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A Mark-Recapture Experiment on Queen Scallops, Aequ1Pecten Opercularis, on a North Irish Sea Fishing Ground

Published online by Cambridge University Press:  11 May 2009

E.H. Allison  and
A.R. Brand
E.H. Allison
Affiliation:
Port Erin Marine Laboratory, University of Liverpool, Port Erin, Isle of Man
A.R. Brand
Affiliation:
Port Erin Marine Laboratory, University of Liverpool, Port Erin, Isle of Man
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Extract

A single-season mark-recapture experiment was carried out on queen scallops, Aequipecten opercularis (L.) (Bivalvia: Pectinidae) to assess the suitability of the technique for estimating population sizes and mortality rates of exploited populations. Tag-loss and tagging-induced mortality were 7.7% and 11.9% respectively. Non-reporting was negligible.

In a single fishing season (June-December 1989) 25.4% of releases were recaptured alive. Mean density of commercial-sized queens was estimated as 0.47 m−2 over the fishing ground. Instantaneous rates of total (Z), fishing (F) and-natural (M) mortality, calculated from the monthly decline of recaptures during the fishing season, were 0.;41,0.21 and 0.20 per month respectively. The calculated M is very high but includes non-yield or indirect fishing mortality. Analysis of the age-frequency distribution of queens from an adjacent, largely unexploited, area indicated an M of only 0.036 per month (0.43 y−1). There was some indication of an increase in M in older year classes, associated with senescence.

The mark-recapture methodology used here is suitable for this species, but single-release experiments place too much reliance on commercial catch-statistics.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 75 , Issue 2 , May 1995 , pp. 323 - 335
Copyright
Copyright © Marine Biological Association of the United Kingdom 1995

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References

Allison, E.H., 1993. The dynamics of exploited populations of scallops (Pecten maximus (L.)) and queens (Chlamys opercularis (L.)) in the north Irish Sea. PhD thesis, University of Liverpool.Google Scholar
Askew, C.G., Dunn, M.R. & Reay, P.J., 1973. The fishery for queen scallops in Guernsey in 1973. Reports of the Marine Resources Research Unit, Portsmouth Polytechnic, UK.Google Scholar
Beverton, R.J.H. & Holt, S.J., 1957. On the dynamics of exploited fish populations. Fishery Investigations, Series 2. MAFF. London, 19, 533 pp.Google Scholar
Brand, A.R. & Allison, E.H., 1994. Estimating abundance on north Irish Sea scallop (Pecten maximus (L.)) fishing grounds. Canadian Technical Report of Fisheries and Aquatic Sciences, in press.Google Scholar
Brand, A.R. & Murphy, E.J., 1986. A tagging study of north Irish Sea scallop (Pecten maximus (L.)) populations: comparisons of an inshore and an offshore fishing ground. In Unitas Malacologia, Ninth International Malacological Congress, abstracts (ed. D., Heppell), pp. 13. Edinburgh: National Museum of Scotland.Google Scholar
Bricelj, V.M., Epp, J. & Malouf, R.E., 1987. Comparative physiology of young and old cohorts of bay scallop Argopecten irradians (Lamarck): mortality, growth, and oxygen consumption. Journal of Experimental Marine Biology and Ecology, 112, 73–91.CrossRefGoogle Scholar
Chapman, C.J., Main, J., Howell, T. & Sangster, G.I., 1979. The swimming speed and endurance of the queen scallop Chlamys opercularis in relation to trawling. Progress in Underwater Science, 4, 57–72.Google Scholar
Chapman, D.G. & Robson, D.S., 1960. The analysis of a catch curve. Biometrics, 16, 354–368.CrossRefGoogle Scholar
Dredge, M.C.L., 1985. Estimates of natural mortality and yield-per-recruit for Amusium japonicum balloti Bernardi (Pectinidae) based on tag recoveries, journal of Shellfish Research, 5, 103–109.Google Scholar
Farebrother, R.W., 1992. A simulation study of three iterated weighted least-squares estimators of mortality rates from single-release tagging studies. ICES Journal of Marine Science, 49, 185–190.CrossRefGoogle Scholar
Franklin, A., Pickett, G.D., Holme, N.A. & Barrett, R.L., 1980. Surveying stocks of scallops (Pecten maximus) and queens (Chlamys opercularis) with underwater television, journal of the Marine Biological Association of the United Kingdom, 60, 181–191.CrossRefGoogle Scholar
Franklin, A. & Rolfe, M.S., 1976. Scallop tagging experiments off Plymouth. Fisheries Notices. MAFF. Lowestoft, 45, 4 pp.Google Scholar
Gruffydd, L.D., 1976. Swimming in Chlamys islandica in relation to current speed and an investigation of hydrodynamic lift in this and other scallops. Norwegian Journal of Zoology, 24, 365–378.Google Scholar
Gulland, J.A., 1983. Fish stock assessment: a manual of basic methods. Chichester: John Wiley & Sons.Google Scholar
Jensen, A.L., 1985. Comparison of catch-curve methods for estimation of mortality. Transactions of the American Fisheries Society, 114, 743–747.2.0.CO;2>CrossRefGoogle Scholar
Jones, R., 1977. Tagging: theoretical methods and practical difficulties. In Fish population dynamics (ed. J.A., Gulland), pp. 46–66. London: John Wiley & Sons.Google Scholar
Leslie, P.H., 1952. The estimation of population parameters from data obtained by means of the capture-recapture method. II. The estimation of total numbers. Biometrika, 39, 363–388.Google Scholar
Mason, J., 1983. Scallop and queen fisheries in the British Isles. Farnham: Fishing News Books.Google Scholar
Mason, J., Shanks, A.M., Fraser, D.I. & Shelton, R.G.J., 1979. The Scottish fishery for the queen, Chlamys opercularis (L.). International Council for the Exploration of the Sea (CM Papers and Reports) Shellfish Committee, CM 1979/K:37, 6 pp.Google Scholar
McLoughlin, R.J., Young, P.C., Martin, R.B. & Parslow, J., 1991. The Australian scallop dredge: estimates of catching efficiency and associated indirect fishing mortality. Fisheries Research, 11, 1–24.CrossRefGoogle Scholar
Mood, A.M., 1950. Introduction to the theory of statistics. New York: McGraw-Hill.Google Scholar
Murphy, E.J., 1986. An investigation of the population dynamics of the exploited scallop, Pecten maximus (L.), in the north Irish Sea. PhD thesis, University of Liverpool.Google Scholar
Naidu, K.S., 1988. Estimating mortality rates in the Iceland scallop, Chlamys islandica (O.F. Müller). Journal of Shellfish Research, 7, 61–71.Google Scholar
Orensanz, J.M., Parma, A.M. & Iribarne, O.O., 1991. Population dynamics and management of natural stocks. In Scallops: biology, ecology and aquaculture (ed. S.E., Shumway), pp. 625–689. Amsterdam: Elsevier.Google Scholar
Pickett, G.D. & Franklin, A., 1975. Techniques for surveying queen scallop populations: experiments off south-west England in May-June 1974. Fisheries Laboratory Technical Report Series. MAFF. Lowestoft, 14, 19 pp.Google Scholar
Ricker, W.E., 1975. Computation and interpretation of biological statistics of fish populations. Bulletin of the Fisheries Research Board of Canada, 191, 382 pp.Google Scholar
Rolfe, M.S., 1973. Notes on queen scallops and how to catch them. Shellfish Information Leaflet, Fisheries Laboratory. MAFF. Burnham-on-Crouch, 27, 13 pp.Google Scholar
Seber, G.A.F., 1982. The estimation of animal abundance and related parameters, 2nd ed.London: Griffin.Google Scholar
Ursin, E., 1956. Distribution and growth of the queen Chlamys opercularis (Lamellibranchiata) in Danish and Faroese waters. Meddelserfra Danmarks Fiskeri-og Havundersogelser, 1, 1–31.Google Scholar
Zar, J.H., 1984. Biostatistical analysis, 2nd ed.London: Prentice-Hall International.Google Scholar