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💧 Freshwater Least Concern 🍽️ Edible 🌡️ Temperate

Australian smelt

Retropinna semoni Weber, 1895
Max Length
10 cm
Max Weight
-
Lifespan
2 yrs
Trophic Level
2.8
Depth
-
Climate
Temperate
Resilience
High
Vulnerability
13.00/100
Typical Length
6 cm
Depth Zone
pelagic

📖 Overview

Lives in streams, backwaters, lakes, swamps and estuaries. Occurs in brackish estuaries and inland salt lakes. Most common in slow-flowing streams and still waters, shoaling near the surface or around the cover of aquatic plants and woody debris. Forms large aggregations in open water . Feeds on aquatic insects, microcrustaceans and algae. Spawns throughout the Murray-Darling river system. Breeds between July and March (mostly in spring) . Spawning temperature is about 15 °C. Newly hatched larvae measure 4.8 mm TL on the average. Eggs are laid among aquatic vegetation and hatch in about 10 days. Sexual maturity is attained by the end of the first year . Eaten fresh or canned.

Scientific Name
Retropinna semoni
Authority
Weber, 1895
Habitat
Freshwater
Climate
Temperate
IUCN Status
LC
Max Length
10 cm
Lifespan
2 years
Trophic Level
2.8
Resilience
High
Vulnerability
13.00/100
Migration
Potamodromous
Water Temp
10–25 °C

🔬 Taxonomy

🐟 Physical Description

Physical description for Australian smelt is currently being compiled.

🌀 Behaviour

Behavioural data for Australian smelt is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

Size at Maturity
7cm TL

🌍 Habitat & Distribution

Freshwater; brackish; pelagic; potamodromous . Temperate; 10°C - 25°C east coast from the Fritzroy River southward to at least the Shoalhaven River; throughout most of the Murray-Darling river system; and in Lake Eyre inland drainage system near Longreach, Thompson River.

🌿 Ecology

Zone Preferences
💧 Freshwater 🌿 Brackish 🐟 Pelagic
Migration
Potamodromous
Trophic Level
2.8±0.29
Food Items

aquatic insects, microcrustaceans and algae

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
10cm

🌡️ Water Parameters & Tolerance

Temperature Range
10–25°C

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
13.00/100
Low vulnerability
Trophic Level
2.8
Omnivore / Planktivore
Climate Zone
Temperate
Described By
Weber, 1895

🍽️ Edibility & Flavour

"Australian smelt is an edible species."

✗ Not for Raw
✓ Fresh Indicators
  • 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
✗ Avoid If
  • Cloudy or sunken eyes
  • Strong fishy or ammonia odour
  • Soft, mushy flesh that doesn't spring back
  • Discoloured or dry flesh
Best Cooking Methods
Baking Grilling Pan-frying

⚡ Nutrition

Detailed nutritional data for Australian smelt is currently being compiled from USDA FoodData Central.

🔬 Mercury Safety

Mercury data for Australian smelt has not yet been assigned. Please consult FDA/EPA guidance for general seafood safety advice.

🌿 Sustainability

Best Choice
Healthy stocks, low impact
Good Alternative
Well-managed, minor concerns
Use Caution
Check sourcing and season
Avoid
Overfished or high impact
✓ Sustainable Choice

🔬 Full Nutritional Profile

Per 100g - Raw, per 100g - Source: USDA FoodData Central templates (generic fish average)

Proximate Composition
Energy125 kcal
Moisture75 %
Protein20 %
Total Fat4 %
Ash1.3 %
Fatty Acids (g)
Saturated Fat1 g
Monounsaturated Fat1.2 g
Polyunsaturated Fat1.5 g
Omega-3 Total1 g
EPA0.3 g
DHA0.5 g
Omega-6 Total0.3 g
Key Minerals & Vitamins
Calcium20 mg
Iron0.7 mg
Magnesium30 mg
Phosphorus220 mg
Potassium380 mg
Sodium55 mg
Zinc0.5 mg
Selenium32 µg
Vitamin B122 µg

📊 Population Dynamics

Year Region Index Notes
- - -

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 2 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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