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

2012 ◽  
Vol 8 (4) ◽  
pp. 388-396 ◽  
Author(s):  
Hasna Kadri ◽  
Sondes Marouani ◽  
Bechir Saïdi ◽  
Mohamed Nejmeddine Bradai ◽  
Mohamed Ghorbel ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
Central Mediterranean ◽  
Gulf Of Gabes ◽  
Gulf Of Gabès ◽  
Central Mediterranean Sea ◽  
Growth And Reproduction

First data on the age, growth and sexual maturity of the piked spurdog, Squalus megalops (Chondrichthyes: Squalidae), in the Gulf of Gabès (central Mediterranean Sea)

2016 ◽  
Vol 67 (5) ◽  
pp. 578 ◽  
Author(s):  
Sondes Marouani ◽  
Hasna Kadri ◽  
Mohamed Nejmeddine Bradai
Keyword(s):  
Mediterranean Sea ◽  
Growth Parameters ◽  
Natural Mortality ◽  
Central Mediterranean ◽  
Gulf Of Gabes ◽  
Band Formation ◽  
Mortality Estimation ◽  
Gulf Of Gabès ◽  
Central Mediterranean Sea ◽  
Males And Females

The occurrence of the piked spurdog (Squalus megalops) in the Gulf of Gabès (Tunisia, central Mediterranean Sea) was recently confirmed. The present study is the first to report the age, growth, longevity, natural mortality and size and age at maturity of this species in the Mediterranean Sea, precisely in the Gulf of Gabès. Marginal increment and edge analysis suggested annual band formation. Age estimates ranged from 0 to 26 and from 0 to 29 years for males and females respectively. Von Bertalanffy growth parameters derived from length-at-age data were: the theoretical asymptotic length L∞=82.31±1.55cm, the growth-rate coefficient k=0.06±0.003 years–1, the theoretical age at length zero t0=–3.89±0.25 years for females; and L∞=68.55±0.98cm, k=0.08±0.003 years–1, t0=–4.65±0.25 years for males. Males and females reached maturity at 44.36- and 56.41-cm total length, corresponding to 8.39 and 15.38 years respectively. Longevity estimates were 32.85 and 46.11 years for males and females respectively. On the basis of life-history parameters, natural mortality estimation M ranged from 0.14 to 0.17.

Age, growth, sexual maturity and reproduction of the thornback ray,Raja clavata(L.), of the Gulf of Gabès (south-central Mediterranean Sea)

2013 ◽  
Vol 10 (4) ◽  
pp. 416-425 ◽  
Author(s):  
Hasna Kadri ◽  
Sondes Marouani ◽  
Bechir Saïdi ◽  
Mohamed Nejmeddine Bradai ◽  
Abderrahmen Bouaïn ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
Sexual Maturity ◽  
Central Mediterranean ◽  
Gulf Of Gabes ◽  
Gulf Of Gabès ◽  
South Central ◽  
Thornback Ray ◽  
Raja Clavata ◽  
Central Mediterranean Sea

Spatial and temporal variations of inshore demersal fishes in the Gulf of Gabes (Tunisia, Central Mediterranean Sea)

2019 ◽  
Vol 23 (3) ◽  
pp. 521-530
Author(s):  
Henda El Lakhrach ◽  
Abdallah Hattour ◽  
Othman Jarboui ◽  
Mohamed Nejmeddine Bradai ◽  
Alfonso Angel Ramos Esplá
Keyword(s):  
Mediterranean Sea ◽  
Temporal Variations ◽  
Spatial And Temporal Variations ◽  
Central Mediterranean ◽  
Gulf Of Gabes ◽  
Gulf Of Gabès ◽  
Central Mediterranean Sea ◽  
Demersal Fishes

Occurrence of Brown Ring Disease in Carpet Shell ClamsRuditapes decussatusfrom the Gulf of Gabes (Tunisia, Central Mediterranean Sea)

2011 ◽  
Vol 30 (3) ◽  
pp. 797-804
Author(s):  
Monia El Bour ◽  
Mohamed Dellali ◽  
Imene Boukef ◽  
Fatma Lakhal ◽  
Radhia Mraouna ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
Central Mediterranean ◽  
Gulf Of Gabes ◽  
Gulf Of Gabès ◽  
Central Mediterranean Sea ◽  
Brown Ring Disease
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