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The origin and recruitment of bass, Dicentrarchus labrax, larvae to nursery areas

Published online by Cambridge University Press:  11 May 2009

S. Jennings
Affiliation:
Marine Environmental and Evolutionary Research Group, School of Biological Sciences, University of Wales, Swansea, SA2 8PP. Present address: Ministry of Agriculture, Fisheries and Food, Directorate of Fisheries Research, Fisheries Laboratory, Lowestoft, Suffolk, NR33 0HT
M. G. Pawson
Affiliation:
Ministry of Agriculture, Fisheries and Food, Directorate of Fisheries Research, Fisheries Laboratory, Lowestoft, Suffolk, NR33 0HT

Extract

The distribution of bass, Dicentrarchus labrax (L.), eggs taken in ichthyoplankton surveys of the Bristol channel and eastern Celtic Sea from April 1989 to May 1990 indicates that bass spawned predominantly offshore during March and April. Seventy-two bass larvae were captured by ring net and 16 by high-speed tow net during 19–27 May 1989, and 11 were captured by ring net during April and May 1990. Larvae were most abundant inshore where the water column was unstratified and less than 50 m deep.

Back-calculated egg fertilization dates were determined for 58 larvae captured in May 1989 by ring net, using estimates of temperature-dependent egg and larval development rates and counts of daily growth increments on sagittal otoliths. These dates ranged from 5 April to 10 May 1989, later than those for most young-of-the-year bass which first appeared in Welsh estuaries during June 1989. This implies that bass larvae would have been more abundant before the May sampling period, even though these catches are the largest reported from UK waters.

Bass larvae of 5–11 mm live notochord length were captured close to estuarine nursery areas, and their mean growth rate was approximately 0·2 mm per day. However, the smallest bass first arriving in the nursery areas during June, July and August were always larger than these larvae, and predominantly 15–20 mm total length. It is suggested that bass larvae hatching offshore either perish or are transported to unstratified coastal waters where they feed and remain for at least 30 days prior to their recruitment to the nurseries.

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 1992

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References

Aprahamian, M.W. & Barr, C.D., 1985. The growth, abundance and diet of 0-group sea bass, Dicentrarchus labrax, from the Severn Estuary. Journal of the Marine Biological Association of the United Kingdom, 65, 169180.CrossRefGoogle Scholar
Baxter, C.G. & Bedwell, J. A., 1972. The MAFF current-meter system and data inventory, 1968–1971. Ministry of Agriculture, Fisheries and Food, Fisheries Laboratory. Technical Report Series, 4, 41 pp.Google Scholar
Claridge, P.N. & Potter, I.C., 1983. Movements, abundance, age composition and growth of bass, Dicentrarchus labrax, in the Severn Estuary and inner Bristol Channel. Journal of the Marine Biological Association of the United Kingdom, 63, 871879.CrossRefGoogle Scholar
Dando, P.R. & Demir, N., 1985. On the spawning and nursery grounds of bass, Dicentrarchus labrax, in the Plymouth area. Journal of the Marine Biological Association of the United Kingdom, 65, 159168.CrossRefGoogle Scholar
Holden, M.J. & Williams, T., 1974. The biology, movements and population dynamics of bass, Dicentrarchus labrax, in English waters. Journal of the Marine Biological Association of the United Kingdom, 54, 91107.CrossRefGoogle Scholar
Jennings, S., 1990. Population dynamics of larval and juvenile bass, Dicentrarchus labrax (L.). PhD thesis, University of Wales.Google Scholar
Jennings, S., 1991a. The effects of capture, net retention and preservation upon lengths of larval and juvenile bass, Dicentrarchus labrax (L.). Journal of Fish Biology, 38, 349357.CrossRefGoogle Scholar
Jennings, S., 1991b. Size-Selectivity Of Drag Seines Employed For Capture Of Juvenile Bass Dicentrarchus Labrax (L.). Fisheries Research, 12, in press.CrossRefGoogle Scholar
Jennings, S. & Pawson, M.G., 1991. The development of bass, Dicentrarchus labrax, eggs in relation to temperature. Journal of the Marine Biological Association of the United Kingdom, 71, 107116.CrossRefGoogle Scholar
Jennings, S., Lancaster, J.E., Ryland, J.S. & Shackley, S.E., 1991. The age structure and growth dynamics of young-of-the-year bass, Dicentrarchus labrax, populations. Journal of the Marine Biological Association of the United Kingdom, 71, 799810.CrossRefGoogle Scholar
Kelley, D., 1986. Bass nurseries on the west coast of the U.K. Journal of the Marine Biological Association of the United Kingdom, 66, 439464.CrossRefGoogle Scholar
Kelley, D.F. 1988. The importance of estuaries for sea bass, Dicentrarchus labrax (L.). Journal of Fish Biology, 33, supplement A, 2533.CrossRefGoogle Scholar
Kennedy, M. & Fitzmaurice, P., 1968. Occurrence of eggs of bass, Dicentrarchus labrax, on the southern coasts of Ireland. Journal of the Marine Biological Association of the United United Kingdom, 48, 585592.CrossRefGoogle Scholar
Lee, A.J., Bumpus, D.F. & Lauzier, L.M., 1965. The sea-bed drifter. Research Bulletin of the International Commission for Northwest Atlantic Fisheries, 2, 4247.Google Scholar
Milligan, S.P. & Riches, B.F., 1983. The new MAFF/Guideline high speed plankton samplers. International Council for the Exploration of the Sea (CM Papers & Reports), L:7, 14 pp.Google Scholar
Morales, B., 1985. Daily growth increments in the otoliths of Dicentrarchus labrax. Rapports et Procèsverbauxdes Réunions, Commission lnternationale pour l'Exploration Scientifique de la Mer Méditerrané, 29, 9597.Google Scholar
Pawson, M.G. & Pickett, G.D., 1987. The bass Dicentrarchus labrax and management of its fishery in England and Wales. Laboratory Leaflets. Ministry of Agriculture, Fisheries and Food. Lowestoft, no. 59, 37 pp.Google Scholar
, P., Rosa, H.C. & Dinis, M.T., 1986. Daily microgrowth increments in the sagittae of Dicentrarchus labrax (L.) larvae under controlled conditions. Investigatión Pesauera, 50, 397402.Google Scholar
Russell, F.S., 1935. On the occurrence of post-larval stages of the bass, Morone labrax (L.) in the Plymouth area. journal of the Marine Biological Association of the United Kingdom, 20, 7172.CrossRefGoogle Scholar
Russell, F.S., 1976. The eggs and plankton stages of British marine fish. London: Academic Press.Google Scholar
Russell, F.S. & Demir, N., 1971. On the seasonal abundance of young fish. XII. The years 1967, 1968, 1969 and 1970. Journal of the Marine Biological Association of the United Kingdom, 51, 127130.CrossRefGoogle Scholar
Sabriye, A.S., Reay, P.J. & Coombs, S.H., 1988. Sea-bass larvae in coastal and estuarine plankton. Journal of Fish Biology, 33, supplement A, 231233.CrossRefGoogle Scholar
Simpson, J.H., 1981. The shelf-sea fronts; implications of their existence and behaviour. Philosophical Transactions of the Royal Society of London (A), 302, 531546.Google Scholar
Thompson, B.M. & Harrop, R.T., 1987. The distribution and abundance of bass (Dicentrarchus labrax) eggs and larvae in the English Channel and southern North Sea. Journal of the Marine Biological Association of the United Kingdom, 67, 263274.CrossRefGoogle Scholar