Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Anthropology (1)
- Behavior and Ethology (1)
- Biodiversity (1)
- Biology (1)
- Climate (1)
-
- Ecology and Evolutionary Biology (1)
- Environmental Health and Protection (1)
- Environmental Indicators and Impact Assessment (1)
- Environmental Sciences (1)
- Environmental Studies (1)
- Geography (1)
- Laboratory and Basic Science Research (1)
- Marine Biology (1)
- Oceanography and Atmospheric Sciences and Meteorology (1)
- Physical Sciences and Mathematics (1)
- Physical and Environmental Geography (1)
- Social and Behavioral Sciences (1)
- Social and Cultural Anthropology (1)
- Terrestrial and Aquatic Ecology (1)
Articles 1 - 3 of 3
Full-Text Articles in Aquaculture and Fisheries
Behavioral Response Of Pacific Lamprey (Entosphenus Tridentatus) To Predator Odors, Laurie L. Porter
Behavioral Response Of Pacific Lamprey (Entosphenus Tridentatus) To Predator Odors, Laurie L. Porter
All Master's Theses
Pacific lamprey (Entosphenus tridentatus), a species facing serious threats to their existence, experience a number of challenges in reaching their desired spawning grounds during the adult migratory phase, and predators are suspected to be one of these challenges. Understanding if Pacific lamprey respond to predator odorants may provide a management tool for use in conjunction with attractants in guiding lamprey to suitable spawning habitat and deterring them from poor habitat. Previous research has failed to explore Pacific lamprey response to predator odorants, although much research exists on attractant odorants. In our study, we tested Pacific lamprey response to …
Passage Route Survival And Behavior Of Juvenile Salmon At Priest Rapids Dam, Columbia River, Wa, Kyle B. Hatch
Passage Route Survival And Behavior Of Juvenile Salmon At Priest Rapids Dam, Columbia River, Wa, Kyle B. Hatch
All Master's Theses
Columbia River hydropower is an economic mainstay of the Pacific Northwest. However, it is well known that the construction of hydropower dams has added anthropogenic pressure to Columbia River salmon populations. Juvenile salmon that pass through powerhouse turbines at large hydropower dams display higher mortality rates than salmon passing through alternative routes; thus at Priest Rapids Dam, a top-spill fish bypass was constructed as a safer alternate downstream passage. To investigate the efficacy of this new passage structure, an acoustic telemetry study was conducted in the spring of 2014 to determine the ability of the bypass to collect and safely …
Fluctuations In Chinook Salmon (Oncorhynchus Tshawytscha) Counts At Three Lower Columbia River Spawning Sites, Eric Michael Loomis
Fluctuations In Chinook Salmon (Oncorhynchus Tshawytscha) Counts At Three Lower Columbia River Spawning Sites, Eric Michael Loomis
UNLV Theses, Dissertations, Professional Papers, and Capstones
Several hypotheses were developed to explore the pronounced increase in Chinook salmon (Oncorhynchus tshawytscha) returning to spawning grounds at the Cowlitz, Kalama, and Lewis Rivers, three tributaries of the lower Columbia River. The study was conducted using data compiled over a ten-year span from 1991-2001. Preliminary indications are that trends in climate are linked to these increases, with the absence of El Niño events and fluctuations in winter precipitation as likely explanations of these phenomena. The unique nature of Chinook life cycles causes them to utilize a variety of habitats that require ideal conditions for maximum survival rates. Correlations between …