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> Gobiiformes (Gobies) > Gobiidae (Gobies) > Gobiinae
Etymology: Eviota: No etymology given, suggested by Christopher Scharpt: from Latin 'eu' for 'true' and 'iota' for anything very small, in combination 'truly very small' referring to it as being the smallest vertebrate at the time it has benn described by Jenkins (thus, making the suggestion by Scharpt plausible.; melanosphena: Name from Latinized Greek 'melanos' for black, and 'sphena' meaning wedge, referring to the dark, wedge-shaped mark at the base of the caudal fin; feminine compound adjective..

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

marino associati a barriera corallina; distribuzione batimetrica 0 - 24 m (Ref. 108793). Tropical

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

Western Pacific: Australia.

Size / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 1.3 cm SL maschio/sesso non determinato; (Ref. 108793)

Short description Chiavi di identificazione | Morfologia | Morfometria

Spine dorsali (totale) : 7; Raggi dorsali molli (totale) : 8 - 9; Spine anali: 1; Raggi anali molli: 8 - 9. This small species (almost always less than 1.3 cm SL; smallest gravid female at 0.095 cm SL) is distinguished from its congeners by the following characters: cephalic sensory-pore lacking only the IT pore ( pattern 2); only some pectoral-fin rays are branched; dorsal/anal fin-ray formula of 9/8; fourth pelvic-fin ray with numerous branches (average 9.6); dark subcutaneous body bars 6, beginning at origin of anal fin; caudal-fin base with a dark, wedge-shaped mark and dark spots bordering upper and lower procurrent caudal-fin rays (Ref. 108793).

Life cycle and mating behavior Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve

Main reference Upload your references | Bibliografia | Coordinatore | Collaboratori

Greenfield, D. and S.L. Jewett, 2016. Eviota melanosphena, a new dwarfgoby from Australia (Teleostei: Gobiidae). J. Ocean Sci. Found. 21:71-77. (Ref. 108793)

IUCN Red List Status (Ref. 130435)

Data deficient (DD) ; Date assessed: 29 June 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

Informazioni ulteriori

Trophic ecology
Prede
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Ecology
Ecologia

Population dynamics
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Length-length rel.
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Life cycle
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Egg(s)
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Dinamica popolazioni larvali

Distribution
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Anatomy
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Cervelli
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Physiology
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Visual pigment(s)
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Genetics
Genetica
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Human related
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Stamps, coins, misc.

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Fonti Internet

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00708 (0.00333 - 0.01504), b=3.09 (2.92 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.0 ±0.3 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).

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Eviota melanosphena Greenfield & Jewett, 2016