Using fisher’s knowledge to estimate catch and effort in the large-scale octopus fishery on the eastern Campeche Bank (Mexico, NW Atlantic)
| Autor: | Otilio Avendaño, Iván Velázquez-Abunader, Francisco Rocha, Ángel Guerra |
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| Přispěvatelé: | Consejo Nacional de Ciencia y Tecnología (México), Avendaño, Otilio [0000-0001-7644-8993], Velázquez-Abunader, Iván [0000-0003-3216-2007], Rocha, Francisco [0000-0001-6821-7394], Guerra, Ángel [0000-0001-6716-3646], Avendaño, Otilio, Velázquez-Abunader, Iván, Rocha, Francisco, Guerra, Ángel |
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
2401.19 Zoología Marina
Fishery statistics catch and catch per unit effort estimates estimación de capturas y capturas por unidad de esfuerzo banco de Campeche Campeche Bank 5312.01 Agricultura Silvicultura Pesca 3105.06 Técnicas Pesqueras Aquatic Science NW Atlantic Oceanography fishery statistics estadística pesquera survey methods Octopus americanus Catch and catch per unit effort estimates Survey methods Atlántico occidental método de encuestas Octopus maya |
| Zdroj: | Scientia Marina; Vol. 86 No. 3 (2022); e037 Scientia Marina; Vol. 86 Núm. 3 (2022); e037 Digital.CSIC. Repositorio Institucional del CSIC instname Scientia Marina Consejo Superior de Investigaciones Científicas (CSIC) |
| ISSN: | 0214-8358 1886-8134 |
| DOI: | 10.3989/scimar.2022.86n3 |
| Popis: | 11 pages, 3 tables, 6 figures.-- This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) License The Mayan octopus (Octopus maya) and the American octopus (O. americanus) are the two species that support the octopus fishery on the Campeche Bank. The large-scale fleet catches both species. However, landings are recorded as American octopus in the official statistics, and this causes a problem for the management of the fishery. The large-scale octopus fishery on the Campeche Bank was studied using a model based on data from interviews with skippers. A total of 180 valid interviews were conducted in the base ports of Progreso and Yucalpeten (Yucatan), representing 51.1% of the skippers in the fleet in 2019. This information was used for the first time to estimate catch per unit effort (CPUE) and total catches for each octopus species. The mean CPUE ranged between 50 and 500 kg day-1, with minimums of 10 kg day-1. The mean estimated potential catches ranged from 5069 to 3456 t per year for O. maya and from 4113 to 2805 t per year for O. americanus. The relationship between official landings and estimated catches showed a significant correlation (rxy=0.898). The total estimated catches were on average 20% lower than the official landings of O. americanus. The origin of this discrepancy is discussed The results of this study were obtained as part of the project “Distribución, reproducción, biomasa y patrones de movimiento del pulpo común Octopus vulgaris Cuvier, 1797 en la costa de Yucatán”, with financial support from the Consejo Nacional de Ciencia y Tecnología de México (Grant number 237057) |
| Databáze: | OpenAIRE |
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