Some Aspects on the Biology of Striped Threadfins,Polydactylus Plebejus(Family Polynemidae)from the Coastal Waters off Southwestern Taiwan

臺灣西南海域五絲馬鲅生物學之研究

宋薰華(Shing-Hwa Shung) ； 黃朝盛(Chao-Shen Huang) ； 蘇偉成(Wei-Cheng Su)

《臺灣水產學會刊》 20卷2期 (1993/06) Pp. 113-124

https://doi.org/10.29822/JFST.199306.0004

摘要

本文係以鱗片爲年齡形質，研究臺灣東北部蘇澳沿海之冲鰺的年齡與成長。使用標本計有220尾爲1983年12月至1985年3月於南方澳漁港的底拖網漁獲者，本種每年形成二個輪，分別在二月和七月。雌雄別間之反推尾叉長並無顯著差異。利用Walford定差圖法求得von Bertalanffy成長曲線之參數分別爲：極限尾叉長(L(下标 ∞))=63.3 cm，成長係數(K)=0.087，尾叉長爲零之年齡(t(下标 0))=-1.213年。

關鍵字

馬鲅魚 ； 生殖 ； 成長曲線 ； 食性

並列摘要

Age and growth of the white-tongued crevalle,Uraspis helvolus,caught bycommercial bottom trawlers in Suao coastal waters of northeastern Taiwanfrom December 1983 to March 1985 were studied from the annulus counts onthe scales of 220 individuals.The growth resting zones in the scales wereformed twice a year,in February and July,respectively.The back-calculatedfork length has no significant difference between female and male fish.Theparameters of von Bertalanffy growth equation estimated by the Ford-Walfordmethod were as follows:asymptotic length(L(subscript ∞))=63.3 cm in fork length,growcoefficient(K)=0.087,age at zero length(t(subscript 0))=-1.213yr.

並列關鍵字

Striped Threadfin ； Reproduction ； Growth Curve ； Feeding Habits