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💧 Freshwater Least Concern 🍽️ Edible ⚠️ Venomous ⚡ Traumatogenic 🌡️ Tropical

Long tom

Strongylura krefftii Günther, 1866
Max Length
85 cm
Max Weight
Lifespan
Trophic Level
3.6
Depth
Climate
Tropical
Resilience
Medium
Vulnerability
45.00/100
Typical Length
Depth Zone
pelagic

📖 Overview

Inhabits still or flowing rivers, from tidal reaches to far inland. Also found in some impoundments (Lake Argyle,WA). Often shelters among overhanging vegetation or submerged roots. Adults are infrequently found in coastal marine waters . Occurs in larger streams. Surface-dwelling predator of small fishes, insects and crustaceans . Oviparous . Spawning is believed to occur sometimes between September and December. The presence of juveniles well inland and in impoundments suggests that it may spawn in freshwater . Eggs may be found attached to objects in the water by tendrils on the egg's surface .

Scientific Name
Strongylura krefftii
Authority
Günther, 1866
Habitat
Freshwater
Climate
Tropical
IUCN Status
LC
Max Length
85 cm
Trophic Level
3.6
Resilience
Medium
Vulnerability
45.00/100

🔬 Taxonomy

🐟 Physical Description

Dorsal soft rays (total): 16 - 18; Anal soft rays: 19 - 20.

🌀 Behaviour

Behavioural data for Long tom is currently being reviewed.

🦐 Diet

Diet information for Long tom is currently being compiled.

🥚 Reproduction

🐣 Oviparous

Oviparous . Breeding occurs in shallow seas, estuaries, freshwater rivers, lakes or ponds .

🌍 Habitat & Distribution

Freshwater; brackish; pelagic; depth range 0 - ? m. Tropical; 4°S - 24°S

🌿 Ecology

Zone Preferences
💧 Freshwater 🌿 Brackish 🐟 Pelagic
Trophic Level
3.6±0.55

📐 Morphometrics

Length–Weight Relationship: W = 0.00132 × L3.09 (TL)
Max TL
85cm
Dorsal Rays
17
Anal Rays
20

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
45.00/100
Moderate vulnerability
Trophic Level
3.6
Predator
Climate Zone
Tropical
Described By
Günther, 1866

🍽️ Edibility & Flavour

"Long tom 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 Long tom is currently being compiled from USDA FoodData Central.

🔬 Mercury Safety

Mercury data for Long tom 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

🌐 Names & Taxonomy

Language Common Names
🇬🇧English freshwater longtom · long tom

Scientific Synonyms

Scientific Name Author Year Status
Belone krefftii Günther 1866 Synonym
Stenocaulus krefftii Günther 1866 Synonym
Stenocaulus perornatus Whitley 1938 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) — 19 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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