From the SanJuanJournal:
Six orcas have apparently disappeared from the Southern Resident orca pods this year, dropping the population to 83, the lowest since 2003. The Center for Whale Research and others are blaming marine pollution, depleted salmon runs, and acoustic impacts from dredging, seismic testing and military sonar for the decline in the population. The Southern Resident orcas are listed as endangered in Canada and the U.S.Three Southern Resident orcas didn't show up with their pods at the beginning of the season — K7, believed to be 98 years old and the oldest of all the orcas; J43, a calf born late last fall; and L101, a juvenile male that had been photographed in Monterey, Calif. Jan. 27.
By Sept. 30, when the Center for Whale Research concluded its annual survey of the Southern Resident population, three more were missing: L67, the 30-something mother of L101; J11, a female born in the early 1970s; and L21, a female born in 1950.More. . .L67 appeared to be malnourished the last time center staff members saw her; she had "peanut head," a term for a depressed area behind the blowhole that normally stores fat.
In addition, L111, a calf born in August to L47, is believed to have died. (Calves are not included in the population count until they survive a year). All told, L47's last four calves have died, according to Ken Balcomb, executive director of the center.Labels: Orca Population, orca whales, Southern Resident Killer Whales
