Environment Forum

Brad Pitt, Matt Damon give krill a star turn

There are no small parts, only small actors, or so the old show-biz saying goes. Now there are big stars — Matt Damon and Brad Pitt — playing two of the smallest parts ever. In a far cry from “Ocean’s Eleven” (and 12 and 13) they’re lending their voices to a pair of krill, small shrimp-like creatures that form the base of the Antarctic food web.

Pitt and Damon play Will and Bill, the krill, in “Happy Feet Two,” the sequel to the 2006 dancing-penguins animated feature. Both films have conservation themes. The latest movie  opens  in mid-November.

These Hollywood names might help shine a spotlight on krill at a time when the species is under pressure, according to the Pew Environment Group. An international meeting under way now in Hobart, Tasmania, is expected to consider more protection for these tiny animals, which penguins, seals and whales depend on to survive.

Increasing demand for krill as feed for industrially farmed fish and for nutritional supplements has pushed the krill fishery beyond a sustainable level, the conservation group said in a statement. Krill fishing in some areas could outpace efforts to protect the well-known animals that rely on it.

“Existing efforts to regulate krill catch must be sustained and enforced, so that animals such as penguins and seals are not competing against industrial fishing vessels just to survive,” said Gerry Leape, a senior officer at the Pew group.

New fishing technologies enable fleets from multiple countries process krill continuously, bringing in much higher catches than a decade ago. An accelerating loss of sea ice that provides essential habitat for krill adds to the problem and threatens to deplete stocks in key feeding areas for penguins, seals and whales.

The Commission for the Conservation of Antarctic Marine Living Resources is meeting in Tasmania from October 24 through November 4, and the Pew Environment Group is asking delegates to the commission to require observers on all krill-fishing vessels, set up a dedicated fund to monitor krill predators, and maintain smaller divisions of the ocean to manage krill to prevent local depletion that will harm penguins and other animals.

BP, oil and seabirds — Baltic Sea ducks had worse luck

BP’s vast and spreading oil disaster is killing ever more birds and other wildlife in the Gulf of Mexico — but one of the worst spills for birds was a harmless-sounding 5 tonnes of oil in the Baltic Sea in 1976.

That spill from a ship killed more than 60,000 long-tailed ducks wintering in the area after they fatally mistook the slick for an attractive patch of calm water, according to Arne Jernelov, of the Institute for Futures Studies in Stockholm, writing in today’s edition of the journal Nature.

By contrast, he writes that fewer than 1,200 birds have  so far been recorded killed after the explosion of the Deepwater Horizon rig, which has led to a leak of a gigantic 250,000 to 400,000 tonnes of oil in the Gulf of Mexico.  About 60,000 birds were killed off Alaska in 1989 by the accident usually known as the Exxon Valdez spill (…Exxon’s website calls it The Valdez Oil Spill ), previously the biggest spill off the United States at 37,000 tonnes.

By my maths, the Baltic Sea spill killed one bird for about every 80 grams of oil (…an amount easily spilt when filling up a car), the BP spill (so far) one per 200-330 tonnes. Even tiny amounts of oil can mean that birds’ feathers stick together and let chill water, like in the Baltic Sea, get to their bodies through what is normally a layer of insulation. They can then die of cold.

Jernelov gets backing from the Global Marine Oil Pollution Information Gateway, linked to the U.N. Environment Programme.

“There is no clear relationship between the amount of oil in the marine environment and the likely impact on wildlife. A smaller spill at the wrong time/wrong season and in a sensitive environment may prove much more harmful than a larger spill at another time of the year in another or even the same environment. Even small spills can have very large effects,” it says.

“In a cold climate an oil spot the size of 2-3 square centimetres can be enough to kill a bird,” it says.

Penguin chatter heralds Antarctica’s ‘White Christmas’

Penguins’ chatter outside my tent woke me to Christmas Day in Antarctica, but instead of Santa’s sleigh there was just the usual run to ensure our human waste doesn’t permanently become part of this frozen wilderness.

With 24 hours of daylight it was, needless to say, very different from the traditional Christmas most of the ten members of the Mawson’s Huts Foundation living in East Antarctica are familiar with.

It was probably not the ‘White Christmas’. I would have imagined as a child growing up in Ireland and very different to the hot Australian festive season I have become used to, marked  by barbecues and often bushfires.

However, it was a fairly typical day for Antarctica, and for this icy plateau.

Here we are about 3,000 kilometres from the nearest part of the Australian mainland, working with a team who are trying to preserve the relics of the legendary 1911-1914 expedition of Antarctic pioneer Sir Douglas Mawson.

Mawson was lucky to survive that expedition, and basic though our living conditions may seem, they are a far cry from what he and his men endured.

On Christmas Eve we had smoked oysters on crackers washed down with a choice of red or white wine followed by lasagne. Some of us went out to the veranda and danced our way through 80s music to keep warm while watching penguins march in every direction under us and snow petrels glide in the sky above us.

On Antarctic safaris, remember to bring a microscope

Many people hope to come back from a wildlife safari with close-up pictures of lions or elephants – this picture below is my best attempt from a search for the largest land animals in Antarctica.

If you look hard you can see a reddish blob at the tip of the thumb — it’s Antarctica’s most aggressive land predator, an eight-legged mite known as Rhagidia.

Pete Convey, a biologist at the British Antarctic Survey (that’s his thumb), says that such tiny creatures evolved in Antarctica over tens of millions of years — they can freeze their bodies in winter in an extreme form of hibernation.

Penguins, seals and whales are the best known animals in Antarctica, but none live year-round on land, where the biggest creature is a flightless midge whose name is ”Belgica antarctica” and who’s about 0.5 cm long.

Global warming could mean problems for some of these tiny creatures if it keeps going — the Antarctic Peninsula where Pete showed us the creatures has warmed by about 3 Celsius (5.4 Fahrenheit) over the past 50 years, the fastest rate in the southern hemisphere.

Some other creatures might be able to survive in a warmer climate and threaten mites like Rhagidia.

Good news for South American penguins

Half a million Magellanic penguins are among the critters to get protection in a new coastal marine park just established by Argentina.

“It is the first protected area in Argentina specifically designed to safeguard not only onshore breeding colonies but also areas of ocean where wildlife feed at sea,” the Bronx-based Wildlife Conservation Society (WCS) said on Tuesday.

“Researchers found that the area was in need of protection from increasing pressures by commercial fishing and the oil industry,” said WCS, which helped set up the park. Named the Golfo San Jorge marine park, it became official earlier this month.

Only a fraction of the planet’s coastlines and marine areas are protected, so any move in this area is bound to be welcomed by conservationists.

According to conservation group WWF for example, only 0.6 percent of the world’s oceans have been designated as protected – compared to almost 13 percent of the planet’s land area.

The new reserve is in Golfo San Jorge in Chubut Province, some 1,056 miles (1,700 kilometers) south of Buenos Aires. WCS said it covers approximately 250 square miles (647 square kilometers) of coastal waters and nearby islands strung along almost 100 miles (160 kilometers) of shoreline.