By Mariella Moon •
October 26, 2009
Because of their enormous body size, whales have been thought to contribute a considerable amount of carbon dioxide to the total greenhouse gas build-up whenever they exhale. However, Trish J. Lavery of Flinders University in Adelaide, Australia claims they – the sperms whales of Southern Ocean, at least – are falsely-accused and that they live quite a carbon-neutral life.
During the October 13 Biennial Conference on the Biology of Marine Mammals in Quebec City, Canada, Lavery talked about earlier calculations overlooking the whales’ capacity to offset their carbon dioxide emissions. The 210,000 sperm whales in Southern Ocean should be declared carbon neutral, according to Lavery. The carbon neutral status is achieved by bringing iron from the depths of the ocean to the surface whenever they feed. This extra iron in the water induces plankton growth which in turn traps carbon and prevents it from being released into the atmosphere.
Scientists who study Cetacea (the group that includes whales, porpoises and dolphins) have long puzzled over how deep-diving whales (which are also air-breathing mammals like us) avoid this dangerous, decompression condition, that is, why don’t whales get the bends?
By Kay Sexton •
July 8, 2009
As more shipping—ranging from container vessels to oil tankers to cruise ships—is using Arctic waters, the risk of major oil spillages increases but the actual incidence of minor spills resulting from trimming vessels or flushing tanks is growing and remains largely unreported by shipping lines.
By Levi Novey •
April 23, 2009
South Korea is planning to permit whaling again off of the country’s shores if Japan’s request to “formally” whale is granted at this year’s meeting of the International Whaling Commission.
Japan has been whaling illegally for several years, despite the International Whaling Commission’s global ban on whaling since 1986. While South Korea has more or less adhered to the whaling ban, they now would like to do it again.
By Jake Richardson •
March 29, 2009
There are only about 325 North Atlantic right whales left in the world, and approximately 80 of them have assembled in the waters near Cape Cod.
They have come together to feed on an unusually huge population of zooplankton. The whales normally follow zooplankton from Canada as they are moved with ocean currents down to the Massachusetts coast. This year the extra numbers of zooplankton are attracting a record congregation of North Atlantic rights, which are one of the most endangered species in the world.
By Alex Felsinger •
March 10, 2009
Fishing nets often inadvertantly become entangled around whales, and while that is a crime under the Endangered Species Act, hardly anyone ever faces charges. But one unlucky fisherman has been caught in the act.
Robert J. Eldridge Jr. faces up to a year in prison and a $100,000 fine if convicted of three felony charges.
The district attorney says he “did knowingly and unlawfully take a marine mammal, to wit, a humpback whale in waters under the jurisdiction of the United States by acts of pursuit, torment, and annoyance which had the potential to injure said marine mammal in the wild.”
By Alex Felsinger •
March 4, 2009
Canadian wildlife conservation group the Lifeforce Foundation wrote letter to the Minister of Fisheries and Oceans to ask that Daisy the porpoise be released from the four-foot-deep wading pool that she has been held inside for the last six months.
The harbor porpoise was rescued in August after she washed up on a beach. Experts gave her only a 10 percent chance of survival, but she beat the odds and was given a clean bill of health three months ago. Now Lifeforce’s Peter Hamilton wants her freed.
By Michael Ricciardi •
January 26, 2009
World Species Survey details gloomy outlook for many animal species.In early October of 2008, the results of a global species survey, conducted by the International Union for the Conservation of Nature, were released. The numbers are startling:
- At least a quarter of mammal species are headed toward extinction in the near future.
- Nearly 80 percent of the primate species in southern and southeastern Asia are immediately threatened.
- At least 22 percent of reptile species are at risk of extinction.
- Perhaps 40 percent of North American freshwater fish are threatened.
- In Europe, 45 percent of the most common bird species are rapidly declining, and so are the most common bird species in North America.
But perhaps these figures are a bit too abstract. Here’s a more precise way to look at the present state of bio-diversity on Earth.
By Levi Novey •
January 2, 2009
2008 was a busy year for whale news, and it seems like 2009 will not be any different.
Australian and East Timorese researchers say that while conducting research, they “found” an amazing whale “hotspot” off of East Timor’s coast.
As quoted by Reuters, the principal scientist working on the study said the following: “In just one day, more than 1,000 individuals and possibly as many as 2,000 whales in eight separate pods — each one containing up to 400 mammals — were spotted over a 50-kilometre (31-mile) stretch of coast.”
Wow! Personally I think that this is a very exciting and cool discovery. The researchers also claim that the area is rich in other forms of ocean animals, like sharks and sea turtles. It highlights the need for greater protection of biodiverse ocean areas like these from unregulated fishing– a challenge given East Timor’s desire to develop their fishing industry.
As mentioned earlier, 2008 was a gigantic year for whale news. Here’s a roundup of some of the stories that were written about whales on EcoWorldly and on other sites in the Green Options network.
By Marika Collins •
January 1, 2009
Score one for the environment - at least temporarily. Shell Oil announced that it will not be drilling off the Alaskan coast in the Beaufort Sea in 2009 as planned. This decision comes after a November court ruling which determined that Shell had erroneously been given permission to drill without properly assessing the environmental impact drilling would have on the fragile region.
The Arctic, already vulnerable and suffering from the effects of Global Warming, has been spared this blow by the Ninth Circuit Court of Appeals following a formal objection by Pacific Environment. The organization, along with a coalition of conservation groups, formally challenged the granting of Shell’s permit with an aim towards blocking the oil giant from drilling in this fragile ecosystem.
