Proposal for the zoning of the industrial Brachyplatystoma vaillantii fisheries of the North Coast of Brazil and the influence of climatic factors on the fluctuations in the abundance of the species
| Autor: | PAMELLA O. DA COSTA, IVAN F. JÚNIOR, EDUARDO T. PAES, FÁBIO C.P. RIBEIRO, JÉSSICA A. DA SILVA, DEUSILENE C. DOS SANTOS, ISRAEL H.A. CINTRA |
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| Rok vydání: | 2022 |
| Předmět: |
Conservation of Natural Resources
Multidisciplinary Amazon rainforest business.industry Science Fishing Fisheries Distribution (economics) Latitude Fishery Geography industrial fishing Rivers Abundance (ecology) Brachyplatystoma vaillantii fishery management Animals Fisheries management Zoning business Amazon PREPS vessel logging system Brazil Catfishes |
| Zdroj: | Anais da Academia Brasileira de Ciências, Vol 94, Iss 1 (2021) |
| ISSN: | 1678-2690 0001-3765 |
| Popis: | The present study was based on the analysis of 10,467 trawls of the industrial piramutaba (Brachyplatystoma vaillantii) fishing fleet of the Brazilian state of Pará, which were mapped by onboard GPS loggers (between February 2008 and September 2011) and the PREPS data from 40 vessels which were tracked by this system between 2008 and 2011. The variation in the mean monthly CPUE, based on Lomb’s periodogram, revealed a well-defined and constant cycle with a duration of approximately one year. Three environmental factors influenced this cycle. The El Niño 3.4 index had a negative correlation with the CPUE of the piramutaba fishery, with a time lag of 15 months, while monthly rainfall and the mean discharge of the Amazon River correlated strongly (r=0.89 and 0.87, respectively; p |
| Databáze: | OpenAIRE |
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