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🌊 Marine Least Concern 🌡️ Tropical

Midget chromis

Pycnochromis acares Randall & Swerdloff, 1973
Max Length
4 cm
Max Weight
-
Lifespan
-
Trophic Level
3
Depth
0–37 m
Climate
Tropical
Resilience
High
Vulnerability
11.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Adults found in exposed seaward reefs. Sometimes inhabit clear lagoons or channels. They occur in small to large aggregations on the upper edge of the slope over live coral or rubble. Uncommon . Benthopelagic . Feeds on planktons . Oviparous, distinct pairing during breeding . Eggs are demersal and adhere to the substrate . Males guard and aerate the eggs . Minimum depth reported taken from Ref. 128797.

Scientific Name
Pycnochromis acares
Authority
Randall & Swerdloff, 1973
Habitat
Marine
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
4 cm
Depth Range
0–37 m
Latitude
26°S – 30°N
Trophic Level
3
Resilience
High
Vulnerability
11.00/100
Migration
Non-migratory
Salinity
30–40 ppt

🔬 Taxonomy

Genus
Pycnochromis
Pycnochromis
Species
Midget chromis
Pycnochromis acares

🐟 Physical Description

Dorsal spines (total): 12 - 13; Dorsal soft rays (total): 11; Anal spines: 2; Anal soft rays: 10 - 11. : fusiform / normal; Cross section: compressed.

🌀 Behaviour

Behavioural data for Midget chromis is currently being reviewed.

🦐 Diet

Diet information for Midget chromis is currently being compiled.

🥚 Reproduction

🐣 Oviparous
Spawn Location
Demersal

Oviparous, distinct pairing during breeding . Eggs are demersal and adhere to the substrate . Males guard and aerate the eggs .

🌍 Habitat & Distribution

Marine; reef-associated; non-migratory; depth range 0 - 37 m . Tropical; 30°N - 26°S, 119°E - 133°W south to Vanuatu and the Austral Islands.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Migration
Non-migratory
Trophic Level
3±0.2
Food Items

planktons (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.0123 × L3.03 (TL)
Max TL
4cm
Dorsal Spines
13
Dorsal Rays
11
Anal Spines
2
Anal Rays
11

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2021

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
11.00/100
Low vulnerability
Trophic Level
3
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Latitude Range
30°N – 26°S
Described By
Randall & Swerdloff, 1973

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