Ptereleotris randalli, Brazilian dartfish : aquarium

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Ptereleotris randalli Gasparini, Rocha & Floeter, 2001

Brazilian dartfish
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Ptereleotris randalli   AquaMaps   Data sources: GBIF OBIS
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Image of Ptereleotris randalli (Brazilian dartfish)
Ptereleotris randalli
Picture by Luiz, Jr., O.

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> Gobiiformes (Gobies) > Microdesmidae (Wormfishes) > Ptereleotrinae
Etymology: Ptereleotris: Greek, pteron = wing, fin + The name of a Nile fish, eleotris (Ref. 45335);  randalli: Named for John E. Randall..

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

marien rifbewoner; diepte 8 - 70 m (Ref. 84213). Tropical

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Southwest Atlantic: endemic to Brazil.

Grootte / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 8.7 cm SL mannelijk / geslacht onbekend; (Ref. 84213); 4.9 cm SL (female)

Korte beschrijving Morfologie | Morfometrie

Dorsale stekels (totaal): 7; Dorsale zachte stralen (totaal): 22-24; Anale stekels 1; Anale zachte stralen: 21 - 23. This species is distinguished from its Atlantic congeners by having the following characters: dorsal and anal fins with bright orange-yellow submarginal bands; second dorsal and anal fins comparatively low, slightly elevated anteriorly; short caudal fin, 5ht and 6th rays prolonged as filaments; short pelvic fins, about the same length as pectorals (Ref. 84213).

Biologie     Verklarende woordenlijst (bv. epibenthic)

Used in the aquarium trade under the name Opistognathus leitoso. The population is declining fast in some areas of the Brazilian coast (mainly off the States of Espirito Santo and Bahia) due to commercial exploration of the calcareous algae banks. This species hovers over its burrow feeding on plankton and dives headfirst in to the burrow when threatened. Found usually over sandy bottom close to reefs, but also common over sand patches as small as 10 cm in diameter, enclosed by rocky areas or in calcareous algae (Lithothamnion sp.) banks (Ref. 84213). Maximum depth from Ref. 126840.

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

Hoofdreferentie Upload your references | Referenties | Coördinator : Randall, John E. | Medewerkers

Gasparini, J.L., L.A. Rocha and S.R. Floeter, 2001. Ptereleotris randalli n. sp., a new dartfish (Gobioidei: Microdesmidae) from the Brazilian coast. aqua, J. Ichthyol. Aquat. Biol. 4(3):109-114. (Ref. 84213)

Status op de Rode Lijst van het IUCN (Ref. 130435)

  Niet bedreigd (LC) ; Date assessed: 23 March 2011

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

Aquarium: Commercieel
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Estimates based on models

Preferred temperature (Ref. 123201): 24.6 - 27.6, mean 27.2 °C (based on 58 cells).
Fylogenetische diversiteitsindex (Ref. 82804):  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).
Trofisch niveau (Ref. 69278):  3.3   ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).