Migratory jackpot individuals fuel rapid ecotype shifts in Galaxias fishes

This research was primarily conducted in Aotearoa New Zealand. We strive to uphold the Treaty of Waitangi, which guarantees rights to the indigenous Māori people of this land. We are grateful for the guidance and trust of Te Rūnanga o Ōtākou, Kāti Huirapa Rūnaka ki Puketeraki, Te Rūnanga o Makaawhio, and Ngāti Apa ki te Rā Tō for their trust and guidance with this research. Similarly, we acknowledge that the Galaxias brevipinnis specimen obtained for genome sequencing, and the freshwater ecosystem it inhabited, are part of a living landscape that holds deep cultural, spiritual, and ecological significance for the Palawa/Pakana peoples, the traditional custodians of lutruwita/Tasmania. We wish to acknowledge the use of New Zealand eScience Infrastructure (NeSI) high performance computing facilities, consulting support and/or training services as part of this research (https://www.nesi.org.nz.). Richard Allibone and Graham Wallis provided samples and contributed evolutionary genetic context on this system. All specimen collection and animal handling were approved by the Animal Ethics Committee of the University of Otago (permits AUP-19-64; AUP-59-2016; AUP-103-2013; AEC-64-14) and by the Department of Conservation (permits 39843-RES; 51959-RES).

This research was supported by University of Otago Department of Zoology funding allocations to J.W., G.M., G.C., T.I., L.D. and M. L. Postgraduate researchers M.D. and J.A. were supported by University of Otago Doctoral Scholarships, and A.I. was supported by a University of Otago Māori Master’s Research Scholarship.

Authors and Affiliations

1. Department of Zoology, University of Otago, Dunedin, New Zealand

   Ashleigh Iwikau, Jason Augspurger, Graham A. McCulloch, Mitra M. Darestani, Tania M. King, Gerard P. Closs, Travis Ingram, P. Mark Lokman, Ludovic Dutoit & Jonathan M. Waters

2. Department of Biochemistry, University of Otago, Dunedin, New Zealand

   Marc A. Bailie

3. Australian National Fish Collection, CSIRO, Hobart, TAS, Australia

   Bruce Deagle

4. School of Natural Sciences, University of Tasmania, Hobart, TAS, Australia

   Christopher P. Burridge

Corresponding author

Correspondence to
Jonathan M. Waters.

Competing interests

The authors declare no competing interests.

Publisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Open Access This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License, which permits any non-commercial use, sharing, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if you modified the licensed material. You do not have permission under this licence to share adapted material derived from this article or parts of it. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by-nc-nd/4.0/.

Reprints and permissions