Lined Lanternshark, Etmopterus dislineatus Last, Burgess & Séret 2002
Lined Lantern Shark
Introduction
The Lined Lanternshark, Etmopterus dislineatus, is a species with unique features and a healthy population.
What do Lined Lanternsharks look like?
Identification
The Lined Lanternshark is light silvery brown on top with a pattern of dots and dashes running longitudinally down its body. The underside is darker and has distinct black markings at the pelvic fin, caudal peduncle and upper caudal fin. As is the case with all Lanternsharks, they have light organs that give them bioluminescent capability, which it uses to attract prey in the dark depths where it resides. It is distinguished by its small size, reaching a maximum length of only 45 cm and its large green eyes, which aid in vision in low-light environments.
Where do Lined Lanternsharks live?
Habitat
This species is found on the continental slope, typically at depths ranging from 590 to 800 meters.
Distribution
Endemic to northeast Australia, the Lined Lanternshark is found in a relatively restricted range. While it is known to occur within a limited depth range, its actual distribution may extend beyond current records.
The map below shows the Australian distribution of the species based on public sightings and specimens in Australian Museums. Source: Atlas of Living Australia.
What is the diet and reproductive behaviour of Lined Lanternsharks?
Feeding and diet
The diet of the Lined Lanternshark consists of small fish and invertebrates, typical of many lantern shark species. It likely plays a role in the deep-sea ecosystem as a predator of smaller organisms.
Life cycle
As a viviparous species, the Lined Lanternshark gives birth to live young. Its reproductive characteristics is thought to be limited and similar to the Smooth Lanternshark.
References:
- https://fishesofaustralia.net.au/home/species/3508
- Kyne, P.M. & Cavanagh, R.D. 2015. Etmopterus dislineatus. The IUCN Red List of Threatened Species 2015: e.T41806A68622497. https://dx.doi.org/10.2305/IUCN.UK.2015-4.RLTS.T41806A68622497.en.