Consulta: subjectFacets:"Individual based models"
Registros recuperados: 3
Data/hora: 10/06/2024 04:38:29

An adaptable toolkit to assess commercial fishery costs and benefits related to marine protected area network design
Provedor de dados: 5
Autores: Daigle, Rémi M.; Monaco, Cristian; Elgin, Ashley K.
Around the world, governments are establishing Marine Protected Area (MPA) networks to meet their commitments to the United Nations Convention on Biological Diversity. MPAs are often used in an effort to conserve biodiversity and manage fisheries stocks. However, their efficacy and effect on fisheries yields remain unclear. We conducted a case-study on the economic impact of different MPA network design strategies on the Atlantic cod (Gadus morhua) fisheries in Canada. The open-source R package that we developed to analyze this case study can be customized to conduct similar analyses for other systems. We used a spatially-explicit individual-based model of population growth and dispersal coupled with a fisheries management and harvesting component. We...
Tipo: Text
Palavras-chave: Cost-benefit analysis; Atlantic Cod; Individual based models; Conservation; Fisheries management.
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00690/80169/83235.pdf

Biophysical modelling of larval drift, growth and survival for the prediction of anchovy (Engraulis encrasicolus) recruitment in the Bay of Biscay (NE Atlantic)
Provedor de dados: 5
Autores: Allain, Gwenhael; Petitgas, Pierre; Lazure, Pascal; Grellier, Patrick.
Fish recruitment is the result of the integration of small-scale processes affecting larval survival over a season and large oceanic areas. A hydrodynamic model was used to explore and model these physical-biological interaction mechanisms and then to perform the integration from individual to population scales in order to provide recruitment predictions for fisheries management. This method was applied to the case of anchovy (Engraulis encrasicolus) in the Bay of Biscay (NE Atlantic). The main data available to investigate survival mechanisms were past growth (otolith) records of larvae and juveniles sampled at sea. The drift history of these individuals was reconstructed by a backtracking procedure using hydrodynamic simulations. The relationships...
Tipo: Text
Palavras-chave: Recruitment; Physical biological interactions; Individual based models; Biscay; Anchovy.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-3422.pdf

Modélisation biophysique pour la prévision du recrutement
Provedor de dados: 5
Autores: Allain, Gwenhael.
Exploited fish populations are dependent on recruitment (i.e. size of the new year class) to sustain their abundance. Recruitment variations are related to hydroclimatic variations and may accentuate the detrimental effects of fishing. Recruitment prediction requires accurate fisheries oceanographic tools, which are expected to be more reliable than large-scale correlation analyses between fish abundance and climate variables.  Recruitment is the result of the integration over a season and large oceanic areas of processes affecting larval survival, which are dependent on small-scale mechanisms. Hydrodynamic models are a tool to perform this integration. This thesis aims at exploring and modelling physical-biological interaction mechanisms in order to...
Tipo: Text
Palavras-chave: Anchovy; Upwelling; Turbulence; Retention; Fisheries management; Population dynamics; Stock environment interaction; Stock recruitment relation; Scale integration; Individual based models; Survival; Growth; Otolith; Physical biological interactions; Prediction; Recruitment; Turbulence; Rétention; Méso échelle; Intégration des échelles; Modèle de survie; Modèle de ponte; Modèles individu centrés; Modèles de corrélation; Modèles stochastiques; Juvéniles; Larves; Otolithe; Modèle de croissance; Interactions physique biologie; Prévision; Recrutement.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2004/these-5.pdf