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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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Philippines country information

Common names: Palata
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Recorded from Bongo Island and Paril-Sangay Protected Seascape, Moro Gulf (Ref. 106380). Also Ref. 1602.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/rp.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Werner, T.B. and G.R. Allen, 2000
National Database:

Common names from other countries

Classification / Names Nombres comunes | Sinónimos | Catalog of Fishes(Género, Especie) | 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 Ecología

marino asociado a arrecife; no migratorio; rango de profundidad 1 - 12 m (Ref. 9710).   Tropical; 35°N - 25°S

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

Tamaño / Peso / Age

Maturity: Lm ?  range ? - ? cm
Max length : 16.0 cm TL macho / no sexado; (Ref. 9710)

Short description Claves de identificación | Morfología | Morfometría

Espinas dorsales (total) : 13; Radios blandos dorsales (total) : 13 - 15; Espinas anales: 2; Radios blandos anales: 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).

Biología     Glosario (por ej. 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 | Reproducción | Spawnings | Egg(s) | Fecundities | 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., 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 |

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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).
Nivel trófico (Ref. 69278):  2.0   ±0.00 se; based on food items.
Resiliencia (Ref. 120179):  Alto, población duplicada en un tiempo mínimo inferior a 15 meses (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).