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Patterns of color phase indicate spawn timing at a Nassau grouper Epinephelus striatus spawning aggregation

Creator:: Archer, Stephanie K., Heppell, Scott A., Semmens, Brice X., Pattengill-Semmens, Christy V., Bush, Phillippe G., Mccoy, Croy M., and Johnson, Bradley C.
Abstract:: Nassau grouper Epinephelus striatus are a large bodied, top level predator that is ecologically important throughout the Caribbean. Although typically solitary, Nassau grouper form large annual spawning aggregations at predictable times in specific locations. In 2003, The Cayman Islands Marine Conservation Board established protection for a newly rediscovered Nassau grouper...
Resource Type:: Article
Full Text:: *, Scott A HEPPELL1, Brice X SEMMENS2, Christy V PATTENGILL-SEMMENS2, Phillippe G BUSH3, Croy M MCCOY3

Dissolved oxygen requirements of freshwater fishes

Creator:: Doudoroff, Peter and Shumway, Dean L.
Abstract:: This critical review of literature on dissolved oxygen requirements of freshwater fishes is one of a series of papers on water quality criteria, the formulation of which is a prerequisite to the control of water pollution. It was prepared for FAO by the State of Oregon (acting by and through...
Resource Type:: Technical Report
Full Text:: L. Shumway FIRI/T86 Water pollution FOOD AND AGRICULTURE-ORGANIZATION OF THE -UNITED NATIONS ROME

Meta-analysis of avian and small-mammal response to fire severity and fire surrogate treatments in U.S. fire-prone forests

Creator:: Fontaine, Joseph B. and Kennedy, Patricia L.
Abstract:: Management in fire-prone ecosystems relies widely upon application of prescribed fire and/or fire surrogate (e.g., forest thinning) treatments to maintain biodiversity and ecosystem function. Recently, published literature examining wildlife response to fire and fire management has increased rapidly. However, none of this literature has been synthesized quantitatively, precluding assessment of...
Resource Type:: Article
Full Text:: AND PATRICIA L. KENNEDY2 1School of Environmental Science, Murdoch University, 90 South St., Perth

Impact of land use patterns and agricultural practices on water quality in the Calapooia River Basin of western Oregon

Creator:: Mueller-Warrant, G. W., Griffith, S. M., Whittaker, G. W., Banowetz, G. M., Pfender, W. F., Garcia, T. S., and Giannico, G. R.
Abstract:: Agricultural practices, including tillage, fertilization, and residue management, can affect surface runoff, soil erosion, and nutrient cycling. These processes, in turn, may adversely affect (1) quality of aquatic resources as habitat for amphibians, fish, and invertebrates, (2) costs of treating surface and ground water to meet drinking water standards, and...
Resource Type:: Article
Full Text:: % agriculture. Average slopes varied from 1.3% to 18.9%, and surface water quality ranged from 0.5 to 43 mg L–1

Can humans coexist with fishes?

Creator:: Albins, Mark A., Evans, Allison, Ismail, Gladys, Neilsen, Brian, Pusack, Timothy, Schemmel, Eva, Smith, Wade, Stoike, Susanne, Li, Hiram W., and Noakes, David L. G.
Abstract:: Deciding which textbook to assign to students is often a very difficult decision. A textbook should offer more than just a synthesis of information, it should inspire curiosity, cause one to reflect, and provide a framework for making decisions. Most reviews reflect a single opinion, sometimes based on personal preferences....
Resource Type:: Article
Full Text:: suckers, Deltistes luxatus). It is estimated that construction of the Sprague River dam in the Klamath

Gravel disturbance impacts on salmon habitat and stream health : volume II : technical background report

Creator:: Williamson, Kenneth J., Bella, David A., Beschta, Robert L., Grant, Gordon, Klingeman, Peter C., Li, Hiram W., Nelson, Peter O., Castillo, Gonzalo, Lorz, Tom, Meleason, Mark, Minear, Paula, Moret, Stephanie, Nam, Ilgi, Reiter, Maryanne, and Wieland, Lisa
Abstract:: A report for the Oregon Division of State Lands.
Resource Type:: Technical Report
Full Text:: , Oregon Water Resources Research Institute David A. Bella, Professor, Civil Engineering, OSU Robert L

Patterns in Catch Per Unit Effort of Native Prey Fish and Alien Piscivorous Fish in 7 Pacific Northwest USA Rivers

Creator:: Hughes, Robert M. and Herlihy, Alan T.
Abstract:: OBJECTIVE. Hospital readmissions are a current target of initiatives to reduce healthcare costs. This study quantified the association between having a clinical culture positive for 1 of 3 prevalent hospital-associated organisms and time to hospital readmission. DESIGN. Retrospective cohort study. PATIENTS AND SETTING. Adults admitted to an academic, tertiary care...
Resource Type:: Article
Full Text:: ; O = Okanogan; S = Sprague; U = Umpqua; W = Willamette. aAdult Acrocheilus, Gila

Non-wadeable river bioassessment: spatial variation of benthic diatom assemblages in Pacific Northwest rivers, USA

Creator:: Pan, Yangdong, Hughes, Robert M., Herlihy, Alan T., and Kaufmann, Philip R.
Abstract:: Current bioassessment efforts are focused on small wadeable streams, at least partly because assessing ecological conditions in non-wadeable large rivers poses many additional challenges. In this study, we sampled 20 sites in each of seven large rivers in the Pacific Northwest, USA, to characterize variation of benthic diatom assemblages among...
Resource Type:: Article
Full Text:: peaks of their head- waters can have 5–20 m snow caps. The John Day, Malheur, Okanogan, and Sprague

Estimating vertebrate, benthic macroinvertebrate, and diatom taxa richness in raftable Pacific Northwest rivers for bioassessment purposes

Creator:: Hughes, Robert M., Herlihy, Alan T., Gerth, William J., and Pan, Yangdong
Abstract:: The number of sites sampled must be considered when determining the effort necessary for adequately assessing taxa richness in an ecosystem for bioassessment purposes; however, there have been few studies concerning the number of sites necessary for bioassessment of large rivers. We evaluated the effect of sample size (i.e., number...
Resource Type:: Article
Full Text:: Umpqua Sprague Malheur John Day Okanogan Mean width (m) 47.7 126.2 84.5 30.9 27.8 51.3 79.5 29–65 88

AFS Position Paper and Policy on Mining and Fossil Fuel Extraction

Creator:: Hughes, Robert M., Amezcua, Felipe, Chambers, David M., Daniel, Wesley M., Franks, James S., Franzin, William, MacDonald, Donald, Merriam, Eric, Neall, George, dos Santos Pompeu, Paulo, Reynolds, Lou, and Woody, Carol Ann
Abstract:: Following a four-year period of writing, member comment, and multiple revisions, the AFS Position Paper and Policy on Mining and Fossil Fuel Extraction was approved unanimously by the membership at the Society's annual business meeting August 19, 2015, in Portland, Oregon. The entire document can be read at fisheries.org/policy_statements; a...
Resource Type:: Article
Full Text:: . 2012); alter salmonid migratory behavior (Sprague et al. 1965; Lorz and McPherson 1976); increase

ScholarsArchive@OSU

Patterns of color phase indicate spawn timing at a Nassau grouper Epinephelus striatus spawning aggregation

Dissolved oxygen requirements of freshwater fishes

Meta-analysis of avian and small-mammal response to fire severity and fire surrogate treatments in U.S. fire-prone forests

Impact of land use patterns and agricultural practices on water quality in the Calapooia River Basin of western Oregon

Can humans coexist with fishes?

Gravel disturbance impacts on salmon habitat and stream health : volume II : technical background report

Patterns in Catch Per Unit Effort of Native Prey Fish and Alien Piscivorous Fish in 7 Pacific Northwest USA Rivers

Non-wadeable river bioassessment: spatial variation of benthic diatom assemblages in Pacific Northwest rivers, USA

Estimating vertebrate, benthic macroinvertebrate, and diatom taxa richness in raftable Pacific Northwest rivers for bioassessment purposes

AFS Position Paper and Policy on Mining and Fossil Fuel Extraction

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