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Gnatholepis anjerensis (Bleeker, 1851)

Eye-bar goby
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Gnatholepis anjerensis   AquaMaps   Data sources: GBIF OBIS
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Image of Gnatholepis anjerensis (Eye-bar goby)
Gnatholepis anjerensis
Picture by Randall, J.E.


Tanzania country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Collected from Mafia I. (Ref. 41653). Photographed by J.E. Randall (Ref. 28618).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/tz.html
National Fisheries Authority: http://www.isp.msu.edu/AFRICANSTUDIES/PLEA/TAFIRI.HTM
Occurrences: Occurrences Point map
Main Ref: Randall, J.E. and D.W. Greenfield, 2001
National Database:

Common names from other countries

Classification / Names Nomi Comuni | Sinonimi | Catalog of Fishes(Genere, Specie) | ITIS | CoL | WoRMS | Cloffa

> Gobiiformes (Gobies) > Gobiidae (Gobies) > Gobionellinae
Etymology: Gnatholepis: Greek, gnathos = jaw + Greek,lepis = scale (Ref. 45335).
  More on author: Bleeker.

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

marino; salmastro associati a barriera corallina; distribuzione batimetrica 1 - 46 m (Ref. 11441).   Tropical

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

Indo-Pacific: Persian Gulf (Ref.80050) and Red Sea and East Africa to the Hawaiian, Marquesan and Society islands.

Size / Peso / Age

Maturity: Lm ?  range ? - ? cm
Max length : 8.4 cm SL maschio/sesso non determinato; (Ref. 41653)

Short description Morfologia | Morfometria

Spine dorsali (totale): 6 - 7; Raggi dorsali molli (totale): 11; Spine anali 1; Raggi anali molli: 11. Distinguished by the following characteristics: ctenoid scales on head, predorsal midline and pectoral fin base, distinct flap present at end of lower lip; at least three dark spots along first spine of first and second dorsal fins, followed by at least three rows of dark spots or short streaks, pectoral fin with rows of fine dark and white speckles; second dorsal and anal fin rays nearly always I,11; pectoral rays 14-17, modally 16; lateral scales 25-29, modally 27; predorsal scales 7-13, usually 9-10, mostly ctenoid, may be cycloid anteriorly or toward midline; body compressed, width at anus 11.9-28.1% (mean 15.2%) of SL; body stocky in appearance, body depth at anus 19.6-26.6% of SL, body depth at first dorsal fin origin 14.3-27.7% of SL; head compressed, broader ventrally, slightly deeper than wide, HL 26.6-33.3% of SL; head depth at posterior preopercular margin 62.0-83.7% of HL; head width at posterior preopercular margin 53.7-82.2% of HL; head profile bluntly pointed; nape slightly convex behind eyes; mouth subterminal to nearly terminal, slightly oblique; jaws generally reaching to below anterior margin of eye; upper jaw length 32.0-41.5% of HL; upper lip smooth, narrower than lower, lower lip papillose close to teeth, with twist or fold posteriorly, forming triangular flap, lip interrupted at chin; eye moderate to relatively small in large specimens, dorsolateral, 22.7-30.5% of HL; preorbital width 18.2-27.8% of HL; snout bluntly pointed, 22.4-44.4% of HL; posterior naris round to almost triangular, close to anterior margin of eye; anterior naris in short tube, higher on posterior margin of eye, about level with middle of eye or somewhat ventral to it; interorbital narrow, 4.7-11.3% of HL; caudal peduncle compressed, length 12.9-18.6% (mean 16.1%) of SL; caudal peduncle depth 10.7-13.8% of SL (Ref. 92171).

Biologia     Glossario (es. epibenthic)

Solitary or in loose groups in sand (Ref. 90102). Inhabits shallow coastal bays and estuaries on silty sandy substrates with sparse algae-reef or seagrasses (Ref. 48637). Benthic (Ref. 58302). Feeds on organic matter and small invertebrates (Ref. 89972).

Life cycle and mating behavior Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve

Benthic spawner.

Main reference Upload your references | Bibliografia | Coordinatore | Collaboratori

Randall, J.E. and D.W. Greenfield, 2001. A preliminary review of the Indo-Pacific gobiid fishes of the genus Gnatholepis. Ichthyological Bulletin of the J.L.B. Smith Institute of Ichthyology, 69:1-17. (Ref. 41653)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 19 June 2017

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

Pesca: scarso interesse commerciale
FAO(Publication : search) | FishSource |

Informazioni ulteriori

Stati
Aree FAO
Ecosystems
Presenze
Introduzioni
Stocks
Ecologia
Dieta
Prede
Consumo di cibo
Razione
Nomi Comuni
Sinonimi
Metabolismo
Predatori
Ecotossicologia
Riproduzione
Maturità
Deposizione
Fecundity
Uova
Egg development
Age/Size
Accrescimento
Length-weight
Length-length
Length-frequencies
Morfometria
Morfologia
Larve
Dinamica popolazioni larvali
Reclutamento
Abbondanza
Bibliografia
Acquacoltura
Profilo di acquacoltura
Varietà
Genetica
Electrophoreses
Ereditarietà
Malattie
Elaborazione
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Strumenti

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Estimates based on models

Preferred temperature (Ref. 115969): 24.3 - 29, mean 27.7 (based on 808 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5010   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00442 - 0.02163), b=3.05 (2.86 - 3.24), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.4   ±0.4 se; based on size and trophs of closest relatives
Resilienza (Ref. 120179):  Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).
Price category (Ref. 80766):   Very high.