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🌊 Marine Least Concern 🌡️ Subtropical

Poromitra Macrophthalma

Poromitra macrophthalma Gilchrist, 1903
Max Length
4.5 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
0–3124 m
Climate
Subtropical
Resilience
Medium
Vulnerability
37.00/100
Typical Length
-
Depth Zone
deep-water

📖 Overview

Poromitra Macrophthalma (Poromitra macrophthalma), first described by Gilchrist, 1903 is a tiny fish in the family Melamphaidae (order Beryciformes). Adults typically reach 4.50 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 0 to 3124 metres. It occurs in Subtropical waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus. On the IUCN Red List, it is classified as Least Concern.

Scientific Name
Poromitra macrophthalma
Authority
Gilchrist, 1903
Habitat
Marine
Climate
Subtropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
4.5 cm
Depth Range
0–3124 m
Trophic Level
3.2
Resilience
Medium
Vulnerability
37.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 2 - 3; Dorsal soft rays (total): 10 - 11; Anal spines: 1; Anal soft rays: 8 - 9; Vertebrae: 28 - 30. The species is distinguished by the following characters: lower margin of praeoperculum spinulated, posterior margin of the praeoperculum usually unspinulated or in a small number of fish there can be one spinule on it; insertion of ventral fins in front of the vertical of the posterior margin of the pectoral fin insertion; upper jaw not reaching the vertical of the posterior margin of the eye; D II-III,10-11; A I,8-9; first branchial arch 21-24 rakers; vertebrae 28-30; pyloric caeca 4-5 .: fusiform / normal.

🌀 Behaviour

Behavioural data for Poromitra Macrophthalma is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring-summer
Spawn Location
Pelagic
Fertilization
External

🌍 Habitat & Distribution

Marine; bathypelagic; depth range 0 - 3124 m . Subtropical Indian Ocean and the Pacific.

🌿 Ecology

Zone Preferences
🌊 Marine 🌑 Deep Water
Trophic Level
3.2±0.3

📐 Morphometrics

Length–Weight Relationship: W = 0.01096 × L3.1 (TL)
Max TL
4.5cm
Dorsal Spines
3
Dorsal Rays
11
Anal Spines
1
Anal Rays
9
Vertebrae
29

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
37.00/100
Moderate vulnerability
Trophic Level
3.2
Predator
Body Shape
Fusiform / normal
Climate Zone
Subtropical
Described By
Gilchrist, 1903

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