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💧 Freshwater Least Concern 🌡️ Temperate

Wrinklehead Sculpin

Cottus nozawae Snyder, 1911
Max Length
17.3 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
-
Climate
Temperate
Resilience
Medium
Vulnerability
37.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Inhabits middle and upper reaches of rivers. MtDNA studies revealed three distinct phylogenetic groups (Hokkaido Island, Northern Tohoku District and Yamagata Prefecture) of the species. This also provides the basic information for the conservation of the species populations in the Tohoku District which have been designated as endangered local populations .

Scientific Name
Cottus nozawae
Authority
Snyder, 1911
Habitat
Freshwater
Climate
Temperate
IUCN Status
LC
Max Length
17.3 cm
Trophic Level
3.4
Resilience
Medium
Vulnerability
37.00/100
Migration
Amphidromous
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Physical description for Wrinklehead Sculpin is currently being compiled.

🌀 Behaviour

Behavioural data for Wrinklehead Sculpin is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; demersal; amphidromous . Temperate

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Migration
Amphidromous
Trophic Level
3.4±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.00813 × L3.21 (TL)
Max TL
17.3cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2020

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
37.00/100
Moderate vulnerability
Trophic Level
3.4
Predator
Climate Zone
Temperate
Described By
Snyder, 1911

🌐 Names & Taxonomy

Language Common Names
🇬🇧English River Sculpin · Wrinklehead Sculpin
🌍CES vranka saporská
🇯🇵Japanese Hana-kajika · Hanakajika · ハナカジカ
🇷🇺Russian Подкаменщик Нозавы

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 25 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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