Age, growth and reproduction ofRaja miraletus(Linnaeus, 1758) (Chondrichthyes: Rajidae) of the Gulf of Gabès (Tunisia, Central Mediterranean Sea)

Age, growth and length-weight relationship of the rough skate, Raja radula (Linnaeus, 1758) (Chondrichthyans: Rajidae), from the Gulf of Gabes (Tunisia, Central Mediterranean)

“…These methods focus on incremental patterns of growthband pairs throughout the year. The annual periodicity in band pair formation observed in the Gulf of Gabes is supported by other studies [8,23] . According to the MIR it was found that age band growth was annual.…”

“…Similar patterns were observed for Raja miraletus [23] , R. radula and Raja clavata from off Tunisian coast [8] .…”

Distribution and morphometric characters of the Mediterranean longnosed skate, Dipturus oxyrinchus (Chondrichthyans: Rajidae) in the Gulf of Gabes (Tunisia, Central Mediterranean)

“…In addition, changes in physiological conditions, different amounts of available food, life span or growth increment can affect the b growth exponent [20,21] . The occurrence of sexual differences in growth is well documented in elasmobranchs, with females usually growing longer [22][23][24][25] .…”

Distribution and Morphometric Characters of the Mediterranean Brown Ray, Raja Miraletus (Chondrichthyes: Rajidae) in the Gulf of Gabes (Tunisia, Central Mediterranean)

“…Previously, we demonstrated that differences in growth between sexes are a common feature in Raja species. Females typically attain larger size than males, but they grow more slowly (Kadri et al 2012; 2013 a; 2013 b). It is important to mention that weight-size relationships can provide useful information about the increase in weight of a population and this parameter could also be important for comparative studies between populations (Mori et al 1990).…”