Cucherousset, J., Aymes, J.C., Poulet, N., Santoul, F. and Cereghino, R., 2008. Do Native Brown Trout and Non-Native Brook Trout Interact Reproductively? Naturwissenschaften, 95 (7), pp. 647-654.
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Official URL: http://dx.doi.org/10.1007/s00114-008-0370-3
Reproductive interactions between native and non-native species of fish have received little attention compared to other types of interactions such as predation or competition for food and habitat. We studied the reproductive interactions between non-native brook trout (Salvelinus fontinalis) and native brown trout (Salmo trutta) in a Pyrenees Mountain stream (SW France). We found evidence of significant interspecific interactions owing to consistent spatial and temporal overlap in redd localizations and spawning periods. We observed mixed spawning groups composed of the two species, interspecific subordinate males, and presence of natural hybrids (tiger trout). These reproductive interactions could be detrimental to the reproduction success of both species. Our study shows that non-native species might have detrimental effects on native species via subtle hybridization behavior.
|Subjects:||Geography and Environmental Studies|
Science > Biology and Botany
|Group:||School of Applied Sciences > Centre for Conservation, Ecology and Environmental Change|
|Deposited By:||INVALID USER|
|Deposited On:||04 Dec 2008 16:27|
|Last Modified:||07 Mar 2013 14:59|
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