Comparative distribution, movements and diet of harbour and grey seals from the Moray Firth, N.E. Scotland

Journal of Applied Ecology

Volumn 33, Issue 6, 1996, Pages 1572-1584

  Thompson, Paul M ^a   Mcconnell, Bernie J ^b   Tollit, Dominic J ^a   Mackay, Ann ^a   Hunter, Colin ^b   Racey, Paul A ^a  

^a UNIVERSITY OF ABERDEEN   (United Kingdom)

^b UNIVERSITY OF ST ANDREWS   (United Kingdom)

Author keywords

fisheries interactions; foraging ecology; haul out behaviour; pinnipeds; telemetry

Indexed keywords

DIET; GEOGRAPHICAL DISTRIBUTION; GREY SEAL; HARBOUR SEAL; HAULOUT BEHAVIOUR; LOCAL MOVEMENT; LOCAL MOVEMENTS;

UK, SCOTLAND, MORAY FIRTH;

HALICHOERUS GRYPUS; PHOCA VITULINA;

EID: 0030302630     PISSN: 00218901     EISSN: None     Source Type: Journal    
DOI: 10.2307/2404795     Document Type: Article

References (35)

1. Allen, P.J. Amos, W.A., Pomeroy, P.P. & Twiss, S.D. (1995) Microsatellite variation in grey seals (Halichoerus grypus) shows evidence of genetic isolation between two British breeding colonies. Molecular Ecology, 4, 653-662.
2. Argos (1989) Guide to the Argos System. Argos CLS, Toulouse.
3. Bigg, M.A & Perez, M.A. (1985) Modified volume; a frequency-volume method to assess marine mammal food habits. Interactions between Marine Mammals and Fisheries (eds J. R. Beddington, R. J. H. Beverton & D. M. Lavigne), pp 277-283. George Allen & Unwin, London.
4. Bonner, W.M. & Witthames, S.R. (1974) Dispersal of common seals tagged in the Wash, East Anglia. Journal of Zoology., London. (A), 174, 528-531.
5. Bonner, W.N (1972) The grey seal and common seal in European waters. Oceanography and Marine Biology Annual Review, 10, 461-507.
6. Bonner, W.N. (1981) Grey seal. Handbook of Marine Mammals, Vol. 2 (eds S.H. Ridgway & R.J. Harrison), pp 111-144. Academic Press, London.
7. Brown, R.F. & Mate, B.R. (1983) Abundance movements and feeding habits of harbor seals (Phoca vitulina) at Netarts and Tillamook Bays, Oregon. Fishery Bulletin, 81, 291-301.
8. Dixon, K.R. & Chapman, J A. (1980) Harmonic mean measure of animal activity areas. Ecology, 61, 1040-1044.
9. Eberhardt, L.L., Chapman, D.G. & Gilbert, J.R. (1979) A review of marine mammal census methods. Wildlife Monographs, 63, 46.
10. Fancher, L.E. & Alcorn, D.J. (1982) Harbor seal census in south San Francisco Bay (1972-1977 and 1979-1980). California Fish and Game, 68, 118-124.
11. Greenstreet, S.P.R., Morgan, R.I.G., Barnett, S. & Redhead, P. (1993) Variation in the numbers of shags Phalacrocorax aristotelis and common seals Phoca vitulina near the mouth of an Atlantic salmon Salmo salar river at the time of the smolt run. Journal of Animal Ecology, 62, 565-576.
12. Hammond, P.S. Hall, A.J. & Prime, J.H. (1994) The diet of grey seals around Orkney and other island and mainland sites in north-eastern Scotland. Journal of Applied Ecology, 31, 340-350.
13. Hammond, P.S., McConnell, B.J. & Fedak, M.A. (1993) Grey seals off the east coast of Britain: distribution and movements at sea. Symposium of the Zoological Society of London, 66, 211-223.
14. Harwood, J. (1983) Interactions between marine mammals and fisheries. Advances in Applied Biology, 8, 189-214.
15. Harwood, J. & Greenwood, J.J.D. (1985) Competition between British grey seals and fisheries. Interactions Between Marine Mammals and Fisheries (eds J. R. Beddington, R. J. H. Beverton & D. M. Lavigne). pp 153-169. George Allen & Unwin, London.
16. Hiby, A.R., Duck, C.D. & Thompson, D. (1993) Seal stocks in Great Britain: surveys conducted in 1991. NERC News, 20-31.
17. Jeffries, S.J. (1986) Seasonal movements and population trends of harbor seals (Phoca vitulina richardsi) in the Columbia River and adjacent waters of Washington and Oregon: 1976-1982. Report to the US Marine Mammal Commission, Contract MM2079357-5.
18. McConnell, B.J., Chambers, C., Nicholas, K.S. & Fedak, M.A. (1992) Satellite tracking of grey seals Halichoerus grypus Journal of Zoology, 226, 271-282.
19. McConnell, B.J., Chambers, C. & Fedak, M.A. (1992) Foraging ecology of southern elephant seals in relation to the bathymetry and productivity of the Southern Ocean. Antarctic Science, 4, 393-398.
20. Pierce, G.J. & Boyle, P.R. (1991) A review of methods for diet analysis in piscivorous marine mammals. Oceanography & Marine Biology Annual Review, 29, 409-489.
21. Pierce, G.J., Thompson, P.M., Miller, A., Diack, J.S.W., Miller, D. & Boyle, P.R. (1991a) Seasonal variation in the diet of common seals (Phoca vitulina) in the Moray Firth area of Scotland. Journal of Zoology, 223, 641-652.
22. Pierce, G.J., Miller, A., Thompson, P.M. & Hislop, J.R.G (1991b) Prey remains m grey seal (Halichoerus grypus) faeces from the Moray Firth, north-east Scotland. Journal of Zoology, 224, 337-341.
23. Roffe, T.J. & Mate, B.R. (1984) Abundance and feeding habits of pinnipeds in the Rogue river, Oregon. Journal of Wildlife Management, 48, 1262-1274.
24. SMRU (1984) Interactions between grey seals and UK fisheries. A report of research conducted 1980-1983 for the Department of Agriculture and Fisheries for Scotland. 241 pp.
25. Slater, L.M. & Markowitz, H. (1983) Spring population trends in Phoca vitulina richardsi in two central California coastal areas. California Fish and Game, 69, 217-226.
26. Thompson, D., Hammond, P.S., Nicholas, K.S. & Fedak, M.A. (1991a) Movements, diving and foraging behaviour of grey seals Halichoerus grypus. Journal of Zoology, 224, 223-232.
27. Thompson, P.M. (1989) Seasonal changes in the distribution and composition of common seal (Phoca vitulina) haulout groups. Journal of Zoology, 217, 597-603.
28. Thompson, P.M., Cornwell, H.J.C., Ross, H.M. & Miller, D. (1992) Serologic study of phocine distemper in a population of harbor seals in Scotland. Journal of Wildlife Diseases, 28, 21-27.
29. Thompson, P.M., Fedak, M.A., McConnell, B.J. & Nicholas, K.S. (1989) Seasonal and sex-related variation in the activity patterns of common seals (Phoca vitulina). Journal of Applied Ecology, 26, 521-535.
30. Thompson, P.M., Kovacs, K.M. & McConnell, B.J. (1994) Natal dispersal of harbour seals (Phoca vitulina) from breeding sites in Orkney. Journal of Zoology, 234, 668-673.
31. Thompson, P.M. & Miller, D. (1990) Summer foraging activity and movements of radio-tagged common seals (Phoca vitulina L.) in the Moray Firth, Scotland. Journal of Applied Ecology, 27, 492-501.
32. Thompson, P.M., Pierce, G.J., Hislop, J.R.G., Miller, D. & Diack, J.S.W. (1991b) Winter foraging by common seals (Phoca vitulina) in relation to food availability in the inner Moray Firth, N.E. Scotland. Journal of Animal Ecology, 60, 283-294.
33. Thompson, P.M., Tollit, D.J., Greenstreet, S P.R., Mackay, A. & Corpe, H.M. (1996) Between-year variations in the diet and behaviour of Moray Firth harbour seals; causes and consequences. In: Aquatic Predators and their Prey (eds S. P. R. Greenstreet & M. L. Tasker), pp. 44-52. Blackwell Scientific Publications, Oxford.
34. Tollit, D.J. & Thompson, P.M. (1996) Seasonal and between-year variations in the diet of harbour seals in the inner Moray Firth, NE Scotland. Canadian Journal of Zoology, 74, 1110-1121.
35. Trillmich, F. (1992) Influence of rare ecological events on pinniped social structure and population dynamics. Symposium of the Zoological Society of London, 66, 95-114.