Gobionellus microdon, Estuary goby

Gobionellus microdon (Gilbert 1892)

Estuary goby
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Gobionellus microdon
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Classificatie / Names Populaire namen | Synoniemen | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

> Gobiiformes (Gobies) > Gobiidae (Gobies) > Gobionellinae
Etymology: Gobionellus: Diminutive of Latin, gobius = gudgeon (Ref. 45335).  More on author: Gilbert.

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

; zoetwater; brakwater demersaal.   Tropical

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

Eastern Central Pacific: from Sonora, Mexico to Guayaquil, Ecuador; including freshwaters (above tidal influence) of Rio Grande at Miraflores in Panama.

Size / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 15.6 cm SL mannelijk/geslacht niet bekend; (Ref. 55435); 11.9 cm SL (female)

Korte beschrijving Morfologie | Morfometrie

Dorsale stekels (totaal): 6; Dorsale zachte stralen (totaal): 12-14; Anale stekels 1; Anale zachte stralen: 13 - 14. This species differs from its congeners by the following characters: mouth terminal and slightly oblique; upper pectoral fin base dusky, not dark; a large dark patch above the pectoral fin base on trunk just beneath nape, most distinct in males and large females; second dorsal fin with 13 elements, anal fin with 14 elements; the first and second dorsal fins are not broadly connected; small ctenoid scales on the body posteriorly, with cycloid scales limited to anteriormost portion of trunk, 50-73 in a lateral series; nape with many small scales; first gill arch with 8 thin rakers on ceratobranchial and 7 on epibranchial; third transverse suborbital row of free neuromasts on cheek extending dorsally above horizontal midcheek row ‘b’, usually to orbit; horizontal midcheek row ‘b’ not extending forward beyond third transverse suborbital row (Ref. 55435).

Biologie     Verklarende woordenlijst (b.v. epibenthic)

Inhabits estuaries and brackish mangrove creeks. Also recorded from rivers (Ref. 45915).

Life cycle and mating behavior Geslachtsrijpheid | Voortplanting | Kuitschieten | Eieren | Fecundity | Larven

Voornaamste referentie Upload your references | Referenties | Coördinator | Medewerkers

Pezold, F., 2004. Redescriptions and synonymies of species of the American-west African genus Gobionellus (Teleostei: Gobiidae) with a key to species. Copeia 2004(2):281-297. (Ref. 55435)

Status op de Rode Lijst van het IUCN (Ref. 123251)

  Niet bedreigd (LC) ; Date assessed: 08 November 2018

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaarlijk voor mensen

  Harmless





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Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5078   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00392 - 0.01167), b=3.05 (2.90 - 3.20), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic level (Ref. 69278):  3.5   ±0.4 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref. 120179):  Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Preliminary K or Fecundity.).
Kwetsbaarheid (Ref. 59153):  Low to moderate vulnerability (30 of 100) .