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🌊 Marine Least Concern 🌡️ Deep-water

Blue Snaggletooth

Astronesthes cyaneus Brauer, 1902
Max Length
10.8 cm
Max Weight
-
Lifespan
-
Trophic Level
3.8
Depth
120–800 m
Climate
Deep-water
Resilience
High
Vulnerability
21.00/100
Typical Length
-
Depth Zone
deep-water

📖 Overview

Blue Snaggletooth (Astronesthes cyaneus) is a ray-finned fish of the family Stomiidae. It inhabits marine (saltwater) waters in deep-water environments. This species can reach a maximum total length of 10.8 cm. It occurs at depths between 120 and 800 metres. With a trophic level of 3.8, it is a mid-level predator. It is assessed as Least Concern on the IUCN Red List.

Scientific Name
Astronesthes cyaneus
Authority
Brauer, 1902
Habitat
Marine
Climate
Deep-water
Body Shape
Elongated
IUCN Status
LC
Max Length
10.8 cm
Depth Range
120–800 m
Latitude
20°S – 36°N
Trophic Level
3.8
Resilience
High
Vulnerability
21.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 17 - 21; Anal spines: 0; Anal soft rays: 13 - 17; Vertebrae: 48 - 49. A large luminous patch on opercular bones. Body uniformly black; its color pink in fresh condition, but whitish when preserved. AC continuous, almost in a straight line. Serial photopores numerous. IV with a prominent bend toward pectoral base. Barbel about as long as head in males, but minute in females.: elongated; Cross section: compressed.

🌀 Behaviour

Behavioural data for Blue Snaggletooth 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; bathypelagic; depth range 120 - 800 m . Deep-water; 36°N - 20°S, 98°W - 154°W West Pacific: northern Madagascar to adjacent waters of the Ogasawara Islands and adjacent waters of the Hawaiian Islands.

🌿 Ecology

Zone Preferences
🌊 Marine 🌑 Deep Water
Trophic Level
3.8±0.6

📐 Morphometrics

Length–Weight Relationship: W = 0.00417 × L3.05 (TL)
Max TL
10.8cm
Dorsal Rays
19
Anal Rays
15
Vertebrae
49

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
21.00/100
Low vulnerability
Trophic Level
3.8
Predator
Body Shape
Elongated
Climate Zone
Deep-water
Latitude Range
36°N – 20°S
Described By
Brauer, 1902

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Blue Snaggletooth
🇯🇵Japanese Nisekurotokagegisu · ニセクロトカゲギス

Scientific Synonyms

Scientific Name Author Year Status
Bathylychnus cyaneus Brauer 1902 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 22 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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