Alosa maeotica

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	ACTINOPTERYGII	CLUPEIFORMES	CLUPEIDAE

Scientific Name:	Alosa maeotica
Species Authority:	(Grimm, 1901)

Assessment Information [top]

Red List Category & Criteria:

Least Concern ver 3.1

Year Assessed:

2008

Assessor/s:

Freyhof, J. & Kottelat, M.

Reviewer/s:

Bogutskaya, N., & Smith, K. (IUCN Freshwater Biodiversity Unit)

Justification:
Still more or less abundant in lower reaches of rivers and coastal lagoons. Decline in habitat quality in suitable estuarine ecosystems (limans) in northern Black Sea basin expected to have an impact in the immediate future. However it is not thought that this will cause a population decline by over 30% in the next 10 years.

History:

1996

–

Data Deficient (Baillie and Groombridge 1996)

Geographic Range [top]

Range Description:	Sea of Azov and northern and western part of Black Sea, from where adults enter coastal lagoons to spawn.
Countries:	Native: Bulgaria; Georgia; Romania; Russian Federation; Turkey; Ukraine
Range Map:	(click map to view full version)

Population [top]

Population:	Common within the species range.
Population Trend:	Unknown

Habitat and Ecology [top]

Habitat and Ecology:	Habitat: At sea, pelagic in deep water, entering brackish lagoons to spawn. Biology: Spawns first at two years. Many individuals spawn 2-4 seasons. In Romania, spawners enter Lake Razelm when temperature reaches about 7°C, in March. Spawning starts when temperature reaches about 15°C, in late April-June. Eggs sink to bottom. Spent fish return to sea to feed. In autumn, migrates to southern Black Sea to overwinter. Juveniles migrate to sea or remain in estuaries during first summer. Feeds predominantly on small fish and crustaceans.
Systems:	Freshwater

Habitat and Ecology:

Habitat:
At sea, pelagic in deep water, entering brackish lagoons to spawn.

Biology:
Spawns first at two years. Many individuals spawn 2-4 seasons. In Romania, spawners enter Lake Razelm when temperature reaches about 7°C, in March. Spawning starts when temperature reaches about 15°C, in late April-June. Eggs sink to bottom. Spent fish return to sea to feed. In autumn, migrates to southern Black Sea to overwinter. Juveniles migrate to sea or remain in estuaries during first summer. Feeds predominantly on small fish and crustaceans.

Systems:

Freshwater

Threats [top]

Major Threat(s):	Water abstraction leading to increasing salinity of the limans (coastal lagoons) where the species spawns is a potential threat to the species.

Major Threat(s):

Water abstraction leading to increasing salinity of the limans (coastal lagoons) where the species spawns is a potential threat to the species.

Conservation Actions [top]

Conservation Actions:	No information.

Conservation Actions:

No information.

Citation:	Freyhof, J. & Kottelat, M. 2008. Alosa maeotica. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 04 February 2012.
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