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Biology and ecology of bottlenose dolphins (Tursiops truncatus) stranded and sighted at 25°S in the south-western Atlantic Ocean during 1989–2016

Published online by Cambridge University Press:  25 July 2018

Camila Domit Open the ORCID record for Camila Domit [Opens in a new window] ,
Isabela G. Domiciano ,
Matt K. Broadhurst ,
Ana Paula F. R. Bracarense ,
Liana Rosa ,
Gustavo Cechin  and
Paula Nassar
Camila Domit*
Affiliation:
Laboratório de Ecologia e Conservação, Centro de Estudos do Mar (CEM/UFPR), Universidade Federal do Paraná, Cx. Postal 61, CEP. 83.255-000, Pontal do Paraná, PR, Brasil
Isabela G. Domiciano
Affiliation:
Laboratório de Ecologia e Conservação, Centro de Estudos do Mar (CEM/UFPR), Universidade Federal do Paraná, Cx. Postal 61, CEP. 83.255-000, Pontal do Paraná, PR, Brasil Laboratório de Patologia Animal, Departamento de Medicina Veterinária Preventiva, Universidade Estadual de Londrina, Londrina, PR, Brasil
Matt K. Broadhurst
Affiliation:
New South Wales Department of Primary Industries, Fisheries Conservation Technology Unit, National Marine Science Centre, PO Box 4321, Coffs Harbour, NSW 2450, Australia Marine and Estuarine Ecology Unit, School of Biological Sciences, University of Queensland, Brisbane, QLD 4072, Australia
Ana Paula F. R. Bracarense
Affiliation:
Laboratório de Patologia Animal, Departamento de Medicina Veterinária Preventiva, Universidade Estadual de Londrina, Londrina, PR, Brasil
Liana Rosa
Affiliation:
Laboratório de Ecologia e Conservação, Centro de Estudos do Mar (CEM/UFPR), Universidade Federal do Paraná, Cx. Postal 61, CEP. 83.255-000, Pontal do Paraná, PR, Brasil
Gustavo Cechin
Affiliation:
Laboratório de Ecologia e Conservação, Centro de Estudos do Mar (CEM/UFPR), Universidade Federal do Paraná, Cx. Postal 61, CEP. 83.255-000, Pontal do Paraná, PR, Brasil
Paula Nassar
Affiliation:
Laboratório de Ecologia e Conservação, Centro de Estudos do Mar (CEM/UFPR), Universidade Federal do Paraná, Cx. Postal 61, CEP. 83.255-000, Pontal do Paraná, PR, Brasil
*
Correspondence should be addressed to: Camila Domit Laboratório de Ecologia e Conservação, Centro de Estudos do Mar (CEM/UFPR), Universidade Federal do Paraná, Cx. Postal 61, CEP. 83.255-000, Pontal do Paraná, PR, Brasil email: camila.lec@ufpr.br
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Abstract

Historical strandings and sightings (1989–2016) of Tursiops truncatus at 25oS in the south-western Atlantic Ocean (Paraná, Brazil) were assessed to (1) investigate temporal fluctuations; and (2) quantify biological, ecological and health parameters of regional populations. In total, 57 T. truncatus carcasses in mostly advanced stages of decomposition (~80% of all specimens) were recorded. Standardized temporal strandings (per observational effort) varied considerably and with no clear annual relationship beyond a peak in 2007, but there were consistently more strandings in winter/spring (74%) than summer/autumn (26%). While there was uncertainty over age estimation (i.e. not available for the population), individuals classified as juveniles/subadults were more frequent (80%) than calves (14%) and adults (6%). Of 28 carcasses assessed, 27 showed a positive linear relationship between TL and condyle-basal length, while one specimen had a clear southern skull morphotype. Suggestive lesions of Crassicauda sp. were recorded in 77% of assessed skulls and four types of tooth pathologies were observed. Nine individuals were more closely investigated for gross and histopathological alterations and had clear evidence of fishery interactions and various health issues associated with disease and oedema accompanied by alveolar fibrosis. While the regional frequency of T. truncatus strandings was lower than other more vulnerable cetaceans, the absolute numbers (e.g. 15 individuals in 2016) and some uncertainty concerning regional taxonomy are noteworthy, and justify ongoing spatio-temporal monitoring. Further, given the evidence of disease in some specimens, future work should not only encompass rigorous taxonomic assessments, but also health to comprehensively evaluate regional stocks. Small cetacean species are sentinels and their condition could inform ongoing environmental assessments.

Keywords

opportunistic surveysstrandingsskull morphologypathologiesSouth Atlantic Ocean
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 98 , Special Issue 5: Marine Mammals , August 2018 , pp. 1129 - 1140
Copyright
Copyright © Marine Biological Association of the United Kingdom 2018 

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References

REFERENCES

Barreto, A.S. (2017) Growth of the skull of the bottlenose dolphin, Tursiops truncatus, in the Southwest Atlantic Ocean. Latin American Journal of Aquatic Mammals 11, 199–211.Google Scholar
Cardoso, A.C. and Grando, L.J. (2003) Bruxismo X erosão de esmalte e dentina. In Cardoso, A.C. (ed.) Oclusão: Para você e para mim. São Paulo: Santos Livraria e Editora, pp. 60–113.Google Scholar
Carvalho, V.L., Bevilaqua, C.M.L., Iñiguez, A.M., Mathews-Cason, H., Ribeiro, F.B., Pessoa, L.M.B., Meirelles, A.C.O., Borges, J.C.G., Marigo, J., Soares, L. and Silva, F.J.L. (2010) Metazoan parasites of cetaceans off the northeastern coast of Brazil. Veterinary Parasitology 173, 116–122.Google Scholar
Charlton-Robb, K., Gershwin, L., Austin, J., Owen, K. and McKechnie, S. (2011) A new dolphin species, the Burrunan dolphin Tursiops australis sp. nov., endemic to southern Australia coastal waters. PLoS ONE 6, e24047.Google Scholar
Corrêa, M.F.M. (1987) Levantamento e Produtividade da Ictiofauna da Baía de Paranaguá (Paraná – Brasil). MSc thesis. Universidade Federal do Paraná, PR, Brazil. 465 pp.Google Scholar
Costa, A.P.B., Fruet, P., Daura-Jorge, F.G., Simões-Lopes, P.C., Ott, P.H., Valiati, V.H. and Oliveira, L.R. (2015) Bottlenose dolphin communities from the southern Brazilian coast: do they exchange genes or are they just neighbours? Marine and Freshwater Research 66, 1201–1210.Google Scholar
Costa, A.P.B., Rosel, P.E., Daura-Jorge, F.G. and Simões-Lopes, P.C. (2016) Offshore and coastal common bottlenose dolphins of the western South Atlantic face-to-face: what the skull and the spine can tell us. Marine Mammal Science 32, 1433–1457.Google Scholar
Dailey, M. (1979) Parasites as an aid to understanding marine mammal populations. In Geraci, J.R. and St Aubin, D.J. (eds) Biology of marine mammals: insights through stranding. Springfield, VA: National Technical Information Service, pp. 243–244.Google Scholar
Dailey, M. (2001) Parasitic diseases. In Dierauf, L. and Gulland, F.M.D. (eds) CRC handbook of marine mammal medicine: health, disease, and rehabilitation, 2nd edn. Boca Raton, FL: CRC Press, pp. 357–379.Google Scholar
Daura-Jorge, F.G., Cantor, M., Ingram, S.N., Lusseau, D. and Simões-Lopes, P.C. (2012) The structure of a bottlenose dolphin society is coupled to a unique foraging cooperation with artisanal fishermen. Biology Letters 8, 702–705.Google Scholar
Di Beneditto, A.P.M., Ramos, R.M.A., Siciliano, S., dos Santos, R.A., Bastos, G. and Fagundes Netto, E. (2001) Stomach contents of delphinids from Rio de Janeiro, southeastern Brazil. Aquatic Mammals 27, 24–28.Google Scholar
Domiciano, I.G., Domit, C., Broadhurst, M.K., Koch, M.S. and Bracarense, A.P.F.R.L. (2016) Assessing disease and mortality among small cetaceans stranded at a World Heritage Site in southern Brazil. PLoS ONE 11, e0149295.Google Scholar
Domiciano, I.G., Domit, C., Marconde, M.C. and Bracarense, A.P.F.R.L. (2012) Enfermidades e impactos antrópicos em cetáceos no Brasil. Clínica Veterinaria 99, 100–110.Google Scholar
Fruet, P.F., Kinas, P.G., da Silva, K.G., Di Tullio, J.C., Monteiro, D.S., Rosa, L.D., Estima, S.C. and Secchi, E.R. (2012) Temporal trends in mortality and effects of by-catch on common bottlenose dolphins, Tursiops truncatus, in southern Brazil. Journal of the Marine Biological Association of the United Kingdom 92, 1865–1876.Google Scholar
Fruet, P.F., Secchi, E.R., Daura-Jorge, F., Vermeulen, E., Flores, P.A.C., Simões-Lopes, P.C., Genoves, R.C., Laporta, P., Di Tullio, J.C., Freitas, T.R.O., Dalla Rosa, L., Valiati, V.H., Beheregaray, L.B. and Möller, L.M. (2014) Remarkably low genetic diversity and strong population structure in common bottlenose dolphins (Tursiops truncatus) from coastal waters of the Southwestern Atlantic Ocean. Conservation Genetics 15, 879.Google Scholar
Fruet, P.F., Secchi, E.R., Di Tullio, J.C., Simões-Lopes, P.C., Daura-Jorge, F., Costa, A.P.B., Vermeulen, E., Flores, P.A.C., Genoves, R.C., Laporta, P., Beheregaray, L.B. and Möller, L.M. (2017) Genetic divergence between two phenotypically distinct bottlenose dolphin ecotypes suggests separate evolutionary trajectories. Ecology and Evolution 7, 9131–9143.Google Scholar
Geraci, J.R. and Lounsbury, V.J. (2005) Marine mammals ashore: a field guide for strandings, 2nd edn. Baltimore, MD: National Aquarium.Google Scholar
Goldman, C.G., Loureiro, J.D., Quse, V., Corach, D., Calderon, E., Caro, R.A., Boccio, J., Heredia, S.R., Di Carlo, M.B. and Zubillaga, M.B. (2002) Evidence of Helicobacter sp. in dental plaque of captive dolphins (Tursiops gephyreus). Journal of Wildlife Diseases 38, 644–648.Google Scholar
Gonçalves-Araujo, R., De Souza, M.S., Mendes, C.R.B., Tavano, V.M., Pollery, R.C. and Garcia, C.A.E. (2013) Brazil Malvinas confluence: effects of environmental variability on phytoplankton community structure. Journal of Plankton Research 43, 399–415.Google Scholar
Gurjão, L.M., Neto, M.A.A.F., Santos, R.A. and Cascon, P. (2004) Análise de conteúdos estomacais de quatro golfinhos (Cetacea: Delphinidae) encalhados em praias no litoral do Estado do Ceará, Brasil. Revista Biociências 1, 34–45.Google Scholar
Hammond, P.S., Bearzi, G., Bjørge, A., Forney, K.A., Karkzmarski, L., Kasuya, T., Perrin, W.F., Scott, M.D., Wang, J.Y., Wells, R.S. and Wilson, B. (2012) Tursiops truncatus. IUCN Red List of Threatened Species 2012: e.T22563A17347397. Available at http://dx.doi.org/10.2305/IUCN.UK.2012.RLTS.T22563A17347397.en.Google Scholar
Keenan-Bateman, T.F. and McLellan, W.A. (2016) Prevalence and anatomic site of Crassicauda sp. and its use in species identification, in kogiid whales from the mid-Atlantic United States. Marine Mammal Science 32, 868–883.Google Scholar
Lambertsen, R.H. (1985) Taxonomy and distribution of a Crassicauda species (Nematoda: Spirurida) infecting the kidney of the common fin whale (Balaenoptera physalus Linné, 1758). Journal of Parasitology 71, 485–488.Google Scholar
Laporta, P., Fruet, P.F., Siciliano, S., Flores, P.A. and Loureiro, J.D. (2017a) Report of the Working Group on the Biology and Ecology of Tursiops truncatus in the Southwest Atlantic Ocean. Latin American Journal of Aquatic Mammals 11, 62–70.Google Scholar
Laporta, P., Martins, C.C.A., Lodi, L., Domit, C., Di Tullio, J.C. and Vermeulen, E. (2017b) Report of the Working Group on Group on Habitat Use of Tursiops truncatus in the Southwest Atlantic Ocean. Latin American Journal of Aquatic Mammals 11, 47–61.Google Scholar
Loch, C., Grando, L.J., Kieser, J.A. and Simões-Lopes, P.C. (2011) Dental pathology in dolphins (Cetacea: Delphinidae) from the southern coast of Brazil. Diseases of Aquatic Organisms 94, 225–234.Google Scholar
Lodi, L., Domit, C., Laporta, P., Di Tullio, J.C., Martins, C.C.A. and Vermeulen, E. (2017) Report of the Working Group on the Distribution of Tursiops truncatus in the Southwest Atlantic Ocean. Latin American Journal of Aquatic Mammals 11, 29–46.Google Scholar
Lodi, L., Wedekin, L.L., Rossi-Santos, M.R. and Marcondes, M.C. (2008) Movements of the bottlenose dolphin (Tursiops truncatus) in the Rio de Janeiro State, southeastern Brazil. Biota Neotropica 8, 205–209. Out/Dez. ID Artigo: bn00808042008.Google Scholar
López, A. (2007) Respiratory system. In McGavin, M.D. and Zachary, J.F. (eds) Pathologic basis of veterinary disease, 4th edn. St Louis, MO: Mosby Elsevier, pp. 463–558.Google Scholar
Mattos, P., Dalla-Rosa, L. and Fruet, P.F. (2007) Activity budgets and distribution of bottlenose dolphins (Tursiops truncatus) in the Patos Lagoon Estuary, southern Brazil. Latin American Journal of Aquatic Mammals 6, 161–169.Google Scholar
Mead, J.G. and Potter, C.W. (1990) Natural history of bottlenose dolphins along the central Atlantic coast of the United States. In Leatherwood, S. and Reeves, R.R. (eds) The bottlenose dolphin. San Diego, CA: Academic Press, pp. 165–195.Google Scholar
Meirelles, A.C.O., Campos, T.M., Marcondes, M.C.C., Groch, K.R., Souto, L.R.A., Reis, M.S.S., Normande, I., Luna, F.O., Nascimento, L.F., Silva, F.J.L., Vergara-Parente, J.E., Borges, J.C.G., Jesus, A.H., Attademo, F.L.N. and Silva, J.M. Jr (2017) Reports of strandings and sightings of bottlenose dolphins (Tursiops truncatus) in northeastern Brazil and Brazilian oceanic islands. Latin American Journal of Aquatic Mammals 11, 178–190.Google Scholar
Miles, A.E.W. and Grigson, C. (1990) Colyer's variations and diseases of the teeth of animals. Cambridge: Cambridge University Press.Google Scholar
Monteiro-Filho, E.L.A., Bonin, C.A. and Rautenberg, M. (1999) Interações interespecíficas dos mamíferos marinhos na região da Baía de Guaratuba, litoral sul do Estado do Paraná. Biotemas 12, 119–132.Google Scholar
Motta, M.R.A. (2006) Avaliação macroscópica e histopatológica de cetáceos encalhados no litoral do Ceará. MSc thesis. Universidade Estadual do Ceará, Fortaleza, Brasil. 130 pp.Google Scholar
Mouton, M. and Botha, A. (2012) Cutaneous lesions in cetaceans: an indicator of ecosystem status? In Romero, A. and Keith, E.O. (eds) New approaches to the study of marine mammals. Tech Open Science, pp. 123–150. ISBN 978-953-51-0844-3.Google Scholar
Neville, B.W., Damm, D.D., Allen, C.M. and Bouquot, J.E. (1996) Oral and maxillofacial pathology. Journal of Oral and Maxillofacial Surgery 54, 1378.Google Scholar
Ott, P.H., Barreto, A.S., Siciliano, S., Laporta, P., Domit, C., Fruet, P., Dalla Rosa, L., Santos, M.C.O., Meirelles, A.C., Marchesi, M.C., Botta, S., Oliveira, L.R., Wickert, J., Vermeulen, E., Hoffman, L.S., Baracho, C. and Simões-Lopes, P.C. (2017) Reporting of the working group on taxonomy and stock identity of bottlenose dolphins in the Southwest Atlantic Ocean. Latin American Journal of Aquatic Mammals 11, 16–28.Google Scholar
Perrin, W. (1975) Variation of spotted and spinner porpoise (genus Stenella) in the eastern Pacific and Hawaii. Bulletin of the Scripps Institution of Oceanography of the University of California, San Diego 21, 1–206.Google Scholar
Perrin, W.F. and Powers, J.E. (1980) Role of a nematode in natural mortality of spotted dolphin. Journal of Wildlife Management 44, 960–963.Google Scholar
Pichler, H.A., Gray, C.A., Broadhurst, M.K., Spach, H.L. and Nagelkerken, I. (2017) Seasonal and environmental influences on recruitment patterns and habitat usage among resident and transient fishes in a World Heritage Site subtropical estuary. Journal of Fish Biology 90, 396–419.Google Scholar
Pinet, P.R. (2003) Invitation to oceanography, 3rd edn. Sudbury, MA: Jones and Bartlett.Google Scholar
Rocha-Campos, C.C., Câmara, I.G. and Pretto, D.J. (2011) Plano de Ação Nacional para a conservação dos mamíferos aquáticos: pequenos cetáceos. Série Espécies Ameaçadas, 18. Brasília, Brazil: Instituto Chico Mendes de Conservação da Biodiversidade.Google Scholar
Ruoppolo, V. (2003) Patologia comparada de cetáceos e pinípedes. MSc thesis. Universidade de São Paulo, São Paulo, Brasil. 131 pp.Google Scholar
Siciliano, S., Emim-Lima, N.R., Costa, A.F., Rodrigues, A.L.F., Magalhães, F.A., Tosi, C.H., Garri, R.G., Silva, C.R. and Silva, J.S.E. Jr (2008) Revisão do conhecimento sobre os mamíferos aquáticos da costa norte do Brasil. Review of Aquatic Mammals in North Coast of Brazil 66, 381–401.Google Scholar
Siciliano, S., Ramos, R.M.A., Di Beneditto, A.P.M., Santos, M.C.O., Fragoso, A.B., Brito, J.L., Azevedo, A.F., Vicente, A.F.C., Zampirolli, E., Alvarenga, F.S., Barbosa, L. and Lima, N.R.W. (2007) Age and growth of some delphinids of south eastern Brazil. Journal of the Marine Biological Association of the United Kingdom 87, 293–303.Google Scholar
Simoes-Lopes, P. C. and Daura-Jorge, F. G. (2009) Os Parceiros da Sobrevivência: a interação entre botos e pescadores no sul do Brasil. Florianópolis, SC, Brasil: Editora Insular.Google Scholar
Simões-Lopes, P.C. and Fabián, M.E. (1999) Residence patterns and site fidelity in bottlenose dolphins, Tursiops truncatus (Monatagu) (Cetacea, Delphinidae) off southern Brazil. Revista Brasileira de Zoologia 16, 1017–1024.Google Scholar
Simões-Lopes, P.C., Fabian, M.E. and Menegheti, J.O. (1998) Dolphin interactions with the mullet artisanal fishing on southern Brazil: a qualitative and quantitative approach. Revista Brasileira de Zoologia 15, 709–726.Google Scholar
Toledo, G.A. (2013) Variação geográfica em crânios de golfinhos-nariz-de-garrafa, Tursiops Gervais, 1855, no Atlântico Ocidental. PhD thesis. Universidade Federal da Paraíba, João Pessoa, Brazil. 214 pp.Google Scholar
Van Bressem, M-F., Flach, L., Reyes, J.C., Echegaray, M., Santos, M., Viddi, F., Félix, F., Lodi, L. and Van Waerebeek, K. (2015) Epidemiological characteristics of skin disorders in cetaceans from South American waters. Latin American Journal of Aquatic Mammals 10, 20–32.Google Scholar
Wang, J.Y., Chou, L.S. and White, B.N. (2000a) Differences in the external morphology of two sympatric species of bottlenose dolphins (genus Tursiops) in the waters of China. Journal of Mammalogy 81, 1157–1165.Google Scholar
Wang, J.Y., Chou, L.S. and White, B.N. (2000b) Osteological differences between two sympatric forms of bottlenose dolphins (genus Tursiops) in Chinese waters. Journal of Zoology 252, 147–162.Google Scholar
Wells, R.S. and Scott, M.D. (2002) Bottlenose dolphin, Tursiops truncatus and T. aduncus. In Perrin, W.F., Würsig, B. and Thewissen, J.G.M. (eds) Encyclopedia of marine mammals. San Diego, CA: Academic Press, pp. 122–128.Google Scholar
Wickert, J.C., von Eye, S.M., Oliveira, L.R. and Moreno, I.B. (2016) Revalidation of Tursiops gephyreus Lahille, 1908 (Cetartiodactyla: Delphinidae) from the southwestern Atlantic Ocean. Journal of Mammalogy 97, 1728–1737.Google Scholar