Shelled pteropods, microscopic free-swimming sea snails, are widely regarded as indicators for ocean acidification because research has shown that their fragile shells are vulnerable to increasing ocean acidity.
Partially protected areas - marine reserves that allow some forms of fishing - are no more effective socially or ecologically than open marine areas in Australia's Great Southern Reef, a new UNSW study has concluded.
In a new study, an international research team led by Sebastian Stumpf from the University of Vienna describes an exceptionally well-preserved skeleton of the ancient shark Asteracanthus. This extremely rare fossil find comes from the famous Solnhofen limestones in Bavaria, which was formed in a tropical-subtropical lagoon landscape during the Late Jurassic, about 150 million years ago.
In a proof-of-principle study, Cornell researchers describe a new technique in which they analyzed environmental DNA – or eDNA – from water samples in Cayuga Lake to gather nuanced information about the presence of these invasive fish.
A new study conducted at the New England Aquarium finds that as climate change causes the ocean to warm, baby sharks are born smaller, exhausted, undernourished, and into environments that are already difficult for them to survive in.
Climate changes prompt many important questions.
As the waters off our coasts change due to human influences, scientists have found that the composition of shells of California mussels, a critical species found along the Pacific Coast, are weakening as a result of ocean acidification.
Fish populations tend to do better in places where rigorous fisheries management practices are used, and the more measures employed, the better for fish populations and food production, according to a new paper published Jan. 11 in Nature Sustainability.
How the larvae of colorful clownfish that live among coral reefs in the Philippines are dispersed varies widely, depending on the year and seasons – a Rutgers-led finding that could help scientists improve conservation of species. Right after most coral reef fish hatch, they join a swirling sea of plankton as tiny, transparent larvae. Then currents, winds and waves disperse them, frequently to different reefs.
A new study shows that the gigantic Megalodon or megatooth shark, which lived nearly worldwide roughly 15-3.6 million years ago and reached at least 50 feet (15 meters) in length, gave birth to babies larger than most adult humans.
An invisible flow of groundwater seeps into the ocean along coastlines all over the world.
Second only to the spiny lobster, the queen conch is a prized delicacy long harvested for food and is revered for its beautiful shell. Conch populations have dwindled so low, creating a dire and urgent situation in ecological and economic terms. To preserve this most significant molluscan fishery in the Caribbean, the world’s leading expert on queen conch aquaculture has published an 80-page, step-by-step user manual that provides complete illustrations and photos of how to culture and restore the queen conch.
In the future, the Antarctic could become a greener place and be colonised by new species.
New Cornell University-led research suggests that starfish, victims of sea star wasting disease (SSWD), may actually be in respiratory distress – literally “drowning” in their own environment – as elevated microbial activity derived from nearby organic matter and warm ocean temperatures rob the creatures of their ability to breathe.
The Marine and Coastal Research Laboratory in Sequim, Washington, is the U.S. Department of Energy’s only marine research facility. It has a rich history and expanding research scope.
Bitterling fishes (Subfamily: Acheilognathinae) spawn in the gills of living freshwater mussels obligately depending on the mussels for reproduction.
Researchers have found a novel way to identify heat-stressed corals, which could help scientists pinpoint the coral species that need protection from warming ocean waters linked to climate change, according to a Rutgers-led study.
Carrageenans, biologically active polysaccharides isolated from red algae and widely used in the food industry as stabilizers, thickeners, or jelly agents have an express effect on the immune systems of mice, a study reports.
New research produced jointly by The Swire Institute of Marine Science (SWIMS), Faculty of Science, The University of Hong Kong (HKU), and The Nature Conservancy (TNC), published recently in the scientific journal Restoration Ecology, shows the enormous potential of restoring lost oyster reefs, bringing significant environmental benefits.
Mussels, oysters and scallops have the highest levels of microplastic contamination among seafood, a new study reveals.
With no dissolved oxygen to sustain animals or plants, ocean anoxic zones are areas where only microbes suited to the environment can live.
Armstrong studied the microscopic communities living within the water samples to understand more about water quality and primary production.
Bans on shark fishing are only partially effective in protecting sharks, new research suggests.
Not all specimens of the same species are the same: there is a marked variability within the same population and sometimes these morphological differences are translated into a different behaviour.
Co-author from Kazan Federal University, Professor Rushan Sabirov explains, "In ecosystems, two or more closely related species of organisms with similar ecology and morphological appearance often inhabit the same territory.
A special issue of the Marine Technology Society Journal focuses on research and development efforts among industry, academia, and national laboratories, including PNNL. The issue was guest edited by Alicia Gorton, a project manager and ocean engineer at PNNL.
Citing a 90% decline in the species’ global population, the International Union for Conservation of Nature (IUCN) on Dec. 10 officially placed the sunflower sea star (Pycnopodia helianthoides) on the group’s Red List of Threatened Species, meaning that it is critically endangered. The next step is extinction.
A pair of new studies found that large amounts of methane can be found in tidal salt marshes, a discovery that will be critical in the fight to battle climate change.
Conservation of fish and other marine life migrating from warming ocean waters will be more effective and also protect commercial fisheries if plans are made now to cope with climate change, according to a Rutgers-led study in the journal Science Advances.
Increased depth range and the ability to explore 99% of the ocean floor, including the abyssal region—one of the least understood areas of the deep sea—are just some of the upgrades underway for the iconic human-occupied Vehicle (HOV) Alvin that were unveiled today at the American Geophysical Union’s (AGU) Fall Meeting 2020.
A study of weakly electric fishes from a remote area of the Brazilian Amazon Basin has not only offered a unique window into how an incredibly rare fish has adapted to life in caves over tens of thousands of years, it has also revealed for the first time that electric fish are able to interact with each other over longer distances than known possible in a way similar to AM radio.
A mysterious small marine reptile dating from 150 million years ago has been identified as a new species that may have been capable of diving very deeply. The well-preserved specimen was found in a Late Jurassic deep marine deposit along the English Channel coastline in Dorset, England.
The recovery of beavers may have beneficial consequences for amphibians because beaver dams can create the unique habitats that amphibians need.
Using active acoustic telemetry and sonar data, a study provides the first detailed documentation of a shallow water fish diving 450 feet deep to spawn. Prior research has shown that bonefish dive about 164 feet to spawn, but this new and unprecedented study reveals that they reached depths of 450 feet, and moved below 325 feet for two hours before spawning in a rush upward to 220 feet deep.
Have you recently wondered how social-distancing and self-isolation may be affecting your brain?
A team led by researchers at the University of Washington Tacoma, UW and Washington State University Puyallup have discovered a chemical that kills coho salmon in urban streams before the fish can spawn.
Ancient deep sea creatures called radiodonts had incredible vision that likely drove an evolutionary arms race according to new research published today.
Global insurance company AXA has established the AXA Chair in Coastal Resilience at UC Santa Cruz to support the work of Michael Beck, a research professor in the Institute of Marine Sciences and the Department of Ocean Sciences, to advance the conservation and restoration of coastal habitats as natural defenses against storms and climate change.
Waste fishing gear in the River Ganges poses a threat to wildlife including otters, turtles and dolphins, new research shows.
A collaboration between researchers from Cornell University and the University of Wisconsin-Madison has found that small, community-based reserves in Thailand’s Salween River Basin are serving as critical refuges for fish diversity in a region whose subsistence fisheries have suffered from decades of overharvesting.
Dolphins actively slow down their hearts before diving, and can even adjust their heart rate depending on how long they plan to dive for, a new study suggests.
Biodiversity Research Institute announced that a series of scientific studies that assessed the impact of mercury on air, water, fish, and wildlife in New York State was published in the journal Ecotoxicology, an international journal devoted to presenting critical research on the effects of toxic chemicals on people and the environment.
An international consortium of scientists has created the first-ever common framework for increasing comparability of research findings on coral bleaching.
The pandemic is putting a hurt on the seafood industry, finds the largest study of COVID on U.S. fisheries, which suggests that American fishmongers may flounder - or go belly up - without more government aid. -Monthly fresh seafood exports declined up to 43% -Monthly imports fell up to 37% -Catches dropped 40% some months. Over the first six months of 2020: -Total U.S. seafood exports are down 20% -Imports are down 6% -Further losses are likely as restrictions increase to address COVID-19.
Small photosynthetic marine algae are a key component of the Arctic marine ecosystem but their role for the ecology of the Arctic Ocean have been underestimated for decades.
Scientists tagged and released a young, rare female smalltooth sawfish -- a significant step for sawfish research and recovery efforts in Florida. The 10-year acoustic tag is a major milestone in providing crucial capacity to tell where these mysterious and endangered fish are headed in the future.
Some, if not all, early sharks that lived 300 to 400 million years ago not only dropped their lower jaws downward but rotated them outwards when opening their mouths.
Several years ago, faculty and students at the University of Wisconsin-Milwaukee began underwater mapping of the physical features and fish populations in the Milwaukee harbor. Their online visual tool is now guiding restoration efforts.
A new study reports that, for several species of oceanic sport fish, individual fish that are caught, released and recaught are more likely to be caught again than scientists anticipated. The findings raise some interesting questions for policy makers tasked with preserving sustainable fisheries.
New research into how catfish capture prey provides an unparalleled view of the internal mechanics of fish skulls and could inspire the design of new underwater robots.
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