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💧 Freshwater Least Concern 🌡️ Tropical

Jaguar livebearer

Jenynsia onca Lucinda, Reis & Quevedo, 2002
Max Length
8 cm
Max Weight
-
Lifespan
-
Trophic Level
2.9
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
23.00/100
Typical Length
-
Depth Zone
pelagic

📖 Overview

Based on photo submitted, this species grow up to 8.0 cm TL and live for up to 7 years in captivity (P. Petersen, pers.comm. 12/2022).

Scientific Name
Jenynsia onca
Authority
Lucinda, Reis & Quevedo, 2002
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
8 cm
Trophic Level
2.9
Resilience
High
Vulnerability
23.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal soft rays (total): 6 - 9; Anal soft rays: 10; Vertebrae: 30. Having a large dorsal convex expansion at subdistal segments of right half of sixth anal-fin ray of adult males; distinct ovoid to circular dark spots confined to ventral half of flank posterior to pelvic fins; spots gradually more circular towards midventral line; predorsal scales 13-14; series of dashes or spots on body arranged in 6-8 irregular horizontal lines, consistent midlateral pattern absent; no swelling between the urogenital opening and anterior base of anal fin in females; no distinct dark rounded spot on the dorsal pectoral-fin base .: elongated.

🌀 Behaviour

Behavioural data for Jaguar livebearer is currently being reviewed.

🦐 Diet

Diet information for Jaguar livebearer is currently being compiled.

🥚 Reproduction

Reproduction data for Jaguar livebearer is currently being compiled.

🌍 Habitat & Distribution

Freshwater; pelagic. Tropical South America: tributaries of the lower Rio Uruguai in Brazil and Uruguay.

🌿 Ecology

Zone Preferences
💧 Freshwater 🐟 Pelagic
Trophic Level
2.9±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00977 × L3.2 (TL)
Max TL
8cm
Dorsal Rays
8
Anal Rays
10
Vertebrae
30

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2020

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
23.00/100
Low vulnerability
Trophic Level
2.9
Omnivore / Planktivore
Body Shape
Elongated
Climate Zone
Tropical
Described By
Lucinda, Reis & Quevedo, 2002

🗺️ Global Occurrence Map

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

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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