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http://hdl.handle.net/10553/122264
Title: | Evaluation of the bait crabs resources exploited by shellfish gathering in the Canary islands | Authors: | Guerra Marrero, Airam Couce-Montero, Lorena Espino Ruano, Ana Jiménez-Alvarado, David Castro Hernández, José Juan |
UNESCO Clasification: | 3105 Peces y fauna silvestre 531201 Agricultura, silvicultura, pesca 240114-2 Taxonomía animal. Invertebrados no insectos |
Keywords: | CPUE Fishing effort Assessment Reproductive seasons |
Issue Date: | 2023 | Publisher: | Servicio de Publicaciones y Difusión Científica de la Universidad de Las Palmas de Gran Canaria (ULPGC) | Conference: | International Symposium on Artisanal and Recreational Fishing in Islands Systems (ISARFIS 2022) | Abstract: | The assessment of populations of the bait crabs Xantho spp., Pachygrapsus spp. and Percnon gibbesi is carried out for the first time for Gran Canaria Island in order to establish their current status. Their respective reproductive periods are described and, according to this, is proposing a modification of the temporary closures of the gathering fishery. The study analysed 3 shellfish areas, at south, east and north of the island. The catch per unit of effort (CPUE) values for Pachygrapsus spp. and Percnon gibbesi were the highest in the north (81.88±67.66 and 26.69±32.63 individuals/hour/gatherer, respectively). However, the highest values for Xantho spp. were obtained in the east coast (27.13±19.92 individuals/hour/gatherer). To establish a correct estimation of the CPUEs by areas, season and fishing effort, a Generalized Additive Model (GAM) was applied to estimate the fishing pressure on this crab species in each area and globally. | URI: | http://hdl.handle.net/10553/122264 | ISBN: | 978-84-9042-479-7 | Source: | Abstracts International Symposium on Artisanal and Recreational Fishing in Islands Systems (ISARFIS 2022) / coordinación, María Esther Torres Padrón, p. 13 |
Appears in Collections: | Ponencias |
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