Articles tagged with Coastlines
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Researchers used drones to create detailed maps of a high-density nesting beach, identifying steepness and proximity to dune crossover stairs as key factors influencing turtle nesting success. The study provides insights into how changing coastal conditions affect sea turtle habitats, informing conservation policy and coastal development.
A new study has analyzed a rare flooding event in the Maldives in July 2022 and found it could become a far more common occurrence in the future. By 2050, predicted rises in sea levels, coupled with increased extreme weather events, may result in such flooding happening every two to three years.
New research reveals many encouraging signs for ochre sea star populations, with many baby boomers reaching adulthood and population numbers exceeding pre-wasting disease abundances. However, the average body sizes of the sea stars are still smaller than before, and the populations coast-wide are generally less steady from year to year.
A new study finds that sargassum seaweed can significantly slow down sea turtle hatchlings in Florida, increasing their risk of predation and heat exposure. Researchers found that even small amounts of sargassum can impede hatchlings' progress, with leatherbacks taking 54% longer to crawl through light sargassum.
A Brazilian study maps the direct and indirect impacts of marine resource-dependent economic activities, revealing strong connections between coastal and inland regions. The research highlights the importance of the blue economy in Brazil's GDP and employment, with regional specializations varying across states.
A new study revisits forecasts made in 2002 about the world's rocky shorelines, finding some threats have materialized while others have not. The researchers highlight the importance of addressing issues like ocean acidification and plastic pollution to protect coastlines.
A new study by the University of Cambridge found that seaside and blue-colored places are more likely to evoke feelings of nostalgia in people. The research suggests that these environments have visual properties that contribute to positive emotions, including 'fractal property' and high contrast.
A new study found that hermit crabs with more sensory hairs on their claws recover faster from a startle response, indicating they are bolder. The research suggests a link between sensory ability and behavior, proposing a hypothesis called sensory investment syndrome.
Researchers developed a model to detect early signs of marsh decline using satellite observations, identifying vulnerable areas along Georgia's coast. The study found belowground biomass has declined across 72% of Georgia's coastal marsh since 2014.
A team of researchers has developed a new theory to explain how mini sand dunes form on Earth's surface, including beaches and deserts. They found that sand moves higher and is transported more by the wind when it lands on softer surfaces.
Researchers developed a new method to predict the effectiveness of mangroves in protecting coastlines against extreme weather events. The HU method uses wave non-linearity and can calculate wave height attenuation with ease, saving billions of dollars worldwide.
The article highlights the vulnerability of US Gulf coast archaeological sites to climate change-induced sea level rise and extreme weather. The study calls for an integrated approach combining coastal ecosystem management with archaeological and historical resource preservation using Indigenous traditional ecological knowledge.
A new study by MIT scientists finds that extreme storm tides will increase tenfold for Bangladesh, with what was once a 100-year event now striking every 10 years by the end of the century. The country's densely populated coastal regions are expected to experience more frequent and severe flooding events as a result.
Analysis of citizen science data suggests that warmer ocean temperatures can increase loggerhead sea turtle nesting sites along Italy's coastlines. Preserving natural beaches is crucial for maintaining these habitats.
Research by Griffith University warns that over 43% of Queensland's productive aquaculture sites are expected to be impacted by sea level rise. The study projects significant economic losses due to the impact on prawn production, with annual losses estimated at AUD$12.6-127.6 million.
A new computer modeling tool suggests that Bronze Age people may have traveled directly over the open ocean between Denmark and Norway. The simulations indicate that such trips were possible, but required a boat with specific capabilities and good weather forecasting.
Research finds that strengthened westerly winds enhance clockwise oceanic circulations, transporting warm seawater and causing accelerated ice sheet melting in East Antarctica. This study's findings improve future sea level rise projections.
A study published in Ocean and Coastal Management reveals that artisanal fishers can be almost as accurate as satellites in producing environmental data. The researchers mapped seagrass beds along the coastlines of five Greek islands, with fishermen's maps showing an average accuracy of 78%, compared to 11% more than government policies.
Researchers created a new GIS-based multi-criteria decision tool to guide decisions on using nature-based shorelines or hybrid solutions in the Florida Keys. The study finds that nearly 8% of the shoreline is suitable for nature-based solutions, while 67% is already vegetated or represents another natural shoreline.
A recent study found that intense east coast low storms and marine heatwaves caused the deaths of over 200 weedy seadragons on Sydney beaches. The extreme weather triggered record-breaking waves and rainfall, which seadragons struggle to handle.
A comprehensive global assessment of ocean current energy identifies high power density areas off the East coast of the U.S. and Eastern coast of Africa, suitable for generating electricity from ocean currents. The study highlights the importance of expanding data collection to refine understanding and unlock the full energy potential ...
Researchers confirm presence of potentially toxic Ostreopsis ovata algae in La Concha Bay, highlighting importance of substrate type and need for further study. Continued monitoring is advised to determine level of concentration and control situation.
A study predicts East Coast estuaries will face devastating consequences from increased marine heat waves, with potential ecosystem collapse and job losses. The researchers found strong connections between estuaries in similar geographic regions, driven by atmospheric heat exchange.
A study of over 97 citizen scientists found that coastal areas have significantly more litter than inland locations, with urban areas consistently exhibiting more litter than rural areas. The research highlights the need for tailored waste management strategies to address regional differences in litter patterns.
New research reveals that human disturbances near southern sea otters can increase their energetic costs, potentially affecting their health and survival. The likelihood of disturbance decreases with distance from the otters, but even small craft within 29 meters can have a significant impact.
Researchers from University of Jyväskylä recommend addressing vulnerabilities in coastal communities, such as uncontrolled shrimp farming and pollution. They suggest supporting environmentally friendly livelihoods like freshwater harvesting and agroforestry to promote sustainable development in mangrove forest areas.
A study by the American Academy of Neurology found a correlation between microplastics in oceans and increased disabilities among coastal residents. The research, which looked at 218 US counties, showed that areas with higher levels of marine microplastics had higher rates of mobility, self-care, and independent living disabilities.
A new study suggests that up to 70% of suitable habitats for the critically endangered whitefin swellshark will be lost over the next 75 years due to predicted ocean changes. The researchers believe that Australia's proactive conservation measures, such as marine protected areas, offer hope for the species' survival.
Citizen scientists can join world-renowned microplastic expert Professor Claire Gwinnett on an expedition to monitor microplastic pollution in basking shark feeding sites. The expeditions will use a new app with AI analysis to categorize plastic samples, providing valuable data on microplastic levels and health impacts on sharks.
The International Shark Attack File reported only 47 unprovoked shark bites globally in 2024, down from 22 in 2019. Four fatalities occurred last year, with the US having the highest number of unprovoked bites, accounting for 28 incidents.
Researchers tracked 131 juvenile sea turtles and found they may be active swimmers during their early life stage, challenging existing hypotheses. The study provides important data for assessing risks from human activity and informing conservation efforts.
Sea snails and isopods grazing on eelgrass create wounds that make it susceptible to wasting disease. The study found a significant association between invertebrate grazing and disease prevalence across the Pacific Coast.
A small amount of Arctic groundwater releases an estimated 230 tons of organic carbon per day along Alaska's coastline, contributing to climate change and ocean acidification. This discovery highlights the significant role of freshwater discharge in the Arctic Ocean.
A new study reveals that Amazonian mangrove forests release essential trace elements like neodymium into the ocean, supporting marine ecosystems and the carbon cycle. Mangroves act as biochemical reactors, releasing nutrients and metals into coastal waters.
A deadly ciliate parasite has decimated sea urchin populations in the Caribbean, Red Sea, and Indian Ocean, with mortality rates reaching over 90%. The International team of researchers is working to track the disease and preserve sea urchins, which play a crucial role in maintaining coral reef health.
Research shows that juvenile sablefish are increasingly competing with young salmon for food in coastal waters off the Northwest, potentially putting salmon at a disadvantage. This overlap could be exacerbated by ocean warming and climate change, which already threaten salmon survival.
A new study maps Arctic coastal communities and infrastructure, revealing that 21% of settlements will face damage due to erosion, while 45% will be affected by sea level rise. By 2100, 77% of the Arctic infrastructure may sit on ground no longer frozen solid.
Researchers estimate that 1.72 billion people were within 50 km of shoreline in 2000, increasing to 2.2 billion by 2020, with the most significant increases occurring nearest the shoreline.
A new study led by the University of Washington found that only about 7% of areas at highest risk for whale-ship collisions have any measures in place. The team identified high-risk regions, including coastal areas along the Mediterranean, Americas, southern Africa, and parts of Asia, where whales and ships are most likely to meet.
Researchers found high levels of contamination on Perequê Beach in Guarujá, Brazil, with plastic and cigarette butts predominating. The study, published in Marine Pollution Bulletin, highlights the need for public policies to mitigate litter and protect marine ecosystems.
Climate-induced changes in the Ocean impact how we live alongside it, with development and management plans struggling to keep up. Experts call for better understanding of links between the Ocean and climate to ensure adaptive management plans for housing, food, fresh water, and nature.
Researchers at Loma Linda University found the Salton Sea's shoreline is retreating at an increasing rate, creating more polluted dust from agricultural runoff. The study forecasts parts of the North Shore will retreat up to 172 meters by 2041, posing health risks to nearby communities.
Scientists used acoustic mapping technique to track vulnerable capelin species and observe massive predation event involving Atlantic cod. The study revealed that as climate change causes Arctic ice sheet to retreat, capelin will be more stressed and vulnerable to natural predation events.
Research reveals two species of sardine in the California Current, with Japanese sardines arriving on the West Coast around 2022. The discovery highlights the impact of marine heatwaves and changing ocean conditions on fish distributions.
Researchers found that restoring coastal marshes can significantly help protect coastlines at a reasonable cost. A study by MIT graduate student Ernie I. H. Lee and professor Heidi Nepf shows that enhancing salt marshes in front of protective seawalls can reduce construction costs while still providing adequate protection from storms.
Researchers confirm Rottnest Island and Swan River geological histories through ancient mineral grains. The study offers insights into the coast's transformation over thousands of years and its future adaptations to rising sea levels.
A new study in PLOS ONE reports on the contents of 25 coastal and underwater cave sites in southern Sicily, uncovering three new sites with potentially important archaeological sediments. The findings provide key data for understanding the early expansion of Homo sapiens into the Mediterranean.
A study found that environmental factors like sea surface temperature, wave energy, and freshwater discharge have a greater impact on marine organisms' size and abundance than ecological processes. In colder waters, marine organisms are larger, with filter feeders growing up to 130% larger.
Research reveals European flat oysters formed large reefs of living and dead shells, supporting rich biodiversity and stabilizing shorelines. Historical records show that these reefs existed along Europe's coasts from Norway to the Mediterranean, but were destroyed over a century ago due to overfishing.
Researchers used aerial drone technology and boat-based surveys to map complex tidal flows around the world's most powerful tidal turbine, O2. The study provides new insights into optimal turbine placement and site-specific assessments to address uncertainties surrounding interactions with marine habitats and environments.
A new study led by the Alfred Wegener Institute has analyzed 2.2 tons of sand from 71 beaches along the German coast, revealing that 52 beaches were contaminated with plastic. The researchers found an average of four plastic particles per square meter, but noted that microplastic pollution varies greatly from place to place.
Researchers developed new surface treatments to reduce biological toxicity effects on marine organisms. Biofilm growth and coral survival were significantly improved on surface-treated samples, while bulk-treated samples showed reduced biofilm growth and mechanical properties.
A new study found that most US cities are successfully limiting floodplain development by applying existing tools and strategies. In New Jersey, municipalities have consistently limited new housing in floodplains and impervious surface growth using conventional local ordinances and modest government capacity.
Researchers have captured sub-adult male northern elephant seals returning to a deep-sea cabled observatory off Canada's British Columbia coast. The footage provides new insight into their fish foraging behavior at depth.
Researchers have developed a bioinspired process to make marine sand more durable and resistant to erosion by applying a mild electric current. This natural cement reduces the need for expensive protection structures and provides a sustainable solution for strengthening global coastlines.
A UK-based study reveals that an offshore mussel farm is reviving shellfish reefs off the English south coast, a process previously unseen in 150 years. The research found mussels deposited on the seabed create habitats for commercially important species like European lobsters and brown crabs.
Researchers at the University of Tokyo have discovered a new species of starfish off the coast of Japan, shedding light on the country's marine biodiversity. The newly named Paragonaster hoeimaruae is a distinctive red and beige color with five arms and spans over 10 centimeters.
A McGill-led study finds that swift action to lower emissions could prevent some of the most destructive impacts of climate change, particularly for coastal communities. The research suggests that reducing carbon emissions could reduce Antarctica's contribution to sea-level rise by up to 40%.
A joint international study found that tropical cyclones in Southeast Asia are forming closer to coastlines, intensifying rapidly, and lingering longer over land. This can lead to unprecedented threats from longer-lasting and more intense storms for tens of millions in coastal areas.
A new study has determined the vertical limits of the marine environment in the Southwest Atlantic, revealing that the mesophotic zone extends to a depth of between 15m and 18m. The research found distinct differences in fish diversity and species composition between the shallow and mesophotic zones.