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🌊 Marine Least Concern 🌡️ Temperate

Yellow-and-black triplefin

Forsterygion flavonigrum Fricke & Roberts, 1994
Max Length
5 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
4–110 m
Climate
Temperate
Resilience
High
Vulnerability
10.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Facultative air-breathing in the genus ; Adults usually inhabit rocky reefs . They are found on the sides or under overhangs of large boulders, sheltering in the massive sponge growths or in large, deep crevices. They feed mainly on amphipods, and also on barnacle cyprids and polychaete larvae. Males maybe territorial during the breeding season . Eggs are hemispherical and covered with numerous sticky threads that anchor them in the algae on the nesting sites . Larvae are planktonic which occur primarily in shallow, nearshore waters .

Scientific Name
Forsterygion flavonigrum
Authority
Fricke & Roberts, 1994
Habitat
Marine
Climate
Temperate
IUCN Status
LC
Max Length
5 cm
Depth Range
4–110 m
Trophic Level
3.3
Resilience
High
Vulnerability
10.00/100
Salinity
30–40 ppt

🔬 Taxonomy

Kingdom
Animalia
Phylum
Chordata
Class
Teleostei
Teleostei
Order
Blenniiformes
Blenniiformes
Family
Tripterygiidae
Tripterygiidae
Genus
Forsterygion
Forsterygion
Species
Yellow-and-black triplefin
Forsterygion flavonigrum

🐟 Physical Description

Dorsal spines (total): 23 - 27; Dorsal soft rays (total): 12 - 15; Anal spines: 2; Anal soft rays: 25 - 30; Vertebrae: 39 - 46. Short denticles present on inter-radial circuli. Pterygiophore supporting first segmented ray of third dorsal fin anterior to neural spine of 25th vertebra. Dorsal fin formula V-0N-0-1-0- 1. Nine procurrent rays in upper caudal lobe, 8 in lower lobe; in upper lobe 1 ray between upper lobe and posterior epural, 5 rays opposite epurals, 3 rays anterior to anterior epural; in lower lobe, 1 ray between lower lobe and haemal spine of second preural vertebra, 6 rays opposite haemal spine of third preural vertebra, 1 ray anterior to haemal spine of third preural vertebra. Front of body white with black eyes, black stripe extending to below base of second dorsal fin, rear part of body white or yellow; body yellow with black head in breeding males, females and non-breeding males white anteriorly, white or yellow posteriorly, with black stripe along lateral line, only reaching to mid-body .

🌀 Behaviour

Behavioural data for Yellow-and-black triplefin 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; reef-associated; depth range 4 - 110 m , usually 4 - 20 m . Temperate Southwest Pacific: New Zealand.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
3.3±0.44
Food Items

amphipods, and also on barnacle cyprids and polychaete larvae

📐 Morphometrics

Length–Weight Relationship: W = 0.00617 × L3.03 (TL)
Max TL
5cm
Dorsal Spines
25
Dorsal Rays
14
Anal Spines
2
Anal Rays
28
Vertebrae
43

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2010

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.3
Predator
Climate Zone
Temperate
Described By
Fricke & Roberts, 1994

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 1 records indexed .

Occurrence density from GBIF View GBIF records ↗

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