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🌊 Marine Endangered 🌡️ Tropical

Oman cownose ray

Rhinoptera jayakari Boulenger, 1895
Max Length
-
Max Weight
-
Lifespan
-
Trophic Level
3.6
Depth
-
Climate
Tropical
Resilience
Low
Vulnerability
60.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Oman cownose ray (Rhinoptera jayakari) is a ray-finned fish of the family Rhinopteridae. It inhabits marine (saltwater) waters. With a trophic level of 3.6, it is a mid-level predator. It is assessed as Endangered on the IUCN Red List.

Scientific Name
Rhinoptera jayakari
Authority
Boulenger, 1895
Habitat
Marine
Climate
Tropical
IUCN Status
EN
Trophic Level
3.6
Resilience
Low
Vulnerability
60.00/100
Salinity
30–40 ppt

🐟 Physical Description

Physical description for Oman cownose ray is currently being compiled.

🌀 Behaviour

Behavioural data for Oman cownose ray is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring-summer
Spawn Location
Pelagic
Fertilization
External

Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures .

🌍 Habitat & Distribution

Marine; benthopelagic. Tropical West Pacific: widespread; from South Africa to the Philippines; north to Ryukyu Is.

🌿 Ecology

Zone Preferences
🌊 Marine
Trophic Level
3.6±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.01148 × L2.98 (TL)

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Endangered
Assessment Date
2020

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
60.00/100
High vulnerability
Trophic Level
3.6
Predator
Climate Zone
Tropical
Described By
Boulenger, 1895

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