Hostname: page-component-586b7cd67f-rdxmf Total loading time: 0 Render date: 2024-11-28T04:32:05.095Z Has data issue: false hasContentIssue false

Individual movements between local coastal populations of bottlenose dolphins (Tursiops truncatus) in the northern and eastern Black Sea

Published online by Cambridge University Press:  15 September 2016

Elena Gladilina
Affiliation:
Schmalhausen Institute of Zoology, National Academy of Sciences of Ukraine, 15 Bogdan Khmelnytskyi Street, Kiev, 01601, Ukraine
Olga Shpak
Affiliation:
A. N. Severtsov Institute of Ecology and Evolution of Russian Academy of Sciences, 33 Leninsky Avenue, Moscow, 119071, Russia Marine Mammal Council, 36 Nakhimovsky Avenue, Moscow, 117218, Russia
Valentin Serbin
Affiliation:
Ukrainian Society for the Protection of Birds, 65 Glushkova Avenue, Kiev, 01103, Ukraine
Anna Kryukova
Affiliation:
11/2 Akademika Glushko Avenue, Odessa, 65113, Ukraine
Dmitry Glazov
Affiliation:
A. N. Severtsov Institute of Ecology and Evolution of Russian Academy of Sciences, 33 Leninsky Avenue, Moscow, 119071, Russia Marine Mammal Council, 36 Nakhimovsky Avenue, Moscow, 117218, Russia
Pavel Gol'din*
Affiliation:
Schmalhausen Institute of Zoology, National Academy of Sciences of Ukraine, 15 Bogdan Khmelnytskyi Street, Kiev, 01601, Ukraine
*
Correspondence should be addressed to: P. Gol'din, Schmalhausen Institute of Zoology, National Academy of Sciences of Ukraine, 15 Bogdan Khmelnytskyi Street, Kiev, 01601, Ukraine email: [email protected]

Abstract

The Black Sea subspecies of the bottlenose dolphin (Tursiops truncatus ponticus) is threatened and has a small range. Its population structure is little known: it possibly includes a few local coastal populations. We assessed connectivity between coastal groupings in six localities along 800 km of the coastline based on records of photo-identified animals between 2004 and 2014. Abundance of these groupings, as estimated, ranged between 76 and 174 individually distinctive dolphins. In total, there were 350 identified individuals, of which 91 (26%) were resighted within the same areas. However, only three cases of individual movements between local coastal populations were recorded at the distances between 135 and 325 km. Therefore, despite the absence of physical barriers, the coastal Black Sea population is fragmented into numerous resident or locally migrating groupings with site fidelity. These local populations are loosely connected to each other with rare movements between them. This fragmentation can be a factor contributing to short-term fluctuations in abundance of Black Sea bottlenose dolphins and their decline in some localities, despite the potentially high population growth rate.

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 2016 

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

Baird, R.W., Gorgone, A.M., McSweeney, D.J., Ligon, A.D., Deakos, M.H., Webster, D.L., Schorr, G.S., Martien, K.K., Salden, D.R. and Mahaffy, S.D. (2009) Population structure of island-associated dolphins: evidence from photo-identification of common bottlenose dolphins (Tursiops truncatus) in the main Hawaiian Islands. Marine Mammal Science 25, 251274.Google Scholar
Bearzi, G., Agazzi, S., Bonizzoni, S., Costa, M. and Azzellino, A. (2008) Dolphins in a bottle: abundance, residency patterns and conservation of bottlenose dolphins Tursiops truncatus in the semi-closed eutrophic Amvrakikos Gulf, Greece. Aquatic Conservation: Marine and Freshwater Ecosystems 18, 130146.Google Scholar
Bearzi, G., Bonizzoni, S. and Gonzalvo, J. (2011) Mid-distance movements of common bottlenose dolphins in the coastal waters of Greece. Journal of Ethology 29, 369374.Google Scholar
Bearzi, G., Notarbartolo di Sciara, G. and Politi, E. (1997) Social ecology of bottlenose dolphins in the Kvarnerić (northern Adriatic Sea). Marine Mammal Science 13, 650668.CrossRefGoogle Scholar
Belkovich, V.M. (1978) Behaviour and bioacoustics of dolphins. Moscow: Institute of Oceanology.Google Scholar
Bushuev, S.G. (2002) Principal results of the aerial observations of the Black Sea dolphins in 1970s–80s. In Belkovich, V.M. (ed.) Marine mammals of holarctic. Moscow: KMK, pp. 6061.Google Scholar
Carnabuci, M., Schiavon, G., Bellingeri, M., Fossa, F., Paoli, C., Vassallo, P. and Gnone, G. (2016) Connectivity in the network macrostructure of Tursiops truncatus in the Pelagos Sanctuary (NW Mediterranean Sea): does landscape matter? Population Ecology 58, 249264.Google Scholar
Caughley, G. (1977) Analysis of vertebrate populations. Chichester: John Wiley & Sons Ltd, pp. 1234.Google Scholar
Chapman, D.G. (1951) Some properties of the hypergeometric distribution with applications to zoological sample censuses. University of California Publications on Statistics 1, 131160.Google Scholar
Defran, R.H., Weller, D.W., Kelly, D.L. and Espinosa, M.A. (1999) Range characteristics of Pacific coast bottlenose dolphins (Tursiops truncatus) in the Southern California Bight. Marine Mammal Science 15, 381393.CrossRefGoogle Scholar
Duffield, D.A., Ridgway, S.H. and Cornell, L.H. (1983) Haematology distinguishes coastal and offshore forms of dolphins (Tursiops). Canadian Journal of Zoology 61, 930933.CrossRefGoogle Scholar
Gaspari, S., Holcer, D., Mackelworth, P., Fortuna, C., Frantzis, A., Genov, T., Vighi, M., Natali, C., Rako, N., Banchi, E. and Chelazzi, G. (2015) Population genetic structure of common bottlenose dolphins (Tursiops truncatus) in the Adriatic Sea and contiguous regions: implications for international conservation. Aquatic Conservation: Marine and Freshwater Ecosystems 25, 212222.CrossRefGoogle Scholar
Gaspari, S., Scheinin, A., Holcer, D., Fortuna, C., Natali, C., Genov, T., Frantzis, A., Ghelazzi, G. and Moura, A.E. (2015a) Drivers of population structure of the bottlenose dolphin (Tursiops truncatus) in the eastern Mediterranean Sea. Evolutionary Biology 42, 177190.Google Scholar
Genov, T., Angelini, V., Hace, A., Palmisano, G., Petelin, B., Malačič, V., Pari, S. and Mazzariol, S. (2016) Mid-distance re-sighting of a common bottlenose dolphin in the northern Adriatic Sea: insight into regional movement patterns. Journal of the Marine Biological Association of the United Kingdom 96, 909914.Google Scholar
Gladilina, E.V. (2012) Observations of cetaceans (Cetacea) in the waters of Karadag nature reserve and the adjacent waters. 2010. Scientific Notes Taurida V.I. Vernadsky National University. Series: Biology, Chemistry 25, 5159. [In Russian]Google Scholar
Gladilina, E.V. and Gol'din, P.E. (2016) Abundance and summer distribution of a local stock of Black Sea bottlenose dolphins, Tursiops truncatus (Cetacea, Delphinidae), in coastal waters near Sudak. Vestnik Zoologii 50, 4956.CrossRefGoogle Scholar
Gladilina, E.V., Lyashenko, Yu.N. and Gol'din, P.E. (2013) Winter distribution of cetaceans in the Black Sea and adjoining areas in 2012/2013. Scientific Notes Taurida V.I. Vernadsky National University. Series: Biology, Chemistry 26, 3742.Google Scholar
Gnone, G., Bellingeri, M., Dhermain, F., Dupraz, F., Nuti, S., Bedocchi, D., Moulins, A., Rosso, M., Alessi, J., McCrea, R.S. and Azzellino, A. (2011) Distribution, abundance, and movements of the bottlenose dolphin (Tursiops truncatus) in the Pelagos Sanctuary MPA (north-west Mediterranean Sea). Aquatic Conservation – Marine and Freshwater Ecosystems 21, 372388.Google Scholar
Gol'din, P. and Gladilina, E. (2015) Small dolphins in a small sea: age, growth and life-history aspects of the Black Sea common bottlenose dolphin Tursiops truncatus . Aquatic Biology 23, 159166.CrossRefGoogle Scholar
Hammond, P.S. (2010) Estimating the abundance of marine mammals. In Boyd, I.L., Bowen, W.D. and Iverson, S. (eds) Marine mammal ecology and conservation: a handbook of techniques. Oxford: Oxford University Press, pp. 4267.Google Scholar
Holling, C.S. (1973) Resilience and stability of ecological systems. Annual Review of Ecology and Systematics 4, 123.CrossRefGoogle Scholar
Hwang, A., Defran, R.H., Bearzi, M., Maldini, D., Saylan, C.A., Lang, A.R., Dudzik, K.J., Guzon-Zatarain, O.R., Kelly, D.L. and Weller, D.W. (2014) Coastal range and movements of common bottlenose dolphins off California and Baja California, Mexico. Bulletin, Southern California Academy of Sciences 113, 113.Google Scholar
Lusseau, D., Schneider, K., Boisseau, O.J., Haase, P., Slooten, E. and Dawson, S.M. (2003) The bottlenose dolphin community of Doubtful Sound features a large proportion of long-lasting associations. Behavioral Ecology and Sociobiology 54, 396405.CrossRefGoogle Scholar
Mead, J.G. and Potter, C.W. (1995) Recognizing two populations of the bottlenose dolphin (Tursiops truncatus) off the Atlantic coast of North America: morphologic and ecologic considerations. IBI Reports 5, 3144.Google Scholar
Mikhalev, Yu.A. (2005) The peculiarities of the distribution of the bottlenose dolphin, Tursiops truncatus (Cetacea), in the Black Sea. Vestnik Zoologii 39, 2942. [In Russian]Google Scholar
Möller, L.M., Allen, S.J. and Harcourt, R.G. (2002) Group characteristics, site fidelity and seasonal abundance of bottlenose dolphins Tursiops aduncus in Jervis Bay and Port Stephens, south-eastern Australia. Australian Mammalogy 24, 1121.CrossRefGoogle Scholar
Natoli, A., Birkun, A., Aguilar, A., Lopez, A. and Hoelzel, A.R. (2005) Habitat structure and the dispersal of male and female bottlenose dolphins (Tursiops truncatus). Proceedings of the Royal Society of London B: Biological Sciences 272(1569), 12171226.Google ScholarPubMed
Natoli, A., Peddemors, V.M. and Hoelzel, A.R. (2004) Population structure and speciation in the genus Tursiops based on microsatellite and mitochondrial DNA analyses. Journal of Evolutionary Biology 17, 363375.Google Scholar
Robinson, K.P., O'Brien, J.M., Berrow, S.D., Cheney, B., Costa, M., Eisfeld, S.M., Haberlin, D., Mandleberg, L., O'Donovan, M., Oudejans, M.G., Ryan, C., Stevick, P.T., Thompson, P.M. and Whooley, P. (2012) Discrete or not so discrete: long distance movements by coastal bottlenose dolphins in UK and Irish waters. Journal of Cetacean Research and Management 12, 365371.Google Scholar
Roff, D.A. (1974) Spatial heterogeneity and the persistence of populations. Oecologia 15, 245258.Google Scholar
Rosel, P.E., Hansen, L. and Hohn, A.A. (2009) Restricted dispersal in a continuously distributed marine species: common bottlenose dolphins Tursiops truncatus in coastal waters of the western North Atlantic. Molecular Ecology 18, 50305045.Google Scholar
Ross, G.J.B. (1977) The taxonomy of bottlenose dolphins Tursiops species in South Africa waters, with notes on their biology. Annals of the Cape Provincial Museums 11, 135194.Google Scholar
Shcherbak, M.M. (ed). (1994) Red data book of Ukraine, animals. Kiev: Ukrayinska Entsykpoledia, 464 pp. [In Ukrainian]Google Scholar
Shpak, O., Glazov, D., Kryukova, А. and Mukhametov, L. (2006) Using photoidentification for studying seasonal distribution of the Black Sea dolphins along the resort coastline of Big Sochi. In Marine mammals of Holarctic. St Petersburg, pp. 561563. [In Russian]Google Scholar
Sokolov, V.E., Yaskin, V.A. and Yukhov, V.L. (1990) Abundance and distribution of Black Sea dolphins. In 5th Symposium USSR Theriological Society, Volume 3. Moscow, pp. 178–179. [In Russian]Google Scholar
Speakman, T., Zolman, E., Adams, J., Defran, R.H., Laska, D., Schwacke, L., Craigie, J. and Fair, P. (2006) Temporal and spatial aspects of bottlenose dolphin occurrence in coastal and estuarine waters near Charleston, South Carolina. NOAA Technical Memorandum NOS NCCOS 37, 243 pp.Google Scholar
Stolen, M.K. and Barlow, J. (2003) A model life table for bottlenose dolphins (Tursiops truncatus) from the Indian River Lagoon system, Florida, USA. Marine Mammal Science 19, 630649.Google Scholar
Urian, K., Gorgone, A., Read, A., Balmer, B., Wells, R.S., Berggren, P., Durban, J., Eguchi, T., Rayment, W. and Hammond, P.S. (2015) Recommendations for photo-identification methods used in capture-recapture models with cetaceans. Marine Mammal Science 31, 298321.CrossRefGoogle Scholar
Viaud-Martinez, K.A., Brownell, R.L. Jr., Komnenou, A. and Bohonak, A.J. (2008) Genetic isolation and morphological divergence of Black Sea bottlenose dolphins. Biological Conservation 141, 16001611.CrossRefGoogle Scholar
Waring, G.T., Josephson, E., Maze-Foley, K. and Rosel, P.E. (2014) US Atlantic and Gulf of Mexico Marine Mammal Stock Assessments – 2013. NOAA Tech Memo NMFS NE 228, 02543–1026, 475 pp.Google Scholar
Wells, R.S. and Scott, M.D. (1999) Bottlenose dolphin Tursiops truncatus (Montagu, 1821). In Ridgway, S.H. and Harrison, R. (eds) Handbook of marine mammals, Volume 6. The second book of dolphins and the porpoises. San Francisco, CA: Academic Press, pp. 137182.Google Scholar
Wells, R.S., Scott, M.D. and Irvine, A.B. (1987) The social structure of free-ranging bottlenose dolphins. In Genoways, H.H. (ed.) Current mammalogy, Volume 1. New York: Plenum Press, pp. 247305.Google Scholar
Wilson, B., Hammond, P.S. and Thompson, P.M. (1999) Estimating size and assessing trends in a coastal bottlenose dolphin population. Ecological Applications 9, 288300.Google Scholar
Wood, C.J. (1998) Movement of bottlenose dolphins around the south-west coast of Britain. Journal of Zoology 246, 155163.Google Scholar
Würsig, B. and Jefferson, T.A. (1990) Methods of photo-identification for small cetaceans. Report International Whaling Commission 12 (special issue), 4352.Google Scholar
Würsig, B. and Würsig, M. (1977) The photographic determination of group size, composition, and stability of coastal porpoises (Tursiops truncatus). Science 198, 755756.Google Scholar
Yaskin, V.A. and Yukhov, V.L. (1997) Abundance and distribution of Black Sea bottlenose dolphins. In Sokolov, V.E. and Romanenko, E.V. (eds) The Black Sea bottlenose dolphin Tursiops truncatus ponticus: morphology, physiology, acoustics and hydrodynamics. Moscow: Nauka, pp. 1926. [In Russian]Google Scholar