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🌊 Marine Data Deficient 🌡️ Tropical

Indonesian filetail catshark

Dichichthys nigripalatum Fahmi & Ebert, 2018
Max Length
54.8 cm
Max Weight
-
Lifespan
-
Trophic Level
3.9
Depth
170–190 m
Climate
Tropical
Resilience
-
Vulnerability
27.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Indonesian filetail catshark (Dichichthys nigripalatum) is a ray-finned fish. It inhabits marine (saltwater) waters. This species can reach a maximum total length of 54.8 cm. It occurs at depths between 170 and 190 metres. With a trophic level of 3.9, it is a mid-level predator. It is assessed as Data Deficient on the IUCN Red List.

Scientific Name
Dichichthys nigripalatum
Authority
Fahmi & Ebert, 2018
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
IUCN Status
DD
Max Length
54.8 cm
Depth Range
170–190 m
Trophic Level
3.9
Vulnerability
27.00/100
Salinity
30–40 ppt

🔬 Taxonomy

Genus
Dichichthys
Dichichthys
Species
Indonesian filetail catshark
Dichichthys nigripalatum

🐟 Physical Description

This moderate-sized species is distinguished by the following characters: slender body has soft-velvety skin, where dermal denticles on side and upper body are tricuspidate; coloration of body uniformly plain medium brown; head slightly depressed; snout is relatively short; mouth curved, the upper and lower labial furrows are conspicuous with the uppers and lowers of equal lengths; roof of mouth blackish with darker pores; teeth are mainly tricuspidate with greatly elongate median cusps, about 50 rows in both jaws; origin of the first dorsal fin is posterior to the insertion of the pelvic fins, pre-first dorsal fin is slightly posterior of body mid-length; origin of the second dorsal fin is posterior to mid-length of anal fin base; pelvic fins origin and vent are slightly posterior to midlength; second dorsal fin is slightly larger than first; caudal peduncle is relatively short, pronounced caudal crests on upper and lower anterior caudal fin margins has enlarged denticles; vertebral counts monospondylous centra 42, precaudal centra 90 .: elongated; Cross section: oval.

🌀 Behaviour

Behavioural data for Indonesian filetail catshark is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

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

🌍 Habitat & Distribution

Marine; bathydemersal; depth range 170 - 190 m . Tropical widespread in the region.

🌿 Ecology

Zone Preferences
🌊 Marine
Trophic Level
3.9±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
54.8cm

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2019

📊 Population Risk & Fisheries

Fishing Vulnerability
27.00/100
Low vulnerability
Trophic Level
3.9
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Fahmi & Ebert, 2018

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