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Short-beaked common dolphin (Delphinus delphis) occurrence in the Moray Firth, north-east Scotland

Published online by Cambridge University Press:  17 May 2010

Kevin P. Robinson ,
Sonja M. Eisfeld ,
Marina Costa  and
Mark P. Simmonds
Kevin P. Robinson*
Affiliation:
Cetacean Research & Rescue Unit (CRRU), PO Box 11307, Banff AB45 3WB, Scotland, UK
Sonja M. Eisfeld
Affiliation:
Cetacean Research & Rescue Unit (CRRU), PO Box 11307, Banff AB45 3WB, Scotland, UK Whale & Dolphin Conservation Society (WDCS), Brookfield House, 38 St Paul Street, Chippenham, Wiltshire SN15 1LJ, England, UK
Marina Costa
Affiliation:
Cetacean Research & Rescue Unit (CRRU), PO Box 11307, Banff AB45 3WB, Scotland, UK
Mark P. Simmonds
Affiliation:
Whale & Dolphin Conservation Society (WDCS), Brookfield House, 38 St Paul Street, Chippenham, Wiltshire SN15 1LJ, England, UK
*
Correspondence should be addressed to: K.P. Robinson, Cetacean Research & Rescue Unit (CRRU), PO Box 11307, Banff AB45 3WB, Scotland, UK email: kev.robinson@crru.org.uk
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Abstract

The short-beaked common dolphin (Delphinus delphis) is regarded as notably rare or absent from the northern North Sea, but recent evidence suggests a rising frequency of the species in these waters with increasing regional sea temperatures. The following paper documents the presence of D. delphis in the Moray Firth in north-east Scotland and provides the first evidence for the sustained occurrence of these delphinids in this region during the warmer summer months at least. Sightings were collated during systematic surveys of the outer Moray Firth between 2001 and 2009 by independent research teams from the CRRU and WDCS. A total of 13 encounters (with group sizes ranging from 2 to 450+ animals) were recorded with the species across this period, the first of which was in June 2006, with annual encounters being logged thereafter between the months of May and August from 2007 to 2009 inclusive. The animals were recorded in water depths of 51 to 209 m (mean depth: 88.6±42.2 m) and at a distance from shore of 5 to 32 km (mean distance: 16.6±8.0 km). New born calves were observed in June and July, and photographic recaptures of identifiable ‘marked’ adults were determined in 2009. The consistent presence of common dolphins in the outer firth post 2005 and the recapture of recognizable individuals suggest a comparatively recent colonization of these waters by the species over a relatively short period of time. The impacts resulting from such a range expansion upon the existing cetacean community and the subsequent implications for management are discussed.

Keywords

common dolphinsdistributionwater temperatureMoray FirthNorth Searange expansionclimate changeconservation management
Type
Research Article
Information
Marine Biodiversity Records , Volume 3 , June 2010 , e55
Copyright
Copyright © Marine Biological Association of the United Kingdom 2010

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References

REFERENCES

Alter, S.E., Simmonds, M.P. and Brandon, J.R. (2010) Forecasting the consequences of climate-driven shifts in human behaviour on cetaceans. Marine Policy (in press) doi: 10.1016/j.marpool.2010.01.026Google Scholar
Bakker, J. and Smeenk, C. (1990) Dolphins on the Dutch coast: an analysis of stranding records. Lutra 33, 190–191.Google Scholar
de Boer, M.N., Leaper, R., Keith, S. and Simmonds, M.P. (2008) Winter abundance estimates for the common dolphin (Delphinus delphis) in the western approaches of the English Channel and the effect of responsive movement. Journal of Marine Animals and Their Ecology 1, 15–21.Google Scholar
Eisfeld, S.M., Keith, S., Pope, A., Still, D., Dolman, S.J. and Simmonds, M.P. (2009) Outer Moray Firth Cetacean Research 2008 Project Report for the BBC Wildlife Fund. Chippenham: Whale and Dolphin Conservation Society, 23 pp. (available from www.wdcs.org).Google Scholar
Hammond, P.S., Berggren, P., Benke, H., Borchers, D.L., Collet, A., Heide-Jørgensen, M.P., Heimlich, S., Hiby, A.R., Leopold, M.F. and Øien, N. (2002) Abundance of harbour porpoise and other cetaceans in the North Sea and adjacent waters. Journal of Applied Ecology 39, 361–376.CrossRefGoogle Scholar
Macleod, K. (2001) The spatial and temporal distribution of cetaceans off the west coast of Scotland in relation to environmental factors. PhD thesis. University of Greenwich, London, UK.Google Scholar
MacLeod, C.D. (2009). Global climate change, range changes and potential implications for the conservation of marine cetaceans: a review and synthesis. Endangered Species Research 7, 125–136.CrossRefGoogle Scholar
MacLeod, C.D., Bannon, S.M., Pierce, G.J., Schweder, C., Learmonth, J.A., Reid, R.J. and Herman, J.S. (2005) Climate change and the cetacean community of north-west Scotland. Biological Conservation 124, 477–483.CrossRefGoogle Scholar
MacLeod, C.D., Hepworth, K. and Hay, I. (2007a) Northern North Sea cetacean ferry surveys (NORCET): an analysis of cetacean information collected in the first five years (2002–2006). Internal Report, Aberdeen, UK, 13 pp. (available from ).Google Scholar
MacLeod, C.D., Weir, C.R., Pierpoint, C. and Harland, E. (2007b) The habitat preferences of marine mammals west of Scotland (UK). Journal of the Marine Biological Association of the United Kingdom 87, 157–164.CrossRefGoogle Scholar
MacLeod, C.D., Weir, C.R., Santos, M.B. and Dunn, T.E. (2008) Temperature-based summer habitat partitioning between white-beaked and common dolphins around the United Kingdom and Republic of Ireland. Journal of the Marine Biological Association of the United Kingdom 88, 1193–1198.CrossRefGoogle Scholar
Murphy, S. (2004) The biology and ecology of the common dolphin Delphinus delphis in the North-east Atlantic. PhD thesis. University College Cork, Ireland.Google Scholar
Murphy, S., Winship, A., Dabin, W., Jepson, P.D., Deaville, R., Reid, R.J., Spurrier, C., Rogan, E., López, A., González, A.F., Read, F.L., Addink, M., Silva, M., Ridoux, V., Learmonth, J.A., Pierce, G.J. and Northridge, S.P. (2009) Importance of biological parameters in assessing the status of Delphinus delphis. Marine Ecology Progress Series 388, 273–291.CrossRefGoogle Scholar
Reid, J.B., Evans, P.G.H. and Northridge, S.P. (2003) Atlas of cetacean distribution in north-west European waters. Peterborough: Joint Nature Conservation Committee.Google Scholar
Robinson, K.P., Baumgartner, N., Eisfeld, S.M., Clark, N.M., Culloch, R.M., Haskins, G.N., Zapponi, L., Whaley, A.R., Weare, J.S. and Tetley, M.J. (2007) The summer distribution and occurrence of cetaceans in the coastal waters of the outer southern Moray Firth in northeast Scotland (UK). Lutra 50, 19–30.Google Scholar
Robinson, K.P., Tetley, M.J. and Mitchelson-Jacob, E.G. (2009) The distribution and habitat use of coastally occurring minke whales (Balaenoptera acutorostrata) in northeast Scotland. Journal of Coastal Conservation 13, 39–48.CrossRefGoogle Scholar
Weir, C.R., MacLeod, C.D. and Calderan, S.V. (2009) Fine-scale habitat selection by white-beaked and common dolphins in the Minch (Scotland, UK): evidence for interspecific competition or coexistence? Journal of the Marine Biological Association of the United Kingdom 89, 951–960.CrossRefGoogle Scholar