http://hdl.handle.net/1957/13727 2013-05-21T18:26:58Z 2013-05-21T18:26:58Z Davis, Amy E. http://hdl.handle.net/1957/19586 2010-12-17T21:18:01Z 2010-12-17T00:00:00Z

Potential Impacts of Ocean Energy Development on Marine Mammals in Oregon Davis, Amy E. The demand for clean renewable energy sources is increasing worldwide and the state of Oregon hopes to establish itself as a leader in ocean wave energy research and development. Seven coastal counties have been selected as potential offshore sites for wave energy parks, and Tillamook County has been identified for a potential wind-float park. The state of Oregon works in partnership with several federal, state, and non-profit agencies to oversee the responsible development of ocean energy. The technology used for wave energy development is relatively new and little is known about the environmental impacts it will have on our coastal ecosystems. In an effort to identify potential environmental impacts of wave energy development, a workshop was held at the Hatfield Marine Science Center in Newport, Oregon, to assess uncertainties and identify research projects that could aid in minimizing the impact. Of concern regarding marine mammals was potential collision and entanglement in mooring cables and behavioral reactions to the acoustic output of wave energy buoys during installation and operation. There is available research on the impacts of marine wind energy on marine mammals, however, it is limited and more baseline studies are needed. This review is focused on the development of ocean energy in Oregon, potential impacts to marine mammals, and reviewing current and future research that could aid in mitigating those impacts. Specific interest is placed on the Eastern Gray whale (Eschrichtius robustus), Harbor porpoise (Phocoena phocoena), and local pinniped populations. While clean renewable energy development in Oregon is beneficial for the economy, it may come with ecological costs, including impacts on Oregon’s marine mammals. This paper was the result of a student research project for the Fall 2010 FW 426/526, Coastal Ecology and Resource Management. It was presented as a poster December 8, 2010 at the Hatfield Marine Science Center.

2010-12-17T00:00:00Z Borgen, Katie Head, Marybeth Mills, Mark Zappa, Jacci http://hdl.handle.net/1957/16236 2010-06-10T22:38:38Z 2010-06-10T22:38:38Z

Does Diet Affect Growth in Juvenile Lingcod? Borgen, Katie; Head, Marybeth; Mills, Mark; Zappa, Jacci To determine if diet affects the growth rate of juvenile ling cod, we began with three initial objectives: 1) Record the growth rates of juvenile lingcod on different diets (squid and sardine); 2) Determine if hemocyanin will cause lingcod skin and muscle pigmentation will take on a blue/green pigmentation; and 3) Observe the acclimation process as the juvenile lingcod adjust to an artificial environment. Our initial results showed no significant differences in growth rate. Further research will focus on seeing if diet can affect color of our fish from controlled tank one (sardine) and experimental tank two (squid)diets. We are hypothesizing that the hemocyanin in the squid blood will result in our fish turning blue-green. Outcomes will assessed using a comparison of post-treatment sampling photos with baseline photos taken at start of experiment. This poster was the result of a student research project for the Fall 2009 FW 426/526, Coastal Ecology and Resource Management. It was presented December 9, 2009 at the Hatfield Marine Science Center.

2010-06-10T22:38:38Z Kocourek, Amy http://hdl.handle.net/1957/13761 2010-01-04T15:41:31Z 2010-01-04T15:41:31Z

The alteration and restoration of Lint Slough Kocourek, Amy Lint Slough is a small “finger” of the Alsea River estuary located in Waldport, Oregon, which drains a 4.5 square mile basin. Infrastructure associated with a former fish research facility has recently been removed and the slough is being transformed back to its natural condition. In 1963 the Oregon Game Commission (now the Oregon Department of Fish and Wildlife) transformed Lint Slough into a salmon rearing research facility for coho, chinook, steelhead, and cutthroat trout. They dammed the upper and lower ends of the slough to create a ¾ mile long rearing pond. Lint Creek fed freshwater into the pond from upstream and the ocean fed saltwater into the pond via a levied canal built along the west side of the pond. Water control structures allowed researchers to regulate salinity in the pond. Researchers attempted to raise juvenile fish to the smolt phase at an accelerated rate and release the smolts into the ocean by autumn for the benefit of sport and commercial fishermen. Many challenges thwarted their efforts to raise fish in this facility. After ten years of largely unsuccessful experimentation, research ceased and the facility was abandoned. the salmon rearing research facility and restoring Lint Slough to its natural condition. This poster was the result of a student research project for the Fall 2009 FW 426/526, Coastal Ecology and Resource Management. It was presented December 9, 2009 at the Hatfield Marine Science Center.

2010-01-04T15:41:31Z Courbis, Sarah http://hdl.handle.net/1957/13735 2009-12-24T20:03:52Z 2009-12-24T20:03:52Z

Review of Selected Marine Mammals in the North Pacific 1978-1997 Courbis, Sarah Each review covers the population, abundance and distribution, food and feeding, habits, reproduction, mortality and economics, anthropogenic interactions and mortality. The review was completed in May 1998 while the author was a student intern.

2009-12-24T20:03:52Z