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🌊 Marine Least Concern ⚠️ Venomous ⚡ Venomous 🌡️ Tropical

Barhead spinefoot

Siganus virgatus Valenciennes, 1835
Max Length
30 cm
Max Weight
-
Lifespan
-
Trophic Level
2.7
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
22.00/100
Typical Length
20 cm
Depth Zone
reef

📖 Overview

Inhabits shallow coastal waters, around hard coral reefs and areas of sand with patches of rock and soft coral. Tolerant of murky waters. Larger juveniles and adults occur in pairs in coastal reef flats, slopes and estuaries . Small juveniles are found in mangroves and enter freshwater, moving to reefs usually in small groups among corals . Feed on benthic seaweeds .

Scientific Name
Siganus virgatus
Authority
Valenciennes, 1835
Habitat
Marine
Climate
Tropical
Body Shape
Short and / or deep
IUCN Status
LC
Max Length
30 cm
Latitude
25°S – 35°N
Trophic Level
2.7
Resilience
High
Vulnerability
22.00/100
Water Temp
23–28 °C
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 13; Dorsal soft rays (total): 10; Anal spines: 7; Anal soft rays: 9; Vertebrae: 13. A brown band running diagonally from nape to chin; another from 4th-5th dorsal spine base to pectoral fin base; ocular and shoulder bands spotted with blue; a zone of silvery yellow posterior and adjacent to the shoulder band. Preopercular angle 100°-111°; cheek scalation variable from few to almost fully scaled; midline of thorax fully scaled, sometimes with a row missing from pelvic ridges. A prominent rim or short tube encircle the anterior nostril, with a little peak on it posteriorly. Spines stout, fairly pungent and venomous.: short and / or deep; Cross section: compressed.

🌀 Behaviour

Behavioural data for Barhead spinefoot is currently being reviewed.

🦐 Diet

Diet information for Barhead spinefoot is currently being compiled.

🥚 Reproduction

Reproduction data for Barhead spinefoot is currently being compiled.

🌍 Habitat & Distribution

Marine; brackish; reef-associated; depth range 1 - ? m , usually 1 - 20 m . Tropical; 23°C - 28°C ; 35°N - 25°S, 77°E - 154°E West Pacific: southern India, Sri Lanka, Andaman Islands, Thailand, southern and eastern coasts of China, Taiwan, Ryukyu, Philippines, Malaysia, Singapore, Indonesia and Northern Territory in Australia.

🌿 Ecology

Zone Preferences
🌊 Marine 🌿 Brackish 🪸 Reef Associated
Trophic Level
2.7±0.31
Food Items

benthic seaweeds (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.0195 × L3.11 (TL)
Max TL
30cm
Dorsal Spines
13
Dorsal Rays
10
Anal Spines
7
Anal Rays
9
Vertebrae
13

🌡️ Water Parameters & Tolerance

Temperature Range
23–28°C
Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2017

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
22.00/100
Low vulnerability
Trophic Level
2.7
Omnivore / Planktivore
Body Shape
Short and / or deep
Climate Zone
Tropical
Latitude Range
35°N – 25°S
Described By
Valenciennes, 1835

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Barhead spinefoot · bluelined spinefoot · Doublebarred spinefoot · Virgate rabbitfish
🇫🇷French Sigan ádeux bandes
🇯🇵Japanese Himeaigo · ヒメアイゴ
🇪🇸Spanish Sigano de dos bandas

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 25 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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