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🌊 Marine Least Concern 🍽️ Edible 🎣 Game Fish 🌡️ Tropical

Indian threadfish

Scyris indica Rüppell, 1830
Max Length
165 cm
Max Weight
25.0 kg
Lifespan
-
Trophic Level
4.2
Depth
20–100 m
Climate
Tropical
Resilience
Medium
Vulnerability
62.00/100
Typical Length
100 cm
Depth Zone
reef

📖 Overview

Adults found over coral reefs in coastal waters below 60 m . Form schools. Juveniles solitary, found in surface waters and in estuaries; may mimic jellyfish. Feed on fishes, squids, and crustaceans .

Scientific Name
Scyris indica
Authority
Rüppell, 1830
Habitat
Marine
Climate
Tropical
Body Shape
Short and / or deep
IUCN Status
LC
Max Length
165 cm
Max Weight
25 kg
Depth Range
20–100 m
Latitude
31°S – 44°N
Trophic Level
4.2
Resilience
Medium
Vulnerability
62.00/100
Salinity
30–40 ppt

🔬 Taxonomy

Genus
Scyris
Scyris
Species
Indian threadfish
Scyris indica

🐟 Physical Description

Dorsal spines (total): 7; Dorsal soft rays (total): 18 - 20; Anal spines: 3; Anal soft rays: 15 - 20; Vertebrae: 24. : short and / or deep.

🌀 Behaviour

Behavioural data for Indian threadfish is currently being reviewed.

🦐 Diet

small fish
crustaceans
cephalopods

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring-summer
Spawn Location
Pelagic
Fertilization
External

🌍 Habitat & Distribution

Marine; brackish; reef-associated; depth range 20 - 100 m . Tropical; 44°N - 31°S, 31°E - 135°W East Africa to French Polynesia, north to southern Japan, south to the Arafura Sea, and Australia.

🌿 Ecology

Zone Preferences
🌊 Marine 🌿 Brackish 🪸 Reef Associated
Trophic Level
4.2±0.57
🐠 Schooling 🧍 Solitary
Food Items

fishes, squids, and crustaceans (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.02512 × L2.85 (TL)
Max TL
165cm
Max Weight
25,000g
Dorsal Spines
7
Dorsal Rays
19
Anal Spines
3
Anal Rays
18
Vertebrae
24

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2015

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
62.00/100
High vulnerability
Trophic Level
4.2
Apex / Top predator
Body Shape
Short and / or deep
Climate Zone
Tropical
Latitude Range
44°N – 31°S
Described By
Rüppell, 1830

🎣 Angling Guide

Difficulty
Beginner
Fight Rating
strong pulls with head-shakes
Best Seasons
spring,summer,fall
Best Time
incoming tide, dawn and dusk
Line Weight
15-30
Rod Type
medium-heavy spinning
Hook Size
2/0-5/0
Catch & Release
✓ Recommended
Best Months
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Techniques
bottom fishing popping cork soft plastics live bait
Bait & Lures
live shrimp cut mullet soft plastic paddle-tails popping corks
Recommended Tackle
  • medium-heavy 7ft spinning rod
  • 30-50 lb braid
  • fluorocarbon leader
Where to Find Them
  • grass flats
  • oyster bars
  • marsh drains
  • deeper channel edges
Tips & Tricks
Popping cork technique attracts fish from distance. Fish moving tides.
Catch & Release Tips

Use barbless hooks, minimise air exposure, and revive fish head-first in current before release.

Regulations Summary

⚠️ Slot limits protect breeding-size fish. Verify daily bag limits.

🍽️ Edibility & Flavour

⚡ Nutrition

Per 100g cooked - Source: USDA FoodData Central

Nutrient Amount
Protein 19.7 g
Omega-3 (total) 108 mg

🔬 Mercury Safety

Mercury data for Indian threadfish 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

📊 Population Dynamics

Year Region Index Notes
- - -

👥 Community & Contribute

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