Member Highlight: As Nelson Touts Red Tide Research At Mote, Another Potential Bloom Is Detected

2018-09-10T10:27:46+00:00 September 10, 2018|

(Credit: University of South Florida) Autonomous USF robot discovered red tide indicators west of Tampa during mapping exercise. (From Herald Tribune/ By Carlos R. Munoz) -- A new batch of red tide could be brewing west of Tampa. A University of South Florida underwater glider, an autonomous robot that collects subsurface data vital to understanding [...]

Algal Blooms Harmful To Health, Economy, And Summer Fun

2018-09-04T12:52:07+00:00 September 4, 2018|

(Credit: Bob Hogensen, Martin County, Florida) From: Ocean News Weekly/ By: Ocean Leadership Staff  What It Was Senate Commerce, Science and Transportation Subcommittee on Oceans, Atmosphere, Fisheries and Coast Guard hearing titled, “Harmful Algal Blooms: The Impact on Our Nation's Waters.” Why It Matters Several areas of the U.S., including the Great [...]

Member Highlight: Scientists Explore New Experimental Model Systems To Advance Biology

2018-07-23T12:30:28+00:00 July 23, 2018|

(Credit: Mariana Rius) Tremendous advancement of basic biological knowledge has come from genetically manipulating model organisms to test mechanistic hypotheses. (From Phys.org) --  But the selection of traditional model organisms available offers a limited view of biological diversity, meaning that they cannot be used to investigate a broad swath of novel and [...]

Research Aims To Predict Algae Blooms On Lakes, Rivers

2018-01-19T17:09:45+00:00 January 19, 2018|

(Credit: AP Photo/ John Minchillo) There's a whole network of satellites, underwater robots and scientific tools watching for toxic algae on Lake Erie. But when it comes to predicting where and when harmful blooms will show up on the Ohio's rivers and reservoirs, there's still a lot of mystery. (From US News/ By [...]

VIMS Uses Drones To Find, Study Algal Blooms

2017-09-07T17:09:22+00:00 September 7, 2017|

One day in late July, Donglai Gong was piloting his little quadcopter above his house when he noticed his drone camera picking up something odd in the York River below. “There were features, like, streaks of darkness,” Gong recalled Wednesday at the Virginia Institute of Marine Science in Gloucester Point. Gong is an assistant professor studying the physics of coastal and polar oceanography. “And, being a physicist, I had no idea what biological processes could be causing that. So I took some pictures. They looked pretty.”He emailed those pictures to VIMS colleagues, many of whom were biologists who knew exactly what was going on: a harmful algal bloom, or HAB.

How Rising Ocean Acidity Could Send Us Into A Downward Spiral

2016-12-16T08:41:49+00:00 December 16, 2016|

(Click to enlarge) A plankton bloom in the Bay of Biscay. (Credit: NASA) Our oceans are getting more acidic, and it’s having big effects on some very small animals—with worrying implications. (From Forbes / by Sam Lemonick)– Ocean acidification, a result of excess carbon dioxide in our atmosphere, can disrupt plankton blooms, according to new [...]

Toxic ‘Marine Snow’ Can Sink Quickly, Persist At Ocean Depths

2016-12-19T17:05:39+00:00 December 6, 2016|

In a new study, researchers from North Carolina State University found that a specific neurotoxin can persist and accumulate in "marine snow" formed by the algae Pseudo-nitzschia, and that this marine snow can reach significant depths quickly. These findings have implications for food safety policies in areas affected by toxic marine algal blooms.

Reef Degradation On Maui Linked To Quality Of Coastal Groundwater

2016-11-21T10:38:48+00:00 November 21, 2016|

Land-use practices on tropical oceanic islands can have large impacts on reef ecosystems, even in the absence of rivers and streams. Land-based pollutants, such as fertilizers and chemicals in wastewater, infiltrate into the groundwaters beneath land and eventually exit into nearshore ecosystems as submarine groundwater discharge (SGD) -- seeping into the coastal zone beneath the ocean's surface. In a study published recently in PLOS ONE, University of Hawai'i at Mānoa (UHM) scientists used a combination of field experiments and chemical analysis of water and algae to show that the quality of coastal groundwater plays a major role in determining the health of nearshore ecosystems in Hawai'i.

Arctic Found To Play Unexpectedly Large Role In Removing Nitrogen

2016-10-28T11:40:54+00:00 October 28, 2016|

Areas of the Arctic play a larger role than previously thought in the global nitrogen cycle -- the process responsible for keeping a critical element necessary for life flowing between the atmosphere, the land and oceans. The finding is reported in a new study of the continental shelf in the Arctic Ocean published in the journal Nature Communications.

Testing Detects Algal Toxins in Alaska Marine Mammals

2016-06-28T19:24:23+00:00 March 11, 2016|

Toxins from harmful algae are present in Alaskan marine food webs in high enough concentrations to be detected in marine mammals such as whales, walruses, sea lions, seals, porpoises and sea otters, according to new research from NOAA and its federal, state, local and academic partners.

Ocean Current In Gulf Of Mexico Linked To Red Tide

2016-01-21T12:01:30+00:00 January 21, 2016|

(Click to enlarge) Florida red tide is a harmful algal bloom produced by the dinoflagellate Karenia brevis that causes respiratory impairment in humans and marine life, and is responsible for shellfish poisoning. (Credit: Wikimedia Commons) A new study found that a major ocean current in the Gulf of Mexico plays an important role in [...]

How Red Tide Knocks Out Its Competition

2014-06-05T15:46:54+00:00 June 5, 2014|

New research reveals how the algae behind red tide thoroughly disables -- but doesn't kill -- other species of algae. The study shows how chemical signaling between algae can trigger big changes in the marine ecosystem.

An Algal Bloom for the Record Books

2016-06-28T19:38:57+00:00 April 2, 2013|

Algal blooms are nothing new in Lake Erie. Like many others, the lake—the 13th largest in the world, with an area of 25,655 square kilometers—suffered regular bouts of sudden algal growth during the 1960s and 1970s from phosphorous in detergents and agricultural runoff.

Land-Ocean Connections: How Tree Trunks, Leaves and Kukui Nuts Indirectly Feed Bottom Fish in Submarine Canyons Off Moloka’i, Hawaii

2016-06-29T10:10:16+00:00 March 1, 2012|

Scientists from the School of Ocean and Earth Science and Technology (SOEST) at the University of Hawaii -- Manoa (UHM) and colleagues recently discovered that land-based plant material and coastal macroalgae indirectly support the increased abundances of bottom fish in submarine canyons, like those off the north shore of Moloka'i.

Lake Erie Algae and Ice Make a Nice Mix in Winter

2016-06-29T10:10:36+00:00 January 11, 2012|

Clarkson University Biology Professor Michael R. Twiss has been working with colleagues and students from Ohio, Pennsylvania, and Ontario, to study Lake Erie over the past five winters during mid-winter, a time when the lake is more than 70 percent covered by ice.

Algal Antifreeze Makes Inroads Into Ice

2016-06-29T10:24:06+00:00 March 11, 2011|

Sea-ice algae – the important first rung of the food web each spring in places like the Arctic Ocean – can engineer ice to its advantage, according to the first published findings about this ability.

Scientists Use “ESP” to Track Harmful Algae

2016-06-29T10:43:32+00:00 November 30, 2010|

Researchers in biologist Don Anderson’s lab are celebrating a new arrival—a gleaming, 3-foot-high robotic instrument that promises to revolutionize how scientists detect and study the ocean’s tiny but troublesome inhabitants: harmful algae.

Oceanography Researchers Discover Toxic Algae in Open Water

2016-06-29T10:43:40+00:00 November 12, 2010|

Louisiana State University's Sibel Bargu, along with her former graduate student Ana Garcia, from the Department of Oceanography and Coastal Sciences in LSU's School of the Coast & Environment, has discovered toxic algae in vast, remote regions of the open ocean for the first time.

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