Results 61 to 70 of about 965 (180)
Contemporary Methods for Capturing Juvenile Salmonids in the Marine Environment
ABSTRACT Anadromous salmonids play vital roles in marine and freshwater ecosystems. The most abundant of these fishes—Pacific salmon (Oncorhynchus spp.)—are integral to coastal ecosystems and communities across the North Pacific Rim, but numerous populations are experiencing dramatic declines, particularly towards the south of their range.
Sean C. Godwin +6 more
wiley +1 more source
Steelhead trout (Oncorhynchus mykiss) historically occurred in all major watersheds along the west coast of the United States. They can be a vital part of a healthy riverine ecosystem, are highly valued for fishing, and have been greatly affected by ...
Mariah H. Meek +4 more
doaj
Persistence of infectious hematopoietic necrosis virus (IHNV) in steelhead trout
The existence of a carrier state for infectious hematopoietic necrosis virus (IHNV) has been debated for many years with some studies observing long-term persistence in salmonid hosts and other studies demonstrating rapid viral clearance below detectable levels.
Purcell, Maureen K +2 more
openaire +2 more sources
A Conceptual Framework and Methods for Studying the Connectivity of Fishes
ABSTRACT Connectivity is a multifaceted concept that has important implications for the management and conservation of marine and freshwater fishes. We developed a conceptual framework that encompasses multiple, interrelated categories of connectedness, including landscape (e.g., structural, functional) connectivity and ecological (e.g., trophic ...
Jordanna N. Bergman +18 more
wiley +1 more source
Numerous self-sustaining naturalized or introduced populations of rainbow trout (Oncorhynchus mykiss) are widely distributed throughout the freshwaters of southern Chile.
Nelson Colihueque +8 more
doaj +1 more source
Salmon watershed archetypes: A clustering of cumulative pressures and climate change
Cumulative effects of land‐use change and climate change are leading to biodiversity decline globally. Spatial analyses of cumulative pressures that distill complexity and provide actionable information for the management of cumulative pressures on vulnerable species are needed.
Spencer Dakin Kuiper +5 more
wiley +1 more source
ABSTRACT Fish passage development is a priority at Tieton Dam, on the Tieton River in Washington state, because passage options were not included when the dam was constructed nearly 100 years ago. To inform downstream passage design, we conducted a study to evaluate migration and near‐dam behavior of juvenile salmon.
Tobias J. Kock +3 more
wiley +1 more source
Global Warming Affects the Pathogenesis of Important Fish Diseases in European Aquaculture
The effect of global warming on pathogens and their fish hosts that could exacerbate the negative outcomes for aquaculture. Changes in farming practices and the development of innovative mitigation tools may prove essential to cope with the effects and impacts of rising water temperatures on fish diseases in Europe.
George Rigos +7 more
wiley +1 more source
Faunal assemblages and multi-scale habitat patterns in headwater tributaries of the South Fork Trinity River – an unregulated river embedded within a multiple-use landscape [PDF]
Headwaters can represent 80% of stream kilometers in a watershed, and they also have unique physical and biological properties that have only recently been recognized for their importance in sustaining healthy functioning stream networks and their ...
Welsh, H. H., Jr., +3 more
doaj
Fish migrations are energetically costly, especially when moving between freshwater and saltwater, but are a viable strategy for Pacific salmon and trout (Oncorhynchus spp.) due to the advantageous resources available at various life stages.
Erin E. Collins +3 more
doaj +1 more source

