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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://dx.doi.org/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

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Beschikbaar in	Auteurs
VLIZ: Open access 154770 [ download pdf ]

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Trefwoorden

ANE, North Sea, Dogger Bank Aquatic organisms > Marine organisms > Fish > Marine fish Drift Life history Motion > Water motion > Water currents Temperature Gadus morhua Linnaeus, 1758 [WoRMS]; Sprattus sprattus (Linnaeus, 1758) [WoRMS]; Trachurus trachurus (Linnaeus, 1758) [WoRMS] Dogger Bank [Marine Regions] Marien/Kust

Author keywords

IBMs; marine fish; life history strategy; drift; temperature; watercurrents

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

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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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