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🌊 Marine Least Concern 🌡️ Tropical

Sulu Gollumshark

Gollum suluensis Last & Gaudiano, 2011
Max Length
58.5 cm
Max Weight
-
Lifespan
-
Trophic Level
4
Depth
-
Climate
Tropical
Resilience
-
Vulnerability
47.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Sulu Gollumshark (Gollum suluensis), first described by Last & Gaudiano, 2011 is a large fish in the family Pseudotriakidae (order Carcharhiniformes). Adults typically reach 58.50 cm in maximum length. It inhabits marine coastal and open-ocean environments. It occurs in Tropical waters. Diet is predominantly piscivorous, targeting other fish and larger prey. On the IUCN Red List, it is classified as Least Concern.

Scientific Name
Gollum suluensis
Authority
Last & Gaudiano, 2011
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
58.5 cm
Trophic Level
4
Vulnerability
47.00/100
Salinity
30–40 ppt

🐟 Physical Description

A small species of Gollum with the following combination of characters: body soft; head bell-shaped with a broadly parabolic snout; direct preorbital snout length 2.1–2.4 times eye length; preoral length 0.8–1.0 of mouth width, 1.3 times prenarial length; eye 1.4–1.5 times nostril length, more than 4.8 times spiracle length; head relatively broad, 12–14% TL; direct preorbital snout length 1.2–1.4 times interorbital space; head length 2.3–2.6 times mouth width, 8.0–9.0 times nostril width, 3.0–3.5 times preventral caudal-fin margin; length of pectoral-fin anterior margin 2.2–2.5 times its base; first dorsal-fin inner margin 0.5–0.6 of pectoral-fin base; second dorsal-fin base 10–12% TL; ventral head dusky, not strongly contrasted with dorsal surface along its lateral margin; posterior edges of dorsal fins not excessively concave; tips of dorsal fins dark; ventral margin of caudal fin dusky, not strongly contrasted with rest of fin; mouth dark; monospondylous centra 44–45, diplospondylous centra 107–109, total centra 151–154 .: elongated.

🌀 Behaviour

Behavioural data for Sulu Gollumshark is currently being reviewed.

🦐 Diet

small fish
crustaceans
cephalopods

🥚 Reproduction

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

🌍 Habitat & Distribution

Marine; benthopelagic. Tropical Known only from off Palawan Island (Philippines) in the western sector of the Sulu Sea basin; collected on the insular slope at about 730 m depth (Ref.

🌿 Ecology

Zone Preferences
🌊 Marine
Trophic Level
4±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00174 × L3.21 (TL)
Max TL
58.5cm

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2019

📊 Population Risk & Fisheries

Fishing Vulnerability
47.00/100
Moderate-High vulnerability
Trophic Level
4
Apex / Top predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Last & Gaudiano, 2011

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