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🌊 Marine Least Concern 🌡️ Deep-water

Apristurus Exsanguis

Apristurus exsanguis Sato, Nakaya & Stewart, 1999
Max Length
90.8 cm
Max Weight
-
Lifespan
-
Trophic Level
4.1
Depth
560–1200 m
Climate
Deep-water
Resilience
Very low
Vulnerability
43.00/100
Typical Length
-
Depth Zone
deep-water

📖 Overview

Apristurus Exsanguis (Apristurus exsanguis) is a ray-finned fish of the family Pentanchidae. It inhabits marine (saltwater) waters in deep-water environments. This species can reach a maximum total length of 90.8 cm. It occurs at depths between 560 and 1200 metres. With a trophic level of 4.1, it is a mid-level predator. It is assessed as Least Concern on the IUCN Red List.

Scientific Name
Apristurus exsanguis
Authority
Sato, Nakaya & Stewart, 1999
Habitat
Marine
Climate
Deep-water
Body Shape
Elongated
IUCN Status
LC
Max Length
90.8 cm
Depth Range
560–1200 m
Trophic Level
4.1
Resilience
Very low
Vulnerability
43.00/100
Salinity
30–40 ppt

🐟 Physical Description

Spiral valve turns 12-15; monospondylous vertebrae 40-47; nostril diameter always greater than inter-nostril width; posterior tip of pectoral fin anterior to mid-point of paired fin interspace; the distance between axils of dorsal fins about equal to the anal fin base length; area of the first dorsal fin equal to or slightly less than the area of second; anal fin low with a moderately long base. Pale gray to pale brown in color.: elongated.

🌀 Behaviour

Behavioural data for Apristurus Exsanguis is currently being reviewed.

🦐 Diet

small fish
crustaceans
cephalopods

🥚 Reproduction

🐣 Oviparous
Size at Maturity
67.5cm TL

Oviparous, paired eggs are laid. Embryos feed solely on yolk .

🌍 Habitat & Distribution

Marine; bathydemersal; depth range 560 - 1200 m . Deep-water Southwest Pacific: New Zealand.

🌿 Ecology

Zone Preferences
🌊 Marine 🌑 Deep Water
Trophic Level
4.1±0.7

📐 Morphometrics

Length–Weight Relationship: W = 0.00347 × L3.09 (TL)
Max TL
90.8cm

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2017

📊 Population Risk & Fisheries

Population Resilience
Very low
Minimum doubling time
Fishing Vulnerability
43.00/100
Moderate vulnerability
Trophic Level
4.1
Apex / Top predator
Body Shape
Elongated
Climate Zone
Deep-water
Described By
Sato, Nakaya & Stewart, 1999

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