Implications of stunting on morphology of freshwater fishes
Journal of Fish Biology
By: C.J. Chizinski, K.L. Pope, G.R. Wilde, and R. E. Strauss
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Abstract
The purpose of this study was to assess morphological differences between stunted and non-stunted white perch Morone americana and green sunfish Lepomis cyanellus. Few female M. americana were captured; thus, morphological differences between adult males and juveniles were assessed for M. americana. Similarly, few immature (juvenile) L. cyanellus were captured for the stunted morphotype; thus, male and female morphological differences were assessed for L. cyanellus. Features of the head tended to be relatively larger in stunted fish of both species, whereas the mid-body tended to be relatively larger in non-stunted M. americana, but not in non-stunted L. cyanellus. Adult and juvenile morphology overlapped considerably in non-stunted M. americana, but there was a clear distinction between adult and juvenile morphology of stunted M. americana. There was little sexual dimorphism in shape in stunted L. cyanellus, whereas sexual dimorphism was evident in non-stunted L. cyanellus. It appears that selective forces imposed by predation and food limitation may contribute to morphological diversification between stunted and non-stunted fishes. ?? 2010 The Authors. Journal compilation ?? 2010 The Fisheries Society of the British Isles.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Implications of stunting on morphology of freshwater fishes |
| Series title | Journal of Fish Biology |
| DOI | 10.1111/j.1095-8649.2009.02498.x |
| Volume | 76 |
| Issue | 3 |
| Year Published | 2010 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Journal of Fish Biology |
| First page | 564 |
| Last page | 579 |
| Google Analytic Metrics | Metrics page |