Data from: Redder isn’t always better: cost of carotenoids in Chinook salmon eggs

Sarah J. Lehnert, Robert H. Devlin, Trevor E. Pitcher, Christina A.D. Semeniuk & Daniel D. Heath
Carotenoids provide animals with many fitness benefits through increased mating success, immune function, gamete quality, and antioxidant capacity. Despite these benefits, carotenoids are not utilized equally by all animals, implying trade-offs associated with the pigments; although, few studies have quantified fitness costs of carotenoid pigmentation. Salmon are known for their conspicuous red coloration; however, amongst Chinook salmon (Oncorhynchus tshawytscha), a natural genetic color polymorphism exists (red and white morphs) which results in carotenoid-based color differences...
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