Occurrences of diploid and polyploid spined loaches (Cobitis elongatoides – taenia – tanaitica) in the river systems of the Western and Central Ukraine

Sergiy Mezhzherin; Anton Tsyba

doi:10.15468/d2ye9u

Occurrences of diploid and polyploid spined loaches (Cobitis elongatoides – taenia – tanaitica) in the river systems of the Western and Central Ukraine

Citation

Mezhzherin S, Tsyba A (2023). Occurrences of diploid and polyploid spined loaches (Cobitis elongatoides – taenia – tanaitica) in the river systems of the Western and Central Ukraine. I. I. Schmalhausen Institute of Zoology. Occurrence dataset https://doi.org/10.15468/d2ye9u accessed via GBIF.org on 2024-12-15.

Description

Habitat Preferences of Diploid and Polyploids Spined Loaches (Сobitis elongatoides – taenia – tanaitica) in the River Systems of Western and Central Ukraine. Mezhzherin, S. V., Tsyba, A. A., Rostovska, O. V. –The analyzes the structure of diploid and polyploid populations within the spined loach group (Сobitis elongatoides – taenia – tanaitica) in the water systems of Western and Central Ukraine (Danube, Dniester, Southern Bug, Vistula, Middle and Upper Dnipro river basins). It reveals a bipolarity in settlement structure, characterized by a sharp prevalence of either diploids or polyploids, with no geographical trends in spatial distribution. Clonal hybrid polyploids, constituting 70% of the studied region's individuals, predominate in settlements along the main river channels, as well as in the middle and lower reaches of first and second-order tributaries. Populations where individuals of the parent species dominate are situated on the periphery: in accessory systems, tributaries of the third and higher orders, upper reaches of first and second-order tributaries, and lakes. This spatial segregation arises from historical circumstances rather than ecological preferences, primarily due to the distance from water corridors through which polyploids invaded in the 1960s-1970s. The displacement of diploid individuals of parent species by clonal hybrid polyploids is described as a universal phenomenon, linked to the advantages of parthenogenetic reproduction and higher survival rates of polyploids in modern ecological conditions.

Sampling Description

Method steps

Taxonomic Coverages

Diploid and polyploid spined loaches (Cobitis elongatoides – taenia – tanaitica)

Animalia
rank: kingdom
Chordata
rank: phylum
Actinopterygii
rank: class
Cypriniformes
rank: order
Cobitidae
rank: family

Geographic Coverages

Western and Central Ukraine

Bibliographic Citations

Contacts

Sergiy Mezhzherin
originator
position: Curator
I.I. Schmalhausen Institute of Zoology NAS of Ukraine
Bohdana Khmelnytskogo, 15
Kyiv
01030
Kyiv
UA
Telephone: +380632636663
email: s.mezhzherin@gmail.com
userId: https://orcid.org/0000-0003-2905-5235

Anton Tsyba
originator
position: User
I.I. Schmalhausen Institute of Zoology NAS of Ukraine
Bohdana Khmelnytskogo, 15
Kyiv
01030
Kyiv
UA
Telephone: +38095530107
email: Tsyba1974@gmail.com
userId: https://orcid.org/0000-0001-5838-0948

Anton Tsyba
metadata author
position: User
I.I. Schmalhausen Institute of Zoology NAS of Ukraine
Bohdana Khmelnytskogo, 15
Kyiv
01030
Kyiv
UA
Telephone: +38095530107
email: Tsyba1974@gmail.com
userId: https://orcid.org/0000-0001-5838-0948

Andriy Babytskiy
user
position: Collection Manager
I.I. Schmalhausen Institute of Zoology NAS of Ukraine
Bohdana Khmelnytskogo, 15
Kyiv
01030
Kyiv
UA
Telephone: +380967774413
email: andriybabytskiy@gmail.com
userId: https://orcid.org/0000-0003-2758-0319

Sergiy Mezhzherin
administrative point of contact
position: Curator
I.I. Schmalhausen Institute of Zoology NAS of Ukraine
Bohdana Khmelnytskogo, 15
Kyiv
01030
Kyiv
UA
Telephone: +380632636663
email: s.mezhzherin@gmail.com
userId: https://orcid.org/0000-0003-2905-5235

Anton Tsyba
administrative point of contact
position: User
I.I. Schmalhausen Institute of Zoology NAS of Ukraine
Bohdana Khmelnytskogo, 15
Kyiv
01030
Kyiv
UA
Telephone: +38095530107
email: Tsyba1974@gmail.com
userId: https://orcid.org/0000-0001-5838-0948