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The spawning of plaice Pleuronectes platessa in the Kattegat
Nielsen, E.; Støttrup, J.G.; Heilmann, J.; MacKenzie, B.R. (2004). The spawning of plaice Pleuronectes platessa in the Kattegat. J. Sea Res. 51(3-4): 219-228. https://dx.doi.org/10.1016/j.seares.2003.08.005
In: Journal of Sea Research. Elsevier/Netherlands Institute for Sea Research: Amsterdam; Den Burg. ISSN 1385-1101; e-ISSN 1873-1414
Also appears in:
Geffen, A.J.; Nash, R.D.M.; van der Veer, H.W. (Ed.) (2004). Proceedings of the Fifth International Symposium on Flatfish Ecology, Part II. Port Erin, Isle of Man, 3-7 November 2002. Journal of Sea Research, 51(3-4). Elsevier: Amsterdam. 167-338 pp., more
Peer reviewed article  
Available in  Authors 
    Vlaams Instituut voor de Zee: Non-open access 351689 [ request ]
Keywords
    Aquatic organisms > Marine organisms > Fish > Marine fish
    Behaviour > Reproductive behaviour
    Fishes > Osteichthyes > Pleuronectiformes > Pleuronectidae > Pleuronectes > Plaice
    Nursery grounds
    Spawning
    Pleuronectes platessa Linnaeus, 1758 [WoRMS]
    ANE, Kattegat [Marine Regions]
    Marine/Coastal
Author keywords
    plaice; spawning; Kattegat
Authors  Top 
  • Nielsen, E.
  • Støttrup, J.G.
  • Heilmann, J.
  • MacKenzie, B.R.
Abstract
    Cruises were carried out in the entire Kattegat in early March of 1998 and 2000 to investigate the spawning of plaice Pleuronectes platessa. The data showed that plaice still spawn in the Kattegat, with a main spawning area in the southern Kattegat and an area of less, but variable importance in the northern coastal Kattegat. The results indicate that spawning in the southern part of Kattegat occurs earlier than in the northern Kattegat. The preferred spawning depth was found to be around 30-40 m. Juvenile recruitment in the nursery areas along the Danish east coast derives mainly from the southern stock in the southern Kattegat with low and variable input of Skagerrak plaice. Maturity ogives for both sexes were obtained and both A50 and L50 were lower than those estimated 10 years previous to this study and for plaice in the North Sea. The shift towards earlier maturity and the absence of the larger age groups in the catches indicate that the Kattegat plaice stock is under severe pressure today.
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