cá thèo
📖 Overview
cá thèo (Pterocryptis cochinchinensis), first described by Valenciennes, 1840 is a large fish in the family Siluridae (order Siluriformes). Adults typically reach 40.10 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Tropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator. On the IUCN Red List, it is classified as Least Concern.The species is important as a food fish and considered a sustainable seafood option under current management. As a member of the Siluridae, it shares life-history and morphological traits with its relatives in the group.
🔬 Taxonomy
🐟 Physical Description
Dorsal soft rays (total): 4; Anal soft rays: 57 - 73; Vertebrae: 53 - 58. Unusually large genital papilla; males with a long conical papilla, while females with a flat, leaf-shaped papilla with a small projection at the tip. A unique combination of the following characters: head width 11.6-15.4% SL, head depth 8.2-9.9% SL, pelvic fin length 7.5-9.6% SL, length of dorsal fin base 0.8-1.9% SL, depth of caudal peduncle 6.2-7.6% SL, and principal caudal fin rays 14-16 . Dark brown body; dorsal surface purple; stomach light gray; all fins are light gray . Eye circular .: elongated.
🌀 Behaviour
Behavioural data for cá thèo is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Freshwater; demersal. Tropical
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🍽️ Edibility & Flavour
"cá thèo 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 cá thèo is currently being compiled from USDA FoodData Central.
🔬 Mercury Safety
Mercury data for cá thèo 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 |
|---|---|
| 🌍CES | sumec kočinčínský |
| 🌍VIE | cá thèo |
| 🇨🇳Chinese | 西江鲶 · 越南鯰 |
Scientific Synonyms
| Scientific Name | Author | Year | Status |
|---|---|---|---|
| Parasilurus cochinchinensis | Valenciennes | 1840 | Synonym |
| Silurus cochinchiensis | Valenciennes | 1840 | Synonym |
| Silurus cochinchinensis | Valenciennes | 1840 | Synonym |
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 22 records indexed .
👥 Community & Contribute
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