Filters: Tags: coho salmon (X)67 results (130ms)
Ecological effects of invasive European bird cherry (Prunus padus) on salmonid food webs in Anchorage, Alaska streams
Invasive species are a concern worldwide as they can displace native species, reduce biodiversity, and disrupt ecological processes. European bird cherry (Prunus padus) (EBC) is an invasive ornamental tree that is rapidly spreading and possibly displacing native trees along streams in parts of urban Alaska. The objectives of this study were to: 1) map the current distribution of EBC along two Anchorage streams, Campbell and Chester creeks, and 2) determine the effects of EBC on selected ecological processes linked to stream salmon food webs. Data from the 2009 and 2010 field seasons showed: EBC was widely distributed along Campbell and Chester creeks; EBC leaf litter in streams broke down rapidly and supported similar...
Spatial and temporal factors affecting survival in coho salmon (Oncorhynchus kisutch) in the Pacific Northwest
Study of the lethal and sublethal toxicity of polyphase P-100, an antisapstain fungicide containing 3-iodo-2-propynyl butyl carbamate (IPBC), on fish and aquatic invertebrates
The geographic distribution of stream reaches with potential to support high quality habitat for salmonids has bearing on the actual status of habitats and populations over broad spatial extents. As part of the Coastal Landscape Analysis and Modeling Study (CLAMS), we examined how salmon-habitat potential was distributed relative to current and future (+100 years) landscape characteristics in the Coastal Province of Oregon, USA. The intrinsic potential to provide high-quality rearing habitat was modeled for juvenile coho salmon (Oncorhynchus kisutch) and juvenile steelhead (O. mykiss) based on stream flow, valley constraint, and stream gradient. See Supplemental Information for additional detail.<br /><br />BLM:...
Report is divided into two sections. In Section I, an introductory overview of the Northern Cook Inlet Management Area is presented, including: a general geographic and organizational description of the management area; an inventory of the available fishery resources; an overview of the Alaska Board of Fisheries processes; existing management plans; a historical perspective of recreational angler effort, catch and harvest; and an approximation of the economic value of the recreational fisheries. A general description of research, management and educational activities, ongoing access programs, and a summary of the current major biological and social issues in the management area are also presented. In Section II,...
Developmental Toxicity of Polyhalogenated Aromatic Hydrocarbons in Rainbow Trout and Ring-necked Pheasant
The geographic distribution of stream reaches with potential to support high quality habitat for salmonids has bearing on the actual status of habitats and populations over broad spatial extents. As part of the Coastal Landscape Analysis and Modeling Study (CLAMS), we examined how salmon-habitat potential was distributed relative to current and future (+100 years) landscape characteristics in the Coastal Province of Oregon, USA. The intrinsic potential to provide high-quality rearing habitat was modeled for juvenile coho salmon (Oncorhynchus kisutch) and juvenile steelhead (O. mykiss) based on stream flow, valley constraint, and stream gradient. See Supplemental Information for additional detail. BLM (Bureau of...
An Economic Assessment of the Sport Fisheries for Halibut, and Chinook and Coho Salmon in Lower and Central Cook Inlet
The Cook Inlet Planning Area includes and abuts productive commercial, subsistence, and sport fishing grounds. Outer continental shelf minerals exploration, development and production activities could affect the productivity of these fisheries, the quality of recreation opportunities, and the demand for tourism-related services. The marine sport fisheries of lower and central Cook Inlet are the focus of a large recreation based economic sector that provides non-monetary benefits to participants and monetary benefits to tourism-related businesses. This study and a companion study, Lee et al. [1999b], develop a predictive model of participation rate changes that can be linked to a regional inputoutput model to estimate...
Land management practices and endangered species in the watershed. Are they compatible? A case history
Error Identification Approach to Forecasting the Harvest Rate of One Species in a Multispecies Fishery, Illustrated with Two Salmon Fisheries
Final distribution and status map for the aquatic fine filter Coho Salmon. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. These data may not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential users of the data may contemplate. The User is encouraged to carefully consider the content of the metadata file associated with these data. The BLM should be cited as the data source in any products derived from these data.
Comparison of Site Fidelity and Growth Rates of Juvenile Salmon between two Stream Types - A Pilot Study
A pilot study was conducted to evaluate the use of PIT tags and underwater antennas to measure juvenile salmon growth rates and site fidelity. Juvenile coho (Oncorhynchus kisutch) and Chinook salmon (Oncorhynchus tshawytsha) growth rates and site fidelity were compared between two streams within the Susitna River drainage in Southcentral Alaska. The two study streams were selected to represent a low-sloped wetland stream which is common on the west side of the drainage and a moderate sloped upland stream that drains the Talkeetna mountains which is common on the east side of the drainage. Comparisons of growth rates and site fidelity within these two streams were used to test for the differences in the habitat quality...
Discriminating coho salmon (Oncorhynchus kisutch) populations within the Fraser River, British Columbia, using microsatellite DNA markers
Biochemical effects of didecyldimethylammonium chloride (DDAC) exposure and osmoregulatory stress on juvenile coho salmon, Oncorhynchus kisutch
Population viability of coho salmon, Oncorhynchus kisutch, in Oregon coastal basins: application of a habitat-based life cycle model