Smallmouth yellowfish
📖 Overview
Occurs in impoundments and rivers. Prefers clear-flowing waters over sandy or rocky substrates. An omnivorous bottom feeder. Diet includes water fleas, snails, plankton, small mussels, insects, small fish, algae and detritus. Breeds in spring through to midsummer after the first substantial rains of the season. Migrates upstream to spawn over suitable gravel beds .
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 4; Dorsal soft rays (total): 7 - 9; Anal spines: 3; Anal soft rays: 5. : fusiform / normal.
🌀 Behaviour
Behavioural data for Smallmouth yellowfish is currently being reviewed.
🦐 Diet
🥚 Reproduction
Breeds in flowing water therefore must ascend the rivers to spawn in gravel beds. Eggs are laid in a shallow saucer-like nest which is constructed in the gravel by a female (or perhaps male) using the snout and caudal fin. Eggs are covered with gravel after fertilization. A 45 cm female carries 30, 000 eggs.
🌍 Habitat & Distribution
Freshwater; benthopelagic; potamodromous . Subtropical; 24°S - 33°S South Africa.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🎣 Angling Guide
- medium-heavy 7ft spinning rod
- 30-50 lb braid
- fluorocarbon leader
- grass flats
- oyster bars
- marsh drains
- deeper channel edges
Use barbless hooks, minimise air exposure, and revive fish head-first in current before release.
⚠️ Slot limits protect breeding-size fish. Verify daily bag limits.
🍽️ Edibility & Flavour
"Smallmouth yellowfish 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
Per 100g cooked - Source: USDA FoodData Central
| Nutrient | Amount |
|---|---|
| Protein | 18.4 g |
| Omega-3 (total) | 694 mg |
🔬 Mercury Safety
Mercury data for Smallmouth yellowfish 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 | Smallmouth Yellowfish · Vaal-orange Smallmouth Yellowfish |
| 🌍AFR | Kalwerkop · Kleinbekgeelvis · Vaal-oranjerivier Kleinbek-geelvis |
| 🌍CES | parma lesklá |
| 🇷🇺Russian | Малоротый барбус |
Scientific Synonyms
| Scientific Name | Author | Year | Status |
|---|---|---|---|
| Barbus aeneus | Burchell | 1822 | Synonym |
| Barbus gilchristi | Boulenger | 1911 | Synonym |
| Barbus holubi | Steindachner | 1894 | Synonym |
| Barbus mentalis | Gilchrist & Thompson | 1913 | Synonym |
| Cyprinus aeneus | Burchell | 1822 | Synonym |
🦠 Common Diseases
The following diseases are known to affect Smallmouth yellowfish.
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 4 records indexed .
👥 Community & Contribute
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