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Inter-annual and inter-specific differences in the drift of fish eggs and yolksac larvae in the North Sea: a biophysical modeling approach
Peck, M.A.; Kühn, W.; Hinrichsen, H.-H.; Pohlmann, T. (2009). Inter-annual and inter-specific differences in the drift of fish eggs and yolksac larvae in the North Sea: a biophysical modeling approach. Sci. Mar. (Barc.) 73(Suppl. 1): 23-36. https://hdl.handle.net/10.3989/scimar.2009.73s1023
In: Scientia Marina (Barcelona). Consejo Superior de Investigaciones Científicas. Institut de Ciènces del Mar: Barcelona. ISSN 0214-8358; e-ISSN 1886-8134, meer
Peer reviewed article  

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Trefwoorden
    Drift; Levensgeschiedenis; Mariene vis; Temperature; Waterstromen; Gadus morhua Linnaeus, 1758 [WoRMS]; Sprattus sprattus (Linnaeus, 1758) [WoRMS]; Trachurus trachurus (Linnaeus, 1758) [WoRMS]; ANE, North Sea, Dogger Bank [Marine Regions]; Marien
Author keywords
    IBMs; marine fish; life history strategy; drift; temperature; watercurrents

Auteurs  Top 
  • Peck, M.A.
  • Kühn, W.
  • Hinrichsen, H.-H.
  • Pohlmann, T.

Abstract
    We employed 3-D biophysical modeling and dispersion kernel analysis to explore inter-annual and interspecific differences in the drift trajectories of eggs and yolkgac larvae of plaice (Pleuronectes platessa), Atlantic cod (Gadus morhua), sprat (Sprattus sprattus) and horse mackerel (Trachurus trachurus) in the North Sea. In this region, these four species exhibit peak spawning during the boreal winter, late winter/early spring, late spring/early summer, and mid-summer respectively, but utilize the same spawning locations (our simulations included Dogger Batik, Southern Bight and the German Bight). Inter-annual differences in the temperature history, and all increase in the area of dispersion and final distribution at the end of the yolksac phase were more pronounced (and related to the North Atlantic Oscillation) for winter- and early spring-spawners compared to late spring/summer spawners. The progeny of the latter experienced the largest (up to 10-fold) inter-annual differences in drift distances, although absolute drift distances were modest (similar to 2 to 30 km) when compared to those of the former (similar to 20 to 130 km). Our results highlight the complex interplay that exists between the specific life history strategies of the different species and the impacts of the variability in (climate-driven) physical factors during the earliest life stages of marine fish.

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