Overview

Distribution

Range Description

This species is endemic to Senegal where it is found only along the western edge of the Cap Vert Peninsula of the capital Dakar, from the districts of Yoff in the north to Dakar-Fann on the southern tip including Goreé Island, a total coastline of approx 22 km (Monteiro et al. 2004). The whole of the adjacent land is highly developed and industrialized with associated problems including discharge of pollutants into the marine environment (UNEP 2009) which will probably result in fragmentation of the population. This species is described as most abundant from the districts of Almadies on the north-western tip to Ouakam approx 4 km to the south (Monteiro et al. 2004).
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This species is found in shallow water typically at 3 m depth (Poppe and Poppe 2011). Adults of the species typically grow to 45 mm in length.

Systems
  • Marine
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
EN
Endangered

Red List Criteria
B1ab(iii,v)+2ab(iii,v)

Version
3.1

Year Assessed
2012

Assessor/s
Monnier, E.

Reviewer/s
Tenorio, M.J., Seddon, M. & Peters, H.

Contributor/s

Justification

The species is mainly found in a restricted area on the northern part of the peninsula, near the city of Dakar. This species occurs within the environs of the city with associated marine pollution from the port and the associated factories, as well as disturbance caused by shipping. The size of the specimens taken has been reducing over the last 15 years and the populations of the species is probably decreasing. Hence the species is assessed as Endangered B1ab(iii,v)+2ab(iii,v).

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Population

Population
This species is abundant within the range but there is some decline in the sizes of the individuals taken (E. Monnier pers. comm. 2011).

Population Trend
Unknown
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Threats

Major Threats

The major threat to the species is marine pollution, which impacts the whole of this coastline, in particular around the Cap Vert Peninsular, from industrial and domestic discharges including sewage, chemicals and other toxins, presents a severe problem to marine creatures living in the area (UNEP 2009).

There is a minor threat from shell-collecting by locals.

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Management

Conservation Actions

Conservation Actions
Two populations are found on off-shore islands, which are more isolated from pollution events and collecting. One island is protected from diving and access to the island. However there are no known conservation measures currently in place for this species.
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Wikipedia

Conus mercator

Conus mercator 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. ^ a b Conus mercator Linnaeus, 1975.  Retrieved through: World Register of Marine Species on 27 March 2010.

Gallery

Below are several color forms:

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