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🌊 Marine Vulnerable 🌡️ Tropical

Brazilian cownose ray

Rhinoptera brasiliensis Müller, 1836
Max Length
-
Max Weight
-
Lifespan
-
Trophic Level
3.6
Depth
0–20 m
Climate
Tropical
Resilience
Low
Vulnerability
62.00/100
Typical Length
90 cm
Depth Zone
demersal

📖 Overview

A benthopelagic species found inshore over sandy bottoms from nearshore to about 20 m depth. Feeds mainly on molluscs . Ovoviviparous . Pups 38-48 cm disc width at birth .

Scientific Name
Rhinoptera brasiliensis
Authority
Müller, 1836
Habitat
Marine
Climate
Tropical
Body Shape
Other
IUCN Status
VU
Depth Range
0–20 m
Latitude
37°S – 30°N
Trophic Level
3.6
Resilience
Low
Vulnerability
62.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Median row of teeth is wider transversely to their lengths. Upper jaw has 9 series of teeth. Brown above, brownish white below. Darker towards the tips of the pectorals .: other.

🌀 Behaviour

Behavioural data for Brazilian cownose ray is currently being reviewed.

🦐 Diet

Diet information for Brazilian cownose ray is currently being compiled.

🥚 Reproduction

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; demersal; depth range 0 - 20 m . Tropical; 30°N - 37°S, 105°W - 33°W

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.6±0.5
Food Items

molluscs (Ref

📐 Morphometrics

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

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Vulnerable
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
62.00/100
High vulnerability
Trophic Level
3.6
Predator
Body Shape
Other
Climate Zone
Tropical
Latitude Range
30°N – 37°S
Described By
Müller, 1836

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 5 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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View all observations for Brazilian cownose ray ↗
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