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🌊 Marine Least Concern 🍽️ Edible 🎣 Game Fish 🌡️ Subtropical

Blue hottentot

Pachymetopon aeneum Gilchrist & Thompson, 1908
Max Length
55 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
20–50 m
Climate
Subtropical
Resilience
Low
Vulnerability
38.00/100
Typical Length
30 cm
Depth Zone
demersal

📖 Overview

Found on rocky substrate. Feeds on benthic organisms like worms, ascidians, crustaceans, mollusks and algae . Rarely caught by shore anglers. Esteemed food fish. Sold fresh in markets.

Scientific Name
Pachymetopon aeneum
Authority
Gilchrist & Thompson, 1908
Habitat
Marine
Climate
Subtropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
55 cm
Depth Range
20–50 m
Trophic Level
3.2
Resilience
Low
Vulnerability
38.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 10 - 11; Dorsal soft rays (total): 11 - 13; Anal spines: 3; Anal soft rays: 10. Head cobalt blue, body blue-streaked bronzy-yellow.: fusiform / normal.

🌀 Behaviour

Behavioural data for Blue hottentot is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

Size at Maturity
25cm TL

Also Ref. 28504.

🌍 Habitat & Distribution

Marine; demersal; depth range 20 - 50 m. Subtropical; 28°S - 34°S South Africa.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.2±0.48
Food Items

benthic organisms like worms, ascidians, crustaceans, mollusks and algae (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.01288 × L3.04 (TL)
Max TL
55cm
Dorsal Spines
11
Dorsal Rays
12
Anal Spines
3
Anal Rays
10

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2009

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
38.00/100
Moderate vulnerability
Trophic Level
3.2
Predator
Body Shape
Fusiform / normal
Climate Zone
Subtropical
Described By
Gilchrist & Thompson, 1908

🎣 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 19.5 g
Omega-3 (total) 322 mg

🔬 Mercury Safety

Mercury data for Blue hottentot 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 (lean white fish average)

Proximate Composition
Energy90 kcal
Moisture80 %
Protein18 %
Total Fat1.2 %
Ash1.2 %
Fatty Acids (g)
Saturated Fat0.3 g
Monounsaturated Fat0.2 g
Polyunsaturated Fat0.4 g
Omega-3 Total0.3 g
EPA0.08 g
DHA0.15 g
Omega-6 Total0.05 g
Key Minerals & Vitamins
Calcium18 mg
Iron0.4 mg
Magnesium30 mg
Phosphorus200 mg
Potassium380 mg
Sodium60 mg
Zinc0.4 mg
Selenium30 µg
Vitamin B60.3 mg
Vitamin B121 µg

📊 Population Dynamics

Year Region Index Notes
- - -

👥 Community & Contribute

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