New 🐟 Mercury Safety Guide & Omega-3 Rankings Updated for 2026. View Omega-3 Rankings →

🌊 Marine Data Deficient 🌡️ Deep-water

Zesticelus Bathybius

Zesticelus bathybius Günther, 1878
Max Length
4.7 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
700–1270 m
Climate
Deep-water
Resilience
High
Vulnerability
23.00/100
Typical Length
-
Depth Zone
deep-water

📖 Overview

Zesticelus Bathybius (Zesticelus bathybius), first described by Günther, 1878 is a tiny fish in the family Cottidae (order Perciformes). Adults typically reach 4.70 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 700 to 1270 metres. It occurs in Deep-water waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus. On the IUCN Red List, it is classified as Data Deficient.

Scientific Name
Zesticelus bathybius
Authority
Günther, 1878
Habitat
Marine
Climate
Deep-water
IUCN Status
DD
Max Length
4.7 cm
Depth Range
700–1270 m
Trophic Level
3.2
Resilience
High
Vulnerability
23.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 5 - 7; Dorsal soft rays (total): 10 - 11; Anal spines: 0; Anal soft rays: 7 - 8.

🌀 Behaviour

Behavioural data for Zesticelus Bathybius 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 700 - 1270 m . Deep-water Northwest Pacific: Japan.

🌿 Ecology

Zone Preferences
🌊 Marine 🌑 Deep Water
Trophic Level
3.2±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00603 × L3.15 (TL)
Max TL
4.7cm
Dorsal Spines
6
Dorsal Rays
11
Anal Rays
8

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2009

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
23.00/100
Low vulnerability
Trophic Level
3.2
Predator
Climate Zone
Deep-water
Described By
Günther, 1878

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet - be the first to log one!

View all observations for Zesticelus Bathybius ↗
Suggest an Edit

Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.

Link to a scientific paper, FishBase, or other authoritative source
Report an Issue

Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.