, 5, 10, 20, or 25A?C and then fed them ad libitum for 35 days. Bloater increased in length and weight at all of the test temperatures and at the end of the study were heaviest and longest at 15-20A?C. The specific growth rate was highest at 20 deg C and progressively lower at 15, 25, 10, 5, and 3A?C. A curve fitted to the specific growth rate data indicated that the optimum temperature for growth was 18.6A?C. Our results are in agreement with other published information on the thermal ecology of juvenile bloater.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | The effect of temperature on growth of juvenile bloater |
| Series title | Journal of Great Lakes Research |
| Volume | 23 |
| Issue | 4 |
| Year Published | 1997 |
| Language | English |
| Contributing office(s) | Great Lakes Science Center |
| Description | p. 468-471 |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Journal of Great Lakes Research |
| First page | 468 |
| Last page | 471 |
| Google Analytic Metrics | Metrics page |