Stegastes nigricans, Dusky farmerfish : fisheries, aquarium

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Stegastes nigricans (Lacepède, 1802)

Dusky farmerfish
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Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Stegastes nigricans   AquaMaps   Data sources: GBIF OBIS
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Image of Stegastes nigricans (Dusky farmerfish)
Stegastes nigricans
Picture by Randall, J.E.

Klassifizierung / Names Namen | Synonyme | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (Strahlenflosser) > Perciformes (Perch-likes) > Pomacentridae (Damselfishes) > Pomacentrinae
Etymology: Stegastes: Greek, stegastos, -e, -on = covered (Ref. 45335).  More on author: Lacepède.

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

; seewasser riff-verbunden; standorttreu; tiefenbereich 1 - 12 m (Ref. 7247).   Tropical; 30°N - 30°S

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

Indo-Pacific: Red Sea and East Africa to the Line, Marquesas, and Tuamoto islands, north to the Ryukyu and Bonin islands, south to New Caledonia and Tonga; throughout Micronesia. Excluding the Hawaiian Islands (Ref. 7247). Hawaiian population refers to Stegastes marginatus (Ref. 86689).

Size / Gewicht / Alter

Maturity: Lm ?  range ? - ? cm
Max length : 14.0 cm TL Männchen/unbestimmt; (Ref. 4391); common length : 9.0 cm TL Männchen/unbestimmt; (Ref. 5450)

Kurzbeschreibung Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt): 12; Rückenflossenweichstrahlen (insgesamt): 15-17; Afterflossenstacheln 2; Afterflossenweichstrahlen: 12 - 14. Diagnosis: Adults generally brown; dorsal part of head and nape darker, grading to tan on lower part of head and breast. The scales have darker brown margins. The lips are whitish lips; the suborbital is mostly blue; the preopercle and opercle scales with blue centers. The median and pelvic fins are brown; the pectorals are dusky; a well-defined dark brown or blackish spot is sometimes present at base of posteriormost dorsal rays, which distinguishes it from S. lividus where the spot is diffuse. Males in courtship or guarding eggs with broad white bar across middle of body and pale blue stripe from mouth to upper part of pectoral fin (Ref. 510).

Biologie     Fachlexikon (Englisch) (z.B. epibenthic)

Adults inhabit reef flats and lagoon reefs. Frequently occur in colonies associated with live or dead branching staghorn coral (Acropora). Feed on algae, gastropods, sponges, and copepods. Territorial, maintain and 'weed' filamentous algae patches growing on dead coral (Ref. 9710). They attack human intruders without hesitation, sometimes taking painful nips. Particularly aggressive during reproductive periods. The species emit clicking noises during aggressive encounters. Oviparous, males tend the nest visited by several females (Ref. 59295).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

Oviparous, distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Males guard and aerate the eggs (Ref. 205).

Hauptreferenz Upload your references | Referenzen | Koordinator : Allen, Gerald R. | Partner

Allen, G.R. and A.R. Emery, 1985. A review of the Pomacentrid fishes of the genus Stegastes from the Indo-Pacific, with descriptions of two new species. Indo-Pac. Fish. (3):31. (Ref. 510)

IUCN Rote Liste Status (Ref. 123251)


CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Traumatogenic (Ref. 510)





Nutzung durch Menschen

Fischereien: weniger kommerziell; Aquarium: Öffentliche Aquarien
FAO(Publication : search) | FishSource |

Mehr Information

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Stocks
Ökologie
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Ablaichen
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Fecundity
Eier
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Alter/Größe
Wachstum
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Morphometrie
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Estimates based on models

Preferred temperature (Ref. 115969): 25 - 29.3, mean 28.4 °C (based on 3006 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02512 (0.01564 - 0.04035), b=3.02 (2.89 - 3.15), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  2.2   ±0.0 se; based on diet studies.
Generation time: 1.9 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Widerstandsfähigkeit (Ref. 120179):  hoch, Verdopplung der Population dauert weniger als 15 Monate. (K=0.5-1.1).
Verwundbarkeit (Ref. 59153):  Low vulnerability (13 of 100) .
Preiskategorie (Ref. 80766):   Unknown.