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Distribution and population structure of the pelagic stingray, Pteroplatytrygon violacea (Dasyatidae), in the south-western Atlantic

Published online by Cambridge University Press:  23 October 2008

Rodrigo Forselledo ,
Maite Pons ,
Philip Miller  and
Andrés Domingo
Rodrigo Forselledo
Affiliation:
Recursos Pelágicos, Dirección Nacional de Recursos Acuáticos, Constituyente 1497, CP 11200 Montevideo, Uruguay
Maite Pons
Affiliation:
Recursos Pelágicos, Dirección Nacional de Recursos Acuáticos, Constituyente 1497, CP 11200 Montevideo, Uruguay
Philip Miller
Affiliation:
Recursos Pelágicos, Dirección Nacional de Recursos Acuáticos, Constituyente 1497, CP 11200 Montevideo, Uruguay
Andrés Domingo
Affiliation:
Recursos Pelágicos, Dirección Nacional de Recursos Acuáticos, Constituyente 1497, CP 11200 Montevideo, Uruguay
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Abstract

The present study analyses the spatial and temporal distribution of the pelagic stingray (Pteroplatytrygon violacea) in the south-western Atlantic Ocean, based on data collected between April 1998 and March 2006 by the National Observers Program of the Uruguayan Tuna Fleet. During this period, data were recorded on 51 commercial fishing trips, in which a total of 2 306 851 hooks were set and 2740 stingrays captured. Of these, the sex was determined for 1329 individuals and the size for 944. The average disc width was 47 ± 8 cm (range: 24–82 cm) for females and 44 ± 5 cm (range: 28–84 cm) for males. The results indicate that the species seems to prefer warm temperate and tropical waters. There were no capture records in waters at <15.3 °C. The data collected suggest a mating season in late spring with a gestation period of 2 to 4 months and births occurring during late summer and early autumn. The increasing bycatch of this ovoviviparous species in pelagic longline fisheries, with an unknown survival rate after discard, coupled to its low reproductive potential, call for better monitoring in order to accurately determine its current conservation status.

Keywords

Pelagic stingrayCPUEDistributionReproductionSW Atlantic Ocean
Type
Research Article
Information
Aquatic Living Resources , Volume 21 , Issue 4 , October 2008 , pp. 357 - 363
Copyright
© EDP Sciences, IFREMER, IRD, 2008

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References

Acha, E.M., Mianzan, H.W., Guerrero, R.A., Favero, M., Bava, J., 2004, Marine fronts at the continental shelves of austral South America. Physical and ecological processes. J. Mar. Syst. 44, 83–105.
Bañón, R., Casas, J.M., Piñeiro, C.G., Covelo, Y.M., 1997, Capturas de peces de afinidades tropicales en aguas Atlánticas de Galicia (Noroeste de la península Ibérica). Bol. Inst. Esp. Oceanogr. 13, 57–66.
Bañón, R., 2000, Présence de Pteroplatytrygon violacea (Myliobatiformes, Dasyatidae) dans les eaux du golfe de Gascogne (Nord-Est Atlantique). Ann. Soc. Charent. Marit. 8, 1069–1074.
Bigelow, H.B., Schroeder, W.C., 1962, Fishes of the Western North Atlantic. Sears Found. Mar. Res. 1, 1–576.
Compagno L.J.V., 2001, Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Volume 2. Bullhead, mackerel and carpet sharks (Heterodontiformes, Lamniformes and Orectolobiformes). FAO Species Catalogue for Fishery Purposes. 2. Rome, FAO. 2001. 269p.
Domingo, A., Menni, R.C., Forselledo, R., 2005, Bycatch of the pelagic ray Dasyatis violacea in Uruguayan longline fisheries and aspects of distribution in the southwestern Atlantic. Scient. Mar. 69, 161–166. CrossRef
Domingo, A., Mora, O., Pons, M., Miller, P., Pereyra, G., 2006, Análisis de la CPUE y la composición de tallas del SWO (Xiphias gladius), capturado por la Flota Uruguaya (2001–2005) en el Atlántico SW. SCRS/2006/118 Col. Vol. Sci. Pap. ICCAT 60, 1953–1963.
Dulvy, N.K., Baum, J.K., Clarke, S., Compagno, L.J.V., Cortés, E., Domingo, A., Fordham, S., Fowler, S., Francis, M.P., Gibson, C., Martinez, J., Musick, J.A., Soldo, A., Stevens, J.D., Valenti, S., 2008, You can swim but you can't hide: the global status and conservation of oceanic pelagic sharks and rays. Aquat. Conserv: Mar. Freshw. Ecosyst. 18, 459-482. CrossRef
Ellis, J.R., 2007, Occurrence of pelagic stingray Pteroplatytrygon violacea (Bonaparte, 1832) in the North Sea. J. Fish Biol. 71, 933–937. CrossRef
Hemida, F., Seridji, R., Ennajar, S., Bradai, M.N., Collier, E., Guelorget, O., Capapé, C., 2003, New observations on the reproductive biology of the pelagic stingray, Dasyatis violacea Bonaparte, 1832 (Chondrichthyes: Dasyatidae) from the Mediterranean Sea. Acta Adriat. 44, 193–204.
Hubbs, C., Ishiyama, R., 1968, Methods for the taxonomic study and description of skates (Rajidae). Copeia 3, 483–491. CrossRef
Menni, R.C., Hazin, F.H.V., Lessa, R.D.T., 1995, Occurrence of the night shark Carcharhinus signatus and the pelagic stingray Dasyatis violacea off northeastern Brazil. Neotropica 41, 105–110.
Menni, R.C., Stehmann, M.F.W., 2000, Distribution, environment and biology of batoid fishes off Argentina, Uruguay and Brazil. A review. Rev. Mus. Arg. Cienc. Nat. n.s. 2, 61–109.
Mollet, H.F., 2002, Distribution of the pelagic stingray, Dasyatis violacea (Bonaparte, 1832), off California, Central America, and worldwide. Mar. Freshw. Res. 53, 525–530. CrossRef
Mollet, H.F., Ezcurra, J.M., O'Sullivan, J.B., 2002, Captive biology of the pelagic stingray, Dasyatis violacea (Bonaparte, 1832). Mar. Freshw. Res. 53, 531–541. CrossRef
Mora, O., Domingo, A., 2006, Informe sobre el Programa de Observadores a bordo de la flota atunera uruguaya (1998–2004). SCRS/2005/069 Col. Vol. Sci. Pap. ICCAT 59, 559–607.
Neer J.A., 2008, The Biology and Ecology of the Pelagic Stingray, Pteroplatytrygon violacea (Bonaparte, 1832). In: Camhi M., Pikitch E.K. and Babcock E. (Eds.). Sharks of the open Ocean. Blackwell Scientific UK.
Nion H., 1999, La pesquería de Tiburones en el Uruguay, con especial referencia al cazón (Galeorhinus galeus Linnaeus, 1758). In: Shotton R. (Ed.) Case studies of the management of elasmobranch fisheries. FAO F.T. Papers No 378, part 1. Roma, FAO. 199, pp. 218–267.
Ribeiro-Prado C.C., Amorim A.F., in press, Fishery biology on pelagic stingray Pteroplatytrygon violacea caught off southern Brazil by longliners settled in São Paulo state (2006–07). SCRS/2007/173 Col. Vol. Sci. Pap. ICCAT.
Sadowsky, V., Amorim, A.F., 1977, Primeiro registro de ocorrência da arraia pelágica Dasyatis violacea (Bonaparte, 1832) nas águas do Atlântico Sul Ocidental. Ciência e Cultura, Supl. Resumos 29, 79 p.
Wilson, D.B., Beckett, J.S., 1970, Atlantic Ocean distribution of the pelagic stingray, Dasyatis violacea. Copeia 4, 696–707. CrossRef