Common names from other countries
Teleostei >
Eupercaria/misc (Various families in series Eupercaria) >
Gerreidae (Mojarras)
Etymology: Gerres: Latin, gerres = a kind of anchovies; cited by Plinius.
More on author: Günther.
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋; 半咸淡水 底中水层性; 深度上下限 ? - 60 m (Ref. 57394). 熱帶; 18°N - 17°S, 29°W - 14°E
Eastern Atlantic: west African coast, from Guinea to Congo (Ref. 57394). Also reported from Senegal (Ref. 4323, 28587, 33587), Gambia (Ref. 5476), Guinea-Bissau (Ref. 26999) and as far south as Angola (Ref. 3166).
東大西洋: 塞內加爾到安哥拉.(參考文獻 3166)
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm 38.8, range 7 - ? cm
Max length : 20.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 57394); common length : 15.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 2683)
背棘 (总数) : 9; 背的软条 (总数) : 10; 臀棘: 3; 臀鳍软条: 8. Diagnosis: body oblong and compressed; snout pointed, shorter than eye diameter; mouth strongly protrusible; nostrils contiguous, situated at midpoint between eye and snout tip; dorsal fin deeply notched; pectoral fins long, reaching to, or extending beyond anal-fin origin; large cycloid scales; scales of the interocular space not reaching anterior border of eyes; spinous part of dorsal fin greyish, without a black spot at tip (Ref. 57394).
Coloration: back olivaceous-brown, sides silvery, with longitudinal dark bands; young individuals with narrow, dark vertical bars on sides; spinous part of dorsal fin distally greyish, but without a distinct black spot at tip; juveniles with 2 longitudinal series of dark spots on dorsal fin (Ref. 57394).
Occurs on littoral mud and sand bottoms to about 60 m depth (Ref. 57394). Often enters estuaries and coastal lagoons (Ref. 7375) during reproduction (Ref. 57394). Feeds on fish, shrimps, mollusks, plankton and detritus (Ref. 28587).
时常进入河口与岸边泻湖。 (参考文献 7375) 吃鱼,虾,软件动物,浮游生物与碎屑。 (参考文献 28587)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
東大西洋: 塞內加爾到安哥拉.(參考文獻 3166)
Roux, C., 1986. Gerridae. p. 325-326. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels; MRAC, Tervuren; and ORSTOM, Paris. Vol. 2. (Ref. 4323)
CITES (Ref. 128078)
Not Evaluated
人类利用
渔业: 商业性
工具
特别资料
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网络资源
Estimates based on models
Preferred temperature (Ref.
115969): 23 - 28, mean 26.5 (based on 78 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00564 - 0.01943), b=3.07 (2.91 - 3.23), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.2 ±0.51 se; based on food items.
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).
Climate Vulnerability (Ref.
125649): High vulnerability (64 of 100).