Conexión migratoria entre zonas de cría del Pacífico Este y áreas de alimentación en la Península Antártica basado en coincidencias de genotipos individuales
DOI:
https://doi.org/10.25268/bimc.invemar.2021.50.SuplEsp.933Palabras clave:
Megaptera novaeangliae, genotype matching, microsatellites, Southeastern Pacific, AntarcticaResumen
Humpback whales (Megaptera novaeangliae) have a cosmopolitan distribution with populations in all three major ocean basins. Six breeding stocks have been recognised by the IWC that feed around Antarctica and breed in the tropics. The identity of each of these stocks has been defined based on their distribution in high latitude feeding grounds and breeding grounds in tropical sites. Migratory connections between summer and winter grounds have been suggested for these stocks based on photo ID comparisons and genetic analyses. We analysed 114 samples collected in different locations within the stock G breeding grounds, including Ecuador and the northern and southern Pacific of Colombia. We genotyped 15 microsatellite loci, sexed all samples, and performed genotype comparisons. Genotype comparisons were done using a DNA register of previously genotyped individuals from the Colombian breeding ground and the Antarctic Peninsula feeding Area. We found recaptures within each sampling location in the same year, but we also found a few recaptures in the same locations between years both in breeding and feeding grounds. Interestingly, we found recaptures between breeding and feeding grounds using samples collected 20 years apart, providing some information about longevity in this stock. Further comparisons with other data sets (Brazil, North Pacific) are needed to understand the migratory connectivity of this stock.
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Acevedo, J. Aguayo‐Lobo, A. Allen, J. Botero‐Acosta, N. Capella, J. Castro, C. Dalla Rosa, L. Denkinger, J. Félix, F. Flórez-González, L. Garita, F. Guzmán, H. M. Haase, B. Kaufman, G. Llano, M. Olavarría, C. Pacheco, A. S. Plana, J. Rasmussen, K. Scheidat, M. Secchi, E. R. 2017. Migratory preferences of humpback whales between feeding and breeding grounds in the eastern South Pacific. Marine Mammal Science, 33: 1035-1052.
Baker, C. S., L. Flórez-González, R. B. Abernethy, H. C. Rosenbaum, R. W. Slade, J. Capella and J. L. Bannister. 1998. Mitochondrial DNA variation and maternal gene flow among humpback whales of the Southern Hemisphere. Marine Mammal Science 14:721-737.
Baker, C. S. and L. Medrano-González. 2002. Worldwide distribution and diversity of humpback whale mitochondrial DNA lineages. in C. J. Pfeiffer ed. Molecular and Cell Biology of Marine Mammals. Krieger Publishing Company, Malabar, Florida.
Bérubé, M., H. Jorgensen, R. McEwing and P. J. Palsboll. 2000. Polymorphic di-nucleotide microsattelite loci isolated from the humpback whale, Megaptera novaenagliae. Molecular Ecology 9:2181-2183.
Caballero, S., H. Hamilton, L. Fórez-González, J. Capella, C. Olavarría, H. Rosenbaum and C. S. Baker. 2000. Stock identity and diversity of humpback whale mitochondrial DNA lineages on the Colombian winter breeding grounds. International Whaling Commission, report SC/52/IA14. 1-7 pp.
Caballero, S., H. Hamilton, C. Jaramillo, et al. 2001. Genetic characterization of the Colombian Pacific Coast humpback whale population using RAPD and mitochondrial DNA sequences. Memoirs of the Queensland Museum 47:459-464.
Constantine, R., J. A. Jackson, D. Steel, et al. 2012. Abundance of humpback whales in Oceania using photo-identification and microsatellite genotyping. Marine Ecology Progress Series 453:249-261.
Cypriano-Souza, A. L., M. H. Engel, S. Caballero, et al. 2016. Genetic differentiation between humpback whales (Megaptera novaeangliae) from Atlantic and Pacific breeding grounds of South America. Marine Mammal Science 33:457-479.
Félix, F., S. Caballero and C. Olavarría. 2012. Genetic diversity and population structure of humpback whales (Megaptera novaeangliae) from Ecuador based on mitochondrial DNA analyses. Journal of Cetacean Management 12:71-77.
Félix, F., D. M. Palacios, S. K. Salazar, S. Caballero, B. Haase and J. Falconi. 2011. The 2005 Galápagos humpback whale expedition: a first attempt to assess and characterise the population in the Archipelago. Journal of Cetacean Management 3:291-299.
Flórez-González, L., J. Capella, B. Hasse, G. Bravo, F. Félix and T. Gerrodette. 1998. Changes in winter destinations and the northernmost record of southeastern Pacific humpback whales. Marine Mammal Science 14:189-196.
Garrigue, C., A. Aguayo, V. L. U. Amante-Helweg, et al. 2002. Movements of humpback whales in Oceania, South Pacific. Journal of Cetacean Management 4:255-260.
Guzman, H. M. and F Félix. 2017. Movements and habitat use by Southeast Pacific humpback whales (Megaptera novaeangliae) satellite tracked at two breeding sites. Aquatic Mammals 43: 139-155.
International Whaling Commission. 1998. Annex G – Report of the Sub-Committee on the Comprehensive Assessment of Southern Hemisphere Humpback Whales. Report to the International Whaling Commission 48:170–182
Krützen, M., L. M. Barré, L. M. Möller, M. R. Heithaus, C. Simms and W. B. Sherwin. 2002. A biopsy system for small cetaceans: darting success and wound healing in Tursiops spp. Marine Mammal Science 18:863-878.
Marshall, T. C., J. Slate, L. E. B. Kruuk and J. M. Pemberton. 1998. Statistical confidence for likelihood-based paternity inference in natural populations. Molecular Ecology 7:639-655.
Olavarría, C., C. S. Baker, C. Garrigue, et al. 2007. Population structure of South Pacific humpack whales and the origin of the eastern Polynesian Breeding grounds. Marine Ecology Progress Series 330:257-268.
Pallin, L. J., C. S Baker, D. Steel, et al. 2018. High pregnancy rates in humpback whales (Megaptera novaeangliae) around the Western Antarctic Peninsula, evidence of a rapidly growing population. Royal Society Open Science 5: 180017.
Palsboll, P. J., M. Bérubé, A. H. Larsen and H. Jorgensen. 1997. Primers for the amplification of tri-and tetramer microsatellite loci in baleen whales. Molecular Ecology 6:893-895.
Sambrook, J., E. F. Fritsch and T. Maniatis. 1989. Molecular cloning: a laboratory manual. Cold Spring Harbor Laboratory Press, New York, U.S.A.
Steel, D., M. Anderson, C.
Garrigue, et al. 2017. Migratory interchange of humpback whales (Megaptera novaeangliae) among breeding grounds of Oceania and connections to Antarctic feeding areas based on genotype matching. Polar Biology.
Stevick, P. T., A. Aguayo, J. Allen, et al. 2004. Migrations of individually identified humpback whales between the Antarctic Peninsula and South America. Journal of Cetacean Research and Management 6: 109-113.
Valsecchi, E. and W. Amos. 1996. Microsatellite markers for the study of cetacean populations. Molecular Ecology 5:151-156.
Waldick, R. C., M. W. Brown and B. N. White. 1999. Characterization and isolation of microsatellite loci from the endangered North Atlantic right whale. Molecular Ecology 8:1763-1765.
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