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💧 Freshwater Data Deficient 🌡️ Tropical

Dicrossus Foirni

Dicrossus foirni Römer, Hahn & Vergara, 2010
Max Length
7.1 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
-
Climate
Tropical
Resilience
-
Vulnerability
11.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Inhabits all types of water. Juveniles occur exclusively in very soft and acid, clear and black water while sub-adults occur in whitewater brooks .

Scientific Name
Dicrossus foirni
Authority
Römer, Hahn & Vergara, 2010
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
IUCN Status
DD
Max Length
7.1 cm
Trophic Level
3.2
Vulnerability
11.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal spines (total): 15 - 16; Dorsal soft rays (total): 6 - 7; Anal spines: 3; Anal soft rays: 6 - 7. Can be distinguished readily by having three rows of round to vertical-ovoid, alternating dark grey to blackish, double or triple spots on the sides of the body; adult males with a black spot on the dorsum and basal part of the dorsal fin at the position of hard rays 7 to 8, and a pointed rhombic caudal fin. Exhibits pronounced sexual size and color dimorphism .: elongated.

🌀 Behaviour

Behavioural data for Dicrossus Foirni is currently being reviewed.

🦐 Diet

Diet information for Dicrossus Foirni is currently being compiled.

🥚 Reproduction

Reproduction data for Dicrossus Foirni is currently being compiled.

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical South America: Rio Negro, Amazon drainage in Brazil.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.2±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.00724 × L3.13 (TL)
Max TL
7.1cm
Dorsal Spines
16
Dorsal Rays
7
Anal Spines
3
Anal Rays
7

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2018

📊 Population Risk & Fisheries

Fishing Vulnerability
11.00/100
Low vulnerability
Trophic Level
3.2
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Römer, Hahn & Vergara, 2010

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