Index Catalog // ScholarsArchive@OSU

Patterns of loggerhead turtle ontogenetic shifts revealed through isotopic analysis of annual skeletal growth increments

Creator:: Ramirez, Matthew D., Avens, Larisa, Seminoff, Jeffrey A., Goshe, Lisa R., and Heppell, Selina S.
Abstract:: Ontogenetic changes in resource use often delimit transitions between life stages. Ecological and individual factors can cause variation in the timing and consistency of these transitions, ultimately affecting community and population dynamics through changes in growth and survival. Therefore, it is important to document and understand behavioral and life history...
Resource Type:: Article
Full Text:: , La Jolla, California 92037 USA Citation: Ramirez, M. D., L. Avens, J. A. Seminoff, L. R. Goshe, and

Nesting season ecology of marbled murrelets at a remote mainland fjord in southeast Alaska

Creator:: Barbaree, Blake A.
Abstract:: This thesis focuses on the nesting ecology and marine space use of Marbled Murrelets (Brachyramphus marmoratus) during the 2007 and 2008 nesting seasons in and around Port Snettisham, a remote mainland fjord in Southeast Alaska. Marbled Murrelets (murrelets) are a declining species throughout most of their range, and their conservation...
Resource Type:: Masters Thesis
Full Text:: . Swartzman, V. Friesen, D. Ainley, R. Tressler, K. Nelson, A. Burger, L. Spear, T. Mohagen, R. Martin, L

Variation in the energy density of forage fishes and invertebrates from the southeastern Bering Sea

Creator:: Whitman, Luke D.
Abstract:: The quality and availability of forage fishes and invertebrates can affect the behavior and productivity of predators that rely on these resources. This study measures the proximate composition of forage fishes and invertebrates from the southeastern Bering Sea to estimate prey energy density (quality) using a method that is ecologically...
Resource Type:: Masters Thesis
Full Text:: by Luke D. Whitman A THESIS submitted to Oregon State University In partial

Patterns of distribution, abundance, and change over time in the marine bird community of Prince William Sound, Alaska, 1989-2012

Creator:: Cushing, Daniel A.
Abstract:: Over recent decades, the marine ecosystems of Prince William Sound (PWS), Alaska have experienced the concurrent effects of a major anthropogenic disturbance, the 1989 Exxon Valdez oil spill (EVOS), and a dynamic atmospheric-oceanic environment. Studies of top marine consumers can provide insights into processes of ecosystem change. Using data collected...
Resource Type:: Masters Thesis
Full Text:: the biological resources of PWS. 6 LITERATURE CITED Agler, B. A., S. J. Kendall, D

Description and analysis of dietary preference of lingcod in the nearshore zone, Oregon

Creator:: Tinus, Craig A.
Abstract:: The lingcod (Ophiodon elongatus) is an important groundfish species in both recreational and commercial fisheries of the Northeastern Pacific. It is a large, fast-growing, generalist predator of invertebrates and fishes. In response to concerns that lingcod may limit populations of rockfishes (Sebastes spp.), I compared the diets of 375 adult...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Craig A

Prey availability overrides cover in determining growth and abundance of stream-dwelling cutthroat trout

Creator:: Wilzbach, Margaret A.
Abstract:: The abundance and biomass of cutthroat trout (Salmo clarki) have been found to be greater in logged than in forested streams of the Oregon Cascades. Although certain prey taxa increase in abundance following logging, habitat stability generally decreases and cover structures are removed. Research was conducted to examine the manner...
Resource Type:: Dissertation
Full Text:: STREAM by Margaret A. Wilzbach and James D. Hall Department of Fisheries and Wildlife Oregon State

Extrinsic and Intrinsic Factors Associated with Reproductive Success of Caspian Terns (Hydroprogne caspia) at East Sand Island, Columbia River Estuary

Creator:: Bailey, Olivia A.
Abstract:: Declines in wild salmonid (Oncorhynchus spp.) populations in the Columbia River basin have resulted in managers identifying that avian predation on juvenile salmonids is an important limiting factor for salmonid recovery. Caspian Terns (Hydroprogne caspia), particularly those nesting in the Columbia River estuary, were identified as key avian predators that...
Resource Type:: Masters Thesis
Full Text:: . Collis, K., D. D. Roby, D. P. Craig, B. A. Ryan, R. D. Ledgerwood. 2001. Colonial waterbird predation on

Social interaction between juvenile coho and fall chinook salmon in Sixes River, Oregon

Creator:: Stein, Roy A.
Abstract:: The nature of the interaction between juvenile coho salmon, Oncorhynchus kisutch (Walbaum), and fall chinook salmon, 0. tshawytscha (Walbaum), was studied in Sixes River, Oregon. Seining, snorkeling, and tagging were used to determine distribution and patterns of growth of these two species in the stream environment. Experiments conducted in flowing-water...
Resource Type:: Masters Thesis
Full Text:: . Thanks are due Dr. John D. McIntyre and Dr. John A. Weins who reviewed the manuscript. Deepest

Young-of-the-year rockfish (Sebastes spp.) settlement dynamics in Oregon estuaries

Creator:: Dauble, Alison D.
Abstract:: In the Pacific Northwest, several species of rockfishes (Sebastes spp.) are under extreme conservation measures due to low population levels. Although currently at healthy population levels, one species of interest is the black rockfish (S. melanops), which has been shown to utilize estuarine habitat during its early life history stages....
Resource Type:: Masters Thesis
Full Text:: # :1@L9/0<#6;/./T8#O6.;/A.8#80;65:/80#12# ;<8#):8>12# @150;# 9:1O# 0A:/2># ;<:16><# .5;8# 95..D# 52

Function of Oregon Estuaries to Juvenile Fishes, with Focus on Juvenile Rockfishes (Sebastes spp.) in Yaquina Bay, Oregon

Creator:: Schwartzkopf, Brittany D.
Abstract:: The role that anthropogenic and natural habitats in estuaries play in long-term population trends for Oregon’s nearshore marine fishes is poorly understood, in part due to limited temporal sampling. One important nearshore marine group is northeastern Pacific rockfishes (Sebastes spp.), which are highly diverse, with around 96 documented species, and...
Resource Type:: Dissertation
Full Text:: Rockfishes (Sebastes spp.) in Yaquina Bay, Oregon by Brittany D. Schwartzkopf A

ScholarsArchive@OSU

Patterns of loggerhead turtle ontogenetic shifts revealed through isotopic analysis of annual skeletal growth increments

Nesting season ecology of marbled murrelets at a remote mainland fjord in southeast Alaska

Variation in the energy density of forage fishes and invertebrates from the southeastern Bering Sea

Patterns of distribution, abundance, and change over time in the marine bird community of Prince William Sound, Alaska, 1989-2012

Description and analysis of dietary preference of lingcod in the nearshore zone, Oregon

Prey availability overrides cover in determining growth and abundance of stream-dwelling cutthroat trout

Extrinsic and Intrinsic Factors Associated with Reproductive Success of Caspian Terns (Hydroprogne caspia) at East Sand Island, Columbia River Estuary

Social interaction between juvenile coho and fall chinook salmon in Sixes River, Oregon

Young-of-the-year rockfish (Sebastes spp.) settlement dynamics in Oregon estuaries

Function of Oregon Estuaries to Juvenile Fishes, with Focus on Juvenile Rockfishes (Sebastes spp.) in Yaquina Bay, Oregon

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