Depth-Stratified Population Structure of Geryonid Crabs in the Eastern Gulf of Mexico

Lindberg, William J.; Lockhart, Frank

doi:10.2307/1549102

“…In the south Atlantic Bight, Wenner (1990) found a different pattern for this species, with more abundant males between 274 and 549 m depth and females predominating at the deeper sites (733-823 m). On the other hand, Lindberg & Lockhart (1993) showed that, in the Gulf of Mexico, Chaceon fenneri followed the same pattern found in Brazil. In Chaceon notialis, a species fished in more austral waters of the western Atlantic, females were also concentrated in shallower areas (Defeo et al, 1991).…”

supporting

confidence: 51%

“…In the north Atlantic, C. fenneri co-occur with another Chaceon species: C. quinquedens. The bathymetric distributions of these two species overlap, with C. quinquedens occurring mainly at deeper sites (Lindberg & Lockhart, 1993). In Brazil, no other geryonid species are captured in the traps, only the giant isopod Bathynomus giganteus.…”

mentioning

confidence: 96%

Note on the fisheries and biology of the golden crab (Chaceon fenneri) off the northern coast of Brazil

Carvalho

¹

,

Filho

²

,

Lotufo

³

2009

lajar

1

0

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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. Keywords: biology, fishery, Chaceon fenneri, golden crab, Geryonidae, Brazil.Nota sobre la biología y la pesca del cangrejo dorado (Chaceon fenneri) frente a la costa norte de Brasil RESUMEN. 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.

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“…Pinho et al (2001) reported that the situation of Chaceon affinis in the Azores was similar to that described by Wenner (1990) for C. fenneri in the south Atlantic Bight, with males dominating in shallower areas. Gender segregation was also registered for other geryonids (Lindberg & Lockhart, 1993;Pinho et al, 2001;López-Abellán et al, 2002), and it seems that the distribution of these species may be affected by their reproductive cycle or other unknown conditions. In the north Atlantic, C. fenneri co-occur with another Chaceon species: C. quinquedens.…”

mentioning

confidence: 89%

“…Wenner (1990) studied the bathymetric distribution of C. fenneri in the south Atlantic Bight, pointing out that maximum yields (12 crabs trap -1 ) were obtained in the 458-549 m range. Later on, Lindberg & Lockhart (1993) found a larger density of C. fenneri in the Gulf of Mexico between 350 and 550 m, with the largest animals being captured at 350 m depth. More recently, Harper et al (2000) reported that the golden crab fishery in the Gulf of Mexico from 1995 to 2000 targeted mostly sites between 300 and 500 m deep.…”

mentioning

confidence: 96%

“…In southeastern Florida, the oviposition period of golden crabs occurs between August and October, with an incubation time of approximately six months, for hatching in February and March (Erdman & Blake, 1988). Other authors have also reported a bathymetric migration of females related to the reproductive period (Lindberg et al, 1990;López-Abellán et al, 2002). If female golden crabs indeed migrate to shallower areas for oviposition or hatching, the establishment of exclusion depth ranges may constitute an important measure for resource administration.…”

mentioning

confidence: 99%

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Note on the fisheries and biology of the golden crab (Chaceon fenneri) off the northern coast of Brazil

Carvalho¹,

Filho²,

Lotufo³

2009

lajar

View full text Add to dashboard Cite

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. Keywords: biology, fishery, Chaceon fenneri, golden crab, Geryonidae, Brazil.Nota sobre la biología y la pesca del cangrejo dorado (Chaceon fenneri) frente a la costa norte de Brasil RESUMEN. 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.

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The Diseases of Deep‐Water Corals

Rogers¹,

Kemp²,

Davies³

et al. 2015

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Depth-Stratified Population Structure of Geryonid Crabs in the Eastern Gulf of Mexico

Cited by 13 publications

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Note on the fisheries and biology of the golden crab (Chaceon fenneri) off the northern coast of Brazil

Note on the fisheries and biology of the golden crab (Chaceon fenneri) off the northern coast of Brazil

Note on the fisheries and biology of the golden crab (Chaceon fenneri) off the northern coast of Brazil

The Diseases of Deep‐Water Corals

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