The vertical distributions and spawning site choices of red and yellow bluefin killifish Lucania goodei colour morphs

Journal of Fish Biology
Chia-Hao ChangRebecca C Fuller

Abstract

A genetic colour polymorphism is present in bluefin killifish Lucania goodei, where red and yellow anal-fin morphs coexist in clear springs, but the source of balancing selection is unknown. In a field study, vertical distributions did not differ between the morphs and there was little evidence that light environments differed qualitatively over the 200 cm at which fish were collected. A greenhouse study showed that both morphs preferred to spawn at shallow depths and hence vertical distribution and spawning site choice are unlikely to explain the maintenance of the colour polymorphism.

References

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Jun 15, 2010·The Journal of Experimental Biology·Brian E DaltonKaren L Carleton
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Sep 25, 2014·Molecular Ecology·Maren WellenreutherBengt Hansson
Jan 11, 2016·Evolution; International Journal of Organic Evolution·Zachary W Culumber, Michael Tobler

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