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González, M.L., C.D., Ortega-Ortiz, F.R., Elorriaga-Verplancken, Ú.A., González-Peral, M.A., Liñán-Cabello, A., Frisch-Jordan & L., Medrano-González (2023). A Mother-calf humpback whale (Megaptera novaeangliae) pair from the southeast Pacific population sighted in mexican waters. Aquatic Mammals. 49(2): 208-216. DOI: 10.1578/AM.49.2.2023.208.

A Mother-calf humpback whale (Megaptera novaeangliae) pair from the southeast Pacific population sighted in mexican waters

Myriam Llamas González 1, Christian D. Ortega-Ortiz 2, Fernando R. Elorriaga-Verplancken 3, Úrsula A. González-Peral 4, Marco A. Liñán-Cabello 2, Astrid Frisch-Jordan 5 y Luis Medrano-González 6

1 Universidad de Guadalajara, Centro Universitario de la Costa Sur
2 Universidad de Colima, Facultad de Ciencias Marinas
3 Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas, Departamento de Pesquerías y Biología Marina
4 Universidad Autónoma de Baja California Sur, Departamento de Ciencias Marinas y Costeras
5 Ecología y Conservación de Ballenas AC Puerto Vallarta, Jalisco, Mexico
6 Universidad Nacional Autónoma de México, Facultad de Ciencias
The humpback whale (Megaptera novaean-gliae) is a species with cosmopolitan distribution (Clapham & Mead, 1999); within the large population of the North Pacific Ocean, five Distinct Population Segments (DPSs) have been recognized (Bettridge et al., 2015). Individuals belonging to at least two DPSs (Mexican and Central American) feed from Alaska to California in June through October and then migrate to the coastal waters of Mexico and Central America in October through May to breed (Acevedo & Smultea, 1995; Urbán et al., 2000; Calambokidis et al., 2001, 2008; Alava et al., 2012; Bettridge et al., 2015; Figure 1). Meanwhile, humpback whales from the Southeast Pacific (SEP) DPS feed in waters off southern Chile and Patagonia and in waters surrounding the Antarctic Peninsula; they arrive at breeding grounds between May and December in coastal waters from Peru to Costa Rica (International Whaling Commission [IWC], 1998; Scheidat et al., 2000; Alava et al., 2012; Bettridge et al., 2015; Acevedo et al., 2017; Avila et al., 2020; Figure 1). Therefore, Central American coastal waters represent the potential range limit for different humpback populations/DPSs and correspond to an overlapping region for humpback whales distributed in the Northeast Pacific (NEP) and SEP (Acevedo & Smultea, 1995; Flórez-González et al., 1998; Calambokidis et al., 2001, 2008; Bettridge et al., 2015; Guzmán et al., 2015; Acevedo et al., 2017; Figure 1). However,individual whales can disperse beyond these “recognized” wintering ranges—for example, at least 33 humpback whale sightings were recorded between 2015 and 2018 in Nicaraguan waters belonging to the SEP, including some individuals observed in Antarctic feeding grounds (De Weerdt et al., 2020). © 2023,International journal of online and biomedical engineering

Palabras clave: feeding ground; parent-offspring interaction; population distribution; whale

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