End-to-end modeling for an ecosystem approach to fisheries in the Humboldt Current System
This work represents an original contribution to the methodology for ecosystem models' development as well as the rst attempt of an end-to-end (E2E) model of the Northern Humboldt Current Ecosystem (NHCE). The main purpose of the developed model is to build a tool for ecosystem-based management...
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| Tipo de recurso: | tesis doctoral |
| Fecha de publicación: | 2014 |
| País: | Perú |
| Institución: | Superintendencia Nacional de Educación Superior Universitaria |
| Repositorio: | Registro Nacional de Trabajos conducentes a Grados y Títulos - RENATI |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.sunedu.gob.pe:20.500.14366/2564 |
| Acceso en línea: | https://hdl.handle.net/20.500.14366/2564 |
| Access Level: | acceso abierto |
| Palabra clave: | Pesquería Ecosistemas marinos Corrientes oceánicas Corriente de Humboldt https://purl.org/pe-repo/ocde/ford#4.01.03 |
| Sumario: | This work represents an original contribution to the methodology for ecosystem models' development as well as the rst attempt of an end-to-end (E2E) model of the Northern Humboldt Current Ecosystem (NHCE). The main purpose of the developed model is to build a tool for ecosystem-based management and decision making, reason why the credibility of the model is essential, and this can be assessed through confrontation to data. Additionally, the NHCE exhibits a high climatic and oceanographic variability at several scales, the major source of interannual variability being the interruption of the upwelling seasonality by the El Ni~no Southern Oscillation, which has direct e ects on larval survival and sh recruitment success. Fishing activity can also be highly variable, depending on the abundance and accessibility of the main shery resources. This context brings the two main methodological questions addressed in this thesis, through the development of an end-to-end model coupling the high trophic level model OSMOSE to the hydrodynamics and biogeochemical model ROMS-PISCES: i) how to calibrate ecosystem models using time series data and ii) how to incorporate the impact of the interannual variability of the environment and shing. |
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