Pycnochromis iomelas, Half-and-half chromis : fisheries, aquarium

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Pycnochromis iomelas (Jordan & Seale, 1906)

Half-and-half chromis
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Pycnochromis iomelas
Picture by Allen, G.R.

Classification / Names Nombres comunes | Sinónimos | Catalog of Fishes(Género, Especie) | ITIS | CoL | WoRMS | Cloffa

> Ovalentaria/misc (Various families in series Ovalentaria) > Pomacentridae (Damselfishes) > Chrominae
More on authors: Jordan & Seale.

Environment: milieu / climate zone / rango de profundidad / distribution range Ecología

marino asociado a arrecife; no migratorio; rango de profundidad 3 - 35 m (Ref. 7247). Tropical

Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Mapa de puntos | Introducciones | Faunafri

Pacific Ocean: Great Barrier Reef and northern New Guinea to Samoa and the Society Islands (Ref. 7247). There are no valid records of this species in the western Pacific north of New Guinea, and none for the islands of Micronesia (Ref. 92902).

Tamaño / Peso / Age

Madurez: Lm ?  range ? - ? cm
Max length : 8.0 cm FL macho / no sexado; (Ref. 5525)

Short description Claves de identificación | Morfología | Morfometría

Espinas dorsales (total) : 12; Radios blandos dorsales (total) : 13 - 14; Espinas anales: 2; Radios blandos anales: 13 - 14.
Body shape (shape guide): short and / or deep; Cross section: compressed.

Biología     Glosario (por ej. epibenthic)

Adults inhabit passages and outer reef slopes, solitarily or in small groups. They are sometimes seen in mixed aggregations with the closely related species C. margaritifer (Ref. 7247). Feeds on planktons (Ref. 89972). 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. 54980; 113699).

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., 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: 01 August 2021

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Pesquerías: comercial; Acuario: Comercial
FAO - Publication: search | FishSource |

Más información

Ecología Trófica
Food items (preys)
Composición de la dieta
consumo de alimento
Food rations
Despredadores
Ecología
Ecología
Home ranges
Population dynamics
Coeficiente del crecimiento para
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Reclutamiento
Abundancia
Life cycle
Reproducción
Madurez
Maturity/Gills rel.
Fecundidad
Puesta
Spawning aggregations
Huevos
Egg development
Larva
Dinámica larvaria
Distribución
Países
Áreas FAO
Ecosistemas
Ocurrencias, apariciones
Introducciones
BRUVS - Videos
Anatomy
Superficie branquial
Brain
Otolith
Physiology
Body composition
Nutrients
Consumo del oxígeno
Tipo de natación
Velocidad de natación
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Genética
Genome
Genética
Heterozygosity
heritabilidad
Human related
Aquaculture systems
Perfiles de acuicultura
Razas
Ciguatera cases
Stamps, coins, misc.
Outreach
Colaboradores
Taxonomy
Nombres comunes
Sinónimos
Morfología
Morfometría
Imágenes
Referencias
Referencias

Herramientas

E-book | Guía de campo | Asistente para frecuencias de tallas | Herramienta de ciclo de vida | Mapa de puntos | Catch-MSY |

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

Download XML

Summary page | Datos específicos | Nombres comunes | Photos

Fuentes de Internet

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Género, Especie | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Árbol de la vida | Wikipedia: Go, búsqueda | Expediente Zoológico

Estimates based on models

Preferred temperature (Referencia 123201): 25.3 - 27.9, mean 27 °C (based on 86 cells).
Phylogenetic diversity index (Referencia 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02188 (0.01284 - 0.03726), b=3.03 (2.88 - 3.18), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Nivel trófico (Referencia 69278):  2.7   ±0.30 se; based on food items.
Resiliencia (Referencia 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). 🛈
Price category (Ref. 80766):   Unknown.
Nutrients (Ref. 124155):  Calcium = 136 [67, 211] mg/100g; Iron = 0.831 [0.501, 1.397] mg/100g; Protein = 18.1 [16.9, 19.3] %; Omega3 = 0.122 [0.071, 0.203] g/100g; Selenium = 24.5 [13.2, 46.3] μg/100g; VitaminA = 97.8 [26.7, 334.4] μg/100g; Zinc = 1.97 [1.32, 2.88] mg/100g (wet weight);