Index Catalog // ScholarsArchive@OSU

Creator:: Andreasson, Stefan and Flaaten, Ola
Abstract:: Gear technologists have, in recent years, developed rigid sorting grids, Sort-X, in bottom trawls, to improve the size selectivity of this type of gear. Experiments with the Sort-X system in the aft sections of trawls were carried out aboard Norwegian and Russian trawlers along the coast of Northern Norway and...
Resource Type:: Research Paper

Creator:: Flaaten, Ola
Abstract:: The aim of this paper is to assist teaching undergraduate students how to analyse the issue of fish stock investment. The mathematical prerequisites are a basic knowledge of calculus. Both discrete and continuos time frameworks are used. To fish down or to build up a fish stock takes time, and...
Resource Type:: Research Paper

Creator:: Eide, Arne, Eriksen, Guri Hjallen, and Flaaten, Ola
Abstract:: This is a study on economic implications of the 3 year harvest control rule (HCR) for the Northeast Arctic cod stock, decided in November 2002 by the Joint Norwegian-Russian Fisheries Commission. Outcomes of this rule are compared to those of five other rules, including the previous one based on a...
Resource Type:: Research Paper

Creator:: Thi Nguyen, Kim Anh, Flaaten, Ola, Nguyen, Tuan, Thi Phan, Dung, and Thi Nguyen, Tram Anh
Abstract:: Vietnam’s marine fisheries are in need of knowledge-based management. This necessitates the establishment of reliable indicators, which in turn entails a good data collecting and processing system. To bridge the gap between specific requirements for fisheries policy development and the limited resources available, we have conducted a study on costs...
Resource Type:: Research Paper

Creator:: Flaaten, Ola and Mjolhus, Einar
Abstract:: This paper demonstrates analytically how a nature reserve may protect the total population, realize maximum sustainable yield (MSY), maximum economic yield (MEY) and consumer surplus (CS) and how this depends on biological growth, migration, reserve size and economic parameters. The pre-reserve population is assumed to follow the logistic growth law...
Resource Type:: Research Paper

Creator:: Flaaten, Ola and Pope, John
Abstract:: Fisheries biologists and other marine scientists working closely with the regional fisheries organisations (RFOs), such as the International Council for Exploration of the Sea (ICES) have developed and applied different concepts and methods, including reference points, for assessment and management of fish stocks. However, management recommendations are usually not based...
Resource Type:: Research Paper

Creator:: Long, Le Kim, Flaaten, Ola, and Kim Anh, Nguyen Thi
Abstract:: Economic performance indicators are needed in order to improve fisheries policy in Vietnam. The research project “Revenues and Costs of Fishing Vessels in the Nha Trang Area” has been established to meet these needs. A questionnaire about technical characteristics and economic data of vessel and gear in use in the...
Resource Type:: Research Paper

Creator:: Quach, Thi Khanh Ngoc, Flaaten, Ola, and Kim Anh, Nguyen Thi
Abstract:: Are Marine Protected Areas positive for adjacent fisheries? This is a study of the technical efficiency of small-scale trawlers in Nha Trang, Vietnam following establishment of Nha Trang Bay Marine Protected Area (NTB-MPA) that imposed a trawl ban to protect marine biodiversity and regenerate fish stocks. Data were collected through...
Resource Type:: Other

Creator:: Nguyen, Kim Anh Thi, Nguyen, Tuan, Flaaten, Ola, and Nguyen, Tram Anh Thi
Abstract:: Economic indicators are needed for future knowledge-based fisheries management in Vietnam. This entails a good data collecting and processing system. This paper contributes to this requirement for the tuna-mackerel gillnet fishery, near-shore and offshore, in Nha Trang, South-Central Vietnam. For 2005 and 2006 fifty vessels were surveyed for technical characteristics,...
Resource Type:: Other

Creator:: Flaaten, Ola and Schulz, Carl Erik
Abstract:: The majority of monitored fish stocks globally is fully or over exploited, that is, at or below their maximum sustainable yield stock levels. Despite this resource situation international trade in fish products have been increasing for a long time. An export tax on fish and fish products, as an alternative...
Resource Type:: Research Paper

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