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- Title
The relationship between breeding coloration and mating success in male pygmy sculpin ( Cottus paulus Williams).
- Authors
Kierl, N.; Johnston, C.
- Abstract
Carotenoid-based coloration is well studied in birds and fishes because carotenoid pigments must be acquired from the diet, and therefore it may be used as an honest signal of condition. Females may select males based on the color and intensity of the carotenoid pigments found in a high quality male. The orange patches on the pectoral fins and body of male Pygmy Sculpin ( Cottus paulus) differ in aspects of coloration between successful and unsuccessful males (defined as nest holders who either obtain egg clutches or not); however, these males do not differ in length or condition. Within successful males, condition was correlated with mating success (average eggs gained and average egg clutches gained) but coloration was not. However, aspects of coloration were correlated with male condition. Female Pygmy Sculpin seem to prefer males with more intense coloration and that are in good condition, which may correlate with numerous benefits such as effective brood defense, decreased filial cannibalism and fungal infections.
- Subjects
FRESHWATER fishes; SCULPIN; ANIMAL coloration; FISH breeding; SEXING of fish
- Publication
Environmental Biology of Fishes, 2015, Vol 98, Issue 1, p301
- ISSN
0378-1909
- Publication type
Article
- DOI
10.1007/s10641-014-0260-9