Journal
SCIENTIFIC REPORTS
Volume 3, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/srep01332
Keywords
-
Categories
Funding
- Baja Expeditions
- Comision Nacional para el Conocimiento y Uso de la Biodiversidad
- Consejo Nacional de Ciencia y Tecnologia
- Conservation International
- International Community Foundation
- Fondo Mexicano para la Conservacion de la Naturaleza
- Instituto Nacional de Ecologia
- International Council for Bird Preservation
- International Foundation for the Conservation of Birds
- Lindblad Expeditions
- National Geographic Society
- Packard Foundation
- Programa PROMEP (Secretaria de Educacion Publica)
- UC MEXUS
- San Diego Natural History Museum
- Living Desert
- Nature Conservancy
- Unidos para la Conservacion/Agrupacion Sierra Madre
- Universidad Veracruzana
- University of California
- U.S. Fish and Wildlife Service
- Universidad Nacional Autonoma de Mexico
- Walton Family Foundation
- Comunidad y Biodiversidad
Ask authors/readers for more resources
Small pelagic fisheries show wide fluctuations, generally attributed to oceanographic anomalies. Most data on these fisheries come from landings, often reporting sustained catches-per-unit-effort (CPUEs) until a decline occurs. Fishery-independent data are important as management tools. In this study we show that the proportions of Pacific Sardine and Northern Anchovy in the diet of three seabird species (California Brown Pelicans, Heermann's Gulls, and Elegant Terns) nesting in spring in the Gulf of California show significant relationships with CPUEs during the following season in gulls and terns, or during the same season in pelicans. As sardine availability for seabirds declines, CPUEs remain high until the fishery falls, one or two seasons later. A declining proportion of sardines in the seabirds' diet, combined with the status of the Pacific warm-phase anomaly (El Nino), give a reliable forecast of diminishing CPUEs and signals the need to reduce fishing efforts in the ensuing season.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available