Mekong dolphins on the brink of extinction

According to a recent report by WWF, pollution in the Mekong River has driven the local population of Irrawaddy dolphins to the brink of extinction.

The Mekong River Irrawaddy dolphin (Orcaella brevirostris) population inhabits a 190km stretch of the Mekong River between Cambodia and Lao PDR. Since 2003, the population has suffered 88 deaths of which over 60 percent were calves under two weeks old. The latest population is estimated between 64 and 76 members.

“Necropsy analysis identified a bacterial disease as the cause of the calf deaths. This disease would not be fatal unless the dolphin’s immune systems were suppressed, as they were in these cases, by environmental contaminants,” said Dr Verné Dove, report author and veterinarian with WWF Cambodia.

Researchers found toxic levels of pesticides such as DDT and environmental contaminants such as PCBs during analysis of the dead dolphin calves. These pollutants may also pose a health risk to human populations living along the Mekong that consume the same fish and water as the dolphins.

“These pollutants are widely distributed in the environment and so the source of this pollution may involve several countries through which the Mekong River flows. WWF Cambodia is currently investigating the source of the environmental contaminants,” said Dr Dove.

High levels of mercury were also found in some of the dead dolphins. Mercury, suspected to be from gold mining activities, directly affects the immune system making the animals more susceptible to infectious disease.

“A trans-boundary preventative health programme is urgently needed to manage the disease affected animals in order to reduce the number of deaths each year,” said Seng Teak, Country Director of WWF Cambodia.

Limited genetic diversity due to inbreeding was another factor in the dolphin deaths.

“The Mekong River dolphins are isolated from other members of their species and they need our help. Science has shown that if the habitat of cetaceans is protected then populations can show remarkable resilience,” said Mr Teak.

The Mekong River Irrawaddy dolphin has been listed as critically endangered on the IUCN Red List of Threatened Species since 2004.

In the meantime, I invite you to watch a rare footage of a few remaining Irrawaddy dolphins...



Links:
Mekong dolphins on the brink of extinction, WWF

Irrawaddy dolphin in the Mekong, WWF

Cambodian Mekong Dolphin Conservation Strategy, WWF

Closed Zone, Gaza 2009

The director of animation for "Waltz with Bashir", Yoni Goodman, created this animted film for the Human Rights NGO "Gisha - Legal Center for Freedom of Movement". While animation may seem an unusual medium for a human rights organization, the intention was to draw attention to the ongoing closure of the Gaza Strip and empathy for the 1.5 million human beings feeling its impact most acutely through the depiction of one individual chasing a dream and finding himself without recourse.

In the accompanying text, it says: "Despite declarations that it has "disengaged" from the Gaza Strip, Israel maintains control of the Strip’s overland border crossings, territorial waters, and air space. This includes substantial, albeit indirect, control of the Rafah Crossing.

During the past 18 months, Israel tightened its closure of Gaza, almost completely restricting the passage of goods and people both to and from the Strip.

These policies punish innocent civilians with the goal of exerting pressure on the Hamas government, violating the rights of 1.5 million people who seek only to live ordinary lives – to be reunited with family, to pursue higher education, to receive quality medical treatment, and to earn a living.

The effects of the closure were particularly harsh during the military operation of Dec. 2008 - Jan. 2009. For three weeks, Gaza residents had nowhere to flee to escape the bombing.

Gisha - Legal Center for Freedom of Movement calls on the State of Israel to fully open Gaza's crossings and to allow the real victims of the closure - 1.5 million human beings - the freedom of movement necessary to realize their dreams and aspirations."

Links:
Gisha - Legal Center for Freedom of Movement
Closed Zone