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🌊 Marine Least Concern 🌡️ Deep-water

Pacific viperfish

Chauliodus macouni Bean, 1890
Max Length
29.3 cm
Max Weight
-
Lifespan
8 yrs
Trophic Level
4.5
Depth
25–4390 m
Climate
Deep-water
Resilience
Medium
Vulnerability
32.00/100
Typical Length
-
Depth Zone
deep-water

📖 Overview

Migrate upward at night . Adults feed on small planktonic crustaceans, arrow worms and fish . Photophores occur on belly arranged in a row . Oviparous, with planktonic eggs and larvae . Also caught with bottom trawls.

Scientific Name
Chauliodus macouni
Authority
Bean, 1890
Habitat
Marine
Climate
Deep-water
Body Shape
Elongated
IUCN Status
LC
Max Length
29.3 cm
Lifespan
8 years
Depth Range
25–4390 m
Trophic Level
4.5
Resilience
Medium
Vulnerability
32.00/100
Migration
Oceanodromous
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 5 - 7; Anal spines: 0; Anal soft rays: 9 - 14; Vertebrae: 56 - 62. First dorsal fin ray much produced in a long filament terminating in a minute flap; adipose fin large, placed well back over posterior part of anal, higher posteriorly; pelvic fins long and narrow . No true gill rakers . Dark brown to black in color . Branchiostegal rays: 16-21 .: elongated.

🌀 Behaviour

Behavioural data for Pacific viperfish is currently being reviewed.

🦐 Diet

small fish
crustaceans
cephalopods

🥚 Reproduction

🐣 Oviparous

Oviparous .

🌍 Habitat & Distribution

Marine; bathypelagic; oceanodromous ; depth range 25 - 4390 m . Deep-water; 66°N - 23°N, 127°E - 106°W Northwest Pacific: Navarin Canyon in the Bering Sea to Japan.

🌿 Ecology

Zone Preferences
🌊 Marine 🌑 Deep Water
Migration
Oceanodromous
Trophic Level
4.5±0.4
Food Items

small planktonic crustaceans, arrow worms and fish (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00204 × L3.16 (TL)
Max TL
29.3cm
Dorsal Rays
6
Anal Rays
12
Vertebrae
59

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
32.00/100
Low vulnerability
Trophic Level
4.5
Apex / Top predator
Body Shape
Elongated
Climate Zone
Deep-water
Described By
Bean, 1890

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Fanged viperfish · Pacific viperfish · viper fish
🌍CES zubatka obecná
🇩🇪German Pazifischer Viperfisch
🇫🇮Finnish Idänsapelihammaskala
🇫🇷French chauliode féroce
🇯🇵Japanese Higashi-hôrai-eso · Higashihoraieso · ヒガシホウライエソ
🇵🇹Portuguese Peixe-víbora-do-Pacífico
🇷🇺Russian Тихоокеанский хаулиод · гадюка тихоокеанская морская
🇪🇸Spanish víbora del Pacífico
🇨🇳Chinese 巨口魚 · 馬康氏蝰魚

Scientific Synonyms

Scientific Name Author Year Status
Chauliodus emmelas Jordan & Starks 1904 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 28 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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