Roughscale flounder
📖 Overview
Inhabits muddy and sandy bottoms of the continental shelf . Feeds mainly on small demersal fishes . Marketed fresh .
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 0; Dorsal soft rays (total): 78 - 82; Anal spines: 0; Anal soft rays: 61 - 65; Vertebrae: 38. Two dark spots along gill opening below pectoral fin. Dark blotch a beginning of straight part of lateral line . Soft ray count of pectoral fin refers to that on ocular side.: short and / or deep.
🌀 Behaviour
Behavioural data for Roughscale flounder is currently being reviewed.
🦐 Diet
🥚 Reproduction
Distinct pairing .
🌍 Habitat & Distribution
Marine; demersal; depth range 30 - 40 m . Tropical Northwest Pacific: southern Japan to the South China Sea.
🌿 Ecology
small demersal fishes (Ref
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🍽️ Edibility & Flavour
"Roughscale flounder is an edible species."
- Clear, bright eyes — cloudy eyes indicate age
- Firm flesh that springs back when pressed
- Fresh ocean smell, never strong or ammonia-like
- Bright red or pink gills, not grey or brown
- Shiny, moist skin with scales tightly attached
- Cloudy or sunken eyes
- Strong fishy or ammonia odour
- Soft, mushy flesh that doesn't spring back
- Discoloured or dry flesh
⚡ Nutrition
Detailed nutritional data for Roughscale flounder is currently being compiled from USDA FoodData Central.
🔬 Mercury Safety
Mercury data for Roughscale flounder has not yet been assigned. Please consult FDA/EPA guidance for general seafood safety advice.
🌿 Sustainability
🔬 Full Nutritional Profile
Per 100g - Raw, per 100g - Source: USDA FoodData Central templates (generic fish average)
📊 Population Dynamics
| Year | Region | Index | Notes |
|---|---|---|---|
| - | - | - |
🌐 Names & Taxonomy
| Language | Common Names |
|---|---|
| 🇬🇧English | Roughscale Flounder |
| 🇯🇵Japanese | Nan-yogarei · Nanyo-garei · ナンヨウガレイ |
| 🇨🇳Chinese | 半邊魚 · 少牙斑鮃 · 扁魚 · 比目魚 · 皇帝魚 |
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 3 records indexed .
👥 Community & Contribute
No observations yet - be the first to log one!
View all observations for Roughscale flounder ↗Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.
Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.