@article{fdi:010062234,
title = {{A}ge, growth, mortality, longevity and reproductive biology of the white skate, {R}ostroraja alba ({C}hondrichthyes : {R}ajidae) of the {G}ulf of {G}abes ({S}outhern {T}unisia, {C}entral {M}editerranean)},
author = {{K}adri, {H}. and {M}arouani, {S}. and {B}radai, {M}. {N}. and {B}ouain, {A}. and {M}orize, {E}ric},
language = {{ENG}},
abstract = {{T}he {A}ge, growth, mortality, longevity and reproductive parameters were studied for {R}ostroraja alba from the {G}ulf of {G}abes ({S}outhern {T}unisia, central {M}editerranean {S}ea), collected monthly during 2007 from commercial fisheries. 43.75% of the composition was females and 56.25% males. {A} total of 140 females (44.5 - 160 cm {TL}) and 180 males (39.5 - 150 cm {TL}) were examined to study the reproductive cycle. {A} subsample of 115 specimens (65 females and 50 males, ranging from 39.5 to 160 cm {TL}) was used for age and growth estimation derived from vertebral centra. {T}he oldest female was 35 years and 160 cm {TL}, whereas the oldest male was 32 years and 150 cm {TL}. {T}he von {B}ertalanffy growth parameters were {L} infinity= 177.6 +/- 3.61 cm, k= 0.06 +/- 3.08 year(-1) and t(0)= -1.28 +/- 1.97 10(-1) year for females and {L} infinity= 199.6 +/- 3.66 cm, k= 0.04 +/- 1.9610(-3) year(-1) and t(0)= -1.47 +/- 0.35 10(-1) year for males. {G}rowth was not significantly different between sexes. {T}he maturity size ({TL} 50%) was 119.3 cm (94.20 cm {DW}) for males and 129.4 cm (95.77 cm {DW}) for females. {T}he maturity age ({A}50%) was estimated to 19.69 and 23.47 years respectively for males and females. {S}ize and age maturity were not significantly different between sexes.},
keywords = {{R}ostroraja alba ; age ; growth ; reproduction ; {G}ulf of {G}abes ; {M}editerranean {S}ea ; {MEDITERRANEE} ; {TUNISIE} ; {GABES} {GOLFE}},
journal = {{T}urkish {J}ournal of {F}isheries and {A}quatic {S}ciences},
volume = {14},
numero = {1},
pages = {193--204},
ISSN = {1303-2712},
year = {2014},
DOI = {10.4194/1303-2712-v14_1_21},
URL = {http://www.documentation.ird.fr/hor/fdi:010062234},
}