Ptereleotris evides, Blackfin dartfish : aquarium

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Ptereleotris evides (Jordan & Hubbs, 1925)

Blackfin dartfish
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Ptereleotris evides   AquaMaps   Data sources: GBIF OBIS
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Classification / Names Populärnamn | synonymer | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (strålfeniga fiskar) > Perciformes (Perch-likes) > Microdesmidae (Wormfishes) > Ptereleotrinae
Etymology: Ptereleotris: Greek, pteron = wing, fin + The name of a Nile fish, eleotris (Ref. 45335).  More on authors: Jordan & Hubbs.

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

; marina revassocierade; djupintervall 2 - 15 m (Ref. 1602), usually 2 - 15 m (Ref. 27115).   Tropical; 21°C - 27°C (Ref. 27115); 30°N - 30°S, 32°E - 150°W

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Indo-Pacific: Red Sea and East Africa (Ref. 2798) to the Line and Society islands, north to the Ryukyu and Ogasawara islands, south to New South Wales, Lord Howe Island, and Rapa.

Size / Vikt / Age

Maturity: Lm ?  range ? - ? cm
Max length : 14.0 cm TL hane/ej könsbestämd; (Ref. 9710)

Short description Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt): 7; Mjukstrålar i ryggfenan (totalt): 23-26; Taggstrålar i analfenan 1; Mjukstrålar i analfenan: 23 - 26; Ryggkotor: 26. Light bluish gray in life, shading posteriorly to black; snout blackish; operculum with iridescent blue markings. Chin with a low fleshy protuberance, narrowing posteriorly to a low longitudinal fold. Caudal fin lobes blackish to dark reddish, broad centro-posterior region of fin whitish to yellowish; 1st dorsal fin dull orangish; 2nd dorsal and anal fins largely blackish; pectoral base with an orange to orange-red bar edged in blue. Juveniles with an oval black spot larger than eye at lower base of caudal fin.

Biologi     Ordlista (t.ex. epibenthic)

Occurs in outer reef slopes, also inhabits lagoons and bays. Usually in pairs as adults and in small aggregations as juveniles, Ref. 48637. Monogamous (Ref. 52884). Feeds on zooplankton while hovering 1 to 2 m above the bottom. Swims away from danger rather than retreat to its burrow.

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Monogamous mating is observed as both obligate and social (Ref. 52884).

Main reference Upload your references | referenser | Koordinator : Randall, John E. | Medarbetare

Randall, J.E. and D.F. Hoese, 1985. Revision of the Indo-Pacific dartfishes, genus Ptereleotris (Perciformes: Gobioidei). Indo-Pac. Fish. (7):36 p. (Ref. 528)

IUCN Red List Status (Ref. 120744)

  Least Concern (LC) ; Date assessed: 12 March 2015

CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Akvarium: Kommersiell
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Estimates based on models

Preferred temperature (Ref. 115969): 25.8 - 29.3, mean 28.5 (based on 2808 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245).
Trofisk nivå (Ref. 69278):  3.4   ±0.45 se; Based on food items.
Resiliens (Ref. 120179):  .
Vulnerability (Ref. 59153):  Low vulnerability (10 of 100) .