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🌊 Marine Data Deficient 🌡️ Tropical

Yirrkala Calyptra

Yirrkala calyptra McCosker, 2011
Max Length
35.8 cm
Max Weight
-
Lifespan
-
Trophic Level
3.7
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
26.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Yirrkala Calyptra (Yirrkala calyptra), first described by McCosker, 2011 is a medium-sized fish in the family Ophichthidae (order Anguilliformes). Adults typically reach 35.80 cm in maximum length. It inhabits marine coastal and open-ocean environments. It occurs in Tropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator. On the IUCN Red List, it is classified as Data Deficient.

Scientific Name
Yirrkala calyptra
Authority
McCosker, 2011
Habitat
Marine
Climate
Tropical
IUCN Status
DD
Max Length
35.8 cm
Trophic Level
3.7
Resilience
High
Vulnerability
26.00/100
Salinity
30–40 ppt

🐟 Physical Description

Vertebrae: 144 - 147. This species is distinguished by the following unique set of characters: head 6.3-6.6% of total length (TL); tail 46-49% of TL; dorsal fin origin is nearly above gill openings; eye behind middle of upper jaw; supraorbital pores 4; teeth are conical, minute, uniserial on jaws and posteriorly on vomer; colour yellowish, slightly darker dorsally, a distinctive black band from rear of orbit to rictus; total vertebrae 144-147; mean vertebral formula 7-75-146 (n=4) .: eel-like.

🌀 Behaviour

Behavioural data for Yirrkala Calyptra 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; demersal. Tropical

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.7±0.6

📐 Morphometrics

Length–Weight Relationship: W = 0.00093 × L2.99 (TL)
Max TL
35.8cm
Vertebrae
146

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
26.00/100
Low vulnerability
Trophic Level
3.7
Predator
Climate Zone
Tropical
Described By
McCosker, 2011

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