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Ayata, Sakina-dorothee; Stolba, Robin; Comtet, Thierry; Thiebaut, Eric. |
The relationship between meroplankton distribution and spatio-temporal variability of coastal mesoscale hydrological structure was investigated in the northern Bay of Biscay, North-East Atlantic. For the three coastal polychaetes studied, i.e. Pectinaria koreni, Owenia fusiformis and Sabellaria alveolata, the highest larval abundances were sampled in low-salinity, low-density and high-temperature river plume waters. For two species (P. koreni and O. fusiformis), maximal abundances were observed in the surface and thermocline layers due to ontogenic migrations. Variance partitioning based on multiple regression and redundancy analyses was used to assess the relative roles played by the hydrological environment alone, the geographical space alone and their... |
Tipo: Text |
Palavras-chave: Meroplankton; Larval transport; Mesoscale structures; River plume; Fronts; Owenia fusiformis; Pectinaria koreni; Sabellaria alveolata; Bay of Biscay. |
Ano: 2011 |
URL: https://archimer.ifremer.fr/doc/00240/35131/33632.pdf |
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Huret, Martin; Runge, J; Chen, Claude; Cowles, G; Xu, Q; Pringle, J. |
As an initial step in establishing mechanistic relationships between environmental variability and recruitment in Atlantic cod Gadhus morhua along the coast of the western Gulf of Maine, we assessed transport success of larvae from major spawning grounds to nursery areas with particle tracking using the unstructured grid model FVCOM (finite volume coastal ocean model). In coastal areas, dispersal of early planktonic life stages of fish and invertebrate species is highly dependent on the regional dynamics and its variability, which has to be captured by our models. With state-of-the-art forcing for the year 1995, we evaluate the sensitivity of particle dispersal to the timing and location of spawning, the spatial and temporal resolution of the model, and... |
Tipo: Text |
Palavras-chave: Meso scale processes and turbulence; Spawning grounds; Modeling sensitivity; Particle dispersal; Larval transport; Gadhus morhua; Atlantic cod; Gulf of Maine. |
Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-3566.pdf |
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