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Age, growth, and reproductive biology of the five-lined snapper Lutjanus quinquelineatus around Okinawa-jima Island, southern Japan
Fisheries Science ( IF 1.4 ) Pub Date : 2021-05-03 , DOI: 10.1007/s12562-021-01520-x
Katsuya Araki , Katsunori Tachihara

The age, growth, and reproductive biology of the five-lined snapper Lutjanus quinquelineatus was estimated using 709 specimens (44.2–197.7 mm) collected from November 2012 to November 2014 around Okinawa-jima Island, southern Japan. The oldest age estimated by sectioned otoliths and maximum standard length were 24 years and 192.1 mm for females and 27 years and 197.7 mm for males. The relationship between age and standard length was expressed by the following von Bertalanffy growth equations; female: Lt = 172.2 × {1 − exp[−0.55(t + 0.70)]}; male: Lt = 182.5 × {1 − exp[−0.52(t + 0.70)]}. The spawning season estimated by the gonadosomatic index and histological observations was from May to September, with a peak season from June to August. The length (age) at first maturity was 130.3 mm (2 years) for females and 129.5 mm (1 year) for males. Among the small Lutjanus species, L. quinquelineatus has a long lifespan and matures at a small size and young age.



中文翻译:

日本南部冲绳岛周围的五线鲷鱼Lutjanus quinquelineatus的年龄,生长和生殖生物学

年龄,生长和生殖生物学的五线笛鲷笛quinquelineatus用709个样本(44.2-197.7毫米)收集了2012年11月至2014年11月左右冲绳岛岛,日本南部估计。通过切片的耳石和最大标准长度估计的最老年龄是女性为24岁和192.1毫米,男性是27岁和197.7毫米。年龄与标准身长之间的关系由以下冯·贝塔朗菲增长方程表示;母:L t  = 172.2×{1 − exp [-0.55(t  + 0.70)]};男性:L t  = 182.5×{1 − exp [-0.52(t + 0.70)]}。由性腺机体指数和组织学观察结果估计的产卵季节是5月至9月,旺季是6月至8月。雌性第一次成熟的长度(年龄)为130.3毫米(2年),雄性为129.5毫米(1年)。在小型的Lutjanus物种中,quinquelineatus的寿命长,成熟时的体型较小且年龄较小。

更新日期:2021-05-03
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