Age and growth of Mediterranean albacore
Age and growth of Mediterranean albacore
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地中海长鳍金枪鱼的年龄和生长
DOI：
10.1111/j.1095-8649.2000.tb00269.x
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发表时间：
2000
影响因子：
2
通讯作者：
P. Megalofonou
中科院分区：
文献类型：
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作者：
P. Megalofonou
从爱琴海和爱奥尼亚海采集的1136条长鳍金枪鱼个体的年龄估计为1 - 9岁。男性比女性长得更快，达到更大的尺寸和年龄。两个采样区之间的估计年龄的平均长度没有显着差异。用von Bertalanffy生长模型拟合个体年龄的平均体长，估计两性组合的生长参数为：L∞=94.7 cm，K=0.258，to=-1.354岁。显着差异时，发现地中海长鳍金枪鱼的生长参数与大西洋长鳍金枪鱼确定的。目前还无法确定这两个种群的生长率差异是表型差异还是基因型差异。
Estimated ages of 1136 individual albacore Thunnus alalunga (57-92 cm L F ) from the Aegean and Ionian Sea ranged from 1 to 9 years. Males grew faster and reached a greater size and age than females. No significant differences were found in the mean lengths at estimated ages between the two sampling areas. The von Bertalanffy growth model was fitted to mean lengths of estimated ages of individual fish and estimated growth parameters for the combined sexes were: L∞=94.7 cm, K=0.258, to= - 1.354 years. Significant differences were found when the Mediterranean albacore growth parameters were compared with those determined for Atlantic Ocean albacore. It is not possible to determine if the differences in growth rates for the two populations are phenotypic or genotypic at the present time.