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🌊 Marine Least Concern 🌡️ Deep-water

Filament cusk

Homostolus acer Smith & Radcliffe, 1913
Max Length
18.4 cm
Max Weight
-
Lifespan
-
Trophic Level
3.5
Depth
300–1000 m
Climate
Deep-water
Resilience
Medium
Vulnerability
23.00/100
Typical Length
-
Depth Zone
deep-water

📖 Overview

Benthopelagic at bathyal depth . Found on the continental slope . Common species . Oviparous, with oval pelagic eggs floating in a gelatinous mass .

Scientific Name
Homostolus acer
Authority
Smith & Radcliffe, 1913
Habitat
Marine
Climate
Deep-water
Body Shape
Elongated
IUCN Status
LC
Max Length
18.4 cm
Depth Range
300–1000 m
Trophic Level
3.5
Resilience
Medium
Vulnerability
23.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Rather elongate body with pointed head; eye diameter equal to or longer than snout; jaw teeth granular in narrow bands; opercular spine sharp and straight; 1-3 sharp spines on lower margin of preopercle; median basibranchial tooth patch 1; developed rakers on anterior gill arch 27-42; pectoral fins low on the body; each pelvic fin with 1 ray longer than head; precaudal vertebrae 13.: elongated.

🌀 Behaviour

Behavioural data for Filament cusk 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; bathydemersal; depth range 300 - 1000 m . Deep-water

🌿 Ecology

Zone Preferences
🌊 Marine 🌑 Deep Water
Trophic Level
3.5±0.6

📐 Morphometrics

Length–Weight Relationship: W = 0.0038 × L3.14 (TL)
Max TL
18.4cm

🌡️ 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
23.00/100
Low vulnerability
Trophic Level
3.5
Predator
Body Shape
Elongated
Climate Zone
Deep-water
Described By
Smith & Radcliffe, 1913

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Filament Cusk
🌍CES hrujovka ostroploutvý
🇯🇵Japanese Itohikiitachiuo · イトヒキイタチウオ
🇷🇺Russian Японский гомостол
🇨🇳Chinese 長趾鼬魚 · 長趾鼬鳚 · 鼬魚

Scientific Synonyms

Scientific Name Author Year Status
Homostolus japonicus Matsubara 1943 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 1 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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