Myxine jespersenae

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	MYXINI	MYXINIFORMES	MYXINIDAE

Scientific Name:	Myxine jespersenae
Species Authority:	Møller, Feld, Poulsen, Thomsen & Thormar, 2005

Assessment Information [top]

Red List Category & Criteria:	Least Concern ver 3.1
Year Published:	2011
Assessor/s:	Mincarone, M.M.
Reviewer/s:	Polidoro, B., Knapp, L. & Carpenter, K.E.
Contributor/s:
Justification: This species is only known from a few deep water specimens taken in the North Atlantic. There are no known threats to this species. However, may be caught in bottom trawling fisheries within its range. It is listed as Least Concern. More research is needed on this species distribution, population, biology, life history, and potential threats, especially as there are few records to understand its distribution and the species was only described in 2005. It has likely been previously mistaken for Myxine glutinosa in bycatch and scientific survey records.

Geographic Range [top]

Range Description:	This species is known from the North Atlantic, eastern Davis Strait, Denmark Strait, Reykjanes Ridge, and southeast of Iceland. The disjunctive distribution is a result of a very limited sampling effort in the waters around southern Greenland (Møller et al. 2005). It occurs sympatrically with Myxine glutinosa, although with a rather limited overlap in vertical distribution (752-1556 vs. 64-782 m) and no documented capture of both species in the same haul or trap exists.
Countries:	Native: Greenland; Iceland
FAO Marine Fishing Areas:	Native: Atlantic – northeast; Atlantic – northwest
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population:	This population is only known from a few type specimens collected at 17 locations.
Population Trend:	Unknown

Habitat and Ecology [top]

Habitat and Ecology:	This species is usually taken from muddy bottoms and cold waters (3.7-4.7°C) on the lower slope at depths from 752-1,556 m. According to Møller et al. (2005), the eggs of a single damaged female were in various stages of maturation, elliptical, up to 23.6 x 8.5 mm. All eggs were in mesenteries and no anchor filaments were found (Moller et al. 2005).
Systems:	Marine

Threats [top]

Major Threat(s):	There are no known direct threats to this deep water species. There are deep water fisheries active within the currently known distribution range but no records are being reporting from by-catch incidences. This is likely due to this species being lumped with Myxine glutinosa as by-catch since the species was only described in 2005.

Major Threat(s):

There are no known direct threats to this deep water species. There are deep water fisheries active within the currently known distribution range but no records are being reporting from by-catch incidences. This is likely due to this species being lumped with Myxine glutinosa as by-catch since the species was only described in 2005.

Conservation Actions [top]

Conservation Actions:	There are no conservation measures in place, but more research is needed on this species' biology, population size, distribution and impact of deep-water trawling activities.

Conservation Actions:

There are no conservation measures in place, but more research is needed on this species' biology, population size, distribution and impact of deep-water trawling activities.

Citation:	Mincarone, M.M. 2011. Myxine jespersenae. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 19 May 2013.
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