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💧 Freshwater Critically Endangered 🌡️ Tropical

Hypsolebias Splendissimus

Hypsolebias splendissimus Costa, 2018
Max Length
4.3 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
10.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Found in shallow temporary pool in flat plains, in shadier area densely occupied by aquatic vegetation. Maximum length based on type specimen, to be replaced with a better reference .

Scientific Name
Hypsolebias splendissimus
Authority
Costa, 2018
Habitat
Freshwater
Climate
Tropical
IUCN Status
CR
Max Length
4.3 cm
Trophic Level
3.2
Resilience
High
Vulnerability
10.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

This species is distinguished from its congeners H. fulminantis and H. shibattai by the following characters: in males, pectoral fin red (vs. hyaline), the filamentous rays well-developed on the tips of the dorsal and anal fins in adults (vs. absent or rudimentary, poorly visible), and the second proximal radial of the dorsal fin between the neural spines of the 8th and 9th vertebrae (vs. between neural spines of 6th and 7th vertebrae); differs from H. shibattai by having the dorsal-fin origin posterior to the anal-fin origin in males (vs. anterior), the distinctive red bars restricted to the anterior portion of the flank males (vs. extending over the whole flank), and absence of contact organs on the pectoral fin in males (vs. present) .Cross section: oval.

🌀 Behaviour

Behavioural data for Hypsolebias Splendissimus is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical South America: Brazil.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.2±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.01122 × L3.04 (TL)
Max TL
4.3cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Critically Endangered
Assessment Date
2021

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.2
Predator
Climate Zone
Tropical
Described By
Costa, 2018

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