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Diadromous Least Concern 🍽️ Edible 🌡️ Tropical

Olive flathead-gudgeon

Butis amboinensis Bleeker, 1853
Max Length
14 cm
Max Weight
-
Lifespan
-
Trophic Level
4.2
Depth
0–5 m
Climate
Tropical
Resilience
High
Vulnerability
11.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

This species is reported to occur in many coastal streams in brackish to freshwaters and estuaries over substrates of mud, sandy mud or leaf litter and is often observed clinging upside down under dead wood, eyes facing downwards. An ambush hunter, feeding mainly on small fish and crustaceans (shrimps (Atyidae), prawns (Palaemonidae)) . .Usually found in brackish mangrove areas and in creeks and rivers, sometimes well upstream , 48637).

Scientific Name
Butis amboinensis
Authority
Bleeker, 1853
Habitat
Diadromous
Climate
Tropical
IUCN Status
LC
Max Length
14 cm
Depth Range
0–5 m
Trophic Level
4.2
Resilience
High
Vulnerability
11.00/100
Migration
Amphidromous
Water Temp
22–28 °C
Salinity
30–40 ppt

🔬 Taxonomy

Kingdom
Animalia
Phylum
Chordata
Class
Teleostei
Teleostei
Order
Gobiiformes
Gobiiformes
Family
Eleotridae
Eleotridae
Genus
Butis
Butis
Species
Olive flathead-gudgeon
Butis amboinensis

🐟 Physical Description

Dorsal spines (total): 7; Dorsal soft rays (total): 8; Anal spines: 1; Anal soft rays: 8 - 9; Vertebrae: 25. This species is distinguished by the followingcharacters: no scales between eyes and orbital ridges, IOS 0/1-3/0; jaws reaching back to below front part of eye; absence of auxiliary scales on body; body depth at anal fin origin 13-17% SL .Cross section: oval.

🌀 Behaviour

Behavioural data for Olive flathead-gudgeon is currently being reviewed.

🦐 Diet

small fish
crustaceans
cephalopods

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Marine; freshwater; brackish; demersal; amphidromous ; depth range 0 - 5 m . Tropical; 22°C - 28°C West Pacific: Philippines and Indonesia (also Sunda Is.

🌿 Ecology

Zone Preferences
🌊 Marine 💧 Freshwater 🌿 Brackish ⬇️ Benthic
Migration
Amphidromous
Trophic Level
4.2±0.7

📐 Morphometrics

Length–Weight Relationship: W = 0.00589 × L3.04 (TL)
Max TL
14cm
Dorsal Spines
7
Dorsal Rays
8
Anal Spines
1
Anal Rays
9
Vertebrae
25

🌡️ Water Parameters & Tolerance

Temperature Range
22–28°C
Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2018

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
11.00/100
Low vulnerability
Trophic Level
4.2
Apex / Top predator
Climate Zone
Tropical
Described By
Bleeker, 1853

🍽️ Edibility & Flavour

"Olive flathead-gudgeon 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 Olive flathead-gudgeon is currently being compiled from USDA FoodData Central.

🔬 Mercury Safety

Mercury data for Olive flathead-gudgeon 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
- - -

👥 Community & Contribute

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