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Dischistodus melanotus (Bleeker, 1858)

Black-vent damsel
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Dischistodus melanotus   AquaMaps   Data sources: GBIF OBIS
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Papua New Guinea country information

Common names: Yellow demoiselle
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from Kimbe bay (Ref. 28888).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/pp.html
National Fisheries Authority: http://www.spc.org.nc/coastfish/Countries/PNG/png.htm
Occurrences: Occurrences Point map
Main Ref: Kailola, P.J., 1987
National Database:

Common names from other countries

Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

> Ovalentaria/misc (Various families in series Ovalentaria) > Pomacentridae (Damselfishes) > Pomacentrinae
Etymology: Dischistodus: Greek, di = two + Greek, schistos = fissile stone, Plinius + Greek, odous = teeth (Ref. 45335).
  More on author: Bleeker.

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

marina revassocierade; ej vandrande; djupintervall 1 - 12 m (Ref. 9710).   Tropical; 35°N - 25°S

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

Western Pacific: southern Japan and the Ryukyu Islands, Taiwan, Philippines, Palau, Indonesia, Papua New Guinea, Solomon Islands, and the Great Barrier Reef. Reported from Vanuatu (Ref. 13300).

Size / Vikt / Age

Maturity: Lm ?  range ? - ? cm
Max length : 16.0 cm TL hane/ej könsbestämd; (Ref. 9710)

Short description Bestämningsnycklar | Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt) : 13; Mjukstrålar i ryggfenan (totalt) : 13 - 15; Taggstrålar i analfenan: 2; Mjukstrålar i analfenan: 13 - 14. Adults have a large black patch on the abdomen reaching the anus; juveniles an ocellus over the center of the dorsal fin base (Ref. 48636). Body white, anterodorsal (or sometimes entire half of body) dark brown, opercle spots prominent pale large, belly patch dark brown. Body depth 2.0-2.1 in SL (Ref. 90102).

Biologi     Ordlista (t.ex. epibenthic)

Adults occur in lagoon reefs and generally prefers small patch reefs with sand or rubble substrates (Ref. 1602). Feed on benthic algae which it aggressively guards against other herbivores (Ref. 9710). Juveniles secretive in rubble (Ref. 48636). 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). Diurnal species (Ref. 113699).

Life cycle and mating behavior Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver

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 | referenser | Koordinator : Allen, Gerald R. | Medarbetare

Allen, G.R., 1991. Damselfishes of the world. Mergus Publishers, Melle, Germany. 271 p. (Ref. 7247)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 23 September 2021

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FishSource |

Ytterligare information

Trophic ecology
Födoslag
Diet compositions
Food consumptions
Food rations
Predatorer
Ecology
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Population dynamics
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Max. ages / sizes
Length-weight rel.
Length-length rel.
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Estimates based on models

Preferred temperature (Ref. 115969): 25.2 - 29.3, mean 28.6 (based on 1860 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5078   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02818 (0.01498 - 0.05302), b=3.01 (2.84 - 3.18), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trofisk nivå (Ref. 69278):  2.0   ±0.00 se; based on food items.
Resiliens (Ref. 120179):  Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).