Achilles Tang
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Posts posted by Achilles Tang
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Scientists in Pennsylvania report that boosting production of crops used to make biofuels could make a difficult task to shrink a vast, oxygen-depleted "dead zone" in the Gulf of Mexico more difficult.
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In addition to global warming, carbon dioxide emissions cause another, less well-known but equally serious and worrying phenomenon: ocean acidification. Researchers have just demonstrated that key marine organisms, such as deep-water corals and pteropods (shelled pelagic mollusks) will be profoundly affected by this phenomenon during the years to come.
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Gary Lindner and Russ Kikel at AmericanReef.com this month bring you another podcast, this one concluding their two part series on sexual and asexual coral reproduction.
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We recommend only doing this with specimens known to be in good health, and that they should be kept at approximately room temperature for the duration of travel.
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Employment opportunities for graduates include work in aquaculture enterprises, research facilities, fish hatcheries, aquarium science publication, government natural resource agencies, public zoos and aquariums, and retailing, wholesaling, or self-employment in the ornamental fish industry.
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One of the things that I am personally discovering about my rebirth into the world of aquatic plants is that there many skills of reefkeeping which are helping me to be a better aquatic gardener and likewise, there are many lessons that freshwater planted tanks can teach us as reefers.
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Terry discusses common types of filtration found in reef tanks.
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This article discusses conservation methods designed to protect species, not necessarily ecosystems.
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Terry discusses his continued efforts with his freshwater planted aquarium.
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Intersex in smallmouth and largemouth basses is widespread in numerous river basins throughout the United States is the major finding of the most comprehensive and large-scale evaluation of the condition, according to new research.
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A new article shows that DNA barcodes can quickly and accurately determine the species identity of specimens collected from of all seven endangered sea turtles.
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For many of the types of fish we buy in stores or order in restaurants, the chance that an individual dies from fishing is several times higher than dying of natural causes. This may seem obvious to most (they had to get to our table somehow), but what may not be apparent is that the relentless pursuit of consumer-friendly fish product is having a massive impact on fish populations around the world. By repeatedly choosing only the biggest fish, or only those found in certain habitats, the fisheries industry may be permanently altering the genetic composition of fish populations.
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Scientists have found a rare species of algae that is tolerant of stressful environmental conditions and that proliferated in Caribbean corals when the corals' more-sensitive algae were being expelled during the sea-temperature warming of 2005. The research is one of the first times that anyone has had the opportunity to conduct a community-wide study of corals and algae before, during and after a bleaching event.
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Like the robotic rovers Spirit and Opportunity, which wheeled tirelessly across the dusty surface of Mars, a new robot spent most of July traveling across the muddy ocean bottom, about 40 kilometers (25 miles) off the California coast. This robot, the Benthic Rover, has been providing scientists with an entirely new view of life on the deep seafloor. It will also give scientists a way to document the effects of climate change on the deep sea.
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Analysis of a rock type found only in the world's oldest oceans has shed new light on how large animals first got a foothold on Earth.
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Scientists have found the mechanism that controls the number of salmonids found each year in Cantabrian rivers. Their method has been to monitor population numbers in relation to river flow in March, when the juvenile fish emerge. They have concluded that environmental conditions change each year and that modified river flow, positively or negatively affects survival rates. This information throws light on a long debate within ecological theory about the mechanisms that regulate the size of animal populations.
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Aquaculture, once a fledgling industry, now accounts for 50 percent of the fish consumed globally, according to a new report by an international team of researchers. And while the industry is more efficient than ever, it is also putting a significant strain on marine resources by consuming large amounts of feed made from wild fish harvested from the sea, the authors conclude.
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What happens when traits no longer give creatures a competitive edge? In a recent review, researchers teamed up to take a closer look at the evolutionary fate of useless traits.
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Scientists have suspected that spare parts in the genome -- extra copies of functional genes that arise when genes or whole genomes get duplicated -- might sometimes provide the raw materials for the evolution of new traits. Now, researchers report that they have discovered a prime example of this in fish.
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The world?s fastest ambush has been caught on film. Behind the attack is a copepod which must be ?faster than its shadow? to capture its prey in water thicker than syrup.
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What do abrupt changes in ocean circulation and Earth's climate, shifts in wildlife populations and ecosystems, the global finance market and its system-wide crashes, and asthma attacks and epileptic seizures have in common? According to new research, all share generic early-warning signals that indicate a critical threshold of change dead ahead.
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After more than a decade of inquiry, a team of scientists has turned the tables on a long-standing controversy to re-establish an old truth about nitrogen mixing in the oceans.
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Two related research expeditions by NOAA scientists to track the habitat preferences and movements of fish at Gray's Reef National Marine Sanctuary may help managers protect overfished species such as red snapper and grouper.
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Historical records show that rivers worldwide once held many more fish and other fauna than they do today. Overharvesting seems to have been one principle cause of steep declines in recent centuries. Although it is hard to estimate historical numbers of freshwater wildlife with accuracy, efforts to determine earlier levels of abundance may help planners avoid using falsely low estimates as baseline assumptions. Restoration programs could investigate the effects of reintroducing extirpated species.
Study Of Isolated Snakes Could Help Shed Light On Venom Composition
in General Reefkeeping_
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While developing a more efficient, safer way to extract venom, researchers noticed the venom delivered by an isolated population of Florida cottonmouth snakes may be changing in response to their diet.
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