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

🌊 Marine Data Deficient 🌡️ Temperate

スルガホウネンエソ

Polyipnus surugaensis Aizawa, 1990
Max Length
3.7 cm
Max Weight
-
Lifespan
-
Trophic Level
3.1
Depth
-
Climate
Temperate
Resilience
High
Vulnerability
12.00/100
Typical Length
-
Depth Zone
pelagic

📖 Overview

スルガホウネンエソ (Polyipnus surugaensis) is a ray-finned fish of the family Sternoptychidae. It inhabits marine (saltwater) waters in pelagic environments. This species can reach a maximum total length of 3.7 cm. With a trophic level of 3.1, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Data Deficient on the IUCN Red List.

Scientific Name
Polyipnus surugaensis
Authority
Aizawa, 1990
Habitat
Marine
Climate
Temperate
Body Shape
Short and / or deep
IUCN Status
DD
Max Length
3.7 cm
Trophic Level
3.1
Resilience
High
Vulnerability
12.00/100
Salinity
30–40 ppt

🔬 Taxonomy

Kingdom
Animalia
Phylum
Chordata
Class
Teleostei
Teleostei
Order
Stomiiformes
Stomiiformes
Family
Sternoptychidae
Sternoptychidae
Genus
Polyipnus
Polyipnus
Species
スルガホウネンエソ
Polyipnus surugaensis

🐟 Physical Description

Dorsal soft rays (total): 12; Anal soft rays: 17; Vertebrae: 32. First and second supra-abdominal photophores at the same level, with the third elevated. Darkly pigmented area of predorsal do not reach the median line of the body and is separated from the subdorsal dark area; the anterior part of the darkly pigmented predorsal is concave ventrally. Vomerine teeth present only on lateral edge .: short and / or deep.

🌀 Behaviour

Behavioural data for スルガホウネンエソ 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; pelagic-oceanic. Temperate Northwest Pacific: known only from Suruga Bay, Japan.

🌿 Ecology

Zone Preferences
🌊 Marine 🐟 Pelagic
Trophic Level
3.1±0.3

📐 Morphometrics

Length–Weight Relationship: W = 0.02291 × L2.94 (TL)
Max TL
3.7cm
Dorsal Rays
12
Anal Rays
17
Vertebrae
32

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
12.00/100
Low vulnerability
Trophic Level
3.1
Predator
Body Shape
Short and / or deep
Climate Zone
Temperate
Described By
Aizawa, 1990

🌐 Names & Taxonomy

Language Common Names
🌍CES stříbrnáč suruganský
🇯🇵Japanese Surugahonen-eso · スルガホウネンエソ

🗺️ Global Occurrence Map

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

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet - be the first to log one!

View all observations for スルガホウネンエソ ↗
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.