Sicydium crenilabrum : fisheries

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Sicydium crenilabrum Harrison, 1993

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Sicydium crenilabrum
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> Gobiiformes (Gobies) > Gobiidae (Gobies) > Sicydiinae
Etymology: Sicydium: Greek, sika, sikya = cucumber ; diminutive (Ref. 45335).

Environment: milieu / climate zone / depth range / distribution range Ecologie

; zoet water demersaal; amfidroom (Ref. 92840). Tropical

Verspreiding Landen | FAO regio's | Ecosystemen | Voorkomen | Point map | Introducties | Faunafri

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).

Grootte / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 8.1 cm TL mannelijk / geslacht onbekend; (Ref. 57403)

Korte beschrijving Morfologie | Morfometrie

Dorsale stekels (totaal): 7; Dorsale zachte stralen (totaal): 10; Anale stekels 1; Anale zachte stralen: 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).

Biologie     Verklarende woordenlijst (bv. epibenthic)

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).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

Hoofdreferentie Upload your references | Referenties | Coördinator | Medewerkers

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)

Status op de Rode Lijst van het IUCN (Ref. 130435)

  Niet bedreigd (LC) ; Date assessed: 12 May 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

Visserij:
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Estimates based on models

Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 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).
Weerstandsvermogen (Ref. 120179):  Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).
Prijsklasse (Ref. 80766):   Very high.