Eviota masudai, Masuda's dwarfgoby

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Eviota masudai Matsuura & Senou, 2006

Masuda's dwarfgoby
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Eviota masudai   AquaMaps   Data sources: GBIF OBIS
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Image of Eviota masudai (Masuda\
Eviota masudai
Male picture by Aizawa,, M.

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > 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.;  masudai: Named after Hajime Masuda (Ref. 76829).

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

Marine; reef-associated; depth range 2 - 64 m (Ref. 76829). Temperate

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Northwest Pacific: Japan, also Ogasawara and Ryukyu Islands.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 3.2 cm SL male/unsexed; (Ref. 76829); 2.7 cm SL (female)

Short description Morphology | Morphometrics

Dorsal spines (total): 6 - 7; Dorsal soft rays (total): 9-10; Anal spines: 1; Anal soft rays: 9. This species is distinguished by the following characters: D VI-I, 10 (9 in only one paratype); typical males (11 of 14 males) have elongate and filamentous dorsal spines reaching to anterior 4th to 8th soft rays of second dorsal fin; A I, 13; pectoral rays 17-18; including 13-17 branched rays; pelvic rays I, 4, I (fifth ray absent in 2 paratypes), fifth pelvic ray greatly reduced, averaging 14.1% (7.0%-28.0%) of fourth ray length, well developed pelvic-fin membranes extending beyond base of first branch of each pelvic-fin ray; lateral scale rows 23-25; transverse scale rows 6-8; cephalic sensory pore system complete sensu Lachner & Karnella (1980); genital papillae of males non-fimbriate; body light pink; edge of scale pockets reddish brown or brown; forming network on body; a small round bluish black or dark brown blotch on each side of nape just above opercle; 2 short longitudinal reddish brown or brown lines on cheek; the upper running posteriorly from postero-ventral corner of eye to a point midway between eye and posterior end of opercle, the lower line running from corner of mouth to a vertical line through posterior edge of eye; a short longitudinal reddish or dark brown line on anteroventral part of preopercle, just below the lower line on cheek; 2 short longitudinal reddish brown or brown bars or oval blotches on pectoral-fin base; one each on the dorsal and ventral part (Ref. 76829).

Biology     Glossary (e.g. epibenthic)

Occurs in shallow rocky reefs (Ref. 76829).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Matsuura, K. and H. Senou, 2006. Eviota masudai, a new gobiid fish (Teleostei: Perciformes) from Japan. Mem. Natl. Sci. Mus. (41):341-349. (Ref. 76829)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 29 June 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans






Human uses

FAO - Publication: search | FishSource |

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AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 17.4 - 25.2, mean 21.3 °C (based on 52 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01023 (0.00477 - 0.02194), b=3.02 (2.84 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.1   ±0.3 se; based on size and trophs of closest relatives
Resilience (Ref. 120179):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).