Stegastes nigricans, Dusky farmerfish : fisheries, aquarium

Stegastes nigricans (Lacepède, 1802)

Dusky farmerfish
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Stegastes nigricans   AquaMaps   Data sources: GBIF OBIS
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Stegastes nigricans
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Classification / Names Nombres comunes | Sinónimos | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterígios (peces con aletas radiadas) > 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 Ecología

; marino asociado a arrecife; no migratorio; rango de profundidad 1 - 12 m (Ref. 7247).   Tropical; 30°N - 30°S

Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Point map | Introducciones | 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).

Tamaño / Peso / Age

Maturity: Lm ?  range ? - ? cm
Max length : 14.0 cm TL macho / no sexado; (Ref. 4391); common length : 9.0 cm TL macho / no sexado; (Ref. 5450)

Short description Morfología | Morfometría

Espinas dorsales (total): 12; Radios blandos dorsales (total): 15-17; Espinas anales 2; Radios blandos anales: 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).

Biología     Glosario (por ej. 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 Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva

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).

Main reference Upload your references | Referencias | Coordinador : Allen, Gerald R. | Colaboradores

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 Red List Status (Ref. 123251)


CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Traumatogenic (Ref. 510)





Human uses

Pesquerías: escaso valor comercial; Acuario: Acuarios públicos
FAO(Publication : search) | FishSource |

Más información

Nombres comunes
Sinónimos
Metabolismo
Despredadores
Ecotoxicología
Reproducción
Madurez
Puesta
Agregación para la puesta
Fecundidad
Huevos
Egg development
Age/Size
Crecimiento
Length-weight
Length-length
Length-frequencies
Morfometría
Morfología
Larva
Dinámica larvaria
Reclutamiento
Abundancia
Referencias
Acuicultura
Perfil de acuicultura
Razas
Genética
Frecuencias de alelos
heritabilidad
Enfermedades
Procesamiento
Mass conversion
Colaboradores
Imágenes
Stamps, Coins Misc.
Sonidos
Ciguatera
Velocidad
Tipo de natación
Superficie branquial
Otolitos
Cerebros
Visión

Herramientas

Special reports

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Fuentes de Internet

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).
Nivel trófico (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.
Resiliencia (Ref. 120179):  Alto, población duplicada en un tiempo mínimo inferior a 15 meses (K=0.5-1.1).
Vulnerability (Ref. 59153):  Low vulnerability (13 of 100) .
Price category (Ref. 80766):   Unknown.