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Latest Planktology Stories

Scientists Have Questions Concerning Jellyfish Blooms
2012-02-02 06:01:43

Scientists are questioning whether jellyfish blooms are real or just perceived by media hype. The report, which appears in the journal BioScience, questions the validity of increased jellyfish populations being reported around the world. The report was issued by the Global Jellyfish Group, which is a consortium of around 30 experts on gelatinous organisms, climatology, oceanography, and socioeconomics from around the globe. Rob Condon, who led the study, says “Clearly, there are...

2012-01-25 04:22:41

Ultraviolet radiation is the catalyst for cellular damage in phytoplankton The Bren School-based authors of a study published Jan. 20 in the journal PLoS ONE have observed toxicity to marine organisms resulting from exposure to a nanoparticle that had not previously been shown to be toxic under similar conditions. Lead author and assistant research biologist Robert Miller and co-authors Arturo Keller and Hunter Lenihan — both Bren School professors and lead scientists at the UC...

2012-01-10 23:41:35

New process for producing biodiesel from microalgae oil The available amount of fossil fuels is limited and their combustion in vehicle motors increases atmospheric carbon dioxide levels. The generation of fuels from biomass as an alternative is on the rise. In the journal Angewandte Chemie, Johannes A. Lercher and his team at the Technische Universitaet Muenchen have now introduced a new catalytic process that allows the effective conversion of biopetroleum from microalgae into diesel...

2012-01-05 16:39:24

In 1997, scientists at the Center for Neurodynamics at the University of Missouri - St. Louis demonstrated that special sensors covering the elongated snout of paddlefish are electroreceptors that help the fish detect prey by responding to the weak voltage gradients that swimming zooplankton create in the surrounding water. Now some of the same researchers have found that the electroreceptors contain oscillators, which generate rhythmical firing of electrosensory neurons. The oscillators...

2011-12-10 08:00:00

The Inorganic and Organic Chemistry Sciences are two of the key sections in the Sciences Social Network Sciencia.org. The users of the website monitor 67 scientific journals publishing in these two disciplines which currently contain nearly 12,000 articles. (PRWEB) December 10, 2011 The Chemistry Sciences Social Network Sciencia.org was established to provide the very latest news headlines, references and resources from scientific journals, books and websites worldwide. This science and...

Image 1 - Run-off, Emissions Deliver Double Whammy To Coastal Marine Creatures
2011-10-25 03:07:28

Increasing acidification in coastal waters could compromise the ability of oysters and other marine creatures to form and keep their shells, according to a new study led by University of Georgia researchers. Their findings will be published in the November 2011 issue of Nature Geoscience. The researchers determined the combined effects of fertilizer runoff carried by the Mississippi River to the northern Gulf of Mexico and excess atmospheric carbon dioxide from burning fossil fuels result...

2011-10-14 09:15:53

The tiny phytoplankton Emiliania huxleyi, invisible to the naked eye, plays an outsized role in drawing carbon from the atmosphere and sequestering it deep in the seas. But this role may change as ocean water becomes warmer and more acidic, according to a San Francisco State University research team. In a study published this week in the journal Global Change Biology, SF State Assistant Professor of Biology Jonathon Stillman and colleagues show how climate-driven changes in nitrogen...

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2011-07-22 12:12:55

Sediments buried beneath the Black Sea contain ancient virus and host DNA A scientist analyzing ancient plankton DNA signatures in sediments of the Black Sea has found that the same genetic populations of a virus and its algal host can persist--and coexist--for centuries. The findings have implications for the ecological significance of viruses in shaping ecosystems in the ocean, and perhaps in fresh water. "The finding that the DNA of viruses and their algal hosts can be preserved in the...

2011-07-07 00:48:37

Just as corn and peanuts stunned the world decades ago with their then-newly discovered multi-beneficial uses and applications, Texas AgriLife Research scientists in Corpus Christi think microalgae holds even more promise. "It's a huge, untapped source of fuel, food, feed, pharmaceuticals and even pollution-busters," said Dr. Carlos Fernandez, a crop physiologist at the Texas AgriLife Research and Extension Center at Corpus Christi who is studying the physiological responses of microalgae to...

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2011-07-05 06:17:45

Zooplankton can use specialized adaptations that allow them to hide from predators in areas of the ocean where oxygen levels are so low almost nothing can survive - but they may run into trouble as these areas expand under climate change. "OMZs are very difficult places to survive," says PhD researcher Leanne Elder from the University of Rhode Island. "But we have discovered that Phronima sedentaria have adapted in two specialized ways. Firstly they suppress their metabolism, which is very...


Latest Planktology Reference Libraries

45_9dcdfc9da62991a8f200f2f82f8638d9
2014-01-12 00:00:00

A salp is a barrel-shaped, free-floating tunicate (any living organism which has a saclike body enclosed in a thick membrane or tunic with two openings or siphons for the ingress and egress of water). It moves by contracting which pumps water through its body. The salp strains the water with internal feeding filters as it goes through the body. It consumes phytoplankton that are strained from the water. Salps are common throughout equatorial, temperate, and colder seas. They are most often...

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2007-04-03 00:34:20

The South American pilchard, Sardinops sagax, is a sardine of the Family Clupeidae, the only member of the genus Sardinops, found in the indo-Pacific oceans. Their length is up to 15.75 in (40 cm). It has a number of other common names: Australian pilchard, Blue pilchard, Blue-bait, Californian pilchard, Chilean sardine, Japanese pilchard, Pacific sardine, and Southern African pilchard. The South American pilchard is a coastal species that forms large schools. Coloration is blue green on...

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Word of the Day
humgruffin
  • A terrible or repulsive person.
Regarding the etymology of 'humgruffin,' the OED says (rather unhelpfully) that it's a 'made-up word.' We might guess that 'hum' comes from 'humbug' or possibly 'hum' meaning 'a disagreeable smell,' while 'gruffin' could be a combination of 'gruff' and 'griffin.'