Endangered spined loach Cobitis species in Southwest Germany : A complex network of native, hybrid and newly emerged populations

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Fisheries Management and Ecology. Wiley. 2023, 30(3), pp. 269-283. ISSN 0969-997X. eISSN 1365-2400. Available under: doi: 10.1111/fme.12618
Zusammenfassung

Successful conservation of cryptic species such as representatives of the genus Cobitis presents a challenge for fishery managers. Only Cobitis taenia L. is currently assumed to occur in southwest Germany, where it is classified as critically endangered. Established genetic markers and eDNA analysis identified three Cobitis species in the study area. Cobitis taenia and Cobitis elongatoides were widely distributed in the Rhine River system, primarily forming hybrid species complexes in which polyploid individuals dominate but coexist with diploid parent species. A third non-native species, Cobitis bilineata, has recently become established in the southern part of the Rhine to which it probably migrated naturally via the connected Aare River system. In the Danube River catchment, two populations, including one previously thought to be extinct, comprise both diploid and polyploid representatives of C. elongatoides. Our results provide an important basis for more targeted conservation strategies for Cobitis species currently found in the region.

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570 Biowissenschaften, Biologie
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Ecology
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ISO 690ROCH, Samuel, Patrick BARTOLIN, Pascal VONLANTHEN, Jan BAER, Simon GRUNDMÜLLER, Laura S. EPP, Alexander BRINKER, 2023. Endangered spined loach Cobitis species in Southwest Germany : A complex network of native, hybrid and newly emerged populations. In: Fisheries Management and Ecology. Wiley. 2023, 30(3), pp. 269-283. ISSN 0969-997X. eISSN 1365-2400. Available under: doi: 10.1111/fme.12618
BibTex
@article{Roch2023-03-13Endan-66580,
  year={2023},
  doi={10.1111/fme.12618},
  title={Endangered spined loach Cobitis species in Southwest Germany : A complex network of native, hybrid and newly emerged populations},
  number={3},
  volume={30},
  issn={0969-997X},
  journal={Fisheries Management and Ecology},
  pages={269--283},
  author={Roch, Samuel and Bartolin, Patrick and Vonlanthen, Pascal and Baer, Jan and Grundmüller, Simon and Epp, Laura S. and Brinker, Alexander}
}
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Microsatellite data, eDNA sequence data and morphometric data
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