Index Catalog // ScholarsArchive@OSU

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

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

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

The influence of biological characteristics on fisheries co-management : a game theory perspective

Creator:: Trisak, Jiraporn
Abstract:: Co-management is considered an alternative approach to fisheries management, however, not all co-managed fisheries have been successful. Most studies discussing the success and failure of co-management have emphasized economic and social attributes of success and failure, such as fishery rights and institutional arrangements. The effect on co-management of biological characteristics,...
Resource Type:: Dissertation
Full Text:: B. Sampson Co-management is considered an alternative approach to fisheries management, however

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

Stock Synthesis Assessments of Spatially Structured Fish Populations with an Environmental Driver on Recruitment Distribution : A Simulation Study and Discussion

Creator:: Denson, LaTreese S.
Abstract:: Stock assessments use statistical models and empirical data to re-create the population dynamics of a stock in order to provide estimates of biomass and fishing mortality rates to inform fisheries management. Fish stocks are not uniformly distributed across spatial regions, but stock assessments typically ignore stock spatial structure, for the...
Resource Type:: Masters Thesis
Full Text:: : _______________________________________________________________________________ David B. Sampson Stock assessments use statistical models and empirical data to re-create

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

Sensitivity of the stock synthesis assessment model : a simulation approach

Creator:: Yin, Yanshui
Abstract:: Stock assessments for many U.S. Pacific coast groundfish stocks are developed using the catch-at-age method known as Stock Synthesis. In this work a simulation package was developed and used to evaluate the sensitivity of the Stock Synthesis program. More specifically, the evaluation focused on the impacts of input data errors...
Resource Type:: Dissertation
Full Text:: Stock Synthesis Assessment Model: a Simulation Approach. Abstract approved: David B. Sampson Stock

Qualitative analysis of sardine and anchovy oscillations and implications for the management of sardine and anchovy fisheries in Oman

Creator:: Al-Jufaili, Saud M.
Abstract:: Sardines and anchovies are small pelagic fishes that support important commercial fisheries around the world. This project reviews the inverse cyclic behavior in the abundance of these two stocks, which is a striking feature in many regions. In addition, the project used qualitative loop analysis techniques to analyze the feasible...
Resource Type:: Dissertation
Full Text:: Fisheries in Oman. Abstract approved: David B. Sampson Sardines and anchovies are small pelagic fishes

Oceanographic effects on the dynamics of food habits and growth condition of some groundfish species of the Pacific Northwest

Creator:: Lee, Yong Woo
Abstract:: Marine fish are subject to direct and indirect oceanographic variations operating at short and long time scales. In this study feeding habits and long-term growth condition of several groundfish species of the Pacific Northwest are examined to understand the relationship between variations in the fish's biological and life history components...
Resource Type:: Dissertation

ScholarsArchive@OSU

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

Using Oregon trawl logbooks to study spatial and temporal characteristics of commercial groundfish species associations

The status and life history traits of endemic, native and introduced species in Lake Lanao, Philippines

The influence of biological characteristics on fisheries co-management : a game theory perspective

The effects of harvesting Pacific hake (Merluccius productus) on the offshore community : the results of a multi-species model

Stock Synthesis Assessments of Spatially Structured Fish Populations with an Environmental Driver on Recruitment Distribution : A Simulation Study and Discussion

Statistical model selection criteria and their application to the Stock Synthesis assessment program

Sensitivity of the stock synthesis assessment model : a simulation approach

Qualitative analysis of sardine and anchovy oscillations and implications for the management of sardine and anchovy fisheries in Oman

Oceanographic effects on the dynamics of food habits and growth condition of some groundfish species of the Pacific Northwest

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