Title
Early Life History Variation among Hatchery- and Wild-Origin Lake Trout Reared in a Hatchery Environment
Author(s)
McDermid, J. L., W. N. Sloan, C. C. Wilson, and B. J. Shuter
Published
2010
Publisher
Transactions of the American Fisheries Society
Abstract
Hatcheries play a key role in augmenting populations for conservation, harvest, or both, although rapid domestication and adaptation to hatchery conditions may lead to fish that are maladapted to natural environments. Three processes may lead to domestication: (1) negative selection against fish adapted to wild environments, (2) positive selection for fish that thrive in artificial conditions, or (3) relaxation of selection pressures. This study contrasts early life history traits and survival among wild- and hatchery-origin lake trout Salvelinus namaycush reared in a common hatchery environment to address the hypotheses of processes leading to domestication.
Full Citation
McDermid, J. L., W. N. Sloan, C. C. Wilson, and B. J. Shuter. 2010. Early Life History Variation among Hatchery- and Wild-Origin Lake Trout Reared in a Hatchery Environment. Transactions of the American Fisheries Society 139:21-28.
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