Autre titre: Etude comparative des caracteres biometriques chez l'huitre perliere Pinctada radiata des iles de kerkennah (sud tunisien)

Authors

  • Abdelkarim DERBALI Institut National des Sciences et Technologies de la Mer (INSTM), BP 1035, 3018 Sfax, Tunisia,
  • O. JARBOUI Institut National des Sciences et Technologies de la Mer (INSTM), BP 1035, 3018 Sfax, Tunisia
  • M. GHORBEL Institut National des Sciences et Technologies de la Mer (INSTM), BP 1035, 3018 Sfax, Tunisia

Keywords:

Ecology, Data, Community composition, Fishery statistics, Statistics, Islands, Shellfish, Population dynamics, Bathymetry, Pinctada radiata, Marine

Abstract

The variability of morphological characters and sexual maturity of the invasive pearl oyster Pinctada radiata were investigated within populations from Kerkennah islands using discriminant tests. During 2007, a total of 2360 and 2422 individuals were collected from sites El Kraten and El Jorf, respectively. The comparison of the averages and the variances of the biometric characters using the Fisher test 'F' and the Student test 't' revealed an important inter-population morphological variability between Kerkennah Island populations. Both multidimensional methods (Principal Components Analysis (ACP) and Discriminating Factor Analysis (AFD)), highlighted the high divergence between P. radiata populations. This finding could be related to the environmental and ecological conditions of the two bathymetric sites.

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Published

2012-01-10

How to Cite

1.
DERBALI A, JARBOUI O, GHORBEL M. Autre titre: Etude comparative des caracteres biometriques chez l’huitre perliere Pinctada radiata des iles de kerkennah (sud tunisien). Bull. Inst. Natl. Sci. Technol. Mer [Internet]. 2012Jan.10 [cited 2024Apr.25];39:5-13. Available from: https://www.instm-bulletin.tn/index.php/bulletin/article/view/471

Issue

Vol. 39 (2012)

Section

Article

ARK

https://n2t.net/ark:/68747/INSTM.Bulletin.v39.471

License

Creative Commons License

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