Overview

Distribution

Range Description

This is a deep water species endemic to South Africa, and occurs from Coffee Bay to Durban (Tenorio and Monteiro 2008).
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
There are no habitats data available for this species in the literature. It is a deepwater species, ranging from 60-100 m depth (S. Veldsman pers. comm. October 2011). Recently, new populations were found at Port Shepstone (S. Veldsman pers comm. October 2011).

The typical size for shells of this species are between 20-40 mm in length (Tenorio and Monteiro 2008).

Systems
  • Marine
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Depth range based on 9 specimens in 1 taxon.
Water temperature and chemistry ranges based on 3 samples.

Environmental ranges
  Depth range (m): 50 - 200
  Temperature range (°C): 18.695 - 22.041
  Nitrate (umol/L): 2.066 - 7.646
  Salinity (PPS): 35.367 - 35.422
  Oxygen (ml/l): 3.991 - 4.814
  Phosphate (umol/l): 0.177 - 0.277
  Silicate (umol/l): 2.529 - 4.033

Graphical representation

Depth range (m): 50 - 200

Temperature range (°C): 18.695 - 22.041

Nitrate (umol/L): 2.066 - 7.646

Salinity (PPS): 35.367 - 35.422

Oxygen (ml/l): 3.991 - 4.814

Phosphate (umol/l): 0.177 - 0.277

Silicate (umol/l): 2.529 - 4.033
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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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
2013

Assessor/s
Veldsman, S.G.

Reviewer/s
Peters, H. & Raybaudi-Massilia, G.

Contributor/s

Justification
This species is endemic to South Africa, and occurs from Coffee Bay to Durban. This species is restricted in range and is inherently rare in nature, but is currently not facing any threats. It has a deepwater habitat and has protection afforded from strict legislation on dredging in Natal. It has therefore been listed as Least Concern.
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Population

Population
There are is no population available for this species in the literature.

Population Trend
Unknown
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Threats

Major Threats
There are currently no major threats affecting this deepwater species. There is only small-scale dredging occurring in the area (S. Veldsman pers. comm. October 2011).
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Management

Conservation Actions

Conservation Actions
This species is restricted in its range and is inherently rare in nature. It would benefit from further research into its distribution and habitat. There are no known conservation measures currently in place for this species, although strict legislation on dredging in Natal is likely to provide protection to this species.
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Wikipedia

Conus visagenus

Conus visagenus is a species of sea snail, a marine gastropod mollusk in the family Conidae, the cone snails and their allies.[1]

Like all species within the genus Conus, these snails are predatory and venomous. They are capable of "stinging" humans, therefore live ones should be handled carefully or not at all.

Contents

Description

Distribution

References

  1. ^ Conus visagenus Kilburn, 1974.  Retrieved through: World Register of Marine Species on 27 March 2010.
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