Evidence of overfishing and poor management of Callinectes sapidus (Rathbun, 1896) in Lake Maracaibo, Venezuela
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| Nhiều tác giả: | , |
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| Định dạng: | artículo original |
| Trạng thái: | Versión publicada |
| Ngày xuất bản: | 2019 |
| Miêu tả: | This research was conducted between 2015 and 2018. The objective was to evaluate the effect of blue crab fishery management on the resource sustainability and provide a base for the implementation of corrective measures. Blue crab fishery changed in 2002 when fishermen stopped using fish traps and began using longlines, which rapidly increased successful fishing and significantly reduced size selectivity. A gradual reduction of carapace width and the extraction of immature individuals were evident; growth (L∞) is lower compared to fishery in the Chesapeake, Delaware, and Chetumal Bays, and the Gulf of Mexico, and fishing mortality (F) was significantly high. The exploitation rate (E) equivalent to 0.75 indicates overfishing. Fishermen do not fully respect the current legislation, do not receive financial support, and face personal insecurity. This activity contributes every day less to the family economy. In addition, the government has failed to register data, assess the habitat, or manage the resource. This combination of elements has conditioned current overexploitation and threatened this type of fish. |
| Quốc gia: | Portal de Revistas UNA |
| Tổ chức giáo dục: | Universidad Nacional de Costa Rica |
| Repositorio: | Portal de Revistas UNA |
| Ngôn ngữ: | Español |
| OAI Identifier: | oai:www.revistas.una.ac.cr:article/12064 |
| Truy cập trực tuyến: | https://www.revistas.una.ac.cr/index.php/revmar/article/view/12064 |
| Từ khóa: | management, legislation, fishing mortality, sustainability, size gestión, legislación, mortalidad por pesca, sostenibilidad, talla gestão, legislação, mortalidade por pesca, sustentabilidade, tamanho |