Length-Weight Relationships and Density of Bivalve Species in the Shellfish Production Area of Zarzis (Tunisia, Central Mediterranean Sea)Derbali, Abdelkarim (Avtor) Hadj Taieb, Aymen (Avtor) Jarboui, Othman (Avtor) MolluscabivalviaLength-weight relationshipAllometric growthZarzis coastTunisiaThe 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.20222026-07-31 16:48:39Delo ni kategorizirano31449slImetniki avtorskih pravic na prispevkih so avtorji. CC BY-NC 4.0