Hostname: page-component-7479d7b7d-qlrfm Total loading time: 0 Render date: 2024-07-12T06:30:47.826Z Has data issue: false hasContentIssue false

Fluctuations in Numbers and Activity of Inshore Demersal Fishes in Shetland

Published online by Cambridge University Press:  11 May 2009

H. Kruuk
Affiliation:
Institute of Terrestrial Ecology, Banchory AB3 4BY, Scotland
B. Nolet
Affiliation:
† Department of Zoology, University of Groningen, Haren, Netherlands
D. French
Affiliation:
Institute of Terrestrial Ecology, Banchory AB3 4BY, Scotland

Extract

Prey populations, patterns of availability, and dispersion of prey can have farreaching effects on numbers and range-sizes of terrestrial Carnivora (Macdonald, 1983; Kruuk & Parish, 1982; Kruuk & Macdonald, 1985). These parameters may therefore also affect populations of otters Lutra lutra, living in the sea around Shetland, U.K., as well as populations of fish-eating birds there. This paper presents observations on fluctuations in numbers and activity of several species of demersal fish, over a 3½ year period, along a coast in Shetland. It aims to provide information on the distribution and availability of these species to some predators, especially to the otter, but also to the heron Ardea cinerea, the black guillemot Cepphus grylle and others.

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 1988

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

Badsha, K. S. & Sainsbury, M., 1978. Aspects of the biology and heavy metal accumulation of Ciliata mustela. Journal of Fish Biology, 12, 213220.CrossRefGoogle Scholar
Berry, R. J. & Johnston, J. L., 1980. The Natural History of Shetland. London: Collins.Google Scholar
Ewins, P. J., 1986. The Ecology of Black Guillemots Cepphus grylle in Shetland. D.Phil. Thesis, University of Oxford.Google Scholar
Gibson, R. N., 1967. Studies on the movements of littoral fish. Journal of Animal Ecology, 36, 215234.CrossRefGoogle Scholar
Gibson, R. N., 1969. The biology and behaviour of littoral fish. Oceanography and Marine Biology, an Annual Review, 7, 367410.Google Scholar
Gibson, R. N., 1972. The vertical distribution and feeding relationships of intertidal fish on the Atlantic coast of France. Journal of Animal Ecology, 41, 189207.CrossRefGoogle Scholar
Gibson, R. N., 1982. Recent studies on the biology of intertidal fishes. Oceanography and Marine Biology, an Annual Review, 20, 363414.Google Scholar
Gordon, J. D. M. & De Silva, S. S., 1980. The fish populations of the west of Scotland Shelf. Part I. Oceanography and Marine Biology, an Annual Review, 18, 317366.Google Scholar
Gordon, J. D. M. & De Silva, S. S., 1981. The fish populations of the west of Scotland Shelf. Part II. Oceanography and Marine Biology, an Annual Review, 19, 405441.Google Scholar
Hamley, J. M. & Howley, T. P., 1985. Factors affecting variability of trapnet catches. Canadian Journal of Fish and Aquatic Science, 42, 10791087.CrossRefGoogle Scholar
Herfst, M. S., 1984. Habitat and food of the otter Lutra lutra in Shetland. Lutra, 27, 5770.Google Scholar
Kain, J. M., 1979. A view of the genus Laminaria. Oceanography and Marine Biology, an Annual Review, 17, 101161.Google Scholar
Kitching, J. A., 1941. Studies in sub-littoral ecology. III. Laminaria forest on the west coast of Scotland; a study of zonation in relation to wave action and illumination. Biological Bulletin. Marine Biological Laboratory, Woods Hole, Mass., 80, 324337.CrossRefGoogle Scholar
Kruuk, H., Conroy, J. W. H. & Moorhouse, A., 1987. Seasonal reproduction, mortality and food of otters Lutra lutra L. in Shetland. Symposia of Zoological Society of London, no. 58, 263278.Google Scholar
Kruuk, H., Glimmerveen, U. & Ouwerkerk, E. J., 1985. The effects of depth on otter foraging in the sea. Annual Report. Institute of Terrestrial Ecology, Cambridge, 1984, 112115.Google Scholar
Kruuk, H. & MacDonald, D., 1985. Group territories of carnivores: empires and enclaves. In Behavioural Ecology: Ecological Consequences of Adaptive Behaviour (ed. Sibley, R. M. and Smith, R. H.), pp. 521536. Oxford. Blackwells.Google Scholar
Kruuk, H. & Parish, T., 1982. Factors affecting population density, group size and territory size in the European badger, Meles meles. Journal of Zoology, 196, 3139.CrossRefGoogle Scholar
Le Cren, E. D., Kipling, C. & McCormack, J. C., 1977. A study of the numbers, biomass and year-class strengths of perch (Perca fluviatilis L.) in Windermere from 1941 to 1966. Journal of Animal Ecology, 46, 281307.CrossRefGoogle Scholar
MacDonald, D. W., 1983. The ecology of carnivore social behaviour. Nature, London, 301, 379384.CrossRefGoogle Scholar
Piatt, J. F. & Nettleship, D. N., 1985. Diving depths of four alcids. Auk, 102, 293297.CrossRefGoogle Scholar
Quasim, S. Z., 1957. The biology of Centronotus gunnellus (L.) (Teleostei). Journal of Animal Ecology, 26, 389401.CrossRefGoogle Scholar
Siegel, S., 1956. Non-Parametric Statistics. New York: McGraw-Hill.Google Scholar
Stott, B., 1970. Some factors affecting the catching power of unbaited fish traps. Journal of Fish Biology, 2, 1522.CrossRefGoogle Scholar
Westin, L. & Aneer, G., 1987. Locomotor activity patterns of nineteen fish and five crustacean species from the Baltic Sea. Environmental Biology of Fishes, 20, 4965.CrossRefGoogle Scholar
Wheeler, A., 1969. Fishes of the British Isles and North-West Europe. London: Macmillan.Google Scholar
Wheeler, A., 1978. Key to the Fishes of Northern Europe. London: Warne.Google Scholar