Browse by Archive
ScholarsArchive at Oregon State University
|
There is an urgent need to clarify how different stocks, or subpopulations of fish species, are vulnerable to fishing pressure and unfavorable ocean conditions because of the increasing demand on fisheries for human consumption. For marine fishes,...
2011-06-29 (iso8601)
|
|
Growth increment widths from hard structures of marine and freshwater fish and bivalve species are increasingly used to model growth and elucidate relationships with environmental variability. Fully characterizing the intrinsic age-related growth...
2012-09-29 (iso8601)
|
|
The Hatfield Marine Science Center (HMSC) is an interagency campus in Newport, Oregon with
a mission of research, education and outreach in marine sciences through collaborative
partnerships. Located on a 49 acre site on Yaquina Bay, Oregon, it is...
2012-02-10 (iso8601)
|
|
Stabilization of the Yaquina Bay shoreline along the northeastern edge of the Hatfield Marine
Science Center (HMSC) campus became necessary to halt erosion that threatened both HMSC
critical infrastructure (seawater storage tank) and public access...
2013-02-10 (iso8601)
|
|
Climate-induced changes may be more substantial within the marine environment, where following ecological change is logistically difficult, and typically expensive. As marine animals tend to produce stereotyped, long-range signals, they are ideal...
2013-01-09 (iso8601)
|
|
Most modeling and statistical approaches encourage simplicity, yet ecological processes are often complex, as they are influenced by numerous dynamic environmental and biological factors. Pacific salmon abundance has been highly variable over the...
2013-01-11 (iso8601)
|
|
A network of autonomous underwater hydrophones is used to monitor acoustic activity associated with Hunga Ha'apai-Hunga Tonga volcano during a period of 15 months. The data provide a continuous record spanning a surtseyan eruption (VEI 2) in March...
2012-08-28 (iso8601)
|
|
Species distribution models (SDMs) are currently being used to identify essential fish habitat and guide
fisheries management worldwide. We present SDMs based on generalized linear mixed models (GLMM) of
the fall distribution or occurrence of...
2011-07-30 (iso8601)
|
|
Polar ecosystems are sensitive to climate forcing, and we often lack baselines to evaluate changes. Here we report a nearly 50-year study in which a sudden shift in the population dynamics of an ecologically important, structure-forming...
2013-02-27 (iso8601)
|
|
A survey of the Brothers caldera volcano (Kermadec arc) with the autonomous underwater vehicle ABE has revealed new details of the morphology and structure of this submarine frontal arc caldera and the geologic setting of its hydrothermal...
2012-12 (iso8601)
|
|
See Article for Abstract.
2013-01-16 (iso8601)
|
|
"The natural production of anadromous fish in many coastal streams has been seriously reduced by pollution, dams, timber harvesting, siltation, and other such forces. Many miles of streams that could be in production are not available to...
1965-03-15 (iso8601)
|
|
To directly determine mortality and predation in the endangered western Steller sea lion Eumetopias jubatus, we deployed implanted, satellite-linked post-mortem data transmitters in 21 juveniles. Data recovered from 4 of 5 detected mortalities...
2009-09-10 (iso8601)
|
|
The dynamic Quaternary geology of the Pacific Ring of Fire created substantial challenges for biogeography. Fish life history and population genetic variation were shaped by climate change, repeated formation and subsidence of ice sheets,...
2013-03 (iso8601)
|
|
Density estimation for marine mammal species is performed primarily using
visual distance sampling or capture-recapture. Minke whales in Hawaiian waters
are very difficult to sight; however, they produce a distinctive “boing” call, making
them...
2013-01 (iso8601)
|
|
conservation and ecology. Currently, the most widely used methods for obtaining such estimates involve either sighting
animals from transect lines or some form of capture-recapture on marked or uniquely identifiable individuals. However,
many...
2013-05 (iso8601)
|
|
Lithothamnion rnuelleri is reported for the first time as one of the main components of rhodolith beds along the Eastern Pacific Ocean based on samples from Washington State (USA), Pacific Baja California (Mexico), southern Nicaragua, and Costa...
2013-03 (iso8601)
|
|
Re-introduction of California condors into Oregon is currently being considered,
but there are concerns about the safety of potential food sources of this species.
Condors are opportunistic feeders and a largely available food source for this...
2013-03-01 (iso8601)
|
|
This report describes how energy is used in at the Hatfield Marine Science Center, and includes recommendations on cost effective steps that could be taken to reduce energy and waste costs. The contents are based on a recent visit to the...
2009-03-16 (iso8601)
|
|
"Indexed herein are references to literature pertaining to the marine waters of Oregon. References to papers, depending on the subject matter contained in the paper, are indexed under one or more of the following headings: Marine Biology, Climate,...
1966-10 (iso8601)
|
|
"The purpose of this report is to present methods and procedures for monitoring estuarine benthic systems. Emphasis is given to those features of benthic systems of significant ecological importance. While the experience of the authors has been...
1975-12 (iso8601)
|
|
The purpose of this memorandum is to provide a preliminary seismic assessment of the
ODFW HMSC Office Building in Newport, OR. This report includes a description of the local
seismic hazard, a description of the building’s lateral force resisting...
2013-06-22 (iso8601)
|
|
"The fish management plan for the North Umpqua River system (below Soda Springs Dam) is designed to promote effective management of the fish resources in that river. It is prepared to inform interested citizens and agencies of management...
1986-03-21 (iso8601)
|
|
Diets of juvenile coho Oncorhynchus kisutch and Chinook O. tshawytscha salmon
are made up primarily of winter-spawning fish taxa in the late-larval and early juvenile stages that
are undersampled in plankton and larger trawl nets. Although we have...
2013-06-12 (iso8601)
|
|
Populations of blue king crab (BKC) (Paralithodes platypus Brandt, 1850) have declined in Alaskan waters
over recent decades, and substantial effort is being made to rehabilitate the once important fishery with releases
of hatchery-reared...
2013-02-28 (iso8601)
|
