Acanthochromis polyacanthus, Spiny chromis

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Acanthochromis polyacanthus (Bleeker, 1855)

Spiny chromis
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Acanthochromis polyacanthus   AquaMaps   Data sources: GBIF OBIS
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Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

> Ovalentaria/misc (Various families in series Ovalentaria) > Pomacentridae (Damselfishes) > Pomacentrinae
Etymology: Acanthochromis: Greek, akantha = thorn + Greek, chromis = a marine fish without identification, dealing with perch; cited by Plinius (Ref. 45335).
More on author: Bleeker.

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

marina revassocierade; ej vandrande; djupintervall 1 - 65 m (Ref. 9710), usually 4 - 20 m (Ref. 90102). Tropical; 15°N - 26°S, 116°E - 169°E (Ref. 56301)

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Prickkarta | Utplanteringar | Faunafri

Western Pacific: Indonesia and the Philippines to northeastern Australia and Melanesia.

Size / Vikt / Age

Könsmognad: Lm ?  range ? - ? cm
Max length : 16.0 cm TL hane/ej könsbestämd; (Ref. 129178)

Short description Bestämningsnycklar | Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt) : 17; Mjukstrålar i ryggfenan (totalt) : 14 - 16; Taggstrålar i analfenan: 2; Mjukstrålar i analfenan: 14 - 16.
Body shape (shape guide): short and / or deep; Cross section: compressed.

Biologi     Ordlista (t.ex. epibenthic)

Adults inhabit inshore and offshore coral reefs (Ref. 9710). Also found in harbors, lagoons and outer reef slopes. The only pomacentrid species that lacks a pelagic larval stage. One of the very few marine fishes where fry are guarded by the parents (Ref. 9710, 48636). School as they grow and sub-adults are usually seen in small groups. Adults form pairs and are territorial when breeding (Ref. 48636). Monogamous (Ref. 52884). Oviparous (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Males guard and aerate the eggs (Ref. 205).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Oviparous, distinct pairing during breeding (Ref. 205). Monogamous mating is observed as both obligate and genetic (Ref. 52884). Eggs are demersal and adhere to the substrate (Ref. 205). Males guard and aerate the eggs (Ref. 205). Does not have a juvenile bisexual phase and all males have the typical testicular morphology of gonochores (Ref. 103751).

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: Version 2025-1)

  Least Concern (LC) ; Date assessed: 15 November 2010

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

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Ytterligare information

Trophic ecology
Food items (preys)
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Estimates based on models

Preferred temperature (Ref. 123201): 25.1 - 28.9, mean 27.8 °C (based on 458 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.03236 (0.01926 - 0.05438), b=3.05 (2.90 - 3.20), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trofisk nivå (Ref. 69278):  2.7   ±0.30 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 (13 of 100). 🛈
Nutrients (Ref. 124155):  Calcium = 112 [57, 167] mg/100g; Iron = 0.861 [0.520, 1.422] mg/100g; Protein = 18.3 [17.1, 19.4] %; Omega3 = 0.121 [0.074, 0.195] g/100g; Selenium = 36.9 [20.2, 68.6] μg/100g; VitaminA = 50.9 [13.7, 180.6] μg/100g; Zinc = 1.67 [1.14, 2.38] mg/100g (wet weight);