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Trophic models and short-term dynamic simulations for benthic-pelagic communities at Banco Chinchorro Biosphere Reserve (Mexican Caribbean): a conservation case

Rodríguez Zaragoza, Fabian Alejandro [autor] | Ortiz, Marco [autor] | Berrios, Fernando [autor] | Campos, L [autor/a] | De Jesús Navarrete, Alberto [autor] | Castro Pérez, José Manuel [autor] | Hernández Flores, Araceli [autora] | García Rivas, María del Carmen [autora] | Fonseca Peralta, Felipe [autor] | Gallegos Aguilar, E [autor/a].
Tipo de material: Artículo en línea Artículo en línea Tema(s): Arrecifes de coral | Relaciones tróficas | Grupo funcional | Ecopath con Ecosim | PescaTema(s) en inglés: Coral reefs | Trophic relationships | Functional group | Ecopath with Ecosim | FishingDescriptor(es) geográficos: Reserva de la Biosfera Banco Chinchorro (Quintana Roo, México) Nota de acceso: Disponible para usuarios de ECOSUR con su clave de acceso En: Community Ecology. volumen 17, número 1 (Jun. 2016), páginas 48-60. --ISSN: 1585-8553Número de sistema: 9992Resumen:
Inglés

Banco Chinchorro is the largest reef in the Mexican Caribbean. Historically, spiny lobster, queen conch and over 20 other reef species have been exploited here. Multispecies intervention management from an ecosystem perspective has been developed in this area; however, an assessment of the effects of such practices on ecosystem health is required. Five quantitative trophic models were constructed using Ecopath with Ecosim. The results show that, in terms of biomass, benthic autotrophs are the dominant group in all communities. Ecosystem Network Analysis indices showed that Cueva de Tiburones was the most mature, developed, complex and healthy subsystem, but, El Colorado and La Baliza were the subsystems most resistant to disturbances. The fisheries mainly concentrate on primary (La Baliza and Cueva de Tiburones sites) and secondary consumers (La Caldera, Chancay, and El Colorado). The greatest propagation of direct and indirect effects, estimated by Mixed Trophic Impacts and Ecosim simulations, were generated by the benthic autotrophs, small benthic epifauna, benthic-pelagic carnivorous fish and benthic carnivorous fish, among others. In contrast, the System Recovery Time showed different patterns among subsystems, indicating several compartments that reduce resilience. Considering the structure, dynamics, trophic functioning and ecosystem health of Banco Chinchorro, its ecological heterogeneity highlights the need for the design of a specific (by subsystem) management strategy, particularly because different species or functional groups present greater sensitivity to human interventions in each community.

Recurso en línea: https://link.springer.com/article/10.1556/168.2016.17.1.7
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Disponible para usuarios de ECOSUR con su clave de acceso

Banco Chinchorro is the largest reef in the Mexican Caribbean. Historically, spiny lobster, queen conch and over 20 other reef species have been exploited here. Multispecies intervention management from an ecosystem perspective has been developed in this area; however, an assessment of the effects of such practices on ecosystem health is required. Five quantitative trophic models were constructed using Ecopath with Ecosim. The results show that, in terms of biomass, benthic autotrophs are the dominant group in all communities. Ecosystem Network Analysis indices showed that Cueva de Tiburones was the most mature, developed, complex and healthy subsystem, but, El Colorado and La Baliza were the subsystems most resistant to disturbances. The fisheries mainly concentrate on primary (La Baliza and Cueva de Tiburones sites) and secondary consumers (La Caldera, Chancay, and El Colorado). The greatest propagation of direct and indirect effects, estimated by Mixed Trophic Impacts and Ecosim simulations, were generated by the benthic autotrophs, small benthic epifauna, benthic-pelagic carnivorous fish and benthic carnivorous fish, among others. In contrast, the System Recovery Time showed different patterns among subsystems, indicating several compartments that reduce resilience. Considering the structure, dynamics, trophic functioning and ecosystem health of Banco Chinchorro, its ecological heterogeneity highlights the need for the design of a specific (by subsystem) management strategy, particularly because different species or functional groups present greater sensitivity to human interventions in each community. eng

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