Pubblicazione scientifica

Multispecies Fisheries in the Lower Amazon River and Its Relationship with the Regional and Global Climate Variability

FILONE TECNOLOGICO	TEMA
economia circolare e sostenibilità
produzione e cattura
produzione e raccolta
trasformazione e commercializzazione

RIASSUNTO

This paper aims to describe the spatial-temporal variability in catch of the main fishery resources of the Amazon River and floodplain lakes of the Lower Amazon, as well as relating the Catch per Unit of Effort with anomalies of some of the Amazon River, atmosphere and Atlantic Ocean system variables, determining the influence of the environment on the Amazonian fishery resources. Finfish landings data from the towns and villages of the Lower Amazon for the fisheries of three sites (Óbidos, Santarém and Monte Alegre), were obtained for the period between January 1993 and December 2004. Analysis of variance, detrended correspondence analysis, redundancy analysis and multiple regression techniques were used for the statistical analysis of the distinct time series. Fisheries production in the Lower Amazon presents differences between the Amazon River and the floodplain lakes. Production in the Amazon River is approximately half of the one of the floodplain lakes. This variability occurs both along the Lower Amazon River region (longitudinal gradient) and laterally (latitudinal gradient) for every fishing ground studied here. The distinct environmental variables alone or in association act differently on the fishery stocks and the success of catches in each fishery group studied here. Important variables are the flooding events; the soil the sea surface temperatures; the humidity; the wind and the occurence of El Niño-Southern Oscillation events. Fishery productivity presents a large difference in quantity and distribution patterns between the river and floodplain lakes. This variability occurs in the region of the Lower Amazon as well as laterally for each fishery group studied, being dependent on the ecological characteristics and life strategies of each fish group considered here.

DATA

Data di pubblicazione: 17/06/2016

AUTORI

PINAYA WALTER HUGO DIAZ
LOBON-CERVIA FRANCISCO JAVIER
PITA PABLO
BUSS DE SOUZA RONALD
FREIRE JUAN
ISAAC VICTORIA JUDITH

ENTE DI AFFERENZA

LAB OF FISHERIES BIOLOGY & MGMT OF AQUATIC RESOURCES FEDERAL UNIV PARA BELEM PARA BRAZIL
DEPT EVOLUTIONARY ECOLOGY NATL MUSEUM OF NATURAL SCIENCES MADRID SPAIN
DEPT APPLIED ECONOMICS FACULTY OF ECONOMICS & BUSINESS ADMIN UNIV SANTIAGO DE COMPOSTELA SANTIAGO DE COMPOSTELA GALICIA SPAIN
LAB OF METEOROLOGY & SATELLITE OCEANOGRAPHY SOUTHERN REGIONAL CTR SPACE RSCH NATL INST SPACE RSCH SANTA MARIA RIO GRANDE DO SUL BRAZIL
GRUPO DE RECURSOS MARINOS Y PESQUERIAS UNIV A CORUNA A CORUNA GALICIA SPAIN
INST MAURICE LAMONTAGNE CANADA

RIVISTA

PLoS ONE, 11(6), e0157050

IMPACT FACTOR

2,870

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