Browsing Fisheries by Title
Now showing items 117-136 of 152
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Resource use and life history patterns of juvenile Coho and Chinook salmon in an Alaskan estuary
Estuaries are valuable nursery grounds for anadromous Pacific salmon supplying diverse habitats, quality foraging grounds, and a transition between freshwater and saltwater environments. By providing alternative rearing ... -
Response of Olympia oysters (Ostrea lurida) to changing environmental conditions
The Olympia oyster is an iconic oyster species in the Pacific Northwest with special significance in Puget Sound, WA. Oyster populations in the region were decimated to historic lows during the 20th century due to a number ... -
Responses of fishes and salamanders to instream restoration efforts in western Oregon and Washington
(2000)Thirty streams in western Oregon and Washington were sampled during summer and winter to determine the responses of juvenile salmonids, juvenile lamprey (Entosphenus tridentatus and Lampetra spp.), sculpin (Cottus spp.) ... -
Sablefish (Anoplopoma fimbria) sperm: The physiology of activation and the development of a cryopreservation protocol
(2014-04-30)Sablefish (Anoplopoma fimbria) is a deep-water marine species in the Pacific Ocean with high commercial value. Limited information is available about male reproductive development and sperm physiology in sablefish or how ... -
The Salmon River estuary: restoring tidal inundation and tracking ecosystem response
(2005)The Salmon River estuary offered a unique opportunity to simultaneously evaluate several estuarine restoration projects and make comparisons with a reference, undiked portion of the estuary. Dikes installed in three locations ... -
Salmonid Selection, Evolution, and Historical Abundance Patterns
Pacific salmon represent an important group of species both from both cultural and economic perspectives. Given the importance of salmonids in marine and freshwater ecosystems, as a component of human food security, it is ... -
Scientific Acoustic Data from Commercial Fishing Vessels: Eastern Bering Sea Walleye Pollock (Theragra chalcogramma)
(University of Washington Graduate School, 2012-01)Although the International Council on the Exploration of the Sea Working Group on Fisheries Acoustics, Science and Technology provided guidance on using commercial fishing vessels for collecting opportunistic acoustic ... -
Selection and Adaptation of Fitness-related traits in Coho Salmon
Selection is the primary force driving phenotypic differentiation and adaptive evolution, and understanding how and to what extent selection drives adaptive evolution remains a key challenge in evolutionary biology. A ... -
Sex steroid feedback regulation of pituitary gonadotropins during early secondary oocyte growth in coho salmon (Oncorhynchus kisutch) – a potential target of endocrine disruption.
In teleost fish as in other vertebrate species, the pituitary gonadotropins, follicle-stimulating hormone (Fsh) and luteinizing hormone (Lh), are fundamentally involved in regulating physiological processes critical to the ... -
Shoreline armoring disrupts marine-terrestrial connectivity across the nearshore ecotone
(2014-02-24)As the interface between land and sea, the nearshore (marine-terrestrial) ecotone converges at the intertidal zone, where the exchange of organic materials between ecosystems occurs in the form of beach wrack: piles of ... -
Size-selective mortality and environmental factors affecting early marine growth during early marine life stages of sub-yearling Chinook salmon in Puget Sound, Washington
Body size, mediated through biotic and abiotic factors affecting growth, is fundamental in determining survival as larger animals are usually less vulnerable to predation, starvation, and extreme environmental conditions ... -
Spatial and temporal patterns of fertilization in black abalone (Haliotis cracherodii Leach, 1814): Analysis of surrogate gamete spawning experiments with application towards populations on San Nicolas Island, California
(2013-11-14)The endangered black abalone (Haliotis cracherodii) suffered devastating losses along the coasts of Southern California, primarily caused by the effects of withering syndrome. Subsequent recovery may be hindered by the ... -
The spatial dimensions of fisheries: improved use of spatial information into fisheries management and information for assessments
Until relatively recently, fisheries resources were managed as single homogeneous units and fisheries management conveniently ignored the presence of spatial heterogeneity in stocks. In nature, species are neither distributed ... -
Spatial modelling for monitoring and management of marine metapopulations
(2012-09-13)Accounting for spatial complexity provides a diversity of challenges for natural resource management. Challenges arise from uncertainties in spatial stock structure, heterogeneity in environmental and ecological constraints, ... -
Spatial variability of coral reef communities: implications for conservation of benthic and herbivorous fish communities across Hawaii
Over the last two decades there has been a proliferation of reports documenting the decline of coral reef systems across the globe (Gardner et al. 2003, Bellwood et al. 2004, Cote et al. 2005, Bruno and Selig 2007). In ... -
Species diversity and environmental variability: patterns and processes of lacustrine fish community responses in a variable world
Ecosystems are heterogeneous on multiple scales of space and time, and this variation in abiotic and biotic features confronts organisms with complex challenges. Climate change signals are also often heterogeneous across ... -
Stage-structured analysis and modeling of the Pacific razor clam (Siliqua patula) in a changing environment: investigation of population dynamics and harvest strategies using process models and simulation
(1996)The Pacific Razor Clam (Siliqua patula) populations along the Washington coast have experienced massive fluctuations in abundance since the 1950s. Since the 1980s, it has been hypothesized that some of the declines in ... -
Substrate associated recruitment of juvenile Sebastes in artificial reef and natural habitats in Puget Sound and the San Juan Archipelago, Washington
(1997)Habitat pathways and temporal and spatial parameters of substrate associated recruitment have never been reported for juvenile quillback rockfish (S. maliger) in any ecosystem, and have never been described for juvenile ...