Migratory destinations of humpback whales from the magellan strait feeding ground, southeast pacific
PRESENCE OF THE LEOPARD SEAL, HYDRURGA LEPTONYX (DE BLAINVILLE, 1820), ON THE COAST OF CHILE: AN EXAMPLE OF THE ANTARCTICA - SOUTH AMERICA CONNECTION IN THE MARINE ENVIRONMENT
Sightings of 114 leopard seals, Hydrurga leptonyx , have been recorded along the Chilean coasts from 1944 to 2010. Mostly immature seals occurred in northern and central Chile (18°30Â´S-39°59Â´S),…
Cetacean distribution in relation to environmental parameters between Drake Passage and northern Antarctic Peninsula
This study explored the use of generalized additive models (GAMs) to model the relationships of some cetacean species according to sea surface temperature (SST) and a suite of physiographic variables adjacent to the Antarctic Peninsula and DP during the austral summer, suggesting that SST and distances from oceanographic boundaries were the most significant parameters related to the presence/absence of cetACEans.
Migrations of individually identified humpback whales between the Antarctic Peninsula and South America
Considerable uncertainty exists regarding the migratory destinations of humpback whales (Megaptera novaeangliae) from the Antarctic Peninsula region and the breeding grounds off the coasts of South…
Population structure and possible migratory links of common minke whales, Balaenoptera acutorostrata, in the Southern Hemisphere
- L. Pastene, J. Acevedo, M. Goto, A. Zerbini, Paola Acuña, A. Aguayo‐Lobo
- Environmental Science, BiologyConservation Genetics
- 1 June 2010
The genetic evidence presented here was consistent with the hypothesis of migratory links among Brazil, Chilean Patagonia and the Antarctic Peninsula, and between low-latitude and Antarctic waters of the WSP, which may have conservation as well as taxonomic implications.
Evidence of spatial structuring of eastern South Pacific humpback whale feeding grounds
The apparent absence of movements of identified humpbacks among the 3 summering areas, and the differences in the proportion of white/black coloration on the fluke, suggest that each locality corresponds to a discrete feeding area for eastern South Pacific humpback whales.
Temporal stability and mixed-stock analyses of humpback whales (Megaptera novaeangliae) in the nearshore waters of the Western Antarctic Peninsula
The Western Antarctic Peninsula (WAP) is of particular interest, where rapidly changing environmental conditions could alter prey distribution or migration pathways, and mitochondrial DNA and 15 microsatellite loci were used to examine changes in the population of whales around the region.
Rare piebald and partially leucistic Antarctic fur seals, Arctocephalus gazella, at Cape Shirreff, Livingston Island, Antarctica
We document five cases of unusual colouration in Antarctic fur seals, Arctocephalus gazella, at Cape Shirreff, Livingston Island, from 1991–1992 to 2005–2006 austral summer seasons. This is the first…
Sex-related site fidelity of humpback whales (Megaptera novaeangliae) to the Fueguian Archipelago feeding area, Chile
We investigated sex-related site fidelity by humpback whales to the Fueguian Archipelago, a new feeding area in the eastern South Pacific, by examining the resighting histories of 45 males and 39…
Trans-oceanic population genetic structure of humpback whales in the north and south pacific
The results raise concerns about the effects of climate change on the phylogeographic structure and thereby the evolution and long-term conservation of this species.