Neritina natalensis

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

Bibliography

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	MOLLUSCA	GASTROPODA	CYCLONERITIMORPHA	NERITIDAE

Scientific Name:	Neritina natalensis
Species Authority:	Reeve, 1855

Assessment Information [top]

Red List Category & Criteria:

Near Threatened ver 3.1

Year Published:

2010

Assessor/s:

Appleton, C., Kristensen, T.K., Lange, C.N., Stensgaard, A-S. & Van Damme, D.

Reviewer/s:

Seddon, M., Van Damme, D., Graf, D.L., Appleton, C. & Bennett, L.

Justification:
Due to the cumulative impact of the major threats affecting the species over its range, it is thought that this species almost meets the threshold for qualifying as Vulnerable under criterion A. Currently there is the potential of a 20% decline in the species across Africa.

History:

1996

–

Data Deficient

Geographic Range [top]

Range Description:	Globally, this species is known from Somalia to South Africa. Eastern Africa: It is found in the mangrove swamps and lagoons of East Africa's coastal strip (Kenya and Tanzania). No specific locality in the region is mentioned in the traced literature for where the species has been recorded. Northeastern Africa: It is known from south Somalia (at the mouth of the Giuba River). Southern Africa: It is recorded from the coastal lowlands of Mozambique and eastern South Africa (Kwazulu-Natal southwards to Port St Johns in eastern Cape) (Appleton 2002).
Countries:	Native: Kenya; Mozambique; Somalia; South Africa; Tanzania, United Republic of
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population:	This species is widespread and found at low densities.
Population Trend:	Unknown

Habitat and Ecology [top]

Habitat and Ecology:	This species thrives in mangrove swamps and lagoons.
Systems:	Freshwater

Threats [top]

Major Threat(s):	Major threats include Alcoa titanium and dune mining, and sedimentation mainly occurring in the southern African region. Residential and recreational development (marina construction) in South Africa and aquaculture in Tanzania (Rufiji River delta), both of which lead to habitat destruction. In Mozambique, tractor harvesting for prawns is also destroying habitat.

Major Threat(s):

Major threats include Alcoa titanium and dune mining, and sedimentation mainly occurring in the southern African region. Residential and recreational development (marina construction) in South Africa and aquaculture in Tanzania (Rufiji River delta), both of which lead to habitat destruction. In Mozambique, tractor harvesting for prawns is also destroying habitat.

Conservation Actions [top]

Conservation Actions:	In southern Africa, ecological impact studies are required for all coastal developments affecting the environment.

Conservation Actions:

In southern Africa, ecological impact studies are required for all coastal developments affecting the environment.

Bibliography [top]

	Appleton, C.C. 1996. Freshwater Molluscs of Southern Africa: With a Chapter on Bilharzia and its Snail Hosts. University of Natal Press, Pietermaritzburg. Appleton, C.C. 2002. Mollusca. In: Day, J.A. and de Moor, I.J. (eds), Arachnida and Mollusca, pp. 42-125. Brown, D.S. 1994. Freshwater Snails of Africa and their Medical Importance. Taylor & Francis, London. Connolly, M. 1928. Molluschi continentali della Somalia. Atti. Soc. Mat. Nat. Modena 7: 116 - 153. Danish Bilharziasis Laboratory (DBL) 1987. A field guide to African freshwater snails. 2. East African species. Second edition. DBL, Charlottenlund, Denmark. IUCN. 2010. IUCN Red List of Threatened Species (ver. 2010.3). Available at: http://www.iucnredlist.org. (Accessed: 2 September 2010).

Appleton, C.C. 1996. Freshwater Molluscs of Southern Africa: With a Chapter on Bilharzia and its Snail Hosts. University of Natal Press, Pietermaritzburg.

Appleton, C.C. 2002. Mollusca. In: Day, J.A. and de Moor, I.J. (eds), Arachnida and Mollusca, pp. 42-125.

Brown, D.S. 1994. Freshwater Snails of Africa and their Medical Importance. Taylor & Francis, London.

Connolly, M. 1928. Molluschi continentali della Somalia. Atti. Soc. Mat. Nat. Modena 7: 116 - 153.

Danish Bilharziasis Laboratory (DBL) 1987. A field guide to African freshwater snails. 2. East African species. Second edition. DBL, Charlottenlund, Denmark.

IUCN. 2010. IUCN Red List of Threatened Species (ver. 2010.3). Available at: http://www.iucnredlist.org. (Accessed: 2 September 2010).

Citation:	Appleton, C., Kristensen, T.K., Lange, C.N., Stensgaard, A-S. & Van Damme, D. 2010. Neritina natalensis. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 24 May 2012.
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