Abrau sprat

The Abrau sprat (Clupeonella abrau) is a species of freshwater fish in the family Clupeidae.^[2] It is found landlocked in Russia in a single locality, Lake Abrau, located at 70 m above sea level near the Black Sea coast close to Novorossiysk.^[3] The lake is small and has been stocked by several alien species, whence the Abrau sprat is considered critically endangered.^[4] As a result of the 2019 expedition, several individuals of the Abrau sprat were caught and their mitocondrial genome were sequenced, which showed their identity with the museum specimens.^[5] This confirmed that the C. abrau is present in the fish community and is capable of reproducing in the Lake Abrau.^[5]

Abrau sprat
Conservation status
Critically Endangered  (IUCN 3.1)[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Clupeiformes
Family:	Ehiravidae
Genus:	Clupeonella
Species:	C. abrau
Binomial name
Clupeonella abrau (Maliatsky, 1930)
Synonyms
Clupeonella abrau abrau (Maliatsky, 1930) Clupeonella muhlisi (non Neu, 1934) Harengula abrau Maliatsky, 1930

A sprat of the Lake Apolyont in Turkey, linked to the Sea of Marmara, was earlier treated as a subspecies of the Abrau sprat, Clupeonella abrau muhilisi, but has more recently been considered an independent species Clupeonella muhlisi.^[1][6]