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💧 Freshwater 🌡️ Tropical

Ancistrus Megacanthus

Ancistrus megacanthus Widholzer, Borsoi, Reis & Lehmann A., 2024
Max Length
12.4 cm
Max Weight
-
Lifespan
-
Trophic Level
-
Depth
-
Climate
Tropical
Resilience
Medium
Vulnerability
31.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Facultative or obligate air-breathing ; The species inhabits creeks at elevations near 100 meters, with swift waters lined with rocks and gravel. These water bodies are located within the Pampa biome, in a savanna landscape dominated by herbaceous vegetation. Trees primarily confined to riverbanks with soils composed of clay and gravel .

Scientific Name
Ancistrus megacanthus
Authority
Widholzer, Borsoi, Reis & Lehmann A., 2024
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
Max Length
12.4 cm
Resilience
Medium
Vulnerability
31.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal spines (total): 2; Dorsal soft rays (total): 7; Anal soft rays: 4. This species is distinguished by the following set of characters: well developed snout tentacles, pectoral-fin spine long, and exceeding half length of the pelvic-fin leading ray in males; dorsal and caudal fins plain dark brown to black, without lighter spots or bands; dark brown to black background body color; small white to yellow dots on dorsal surface; four branched rays on the anal fin .: elongated; Cross section: flattened.

🌀 Behaviour

Behavioural data for Ancistrus Megacanthus is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; demersal. Tropical South America: Brazil.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic

📐 Morphometrics

Length–Weight Relationship: W = 0.01479 × L2.98 (TL)
Max TL
12.4cm
Dorsal Spines
2
Dorsal Rays
7
Anal Rays
4

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
31.00/100
Low vulnerability
Body Shape
Elongated
Climate Zone
Tropical
Described By
Widholzer, Borsoi, Reis & Lehmann A., 2024

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