Zobrazeno 1 - 10
of 22
pro vyhledávání: '"David A. Schmetterling"'
Publikováno v:
Fishes, Vol 8, Iss 1, p 28 (2022)
Body condition indices are commonly used in the management of fish populations and are a surrogate to physiological attributes such as tissue-energy reserves. Relative condition factor (Kn) describes the condition of species relative to populations i
Externí odkaz:
https://doaj.org/article/40cedbea254a4eb5988722c71d538963
Autor:
Jay J. Rotella, Christopher S. Guy, Steven R. Dalbey, Hayley C. Glassic, David A. Schmetterling, Cody J. Nagel
Publikováno v:
Journal of Applied Ichthyology. 36:559-567
Excessive fishing pressure can induce population declines or complete collapse of fisheries. Unless commercial and recreational fisheries for K‐selected fishes, or those with slow growth and late maturation, are carefully managed, declines in abund
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5751d2b803eea8494ecf4c142bb6029b
https://doi.org/10.1111/jai.14067
https://doi.org/10.1111/jai.14067
Autor:
David A. Schmetterling, Ryan P. Kovach, Clint C. Muhlfeld, Jonathan B. Armstrong, Robert Al-Chokhachy
Publikováno v:
Canadian Journal of Fisheries and Aquatic Sciences. 75:1960-1968
We used redd count data from 88 bull trout (Salvelinus confluentus) populations in the upper Columbia River basin to quantify local and regional patterns in population dynamics, including adult abundance, long-term trend, and population synchrony. We
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4df81b822df083a0bda99ed6c2d7d7d4
https://doi.org/10.1139/cjfas-2017-0466
https://doi.org/10.1139/cjfas-2017-0466
Autor:
Ron Pierce, Leslie G. Nyce, Brad Liermann, Robert Al-Chokhachy, Pat Saffel, David A. Schmetterling, Chris Clancy, Wade Fredenberg, Ryan P. Kovach
Publikováno v:
Canadian Journal of Fisheries and Aquatic Sciences. 73:1395-1404
Understanding how climate change may facilitate species turnover is an important step in identifying potential conservation strategies. We used data from 33 sites in western Montana to quantify climate associations with native bull trout (Salvelinus
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb0a14eacda8c72041a7ecfadf8446ed
https://doi.org/10.1139/cjfas-2015-0293
https://doi.org/10.1139/cjfas-2015-0293
Publikováno v:
Copeia. 103:416-428
The upper Clark Fork River basin of western Montana supports a poorly understood sculpin (Uranidea spp.) fauna that has perplexed ichthyologists and fish ecologists since the late 1800s. During our study, the basin contained three sculpin taxa whose
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2c9ad9032ed42f6a6731561e23f10ce
https://doi.org/10.1643/ce-14-229
https://doi.org/10.1643/ce-14-229
Publikováno v:
North American Journal of Fisheries Management. 32:823-831
Electrofishing-based estimates of fish abundance are common. Most population models assume that samples are drawn from a closed population, but population closure is sometimes difficult to achieve. Consequently, we individually electrofished 103 radi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a41d7c931db4f1bacb2c6b37d0ab47d7
https://doi.org/10.1080/02755947.2012.703158
https://doi.org/10.1080/02755947.2012.703158
Autor:
Robert Al-Chokhachy, Fred W. Allendorf, Jeffrey L. Kershner, Gordon Luikart, Ryan P. Kovach, Clint C. Muhlfeld, Robb F. Leary, Winsor H. Lowe, Phil Matson, Andrew R. Whiteley, Bradley B. Shepard, Peter A. H. Westley, David A. Schmetterling, Stephen J. Amish, Diane C. Whited
Publikováno v:
Global Change Biology. 23:e11-e12
We appreciate the comments of Young et al. (2017) on our recent paper (Muhlfeld et al., 2017) concerning spatiotemporal dynamics of hybridization between native westslope cutthroat trout (Oncoryhnchus clarkii lewisi; WCT) and introduced coastal rainb
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c04ded1ea9897d5f70d0085730659507
https://doi.org/10.1111/gcb.13825
https://doi.org/10.1111/gcb.13825
Publikováno v:
Copeia. 2009:117-124
Like many species of amphibians, Boreal Toads (Bufo boreas boreas, Bufonidae) are declining throughout portions of their range. Recent efforts have focused on describing the ecology of this species, yet few studies have evaluated demographic characte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec61baadbd34a60bdbe13e8afd5a936d
https://doi.org/10.1643/ce-07-188
https://doi.org/10.1643/ce-07-188
Publikováno v:
Journal of Herpetology. 42:111-123
The Boreal Toad (Bufo boreas boreas) is widely distributed in the western United States but has declined in portions of its range. Research directed at conserving Boreal Toads has indicated that their movements are largely terrestrial and often limit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::952872cd42f113d02d7ff4093d1b0bee
https://doi.org/10.1670/07-125r1.1
https://doi.org/10.1670/07-125r1.1
Autor:
Susan B. Adams, David A. Schmetterling
Publikováno v:
Transactions of the American Fisheries Society. 136:1736-1741
Freshwater sculpins (Cottidae) are a diverse and ecologically important component of cool- and coldwater ecosystems throughout the northern hemisphere. More than 60 sculpin species occur in a variety of habitats, and sculpin distributions range from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47d1901cf97c70baa86b37c9726cd2db
https://doi.org/10.1577/t07-023.1
https://doi.org/10.1577/t07-023.1