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  • 1
    Publication Date: 2021-05-19
    Description: El cangrejo de tierra Cardisoma guanhumi, (Latreille, 1825) habita en el Parque Nacional Ciénaga de Zapata y constituye un recurso de importancia comercial. Se determinó la densidad media de la población de C. guanhumi en las zonas de captura Guamutal, El Maíz, La Arenera y Bolanio. Se utilizó un método de estimación directa y se muestrearon 11 parcelas de 81 m2 en febrero/2013 para un área total de 748 m2; además, se realizaron muestreos mensuales durante la temporada de captura (mayo, junio y julio del 2013). La densidad media de cuevas varió de 0,52 a 2,23 cuevas/m2, con una media de 1,43 cuevas/m2. La zona de mayor densidad fue La Arenera con 1,81 cuevas/m2 y la menor Bolanio con 0,52 cuevas-m2. El diámetro promedio de las cuevas fue de 10,13 +- 0,34 cm, 7,74 +- 0,56 cm y 5,59 +- 0,30 cm en El Maíz, La Arenera y Guamutal respectivamente. Se observaron diferencias significativas entre los diámetros medios. Los valores de menor diámetro en Guamutal refuerzan la hipótesis de que esta constituye una zona de reclutamiento. La talla media del cangrejo disminuye a medida que transcurre la corrida. La captura posee un esquema de "Libre Acceso" y por ello se considera al cangrejo explotado intensamente, con disminución de la talla media de captura e incremento de ejemplares por debajo de la talla mínima legal. La presencia de cangrejos está sociada a los mangles Laguncularia racemosa y Conocarpus erectus. La fauna asociada a C. guanhumi la constituyen cangrejos ermitaños (Eupagurus sp.), cocodrilos (Crocodylus rhombifer) y perros jíbaros (Canis familiares).
    Description: At the National Park, Cienaga de Zapata inhabits the land crab (Cardisoma guanhumi, Latreille, 1825) constituting a resource of commercial importance. To determinate the average density of the population in the catchment areas Guamutal, El Maíz and La Arenera, it was used and indirect method; it were sampled 11 locations with 81 m². Also there were done monthly samples to the capture during the capture season. The caves average density varied from 0.52 to 2.23 caves/m², with an overall average of 1.43 caves/m². The area most densely populated was La Arenera with 1.81 caves/m² and the lower was Bolanio with 0.52 caves/m². The average diameter of the caves was 10,13 ± 0,34 cm, 7,74 ± 0,56 cm and 5,59 ± 0,30 cm in El Maíz, La Arenera and Guamutal respectively. There is significant differences between the mean diameters. The presence of small diameter caves in Guamutal reinforce the hypothesis that this is the main area of recruitment. The crab average size decreases along the capture season. His capture has a "Free Access" scheme and crab is considered as intensely exploited. The percentage of specimens below the legal minimum size has been increased and therefor the average size has decresead. The crabs presence is associated with gender mangroves, Laguncularia racemosa and Conocarpus erectus. In the fauna associated with C. guanhumi there were observed the hermit crabs (Eupagurus sp.), crocodiles (Crocodylus rhombifer) and wild dogs (Canis familiaris).
    Description: Published
    Keywords: Cardisoma guanhumi ; Densidad de población ; Diámetro de cuevas ; Flora y fauna asociada ; Population density ; Caves diameter ; Flora and fauna associated
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.110-124
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