Spatio-temporal genetic tagging of a cosmopolitan planktivorous shark provides insight to gene flow, temporal variation and site-specific re-encounters
| Autor: | Philip D. Doherty, Emmett M. Johnston, David W. Sims, Leslie R. Noble, Graham L. Hall, Sabine P. Wintner, Deborah A. Dawson, Eleonora de Sabata, Brendan J. Godley, Lilian Lieber, Malcolm P. Francis, Catherine S. Jones, Jackie Hall, Clinton A. J. Duffy, Chrysoula Gubili, S. M. Henderson, Matthew J. Witt, Lucy A. Hawkes, Mahmood S. Shivji, Simon Berrow, Jane Sarginson |
|---|---|
| Přispěvatelé: | School of Biological Sciences, University of Aberdeen, Manx Basking Shark Watch and Manx Wildlife Trust, Irish Basking Shark Study Group, Marine and Freshwater Research Centre, GMIT, Hellenic Agricultural Organisation, Fisheries Research Institute, National Institute of Water and Atmospheric Research, New Zealand, Department of Conservation, New Zealand, KwaZulu-Natal Sharks Board, School of Life Sciences, University of KwaZulu-Natal, Centre for Ecology and Conservation, University of Exeter, Environment and Sustainability Institute, University of Exeter, Scottish Natural Heritage Great Glen House, MedSharks, Save Our Seas Shark Research Center and Guy Harvey Research Institute, Nova Southeastern University, School of Biological Sciences, Queen´s University Belfast |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
0301 basic medicine Gene Flow Male Conservation of Natural Resources Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 [VDP] Population Foraging lcsh:Medicine 010603 evolutionary biology 01 natural sciences Population density Article Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Zoogeografi: 486 [VDP] Gene flow Molecular ecology 03 medical and health sciences Spatio-Temporal Analysis Effective population size Marine and Freshwater Research Centre Genetic variation Animals SDG 14 - Life Below Water lcsh:Science education Atlantic Ocean Population Density education.field_of_study Multidisciplinary Ecology lcsh:R Genetic Variation Animal behaviour 030104 developmental biology Geography Genetics Population Matematikk og Naturvitenskap: 400::Basale biofag: 470::Genetikk og genomikk: 474 [VDP] Sharks lcsh:Q Animal Migration Female Seasons Ireland Genetic monitoring Microsatellite Repeats |
| Zdroj: | Lieber, L, Hall, G, Hall, J, Berrow, S, Johnston, E, Gubili, C, Sarginson, J, Francis, M, Duffy, C, Wintner, S P, Doherty, P D, Godley, B J, Hawkes, L A, Witt, M J, Henderson, S M, de Sabata, E, Shivji, M S, Dawson, D A, Sims, D W, Jones, C S & Noble, L R 2020, ' Spatio-temporal genetic tagging of a cosmopolitan planktivorous shark provides insight to gene flow, temporal variation and site-specific re-encounters ', Scientific Reports, vol. 10, 1661 . https://doi.org/10.1038/s41598-020-58086-4 Scientific Reports Scientific Reports, Vol 10, Iss 1, Pp 1-17 (2020) |
| ISSN: | 2045-2322 |
| Popis: | Migratory movements in response to seasonal resources often influence population structure and dynamics. Yet in mobile marine predators, population genetic consequences of such repetitious behaviour remain inaccessible without comprehensive sampling strategies. Temporal genetic sampling of seasonally recurring aggregations of planktivorous basking sharks, Cetorhinus maximus, in the Northeast Atlantic (NEA) affords an opportunity to resolve individual re-encounters at key sites with population connectivity and patterns of relatedness. Genetic tagging (19 microsatellites) revealed 18% of re-sampled individuals in the NEA demonstrated inter/multi-annual site-specific re-encounters. High genetic connectivity and migration between aggregation sites indicate the Irish Sea as an important movement corridor, with a contemporary effective population estimate (Ne) of 382 (CI = 241–830). We contrast the prevailing view of high gene flow across oceanic regions with evidence of population structure within the NEA, with early-season sharks off southwest Ireland possibly representing genetically distinct migrants. Finally, we found basking sharks surfacing together in the NEA are on average more related than expected by chance, suggesting a genetic consequence of, or a potential mechanism maintaining, site-specific re-encounters. Long-term temporal genetic monitoring is paramount in determining future viability of cosmopolitan marine species, identifying genetic units for conservation management, and for understanding aggregation structure and dynamics. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|