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Browsing International Institute of Fisheries Economics and Trade (IIFET) by Subject

Browsing International Institute of Fisheries Economics and Trade (IIFET) by Subject "Bioeconomic Modeling"

Now showing items 1-11 of 11

Bio-economic Model of Eastern Baltic Cod Under the Influence of Nutrient Enrichment

Nguyen, Viet Thanh (International Institute of Fisheries Economics and Trade, 2012)

The objective of this paper is to study the economic management of Eastern Baltic cod (Gadusmorhua) under the influence of nutrient enrichment. Average nitrogen concentration in the spawning areas during the spawning s ...
Bioeconomic Modeling for the Evaluation of Fishery Resources Based on the Schaefer Model

Oishi, Taro; Yagi, Nobuyuki; Ariji, Masahiko; Sakai, Yutaro (International Institute of Fisheries Economics and Trade, 2012)

In this study, we tried to develop a theoretical framework based on the Schaefer model and establish bioeconometric models to estimate the index of fishery resources using cross-country macro data. The characteristics of ...
Deterministic Population Dynamics of Fish Stocks at Low Population Sizes: A Parametric Spline Approach

Maroto, Jose M.; Moran, Manuel (International Institute of Fisheries Economics and Trade, 2012)

We develop a methodological approach using splines to analyze the deterministic population dynamics of fish stocks at low stock levels. Considering the aggregate Northern cod stock by way of illustration, we reject the h ...
Developing a predator-prey model for the hake and blue whiting Spanish fisheries

Perez-Perez, Marcos; Torralba-Cano, Julia; Garza-Gil, Dolores; Varela-Lafuente, Manuel (International Institute of Fisheries Economics and Trade, 2012)

The aim of this work is to develop a predator-prey model for two species of commercial importance captured by the Spanish fishing fleet in the National Fishing Ground (ICES areas VIIIc and IXa). In this model, the Southe ...
DISPLACE: a dynamic, individual-based model for spatial fishing planning and effort displacement: Integrating underlying fish population models

Bastardie, Francois; Nielsen, J. Rasmus; Miethe, Tanja (International Institute of Fisheries Economics and Trade, 2012)

We previously developed a spatially explicit, individual-based model (IBM) evaluating the bio-economic efficiency of fishing vessel movements between regions according to the catching and targeting of different species b ...
Estimating MSY and MEY in Multi-Species and Multi-Fleet Fisheries: The Case of the Bay of Biscay Mixed Fisheries

Guillen, Jordi; Macher, Claire; Merzéréaud, Mathieu; Bertignac, Michel; Fifas, Spyros; Guyader, Olivier (International Institute of Fisheries Economics and Trade, 2012)

Most fish stocks worldwide are not optimally exploited and are therefore are producing less in biologic and economic terms that what it could be obtained. MSY objective for all the stocks by 2015 is put forward by severa ...
IIFET 2012 Conference Program

Shriver, Ann L. (International Institute of Fisheries Economics and Trade, 2012)

This is the final conference program grid and reflects the changes due to speaker availability.
Optimal Bioeconomic Multispecies Fisheries Management: A Baltic Sea Case Study

Nieminen, Emmi; Lindroos, Marko; Heikinheimo, Outi (International Institute of Fisheries Economics and Trade, 2012)

We assess cod, herring, and sprat fisheries in the Baltic Sea under different salinity conditions using a bioeconomic model with simple predation functions. We compare the current fishing policy to an optimal policy unde ...
Optimal Management of Conflicting Species: Grey Seal (Halichoerus grypus) and Atlantic Salmon (Salmo salar) in the Northern Baltic Sea

Holma, Maija; Lindroos, Marko; Kulmala, Soile (International Institute of Fisheries Economics and Trade, 2012)

In the Baltic Sea, the successful conservation of grey seals has increased seal-induced damages to the Atlantic salmon fishery. The paper addresses the conflict between the conservation of the formerly endangered species ...
Robust Management of a Harvested Ecosystem Model

Regnier, Esther; De Lara, Michel (International Institute of Fisheries Economics and Trade, 2012)

The World Summit on Sustainable Development (Johannesburg, 2002) encouraged the application of the ecosystem approach by 2010. We propose a framework that deals jointly with i) ecosystem dynamics, ii) conflicting issu ...
West Africa Fisheries and Seafood Bio-economic Assessment Model: Phase II Development Project, Model Version 6.2

Sylvia, Gil; Davis, Shannon (International Institute of Fisheries Economics and Trade, 2012)

Major fishery investment has recently been implemented in West Africa as part of the World Bank's West Africa Regional Fisheries Program. To support this effort the New Partnership for Africa's Development funded develop ...