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Everything posted by Achilles Tang
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For the very first time in New York coastal waters, the voices of singing blue whales have been positively identified. Acoustic experts confirmed that the voice of a singing blue whale was tracked about 70 miles off of Long Island and New York City on Jan. 10-11, 2009, as the whale swam slowly from east to west. At the same time, a second blue whale was heard singing offshore in the far distance. View the full article
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Why Coral Reefs Around The World Are Collapsing
Achilles Tang posted a topic in General Reefkeeping_
An explosion of knowledge has been made in the last few years about the basic biology of corals, researchers say in a new report, helping to explain why coral reefs around the world are collapsing and what it will take for them to survive a gauntlet of climate change and ocean acidification. View the full article -
Researchers have succeeded for the first time in measuring the physiology of marine phytoplankton through satellite measurements of its fluorescence -- an accomplishment that had been elusive for years. With this new tool, scientists will now be able to gain a reasonably accurate picture of the ocean's health and productivity about every week, all over the planet. View the full article
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The Atlantic cod has, for many centuries, sustained major fisheries on both sides of the Atlantic. However, the North American fisheries have now largely collapsed. A new article provides insights into possible mechanisms of the collapse of fisheries, due to fisheries-induced evolution. View the full article
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Researchers have confirmed the existence of a major new coral reef province on the southern end of the Porcupine Bank off the west coast of Ireland. The province covers an area of some 200 square kilometers and contains in the order of 40 coral reef covered carbonate mounds. These underwater hills rise as high as 100 meters above the seafloor. View the full article
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Using such diverse sources as old ship logs, literary texts, tax accounts, newly translated legal documents and even mounted trophies, researchers are piecing together images -- some flickering, others in high definition -- of fish of such sizes, abundance and distribution in ages past that they stagger modern imaginations. They are also documenting the timelines over which those giant marine life populations declined. View the full article
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With their sweet, refreshing juices and succulent interior, watermelons are a favorite summertime treat, especially around July 4th. But now this Independence Day favorite could become even more of a patriotic commodity. The simple sugars in watermelon juice can be made into ethanol. View the full article
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When evolution has lucked into efficient solutions for life's most fundamental problems, it adopts them as invaluable family heirlooms, passing them down as one species evolves into another. So it was reasonable to expect that a key regulator of embryonic development -- a strand of RNA that shepherds stem cells through the process of differentiation -- might play the same role in all vertebrates, from fish to people. New research, however, has shown that when it comes to microRNAs, what works for one animal may not work the same way in another. View the full article
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It is the concentration of a few signaling molecules that determines the fate of individual cells during the early development of organisms. Molecular biologists report that a variety of molecular mechanisms accounts for the interpretation of the concentration of the signaling molecule Hedgehog. View the full article
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The Anisakis spp parasite can still be found in one of the most emblematic Mediterranean dishes ? anchovies in vinegar. Spanish researchers have shown the parasites are present at higher levels in anchovies from the south east Atlantic coast and the north eastern Mediterranean, and urge consumers to freeze or cook the fish before eating it. View the full article
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A new report on the Northwestern Hawaiian Islands provides the sharpest picture yet of the region's marine life and ecosystems. The report examines the geographic distribution of the island chain's marine life and habitats, and the conditions that determine where they are found. View the full article
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Biologists Call For Network Of Protected Rivers
Achilles Tang posted a topic in General Reefkeeping_
Scientists have used the Guadiana River basin, in which 92% of the species are under threat, as a reference point to measure the loss of aquatic biodiversity and its conservation value. A new study reveals that the state of fragmentation of Iberian river basins is ?seriously endangering? the freshwater fish that inhabit them, and highlights the need to create new protected aquatic reserves. View the full article -
Experts say that more than half of the world's coral reefs could disappear in the next 50 years, in large part because of higher ocean temperatures caused by climate change. But now scientists have found evidence that some coral reefs are adapting and may actually survive global warming. View the full article
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Hmmm.... well... throw them out. Maybe they got into the water somehow accidentally.
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Are they alive? how do they move? do they look terrestrial or aquatic?