Research Report

Stock Assessment of the Common Octopus (Octopus vulgaris) in Monastir; the Mid-eastern Coast of Tunisia  

Widien Khoufi1 , Chedia Jabeur2 , Amina Bakhrouf2
1 Laboratory of marine resources, National Institute of Marine Sciences and Technology, Tunisia
2 Laboratory of Analysis, Treatment and Valorization of Products and Pollutants of the Environment, Faculty of Pharmacy, Tunisia
* The authors who contribute equally
Author    Correspondence author
International Journal of Marine Science, 2012, Vol. 2, No. 8   doi: 10.5376/ijms.2012.02.0008
Received: 02 Nov., 2012    Accepted: 08 Nov., 2012    Published: 13 Nov., 2012
© 2012 BioPublisher Publishing Platform
This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Preferred citation for this article:

Khoufi et al., 2012, Stock Assessment of the Common Octopus (Octopus vulgaris) in Monastir; the Mid-eastern Coast of Tunisia, International Journal of Marine Science, Vol.2, No.8 57-61 (doi: 10.5376/ijms.2012.02.0008)

Abstract
The common octopus, (Octopus vulgaris Cuvier, 1797) is widely distributed through the world. It represents an important resource with high economic value. It is exploited by trawl and by other gears such as trammel net, pots and it is also captured by diving. Although the multitude of assessment techniques, few fisheries cephalopods were well managed. In Tunisia, common octopus (Octopus vulgaris) is captured particularly in southern coast and the Sahel defined by three regions (Mahdia, Sousse and Monastir). Our study constitutes the first assessment stock in Monastir situated in the mid of the eastern coasts of Tunisia. Using surplus production models, an under fishing state of Octopus in the East of Tunisia is shown. This study confirms also the necessity of the incorporation of environmental parameters for a better explanation of the variability of common octopus abundance and the importance of these results in the assessment and management of this species. 
Keywords
Octopus vulgaris; Stock; East of Tunisia; Management; Surplus production model
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