Historical Mitogenomic Diversity and Population Structuring of Southern Hemisphere Fin Whales

Author:

Buss Danielle L.12ORCID,Atmore Lane M.23ORCID,Zicos Maria H.4,Goodall-Copestake William P.15,Brace Selina4ORCID,Archer Frederick I.6ORCID,Baker C. Scott7,Barnes Ian4,Carroll Emma L.8ORCID,Hart Tom9,Kitchener Andrew C.1011ORCID,Sabin Richard4ORCID,Sremba Angela L.7,Weir Caroline R.12ORCID,Jackson Jennifer A.1ORCID

Affiliation:

1. British Antarctic Survey, National Environment Research Council, Cambridge CB3 0ET, UK

2. Department of Archaeology, University of Cambridge, Downing Street, Cambridge CB2 3DZ, UK

3. Centre for Ecological and Evolutionary Synthesis, Department of Biosciences, University of Oslo, 0316 Oslo, Norway

4. The Natural History Museum, Cromwell Road, London SW7 5BD, UK

5. Scottish Association for Marine Science, Oban PA37 1QA, UK

6. National Oceanic and Atmospheric Administration, Southwest Fisheries Science Center, La Jolla, CA 92037, USA

7. Marine Mammal Institute and Department of Fisheries and Wildlife, Hatfield Marine Science Center, Oregon State University, Newport, OR 97365, USA

8. Te Kura Mātauranga Koiora—School of Biological Sciences, University of Auckland Waipapa Taumata Rau, Auckland 1010, New Zealand

9. Department of Zoology, University of Oxford, Mansfield Road, Oxford OX1 3SZ, UK

10. Department of Natural Sciences, National Museums Scotland, Chambers Street, Edinburgh EH1 1JF, UK

11. School of Geosciences, University of Edinburgh, Drummond Street, Edinburgh EH8 9XP, UK

12. Falklands Conservation, Ross Road, Stanley F1QQ 1ZZ, Falkland Islands

Abstract

Fin whales Balaenoptera physalus were hunted unsustainably across the globe in the 19th and 20th centuries, leading to vast reductions in population size. Whaling catch records indicate the importance of the Southern Ocean for this species; approximately 730,000 fin whales were harvested during the 20th century in the Southern Hemisphere (SH) alone, 94% of which were at high latitudes. Genetic samples from contemporary whales can provide a window to past population size changes, but the challenges of sampling in remote Antarctic waters limit the availability of data. Here, we take advantage of historical samples in the form of bones and baleen available from ex-whaling stations and museums to assess the pre-whaling diversity of this once abundant species. We sequenced 27 historical mitogenomes and 50 historical mitochondrial control region sequences of fin whales to gain insight into the population structure and genetic diversity of Southern Hemisphere fin whales (SHFWs) before and after the whaling. Our data, both independently and when combined with mitogenomes from the literature, suggest SHFWs are highly diverse and may represent a single panmictic population that is genetically differentiated from Northern Hemisphere populations. These are the first historic mitogenomes available for SHFWs, providing a unique time series of genetic data for this species.

Funder

Natural Environment Research Council

Falklands Conservation

Publisher

MDPI AG

Subject

Genetics (clinical),Genetics

Reference120 articles.

1. Whales as Marine Ecosystem Engineers;Roman;Front. Ecol. Environ.,2014

2. Whales Maintained a High Abundance of Krill; Both Are Ecosystem Engineers in the Southern Ocean;Willis;Mar. Ecol. Prog. Ser.,2014

3. Whale-Fall Ecosystems: Recent Insights into Ecology, Paleoecology, and Evolution;Smith;Ann. Rev. Mar. Sci.,2015

4. The Fin Whale, Balaenoptera physalus;Mizroch;Mar. Fish. Rev.,1984

5. Mori, M., and Butterworth, D.S. (2021, July 01). A First Step towards Modelling the Krill–predator Dynamics of the Antarctic Ecosystem. Available online: http://hdl.handle.net/11427/18458.

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3