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🌊 Marine Least Concern 🌡️ Tropical

Randall's triplefin

Helcogramma randalli Williams & Howe, 2003
Max Length
4.7 cm
Max Weight
-
Lifespan
-
Trophic Level
3.1
Depth
2–12 m
Climate
Tropical
Resilience
High
Vulnerability
10.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Adults are found in rocky boulders of exposed coasts . 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
Helcogramma randalli
Authority
Williams & Howe, 2003
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
4.7 cm
Depth Range
2–12 m
Trophic Level
3.1
Resilience
High
Vulnerability
10.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

A species of Helcogramma (sensu Hansen, 1986) with 14 symphisial mandibular sensory pore, second dorsal fin spines XIV-XV (one of 11 specimens with XIII), third dorsal fin segmented rays 11-12, last ribs on vertebral centrum 12, vertebrae modally 10+28=38 (value range: 10+27 to 29=37 to 39), pored lateral line scales modally 22 or 23 (value range: 22-25), nape scales present, male with thirs dorsal, caudal and anal fins dark and posterior half of body dark.: elongated.

🌀 Behaviour

Behavioural data for Randall's triplefin is currently being reviewed.

🦐 Diet

Diet information for Randall's triplefin is currently being compiled.

🥚 Reproduction

Reproduction data for Randall's triplefin is currently being compiled.

🌍 Habitat & Distribution

Marine; benthopelagic; depth range 2 - 12 m . Tropical

🌿 Ecology

Zone Preferences
🌊 Marine
Trophic Level
3.1±0.3

📐 Morphometrics

Length–Weight Relationship: W = 0.00617 × L3.03 (TL)
Max TL
4.7cm

🌡️ 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
3.1
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Williams & Howe, 2003

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Randall's Triplefin

🗺️ Global Occurrence Map

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

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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