CHICAGO — Fish have lost half their average body mass and smaller species are making up a larger proportion of European fish stocks as a result of global warming, a study published Monday has found.
"It's huge," said study author Martin Daufresne of the Cemagref Public Agricultural and Environmental Research Institute in Lyon, France.
"Size is a fundamental characteristic that is linked to a number of biological functions, such as fecundity - the capacity to reproduce."
Smaller fish tend to produce fewer eggs. They also provide less sustenance for predators - including humans - which could have significant implications for the food chain and ecosystem.
Tuesday, July 21, 2009
Fish are shrinking in response to global warming
Posted by Skywatch Media at Tuesday, July 21, 2009 0 comments
Labels: Endangered Animals/Birds
Tuesday, July 14, 2009
Help call for vanishing honeybees
Posted by Skywatch Media at Tuesday, July 14, 2009 0 comments
Labels: Endangered Animals/Birds
Jumbo Squid Wash Ashore After Earthquake
Jumbo squid wash ashore after earthquake. Dozens of large creatures called Jumbo Humboldt Squid washed up on La Jolla Shores beach in Southern California Saturday, 7/11, after a 4.0 earthquake centered offshore shook homes in the area. Residents tried to toss them back into the water before seagulls pecked away. There has been no connection made between the quake and the beaching of squid, which were up to 4 feet long, so for now the whole thing's a mystery.
Posted by Skywatch Media at Tuesday, July 14, 2009 0 comments
Sunday, July 12, 2009
New York crops hit by Irish Famine disease
Meanwhile, New York shoppers and gardeners are being warned to destroy any affected plants because they could impact commercial farms. The fungus, Phytophthora infestans, is extremely dangerous because the spores are dispersed by the wind, potentially destroying nearby commercial crops. Once the spores arrive, there is no way to prevent the spread of the disease. Farmers are now praying for two weeks of dry weather as the disease spreads rapidly in damp cool weather. New York is the latest of several states to report late blight which is in nearly every East Coast state along with Ohio and Virginia. Late blight caused the deaths of more than 1 million people in Ireland in the 19th century because it totally destroyed the potato crop. More than 1.5 million Irish emigrated in the worst case of famine seen in Europe. "Ever since IrishCentral broke the story about the Famine blight appearing in the States, we have seen intense audience interest from survivalist sites and even from religious groups that are watching for signs of the Apocalypse. It's a story that has really touched a 'what if' nerve."
Posted by Skywatch Media at Sunday, July 12, 2009 0 comments
Labels: Disease Threat
Wednesday, July 8, 2009
Loss of coastal seagrass habitat accelerating globally
An international team of scientists warns that accelerating losses of seagrasses across the globe threaten the immediate health and long-term sustainability of coastal ecosystems. The team has compiled and analyzed the first comprehensive global assessment of seagrass observations and found that 58 percent of world's seagrass meadows are currently declining.
Posted by Skywatch Media at Wednesday, July 08, 2009 0 comments
Labels: environment
Heatwave prompts surge in massive basking sharks off British shores
The moon jellyfish has appeared in larger than usual numbers around the British and Irish coasts in the past few weeks, sometimes in blooms over 500 strong. The bigger barrel jellyfish, which can reach a metre in diameter and weigh up to 40kg, has also been seen in UNUSUALLY high numbers. A "superpod" of about 1,500 dolphins was seen last week off Pembrokeshire.
Posted by Skywatch Media at Wednesday, July 08, 2009 0 comments
Labels: Animal Behavior
Monday, July 6, 2009
Climate change is shrinking sheep
This strange phenomenon was first reported in 2007, but the reason for it remained under debate. "In the past, only the big, healthy sheep and large lambs that had piled on weight in their first summer could survive the harsh winters on Hirta." Because of climate change, grass for food is now available for more months of the year on the island. "Survival conditions are not so challenging - even the slower growing sheep have a chance of making it, and this means smaller individuals are becoming increasingly prevalent in the population." As for the future of the sheep, the team believes that they are still shrinking. "But it's too early to say if, in 100 years, we will have chihuahuas herding pocket-sized sheep."
Posted by Skywatch Media at Monday, July 06, 2009 0 comments
Labels: Climate Change
Wednesday, July 1, 2009
Rainforests More Fragile Than Estimated
The Amazon rainforest, one of the planet's most precious and besieged natural resources, is even more fragile than realized. If the planet warms even a moderate amount, a new study predicts that as much as 40 percent of it could be condemned to vanish by the end of the century.
A crippled Amazon could hasten global warming. If a significant portion of its trees die off, their vast stores of carbon would be emitted back into the atmosphere as greenhouse gases, pushing the climate further into dangerous levels of warming.
Posted by Skywatch Media at Wednesday, July 01, 2009 0 comments
Labels: environment













