Výsledky vyhledávání - "Jason L. Vogel"

Evaluating the Accuracy and Precision of Multiple Abundance Estimators Using State-Space Models: A Case Study for a Threatened Population of Chinook Salmon in Johnson Creek, Idaho

Autor: Jason L. Vogel, Ryan Kinzer, Craig D. Rabe, Rick Orme, Brandon E. Chasco, Eric J. Ward, Jay A. Hesse

Publikováno v: North American Journal of Fisheries Management. 34:945-954

Over the last century, Chinook Salmon Oncorhynchus tshawytscha populations in the Pacific Northwest have experienced dramatic declines, leading to many of them being listed as threatened under the Endangered Species Act. The abundance of these threat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f84bc9fb965f8c3351ee9501a21d954a
https://doi.org/10.1080/02755947.2014.926302

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Influences of Hatchery Supplementation, Spawner Distribution, and Habitat on Genetic Structure of Chinook Salmon in the South Fork Salmon River, Idaho

Autor: Andrew P. Matala, Jason L. Vogel, Shawn R. Narum, William C. Young

Publikováno v: North American Journal of Fisheries Management. 32:346-359

We evaluated the genetic influence of hatchery supplementation on distinct naturally spawning populations of Chinook salmon Oncorhynchus tshawytscha in the South Fork Salmon River (SFSR), Idaho. Genetic tissue samples were collected from unmarked nat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::51142d93fb458df8eec7c386cf5fe605
https://doi.org/10.1080/02755947.2012.678961

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Estimating diel, depth-specific foraging opportunities with a visual encounter rate model for pelagic piscivores

Autor: Casey M. Baldwin, David A. Beauchamp, Chad P. Gubala, Jason L. Vogel

Publikováno v: Canadian Journal of Fisheries and Aquatic Sciences. 56:128-139

We developed a visual foraging model for piscivores that predicts search volume as a function of light and turbidity. We combined this model with diel hydroacoustic measurements of depth-specific prey fish densities during summer stratification in La

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0ada8638f61f9f2cc8e1cee5216f3a25
https://doi.org/10.1139/f99-217

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Effects of light, prey size, and turbidity on reaction distances of lake trout (Salvelinus namaycush) to salmonid prey

Autor: David A. Beauchamp, Jason L. Vogel

Publikováno v: Canadian Journal of Fisheries and Aquatic Sciences. 56:1293-1297

Most studies on visual foraging by fish have focused on reaction distances to invertebrate prey; however, these acuity-based results considerably overestimate reaction distances of piscivores to prey fish. In laboratory experiments, we quantified rea

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a55daa56e83d5bf703d39e2d8b696162
https://doi.org/10.1139/f99-071

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Supportive breeding boosts natural population abundance with minimal negative impacts on fitness of a wild population of Chinook salmon

Autor: Jason L. Vogel, Craig D. Rabe, Doug D. Nelson, Shawn R. Narum, Jeff J. Stephenson, Maureen A. Hess

Publikováno v: Molecular Ecology

While supportive breeding programmes strive to minimize negative genetic impacts to populations, case studies have found evidence for reduced fitness of artificially produced individuals when they reproduce in the wild. Pedigrees of two complete gene

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f330b7500e85cb0f88d7f3b4b44fbef
https://pubmed.ncbi.nlm.nih.gov/23025818

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