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Title:Length-Weight Relationships and Density of Bivalve Species in the Shellfish Production Area of Zarzis (Tunisia, Central Mediterranean Sea)
Authors:ID Derbali, Abdelkarim (Author)
ID Hadj Taieb, Aymen (Author)
ID Jarboui, Othman (Author)
Files:.pdf PDF - Presentation file, download (1,64 MB)
MD5: B6EA7FC694A0DB52895C62EABA7BFC29
 
URL URL - Source URL, visit https://zdjp.si/en/annales-series-historia-naturalis-32-2022-1/
 
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 present work reports length-weight relationships (LWRs) for the most common and abundant bivalve species found in coastal areas of Zarzis (southern Tunisia). Systematic surveys were carried out during 2018 on soft bottom in the littoral zone down to 1 m depth. This study provides the first results about LWRs and the density levels of 6 species (Ruditapes decussatus, Polititapes aureus, Moerella pulchella, Cerastoderma glaucum, Mactra stultorum and Loripes orbiculatus) distributed among five families. A stock size assessment of these target species revealed abundance values ranging from 0.47 to 6.10 indiv. m-², and biomass values from 1.83 to 10.34 g m-². The results showed negative growth in five species and isometric growth in one species. The data presented herein are essential for the management and conservation for these species.
Keywords:Mollusca, bivalvia, Length-weight relationship, Allometric growth, Zarzis coast, Tunisia
Publication status:Published
Publication version:Version of Record
Publication date:01.01.2022
Year of publishing:2022
Number of pages:229-236
Numbering:32, 1
PID:20.500.12556/DiRROS-31449 New window
UDC:5
DOI:10.19233/ASHN.2022.24 New window
Copyright:Imetniki avtorskih pravic na prispevkih so avtorji. CC BY-NC 4.0
Publication date in DiRROS:31.07.2026
Views:29
Downloads:20
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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:01.01.2022
Applies to:VoR

Secondary language

Language:Italian
Title:Rapporto lunghezza-peso e densità dei bivalvi nella zona di produzione di molluschi di Zarzis (Tunisia, Mare Mediterraneo centrale)
Abstract:L’articolo riporta le relazioni lunghezza-peso (LWR) per le specie di bivalvi più comuni e abbondanti trovate nelle aree costiere di Zarzis (Tunisia meridionale). Indagini sistematiche sono state effettuate durante il 2018 su fondi molli nella zona litorale fino a 1 m di profondità. Lo studio fornisce i primi risultati sulle LWR e i livelli di densità di 6 specie (Ruditapes decussatus, Polititapes aureus, Moerella pulchella, Cerastoderma glaucum, Mactra stultorum e Loripes orbiculatus) distribuite in cinque famiglie. Una valutazione delle dimensioni dello stock di queste specie bersaglio ha rivelato valori di abbondanza che vanno da 0,47 a 6,10 indiv. m-², e valori di biomassa da 1,83 a 10,34 g m-². I risultati hanno evidenziato una crescita negativa in cinque specie e una crescita isometrica in una specie. I dati qui presentati sono essenziali per la gestione e la conservazione di queste specie.
Keywords:Mollusca, bivalvia, rapporto lunghezza-peso, crescita allometrica, costa di Zarzis, Tunisia


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