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🌊 Marine Least Concern 🐠 Aquarium 🌡️ Tropical

Dotted butterflyfish

Chaetodon semeion Bleeker, 1855
Max Length
26 cm
Max Weight
-
Lifespan
-
Trophic Level
2.7
Depth
0–50 m
Climate
Tropical
Resilience
High
Vulnerability
25.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Uncommon species found in coral rich areas of clear water lagoon and semi-protected seaward reefs. Usually in pairs or small groups, more wary than most species. Minimum depth reported taken from Ref. 30874. Oviparous . Minimum depth reported taken from Ref. 128797.

Scientific Name
Chaetodon semeion
Authority
Bleeker, 1855
Habitat
Marine
Climate
Tropical
Body Shape
Short and / or deep
IUCN Status
LC
Max Length
26 cm
Depth Range
0–50 m
Latitude
25°S – 30°N
Trophic Level
2.7
Resilience
High
Vulnerability
25.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 13 - 14; Dorsal soft rays (total): 23 - 26; Anal spines: 3; Anal soft rays: 19 - 22. The abdominal region of females is noticeably thick set. Body is golden yellow; base of the posterior portions of the dorsal and anal fins black; a prominent vertical black bar running across the eye; diagonal rows of black dots on the sides. A filament originating from the soft portions of the dorsal fin rays trails posteriorly . Snout length 2.4-2.9 in HL. Body depth 1.6-1.9 in SL .: short and / or deep; Cross section: compressed.

🌀 Behaviour

Behavioural data for Dotted butterflyfish is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring-summer
Spawn Location
Pelagic
Fertilization
External

Distinct pairing .

🌍 Habitat & Distribution

Marine; reef-associated; depth range 0 - 50 m . Tropical; 30°N - 25°S north to Ryukyu Islands, south to the Great Barrier Reef.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
2.7±0.25

📐 Morphometrics

Length–Weight Relationship: W = 0.02291 × L3 (TL)
Max TL
26cm
Dorsal Spines
14
Dorsal Rays
25
Anal Spines
3
Anal Rays
21

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2009

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
25.00/100
Low vulnerability
Trophic Level
2.7
Omnivore / Planktivore
Body Shape
Short and / or deep
Climate Zone
Tropical
Latitude Range
30°N – 25°S
Described By
Bleeker, 1855

👥 Community & Contribute

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