Feeding ecology of Squalus megalops (Macleay, 1881) and S. blainvillei (Risso, 1827) (Chondrichthyes: Squalidae) in the Gulf of Gabes (Tunisia, Central Mediterranean Sea)

Authors

  • Sondes MAROUANI Université de Carthage. Institut National des Sciences et Technologie de la Mer - INSTM. Sfax
  • Sami KARAA Université de Carthage. Institut National des Sciences et Technologie de la Mer - INSTM. Sfax
  • Mohamed Nejmeddine BRADI Université de Carthage. Institut National des Sciences et Technologie de la Mer - INSTM. Sfax

Keywords:

Variance analysis, Multivariate analysis, Aquatic crustaceans, Marine fish, Fishing, Fishing vessels, Diet, Megalopae, Marine, Squalus megalops, Squalus blainvillei, Tunisia, Gulf of Gabes

Abstract

In this study, the diet of S. megalops and S. blainvillei in the Gulf of Gabes (Central Mediterranean Sea) was investigated between 2007 and 2009, by collecting monthly samples of these two species from local fishing vessels. In the stomachs of both species, teleosts were the dominant prey items, and crustaceans, molluscs, and annelids, were found in lower abundance. A three-factor multivariate analysis of variance (MANOVA) demonstrated significant differences in diet related to size, season and sex in S. megalops but not related to size in S. blainvillei.

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Published

2018-10-16

How to Cite

1.
MAROUANI S, KARAA S, BRADI MN. Feeding ecology of Squalus megalops (Macleay, 1881) and S. blainvillei (Risso, 1827) (Chondrichthyes: Squalidae) in the Gulf of Gabes (Tunisia, Central Mediterranean Sea). Bull. Inst. Natl. Sci. Technol. Mer [Internet]. 2018Oct.16 [cited 2024May4];45:65-9. Available from: https://www.instm-bulletin.tn/index.php/bulletin/article/view/172

Issue

Vol. 45 (2018): Special issue : Biodiv 2017 Actes de la conférence Méditerranéenne

Section

Article

ARK

https://n2t.net/ark:/68747/INSTM.Bulletin.v45.172

License

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

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