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🌊 Marine Near Threatened 🌡️ Temperate

White-bellied softnose skate

Rhinoraja longicauda Ishiyama, 1952
Max Length
60 cm
Max Weight
-
Lifespan
-
Trophic Level
3.8
Depth
300–1000 m
Climate
Temperate
Resilience
Low
Vulnerability
55.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Oviparous. Distinct pairing with embrace. Young may tend to follow large objects, such as their mother . Eggs are oblong capsules with stiff pointed horns at the corners deposited in sandy or muddy flats . Egg capsules are 8.5 cm long and 4.3-4.8 cm wide .

Scientific Name
Rhinoraja longicauda
Authority
Ishiyama, 1952
Habitat
Marine
Climate
Temperate
Body Shape
Other
IUCN Status
NT
Max Length
60 cm
Depth Range
300–1000 m
Trophic Level
3.8
Resilience
Low
Vulnerability
55.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Lobate spines absent. Snout broad, obtuse. Juveniles greenish gray with brown hue on dorsal surface, adults chocolate-brown to gray .: other.

🌀 Behaviour

Behavioural data for White-bellied softnose skate is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous

Oviparous, paired eggs are laid. Embryos feed solely on yolk . Distinct pairing with embrace. Young may tend to follow large objects, such as their mother .

🌍 Habitat & Distribution

Marine; bathydemersal; depth range 300 - 1000 m . Temperate Northwest Pacific: off northern Japan and the neighboring Russian coast.

🌿 Ecology

Zone Preferences
🌊 Marine
Trophic Level
3.8±0.7

📐 Morphometrics

Length–Weight Relationship: W = 0.00562 × L3.11 (TL)
Max TL
60cm

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Near Threatened
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
Low
Minimum doubling time
Fishing Vulnerability
55.00/100
Moderate-High vulnerability
Trophic Level
3.8
Predator
Body Shape
Other
Climate Zone
Temperate
Described By
Ishiyama, 1952

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 2 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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View all observations for White-bellied softnose skate ↗
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