Publicaties | Kaarten

nieuwe zoekopdracht

[ meld een fout in dit record ]mandje (0): toevoegen | toon Print deze pagina
Decapod larvae distribution and species composition off the southern Portuguese coast
Pochelon, P.N.; Pires, R.F.T.; Dubert, J.; Nolasco, R.; Santos, A.M.P.; Queiroga, H.; dos Santos, A. (2017). Decapod larvae distribution and species composition off the southern Portuguese coast. Cont. Shelf Res. 151: 53-61. https://dx.doi.org/10.1016/j.csr.2017.10.009
In: Continental Shelf Research. Pergamon Press: Oxford; New York. ISSN 0278-4343; e-ISSN 1873-6955, meer
Peer reviewed article  
Beschikbaar in  Auteurs 
Trefwoorden
    Crustaceans (marine)
    Developmental stages > Larvae > Invertebrate larvae
    Motion > Water motion > Vertical water movement > Upwelling
    Portugal
    Spatial distribution
    Decapoda [WoRMS]
    Portugal [Marine Regions]
    Marien/Kust
Author keywords
    Invertebrate larvae; Crustaceans; Decapoda; Spatial distribution;Upwelling; Portugal
Auteurs  Top 
  • Pochelon, P.N.
  • Pires, R.F.T.
  • Dubert, J.
  • Nolasco, R.
  • Santos, A.M.P.
  • Queiroga, H.
  • dos Santos, A.
Abstract
    For decapod crustaceans, the larval phase is the main responsible for dispersal, given the direct emission from adult habitats into the water column. Circulation patterns and behavioural mechanisms control the dispersal distance and connectivity between different areas. Information on larval distribution and abundance is required to predict the size and location of breeding populations, and correctly manage marine resources. Spatial distribution and abundance data of decapod larvae, and environmental parameters were assessed in winter surveys off the southern Portuguese coast. To better understand the oceanic structures driving larval distribution patterns, in situ physical parameters were measured and a hydrodynamical model used. Inter-annual, cross-shore and alongshore differences on decapod larvae distribution were found. Brachyuran crabs dominated the samples and similar taxa composition was observed in the most dynamic areas. Coastal taxa dominated the nearshore survey and were almost absent in the more offshore one, that registered much lower abundances. An upwelling front allowed a clear cross-shore species separation, also evident in the abundance values and number of taxa. Hydrodynamical conditions and adult habitats were the main factors explaining the observed patterns. Important missing information to understand the distribution patterns of decapod larval communities and the mechanisms behind them is given for the region.
Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid Top | Auteurs 
IMIS is ontwikkeld en wordt gehost door het VLIZ.