Sunday, November 15, 2009

A Star is Born!

Enlarged breach

Southern resident killer whale Star/J46 was born to 16 year old Polaris/J28 on November 11th. Five babies have been born to this population this year L112, L113, J45, J44, and J46 with zero losses, good news for this Endangered species of now 87 members. Gestation takes 17 months and calves are often born in the fall and winter due to a spring and summer mating season. A firstborn calf can be stillborn due to the toxic offload of PCBs and fire retardants from their mothers, succinct offspring have a better chance at survival. Polaris' mother J17 has the newborn J45 and will assist in the raising of Star.

Polaris J28 female b.1977

5 calves

Monday, November 02, 2009

New killer whale photo-ID catalog

It is the first photo-identification catalog of tropical pelagic killer whales. 195 individual killer were identified in the eastern tropical Pacific between 1986 and 2006. The catalog yields information on the geographic movement and external morphology of this little known population of killer whales.

Catalog Link