Unravelling the identity of lake ecotype of brown trout (Salmo trutta) in Slovenia : genetic insights and conservation implications

Renko, Gašper (avtor), Bravničar, Jernej (avtor), Sušnik Bajec, Simona (avtor), Palandačić, Anja (avtor), Snoj, Aleš (avtor)

The genetic identity and conservation status of lake ecotype of brown trout (Salmo trutta) populations in Slovenia’s Alpine lakes Bled and Bohinj have been subjected to changes due to historical stocking practices. We aimed to evaluate the genetic differentiation and origins of these populations to advise for correct conservation strategies. Using microsatellite and mitochondrial DNA analysis on 365 trout specimens, we explored the genetic diversity and structure of these populations, comparing them with potential originators. Results revealed distinct genetic profiles between Bled and Bohinj lake trout, with Bohinj lake trout closely aligned with the native Danubian lineage and Bled lake trout showing a hybrid composition, significantly influenced by hatchery-introduced Atlantic lineage strains. The genetic distinction between these populations underscores the complexity of their conservation, showcasing the impact of human-mediated introductions on natural populations. The urgent need for conservation measures to preserve the Bohinj population’s native genetic pool is highlighted, underlining the must to prevent the transfer of individuals from Lake Bled or elsewhere and to reconsider stocking practises in order to prevent further genetic dilution of these iconic European lake dwellers.

• Jezik: Angleški jezik
• Ključne besede: Atlantic trout, conservation genetics, Danube lineage, hybrid swarm, Salmo trutta lacustris, structure pitfalls
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: BF - Biotehniška fakulteta
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2024
• Št. strani: Str. 419-444
• Številčenje: Vol. 93, iss. 5
• PID: 20.500.12556/RUL-164327
• UDK: 597.2/.5:575
• ISSN pri članku: 1875-9866
• DOI: 10.1163/18759866-bja10066
• COBISS.SI-ID: 201356035
• Datum objave v RUL: 22.10.2024

Gradivo je del revije

• Naslov: Contributions to zoology = : Bijdragen tot de dierkunde
• Založnik: Digitaal Productiecentrum van de Universiteit van Amsterdam
• ISSN: 1875-9866
• COBISS.SI-ID: 524374809

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: ribe, postrvi, potočna postrv, Salmo trutta, ekotipi, genetika, ohranjanje, Slovenija

Projekti

• Financer: ARIS - Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije
• Številka projekta: P4-0220
• Naslov: Primerjalna genomika in genomska biodiverziteta

• Financer: ARIS - Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije
• Program financ.: Young researchers