Index Catalog // ScholarsArchive@OSU

Creator:: Johnston, Robert
Abstract:: Stated preference (SP) methods such as contingent valuation and choice experiments are often used to estimate values associated with marine and coastal ecosystem services. However, applications do not always apply best practices, leading to questions regarding the validity and relevance of welfare estimates. This presentation outlines contemporary best-practice recommendations for...
Resource Type:: Presentation

Creator:: Britton, Florence
Abstract:: The species-based approach currently implemented in Europe where catch limits (TAC) are set for each stock independently, is not adapted to the management of mixed fisheries that harvest various species. The economic efficiency of those fisheries is often constrained by the existence of « choke species » for which catch...
Resource Type:: Presentation

Creator:: UIrich, Clara, Doering, Ralf, Prellezo, Raul, and Vermard, Youen
Abstract:: The recognition of the complex biological and economic interactions occurring in mixed-demersal fisheries have long underpinned the development of fleets- and fisheries-based models and data collection in European fisheries. More recently, mixed-fisheries management plans are being designed and implemented in the frame of the EU Common Fishery Policy. The central...
Resource Type:: Presentation

Creator:: Saul, Steven
Abstract:: Understanding and quantifying the behavior of fishers is important given the role human behavior plays in fish population dynamics and fisheries management. Various quantitative and qualitative methods have been used to collect information on the behavior of fishers. This study discusses the benefits and drawbacks of three of these methods:...
Resource Type:: Presentation

Creator:: Njaya, Friday
Abstract:: In this article I analyse a community-based small scale fisheries management (now becoming a co-management arrangement) for Mbenji Island located in the central part of Lake Malawi through the lenses of the concept of power. The analysis is at the local level where majority of the important actors operate. The...
Resource Type:: Presentation

Creator:: Sobo, Fatma
Abstract:: In developing countries, small scale or artisanal fisheries catch data-collection systems, are not performing satisfactorily. This is due to the systems not giving out what is needed for assessing the appropriate fisheries, policy and management decisions, tracking the trends of exploitation of fishery resources and the overall performance of existing...
Resource Type:: Presentation

Creator:: Dolder, Paul, Minto, Coilin, Guarini, Jean-Marc, and Poos, Jan J.
Abstract:: Fishers exploit populations that are heterogeneously distributed in space and time without full knowledge of species distributions and with fishing gear that is not fully selective. The ability to change catch composition is limited by species mix at a particular location and time and the capture characteristics of the fishing...
Resource Type:: Presentation

Creator:: Bethke, Eckhard
Abstract:: The feed conversion ratio (FCR) or its reciprocal, the feed efficiency ratio (FER) is currently used to estimate the feed requirements in aquaculture. This has a serious disadvantage. The FCR is a function of feeding rate, initial and final mass at fattening, temperature and quality of feed. Therefore the FCR...
Resource Type:: Presentation

Creator:: Yuniarta, Shinta, Groeneveld, Rolf, Van Zwieten, Paul, Wiryawan, Budy, Verreth, Johan, and Van Ierland, Ekko
Abstract:: Indonesian tuna fisheries are complex due to variation in the scale of fleet in the fisheries, their multi-species nature and problems with data collection. Moreover, like many developing-country fisheries, their management needs to take into account many other goals besides rents maximization, such as the distribution of rents and the...
Resource Type:: Presentation

Creator:: Nielsen, J. Rasmus
Abstract:: A series of session stakeholder presentations will address the current status, challenges, needs and future perspectives for implementation of management and ecological / economic assessment of data poor fish stocks and fisheries in management advice. This covers methods, simulation models and management strategy evaluation (MSE) tools to conduct assessment and...
Resource Type:: Presentation

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