分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Carangaria/misc (Various families in series Carangaria) >
Polynemidae (Threadfins)
Etymology: Polydactylus: Greek, poly = a lot of + greek, daktylos = finger (Ref. 45335).
More on author: Hora.
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋; 深度上下限 14 - 115 m (Ref. 40958). 熱帶; 26°N - 15°S, 59°E - 74°E (Ref. 57343)
Western Indian Ocean: Arabian Sea.
西印度洋: 阿拉伯海。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 22.2 cm TL 雄鱼/尚未辨别雌雄; (Ref. 121653); 28.5 cm TL (female); 最大体重: 135.00 g (Ref. 121653); 最大体重: 135.00 g
简单描述
检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 9; 背的软条 (总数) : 12 - 13; 臀棘: 3; 臀鳍软条: 11 - 12; 脊椎骨: 24. With 7 pectoral filaments; uppermost extending well beyond posterior tip of pectoral fin. Pectoral fin rays 19-22% of SL; all rays branched except uppermost 1 or 2. Well-developed swim bladder. A large black spot anteriorly on lateral line (Ref. 40958).
7 胸的丝状突起; 最上面的延伸越过胸鳍的后顶端。 胸鳍鳍条 19-22% 的 SL; 所有的鳍条除了最上面的 1 或 2 以外分枝了。 发展良好的泳鳔。 一个大的黑色斑点前面地在侧联机.(参考文献 40958)
Feeds on shrimps and small fishes (Ref. 57343).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
西印度洋: 阿拉伯海。
Motomura, H. and Y. Iwatsuki, 2001. Review of Polydactylus species (Perciformes: Polynemidae) characterized by a large black anterior lateral line spot, with descriptions of two new species. Ichthyol. Res. 48(4):337-354. (Ref. 40958)
人类利用
渔业: 高经济性
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特别资料
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Estimates based on models
Preferred temperature (Ref.
123201): 23.5 - 27.2, mean 25.6 °C (based on 29 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00759 (0.00470 - 0.01224), b=3.05 (2.91 - 3.19), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
营养阶层 (Ref.
69278): 3.9 ±0.66 se; based on food items.
Generation time: 1.9 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
回复力 (Ref.
120179): 高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (19 of 100).
