Zobrazeno 1 - 4
of 4
pro vyhledávání: '"James P. Fredericks"'
Autor:
James P. Fredericks, Daniel J. Schill, Nicholas C. Wahl, Charles E. Corsi, Matthew P. Corsi, Andrew M. Dux, Ned J. Horner, Michael J. Hansen
Publikováno v:
Hydrobiologia. 840:319-333
The nonnative lake trout (Salvelinus namaycush Walbaum, 1792) population in Lake Pend Oreille, Idaho increased exponentially during 1999–2006. This led to an unsustainable level of predation mortality on kokanee (Oncorhynchus nerka Walbaum, 1792),
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e9a490d39fad7b85f0f65e444c13b86
https://doi.org/10.1007/s10750-019-3913-z
https://doi.org/10.1007/s10750-019-3913-z
Use of Surface Visual Counts for Estimating Relative Abundance of Age-0 Paddlefish in Lake Sakakawea
Publikováno v:
North American Journal of Fisheries Management. 17:1014-1018
We describe a method for assessing relative reproductive success and year-class strength of paddlefish Polyodon spathula in reservoirs based on visual surface counts of age-0 fish in late summer and early fall. In 1992 and 1993, we visually counted a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c66a2a51f56668595247e0518f18a7a5
https://doi.org/10.1577/1548-8675(1997)017<1014:uosvcf>2.3.co
https://doi.org/10.1577/1548-8675(1997)017<1014:uosvcf>2.3.co
Autor:
James P. Fredericks, Steve Hendricks
The objective of this study was to determine if recruitment is limiting the population of rainbow trout Oncorhynchus mykiss in the mainstem Kootenai River. The authors used snorkeling and electrofishing techniques to estimate juvenile rainbow trout d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80672439d26f58e4d1c95181acbf1e48
https://doi.org/10.2172/290980
https://doi.org/10.2172/290980
In an effort to recover the declining kokanee Oncorhynchus nerka kennerlyi population in Lake Pend Oreille, a study was proposed to evaluate the benefits of a higher winter elevation, thus providing more spawning gravel for kokanee. This project was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c78ae501071adf5b713207ab5d02520d
https://doi.org/10.2172/266882
https://doi.org/10.2172/266882