Výsledky vyhledávání - "Douglas E. Olson"

Adult Recovery of Hatchery Spring Chinook Salmon Adipose Fin-Clipped and Coded-Wire-Tagged Using an Automated and Manual Marking Trailer

Autor: William R. Brignon, David M. Hand, Douglas E. Olson

Publikováno v: North American Journal of Aquaculture. 76:364-368

Marking and tagging fish is a critical component of many hatchery monitoring and evaluation programs, and coded wire tags are part of the foundation for managing Pacific salmon Oncorhynchus spp. Fin-clipping and coded-wire-tagging large numbers of ju

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8e582527f51ce639c5602e5188ec537d
https://doi.org/10.1080/15222055.2014.920753

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The Effects of Rearing Density on Growth, Fin Erosion, Survival, and Migration Behavior of Hatchery Winter Steelhead

Autor: Douglas E. Olson, Maureen Kavanagh

Publikováno v: North American Journal of Aquaculture. 76:323-332

Juvenile winter steelhead Oncorhynchus mykiss at Eagle Creek National Fish Hatchery in Estacada, Oregon, were reared for three brood years (2004–2006) at raceway densities of 7,500 (214 fish/m3), 15,000 (429 fish/m3), and 22,500 fish (643 fish/m3)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a620acef67d4549c339bb6f1fb101430
https://doi.org/10.1080/15222055.2014.920747

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An Evaluation of Rearing Densities to Improve Growth and Survival of Hatchery Spring Chinook Salmon

Autor: Michael L. Paiya, Douglas E. Olson

Publikováno v: Journal of Fish and Wildlife Management. 4:114-123

We evaluated growth and survival of spring Chinook salmon Oncorhynchus tshawytscha reared at varying densities at Warm Springs National Fish Hatchery, Oregon. For three consecutive brood years, density treatments consisted of low, medium, and high gr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d35a69cdf0cfdde7a4651711a8ace827
https://doi.org/10.3996/042010-jfwm-009

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Factors influencing density, distribution, and mesohabitat selection of juvenile wild salmonids and residual hatchery winter steelhead

Autor: William R. Brignon, Carl B. Schreck, Douglas E. Olson, Howard A. Schaller

Publikováno v: Aquaculture. :137-147

To best manage Eagle Creek National Fish Hatchery, negative interactions between hatchery salmonids and Endangered Species Act listed wild salmonids in the Eagle Creek Basin need to be minimized. Our objectives were: 1) to compare summer rearing dens

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dbdb5ccfd7e1bd868ecd3d9166f7034f
https://doi.org/10.1016/j.aquaculture.2011.04.040

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Baffled and Standard Raceways: A Comparison of Juvenile Spring Chinook Salmon Performance and Smolt-to-Adult Survival

Autor: Mary H. Peters, Susan K. Gutenberger, William R. Brignon, Douglas E. Olson

Publikováno v: North American Journal of Aquaculture. 74:314-319

We compared on-station mortality, growth (mm), feed conversion, health parameters, and smolt-to-adult survival rate of spring Chinook salmon Oncorhynchus tshawytscha reared in baffled and standard (unbaffled) raceways. Fish reared in baffled raceways

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6d052e142ada6ccd5b607b905a7f6f0d
https://doi.org/10.1080/15222055.2012.676010

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Snorkelers' In-Water Observations Can Alter Salmonid Behavior

Autor: Douglas E. Olson, William R. Brignon, Carl B. Schreck, M. Brian Davis, Howard A. Schaller

Publikováno v: Journal of Fish and Wildlife Management. 2:90-98

Direct underwater observation techniques (e.g., snorkel surveys) are widely used in fisheries science. Data collected from these surveys are used to estimate species abundance, detect presence and absence, and construct statistical models that predic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::965c4724ca731d2bd73aa784a1f7d701
https://doi.org/10.3996/052010-jfwm-012

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Comparing Two Methods Used to Mark Juvenile Chinook Salmon: Automated and Manual Marking

Autor: William R. Brignon, Douglas E. Olson, Jesse Rivera, David M. Hand

Publikováno v: North American Journal of Aquaculture. 72:10-17

Hatcheries in the U.S. Pacific Northwest are increasingly implementing programs that use an adipose fin clip and coded wire tag to mark a large number of juvenile salmonids Oncorhynchus spp. Traditionally, fin-clipping and tagging were done by hand,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ab16c37fabbfb8c224662bae23153dab
https://doi.org/10.1577/a08-065.1

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Use of Parentage Analysis to Determine Reproductive Success of Hatchery-Origin Spring Chinook Salmon Outplanted into Shitike Creek, Oregon

Autor: Robert Spateholts, Douglas E. Olson, Geoff FitzGerald, David M. Hand, William R. Ardren, Jason Baumsteiger

Publikováno v: North American Journal of Fisheries Management. 28:1472-1485

Removal of fish passage barriers provides Pacific salmon Oncorhynchus spp. and steelhead O. mykiss the opportunity to recolonize previously accessible habitat, though the time scale of natural recolonization may not be sufficient for management or co

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e16dbddeccc2f87de0dbb6bf10cada61
https://doi.org/10.1577/m07-195.1

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{BLR 1068} Symposium on Moore v. Regents of the University of California

Autor: Berry M. Chandler, Douglas E. Olson

Publikováno v: Biotechnology Law Report. 9:257-261

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3a9501f4fa339ff31526551c9df97063
https://doi.org/10.1089/blr.1990.9.257

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