Gymnotus Varzea

📖 Overview

Facultative air-breathing in the genus ; Found in root mats of floating meadows in floodplains . Gulps atmospheric air into the hypervascularized posterior chamber of its gas bladder . Feeds on small aquatic invertebrates such as chironomid larvae, insect nymphs and microcrustaceans .

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 0; Anal soft rays: 230 - 310. Distinguished from its congeners endemic to the Amazon and Orinoco Basins and the Guyana Shield in having a color pattern of 16-22 oblique dark pigment bands with wavy and irregular margins in which the majority of bands at midbody form X-shaped patterns (resembling metaphase chromosomes) and in which the dark bands are about twice as broad as the pale interbands. Further differs from its congeners in having the following unique combination of characters: clear (unpigmented) patch at the caudal end of the anal-fin membrane in specimens 6.0-23.7 cm; and bands never divided to form band pairs .

🌀 Behaviour

Behavioural data for Gymnotus Varzea is currently being reviewed.

🦐 Diet

Diet information for Gymnotus Varzea is currently being compiled.

🥚 Reproduction

Reproduction data for Gymnotus Varzea is currently being compiled.

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical South America: Amazon basin in Brazil and Peru.

🌿 Ecology

📐 Morphometrics

🌡️ Water Parameters & Tolerance

🛡️ Conservation Assessment

📊 Population Risk & Fisheries

🐠 Related Species

🔍 Similar Species

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 1 records indexed .

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