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First direct evidence of substantial fish consumption by early modern humans in China
Written on 7 Jul, 2009 at 12:20 in Featured, From the past | viewed 770 views times and users have made 0 comments so far
Freshwater fish are an important part of the diet of many peoples around the world, but it has been unclear when fish became an important part of the year-round diet for early humans. A new study by an international team of researchers, including Erik Trinkaus, Ph.D., professor of anthropology in Arts & Sciences at Washington University in St. Louis, shows it may have happened in China as far back as 40,000 years ago. Analysis of a bone from one of the earliest modern human in Asia, the 40,000-year-old skeleton from Tianyuan Cave near Beijing, has shown that at least this individual was a regular fish consumer. Full Story : Physorg.com….
Jellyfish threaten to ‘dominate’ oceans
Written on 9 Jun, 2009 at 6:13 in Featured, Really? | viewed 207 views times and users have made 0 comments so far
Giant jellyfish are taking over parts of the world’s oceans due to overfishing and other human activities, researchers say. Dr Anthony Richardson and his colleagues from CSIRO Marine and Atmospheric Research says jellyfish numbers are increasing, particularly in South East Asia, the Black Sea, the Gulf of Mexico and the North Sea. Jellyfish are normally kept in check by fish, which eat small jellyfish and compete for jellyfish food such as zooplankton, he says. But with overfishing, jellyfish numbers are increasing. Jellyfish feed on fish eggs and larvae, further impacting on fish number. Full Story : Abc.net.au…..
Atlantic Bluefin Tuna Will Be Gone in 3 Years At Current Fishing Rates
Written on 13 May, 2009 at 1:55 in Featured, Nature | viewed 251 views times and users have made 0 comments so far
At current rates of catch, driving up by increasing demand from Japan for use in sushi, Atlantic bluefin tuna stocks will be gone within 3 years. On the eve of the two-month Mediterranean fishing season opening, WWF is saying that unless catches are dramatically reduced (as in a complete halt to fishing in May and June), spawning bluefin tuna will entirely disappear by 2012. Full Story : TreeHugger.com…..
Robot Fish Detects Contamination in the Sea in Northern Spain
Written on 26 Mar, 2009 at 9:48 in Featured, Technology | viewed 345 views times and users have made 0 comments so far
British scientists have developed a 1,5 meter long robot fish that will swim around the Spanish north coast to detect contamination in the water. The robot fish can swim at a speed of roughly 1 meter per second. Chemical sensors help find potential dangerous contaminants such as leakage from boats or underwater pipelines. Once found traces of pollutants, the robot fish send the information on by Wi-Fi. Full Story : Treehugger.com……
Non-Native Lionfish Move to Florida Keys, Eat Everything, Won’t Go Home
Written on 7 Feb, 2009 at 18:40 in @ a glance | viewed 212 views times and users have made 0 comments so far
Lionfish are non-native to the Atlantic, but since 1992, they’ve quickly been making themselves at home to the despair of native fish, ecosystems, and divers. Now they’ve reached the Florida Keys, completing a circle that could lead to a major ecological disaster. Full Story : Treehugger………
Fish’s Ears
Written on 9 Jul, 2008 at 10:50 in Nature, Science | viewed 185 views times and users have made 1 comment so far
Although we don’t see ears of fishes, they do have ear parts inside their heads. According to the National Wildlife Federation, fishes can pick up sounds in the water through their bodies and in the ear.
They also can sense movement in the water with the lateral lines. Interestingly, sharks have the ability to sense electricity, and genes that contribute to this sense is responsible for the head and facial features in humans. Therefore sharks and humans come down to a common ancestor back in time. Our ears evolved from fish gills.
Training Fish to Jump Into Nets
Written on 1 Apr, 2008 at 11:49 in Science | viewed 133 views times and users have made 0 comments so far
Researchers at Marine Biological Laboratory at Wood’s Hole are working on a plan to train fish to catch themselves by swimming into a net when they hear a tone that signals feeding time. If the plan becomes successful it will be beneficial for fish farms. Farms could save money by letting fish to feed in the open ocean for several days and call them back.