Nom du corpus

Corpus Systématique Animale

Titre du document

Detection of environmental impacts by bottom trawling on Posidonia oceanica (L.) Delile meadows: sensitivity of fish and macroinvertebrate communities

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • benthos
  • community structure
  • seagrass
  • habitat degradation
  • Mediterranean Sea
Nom du fichier dans la ressource
Poissons_v2b_003581
Auteur(s)
  • P. Sánchez-Jerez 1
  • A. A. Ramos Esplá 1
Affiliation(s)
  • 1) Dept. Ciencias Ambientales y Recursos Naturales, Universidad de Alicante, Ap.C. 99, 03080, Alicante, Spain
Résumé

Along the Mediterranean coast,Posidonia oceanica (L.) Delile meadows have a great ecological and economical importance. However, there is a general regression of these meadows due to human activities such as illegal bottom trawling, may be affecting to overall ecosystem health. We examined changes in the community structure of mobile fauna associated withP. oceanica meadows at different spatial scales and taxonomic levels. The aim of this paper was to identify the most efficient taxonomic level to use in environmental impact studies of bottom trawling. At the macroscale level (10 to 100 m), there were significant differences between sites in the densities of some fish species and also the total fish assemblage structure, at both family and species taxonomical levels. At the microscale (0.1 to 1 m), some species of amphipods and isopods showed significant differences in their population densities. In the overall analysis of community structure, the coarse taxonomical levels, such as phyla and class, did not show significant differences, however amphipods and isopods showed significant differences at family and species levels. From these results, both study scales are required to detect changes onPosidonia meadows' fauna. Monitoring of some fish species such asDiplodus annularis (Linnaeus, 1758) and the overall fish assemblage as well as the structure of the amphipod and isopod communities appears to be the most efficient tool in the assessment of environmental impacts by bottom trawling onP. oceanica meadows.

Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
Catégories Scopus
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - Pollution
Identifiant ISTEX
08A563659611F356C434E0008B3A1BF0D400CC61
Revue

Journal of Aquatic Ecosystem Health

Année de publication
1996
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
9.772
Sous-corpus
  • Poissons
Type de publication
Journal
ark:/67375/1BB-FXLQWFXD-Q
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