Analysis of demersal fish assemblages of the Tuscany and Latium coasts (north-western Mediterranean)

Authors

  • Franco Biagi Dipartimento di Scienze dell’Uomo e dell’Ambiente, Università di Pisa
  • Paolo Sartor Centro Interuniversitario di Biologia Marina ed Ecologia Applicata
  • Gian Domenico Ardizzone Dipartimento di Biologia Animale e dell’Uomo, Università di Roma “La Sapienza”
  • Paola Belcari Dipartimento di Scienze dell’Uomo e dell’Ambiente, Università di Pisa
  • Andrea Belluscio Dipartimento di Biologia Animale e dell’Uomo, Università di Roma “La Sapienza”
  • Fabrizio Serena Agenzia Regionale per l’Ambiente Toscana

DOI:

https://doi.org/10.3989/scimar.2002.66s2233

Keywords:

assemblages, cluster analysis, demersal resources, western Mediterranean

Abstract


A four-year time series (1994-1997) of groundfish trawl surveys performed within the European Union Project MEDITS (Mediterranean International Trawl Surveys), was analysed to identify and describe the fish assemblages along the continental shelf and slope of Tuscany and Latium (Italy), in the north-western Mediterranean. Cluster analysis was used to group samples with similar species composition in terms of abundance, biomass and frequency of occurrence. Results allowed the identification of four to five broad assemblages along the depth gradient: a strictly coastal group (< 50 m depth), two groups in the upper and lower part of the continental shelf (essentially 50-200 m), an epibathyal group (200-450 m) and a group derived from hauls made at depths greater than 450 m. Each assemblage corresponded to a faunistic association with relatively homogeneous and persistent species composition, biomass and density indices.

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Published

2002-06-30

How to Cite

1.
Biagi F, Sartor P, Ardizzone GD, Belcari P, Belluscio A, Serena F. Analysis of demersal fish assemblages of the Tuscany and Latium coasts (north-western Mediterranean). scimar [Internet]. 2002Jun.30 [cited 2021Jan.20];66(S2):233-42. Available from: http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/623

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