Probable fishing grounds for anchovy in northern Chile using an expert system

K. Nieto, E. Yánez, CLAUDIO SILVA GALLINATO, M. A. Barbieri

Research output: Contribution to conferencePaperpeer-review

2 Scopus citations

Abstract

Probable fishing grounds (PFG) of anchovy (Engraulis ringens) for the industrial purse seiner fleets in northern Chile (18°21′-24°S) are determined by sea surface temperature (SST) and thermal gradients (TGR) information estimated with NOAA AVHRR data and validated with in situ data. Using a Geographical Information System (GIS), relations between the catch per unit effort (CPUE) and surface environmental variables (SST and TGR) under a spacetemporal approach are analyzed, with data available for the 1987-97 period. With this information and using the Bayesian theory approach and the fuzzy logic, an expert system (PFG model) is developed generating PFG charts. Chlorophyll concentration (Chl) information has been collected for 1999, estimated with SeaWIFS data, which has allowed the first relations to be established between this variable and the CPUE distribution, which will be integrated into the PFG model. The results of the model are validated with information compiled during 1999.

Original languageEnglish
Pages2985-2987
Number of pages3
StatePublished - 1 Dec 2001
Event2001 International Geoscience and Remote Sensing Symposium (IGARSS 2001) - Sydney, NSW, Australia
Duration: 9 Jul 200113 Jul 2001

Conference

Conference2001 International Geoscience and Remote Sensing Symposium (IGARSS 2001)
Country/TerritoryAustralia
CitySydney, NSW
Period9/07/0113/07/01

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