Melanorivulus Giarettai
📖 Overview
Occurs at the surface, close to amphibious vegetation at stream bank, with clear to slightly turbid water .
🔬 Taxonomy
🐟 Physical Description
Rivulus giarettai differs from all other species of the subgenus Melanorivulus by possessing a unique color pattern on flank in males, in which red pigmentation is arranged to form a vermiculate pattern. It is similar to species endemic to the central Brazilian plateau in having ventral process of angulo-articular vestigial, first epibranchial curved, and flank intense greenish blue or greenish golden, to purplish blue above anal-fin base in males; it differs from central Brazilian plateau species by a combination of reduction of black pigmentation on head and humeral region in males, 34-36 scales on the longitudinal series, 30-32 caudal-fin rays, 3-4 vomerine teeth, and caudal fin with bars in both sexes.: elongated.
🌀 Behaviour
Behavioural data for Melanorivulus Giarettai is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Freshwater; pelagic; pH range: 5.2 - 5.9. Tropical South America: Araguari river drainage, upper rio Paraná basin in Brazil.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🦠 Common Diseases
The following diseases are known to affect Melanorivulus Giarettai.
🔍 Similar Species
👥 Community & Contribute
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