Data/hora: 06/06/2024 09:47:01

Provedor de dados: | 20
País: | Belgium

Título:

Age et croissance de l'allache ou sardinelle ronde (&lt;Sardinella aurita&gt; Valenciennes, 1847) dans la région du Cap Bon (Tunisie)

Age and growth of the round sardine(&lt;Sardinella aurita&gt; Valenciennes, 1847) in the Cap Bon (Tunisia)

دراسة عمر و نمو اللاطشة بجهة الوطن القبلي

Autores: | Gaamour, A.; Missaoui, M.; El Abed, A.; Deniel, Ch.
Data: | 2010-12-13
Ano: | 2001
Palavras-chave: | Allache; Os operculaire; Âge; Croissance Age determination Growth curves Age determination http://aims.fao.org/aos/agrovoc/c_24110.
Resumo: | A new osseous part, the opercula bone, is used to estimate the age of 2099 round sardine Sardinella aurita, Valenciennes, 1847 captured in the Cap Bon area. The period of sampling, with a monthly rhythm, is spread out June 1994 at December 1995 and from June to September 1996. The relation between the length of fish (LF) and the ray of opercula (RT) is LF = 22,25 RT 0,994. The validation of the age estimate method is carried out directly by the monthly follow-up of average marginal lengthening and the percentage of individuals with marginal hyaline zone. This study showed that the round sardine has a double cycle of growth per year. The analysis of the key age-length shows that the females dominate in the majority of the age groups. The parameters of growth in length according to the model of Von Bertalanffy are estimated by direct enumeration of the hyaline zones and retro-calculated. The growth curves obtained by using retrocalculated data describe better the growth of the round sardine in the Cap Bon area.
Tipo: | Journal Contribution
Idioma: | Francês

Identificador:

Bulletin de l'institut national des sciences et technologies de la mer, 28. p. 9-22

0330-0080

http://hdl.handle.net/1834/3784

Editor: | INSTM