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💧 Freshwater Near Threatened 🌡️ Tropical

Hisonotus Megaloplax

Hisonotus megaloplax Carvalho & Reis, 2009
Max Length
4.7 cm
Max Weight
-
Lifespan
-
Trophic Level
-
Depth
-
Climate
Tropical
Resilience
-
Vulnerability
14.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Hisonotus Megaloplax (Hisonotus megaloplax) is a ray-finned fish of the family Loricariidae. It inhabits freshwater waters. This species can reach a maximum total length of 4.7 cm. It is assessed as Near Threatened on the IUCN Red List.

Scientific Name
Hisonotus megaloplax
Authority
Carvalho & Reis, 2009
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
IUCN Status
NT
Max Length
4.7 cm
Vulnerability
14.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal spines (total): 2; Dorsal soft rays (total): 7; Anal spines: 1; Anal soft rays: 5. Hisonotus megaloplax differs from its congeners by the arrangement of abdominal plates, which is composed by greatly enlarged lateral abdominal plates, which contact each other at the belly midline, without a median abdominal series or with a single triangular plate located posteriorly. All other species of Hisonotus, with the exception of Hisonotus montanus, possess a complete median series between the lateral abdominal plates or a naked area between them. This feature is polymorphic in H. montanus, some individuals having enlarged lateral abdominal plates contacting at the midline and leading to misidentification. Hisonotus megaloplax is further distinguished from Hisonotus montanus by the caudal-fin color pattern which is almost completely dark vs. color pattern composed by vertical dark stripes, and by the infraorbital canal entering infraorbital series via sphenotic vs. infraorbital canal entering infraorbital series via compound pterotic .: elongated.

🌀 Behaviour

Behavioural data for Hisonotus Megaloplax is currently being reviewed.

🦐 Diet

Diet information for Hisonotus Megaloplax is currently being compiled.

🥚 Reproduction

Reproduction data for Hisonotus Megaloplax is currently being compiled.

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical; 28°S - 29°S South America: Brazil.

🌿 Ecology

Zone Preferences
💧 Freshwater

📐 Morphometrics

Length–Weight Relationship: W = 0.00977 × L3.06 (TL)
Max TL
4.7cm
Dorsal Spines
2
Dorsal Rays
7
Anal Spines
1
Anal Rays
5

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Near Threatened
Assessment Date
2018

📊 Population Risk & Fisheries

Fishing Vulnerability
14.00/100
Low vulnerability
Body Shape
Elongated
Climate Zone
Tropical
Described By
Carvalho & Reis, 2009

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