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Migratory destinations and spatial structuring of humpback whales (Megaptera novaeangliae) wintering off Nicaragua.
De Weerdt, Joëlle; Pacheco, Aldo S; Calambokidis, John; Castaneda, Melvin; Cheeseman, Ted; Frisch-Jordán, Astrid; Garita Alpízar, Frank; Hayslip, Craig; Martínez-Loustalot, Pamela; Palacios, Daniel M; Quintana-Rizzo, Ester; Ransome, Nicola; Urbán Ramírez, Jorge; Clapham, Phillip; Van der Stocken, Tom.
Afiliação
  • De Weerdt J; Association ELI-S, Education, Liberté, Indépendance-Scientifique, Allée de Verdalle 39, 33470, Gujan-Mestras, France. eliscientific@gmail.com.
  • Pacheco AS; Biology Department, Vrije Universiteit Brussel, VUB, Pleinlaan, 1050, Brussel, Belgium. eliscientific@gmail.com.
  • Calambokidis J; Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos, Av. Carlos Germán Amezaga #375, Lima, Perú.
  • Castaneda M; Cascadia Research Collective, 218½ W 4th Avenue, Olympia, WA, 98501, USA.
  • Cheeseman T; Fundación Naturaleza El Salvador, San Salvador, El Salvador.
  • Frisch-Jordán A; Happywhale.com, Marine Ecological Research Centre, Southern Cross University, Lismore, NSW, Australia.
  • Garita Alpízar F; Ecología y Conservación de Ballenas, A.C. ECOBAC, Puerto, Vallarta, México.
  • Hayslip C; Cascadia Research Collective, 218½ W 4th Avenue, Olympia, WA, 98501, USA.
  • Martínez-Loustalot P; Department of Fisheries, Wildlife, and Conservation Sciences, Oregon State University, Newport, OR, USA.
  • Palacios DM; Marine Mammal Institute, Oregon State University, Newport, OR, USA.
  • Quintana-Rizzo E; Departamento de Ciencias Marinas y Costeras, Universidad Autónoma de Baja California Sur, La Paz, México.
  • Ransome N; Department of Fisheries, Wildlife, and Conservation Sciences, Oregon State University, Newport, OR, USA.
  • Urbán Ramírez J; Marine Mammal Institute, Oregon State University, Newport, OR, USA.
  • Clapham P; Emmanuel College|Simmons University, Boston, USA.
  • Van der Stocken T; Fundación Naturaleza El Salvador, San Salvador, El Salvador.
Sci Rep ; 13(1): 15180, 2023 09 13.
Article em En | MEDLINE | ID: mdl-37704666
Understanding the migratory patterns of large whales is of conservation importance, especially in identifying threats to specific populations. Migration ecology, including migratory destinations, movements and site fidelity for humpback whales (Megaptera novaeangliae) remain poorly studied in parts of the range of the Central America population, considered endangered under the United States Endangered Species Act. This study aimed to investigate the migratory destinations of humpback whales sighted at two study sites in Nicaragua, which are part of the Central America population. A ten-year photographic database of humpback whales observed off Nicaragua was combined with citizen science contributions and sightings from dedicated research programs. The resulting image collection was compared with available historical photo identifications and databases using an automated image recognition algorithm. This approach yielded 36 years of photographic identification totaling 431 recaptures in Nicaragua (2006-2008 and 2016-2021) and 2539 recaptures (1986-2020) in both feeding and breeding grounds of 176 unique individuals sighted in Nicaragua. Our results showed that photo-identified whales were recaptured between October and April in breeding grounds and year-round in feeding grounds between British Columbia and California, with peak recaptures between June and October. Our study provided first-time evidence on fine-scale site affinity of individual humpback whales within Nicaraguan waters and to other breeding and feeding grounds.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Jubarte Tipo de estudo: Prognostic_studies Limite: Animals País/Região como assunto: America central / Nicaragua Idioma: En Revista: Sci Rep Ano de publicação: 2023 Tipo de documento: Article País de afiliação: França País de publicação: Reino Unido
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Jubarte Tipo de estudo: Prognostic_studies Limite: Animals País/Região como assunto: America central / Nicaragua Idioma: En Revista: Sci Rep Ano de publicação: 2023 Tipo de documento: Article País de afiliação: França País de publicação: Reino Unido