Estudio de las poblaciones de cangrejo utilizadas como carnada en las Islas Canariassituación actual, influencia del marisqueo y tipo de hábitat
- Ana Forner 1
- María Bas-Silvestre 2
- Adrián Martín-Hernández
- Daniel Álvarez-Canali 1
- Neliann Collazo 1
- 1 Universidad de La Laguna (España)
- 2 Universitat de Girona (España)
ISSN: 2659-6644
Año de publicación: 2018
Número: 1
Páginas: 23-36
Tipo: Artículo
Otras publicaciones en: Scientia Insularum: Revista de Ciencias Naturales en islas
Objetivos de desarrollo sostenible
Resumen
Differences in abundance, size and biomass were studied in crab species used as bait for fishing in two locations: Punta del Hidalgo and Finca El Apio, assuming different shellfishing pressure between them. Thus, size, sex and weight of the animals were registered in order to establish a relationship between the abundance and type of habitat. A higher number of Pachygrapsus spp. and Xantho spp. males was collected in both locations. P gibbesi and Pachygrapsus spp. reached higher shell-length values in Punta del Hidalgo, but Xantho spp. had similar length in both areas. The number of ovigerous females was low despite being harvesting ban period. No significant differences in terms of harvesting were found, but it differs according to habitat type. Individually, the genus Pachygrapsus had greater presence in areas dominated by large rocks. It is recommended to continue with the population monitoring of crabs used as bait in and out harvesting ban period and develop studies focused on the biology and ecology of these species.