Articles tagged with Coastlines
A study by Universitat Autonoma de Barcelona found that all aquatic species in river mouths are contaminated with microplastics. Molluscs were the most affected, and nanoplastics posed a greater risk to aquatic organisms due to their ability to pass through cellular membranes.
A new study found that removing mangroves in New Zealand's estuaries actually increases mud build-up, as these coastal trees and shrubs trap sediment efficiently. This highlights the need for sustainable land use upstream to address the root cause of the issue, rather than focusing solely on mangrove removal.
A Northwestern University and University of Copenhagen study reveals that Greenland's thousands of peripheral glaciers have rapidly retreated over the past two decades. The research team combined satellite images with historical aerial photographs to document changes in over 1,000 glaciers over a century.
Researchers found that Singapore's coasts were resilient during high sea-level rise rates due to high sedimentation rates. This study provides new insights into the interplay between rising sea levels and sedimentation.
Scientists have observed wolves directly hunting and consuming sea otters and harbor seals in Alaska's Katmai National Park. This new evidence challenges previous assumptions about wolf behavior and diet. The study highlights the unique role of wolves in nearshore ecosystems in Alaska.
A study found that invertebrate abundance and diversity decreased near human activities like shellfish harvesting and heavy metal pollution. In contrast, environmental factors like water temperature and salinity impacted invertebrates further away from human settlements.
A team of researchers warns that global coastal adaptations are inadequate to address climate change threats, citing short-sighted policies and projects. The experts call for decisive action by the international policy community to identify and tackle key risk areas.
Researchers at Kyoto University have found three new species of animals living together in harmony with worms in dead coral rocks. The discovery highlights the importance of community structure and biodiversity patterns in cryptofauna, suggesting that symbiotic relationships are omnipresent in the ocean.
Eastern North Pacific gray whales experience extreme population swings due to changing Arctic Ocean conditions. Long-term monitoring data reveals a bumpy ride in response to variable ocean conditions.
A genetic study has decoded the lineage of 'Old Tom,' a famous killer whale in Australia, and found ancestral connections to modern-day New Zealand orcas. The research also reveals that the killer whales of Eden may have become extinct locally due to a lack of shared DNA with other killer whales globally.
Research reveals that Category 4 and 5 hurricanes are arriving three to four days earlier with each passing decade due to climate change. This shift in seasonal cycle can lead to compounding extreme events and challenges community preparedness.
Researchers found that mature mangroves can tolerate high rates of subsidence and sea level rise, but sediment availability is crucial for their effectiveness. In areas with insufficient sediment, mangroves' ability to stabilize coastlines will deteriorate, leading to inland migration of communities.
A study found that ocean acidification reduced the strength and density of fleshy seaweed tissues, making them more fragile and susceptible to damage. The research suggests that this could have drastic effects on coastal ecosystems, leading to a decrease in seaweed coverage and negatively impacting organisms dependent on these habitats.
A new LSU-led project will install up to eight high-frequency radar systems along the Louisiana coastline, providing near-real-time monitoring of ocean surface currents. The system will contribute data to NOAA's Integrated Ocean Observing System, enhancing marine forecasts and safety in coastal waters.
The Resilience Justice Project at Brandeis School of Law will examine how eight US coastal cities ensure climate adaptation plans are fair and equitable. The team aims to produce a guidebook of best practices and webinars to help cities adapt planning for all neighborhoods.
A new study published in the Journal of Glaciology suggests that prior attempts to evaluate the mass of Antarctic ice shelves may have overestimated their thickness. The researchers found that on average, the Antarctic ice shelves are nearly 6% thinner than previously assumed, a difference of about 17 meters.
Scientists have discovered two 14ft smalltooth sand tiger sharks in Ireland's waters, a rare find suggesting the species is expanding its geographic range due to warmer sea temperatures. The discovery highlights the need for increased awareness and monitoring of these vulnerable creatures.
A new study published by the University of Rhode Island's Graduate School of Oceanography reveals extensive microplastic storage in Narragansett Bay, with an estimated 1,000 tons stored in the top 5 cm of its floor. The buildup has occurred over the last 10-20 years, primarily due to littering and runoff of single-use plastic items.
Sperm and northern bottlenose whales frequently feed on live halibut escaping from a deep-sea trawler net. The study found that these whales were only spotted when the catch was Greenland halibut, not redfish or thorny skate.
A new study reveals massive urban expansions throughout the contiguous US, particularly on the Atlantic Coast, have led to significant tidal flat erosion. The research highlights the critical impact of human activities on tidal flat environments, providing important implications for coastal land use and planning.
Two studies by UPV/EHU researchers analyze recent and past oceanographic information off the Basque coast based on microfauna present in sediments. The research found that planktonic foraminifera assemblages are good indicators of ocean currents and water masses reaching the Basque continental shelf today.
A new study published in Scientific Reports has investigated the impact of long-term changes in ocean wave and storm surge conditions on sandy coastlines over the past 30 years. The research found no clear linkages between these changes and shoreline recession, with sediment supply, human management, and other factors likely playing a ...
Researchers from McGill University found that stronger winds shift the Labrador Current eastward, leading to sudden warmings or drops in oxygen levels. This has dire consequences for marine ecosystems and fisheries, including smaller species like cod and halibut, which struggle to survive in low-oxygen conditions.
Researchers found that two-thirds of European bird species shifted northeastward by an average of 100km over the past 30 years, with coastal communities facing extinction. Mountain ranges also controlled bird migrations, preventing some species from adapting to changing temperatures.
Researchers at Lancaster University demonstrate the viability of tidal power as a predictable renewable energy source. The creation of a tidal barrage could operate for 120 years or more to meet future demand and storage problems, protecting coastal areas from flooding and sea level rise.
A virtual reality project, Qikiqtaruk: Arctic at Risk, visualizes the impacts of climate change in the Canadian Arctic. The project, created by National Geographic Explorers and local communities, uses immersive technology to transport users to an island experiencing rapid thawing and environmental changes.
Researchers at the University of Gothenburg have discovered twenty species of sea lettuce in the Baltic Sea region, including three invasive species. The survey highlights the importance of knowing which species grow in specific areas to maintain and protect valuable ecosystems.
Researchers have investigated the impact of eddies on the Indonesian Throughflow, a vital current that transports warm waters between the Pacific and Indian Oceans. The study found large flow fluctuations in certain areas, leading to significant changes in seawater temperature and circulation patterns.
A multidisciplinary team of scientists conducted a comprehensive study to understand the sources and sinks of plastic debris in the Southern North Sea. Local citizen scientists played a crucial role in tracking the distribution pathways of plastic particles, revealing that two-thirds were washed ashore within 25km of their release site.
A new Stanford-led study quantifies the value of Belize's coastal mangrove forests in terms of carbon storage, tourism, and fisheries benefits. The findings suggest that relatively small amounts of mangrove restoration can have big economic benefits, while also providing protection against coastal storms and other risks.
Researchers at Flinders University identified rare images of Moluccan vessels in NT rock art paintings, potentially providing evidence of visitors from Southeast Asia to northern Australia. The depictions feature distinctive shape and configuration, indicating a degree of intimate knowledge of the craft.
A 15-country study confirms that people living near or visiting the seaside experience better health, regardless of country or personal income. The research, led by Sandra Geiger from the University of Vienna, found consistent patterns across all countries and demonstrated that everyone benefits from coastal access.
Researchers have developed an AI algorithm that accurately estimates coastal fish stocks, providing critical data for sustainable management. The tool has the potential to save millions of dollars in annual research costs and bridge the global data and sustainability divide.
Scientists have discovered weak, fossilised sediments beneath the seafloor of Antarctica's eastern Ross Sea, which led to massive underwater landslides. These layers made the area susceptible to failure due to past climate change.
Researchers at the University of Otago have discovered a new area of coastal uplift in Rarangi, Marlborough, using laser mapping and kelp genetics. The study provides new insights into Aotearoa's landscapes and recent earthquake impacts.
A new study found that coastal light pollution causes corals to spawn one to three days closer to the full moon, reducing the likelihood of fertilized eggs surviving and producing new adult corals. This disrupts the natural spawning cycle, which is critical for reef recovery after mass bleaching events.
A team of scientists, including a University of Central Florida researcher, is developing oyster-based shoreline protection for U.S. coastlines. The project aims to create self-repairing reef-mimicking structures to mitigate coastal flooding and erosion.
Salt marshes reduce wave run-up on dikes, but their impact is dependent on foreshore elevation and marsh width. In some locations, marshes are absent where mud flats are low-lying, highlighting the need for human interventions or hard engineering solutions to enhance protection.
A study published in Scientific Reports warns that sea level rises could lead to the flooding of sea turtle breeding grounds in Australia, Dominican Republic, Costa Rica, and the USA. The findings suggest that flooding could contribute to the loss of turtle nesting sites and negatively impact turtle populations.
The study reveals that the African penguin's geographical range has shrunk significantly over the past 22,000 years due to rising sea levels, leaving only a few small islands as suitable nesting habitats. This decline has been exacerbated by human pressures such as climate change, habitat destruction, and competition for food.
Researchers at Concordia University have developed a system of floating geotextile filters that efficiently remove suspended solids, algae, and nutrients from shallow lakes. The study shows promising results in lake water remediation, with the potential to scale up and benefit larger bodies of water.
Researchers at Stanford University have developed a new tool to estimate long-term coastal cliff loss, finding that rates are similar to those over the past 2,000 years. The study's approach provides a relative assessment of driving factors behind cliff retreat over longer periods, with implications for managing coastal erosion.
A study published in PLOS ONE warns of the dangers of coastal erosion on Libya's Cyrenaican coast, where numerous important archaeological sites are at risk. The research highlights increasing rates of erosion linked to human activities and climate change, emphasizing the need for detailed management and mitigation plans.
The Save Our Seas Foundation has awarded a record 75 grants to support shark and ray conservation projects worldwide. The foundation's 20th anniversary year highlights growing commitment to protecting these vital ocean species.
Researchers found record-breaking rates of sea-level rise of about a half an inch per year since 2010, three times higher than the global average over the same period. The acceleration is attributed to man-made climate change and natural climate variability.
Researchers find that changes in wind patterns caused by warmer tropical waters are steering storms closer to the US East and Gulf coasts, increasing risk for residents. The study reveals that this phenomenon is linked to stronger hurricane frequency due to climate change.
A toolkit for coral gardening could accelerate reef recovery in Saudi Arabia and globally. The Maritechture TM system includes tiles, stackable crates, and coral pods to create artificial reefs that attract natural coral settlement.
The University of Texas at Austin is helping the Port of Corpus Christi determine if it can permanently store greenhouse gas emissions from industrial operations beneath the seafloor of the Gulf of Mexico. The project aims to store carbon dioxide emissions in geological formations deep beneath the seafloor, reducing atmospheric emissions.
Researchers at NIST have developed a new method of digitally simulating hurricanes using AI techniques, accurately representing the trajectory and wind speeds of real storms. The simulations can help develop improved guidelines for building design in hurricane-prone regions.
Salt marshes along the US East Coast have accumulated soil more quickly over the past century to keep up with rising waters. However, this rate of growth will eventually slow down as sea levels continue to rise, and many coastal wetlands may not be able to adapt in time.
A new study published in Ecosphere finds that newly created tidal marshes in Barataria Bay rapidly become indistinguishable from natural marshes, supporting the state's plans to rebuild its coastline. The research reveals similar biodiversity in both created and natural marshes.
A major conference will discuss the human cost of heritage loss due to climate change and explore how behavioural science can inform choices about what should be saved. International scholars and policy experts will examine how to measure the impact of Loss and Damage on coastal heritage.
A new study warns of a rise in potentially fatal infections caused by bacteria found along parts of the US coast, driven by global warming. The number of Vibrio vulnificus infections has increased from 10 to 80 per year over 30 years, with cases now found further north than ever before.
A new study finds that supernovae have a persistent influence on marine life's biodiversity, with variations in nearby exploding stars closely following changes in marine genera. Supernovae may regulate climate through cosmic rays, influencing nutrient transport and primary bioproductivity.
A new study by Monterey Bay Aquarium reveals the key components contributing to successful releases of orphaned southern sea otters back into the wild. The research emphasizes the strong maternal drive of surrogate female sea otters in nurturing and caring for pups, resulting in a three-quarters success rate.
Researchers found that levee building and subsurface resource extraction account for 40% of land loss in the Mississippi River Delta. A new sediment diversion project may help reverse land loss by releasing sediment into the Barataria Basin.
A new study using satellite images found that glaciers on the Antarctic Peninsula are flowing up to 22% faster during summer months due to warmer ocean waters and melting snow. This speed-up, driven by reduced friction between ice sheets and underlying rock, poses a significant threat to global sea levels.
A team of researchers has identified the importance of rifted margins in the transition to a green economy. These continental margins harbor vast accumulations of rocks and hydrocarbon reserves, making them a potential location for new resources needed for a carbon-neutral economy. The study provides an overview of the processes that s...
A study by University of Gothenburg researchers identifies two distinct types of cod, 'offshore cod' and 'coastal cod', genetically adapted to different environments. The coastal cod remain in the fjords, but their adult stage is uncertain, with possible spawning locations still unknown.
Humans have added approximately 900 square miles of land to urban coastlines since 2000, primarily for industrial ports and luxury residential areas. The study found that coastal wetlands are particularly hard-hit, with more than half of tidal flats lost in the Yellow Sea due to reclamation.