Skip to Content

Switch language English
- Switch language
- Deutsch
- English
- Español
- Français
- Italiano
- Português do Brasil
- 中文
Login

ScholarsArchive@OSU

Home
About
Help
Contact

Search ScholarsArchive@OSU

Advanced Search

Search Constraints

Start Over

Filtering by: Creator Hill, David F. Remove constraint Creator: Hill, David F. Academic Affiliation Fisheries and Wildlife Remove constraint Academic Affiliation: Fisheries and Wildlife Advisor Sampson, David B. Remove constraint Advisor: Sampson, David B. Resource Type Masters Thesis Remove constraint Resource Type: Masters Thesis

« Previous | 1 - 10 of 11 | Next »

Relevance
Title [A-Z]
Title [Z-A]
Date Created ▼
Date Created ▲
Date Uploaded ▼
Date Uploaded ▲

Number of results to display per page

10 per page
20 per page
50 per page
100 per page

View results as:

List Gallery Masonry

Search Results

Variation in the maturity schedule of English sole and its influence on calculating the F₃₅ ̳% target fishing rate

Creator:

Al-Jufaily, Saud M.

Resource Type:

Masters Thesis

Full Text:

approved: David B. Sampson This study analyzed the geographic variation in the maturity schedule for the
Statistical model selection criteria and their application to the Stock Synthesis assessment program

Creator:

Helu, Siosaia Langitoto

Abstract:

Statistical modeling has evolved around building increasingly more complex models, even though it is common knowledge among statisticians that an optimal model size usually exists for any given data set. Having overly complex models leads to imprecise parameter estimates and tends to increase the subjective role of the modeler, which...

Resource Type:

Masters Thesis

Full Text:

Approved: David B. Sampson Abstract Statistical modeling has evolved around building increasingly
Feasibility of supplementary sampling of the commercial groundfish landings in Oregon using seafood plant workers

Creator:

Builder, Tonya L.

Abstract:

Fishery dependent data--length distributions, sex ratios, maturity schedules, and species composition of landed catches--are necessary for stock assessments. These data are currently collected by state port biologists using a sampling design that randomly selects samples from a small percentage of a very large target population. Sampling programs may need to...

Resource Type:

Masters Thesis

Full Text:

approved: David B. Sampson Fishery dependent datalength distributions, sex ratios, maturity schedules, and
Using Oregon trawl logbooks to study spatial and temporal characteristics of commercial groundfish species associations

Creator:

Lee, Yong Woo

Abstract:

Species associations of fifteen major commercial groundfish species in the northeastern Pacific ocean and their spatial and temporal characteristics were studied using Oregon bottom trawl logbook data, 1987 to 1993. Screening procedures were used to remove questionable data from the original logbook files, which resulted in the exclusion of information...

Resource Type:

Masters Thesis

Full Text:

ASSOCIATIONS. Abstract approved: David B. Sampson Species associations of fifteen major commercial
Distribution and assemblages of demersal fish in Oman

Creator:

Ambusaidi, Hilal Saud

Abstract:

The Sultanate of Oman has 1700 km of coastline extending from the Arabian Gulf south to the Arabian Sea. The demersal fish distributions and assemblages have not previously been well defined. In winter, variations in the oceanography of the area are minimal. In summer, however, the Arabian Sea is strongly...

Resource Type:

Masters Thesis

Full Text:

approved: David B Sampson The Sultanate of Oman has 1700 km of coastline extending from the Arabian
Evaluating the data-poor fishery stock assessment method, DB-SRA

Creator:

Owashi, Brandon R.

Abstract:

Depletion-Based Stock Reduction Analysis (DB-SRA; Dick and MacCall, 2011) is a catch-only fisheries stock assessment model that has been developed to estimate an overfishing limit (OFL) in data-poor situations. DB-SRA projects the biomass trajectories of a stock by means of a catch time series and five parameters: the instantaneous, per...

Resource Type:

Masters Thesis

Full Text:

: _______________________________________________________________________________ David B. Sampson Depletion-Based Stock Reduction Analysis (DB-SRA; Dick and MacCall, 2011
The effects of harvesting Pacific hake (Merluccius productus) on the offshore community : the results of a multi-species model

Creator:

Gartz, Russell G.

Abstract:

The effects of harvesting Pacific hake (Merluccius productus) were examined with a multi-species numerical model composed of seven logistic growth equations coupled by a food web. The food web was composed of: California sea lions (Zalophus californianus), hake, sablefish (Anaplopoma fimbria), spiny dogfish (Squalus acanthias), a generic rockfish species (Sebastes...

Resource Type:

Masters Thesis

Full Text:

. stract approved: David B. Sampson The effects of harvesting Pacific hake (Merluccius product us) were
Fishing location choices in Oregon trawl fisheries : are fishermen risk-averse or risk-prone?

Creator:

Trisak, Jiraporn

Abstract:

Despite the fact that fishing is an inherently uncertain business, risk has rarely been formally recognized in fisheries science or management. Few fishery management plans include any form of risk assessment and those that do focus on minimizing risk caused by uncertainty associated with markets and environmental conditions. Fishermen's attitudes...

Resource Type:

Masters Thesis

Full Text:

Choices in Oregon Trawl Fisheries: Are Fishermen Risk-averse or Risk-prone ? Abstract approved: David
The status and life history traits of endemic, native and introduced species in Lake Lanao, Philippines

Creator:

Ismail, Gladys B.

Abstract:

The endemic cyprinids of Lake Lanao, Philippines have been described as a species flock and are thought to be an example of explosive evolution. However, based on historical surveys, 16 of the 18 cyprinid species endemic to Lake Lanao are now believed to be extinct. Furthermore, non-native species have been...

Resource Type:

Masters Thesis

Full Text:

, Philippines Abstract approved: ________________________________________________ David B. Sampson
Habitat associations and determinants of refuge use in post-settlement lingcod (Ophiodon elongatus)

Creator:

Petrie, Megan E.

Abstract:

Lingcod are an overexploited fish species in the Pacific Northwest and although there has been extensive study of the habitat requirements of adults, particularly during spawning, relatively little is known regarding the habitat requirements of post-settlement juveniles. Many juvenile fish use structural components of habitat to alleviate the risk of...

Resource Type:

Masters Thesis

Full Text:

10(1): 43-58. Koenig, C. C. and F. C. Coleman. 1998. Absolute abundance and survival of juvenile

« Previous
Next »
1
2

Limit your search

Academic Affiliation

Fisheries and Wildlife[remove]11

Advisor

Sampson, David B.[remove]11
Miller, Jessica A.1
Ryer, Clifford H.1

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1995 to 2015

View distribution

Committee Member

Bailey, John D.1
Bolte, John P.1
Chan, Samuel S.1
Conser, Ramon J.1
Gitelman, Alix I.1
more Committee Members »

Creator

Al Jufaily, Saud M.1
Ambusaidi, Hilal Saud1
Builder, Tonya L.1
Denson, Latreese S.1
Gartz, Russell G.1
more Creators »

Date

Date range begin – Date range end

Current results range from 1994 to 2015

View distribution

Decade

2010-20193
2000-20092
1990-19996

Degree Field

Fisheries Science10
Fisheries and Wildlife1

Degree Level

Master's11

Degree Name

Master of Science (M.S.)11

Language

English [eng]11

License

All rights reserved5

Non-Academic Affiliation

Oregon State University. Graduate School11

Peer Reviewed

No10

Resource Type

Masters Thesis[remove]11

Rights Statement

Copyright Not Evaluated6
In Copyright5

Subject

Fish stock assessment -- Mathematical models3
Competition (Biology) -- Pacific Ocean -- Mathematical models1
Cyprinidae -- Life cycles -- Philippines -- Lanao, Lake1
Cyprinidae -- Philippines -- Lanao, Lake1
Fish populations -- Estimates -- Mathematical models1
more Subjects »

Scholars Archive is a service of Oregon State University Libraries & Press

121 The Valley Library
Corvallis, OR 97331-4501

Contact Us
Services for Persons with Disabilities

Powered by Hyrax 3.6.0

Copyright © 2018 Oregon State University
Licensed under the Apache License, Version 2.0

Core Trust application (pdf)