Some biological aspects of marbled spinefoot (Siganus rivulatus) were determined from a southern Aegean Sea small-scale fishery. A total of 721 individuals were captured (335 females, 279 males and 87 immature) and sex ratio was found to be 1:1.27, female to male. Total lengths and ages of individuals ranged between 9.0–26.1 cm and 1–9 years. Asymptotic length (L∞), growth coefficient (K) and the theoretical age at zero length (t0) were estimated to be 27.7 cm, K = 0.162 y−1 and t0 = −1.87 y. Length at maturity value was determined as 16.6 cm for females and 16.84 cm for males. Although S. rivulatus is one of the target species for small-scale and recreational fishery in the Turkish coast of the southern Aegean Sea, especially in Gökova Bay, official landing data is lacking for Turkey. Results of the present study are of crucial importance for further fisheries management of this invasive species.

中文翻译：

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对来自爱琴海南部土耳其海岸的侵入性大理石脊足（Siganus rivulatus，Forsskål 1775）的某些生物学方面的贡献

大理石纹脊足的一些生物学特征（河豚) 是从爱琴海南部的小规模渔业中确定的。共捕获 721 人（335 名女性、279 名男性和 87 名未成年人），发现性别比为 1:1.27，女性与男性。个体的总长度和年龄在 9.0-26.1 厘米和 1-9 岁之间。渐近长度 (大号∞), 增长系数 (ķ）和零长度的理论年龄（吨0) 估计为 27.7 厘米，ķ= 0.162 年-1和吨0= -1.87 岁。成熟时的长度被确定为女性 16.6 厘米和男性 16.84 厘米。虽然S. rivulatus是爱琴海南部土耳其海岸，尤其是格科瓦湾小规模和休闲渔业的目标物种之一，土耳其缺乏官方登陆数据。本研究的结果对于这种入侵物种的进一步渔业管理至关重要。