Alosa vistonica 

Scope: Global
Language: English

Translate page into:

Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Actinopterygii Clupeiformes Clupeidae

Scientific Name: Alosa vistonica Economidis & Sinis, 1986
Taxonomic Notes: Considered by some people to be a subspecies.

Assessment Information [top]

Red List Category & Criteria: Critically Endangered (Possibly Extinct) A2ace; B1ab(iii,v) ver 3.1
Year Published: 2006
Date Assessed: 2006-01-31
Needs updating
Assessor(s): Crivelli, A.J.
Reviewer(s): Barbieri, R, & Bianco, G. (Mediterranean Workshop, Dec. 2004)
This species is restricted to a small coastal lake (estimated extent of occurrence (EOO) 40 kmĀ²). A major decline in the population was observed some 20 years previously. Although no one has surveyed the population in the last 20 years there is no reason to suspect this trend is not continuing (the threats all remain). The species is assessed as Critically Endangered where a greater than 80% decline in the population is suspected in the last 10 years based on direct observations of habitat decline, reduction in water quality, and increasing salinity and pollutants.

Geographic Range [top]

Range Description:It is restricted to coastal Lake Vistonis in northern Greece.
Countries occurrence:
Possibly extinct:
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:According to the available information the species is possibly extinct. A small population is hypothesized to survive in some channels or streams outflow into the lake (Bobori et al. 2001).
Current Population Trend:Unknown
Additional data:

Habitat and Ecology [top]

Habitat and Ecology:It mainly occupies the upper part of Lake Vistonis where the water is exclusively fresh. It is probably a non-migratory shad. Reproduction occurs in the spring.

Threats [top]

Major Threat(s): Habitat destruction and pollution (organic and industrial). Sewage enters the lake from the nearby town of Xanthi. Water extraction from the inflowing streams is also a serious threat as it may lead to increasing salinity within the lake.

Conservation Actions [top]

Conservation Actions: On paper Greek laws on fishery management protect it, but they are rarely enforced.

Citation: Crivelli, A.J. 2006. Alosa vistonica. The IUCN Red List of Threatened Species 2006: e.T61393A12460473. . Downloaded on 26 April 2018.
Disclaimer: To make use of this information, please check the <Terms of Use>.
Feedback: If you see any errors or have any questions or suggestions on what is shown on this page, please provide us with feedback so that we can correct or extend the information provided