The minnow Phoxinus lumaireul (Leuciscidae) shifts the Adriatic–Black Sea basin divide in the north-western Dinaric Karst region

Reier, Susanne (author), Kruckenhauser, Luise (author), Snoj, Aleš (author), Trontelj, Peter (author), Palandačić, Anja (author)

Karst landscapes are characterized by intermittent and sinking streams. The most common method used to study underground hydrological connections in karst is tracing tests. However, a more biologically oriented approach has been suggested: analysis of the genetic structure of aquatic organisms. Biological tracers can be sought among trogloxenes, that is, surface species that occasionally enter caves and groundwater. One such example is the fish genus Phoxinus, which exhibits high genetic diversity and complex phylogeography in the Balkan Peninsula. In the north-western Dinaric Karst, the complex hydrological network was digitalized in 2020. Contemporaneously, Phoxinus lumaireul populations in the Slovenian Dinaric Karst were intensively sampled and analysed for fragments of two mitochondrial genes and one nuclear gene. The derived phylogeographic structure and data on hydrological connections were compared to evaluate support for three alternative scenarios: The genetic structure (1) is a consequence of the ongoing geneflow through underground connections, (2) reflects a previous hydrological network or (3) is an outcome of anthropogenic translocations. The results suggest that the first two scenarios seem to have played a major role, while the third has not had profound effects on the genetic composition. Comparison between the genetic structure of Slovenian Dinaric Karst sampling sites and that of hydrologically isolated reference sampling sites indicated a greater genetic connectivity in the former. Moreover, the range of Adriatic (1a) and Black Sea (1c) haplotypes does not correspond to the Adriatic–Black Sea basin divide but is shifted northwards.

• Language: English
• Keywords: Dinaric Karst, paleohydrology, Phoxinus, underground connections, underground migration
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: BF - Biotechnical Faculty
• Publication status: Published
• Publication version: Version of Record
• Year: 2022
• Number of pages: 22 str.
• Numbering: Vol. 15, iss. 6, e2449
• PID: 20.500.12556/RUL-141925
• UDC: 597.2/.5
• ISSN on article: 1936-0592
• DOI: 10.1002/eco.2449
• COBISS.SI-ID: 115342083
• Publication date in RUL: 11.10.2022

Record is a part of a journal

• Title: Ecohydrology
• Publisher: Wiley
• ISSN: 1936-0592
• COBISS.SI-ID: 2990472

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Keywords: ribe, Proxinus lumaireul, pisanec, genetika, paleohidrologija, dinarski kras

Projects

• Funder: Other - Other funder or multiple funders
• Funding programme: Austrian Science Fund
• Project number: I4131-B25

• Funder: ARRS - Slovenian Research Agency
• Project number: N1-0096
• Name: Razširjanje vodnih organizmov na kraških območjih