Habitat and Ecology
This ghostshark is found along the continental slope and seamounts at depths of 8701,450 m off southern Australia and 5001,400 m off New Zealand (Didier 2008, Walker et al. 2008, Last and Stevens 2009). It reaches a maximum size of at least 108 cm total length and 66 cm body length (BDL), with males maturing at about 55 cm BDL and females around 60 cm BDL (Didier 2008). Like other members of this family, itis oviparous (unpublished data reported in Walker et al. 2008).
Molecular Biology and Genetics
Statistics of barcoding coverage: Hydrolagus homonycteris
Public Records: 0
Specimens with Barcodes: 16
Species With Barcodes: 1
IUCN Red List Assessment
Red List Category
Red List Criteria
- 2011Data Deficient (DD)
This ghostshark is an infrequent bycatch of benthic deepwater trawl fisheries. Within Australian waters the threat from fisheries is likely to be very low or nonexistent following the closure of the South Tasman Rise Fishery (STRF) in 2007 (Patterson and Mazur 2014). If this fishery were to re-open, it could pose a risk to the Australian part of the population. It has also been reported as rare bycatch from the Southern and Eastern Scalefish and Shark Fishery (SESSF) (Walkeret al.2008), although most of the area of this fishery below 700 m depth is closed to fishing (Georgeson et al. 2014).
The Black Ghostshark is a bycatch of New Zealand deepwater trawl and longline fisheries; the bycatch trend increased slightly in the ling longline fishery between 1990-91 and 2010-11 (MFI 2103).
No species-specific conservation measures are currently in place and information regarding its biology is required. There are Commonwealth marine reserves within its Australian range, and the closure of the STRF and depth limit on the SESSF should serve to protect this species from capture in these waters as well. Monitoring is recommended with regard to these fisheries re-opening or expanding in future.
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