Modelling the use of two fishery access rights, concessions and licences, in the red sea urchin, Strongylocentrotus franciscanus (Agassiz), fishery at Santo Tomás, Baja California, Mexico

Modelling the use of two fishery access rights, concessions and licences, in the red sea urchin, Strongylocentrotus franciscanus (Agassiz), fishery at Santo Tomás, Baja California, Mexico

Various stages of the red sea urchin, Strongylocentrotus franciscanus (Agassiz), fishery were simulated to evaluate the effect of two types of access rights under Mexican law: concessions and licences. The resource biomass was evaluated using the critical depensation and Schaefer models. Each model...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Ramírez-Féliz, E, Manzano-Monroy, HG
Formato: Online
Lenguaje:eng
Publicado: Iniversidad Autónoma de Baja California 2004
Acceso en línea:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/343
Etiquetas: Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
id oai:cienciasmarinas.com.mx:article-343
record_format ojs
spelling oai:cienciasmarinas.com.mx:article-3432019-04-09T20:32:11Z Modelling the use of two fishery access rights, concessions and licences, in the red sea urchin, Strongylocentrotus franciscanus (Agassiz), fishery at Santo Tomás, Baja California, Mexico Comparación entre el uso de dos derechos de acceso pesquero, concesiones y permisos, en la pesquería de erizo rojo de mar, Strongylocentrotus franciscanus (Agassiz), en Santo Tomás, Baja California, México Ramírez-Féliz, E Manzano-Monroy, HG red sea urchin Allee effect critical depensation Schaefer Bayes concessions licences erizo rojo de mar efecto Allee depensación crítica Schaefer Bayes concesión permiso Various stages of the red sea urchin, Strongylocentrotus franciscanus (Agassiz), fishery were simulated to evaluate the effect of two types of access rights under Mexican law: concessions and licences. The resource biomass was evaluated using the critical depensation and Schaefer models. Each model was evaluated as a static or dynamic system. The parameters required for each model were determined from government data and by generating stochastic numbers using the Monte Carlo method to adjust to a dynamic model. In general, both models predicted catches smaller than those observed. The five-year-period simulation for both models showed a drop in biomass when licences are issued, whereas a similar simulation for concessions resulted in increased biomass, except when high temperatures occurred. Our results suggest that issuing concessions rather than licences is the best option to conserve the fishery. Se simularon diversos escenarios pesqueros con situaciones de riesgo para la pesquería del erizo rojo de mar, Strongylocentrotus franciscanus, y se evaluó el efecto de dos tipos de derechos de uso en la legislación pesquera mexicana: permisos y concesiones. La biomasa del recurso se calculó con dos modelos, el de depensación crítica y el de Schaefer, tanto dinámica como estáticamente. Los parámetros requeridos por cada modelo se determinaron por dos vías: información de oficinas gubernamentales y generando números estocásticos por el Método Monte Carlo ajustándose a un modelo dinámico. El ajuste de los valores de los parámetros de ambos modelos fue por medio de generación de números estocásticos por el méodo de Monte Carlo. En general, ambos modelos pronosticaron capturas menores a las obsevadas. En las simulaciones hechas para cinco años con ambos modelos para el sistema de permisos la biomasa disminuye y con concesiones se mantiene al alza con excepción de los años con temperaturas altas, por lo que la mejor opción para preservar la pesquería es otorgar concesiones en comparación con permisos. Iniversidad Autónoma de Baja California 2004-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado application/pdf https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/343 10.7773/cm.v30i4.343 Ciencias Marinas; Vol. 30 No. 4 (2004); 547-560 Ciencias Marinas; Vol. 30 Núm. 4 (2004); 547-560 2395-9053 0185-3880 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/343/293
institution Ciencias Marinas
collection OJS
language eng
format Online
author Ramírez-Féliz, E
Manzano-Monroy, HG
spellingShingle Ramírez-Féliz, E
Manzano-Monroy, HG
Modelling the use of two fishery access rights, concessions and licences, in the red sea urchin, Strongylocentrotus franciscanus (Agassiz), fishery at Santo Tomás, Baja California, Mexico
author_facet Ramírez-Féliz, E
Manzano-Monroy, HG
author_sort Ramírez-Féliz, E
title Modelling the use of two fishery access rights, concessions and licences, in the red sea urchin, Strongylocentrotus franciscanus (Agassiz), fishery at Santo Tomás, Baja California, Mexico
title_short Modelling the use of two fishery access rights, concessions and licences, in the red sea urchin, Strongylocentrotus franciscanus (Agassiz), fishery at Santo Tomás, Baja California, Mexico
title_full Modelling the use of two fishery access rights, concessions and licences, in the red sea urchin, Strongylocentrotus franciscanus (Agassiz), fishery at Santo Tomás, Baja California, Mexico
title_fullStr Modelling the use of two fishery access rights, concessions and licences, in the red sea urchin, Strongylocentrotus franciscanus (Agassiz), fishery at Santo Tomás, Baja California, Mexico
title_full_unstemmed Modelling the use of two fishery access rights, concessions and licences, in the red sea urchin, Strongylocentrotus franciscanus (Agassiz), fishery at Santo Tomás, Baja California, Mexico
title_sort modelling the use of two fishery access rights, concessions and licences, in the red sea urchin, strongylocentrotus franciscanus (agassiz), fishery at santo tomás, baja california, mexico
description Various stages of the red sea urchin, Strongylocentrotus franciscanus (Agassiz), fishery were simulated to evaluate the effect of two types of access rights under Mexican law: concessions and licences. The resource biomass was evaluated using the critical depensation and Schaefer models. Each model was evaluated as a static or dynamic system. The parameters required for each model were determined from government data and by generating stochastic numbers using the Monte Carlo method to adjust to a dynamic model. In general, both models predicted catches smaller than those observed. The five-year-period simulation for both models showed a drop in biomass when licences are issued, whereas a similar simulation for concessions resulted in increased biomass, except when high temperatures occurred. Our results suggest that issuing concessions rather than licences is the best option to conserve the fishery.
publisher Iniversidad Autónoma de Baja California
publishDate 2004
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/343
_version_ 1715723957462630400

Ejemplares similares