Migratory round-trip of individually identified humpback whales at the Strait of Magellan: clues on transit times and phylopatry to destinations

Humpback whales undertake seasonal migration between productive high-latitude areas where they feed in summer and low-latitude tropical waters where mating and calving occur during winter. In the eastern south Pacific, the species breeds off Colombia and Ecuador, and feeds primarily in the western A...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	CAPELLA,JUAN J, GIBBONS,JORGE, FLÓREZ-GONZÁLEZ,LILIÁN, LLANO,MARTHA, VALLADARES,CARLOS, SABAJ,VALERIA, VILINA,YERKO A
Lenguaje:	English
Publicado:	Sociedad de Biología de Chile 2008
Materias:	Colombia humpback whales migration photo-identification Strait of Magellan
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2008000400008
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0716-078X2008000400008
record_format	dspace
spelling	oai:scielo:S0716-078X20080004000082009-06-08Migratory round-trip of individually identified humpback whales at the Strait of Magellan: clues on transit times and phylopatry to destinationsCAPELLA,JUAN JGIBBONS,JORGEFLÓREZ-GONZÁLEZ,LILIÁNLLANO,MARTHAVALLADARES,CARLOSSABAJ,VALERIAVILINA,YERKO A Colombia humpback whales migration photo-identification Strait of Magellan Humpback whales undertake seasonal migration between productive high-latitude areas where they feed in summer and low-latitude tropical waters where mating and calving occur during winter. In the eastern south Pacific, the species breeds off Colombia and Ecuador, and feeds primarily in the western Antarctic Peninsula and in the waters of the Strait of Magellan (SM), recently described as a new feeding ground for humpback whales. Comparison of fluke photographs of 62 individuals from the SM obtained during the austral summer from 1999 to 2005 and 1,042 individuals from Colombia, provided conclusive matches for six individuals, with an overall interchange Índex of 0.093. Eight migratory trips between summer and winter grounds were registered for four whales during a complete migratory round-trip in consecutive years. The mínimum distance traveled in a one-way trip ranged from 6,650 to 7,000 km. The duration of the two fastest trips between these migratory destinations was 88 and 99 days, with a mean speed of migration of 76 and 67 km day-1 respectively. Five of the whales present in both areas were males and three mitochondrial DNA haplotypes were identified: EM-1 for three individuals, EM-2 for two and EM-3 for the last one, all of which have been previously described for humpback whales from Colombia. All six individuals were seen several days in each season in the SM (as many as 39 days in one case), with an average stay of 72 ± 40 days (n = 20) per year, ranging from 3 to 125 days. On average, each of the six individuals was seen in the SM during 71 ± 18 % of the seven monitored summers. Three individuals were re-sighted in the SM six out of the seven surveyed years, during four to six consecutive years. These results provide the first direct evidence to include humpback whales that feed in the Strait of Magellan as part of the eastern south Pacific population of whales that feed off Colombian waters.info:eu-repo/semantics/openAccessSociedad de Biología de ChileRevista chilena de historia natural v.81 n.4 20082008-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2008000400008en10.4067/S0716-078X2008000400008
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Colombia humpback whales migration photo-identification Strait of Magellan
spellingShingle	Colombia humpback whales migration photo-identification Strait of Magellan CAPELLA,JUAN J GIBBONS,JORGE FLÓREZ-GONZÁLEZ,LILIÁN LLANO,MARTHA VALLADARES,CARLOS SABAJ,VALERIA VILINA,YERKO A Migratory round-trip of individually identified humpback whales at the Strait of Magellan: clues on transit times and phylopatry to destinations
description	Humpback whales undertake seasonal migration between productive high-latitude areas where they feed in summer and low-latitude tropical waters where mating and calving occur during winter. In the eastern south Pacific, the species breeds off Colombia and Ecuador, and feeds primarily in the western Antarctic Peninsula and in the waters of the Strait of Magellan (SM), recently described as a new feeding ground for humpback whales. Comparison of fluke photographs of 62 individuals from the SM obtained during the austral summer from 1999 to 2005 and 1,042 individuals from Colombia, provided conclusive matches for six individuals, with an overall interchange Índex of 0.093. Eight migratory trips between summer and winter grounds were registered for four whales during a complete migratory round-trip in consecutive years. The mínimum distance traveled in a one-way trip ranged from 6,650 to 7,000 km. The duration of the two fastest trips between these migratory destinations was 88 and 99 days, with a mean speed of migration of 76 and 67 km day-1 respectively. Five of the whales present in both areas were males and three mitochondrial DNA haplotypes were identified: EM-1 for three individuals, EM-2 for two and EM-3 for the last one, all of which have been previously described for humpback whales from Colombia. All six individuals were seen several days in each season in the SM (as many as 39 days in one case), with an average stay of 72 ± 40 days (n = 20) per year, ranging from 3 to 125 days. On average, each of the six individuals was seen in the SM during 71 ± 18 % of the seven monitored summers. Three individuals were re-sighted in the SM six out of the seven surveyed years, during four to six consecutive years. These results provide the first direct evidence to include humpback whales that feed in the Strait of Magellan as part of the eastern south Pacific population of whales that feed off Colombian waters.
author	CAPELLA,JUAN J GIBBONS,JORGE FLÓREZ-GONZÁLEZ,LILIÁN LLANO,MARTHA VALLADARES,CARLOS SABAJ,VALERIA VILINA,YERKO A
author_facet	CAPELLA,JUAN J GIBBONS,JORGE FLÓREZ-GONZÁLEZ,LILIÁN LLANO,MARTHA VALLADARES,CARLOS SABAJ,VALERIA VILINA,YERKO A
author_sort	CAPELLA,JUAN J
title	Migratory round-trip of individually identified humpback whales at the Strait of Magellan: clues on transit times and phylopatry to destinations
title_short	Migratory round-trip of individually identified humpback whales at the Strait of Magellan: clues on transit times and phylopatry to destinations
title_full	Migratory round-trip of individually identified humpback whales at the Strait of Magellan: clues on transit times and phylopatry to destinations
title_fullStr	Migratory round-trip of individually identified humpback whales at the Strait of Magellan: clues on transit times and phylopatry to destinations
title_full_unstemmed	Migratory round-trip of individually identified humpback whales at the Strait of Magellan: clues on transit times and phylopatry to destinations
title_sort	migratory round-trip of individually identified humpback whales at the strait of magellan: clues on transit times and phylopatry to destinations
publisher	Sociedad de Biología de Chile
publishDate	2008
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2008000400008
work_keys_str_mv	AT capellajuanj migratoryroundtripofindividuallyidentifiedhumpbackwhalesatthestraitofmagellancluesontransittimesandphylopatrytodestinations AT gibbonsjorge migratoryroundtripofindividuallyidentifiedhumpbackwhalesatthestraitofmagellancluesontransittimesandphylopatrytodestinations AT florezgonzalezlilian migratoryroundtripofindividuallyidentifiedhumpbackwhalesatthestraitofmagellancluesontransittimesandphylopatrytodestinations AT llanomartha migratoryroundtripofindividuallyidentifiedhumpbackwhalesatthestraitofmagellancluesontransittimesandphylopatrytodestinations AT valladarescarlos migratoryroundtripofindividuallyidentifiedhumpbackwhalesatthestraitofmagellancluesontransittimesandphylopatrytodestinations AT sabajvaleria migratoryroundtripofindividuallyidentifiedhumpbackwhalesatthestraitofmagellancluesontransittimesandphylopatrytodestinations AT vilinayerkoa migratoryroundtripofindividuallyidentifiedhumpbackwhalesatthestraitofmagellancluesontransittimesandphylopatrytodestinations
_version_	1718439618885451776

Migratory round-trip of individually identified humpback whales at the Strait of Magellan: clues on transit times and phylopatry to destinations

Ejemplares similares