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Note on the fisheries and biology of the golden crab (Chaceon fenneri) off the northern coast of Brazil Nota sobre la biología y la pesca del cangrejo dorado (Chaceon fenneri) frente a la costa norte de Brasil

Authors: Tiago Barros Carvalho; Ronaldo Ruy de Oliveira Filho; Tito Monteiro da Cruz Lotufo;

Note on the fisheries and biology of the golden crab (Chaceon fenneri) off the northern coast of Brazil Nota sobre la biología y la pesca del cangrejo dorado (Chaceon fenneri) frente a la costa norte de Brasil

Abstract

The occurrence of golden crabs (Chaceon fenneri) off the northern coast of Brazil was first reported in 2001. Since then, a few companies and boats have exploited this resource. In the state of Ceará, one company has been fishing for these crabs with a single boat since 2003. The production and fishing effort of this company indicated a decrease in the number of trips and total catches per year. Data collected on one trip in 2006 showed that the CPUE was highest at over 650 m depth. As registered for other geryonid crabs, C. fenneri was segregated by sex along the northern slope of Brazil. Male crabs were significantly larger than females, presenting an isometric relationship between carapace width and length and an allometric relationship between carapace width and body weight.La presencia de cangrejos dorados (Chaceon fenneri) frente a la costa norte de Brasil fue primeramente descrita en 2001. Desde entonces, algunas embarcaciones y compañías se han dedicado a explotar este recurso. En el Estado de Ceará, una sola compañía ha estado pescando estos crustáceos desde el año 2003 con una sola embarcación. Se presenta la producción y esfuerzo pesquero aplicado por esa compañía, indicando la disminución en el número de viajes y captura total por año. Registros recolectados en un viaje realizado el 2006 muestran que los mayores valores de CPUE se obtienen a profundidades mayores de 650 m. Al igual que lo registrado en otros Geryonidae, agregaciones por sexo se determinaron en C fenneri a lo largo del talud en la región norte de Brasil. Los machos fueron significativamente más grandes que las hembras, presentando una relación isométrica entre el ancho y longitud del caparazón; como también, una relación alométrica entre el ancho y el peso.

Keywords

biology, QH301-705.5, Brasil, SH1-691, GC1-1581, cangrejo dorado, Oceanography, Chaceon fenneri, fishery, Geryonidae, Aquaculture. Fisheries. Angling, biología, pesca, Biology (General), golden crab, Brazil

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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