Hostname: page-component-78c5997874-mlc7c Total loading time: 0 Render date: 2024-11-08T13:25:29.170Z Has data issue: false hasContentIssue false

Understanding pelagic stingray (Pteroplatytrygon violacea) by-catch by Spanish longliners in the Mediterranean Sea

Published online by Cambridge University Press:  11 August 2015

José C. Báez*
Affiliation:
Instituto Español de Oceanografía, Centro Oceanográfico de Málaga, Puerto pesquero s/n Fuengirola, Málaga, Spain Investigador asociado de la Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Chile
Guillermo Ortuño Crespo
Affiliation:
Instituto Español de Oceanografía, Centro Oceanográfico de Málaga, Puerto pesquero s/n Fuengirola, Málaga, Spain
Salvador García-Barcelona
Affiliation:
Instituto Español de Oceanografía, Centro Oceanográfico de Málaga, Puerto pesquero s/n Fuengirola, Málaga, Spain
José M. Ortiz De Urbina
Affiliation:
Instituto Español de Oceanografía, Centro Oceanográfico de Málaga, Puerto pesquero s/n Fuengirola, Málaga, Spain
David Macías
Affiliation:
Instituto Español de Oceanografía, Centro Oceanográfico de Málaga, Puerto pesquero s/n Fuengirola, Málaga, Spain
*
Correspondence should be addressed to:J.C. Báez, Instituto Español de Oceanografía, Centro Oceanográfico de Málaga, Puerto pesquero s/n Fuengirola, Málaga, Spain email: [email protected]

Abstract

The pelagic stingray Pteroplatytrygon violacea is known to be a frequent by-catch in longline fisheries worldwide. This study analysed the eco-geographic, technical and temporal parameters that affect pelagic stingray by-catch by the Spanish surface drifting longline fleet that operates in the Mediterranean Sea. Between 2000 and 2013, 3007 longline fishing operations were monitored. Over this period, we recorded 57 574 pelagic stingray by-catches by this fleet. Two gear types were involved in 96.05% of the pelagic stingray by-catch observed: traditional surface longliners targeting swordfish (LLHB) and surface drifting longliners targeting albacore (LLALB). We obtained two statistically significant explanatory models for the two types of gear. In both cases, two of the most important variables were fisheries being sited over the continental shelf and fishing during the summer season. The LLHB explanatory model included the following variables: number of hooks, latitude where setting started, distance between the ends of the longline, and the spring season. Regarding the LLHB, we found an association between the Capture per Unit Effort of pelagic stingray from favourable sets per year and the North Atlantic Oscillation in the previous year.

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 2015 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Báez, J.C., García-Barcelona, S., Mendoza, M., Ortiz De Urbina, J.M., Real, R. and Macías, D. (2014a) Cory's shearwater by-catch in the Mediterranean Spanish commercial longline fishery: implications for management. Biodiversity and Conservation 23, 661681.CrossRefGoogle Scholar
Báez, J.C., Gimeno, L., Gómez-Gesteira, M., Ferri-Yáñez, F. and Real, R. (2013) Combined effects of the Arctic Oscillation and the North Atlantic Oscillation on sea surface temperature in the Alboran Sea. PloS ONE 8, e62201. doi: 10.1371/journal.pone.0062201.CrossRefGoogle ScholarPubMed
Báez, J.C., Real, R., Camiñas, J.A., Torreblanca, D. and Garcia-Soto, C. (2009) Analysis of swordfish catches and by-catches in artisanal longline fisheries in the Alboran Sea (Western Mediterranean Sea) during the summer season. Marine Biodiversity Records 2, e157. doi: 10.1017/S1755267209990856.CrossRefGoogle Scholar
Báez, J.C., Real, R., López-Rodas, V., Costas, E., Salvo, A.E., García-Soto, C. and Flores-Moya, A. (2014b) The North Atlantic Oscillation and the Arctic Oscillation favour harmful algal blooms in SW Europe. Harmful Algae 39, 121126.CrossRefGoogle Scholar
Baum, J., Bianchi, I., Domingo, A., Ebert, D.A., Grubbs, R.D., Mancusi, C., Piercy, A., Serena, F. and Snelson, F.F. (2009) Pteroplatytrygon violacea. In IUCN red list of threatened species. Version 2014.2. Available at: http://www.iucnredlist.org, accessed 15 May 2014.Google Scholar
De Siqueira, A.E. and De Sant'Anna, V.B. (2007) Data on the pelagic stingray, Pteroplatytrygon violacea (Bonaparte, 1832) (Myliobatiformes: Dasyatidae) caught in the Rio de Janeiro coast. Brazilian Journal of Oceanography 55, 323325.CrossRefGoogle Scholar
Di Natale, A., Mangano, A., Navarra, E. and Valastro, M. (1995) Osservazioni sulla pesca dei grandi Scombroidei nei bacini tirrenici e dello Stretto di Sicilia (prosecuzione). Report to Ministry of Agricultural, Food and Forestry Resources, Director General for Fishery and Aquaculture, Rome, pp. 322–329.Google Scholar
Domingo, A., Menni, R.C. and Forselledo, R. (2005) By-catch of the pelagic ray Dasyatis violacea in Uruguayan longline fisheries and aspects of distribution in the southwestern Atlantic. Scientia Marina 69, 161166.CrossRefGoogle Scholar
Domingo, A., Pons, M., Jiménez, S., Miller, P., Barceló, C. and Swimmer, Y. (2012) Circle hook performance in the Uruguayan pelagic longline fishery. Bulletin of Marine Science 8, 499511.CrossRefGoogle Scholar
Ferrari, L.D. and Kotas, J.E. (2013) Hook selectivity as a mitigating measure in the catches of the stingray Pteroplatytrygon violacea (Bonaparte, 1832) (Elasmobranchii, Dasyatidae). Journal of Applied Ichthyology 29, 769774.CrossRefGoogle Scholar
Filanti, T., Megalofonou, P., Petrosino, G. and De Metrio, G. (1986) Incidenza dei selaci nella pesca del pesce spada con long-line nel Golfo di Taranto. Nova Thalassia 8, 667669.Google Scholar
Forselledo, R., Pons, M., Miller, P. and Domingo, A. (2008) Distribution and population structure of the pelagic stingray, Pteroplatytrygon violacea (Dasyatidae), in the south-western Atlantic. Aquatic Living Resources 21, 357363.CrossRefGoogle Scholar
García-Barcelona, S., Macías, D., Alot, E., Estrada, A., Real, R. and Báez, J.C. (2010b) Modelling abundance and distribution of seabird by-catch in the Spanish Mediterranean longline fishery. Ardeola 57, 6578.Google Scholar
García-Barcelona, S., Ortiz de Urbina, J.M., de la Serna, J.M., Alot, E. and Macias, D. (2010a) Seabird by-catch in Spanish Mediterranean large pelagic longline fisheries, 1998–2008. Aquatic Living Resources 23, 363371.Google Scholar
Hosmer, D.W. and Lemeshow, S. (2000) Applied logistic regression, 2nd edn. New York, NY: John Wiley and Sons, pp. 381.CrossRefGoogle Scholar
Hurrell, J.W. (1995) Decadal trends in the North Atlantic Oscillation: regional temperatures and precipitation. Science 269, 676679.CrossRefGoogle ScholarPubMed
Jiménez, S., Abreu, M., Pons, M. and Domingo, A. (2010) Assessing the impact of the pelagic longline fishery on albatrosses and petrels in the Southwest Atlantic. Aquatic Living Resources 23, 4964.CrossRefGoogle Scholar
Lobo, J.M., Jiménez-Valverde, A. and Real, R. (2008) AUC: a misleading measure of the performance of predictive distribution models. Global Ecology and Biogeography 17, 145151.CrossRefGoogle Scholar
Macías, D., García-Barcelona, S., Báez, J.C., de la Serna, J.M. and Ortíz de Urbina, J.M. (2012a) Marine mammal bycatch in Spanish Mediterranean large pelagic longline fisheries, with a focus on Risso's dolphin (Grampus griseus). Aquatic Living Resources 25, 321331.CrossRefGoogle Scholar
Macías, D., Gómez-Vives, M.J. and de la Serna, J.M. (2004) Desembarcos de especies asociadas a la pesquería de palangre de superficie dirigido al pez espada (Xiphias gladius) en el mediterráneo durante 2001 y 2002. Collective Volume Scientific of Papers ICCAT 56, 981986.Google Scholar
Macías, D., Mejuto, J., García, B., Ramos-Cartelle, A., Ariz, J., Delgado De Molina, A., Ramos, L., De La Serna, J.M., García, S., Báez, J.C. and Ortiz De Urbina, J. (2012b) Factors affecting surface longline selectivity. Investigations conducted by the Spanish Institute of Oceanography. Paper presented at Circular Hooks Symposium 2011, 4–6 Mayo, Miami, USA.Google Scholar
Mollet, H.F. (2002) Distribution of the pelagic stingray, Dasyatis violacea (Bonaparte, 1832), off California, Central America, and worldwide. Marine Freshwater Research 53, 525530.CrossRefGoogle Scholar
Orsi Relini, L., Cima, C., Garibaldi, F., Palandri, G., Relini, M. and Torchia, G. (1999) La pesca professionale con i palamiti galleggianti nel “Sautuario dei cetacei” del Mar Ligure: si tratta di attivita’ ecocompatibili? Biologia Marina Mediterranea 6, 100109.Google Scholar
Ottersen, G., Planque, B., Belgrano, A., Post, E., Reid, P.C. and Stenseth, N.C. (2001) Ecological effects of the North Atlantic Oscillation. Oecologia 128, 114.CrossRefGoogle ScholarPubMed
Piovano, S., Simona, C. and Giacoma, C. (2010) Reducing longline bycatch: the larger the hook, the fewer the stingrays. Biological Conservation 143, 261264.CrossRefGoogle Scholar
Real, R., Barbosa, A.M. and Vargas, J.M. (2006) Obtaining environmental favourability functions from logistic regression. Environmental Ecological Statistics 13, 237245.CrossRefGoogle Scholar
Santana-Hernández, H., Espino-Barr, E. and Valdez-Flores, J.J. (2011) Distribución y abundancia relativa de la raya látigo Pteroplatytrygon violacea capturada incidentalmente en el Pacífico central mexicano. Ciencia Pesquera 19, 1322.Google Scholar
Veras, D.P., Branco, I.S.L., Hazin, F.H.V., Wor, C. and Tolotti, M.T. (2009) Preliminary analysis of the reproductive biology of pelagic stingray (Pteroplatytrygon violacea) in the southwestern Atlantic. Collective Volume of Scientific Papers ICCAT 64, 17551764.Google Scholar
Vicente-Serrano, S.M. and Trigo, R.M. (2011) Hydrological, socieconomic and ecological impacts of the North Atlantic Oscillation in the Mediterranean Region. Spain: Advances in Global Change Research, Springer, 236 pp.CrossRefGoogle Scholar
Wilson, P.C. and Beckett, J.S. (1970) Atlantic ocean distribution of the pelagic stingray, Dasyatis violacea . Copeia 4, 696707.CrossRefGoogle Scholar