Morphological Differences Between two Populations of the Little Tunny, Euthynnus alletteratus (Rafinesque, 1810) in Tunisian Waters (Central Mediterranean Sea)
Morphological Differences Between two Populations of the Little Tunny, Euthynnus alletteratus (Rafinesque, 1810) in Tunisian Waters (Central Mediterranean Sea)
Hassen Allaya1,2,*, Abderraouf Ben Faleh1, Manel Rebaya1, Sonia Zrelli3, Abdallah Hattour2, Jean-Pierre Quignard4 and Monia Trabelsi1
Schematic drawing of Euthynnus alletteratus body with measured dimensions: snout sength (SnL), eye diameter, head length (HL), distance of pectoral fin (DP), distance of the first dorsal fin (DD1), distance of the second dorsal fin (DD2), distance of ventral fin (DV), distance of anal fin (DA), standard length (SL), fork length and total length (TL).
The first (PC1) and second (PC2) principal component analysis for eleven morphometric characters in 64 individuals of E. alletteratus from Tunisia (□, Δ individuals belonging to Zarzis and Mahdia sampling sites, respectively).
Canonical variate analysis (CVA) of the 11 morphometric measurements examined between individuals of E. alletteratus, (□, Δ individuals belonging to Zarzis and Mahdia sampling sites, respectively (probability of the correct classification= 95.31 %)).
