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🌊 Marine Data Deficient 🌡️ Tropical

Majungaichthys Agalegae

Majungaichthys agalegae Schwarzhans & Møller, 2011
Max Length
4 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
4–5 m
Climate
Tropical
Resilience
-
Vulnerability
10.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Majungaichthys Agalegae (Majungaichthys agalegae), first described by Schwarzhans & Møller, 2011 is a tiny fish. Adults typically reach 4.00 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 4 to 5 metres. It occurs in Tropical waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus. On the IUCN Red List, it is classified as Data Deficient.

Scientific Name
Majungaichthys agalegae
Authority
Schwarzhans & Møller, 2011
Habitat
Marine
Climate
Tropical
IUCN Status
DD
Max Length
4 cm
Depth Range
4–5 m
Trophic Level
3.2
Vulnerability
10.00/100
Salinity
30–40 ppt

🔬 Taxonomy

Genus
Majungaichthys
Majungaichthys
Species
Majungaichthys Agalegae
Majungaichthys agalegae

🐟 Physical Description

Dorsal soft rays (total): 71 - 75; Anal soft rays: 55 - 62; Vertebrae: 42 - 44. This species is distinguished by the following characters: vertebrae 12 + 30-32 = 42-44, pleural ribs on vertebrae 2-11; rays on dorsal fin 71-75 and anal fin 55-62, D/A 20-21; distance from base of ventral fin to base of anal fin 25.5-28; head with rounded snout, scale patch on cheeks with 4 or 5 rows on upper cheek and 2 or 3 rows on lower cheek; p2 pairs of pseudoclaspers almost equally large, outer flap-shaped with broadened tip, inner narrower with anteriorly inclined tip; otolith with indistinctly divided sulcus with extremely small cauda, ostium length to cauda length about 7:1, sulcus slightly inclined, otolith length to otolith height 2.1, otolith length to sulcus length 1.8-1.9 .

🌀 Behaviour

Behavioural data for Majungaichthys Agalegae 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; benthopelagic; depth range 4 - 5 m . Tropical Indian Ocean: off northwestern Madagascar (Nosy Mitsio Archipelago) to the Agalega Islands (Mauritius).

🌿 Ecology

Zone Preferences
🌊 Marine
Trophic Level
3.2±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.00468 × L3.03 (TL)
Max TL
4cm
Dorsal Rays
73
Anal Rays
59
Vertebrae
43

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2019

📊 Population Risk & Fisheries

Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.2
Predator
Climate Zone
Tropical
Described By
Schwarzhans & Møller, 2011

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