Baca determined the relationships of 53 species of Noteridae representing all subfamilies, tribes and 16 of 17 genera within the family. By sequencing and comparing DNA sequences, the team’s work has led to a “comprehensive phylogenetic reconstruction” of the evolutionary history of the aquatic beetles.
Carbonate, bicarbonate, and carbonic acid emerge when atmospheric carbon dioxide dissolves in the oceans, which is the largest sink for this greenhouse gas. Researchers are interested in better understanding the carbonate system to potentially help facilitate carbon sequestration schemes, to help mitigate climate change. Recently, researchers made breakthrough discoveries about the carbonate species’ behavior at saltwater surfaces, like that of the ocean. They report their findings this week in The Journal of Chemical Physics.
XPRIZE officials say Rhyner is among the leaders in underwater exploration.
Iron particles generated by cities and industry are being dissolved by man-made air pollution and washed into the sea – potentially increasing the amount of greenhouse gases that the world’s oceans can absorb, a new study suggests.
Research by the University of Southampton has found that methods used to predict the effect of species extinction on ecosystems could be producing inaccurate results. This is because current thinking assumes that when a species vanishes, its role within an environment is lost too. However, scientists working on a new study have found that when a species, (for example a group of sea creatures), is wiped out by a catastrophic event, other species can change their behaviour to compensate, exploiting the vacant role left behind.
Sticky molecules hop aboard oily floaters and may influence the amount of sunlight reflected by marine clouds.
The True´s beaked whale is a deep-diving mammal so rarely seen that it often defies recognition at sea by researchers. Scientists have now obtained the first images of a calf along with the first underwater video of these whales – helping to reveal the secrets of this species.
WCS (Wildlife Conservation Society) applauds the National Oceanic and Atmospheric Administration (NOAA) for its recent decision to add the Hudson Canyon—the East Coast’s largest submarine canyon—to the inventory of sites now under consideration for National Marine Sanctuary status.
Organic additives found in road salt alternatives — such as those used in the commercial products GeoMelt and Magic Salt — act as a fertilizer to aquatic ecosystems, promoting the growth of algae and organisms that eat algae, according to new research published today in the Journal of Applied Ecology. Low levels of magnesium chloride — an alternative type of salt found in the commercial product Clear Lane – boost populations of amphipods, tiny crustaceans that feed on algae and serve as an important food source for fish.
A new report says St-Barthélemy’s environment may be rapidly degrading, with major impacts stemming from land-based pollution, urbanization, and overfishing.
In the Journal of Experimental Marine Biology and Ecology, Jeroen Ingels, a researcher at the FSU Coastal and Marine Laboratory, explains that small organisms called meiofauna that live in the sediment provide essential services to human life such as food production and nutrient cycling.
An international research team found a rapid rise in acidification in the western Arctic Ocean, a potential threat to shellfish, the marine ecosystem and the fishing industry. Since the 1990s, acidified waters have expanded north about 300 nautical miles from Alaska to just below the North Pole.
As humans build roads, construct buildings and develop land for agriculture, freshwater ecosystems respond ― but not always in the ways one might expect.
The health of fish and aquatic insects could be significantly affected by withdrawals of fresh water from the rivers and streams across North Carolina according to a new scientific assessment.
Professor is studying how a variety of marine organisms are responding to changes in their environment. Focusing on reef-building corals and other shelled creatures that are threatened by increasing temperatures and ocean acidification, she is testing them to determine how species may acclimatize to the new circumstances.
A tiny snail may offer an alternative to opioids for pain relief. Scientists at the University of Utah have found a compound that blocks pain by targeting a pathway not associated with opioids. Research in rodents indicates that the benefits continue long after the compound have cleared the body.
Rising temperatures could accelerate climate change by reducing the amount of carbon dioxide stored in ponds and increasing the methane they release, new research shows.
Genomic study in lower Congo reveals microscale diversification.
Seagrass meadows – bountiful underwater gardens that nestle close to shore and are the most common coastal ecosystem on Earth – can reduce bacterial exposure for corals, other sea creatures and humans.
Scientists at the University of Washington have discovered that macrophages, a common type of cell in the vertebrate immune system, can transmit messages between non-immune cells. Their paper, published online Feb. 16 in the journal Science, is the first reported instance of macrophages relaying messages over a long distance between non-immune cells.
Scientists and government officials met at the United Nations today to consider possible solutions to a global problem: how to protect whale species in their most important marine habitats that overlap with shipping lanes vital to the economies of many of the world’s nations.
Jennifer McCann, director of U.S. coastal programs for the Coastal Resources Center at the University of Rhode Island and extension director of Rhode Island Sea Grant, has received an international award for her work in coastal and ocean planning.
Ice loss from Canada’s Arctic glaciers has transformed them into a major contributor to sea level change, new research by University of California, Irvine glaciologists has found. From 2005 to 2015, surface melt off ice caps and glaciers of the Queen Elizabeth Islands grew by an astonishing 900 percent.
Continuing his research, NSU scientist Matthew Johnston, Ph.D., looks at the potential threat the invasive lionfish poses to reef fish in the Caribbean, Gulf of Mexico and Atlantic Ocean.
Hagfish are marine fish shaped like eels, famous for releasing large quantities of “slime” that unfolds, assembles and expands into the surrounding water in response to a threat. Gaurav Chaudhary, at the University of Illinois at Urbana-Champaign, will present his work on hagfish slime during the 88th Annual Meeting of The Society of Rheology, being held Feb. 12-16, in Tampa, Florida. The research explores the hagfish’s slime formation and the special properties allowing it to assemble into a solid gel without dissolving into the surrounding water.
Wild dolphins are more likely to be injured if humans feed them — even through unintentional means like discarding bait — reports a new study based in Sarasota Bay, Florida, and published recently in the peer-reviewed journal Royal Society Open Science.
Drainage of four interconnected lakes below Thwaites Glacier in late 2013 caused only a 10 percent increase in the glacier’s speed. The glacier’s recent speedup is therefore not due to changes in meltwater flow along its underside.
Scripps Institution of Oceanography at the University of California San Diego Professor James Day and colleagues examined radioactive glass found blanketing the ground after the first nuclear test bomb explosion is being used by scientists to test theories about the Moon’s formation some 4.5 billion years ago.
James Cook University scientists have helped discover the remnants of a massive undersea landslide on the Great Barrier Reef.
A Case Western Reserve University researcher found and videoed the Cuatro Ciénegas cichlid, Herichthys minckleyi, using the reproductive strategy called sneaking to insert himself between a mating pair and pass his DNA onto the next generation.
A compound extracted from a deep-water marine sponge collected near the Bahamas is showing potent antibacterial activity against the drug resistant bacteria methicillin-resistant Staphylococcus aureus (MRSA) also called the “super bug.”
An international team of scientists has confirmed that the dorado catfish (Brachyplatystoma rousseauxii) of the Amazon River basin holds the record for the world’s longest exclusively freshwater fish migration, an epic life-cycle journey stretching nearly the entire width of the South America continent.
For marine protected areas established to help coral reefs recover from overfishing, size really does seem to make a difference.
Tiny air bubbles compressed within a polar ice core make some sections brittle to the touch, but one ice core lab knows how to handle this delicate part of the chemical analysis, thus making the dating of the entire ice core possible.
Scientists used one of the world’s most powerful electron microscopes to map the precise location and chemical type of 23,000 atoms in an extremely small particle made of iron and platinum. Insights gained from the particle’s structure could lead to new ways to improve its magnetic performance for use in high-density, next-generation hard drives.
New analysis supports mangrove forests, tidal marshes and seagrass meadows as effective climate buffers.
China’s rapid ascent to global economic superpower is taking a toll on some of its ancient ways. For millennia, people have patterned their lives and diets around the vast fisheries of the East China Sea, but now those waters are increasingly threatened by human-caused, harmful algal blooms that choke off vital fish populations.
Researchers have described a little known yet fascinating aspect of the behavior of Lybia crabs, a species which holds sea anemones in each of its claws (behavior which has earnt it the nickname ‘boxer’ or ‘pom-pom’ crab). In a series of experiments, they showed that when these crabs need an anemone, they will fight to steal one from another crab and then both crabs will split their anemone into two, creating identical clones.
How were the Earth’s solid deposits of iron ore created? Dr. Itay Halevy suggests that, billions of years ago, “green rust” formed in seawater and sank to the ocean bed, becoming an original source of banded iron formations. While this would have been just one means of iron deposition, green rust seems to have delivered a large proportion of iron to our early ocean.
After more than a year of data collection, analysis and mapping, the University of Georgia River Basin Center and the Tennessee Aquarium Conservation Institute recently published a comprehensive survey of Southeastern watersheds and the diverse aquatic wildlife that live in these freshwater ecosystems.
Iowa State's Neal Iverson is working with an international team on two projects that aim to build more realistic computer models of glacier flow. The researchers hope to understand how glaciers will speed up and add to sea-level rise as the climate warms.
An international team of researchers has discovered why fresh water, melted from Antarctic ice sheets, is often detected below the surface of the ocean, rather than rising to the top above denser seawater.
Research scientists at Nova Southeastern University (NSU) have been studying the genetics of great white and great hammerhead sharks, and their work brings us a few steps closer to understanding – from a genetic sense – why sharks exhibit some characteristics that are highly desirable by humans (specifically, rapid wound healing and possible higher resistance to cancers.)
A highly toxic form of mercury could jump by 300 to 600 percent in zooplankton – tiny animals at the base of the marine food chain – if land runoff increases by 15 to 30 percent, according to a new study. And such an increase is possible due to climate change, according to the pioneering study by Rutgers University and other scientists published today in Science Advances.
A new study compiling 3,000 years of change in reefs in the western Caribbean by Smithsonian scientists and colleagues reveals compelling evidence that parrotfish, which eat the algae that can smother corals, are vital to coral-reef health.
A team including University of Utah mathematician Kenneth Golden has determined how Arctic melt ponds form, solving a paradoxical mystery of how a pool of water actually sits atop highly porous ice.
Humboldt State University researchers have been awarded a $271,000 federal grant to help two Northern California fishing communities improve the social, economic, and environmental sustainability of their waterfronts.
Sea level in the Northeast and in some other U.S. regions will rise significantly faster than the global average, according to a report released by the National Oceanic and Atmospheric Administration (NOAA). Moreover, in a worst-case scenario, global sea level could rise by about 8 feet by 2100. Robert E. Kopp, an associate professor in the Department of Earth and Planetary Sciences at Rutgers University, coauthored the report, which lays out six scenarios intended to inform national and regional planning.
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