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🌊 Marine Data Deficient 🌡️ Tropical

Microbrotula Geraldalleni

Microbrotula geraldalleni Schwarzhans & Nielsen, 2012
Max Length
4.1 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
10.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Microbrotula Geraldalleni (Microbrotula geraldalleni), first described by Schwarzhans & Nielsen, 2012 is a tiny fish. Adults typically reach 4.10 cm in maximum length. It inhabits marine coastal and open-ocean environments. 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
Microbrotula geraldalleni
Authority
Schwarzhans & Nielsen, 2012
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
IUCN Status
DD
Max Length
4.1 cm
Trophic Level
3.2
Resilience
High
Vulnerability
10.00/100
Salinity
30–40 ppt

🔬 Taxonomy

Genus
Microbrotula
Microbrotula
Species
Microbrotula Geraldalleni
Microbrotula geraldalleni

🐟 Physical Description

Dorsal soft rays (total): 68 - 73; Anal soft rays: 61 - 65; Vertebrae: 48 - 50. This species is distinguished by the following characters: vertebrae 11 + 37-39 = 48-50; D 68-73; A 61-65; pectoral-fin rays 14; caudal-fin rays 6; D/V 9-11; D/A 13-15; V/A 14-16; head with continuous squamation across cheek, opercle and occiput except for triangular window above opercle; anterior half of head with abundant papillae; forward-curved spine at lower angle of preopercle, hidden by skin; 3 posterior mandibular pores, 2-3 lower preopercular pores; absence of palatine teeth; moderately elongate otolith, length to height 2.0-2.1 and otolith length to colliculum length 2.6-3.0 .: elongated; Cross section: compressed.

🌀 Behaviour

Behavioural data for Microbrotula Geraldalleni 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. Tropical endemic to Cenderawasih Bay, Irian Jaya, New Guinea, Indonesia.

🌿 Ecology

Zone Preferences
🌊 Marine
Trophic Level
3.2±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.00468 × L3.03 (TL)
Max TL
4.1cm
Dorsal Rays
71
Anal Rays
63
Vertebrae
49

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.2
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Schwarzhans & Nielsen, 2012

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