Hostname: page-component-cd9895bd7-gxg78 Total loading time: 0 Render date: 2024-12-27T08:46:17.615Z Has data issue: false hasContentIssue false
  • English
  • Français

Marine tucuxi dolphin (Sotalia guianensis) and its interaction with passive gill-net fisheries along the northern coast of the Rio de Janeiro State, Brazil

Published online by Cambridge University Press:  16 April 2009

Jailson Fulgencio de Moura ,
Thais Guimarães Corrêa Sholl ,
Éderson da Silva Rodrigues ,
Sandra Hacon  and
Salvatore Siciliano
Jailson Fulgencio de Moura*
Affiliation:
Grupo de Estudos de Mamíferos Marinhos da Região dos Lagos, Projeto de Monitoramento de Mamíferos Marinhos na Bacia de Campos, CENPES/PETROBRAS & ENSP/FIOCRUZ, Escola Nacional de Saúde Pública, FIOCRUZ, Departamento de Endemias, Rua Leopoldo Bulhões, 1480-6° andar, Manguinhos, Rio de Janeiro, RJ 21041-210 Brazil PPG em Saúde Pública e Meio Ambiente, Escola Nacional de Saúde Pública, ENSP/FIOCRUZ
Thais Guimarães Corrêa Sholl
Affiliation:
Grupo de Estudos de Mamíferos Marinhos da Região dos Lagos, Projeto de Monitoramento de Mamíferos Marinhos na Bacia de Campos, CENPES/PETROBRAS & ENSP/FIOCRUZ, Escola Nacional de Saúde Pública, FIOCRUZ, Departamento de Endemias, Rua Leopoldo Bulhões, 1480-6° andar, Manguinhos, Rio de Janeiro, RJ 21041-210 Brazil PPG em Saúde Pública e Meio Ambiente, Escola Nacional de Saúde Pública, ENSP/FIOCRUZ
Éderson da Silva Rodrigues
Affiliation:
Grupo de Estudos de Mamíferos Marinhos da Região dos Lagos, Projeto de Monitoramento de Mamíferos Marinhos na Bacia de Campos, CENPES/PETROBRAS & ENSP/FIOCRUZ, Escola Nacional de Saúde Pública, FIOCRUZ, Departamento de Endemias, Rua Leopoldo Bulhões, 1480-6° andar, Manguinhos, Rio de Janeiro, RJ 21041-210 Brazil
Sandra Hacon
Affiliation:
Grupo de Estudos de Mamíferos Marinhos da Região dos Lagos, Projeto de Monitoramento de Mamíferos Marinhos na Bacia de Campos, CENPES/PETROBRAS & ENSP/FIOCRUZ, Escola Nacional de Saúde Pública, FIOCRUZ, Departamento de Endemias, Rua Leopoldo Bulhões, 1480-6° andar, Manguinhos, Rio de Janeiro, RJ 21041-210 Brazil
Salvatore Siciliano
Affiliation:
Grupo de Estudos de Mamíferos Marinhos da Região dos Lagos, Projeto de Monitoramento de Mamíferos Marinhos na Bacia de Campos, CENPES/PETROBRAS & ENSP/FIOCRUZ, Escola Nacional de Saúde Pública, FIOCRUZ, Departamento de Endemias, Rua Leopoldo Bulhões, 1480-6° andar, Manguinhos, Rio de Janeiro, RJ 21041-210 Brazil
*
Correspondence should be addressed to: J.F. de Moura, Grupo de Estudos de Mamíferos Marinhos da Região, dos Lagos, Projeto de Monitoramento de Mamíferos Marinhos na, Bacia de Campos, CENPES/PETROBRAS & ENSP/FIOCRUZ, Escola Nacional de Saúde Pública, FIOCRUZ, Departamento de Endemias, Rua Leopoldo Bulhões, 1480-6° andar, Manguinhos, Rio de Janeiro, RJ 21041-210 Brazil email: jailsonfm@gmail.com
Get access

Abstract

During a monitoring programme of stranded marine mammals conducted along the north-east coast of the Rio de Janeiro State, Brazil, we collected marine tucuxi dolphins (Sotalia guianensis) stranded along the beach. We examined the carcasses to identify characteristic evidences of fishery by-catch. From July 2001 to August 2007 43 S. guianensis were found in the study area, with an annual mean of 6.1 stranding events. Dolphins stranded with evidence of fishery interaction (‘by-catch’) occurred in almost every year (annual mean = 2). The majority of the by-catch events occurred during winter and spring. Most of the stranded dolphins were sexually mature. From 43 S. guianensis stranded from 2001 to 2007, 32.5% (N = 14) of these presented evidence of by-catch. Twenty-nine other dolphins did not show clear evidence of by-catch or it could not be evaluated. Most of the by-caught dolphins occurred in the northern zones of the study area where gill-net use is intense.

Keywords

Sotalia guianensisincidental captureRio de Janeirofisherydolphinsgill-netsstrandingsdistributioncoast
Type
Research Article
Information
Marine Biodiversity Records , Volume 2 , January 2009 , e82
Copyright
Copyright © Marine Biological Association of the United Kingdom 2009

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

Borobia, M., Siciliano, S., Lodi, L. and Hoek, W. (1991) Distribution of the South American dolphin Sotalia fluviatilis. Canadian Journal of Zoology 69, 1025–1039.Google Scholar
Campos, E.J.D., Piola, A.R. and Miller, J.L. (1999) Water mass distribution on the shelf and shelf-break upwelling in the Southeast Brazil Bight. American Meteorology Society 1, 446–449.Google Scholar
Carr, T. and Bonde, R.K. (2000) Tucuxi (Sotalia fluviatilis) occurs in Nicaragua, 800 km north of its previously known range. Marine Mammal Science 16, 447–452.CrossRefGoogle Scholar
Di Beneditto, A.P.M. (2003) Interaction between gillnet fisheries and small cetaceans in northern Rio de Janeiro, Brazil: 2001–2002. Latin American Journal of Aquatic Mammals 2, 79–86.Google Scholar
Di Beneditto, A.P.M. and Ramos, R.M.A. (2004) Biology of the marine tucuxi dolphin (Sotalia fluviatilis) in south-eastern Brazil. Journal of the Marine Biological Association of the United Kingdom 84, 1245–1250.CrossRefGoogle Scholar
Di Beneditto, A.P.M., Ramos, R.M.A. and Lima, N.R.W. (1998) Fishing activity in northern Rio de Janeiro State (Brazil) and its relation with small cetaceans. Brazilian Archives of Biology and Technology 41, 296–302.CrossRefGoogle Scholar
Di Beneditto, A.P.M. and Siciliano, S. (2007) Stomach contents of the marine tucuxi dolphin (Sotalia guianensis) from Rio de Janeiro, south-eastern Brazil. Journal of the Marine Biological Association of the United Kingdom 87, 253–254.CrossRefGoogle Scholar
Flores, P.A.C. and Bazzalo, M. (2004) Home ranges and movement patterns of the marine tucuxi dolphin, Sotalia fluviatilis, in Baía Norte, Southern Brazil. Latin American Journal of Aquatic Mammals 3, 37–52.CrossRefGoogle Scholar
Garcia, C. and Trujillo, F. (2004) Preliminary observations on habitat use patterns of the marine tucuxi, Sotalia fluviatilis, in Cispatá Bay, Colombian Caribbean coast. Latin American Journal of Aquatic Mammals 3, 53–59.CrossRefGoogle Scholar
Kastelein, R.A., Haan, D., Staal, C., Nieuwstraten, S.H. and Verboom, W.C. (1995) Entanglement of harbour porpoises (Phocoena phocoena) in fishing nets. In Nachtigall, P.E. et al. (eds) Harbour porpoises: laboratory studies to reduce bycatch. Woerden: De Spil Publishers, pp. 91–156.Google Scholar
Lodi, L. (2003) Tamanho e composição de grupos de boto-cinza, Sotalia guianensis (Van Bénéden, 1864) (Cetacea, Delphinidae), na Baía de Paraty, Rio de Janeiro, Brasil. Atlântica 25, 135–146.Google Scholar
Meirelles, A.C.O., Ribeiro, A.C., Silva, C.P.N. and Soares Filho, A.A. (2006) Records of marine tucuxi dolphins, Sotalia guianensis in the State of Ceará, Northeastern, Brazil. In Siciliano, S. et al. (eds) Workshop on research and conservation of the genus SotaliaRio de Janeiro, Brazil19–23 June 2006.Google Scholar
Monteiro-Neto, C., Alves-Junior, T.T., Ávila, F.J.C., Campos, A.A., Costa, A.F., Silva, C.P.N. and Furtado-Neto, M.A.A. (2000) Impact of fisheries on the tucuxi (Sotalia fluviatilis) and rough-toothed dolphin (Steno bredanensis) populations off Ceará State, Northeastern Brazil. Aquatic Mammals 26, 49–56.Google Scholar
Muehe, D. and Valentini, E. (1998) O litoral do Estado do Rio de Janeiro: uma caracterização físico-ambiental. Rio de Janeiro: FEMAR.Google Scholar
Pugliares, K.R., Bogomolni, A., Touhey, K.M., Herzig, S.M., Harry, C.T. and Moore, M.J. (2007) Marine mammal necropsy: an introductory guide for stranding responders and field biologists. Woods Hole Oceanographic Institution: WHOI Technical Report, 132 pp.CrossRefGoogle Scholar
Reeves, R.R., Smith, B.D., Crespo, E.A. and Ciara, G.N. di (2003) Dolphins, whales and porpoises—2002–2010: conservation action plan for the world's cetaceans. Cambridge and Gland: IUCN/SSC Cetacean Specialist Group.CrossRefGoogle Scholar
Santos, M.C.O., Rosso, S. and Ramos, R.M.A. (2003) Age estimation of marine tucuxi dolphins (Sotalia guianensis) in south-eastern Brazil. Journal of the Marine Biological Association of the United Kingdom 83, 233–236.CrossRefGoogle Scholar
Siciliano, S. (1994) Review of small cetaceans and fishery interactions in coastal waters of Brazil. Report of the International Whaling Commission (Special Issue) 15, 241–250.Google Scholar
Siciliano, S., Brito, J.L. Jr and Azevedo, A.F. (1999) Seasonal occurrence of killer whales (Orcinus orca) in waters of Rio de Janeiro, Brazil. International Journal of Mammalian Biology 64, 251–255.Google Scholar
Siciliano, S., Moreno, I.B., Silva, E.D. and Alves, V.C. (2006) Baleias, botos e golfinhos na Bacia de Campos. Série guia de campo Fauna marinha da Bacia de Campos. Rio de Janeiro: ENSP/FIOCRUZ.Google Scholar
Silva, V.M.F. and Best, R.C. (1996) Sotalia fluviatilis. Mammalian Species 527, 1–7.Google Scholar
Simões-Lopes, P.C. (1988) Ocorrência de uma população de Sotalia fluviatilis (Gervais), 1853, (Cetacea, Delphinidae) no limite sul de sua distribuição, Santa Catarina, Brasil. Biotemas 1, 57–62.Google Scholar