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Teleostei >
Gobiiformes (Gobies) >
Gobiidae (Gobies) > Sicydiinae
Etymology: Sicydium: Greek, sika, sikya = cucumber ; diminutive (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 居于水底的; 非产卵性溯降河的 (Ref. 92840). 熱帶
Africa: rivers Sanaga to Ntem in Cameroon, the Benito River in Rio Muni (Equatorial Guinea) and the Kouilou River in Republic of Congo; also known from Ivory Coast (Ref. 57403, 79590). Probably more extensively distributed in the region than presently documented (Ref. 79590).
非洲: 在 Yaka 的 Tabou 河, 河 Dodo(象牙海岸); Lokunje 河, Kribi(喀麥隆); Rio Benito(赤道幾內亞), Mombi 河 (剛果)(參考文獻 10702) 與 Ntem 河流域 (喀麥隆) 下游.(參考文獻 27896)
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 8.1 cm TL 雄鱼/尚未辨别雌雄; (Ref. 57403)
背棘 (总数) : 7; 背的软条 (总数) : 10; 臀棘: 1; 臀鳍软条: 9 - 10. Diagnosis: posterior tip of upper jaw extends to level of anterior 1/3 or 1/2 of eye; each half (left and right) of upper jaw with 22-36 long, slender, setiform, tricuspid teeth (Ref. 57403, 79590). Upper lip crenate, with an inner longitudinal furrow and a small median tubercle just posterior to the median notch; 2 pores in preopercular canal; 2-3 suborbital pigment bands (Ref. 57403, 79590).
Amphidromous freshwater species (Ref. 92840). Inhabits fast flowing parts of rivers that have rocky substrates and usually associated with rainforest zones (Ref. 10702, 57403, 79590). Adults apparently spawn in fresh water but the larvae are carried downstream to the sea, metamorphose and migrate back upstream, this cycle explaining the presence of small specimens in coastal waters (Ref. 79590). Maximum observed standard length 6.63cm (Ref. 10702, 79590). Seems evasive and difficult to catch (Ref. 57403, 79590).
栖息于快速地流动有岩石的底部的河的部份而且通常伴随着雨林区域。 (参考文献 10702)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
非洲: 在 Yaka 的 Tabou 河, 河 Dodo(象牙海岸); Lokunje 河, Kribi(喀麥隆); Rio Benito(赤道幾內亞), Mombi 河 (剛果)(參考文獻 10702) 與 Ntem 河流域 (喀麥隆) 下游.(參考文獻 27896)
Harrison, I.J., 1993. The West African sicydiine fishes, with notes on the genus Lentipes (Teleostei: Gobiidae). Ichthyol. Explor. Freshwat. 4(3):201-232. (Ref. 10702)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
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).
