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); malagasyensis: Named for old name of Madagascar, Malagasy, its type locality (Ref. 40958).
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋; 半咸淡水 居于水底的; 深度上下限 5 - 62 m (Ref. 40958). 热带; 1°N - 35°S, 25°E - 51°E (Ref. 57343)
Western Indian Ocean: Kenya, Mozambique, South Africa, and Madagascar. Likely to occur in Somalia and Tanzania.
西印度洋: 肯亚，莫桑比克，南非与马达加斯加。 或许出现在索马利亚与坦尚尼亚。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 14.9 cm SL 雄鱼/尚未辨别雌雄; (Ref. 40958)
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: 12; 脊椎骨: 24. With 6 pectoral filaments; uppermost not reaching to (or extending slightly beyond) posterior tip of pectoral fin. Pectoral fin, rays long, 21-26% of SL; fin base long, 10-12% of SL; all rays branched except uppermost 1 or 2. Second dorsal spine long, 7-9% of SL. Well-developed swim bladder. A large black spot anteriorly on lateral line (Ref. 40958).
6 胸的丝状突起; 在最上不延伸到 (或延伸略超过) 胸鳍的后顶端。 胸鳍, 鳍条长又 21-26% 的 SL; 鳍的基底长的,10-12% SL; 所有的鳍条除了最上面的 1 或 2 以外分枝了。 第二背鳍棘长的,7-9% 的 SL。 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)
Found in estuaries as well as offshore (Ref. 57343).
发现于河口了以及外海.(参考文献 57343)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
西印度洋: 肯亚，莫桑比克，南非与马达加斯加。 或许出现在索马利亚与坦尚尼亚。
Motomura, H., 2004. Threadfins of the world (Family Polynemidae). An annotated and illustrated catalogue of polynemid species known to date. FAO Spec. Cat. Fish. Purp. Rome: FAO. 3:117 p. (Ref. 57343)
人类利用
渔业: 没有兴趣
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Estimates based on models
Preferred temperature (Ref.
123201): 24 - 27.5, mean 26.4 °C (based on 50 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01738 (0.00751 - 0.04023), b=3.05 (2.86 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.5 ±0.5 se; based on size and trophs of closest relatives
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 (10 of 100).
