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🌊 Marine Least Concern 🌡️ Deep-water

snaggletooth

Astronesthes niger Richardson, 1845
Max Length
16 cm
Max Weight
-
Lifespan
-
Trophic Level
3.8
Depth
-
Climate
Deep-water
Resilience
Medium
Vulnerability
28.00/100
Typical Length
-
Depth Zone
deep-water

📖 Overview

An oceanic and mesopelagic species usually found deeper than 500 m during the day. Feeds on midwater fishes and crustaceans. Most common species taken in surface nets at night .

Scientific Name
Astronesthes niger
Authority
Richardson, 1845
Habitat
Marine
Climate
Deep-water
Body Shape
Elongated
IUCN Status
LC
Max Length
16 cm
Latitude
36°S – 43°N
Trophic Level
3.8
Resilience
Medium
Vulnerability
28.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 14 - 17; Anal spines: 0; Anal soft rays: 12 - 16. Black in color, pale luminous patches on middle of snout and along front of upper jaw . Pale luminous patches develop with growth on shoulder and on lower sides between pectoral and pelvic fins below dorsal . Body moderately elongate and slender, maxillary teeth comblike. Serial photophores are not broken into small groups .: elongated.

🌀 Behaviour

Behavioural data for snaggletooth is currently being reviewed.

🦐 Diet

Diet information for snaggletooth is currently being compiled.

🥚 Reproduction

Reproduction data for snaggletooth is currently being compiled.

🌍 Habitat & Distribution

Marine; bathypelagic; depth range 0 - ? m . Deep-water; 43°N - 36°S west from 5°N to 20°S.

🌿 Ecology

Zone Preferences
🌊 Marine 🌑 Deep Water
Trophic Level
3.8±0.62
Food Items

midwater fishes and crustaceans

📐 Morphometrics

Length–Weight Relationship: W = 0.00417 × L3.05 (TL)
Max TL
16cm
Dorsal Rays
16
Anal Rays
14

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2013

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
28.00/100
Low vulnerability
Trophic Level
3.8
Predator
Body Shape
Elongated
Climate Zone
Deep-water
Latitude Range
43°N – 36°S
Described By
Richardson, 1845

🌐 Names & Taxonomy

Language Common Names
🇬🇧English snaggletooth

Scientific Synonyms

Scientific Name Author Year Status
Astronesthes nigra Richardson 1845 Synonym
Chauliodus fieldii Valenciennes 1846 Synonym
Stomias fieldii Valenciennes 1846 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 50 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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