Index Catalog // ScholarsArchive@OSU

Bycatch in the ocean shrimp Pandalus jordani fishery

Creator:: Hoover Krutzikowsky, Vicki
Abstract:: The purpose of this research was to explore the impact of finfish bycatch on the ocean shrimp Pandalus jordani fishery using two methods. One method looked at the breakage of the shrimp by finfish bycatch in the nets. The other looked at the impact of bycatch on fishing decisions. At-sea...
Resource Type:: Masters Thesis
Full Text:: my committee: Courtland Smith, Gil Sylvia, Bob Hannah and David Sampson, for their patience and

Blue whale (Balaenoptera musculus) vocalizations recorded in the North Pacific Ocean : geographic, seasonal and diel variation

Creator:: Stafford, Kathleen Mary
Resource Type:: Dissertation
Full Text:: throughout and for that I remain very grateful. Drs. Sue Moore, David Sampson and Fred Ramsey generously

Evaluation of length distributions and growth variance to improve assessment of the loggerhead sea turtle, (Caretta caretta)

Creator:: Vaughan, Jason R.
Abstract:: Nest counts from the largest subpopulation of the loggerhead sea turtle (Caretta caretta) in the Atlantic, peninsular Florida, have been declining since 1998. Analyzing trends of nests and adult females is insufficient to determine the overall status of a sea turtle population, due to variation in nesting frequency and a...
Resource Type:: Masters Thesis
Full Text:: , Selina Heppell, David Sampson, Lea Murphy and Melissa Snover for all of their help and inspiring

Biological and mathematical modeling of dynamics of furunculosis in chinook salmon (Oncorhynchus tshawytscha) and infectious hematopoietic necrosis (IHN) in rainbow trout (Oncorhynchus mykiss)

Creator:: Ogut, Hamdi
Abstract:: A series of experiments with Aeromonas salmonicida and infectious hematopoietic necrosis virus (IHNV) were carried out to determine dynamics of the spread of infection in chinook salmon (1.2-1.98g) and rainbow trout (1.2-3.1g). It was found in experiments with A. salmonicida that fish infected by bath immersion became infectious at 4...
Resource Type:: Dissertation
Full Text:: members: Dr. Robert Olson, Dr. David Sampson, Dr. Richard Holt, Dr. Anne Rossignol, Dr. Carl Schreck and

Sea urchin-kelp forest communities in marine reserves and areas of exploitation : community interactions, populations, and metapopulation analyses

Creator:: Moctezuma, Gabriela Montaño
Abstract:: Marine ecosystems can be exposed to natural and anthropogenic disturbances that can lead to ecological failures. Marine reserves have been lately suggested to protect marine populations and communities that have been affected by habitat destruction and harvest. This research evaluates the potential role of two marine reserves established in Oregon...
Resource Type:: Dissertation
Full Text:: . Christopher Mundt, Philippe Rossignol, David Sampson, and Sylvia Yamada for their friendly advice, support

Qualitative analysis of the community matrix

Creator:: Dambacher, Jeffrey M.
Abstract:: This work sets forth a reformulation of Levins' loop analysis for the qualitative modeling of complex dynamical systems. Relationships between members of ecological communities can be analyzed through a qualitatively specified community matrix, whereby +1, -1, or 0 represent effects of one species upon another. A contribution is made to...
Resource Type:: Dissertation

Marine habitat use of black-footed and Laysan albatrosses during the post-breeding season and their spatial and temporal overlap with commercial fisheries

Creator:: Fischer, Karen Naess
Abstract:: Incidental bycatch in commercial fisheries has been identified as a threat to black-footed albatrosses (Phoebastria nigripes) and Laysan albatrosses (P. immutabilis). Effective long-term conservation of these albatrosses necessitates a thorough understanding of their marine distribution, which marine habitats are selected during foraging, and where they are most likely to interact...
Resource Type:: Masters Thesis
Full Text:: challenges along the way. I also thank my committee members, Dr. David Sampson and Dr. Dawn Wright, and

The economics of spatial choice and displacement: case study of the Oregon bottom trawl groundfish fishery

Creator:: Valcic, Branka
Abstract:: To increase the knowledge needed to successfully implement the ecosystem-based approach to fishery management, this dissertation investigates important issues within the economics of choice and the economics of displacement. In particular, a discrete choice model of the fishing location decision in the Newport, Oregon bottom trawl groundfish fishery is estimated...
Resource Type:: Dissertation
Full Text:: choice modeling and testing, and to Dr. David Sampson for sharing his knowledge about the groundfish

Metamorphosis, growth, and settlement of Pacific sanddab (Citharichthys sordidus) to a continental shelf nursery, inferred from otolith microstructure

Creator:: Donohoe, Christopher James
Abstract:: Processes of metamorphosis, settlement, and growth were examined in Pacific sanddab using field studies and otolith microstructure. This flatfish transforms at large sizes, has a gradual metamorphosis, and settles to a nursery on the middle continental shelf. Eye migration takes 3 months and "metamorphosis proper" which begins after completion of...
Resource Type:: Dissertation
Full Text:: ; Dr. David B. Sampson, Dr. William G. Pearcy, Dr. Philip D. Whanger, and Dr. William A. Zollinger

ScholarsArchive@OSU

Bycatch in the ocean shrimp Pandalus jordani fishery

Blue whale (Balaenoptera musculus) vocalizations recorded in the North Pacific Ocean : geographic, seasonal and diel variation

Evaluation of length distributions and growth variance to improve assessment of the loggerhead sea turtle, (Caretta caretta)

Biological and mathematical modeling of dynamics of furunculosis in chinook salmon (Oncorhynchus tshawytscha) and infectious hematopoietic necrosis (IHN) in rainbow trout (Oncorhynchus mykiss)

Sea urchin-kelp forest communities in marine reserves and areas of exploitation : community interactions, populations, and metapopulation analyses

Qualitative analysis of the community matrix

Marine habitat use of black-footed and Laysan albatrosses during the post-breeding season and their spatial and temporal overlap with commercial fisheries

The economics of spatial choice and displacement: case study of the Oregon bottom trawl groundfish fishery

Metamorphosis, growth, and settlement of Pacific sanddab (Citharichthys sordidus) to a continental shelf nursery, inferred from otolith microstructure

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