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Title:Status of the Exploited Clam Ruditapes decussatus in the Littoral Zone of Sfax, Tunisia
Authors:ID Ben Mohamed, Nour (Author)
ID Derbali, Abdelkarim (Author)
Files:.pdf PDF - Presentation file, download (1,57 MB)
MD5: DD37469845632806079CC31A6DA886BB
 
URL URL - Source URL, visit https://zdjp.si/wp-content/uploads/2024/06/Annales-SHN-34-2024-1_Nour-BEN-MOHAMED-Abdelkarim-DERBALI.pdf
 
Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo IRRIS - Institute IRRIS for Research, Development and Strategies of Society, Culture and Environment
Abstract:The natural populations of Ruditapes decussatus in Tunisia are heavily harvested. The clam harvesting sector is of paramount importance for the local fishing industry. This study was performed to estimate stocks and provide a management plan for natural populations along the Sfax coasts, as the area prepares to resume operations after a 3-year hiatus from exploitation. The results have revealed significant density fluctuation of this bivalve in the study area, which was roughly divided into six sites. The stock density ranged from 0 to 8 ind m-2, and biomass values varied from 0 to 54 g m-2. The total biomass amounted to 115.4 tons, with abundance levels exceeding 22.45 million individuals across an area of 3,867 hectares. The sampled individuals ranged in size from 2 to 59 mm. It was observed that the spread of the species was strongly affected by several abiotic parameters. In order to sustainably exploit this resource, guidelines are necessary to prevent overfishing and restore the stock to sustainable levels.
Keywords:Ruditapes decussatus, stock assessment, cartography, population structure, Sfax coasts, Tunisia
Publication status:Published
Publication version:Version of Record
Publication date:01.01.2024
Year of publishing:2024
Number of pages:137-144
Numbering:34, 1
PID:20.500.12556/DiRROS-30831 New window
UDC:5
DOI:10.19233/ASHN.2024.18 New window
Copyright:Imetniki avtorskih pravic na prispevkih so avtorji. CC BY-NC 4.0
Publication date in DiRROS:06.07.2026
Views:25
Downloads:18
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Record is a part of a journal

Title:Annales: Anali za istrske in mediteranske študije. Series Historia Naturalis
Shortened title:Annales, Series Historia Naturalis
Publisher:Zgodovinsko društvo za južno Primorsko - Koper; Inštitut IRRIS za raziskave, razvoj in strategije družbe, kulture in okolja
ISSN:1408-533X
COBISS.SI-ID:71951360 New window

Licences

License:CC BY-NC 4.0, Creative Commons Attribution-NonCommercial 4.0 International
Link:http://creativecommons.org/licenses/by-nc/4.0/
Description:A creative commons license that bans commercial use, but the users don’t have to license their derivative works on the same terms.
Licensing start date:01.01.2024
Applies to:VoR

Secondary language

Language:Italian
Title:Stato dello sfruttamento della vongola verace Ruditapes decussatus nella zona litorale di Sfax, Tunisia
Abstract:Le popolazioni naturali di Ruditapes decussatus in Tunisia vengono pesantemente sfruttate. Il settore della raccolta delle vongole è di fondamentale importanza per l’industria della pesca locale. Questo studio è stato condotto per stimare gli stock e fornire un piano di gestione per le popolazioni naturali lungo le coste di Sfax, mentre l’area si prepara a riprendere le attività dopo una pausa di 3 anni dallo sfruttamento. I risultati hanno rivelato una significativa fluttuazione della densità di questo bivalve nell’area di studio, suddivisa approssimativamente in sei siti. La densità dello stock variava da 0 a 8 ind m-2 e i valori di biomassa variavano da 0 a 54 g m-2. La biomassa totale ammontava a 115,4 tonnellate, con livelli di abbondanza superiori a 22,45 milioni di individui su un’area di 3.867 ettari. Gli individui campionati avevano dimensioni comprese tra 2 e 59 mm. È stato osservato che la diffusione della specie è fortemente influenzata da diversi parametri abiotici. Per sfruttare in modo sostenibile questa risorsa, sono necessarie linee guida per prevenire la raccolta eccessiva e riportare lo stock a livelli sostenibili.
Keywords:Ruditapes decussatus, valutazione dello stock, cartografia, struttura della popolazione, coste di Sfax, Tunisia


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