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🌊 Marine Least Concern 🐠 Aquarium 🌡️ Tropical

Rift pygmygoby

Trimma nubarum Winterbottom, Bogorodsky & Alpermann, 2023
Max Length
2 cm
Max Weight
-
Lifespan
-
Trophic Level
-
Depth
16–29 m
Climate
Tropical
Resilience
High
Vulnerability
10.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

This species was observed hovering in aggregations up to 15 individuals near the roof of caves and moving to shelter in the cave roof when approached by divers .

Scientific Name
Trimma nubarum
Authority
Winterbottom, Bogorodsky & Alpermann, 2023
Habitat
Marine
Climate
Tropical
IUCN Status
LC
Max Length
2 cm
Depth Range
16–29 m
Resilience
High
Vulnerability
10.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 7; Dorsal soft rays (total): 9; Anal spines: 1; Anal soft rays: 8 - 9. This species is distinguished by the following characters: with scales in the predorsal midline; fifth pelvic-fin ray with one dichotomous branch point (total of two branch tips); the middle 1-9 pectoral-fin rays are branched; a bony interorbital of >80% pupil width; caudal fin not forked, with longest ray in the dorsal half of the caudal fin longer than the equivalent ray in the ventral half; upper-cheek papillae in two horizontal lines (a and c); D 9; A 8-9; pectoral fin rays 13; cycloid scales covering the entire predorsal region anterior to a convex line from the upper base of the pectoral fin to just lateral to the base of the sixth first dorsal-fin spine .Cross section: oval.

🌀 Behaviour

Behavioural data for Rift pygmygoby 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; demersal; depth range 16 - 29 m . Tropical endemic Red Sea, Gulf of Aqaba.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic

📐 Morphometrics

Length–Weight Relationship: W = 0.01023 × L3.01 (TL)
Max TL
2cm
Dorsal Spines
7
Dorsal Rays
9
Anal Spines
1
Anal Rays
9

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2024

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Climate Zone
Tropical
Described By
Winterbottom, Bogorodsky & Alpermann, 2023

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