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Eviota smaragdus Jordan & Seale, 1906

Emerald dwarfgoby
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Eviota smaragdus   AquaMaps   Data sources: GBIF OBIS
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Image of Eviota smaragdus (Emerald dwarfgoby)
Eviota smaragdus
Picture by Kuwabara, J.

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.
More on authors: Jordan & Seale.

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

Marine; reef-associated; depth range 0 - 40 m (Ref. 107299). Tropical; 30°N - 30°S

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

Western Pacific: Japan (Ryukyu and Ogasawara islands), Taiwan, the Philippines and south to Australia and Norfolk Is.; east to Vanuatu, Fiji, Wallis and Futuna, Tonga and Samoa, including Palau, Guam and Marshall Islands in Micronesia.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 2.3 cm SL male/unsexed; (Ref. 1602)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 7; Dorsal soft rays (total): 8 - 9; Anal spines: 1; Anal soft rays: 7 - 8. This species is distinguished by the following characters: complete cephalic sensory-canal pore system (pattern 1); the fifth pelvic-fin ray 10-40% (usually 20%) of fourth ray; some pectoral-fin rays are branched; dorsal/anal-fin formula 9/8; presence of a prominent occipital spot; dorsal midline of body with a series of small dark spots along the dorsal-fin bases; dark bars present crossing the nape in advance of dorsal fin; caudal-peduncle depth 13.4-14.9% SL (Ref. 107299).

Biology     Glossary (e.g. epibenthic)

Inhabits shallow waters, often including tide pools of exposed seaward reefs (Ref. 37816, 116739), usually in high-tide splash zones and at shallow depths (Ref. 107299).

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

Main reference Upload your references | References | Coordinator | Collaborators

Myers, R.F., 1991. Micronesian reef fishes. Second Ed. Coral Graphics, Barrigada, Guam. 298 p. (Ref. 1602)

IUCN Red List Status (Ref. 130435: Version 2024-1)

  Least Concern (LC) ; Date assessed: 09 March 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: of no interest
FAO - Publication: search | FishSource |

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Internet sources

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 | National databases | 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): 24.7 - 29.3, mean 28.3 °C (based on 1537 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=3.01 (2.83 - 3.19), 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).
Nutrients (Ref. 124155):  Calcium = 374 [160, 1,182] mg/100g; Iron = 1.74 [0.76, 3.78] mg/100g; Protein = 18 [16, 20] %; Omega3 = 0.175 [0.057, 0.516] g/100g; Selenium = 33.1 [10.6, 89.5] μg/100g; VitaminA = 121 [25, 572] μg/100g; Zinc = 4.49 [2.47, 7.46] mg/100g (wet weight);