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💧 Freshwater Least Concern 🎣 Game Fish 🐠 Aquarium 🌡️ Tropical 🎣 Game Fish

Blackspotted squeaker

Synodontis nigromaculatus Boulenger, 1905
Max Length
38.5 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
21.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Prefers rocks or marginal vegetation of flowing riverine channels to lagoons or backwaters . It feeds on a variety of food including detritus, algae and plant material, insects, snails and small fish, and scavenges readily . Eggs and larvae of cichlids have been reported in stomach of this species . Oviparous . Breeds during the summer rainy season , with a peak coinciding with heavy rains in January to March . Juveniles move off the floodplains when water recedes . Grows to a large size .

Scientific Name
Synodontis nigromaculatus
Authority
Boulenger, 1905
Habitat
Freshwater
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
38.5 cm
Trophic Level
3.4
Resilience
High
Vulnerability
21.00/100
Water Temp
22–26 °C
Salinity
0–0.5 ppt

🔬 Taxonomy

Kingdom
Animalia
Phylum
Chordata
Class
Teleostei
Teleostei
Order
Siluriformes
Siluriformes
Family
Mochokidae
Mochokidae
Genus
Synodontis
Synodontis
Species
Blackspotted squeaker
Synodontis nigromaculatus

🐟 Physical Description

Dorsal spines (total): 1; Dorsal soft rays (total): 7; Anal spines: 0; Anal soft rays: 11 - 15. : fusiform / normal.

🌀 Behaviour

Behavioural data for Blackspotted squeaker is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous

Oviparous . Distinct pairing during breeding .

🌍 Habitat & Distribution

Freshwater; benthopelagic; pH range: 6.0 - 7.5; dH range: ? - 20. Tropical; 22°C - 26°C ; 11°S - 21°S

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.4±0.3
Food Items

a variety of food including detritus, algae and plant material, insects, snails and small fish, and

📐 Morphometrics

Length–Weight Relationship: W = 0.01413 × L2.89 (TL)
Max TL
38.5cm
Dorsal Spines
1
Dorsal Rays
7
Anal Rays
13

🌡️ Water Parameters & Tolerance

Temperature Range
22–26°C
pH Range
6–7.5
Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2025

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
21.00/100
Low vulnerability
Trophic Level
3.4
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Boulenger, 1905

🎣 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.

📊 Population Dynamics

Year Region Index Notes
- - -

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Blackspotted Squeaker · Spotted squeaker
🌍AFR Spikkel-skreeubaber
🇩🇰Danish Sortplettet Rygsvømmermalle
🇩🇪German Schwarzgefleckter Fiederbartwels
🇫🇮Finnish Pantteriripsimonni
🌍SWA Bongo

Scientific Synonyms

Scientific Name Author Year Status
Synodontis colyeri Boulenger 1923 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 56 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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View all observations for Blackspotted squeaker ↗
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