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Assemblages in a submarine canyon: Influence of depth and time
Sabatini, A.; Follesa, M.C.; Locci, I.; Pendugiu, A.A.; Pesci, P.; Cau, A. (2007). Assemblages in a submarine canyon: Influence of depth and time, in: Relini, G. et al. Biodiversity in Enclosed Seas and Artificial Marine Habitats: Proceedings of the 39th European Marine Biology Symposium, held in Genoa, Italy, 21-24 July 2004. Developments in Hydrobiology, 193: pp. 265-271
In: Relini, G.; Ryland, J. (Ed.) (2007). Biodiversity in Enclosed Seas and Artificial Marine Habitats: Proceedings of the 39th European Marine Biology Symposium, held in Genoa, Italy, 21-24 July 2004. Developments in Hydrobiology, 193. European Marine Biology Symposia, 39. ISBN 978-1-4020-6155-4. 271 pp. https://hdl.handle.net/10.1007/978-1-4020-6156-1, meer
In: Dumont, H.J. (Ed.) Developments in Hydrobiology. Kluwer Academic/Springer: The Hague; London; Boston; Dordrecht. ISSN 0167-8418, meer

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Beschikbaar in  Auteurs 

Trefwoorden
    Aggregation > Cluster analysis
    Cluster analysis
    Dimensions > Depth
    Information > Information processing > Data analysis > Analysis > Statistical analysis > Cluster analysis
    Topographic features > Submarine features > Submarine canyons
    MED, Italy, Sardinia [Marine Regions]; MED, Mediterranean [Marine Regions]
    Marien
Author keywords
    cluster analysis; multidimensional scaling; submarine canyon; fishassemblages; depth; Mediterranean sea

Auteurs  Top 
  • Sabatini, A.
  • Follesa, M.C.
  • Locci, I.
  • Pendugiu, A.A.
  • Pesci, P.
  • Cau, A.

Abstract
    In this work we have studied the assemblages from Quirra canyon (Sardinia). We analysed data from 25 trawl samples from the canyon, made at different times and depth. A total of 71 demersal species (38 teleosts, 5 cartilaginous fishes, 13 molluscs and 15 crustaceans) were examined. We found four groups using cluster analysis; each group is characterised by a certain depth or time. In particular we have shown that the time of the day appears to have a role in the movement of shrimps and other species. This phenomenon seems to be linked to trophic need and by the consequent different food availability into the Canyon.

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