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Are white-beaked dolphins Lagenorhynchus albirostris food specialists? Their diet in the southern North Sea

Published online by Cambridge University Press:  01 September 2010

Okka E. Jansen*
Affiliation:
Wageningen University, Department of Aquatic Ecology & Waterquality Management, Droevendaalsesteeg 3a, 6708 PB Wageningen, The Netherlands Wageningen IMARES, Department of Ecology, Landsdiep 4, 1797 SZ ‘t Horntje, The Netherlands
Mardik F. Leopold
Affiliation:
Wageningen IMARES, Department of Ecology, Landsdiep 4, 1797 SZ ‘t Horntje, The Netherlands
Erik H.W.G. Meesters
Affiliation:
Wageningen IMARES, Department of Ecology, Landsdiep 4, 1797 SZ ‘t Horntje, The Netherlands
Chris Smeenk
Affiliation:
National Museum of Natural History, PO Box 9517, 2300 RA Leiden, The Netherlands
*
Correspondence should be addressed to: O.E. Jansen, Wageningen University, Department of Aquatic Ecology & Waterquality Management, Droevendaalsesteeg 3a, 6708 PB Wageningen, The Netherlands email: [email protected]

Abstract

The white-beaked dolphin Lagenorhynchus albirostris is the most numerous cetacean after the harbour porpoise Phocoena phocoena in the North Sea, including Dutch coastal waters. In this study, the diet of 45 white-beaked dolphins stranded on the Dutch coast between 1968 and 2005 was determined by analysis of stomach contents. Although 25 fish species were identified, the diet was dominated by Gadidae (98.0% by weight, 40.0% in numbers), found in all stomachs. All other prey species combined contributed little to the diet by weight (2.0%W). The two most important prey species were whiting Merlangius merlangus (91.1% frequency of occurrence (FO), 30.5%N, 37.6%W) and cod Gadus morhua (73.3%FO, 7.4%N, 55.9%W). In numbers, gobies were most common (54.6%N), but contributed little to the diet by weight (0.6%W). Three stomachs contained different prey compared to the others: one animal had taken 2250 gobies, accounting for 96.4% of all gobies found; one animal had fed on 29 small sepiolids; and one animal had solely taken haddock Melanogrammus aeglefinus. Squid and haddock were not found in any other stomach. The overall diet showed a lasting predominance of whiting and cod, without clear changes over time (35 years) or differences between sexes or size-classes of dolphins. This study adds to earlier published and unpublished data for Dutch coastal waters and agrees well with studies of white-beaked dolphins from other parts of the species’ range, in the North Sea and in Canadian waters, with Gadidae dominating the diet on both sides of the Atlantic.

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 2010

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References

REFERENCES

Arnett, R.T.P. and Whelan, J. (2001) Comparing the diet of cod (Gadus morhua) and grey seals (Halichoerus grypus): an investigation of secondary ingestion. Journal of the Marine Biological Association of the United Kingdom 81, 365366.CrossRefGoogle Scholar
Bannister, R.C.A. (2004) The rise and fall of cod (Gadus morhua L.) in the North Sea. In Payne, A.I.L., O'Brien, C.M. and Rogers, S.I. (eds) Management of shared fish stocks. Oxford: Blackwell, pp. 316338.CrossRefGoogle Scholar
Barros, N.B. and Clarke, M.R. (2009) Diet. In Perrin, W.F., Würsig, B. and Thewissen, J.G.M. (eds) Encyclopedia of marine mammals. Second edition. Burlington/SanDiego/New York/London: Academic Press, pp. 311316.CrossRefGoogle Scholar
Berrow, S.D. and Rogan, E. (1996) Stomach contents of harbour porpoises and dolphins in Irish waters. In Evans, P.G.H. and Nice, H. (eds) Proceedings of the Ninth Annual Conference of the European Cetacean Society, Lugano, Switzerland, 9–11 February 1995. European Research on Cetaceans 9, 179181.Google Scholar
Boran, J.R. and Heimlich, S.L. (1999) Social learning in cetaceans: hunting, hearing and hierarchies. In Box, H.O. and Gibson, K.R. (eds) Mammalian social learning. Comparative and ecological perspectives. Cambridge: Cambridge University Press, pp. 282307.Google Scholar
Bowen, W.D. (2000) Reconstruction of pinniped diets: accounting for complete digestion of otoliths and cephalopod beaks. Canadian Journal of Fisheries and Aquatic Sciences 57, 898905.CrossRefGoogle Scholar
Camphuysen, K. and Peet, G. (2006) Walvissen en dolfijnen in de Noordzee. 's-Graveland: Fontaine Uitgevers.Google Scholar
Camphuysen, C.J., Smeenk, C., Addink, M., Van Grouw, H. and Jansen, O.E. (2008) Cetaceans stranded in the Netherlands from 1998 to 2007. Lutra 51, 87122.Google Scholar
Canning, S.J., Santos, M.B., Reid, R.J., Evans, P.G.H., Sabin, R.C., Bailey, N. and Pierce, G.J. (2008) Seasonal distribution of white-beaked dolphins (Lagenorhynchus albirostris) in UK waters with new information on diet and habitat use. Journal of the Marine Biological Association of the United Kingdom 88, 11591166.CrossRefGoogle Scholar
Clarke, K.R. (1993) Non-parametric multivariate analyses of changes in community structure. Australian Journal of Ecology 18, 117143.CrossRefGoogle Scholar
Clarke, K.R. and Gorley, R.N. (2006) PRIMER v6.1.13: Multivariate statistics for ecologists. Plymouth, UK: PRIMER-E.Google Scholar
Cook, R.M., Sinclair, A. and Stefánsson, G. (1997) Potential collapse of North Sea cod stocks. Nature 385, 521522.CrossRefGoogle Scholar
Cottrell, P.E., Trites, A.W. and Miller, E.H. (1996) Assessing the use of hard parts in faeces to identify harbour seal prey: results of captive-feeding trials. Canadian Journal of Zoology 74, 875880.CrossRefGoogle Scholar
Cottrell, P.E. and Trites, A.W. (2002) Classifying prey hard part structures recovered from fecal remains of captive Steller sea lions (Eumetopias jubatus). Marine Mammal Science 18, 525539.CrossRefGoogle Scholar
Coull, K.A., Jermyn, A.S., Newton, A.W., Henderson, G.I. and Hall, W.B. (1989) Length/weight relationships for 88 species of fish encountered in the North East Atlantic. Scottish Fisheries Research Report 43, 181.Google Scholar
De Pierrepont, J.F., Dubois, B., Desormonts, S., Santos, M.B. and Robin, J.P. (2005) Stomach contents of English Channel cetaceans stranded on the coast of Normandy. Journal of the Marine Biological Association of the United Kingdom 85, 15391546.CrossRefGoogle Scholar
De Smet, W.M.A., Asselberg, R. and Duyndam, R. (1985) Gegevens over een witsnuitdolfijn, Lagenorhynchus albirostris, uit de zuidelijke Noordzee. Marswin 6, 319.Google Scholar
Dong, J.H., Lien, J., Nelson, D.E. and Curren, K. (1996) A contribution to the biology of the white-beaked dolphin, Lagenorhynchus albirostris, in waters off Newfoundland. Canadian Field Naturalist 110, 278287.Google Scholar
Evans, P.G.H. and Smeenk, C. (2008) Genus Lagenorhynchus. In Harris, S. and Yalden, D.W. (eds) Mammals of the British Isles. Handbook. 4th edition. New Road, Southampton: The Mammal Society, pp. 724727.Google Scholar
Granadeiro, J.P. and Silva, M.A. (2000) The use of otoliths and vertebrae in the identification and size-estimation of fish in predator–prey studies. Cybium 24, 383393.Google Scholar
Grellier, K. and Hammond, P.S. (2006) Robust digestion and passage rate estimates for hard parts of grey seal (Halichoerus grypus) prey. Canadian Journal of Fisheries and Aquatic Sciences 63, 19821998.CrossRefGoogle Scholar
Hammond, P.S. (2006) Small Cetaceans in the European Atlantic and North Sea (SCANS-II) Final report. Final Report to the European Commission, LIFE04NAT/GB/000245, 52 pp.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, 361376.CrossRefGoogle Scholar
Härkönen, T. (1986) Guide to the otoliths of the bony fishes of the northeast Atlantic. Hellerup: Danbiu ApS.Google Scholar
Hastie, T. and Tibshirani, R. (1987) Generalized additive models: some applications. Journal of the American Statistical Association 82, 371386.CrossRefGoogle Scholar
Hislop, J.R.G. (1996) Changes in North Sea gadoid stocks. ICES Journal of Marine Science 53, 11461156.CrossRefGoogle Scholar
Husson, A.M. and Van Bree, P.J.H. (1972) Strandingen van Cetacea op de Nederlandse kust in 1970 en 1971. Lutra 14, 15.Google Scholar
Husson, A.M. and Van Bree, P.J.H. (1976) Strandingen van Cetacea op de Nederlandse kust in 1974 en 1975. Lutra 18, 2532.Google Scholar
ICES (2006) Working Group on the Assessment of Demersal Stocks in the North Sea and Skagerrak. International Council for the Exploration of the Sea (CM Papers and Reports) CM2006/ACFM:09, 981 pp.Google Scholar
Kinze, C.C. (1995) Danish whale records 1575–1991 (Mammalia, Cetacea). Review of whale specimens stranded, directly or incidentally caught along the Danish coast. Steenstrupia 21, 155196.Google Scholar
Kinze, C.C. (2009) White-beaked dolphin Lagenorhynchus albirostris. In Perrin, W.F., Würsig, B. and Thewissen, J.G.M. (eds) Encyclopedia of marine mammals. Second edition. Burlington/SanDiego/New York/London: Academic Press, pp. 12551258.CrossRefGoogle Scholar
Kinze, C.C., Addink, M., Smeenk, C., García Hartman, M., Richards, H.W., Sonntag, R.P. and Benke, H. (1997) The white-beaked dolphin (Lagenorhynchus albirostris) and the white-sided dolphin (Lagenorhynchus acutus) in the North and Baltic Seas: Review of available information. Report of the International Whaling Commission 47, 675681.Google Scholar
Knijn, R.J., Boon, T.W., Heessen, H.J.L. and Hislop, J.R.G. (1993) Atlas of North Sea fishes based on bottom-trawl survey data for the years 1985–1987. ICES Cooperative Research Report 194, 268 pp.Google Scholar
Leopold, M.F., Van Damme, C.J.G., Phillippart, C.J.M. and Winter, C.J.N. (2001) Otoliths of North Sea fish: interactive guide of identification of fish from the SE North Sea, Wadden Sea and adjacent fresh waters by means of otoliths and other hard parts. Amsterdam: ETI.Google Scholar
Lick, R. (1993) Nahrungsanalysen von Kleinwalen deutscher Küstengewässer. In Bohlken, H., Benke, H. and Wulf, J. (eds) Untersuchungen über Bestand, Gesundheitszustand und Wanderungen der Kleinwalpopulationen (Cetacea) in deutschen Gewässern. Kiel/Büsum: Institut für Haustierkunde der Universität Kiel und Forschungs- und Technologiezentrum Westküste, Zentrale Einrichtung der Universität Kiel, Endbericht zum FE-Vorhaben des BMU, Anlage, 21 pp.Google Scholar
Pauly, D., Trites, A.W., Capuli, E. and Christensen, V. (1998) Diet composition and trophic levels of marine mammals. ICES Journal of Marine Science 55, 467481.CrossRefGoogle Scholar
Pierce, G.J. and Boyle, P.R. (1991) A review of methods for diet analysis in piscivorous marine mammals. Oceanography and Marine Biology: an Annual Review 29, 409486.Google Scholar
Pierce, G.J., Boyle, P.R., Watt, J. and Grisley, M. (1993) Recent advances in diet analysis of marine mammals. In Boyd, I.L. (ed.) Marine mammals: advances in behavioural and population biology. Symposia of the Zoological Society of London 66, 241261.Google Scholar
Pinheiro, J.C. and Bates, D.M. (2000) Mixed-Effects Models in S and S-PLUS. New York: Springer.CrossRefGoogle Scholar
Pinheiro, J., Bates, D., DebRoy, S., Sarkar, D. and the Core Team (2009) nlme: Linear and Nonlinear Mixed Effects Models. R package version 3, pp. 196.Google Scholar
Pope, J.G. and Macer, C.T. (1996) An evaluation of the stock structure of North Sea cod, haddock, and whiting since 1920, together with a consideration of the impacts of fisheries and predation effects on their biomass and recruitment. ICES Journal of Marine Science 53, 11571169.CrossRefGoogle Scholar
Prime, J.H. and Hammond, P.S. (1987) Quantitative assessment of gray seal diet from fecal analysis. In Huntley, A.C., Costa, D.P., Worthy, G.A.J. and Castellini, M.A. (eds) Approaches to marine mammal energetics. Special Publication 1, Society for Marine Mammalogy, pp. 165181.Google Scholar
R Development Core Team (2009) R: A language and environment for statistical computing. Wien: R Foundation for Statistical Computing. URL http://www.R-project.orgGoogle Scholar
Reeves, R.R., Smeenk, C., Kinze, C.C., Brownell, R.L. and Lien, J. (1999) White-beaked dolphin Lagenorhynchus albirostris Gray, 1846. In Ridgway, S.H. and Harrison, S.R. (eds) Handbook of marine mammals. Volume 6. London/San Diego: Academic Press, pp. 130.Google 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
Sergeant, D.E. and Fisher, H.D. (1957) The smaller Cetacea of eastern Canadian waters. Journal of the Fisheries Research Board of Canada 14, 83115.CrossRefGoogle Scholar
Smeenk, C. (1986) Strandingen van Cetacea op de Nederlandse kust in 1981, 1982 en 1983. Lutra 29, 268281.Google Scholar
Smeenk, C. (1989) Strandingen van Cetacea op de Nederlandse kust in 1984, 1985 en 1986. Lutra 32, 164180.Google Scholar
Smeenk, C. (1992) Strandingen van Cetacea op de Nederlandse kust in 1987, 1988 en 1989. Lutra 35, 5166.Google Scholar
Smeenk, C. (1995) Strandingen van Cetacea op de Nederlandse kust in 1990, 1991 en 1992. Lutra 38, 90104.Google Scholar
Smeenk, C. (2003) Strandingen van Cetacea op de Nederlandse kust in 1993–1997. Lutra 46, 4564.Google Scholar
Smeenk, C. and Gaemers, P.A.M. (1987) Fish otoliths in the stomach of white-beaked dolphins Lagenorhynchus albirostris. European Cetacean Society Newsletter 1, 1213.Google Scholar
Tollit, D.J., Steward, M.J., Thompson, P.M., Pierce, G.J., Santos, M.B. and Hughes, S. (1997) Species and size differences in the digestion of otoliths and beaks: implications for estimates of pinniped diet composition. Canadian Journal of Fisheries and Aquatic Sciences 54, 105119.CrossRefGoogle Scholar
Tollit, D.J., Wong, M., Winship, A.J., Rosen, D.A.S. and Trites, A.W. (2003) Quantifying errors associated with using prey skeletal structures from fecal samples to determine the diet of Steller's sea lion (Eumetopias jubatus). Marine Mammal Science 19, 724744.CrossRefGoogle Scholar
Tollit, D.J., Heaslip, S.G., Zeppelin, T.K., Joy, R., Call, K.A. and Trites, A.W. (2004) A method to improve size estimates of walleye pollock (Theragra chalcogramma) and atka mackerel (Pleurogrammus monopterygius) consumed by pinnipeds: digestion correction factors applied to bones and otoliths recovered from scats. Fisheries Bulletin 102, 498508.Google Scholar
Trites, A.W. (2009) Predator–prey relationships. In Perrin, W.F., Würsig, B. and Thewissen, J.G.M. (eds) Encyclopedia of marine mammals. Second edition. Burlington/SanDiego/New York/London: Academic Press, pp. 933936.CrossRefGoogle Scholar
Van Bree, P.J.H. and Husson, A.M. (1974) Strandingen van Cetacea op de Nederlandse kust in 1972 en 1973. Lutra 16, 110.Google Scholar
Van Bree, P.J.H. and Nijssen, H. (1964) On three specimens of Lagenorhynchus albirostris Gray, 1846 (Mammalia, Cetacea). Beaufortia 11, 8593.Google Scholar
Van Bree, P.J.H. and Smeenk, C. (1978) Strandingen van Cetacea op de Nederlandse kust in 1976 en 1977. Lutra 20, 1318.Google Scholar
Van Bree, P.J.H. and Smeenk, C. (1982) Strandingen van Cetacea op de Nederlandse kust in 1978, 1979 en 1980. Lutra 25, 1929.Google Scholar
Van Deinse, A.B. (1931) De fossiele en recente Cetacea van Nederland. Amsterdam: H.J. Paris.Google Scholar
Van Deinse, A.B. (1946) De recente Cetacea van Nederland van 1931 tot en met 1944. Zoölogische Mededeelingen Leiden 26, 139210.Google Scholar
Van Deinse, A.B. (1951) Onze walvisachtige dieren van 1950. Het Zeepaard 11, 6473.Google Scholar
Van Deinse, A.B. (1955) De Nederlandse Cetacea van 1954. Lutra 1, 103105.Google Scholar
Van Deinse, A.B. (1956) Walvissennieuws over 1955. Lutra 1, 127131.Google Scholar
Van Deinse, A.B. (1963) Walvisnieuws over 1962. Lutra 5, 3135.Google Scholar
Van Deinse, A.B. (1966) Walvisnieuws over 1964. Lutra 8, 2226.Google Scholar
Van Utrecht, W.L. and Husson, A.M. (1968) Strandingen van Cetacea in het voorjaar van 1967 op de Nederlandse kusten. Lutra 10, 717.Google Scholar
Watt, J., Pierce, G.J. and Boyle, P.R. (1997) Guide to the identification of North Sea fish using premaxilla and vertebrae. ICES Cooperative Research Report 220, 231 pp.Google Scholar
Weber, M. (1887) Ueber Lagenorhynchus albirostris, Gray. Tijdschrift der Nederlandsche Dierkundige Vereeniging 1, 114127.Google Scholar
Wijnsma, G., Pierce, G.J. and Santos, M.B. (1999) Assessment of errors in cetacean diet analysis: in vitro digestion of otoliths. Journal of the Marine Biological Association of the United Kingdom 79, 573575.CrossRefGoogle Scholar
Wood, S.N. (2006) Generalized additive models: an introduction with R. Boca Raton, FL: Chapman and Hall/CRC.CrossRefGoogle Scholar
Zuur, A.F., Ieno, E.N., Walker, N., Saveliev, A.A. and Smith, G.M. (2009). Mixed effects models and extensions in ecology with R. New York: Springer.CrossRefGoogle Scholar