A live-stranding of a Clymene dolphin (Stenella clymene, Gray, 1850) in the Gulf of Venezuela: first record for the southern Caribbean


  • Yurasi Alejandra Briceño Venezuelan Institute for Scientific Research
  • Sonsireé Ramírez Instituto para la Conservación de la Cuenca del Lago de Maracaibo (ICLAM)
  • Jaime Bolaños-Jimenez Asociación Civil Sea Vida
  • Leonardo Sánchez Instituto Venezolano de Investigaciones Científicas
  • Luis Bermúdez-Villapol Dirección Estadal del Ministerio del Poder Popular para el Ecosocialismo (MINEC)
  • Manuel González Ofcina Nacional de Diversidad Biológica (ONDB), Ministerio del Poder Popular para el Ecosocialismo (MINEC)
  • Enrique Narvaez Instituto para la Conservación de la Cuenca del Lago de Maracaibo (ICLAM)
  • Jim Hernández Laboratorio de Piscicultura, Universidad del Zulia
  • Daría Pirela Instituto para la Conservación de la Cuenca del Lago de Maracaibo (ICLAM)




Strandings, Distribution, Stenella clymene, Morphological identification


Clymene dolphin, Stenella clymene, is currently classified as “Least concern” on the UICN Red List. It is distributed in tropical and temperate waters of the Atlantic Ocean, including the Caribbean Sea and the Gulf of Mexico, but its occurrence is majority documented in the Gulf of Mexico, Atlantic coast of the United States and the Brazilian coast. This is the first record of the presence of Clymene dolphin in Venezuela and in Southern Caribbean Sea, an individual live-stranded in the mouth of Lake Maracaibo, in the western Gulf of Venezuela, that died few hours later of event at stranding site. The macroscopic external examination and a necropsy were conducted, revealed no wounds or lacerations produced by anthropogenic interaction. Respiratory failure due to stranding was determined as the cause of death of the animal, but the causes of the stranding could not be determined. The individual was identify as a female adult of Clymene dolphin considering the body coloration pattern, morphological measurements and tooth counts. This event confirms the importance and scientific value of stranding records by providing relevant biological and ecological data contributing to the characterization of the species.


Author Biography

Yurasi Alejandra Briceño, Venezuelan Institute for Scientific Research

PhD candidate in Ecology


Amaral, R., Lovewell, G. Coelho, M., Amato, G. and Rosenbaum, C. (2014) Hybrid speciation in a marine mammal: the Clymene dolphin (Stenella clymene). PLoS one 9(1): e83645. https://doi.org/10.1371/journal.pone.0083645

Davis, W. and Fargion, S. (1996) Distribution and abundance of cetaceans in the north-central and western Gulf of Mexico. OCS Study MMS 96-0027. Prepared by the Texas Institute of Oceanography and the National Marine Fisheries Service. US Department of the Interior, Minerals Management Service, Gulf of Mexico OCS Region, New Orleans, Louisiana. Available from National Technical Information Services, PB96-194436. US Department of Commerce, Springfield, VA 22161, USA.

Fertl, D., Jefferson, T., Moreno, I., Zerbini, A. and Mullin, K. (2003) Distribution of the Clymene dolphin Stenella clymene. Mammal Review 33(3): 253–271. https://doi.org//10.1046/j.1365-2907.2003.00033.x

Jefferson, T. (1995) Distribution, abundance, and some aspects of the biology of cetaceans in the offshore Gulf of Mexico. PhD Thesis. Texas A&M University, College Station. 232 pp.

Jefferson T. (1996) Morphology of the Clymene dolphin (Stenella clymene) in the northern Gulf of Mexico. Aquatic Mammals 22: 35–43.

Jefferson, T. (2009). Clymene dolphin Stenella clymene. Pages 234–236 in Perrin W.F., Würsig, B. and Thewissen, J.G.M. (Eds) Encyclopedia of Marine Mammals. 1ed. Academic Press, London, UK.

Jefferson, T. (2018) Clymene dolphin: Stenella clymene. Pages 197-200 in Würsig, B., Thewissen, J.G.M. and Kovacs, K.M. (Eds) Encyclopedia of Marine Mammals. 3ed. Academic Press, London, UK.

Jefferson, T. and Braulik, G. (2018) Stenella clymene. The IUCN Red List of Threatened Species 2018: e.T20730A50373865. https://dx.doi.org/10.2305/IUCN.UK.2018-.RLTS.T20730A50373865.en

Maze-Foley, K. and Mullin, K. (2007) Cetaceans of the oceanic northern Gulf of Mexico: Distributions, group sizes and interspecific associations. Journal of Cetacean Research and Management 8(2): 203-213.

Moreno, I., Zerbini, A., Danilewicz, D., de Oliveira Santos, M., Simões-Lopes, P., Lailson-Brito Jr, J. and Azevedo, A. (2005) Distribution and habitat characteristics of dolphins of the genus Stenella (Cetacea: Delphinidae) in the southwest Atlantic Ocean. Marine Ecology Progress Series 300: 229-240. https://doi.org/10.3354/meps300229

Mullin, D. and Fulling, L. (2003) Abundance of cetaceans in the southern U.S. North Atlantic Ocean during summer 1998. Fishery Bulletin 101: 603–613. http://fishbull.noaa.gov/1013/11mullin.pdf

Mullin, D. and Fulling, L. (2006) Abundance of cetaceans in the oceanic northern Gulf of Mexico, 1996–2001. Marine Mammal Science 20: 787–807. https://doi.org/10.1111/j.1748-7692.2004.tb01193.x

Norris, K. (1961) Standardized methods for measuring and recording data on the smaller cetaceans. Journal of Mammalogy 42(4): 471-476. https://doi.org/10.2307/1377364

Perrin, W., Mitchell, D., Mead, G., Caldwell, K. and Van Bree, H. (1981) Stenella clymene, a rediscovered tropical dolphin of the Atlantic. Journal of Mammalogy 62(3): 583-598. https://doi.org/10.2307/1380405

Perrin, W. and Mead, J. (1994) Clymene dolphin Stenella clymene (Gray, 1846). Pages 161-171 in Ridgway, R. and Ridgway, S.H. (Eds) Handbook of Marine Mammals, volume 5. Academic Press, London.

Pis-Millán, J., Roselló, E., Morales-Muñiz, A. and Nores, C. (2019) First record of Clymene dolphin (Stenella clymene Gray, 1846) in European waters/Primera cita de delfín de Clímene (Stenella clymene Gray, 1846) en aguas europeas. Galemys 31: 83-88. https://doi.org/10.7325/Galemys.2019.N3

Romero, A., Agudo, I., Green, M. and Notarbartolo di Sciara, G. (2001) Cetaceans of Venezuela: their distribution and conservation status. National Oceanic and Atmospheric Administration Technical Report NMFS 151. 60 pp. http://aquaticcommons.org/2505/1/tr151.pdf

Rodríguez, G. (2000) El Sistema de Maracaibo. 2ed. Instituto Venezolano de Investigaciones Científicas, Caracas, Venezuela.

Weir, C., Coles, P., Ferguson, A., May, D., Baines, M., Figueiredo, I. and Edwards, M. (2014) Clymene dolphins (Stenella clymene) in the eastern tropical Atlantic: distribution, group size, and pigmentation pattern. Journal of Mammalogy 95(6): 1289-1298. https://doi.org/10.1644/14-MAMM-A-115





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