Articles tagged with Seagrasses
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A new species of ancient sea cow has been discovered in Qatar, revealing that sea cows have shaped the Arabian Gulf's seagrass ecosystems for over 20 million years. The fossil site, Al Maszhabiya, yielded more than 170 different locations containing sea cow fossils.
Scientists from Salk and UC San Diego have discovered a new hybrid seagrass that demonstrates low-light tolerance, offering a promising solution for coastal restoration efforts. The hybrid combines the shallow-water Zostera marina with its deeper-water cousin Zostera pacifica, inheriting the latter's low-light toolkit.
A team of international marine scientists urges reform to licensing and regulation of coastal restoration projects. The authors argue outdated systems hinder progress toward ambitious global targets to restore 30% of degraded ecosystems by 2030.
A University of Liège study shows that the root microbiome is essential for plant survival and success in transplantation. The method used has a direct impact on the composition of beneficial bacteria, which play a crucial role in sulphur and nitrogen cycles.
Researchers have recorded the sliteye shark for the first time on the Great Chagos Bank, highlighting the ecological importance of the archipelago's Marine Protected Area. The discovery provides new insights into deepwater seagrass habitats and their role in supporting marine biodiversity.
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 new study published in Marine Ecology Progress Series reveals that seagrass ecosystems along Florida's Nature Coast have remained relatively healthy over the last several thousand years. The research, conducted by conservation paleobiologists, used fossilized mollusk shells to infer ecosystem health and found that these communities a...
A new algorithm detects intertidal seagrass meadows using Sentinel-1 SAR and Sentinel-2 optical imagery, avoiding manual sample selection for scalability. This tool enables tracking of seagrass dynamics over time, providing valuable insights into ecosystem resilience.
A groundbreaking study transplants 384 m² of Posidonia oceanica to preserve Mediterranean ecosystems threatened by coastal development. The method successfully preserves roots and substrate, leading to remarkable resilience and expansion.
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.
A new study from Chapman University reveals that Phyllaplysia taylori, a tiny marine mollusk, is remarkably heat-tolerant and genetically diverse. This makes it an ideal partner for climate-resilient coastal restoration efforts, which are crucial in the face of accelerating climate change.
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.
Seagrass meadows promote biodiversity, coastal protection, and water quality improvement while effectively storing carbon dioxide. A new project aims to develop strategies for their conservation and restoration in the Baltic Sea.
Researchers predict that climate change will drive a substantial redistribution of brown seaweeds and seagrasses globally, with potential expansions into Arctic and Antarctic regions. The loss of these habitat-forming marine macrophytes can trigger cascading effects on other species, compromising the integrity of entire ecosystems.
A team of researchers has developed a novel genetic clock to determine the age of a large marine plant clone for the first time. The oldest identified seagrass clone is 1402 years old and was found in the Baltic Sea, making it older than other long-lived species.
Scientists from the University of East Anglia and other institutions review the climatic effectiveness of four 'nature-based' techniques using marine biological processes. They conclude that these activities cannot provide a significant contribution to carbon dioxide removal, posing risks to meaningful climate mitigation.
Researchers evaluate the social narratives, technology, and co-impacts of coral reef preservation, seagrass restoration, and seaweed cultivation in the fight against climate change. These blue carbon solutions have the potential to reduce emissions and advance conservation policy.
New research demonstrates that incorporating widgeongrass into seagrass restoration efforts can increase the portfolio of species diversity and enhance long-term success. The study found that seeding widgeongrass in the fall with minimal pre-treatment resulted in highest survival and growth rates.
A new study reveals that tropical herbivores moving into subtropical waters are at risk of overgrazing seagrasses, which could lead to the decline of these vital habitats. To mitigate this, researchers emphasize the importance of protecting water quality and providing sufficient light for seagrasses to thrive.
Research findings show seagrasses have evolved unique adaptations to thrive in marine environments, including genome duplication and fine-tuning of supportive pathways. The study's results provide clues for conserving and sustainably using these important ecosystems.
A long-term study found that increased phosphorus availability and salinity are key drivers of change in the lagoon, favoring invasive green macroalga Caulerpa over native seagrass. Reducing wastewater infrastructure and stormwater runoff can help promote seagrass recovery.
A team of NTU scientists found a mix of harmful microorganisms, including Labyrinthulaceae and Lyngbya, that can poison marine life. However, they also discovered potential plastic-eating bacteria, such as Muricauda and Halomonas, which could aid in plastic degradation.
A new study estimates that climate change and coastal land usage will result in significant shrinkage of coral habitats, tidal marshes, and mangroves. In contrast, macroalgal beds are expected to remain stable, while seagrass meadows may expand due to increased sunlight penetration.
Researchers say current models fail to project oxygen dynamics in coastal ecosystems with high photosynthetic activity, such as seagrass meadows and coral reefs. Fluctuations in oxygen levels have been observed in systems like the Venice Lagoon and Red Sea coral reefs, where marine species adapt to changing conditions.
An international team reconstructed eelgrass colonisation history, tracing Pacific to Atlantic migrations around 243,000 years ago. Genetic diversity in Atlantic populations is lower due to past ice ages, raising concerns about adapting to a changing climate.
Researchers have discovered that green sea turtles have been returning to the same seagrass meadows along Egypt and West Libya coasts for approximately 3,000 years. This long-term diet has allowed scientists to connect past dietary habits with specific locations, shedding light on human-induced effects on the environment.
A new University of Michigan-led study estimates that Caribbean seagrass meadows provide approximately $255 billion in annual ecosystem services, including vast carbon storage. The study highlights the importance of conserving these threatened ecosystems, which are critical allies in the fight against climate change.
A new Stanford University study models the distribution of seagrass species around the world at two different timepoints in the future, predicting widespread reductions in species diversity and composition under all scenarios. The research highlights the need for more intentional conservation efforts and emphasizes that even the curren...
The study found that widgeongrass has expanded over 150% in the past few decades, outcompeting eelgrass in Chesapeake Bay. This shift has implications for conservation and management of seagrass ecosystems.
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.
Researchers discovered that a Mediterranean marine worm can produce phytosterols de novo, and other animals have the genes to make these plant sterols. This finding reveals that many animal species may benefit from phytosterols' ability to improve blood cholesterol levels.
Study in Florida Bay reveals that turtlegrass can successfully recruit into open bare sediment following die-off events due to biomass partitioning and efficient oxidation. However, recovery of seagrass meadows takes time, with full recovery taking at least a decade.
A new study has shown that seagrass can reduce cliff erosion by up to 70% in sandy sediments due to its root mats binding the sand. The researchers also found that replanting seagrass in areas where it has disappeared is essential for mitigating coastal erosion.
A study by the University of Exeter found that 74% of green turtles foraging in Cyprus feed at Lake Bardawil, an Egyptian lagoon. The number of turtle nests has increased almost tripled since the early 1990s, but their dependence on this single location leaves them vulnerable to changes in conditions.
Despite declining coral, fish, seagrass, and manatees in the Florida Keys, sea urchin populations have remained relatively stable since the 1960s. These marine animals are essential for maintaining healthy environments by cleaning, ventilating, and enriching sediment.
Marine protected areas significantly increase carbon sequestration in seagrass and mangrove ecosystems. Biodiversity and species richness also rise in preserved waters, contributing to food security and human well-being. Full protection is necessary for maximum benefits.
Researchers have discovered that reef halos, visible from satellite imagery, can provide insights into coral reef health globally. These bands of bare seafloor surrounding coral patch reefs are more common and dynamic than expected, with the potential to serve as a window into reef health.
Experts argue that seagrasses are crucial for achieving the UN Sustainable Development goals due to their carbon absorption and biodiversity benefits. The conservation and restoration of seagrass meadows can help tackle climate change and promote biodiversity recovery, making them a nature-based solution for the planet's future.
Scientists discovered that ancient eelgrass migration and Pleistocene ice ages left lasting signatures in their DNA, impacting size, structure, and community composition. Genetic legacy played a stronger role than the present-day environment in determining these traits.
Researchers found that a species of red seaweed uses an isopod crustacean to transfer its male gametes for fertilization, presenting a new class of animal-mediated male gamete movement. This discovery expands the concept of 'pollination' beyond seed plants.
A Cornell University research team used AI to detect eelgrass wasting disease at nearly three dozen sites along the West Coast. The study found that warmer-than-normal water temperatures are associated with eelgrass wasting, regardless of region. Eelgrass is a vital coastal species for fish habitat and biodiversity.
Seagrass meadows are a crucial fishing ground for millions of households in the Indo-Pacific region, providing reliable access to fish and other animals. Research reveals that households with lower income rely more heavily on seagrass due to its proximity and accessibility.
Research at King Abdullah University of Science and Technology finds that 98% of ocean plastic is buried in the seafloor, with coastal habitats like mangroves also significant sink sites. The discovery resolves a mystery and has significant implications for human health and UN Sustainable Goal 14.
Seagrasses release massive amounts of sugar into their soils, storing up to 35 times more carbon than forests. Microbes thrive on the sucrose despite phenolics inhibiting metabolism, and beneficial relationships between plants and rhizosphere microorganisms are found.
Researchers at KAUST used drones to track dye plumes in coastal waters, providing insights into the dispersion of materials in the water column and along the coast. The study demonstrated the potential of unmanned aerial vehicles for monitoring time-sensitive events and capturing rapidly developing processes.
The study found consistent trade-offs between resistance and resilience across four ecosystems: freshwater, saltwater, wetland, and terrestrial. Managing for increased resistance may result in decreased resilience, highlighting the importance of choosing the right management strategy.
Seagrasses form methane from methylated compounds, which persist in plant tissue for decades, contributing to greenhouse gas emissions. Methane production is highly efficient and robust against environmental stresses in seagrass meadows.
A new FAU seagrass nursery aims to restore the Indian River Lagoon's seagrass beds, which have declined by 58% since 2011 due to reduced light and intense phytoplankton blooms. The nursery uses optimized conditions to boost seagrass productivity and promote genetic diversity for future restoration efforts.
Seagrass wasting disease, caused by warming waters, compromises roots and storage sugars, setting up plants for a harder winter. The disease affects eelgrass meadows, vital nutrient stores, and supports herring, salmon, and other marine life.
A study by FAU Harbor Branch reveals that even properly functioning septic systems contribute to nitrogen pollution in the Indian River Lagoon. Groundwater samples showed higher dissolved nutrient concentrations than surface waters, indicating contaminated groundwater as a major source of nutrient loading.
Seagrasses have a symbiotic relationship with bacterial partners that convert nitrogen gas into a form the plants can use, allowing them to thrive in nutrient-poor habitats. This unique partnership enables seagrasses to reach their largest growth during summer months when nutrients are scarce.
Researchers at California Polytechnic State University found that seagrass loss in Morro Bay led to changes in fish species, with increasing numbers of flatfish like speckled sanddab and staghorn sculpin. The study highlights the importance of protecting remaining seagrass habitats to maintain biodiversity.
A new study published in Ecological Applications demonstrates rapid expansion of restored eelgrass plots and recovery of ecosystem functions, providing improved habitat for fish and invertebrates. The study shows that restored plots can recover near or at the level seen in natural eelgrass meadows within a few years.
Researchers at GEOMAR found that seagrass meadows absorb vibrios, reducing their presence by up to 63% compared to non-vegetated areas. This discovery highlights the importance of protecting and restoring these ecosystems to maintain healthy water quality.
A study published in Biological Conservation enlisted the help of 80 citizen scientists to collect 1500 naturally detached Posidonia shoots washed up on the beach after storms. The 'Storm Squad' successfully rehabilitated populations of NSW's endangered Posidonia australis, with most transplanted fragments producing new shoots after on...
A study by Hokkaido University researchers found that seagrass ecosystems are more vulnerable to loss and degradation than mangrove ecosystems. Communities with greater reliance on fisheries and tourism income have higher socio-economic sensitivity due to low adaptive capacity, leading to limited alternatives to fishing. Improving acce...
A recent study published in Environmental Science and Technology found that mangroves and seagrasses capture higher concentrations of microplastics than control sites. The study's lead researcher notes that the accumulation of microplastics in these ecosystems may have negative impacts on animal and plant life.
Seagrasses can recover from extensive losses without human intervention, according to a 20-year study. The study found that remnants of seagrass and multiple species present increased the likelihood for recovery.
A six-year study found seagrass meadows can alleviate low pH conditions for extended periods of time, even at night. The grasses can reduce local acidity by up to 30 percent, benefiting marine life such as sea turtles and fish.
A new study estimates that at least 44% of UK seagrasses have been lost since 1936, with losses accelerating in recent decades. The research highlights the urgent need to protect current seagrass meadows and restore degraded or lost ones to mitigate climate change and support marine biodiversity.