Overview

Comprehensive Description

Biology

Ovoviviparous (Ref. 205).
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Distribution

Range Description

Recorded from the continental slope of the central Queensland Plateau (northeastern Australia) and from off New Caledonia.
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Off the central Queensland Plateau and off New Caledonia.
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Western Pacific: Australia and New Caledonia.
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Physical Description

Morphology

Vertebrae: 79 - 85
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Size

Max. size

40.9 cm TL (male/unsexed; (Ref. 45056)); 40.8 cm TL (female)
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Diagnostic Description

Body soft fusiform, stout, subcylindrical. Dorsal and ventral coloration moderately contrasted; upper surface pinkish before preservation. Head relatively short (usually < 21% TL). Mouth broad, subequal to eye length. Eyes narrow; upper eyelid without pale naked patch. First dorsal fin well behind rear tip of pectoral fin. Caudal peduncle short (ca 1.6-2 times greatest horizontal length of D1 including spine,
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
Recorded from near the bottom on the continental slope in depths of 708 to 880 m. Maximum size at least 41 cm total length (TL). Male of 338 mm TL was adolescent. Embryo of 95 mm TL. Nothing else known of its biology.

Systems
  • Marine
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Environment

bathypelagic; marine; depth range 108 - 880 m (Ref. 45056)
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Depth range based on 2 specimens in 1 taxon.
Water temperature and chemistry ranges based on 1 sample.

Environmental ranges
  Depth range (m): 769 - 797
  Temperature range (°C): 5.897 - 5.897
  Nitrate (umol/L): 28.636 - 28.636
  Salinity (PPS): 34.439 - 34.439
  Oxygen (ml/l): 4.384 - 4.384
  Phosphate (umol/l): 2.054 - 2.054
  Silicate (umol/l): 34.465 - 34.465

Graphical representation

Depth range (m): 769 - 797
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Life History and Behavior

Life Cycle

Distinct pairing with embrace (Ref. 205).
  • Breder, C.M. and D.E. Rosen 1966 Modes of reproduction in fishes. T.F.H. Publications, Neptune City, New Jersey. 941 p. (Ref. 205)
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Etmopterus dianthus

The following is a representative barcode sequence, the centroid of all available sequences for this species.


No available public DNA sequences.

Download FASTA File
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Statistics of barcoding coverage: Etmopterus dianthus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 1
Specimens with Barcodes: 3
Species With Barcodes: 1
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2003
  • Needs updating

Assessor/s
Kyne, P.M. & Cavanagh, R.D. (SSG Australia & Oceania Regional Workshop, March 2003)

Reviewer/s
Seret, B. & Fowler, S. (Shark Red List Authority)

Contributor/s

Justification
This deepwater lantern shark is currently recorded only from the continental slope of the central Queensland Plateau off Australia and off New Caledonia. Although the species is known only from two small areas and a narrow bathymetric range, further exploratory trawls may indicate a wider distribution. There are presently no major fishing activities in the known area of occurrence, and if captured it is likely discarded due to its small size and lack of commercial value. Survival rates after discarding, however, are not known. Given the global expansion of deepwater trawl fisheries, future pressure may be placed on this small species and any increase in fishing activities within its range should monitor the catch of this and other etmopterid species closely. At present, however, there is no reason to suspect a decline in range, habitat quality or number of mature individuals.
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Population

Population
No available information on populations.

Population Trend
Unknown
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Threats

Major Threats
Presently no major fishing activity in its area of occurrence. The species is not targeted in any commercial fisheries. It is unlikely to be captured frequently on longline gear due to its small size. If captured, it is likely discarded (survival rates are unknown but are likely to be moderate from longline capture and low from trawl capture). However given the global expansion of deepwater trawl fisheries pressure may be placed upon small and medium-sized etmopterid species in the future and this situation should be monitored closely.
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Least Concern (LC)
  • IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006.
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Management

Conservation Actions

Conservation Actions
There are currently no conservation measures in place for this species.
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Wikipedia

Pink lanternshark

The Pink Lanternshark; Etmopterus dianthus, is a shark of the family Etmopteridae found around Australia and New Caledonia, at depths of between 110 and 880 m.[citation needed] Its length is up to 41 cm.

Reproduction is ovoviviparous.

References[edit]

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