Articles tagged with Marine Plants
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Researchers analyzed satellite data over two decades to understand how climate change impacts Red Sea marine ecosystem. Phytoplankton blooms show unique annual cycles, with four specific bioregions in the region experiencing different seasonal patterns.
Coastal organisms thrive on floating plastic debris in the North Pacific Subtropical Gyre, expanding their biogeography. The discovery reveals that plastic pollution is providing a habitat for coastal species to survive and even thrive in the open ocean.
A long-term study in Elkhorn Slough found that superabundant crabs weaken tidal creek banks, reducing marsh plant growth and increasing erosion. Reducing crab abundance led to increased salt marsh vegetation growth and enhanced sediment density.
A team of scientists has discovered a 120-million-year fossil record in the Yukon wilderness that illuminates a critical period in Earth's history. The find reveals a long-term shift in oxygen levels in the oceans, which likely drove the rapid diversification of complex life during the Paleozoic era.
A preserved ancient bald cypress forest was discovered underwater in the northern Gulf of Mexico, providing clues about the region's climate history. The forest is estimated to be between 42,000 and 74,000 years old, offering insights into the rapid changes in sea levels and climate that occurred during the last Ice Age.
A recent study reveals that warming and cooling of the Pacific Ocean, driven by solar radiation changes, impacted moisture availability in Africa. This climate process may have shaped the distribution of plant and animal species, creating favorable conditions for resource-rich regions where modern humans emerged.
A new study reveals diatoms primarily use one pathway to concentrate CO2, continuing to operate at higher CO2 concentrations. The team found that marine diatoms are highly efficient in fixing atmospheric CO2, fixing nearly one-fifth of the global carbon fixation on earth.
Scientists discovered that surviving algae adapted a unique behavior called mixotrophy, allowing them to thrive in the aftermath of an asteroid impact. This adaptation enabled them to eat other organisms while still utilizing photosynthesis to produce food.
A global analysis of over 300 marine species spanning more than 100 years shows that mammals, plankton, fish, plants, and seabirds are changing in abundance as oceans warm. Some marine species are benefiting from climate change, while others are declining due to warming temperatures.
A study published in Nature Plants reveals that three genes are shared exclusively by plants forming intracellular symbiosis with different microbial partners. This finding demonstrates a conserved genetic program underlying diverse types of symbioses, allowing plants to access additional nutrients.
A new study describes a 480-million-year-old fossil named Athenacrinus broweri, which helps rewrite the family tree of sea lilies. The fossil's arm structure reveals that modern sea lilies evolved from ancient ancestors with plates in their bodies similar to those found in earliest crinoid arms.
A study found that a perfect storm of events led to the decline of California's bull kelp forests, resulting in the loss of over 90% of kelp and 96% of red abalone. Purple sea urchin populations exploded, devouring all available food sources. However, researchers are exploring urchin ranching as a potential solution to restore kelp beds.
A new study reveals that coastal proximity, rain and prevailing wind direction influence the distribution of marine sulfur on land. Plants in coastal settings utilize marine-derived sulfur, which is affected by human activities such as oil refineries and vehicles.
Researchers analyzed paper mulberry genetic samples to study prehistoric human movements in Oceania. The analysis revealed a clear genetic structure and dispersion patterns that match archaeological and linguistic data, providing insights into past human interactions and population dispersal.
A new study using Argo floats has gathered unprecedented data on the phytoplankton community beneath the Greenland Sea ice. The research found that half of ocean energy production occurs beneath the sea ice in late winter and early spring, with the other half occurring at the edge of the ice in spring.
Researchers at Bigelow Laboratory for Ocean Sciences have developed a statistical method to quantify important ocean measurements from satellite data. This breakthrough enables scientists to calculate concentrations of key particles in the water column, providing insights into ocean dynamics and biogeochemistry.
The study reveals that similar isotopic signatures exist for many biological processes, including those difficult to observe with current tools. This finding could enable the assessment of ocean productivity using stable oxygen isotopes.
Research found oxygen-depleted conditions and hydrogen sulfide poisoning in the Panthalassic Ocean during the end-Triassic mass extinction. The study provides direct evidence of anoxic and euxinic conditions affecting food chains, highlighting the potential consequences of rising CO2 levels on marine ecosystems.
A massive spring plankton bloom in the North Atlantic Ocean is transported downward by ocean eddies, releasing oxygen and absorbing carbon dioxide. This 'biological pump' helps the oceans absorb CO2 from the atmosphere, mitigating climate change.
ORCA will study microscopic phytoplankton and their impact on the carbon cycle, measuring chlorophyll concentrations and distinguishing between types of phytoplankton. The instrument's hyperspectral capability offers a range of bands to refine ocean observations.
A new study reveals that Pacific wind patterns behind California's drought also led to a significant drop in small plant-like organisms in the northeastern Pacific Ocean, potentially affecting marine life. Meanwhile, researchers warn of worsening US air quality due to climate change, particularly ozone pollution fueled by nitrogen oxid...
Scientists develop sustainable paint ingredient from plants that repel barnacles without killing them, set to reduce fuel use by 40% and minimize environmental impact
The study highlights the ecological benefits of large carnivores, including controlling herbivores, mitigating global warming, and enhancing biodiversity. Without these species, ecosystems may collapse, leading to reduced plant diversity, biomass, and productivity, as well as increased greenhouse gas emissions.
Researchers have uncovered a rare fossil called Kulindroplax, the missing link between two mollusc groups, and modelled it in a 3D computer animation. The study provides unprecedented detail, enabling scientists to understand the relationship between aplacophorans and chitons.
A new trigger for the North Atlantic plankton bloom has been discovered, revealing that swirling currents of seawater sustain phytoplankton in shallower waters. This phenomenon is crucial to the ocean's carbon cycle, absorbing vast amounts of carbon dioxide and emitting oxygen.
Researchers found that organic matter from tree trunks, leaves, and kukui nuts supports abundant macro-invertebrates, which serve as food for bottom fish species. The 'canyon effect' is obliterated at intermediate depths due to oxygen minimum zones.
A new study analyzes radioactivity from the Fukushima nuclear power plants, revealing high levels of cesium-137 and iodine-131. While the releases are not a direct threat to humans or marine life, they raise concerns about radiation accumulation in marine sediments.
A new study analyzes radioactivity discharged from the Fukushima Dai-Ichi nuclear power plants and finds that while levels are high, they pose no direct exposure threat to humans or marine life. However, accumulated radionuclides in marine sediments remain poorly understood.
Marine life may need to relocate faster than land species due to climate warming, posing a significant conservation challenge. The rate at which marine life relocates depends on the distance it needs to travel to reach its preferred temperature conditions, with many areas having relatively little temperature variation.
A study published in Science reveals that animal and plant populations need to move at similar rates to keep up with climate change effects in the ocean and on land. The analysis shows that marine life would need to relocate fast, even in biodiversity hot spots like the coral triangle region.
Researchers reveal new insight into global photosynthesis, estimating a 25% increase in the chemical process governing CO2 absorption and release. The study provides a benchmark for models simulating carbon cycling through plants.
A new study reveals that Antarctic krill feed on iron-rich fragments from the sea floor, releasing it into the water and stimulating phytoplankton growth. This process enhances the ocean's natural storage of carbon dioxide, with implications for managing commercial krill fisheries.
Researchers have developed a seawater/mineral carbonate gas scrubber that removes up to 97% of CO2, converting it to dissolved calcium bicarbonate. This can help mitigate ocean acidification and its effects on marine life, such as coral reefs.
Researchers studied organic carbon-rich sediments from an ancient seabed to learn about a devastating event when oxygen levels in the oceans dropped so low that one-third of marine life died. The studies found that volcanic activity triggered a biogeochemical cascade, leading to a decrease in atmospheric carbon dioxide levels.
A team of researchers discovered evidence suggesting the Paleoasian Ocean closed at the end of the Permian period, about 251 million years ago. The study found mixed flora in Late Permian fossils, indicating plants from China and Siberia coexisted before the ocean disappeared.
NOAA will participate in a private research expedition to study the impact of the USS Monitor wreck on local marine life. The survey will examine species such as fish, crustaceans, and coral, as well as lionfish, which may be harming the site's ecosystem.
Researchers have analyzed ocean plant health using a NASA satellite, detecting red light emitted by phytoplankton and assessing their productivity. The findings provide insights into the impact of climate change on ocean ecosystems and can help track long-term trends.
A University of Iowa biologist is studying how picoeukaryotes, tiny ocean plants, adapt to changing environments in response to climate change. The research found that despite sharing similar morphology, these organisms have distinct gene pools and unique genetic features that allow them to thrive in different ocean regions.
Researchers found that Saharan dust storms provide essential iron minerals, enabling plants to thrive in nutrient-poor regions. This discovery sheds light on how the Atlantic Ocean supports plant growth despite being referred to as an 'ocean desert',
Research suggests that healthy adult haddock can produce more eggs of higher quality, leading to larger and better-conditioned offspring. This finding could significantly impact haddock stocks on Georges Bank.
A team of scientists found that human-caused nitrogen compounds entering the ocean may remove up to 10% of carbon dioxide from the atmosphere. However, this gain is offset by the release of nitrous oxide, a powerful greenhouse gas.
A new study using seafloor cores has found a strong correlation between dust and past climates, suggesting that atmospheric moisture and dust move in tandem with temperature changes. This discovery may inform current ideas to seed oceans with iron-rich dust to mitigate global warming.
Research at MIT suggests that aquatic plants in rivers can help dampen storm surge, lower nutrient levels, and promote sediment accumulation. By understanding how water flows through plant canopies, ecologists can determine the optimal vegetation patch length and planting density for river restoration.
Sulfur and nitrogen emissions from power plants and agricultural activities significantly impact coastal ocean chemistry, reducing its ability to store carbon and harming marine life. The study found that these emissions can alter water chemistry by 10-50% more than acidification caused by carbon dioxide.
Vitamin B12 plays a vital role in marine plant growth, influencing the ocean food web and climate. Its presence affects phytoplankton blooms and carbon cycling in the ocean.
A recent study found that carbon dioxide consumed by animals and bacteria in the twilight zone is often recycled back into the atmosphere, rather than being stored in the deep ocean. This discovery adds complexity to proposals for mitigating climate change through ocean fertilization.
A new study published in Science sheds light on the dim layer of the ocean known as the twilight zone, which affects the ocean's ability to absorb and store carbon dioxide. The research found that only a small percentage of carbon transported to the depths is stored, with most being recycled in the twilight zone.
A new ocean model at MIT captures the diversity of underwater forests, simulating the growth and population patterns of microscopic plants that produce half the oxygen we breathe. The model's approach reflects natural selection, allowing for a more accurate representation of real-world ecosystems.
A NASA study reveals that climate warming leads to a decline in ocean's primary food supply, phytoplankton, which is responsible for photosynthesis. This reduction affects fishery yields, marine bird populations, and carbon dioxide removal from the atmosphere.
New satellite data show that ocean warming is reducing phytoplankton growth, imperiling ocean fisheries and marine life. Phytoplankton are responsible for about the same amount of photosynthesis as all plants on land combined, making their decline a significant threat to the food chain.
Scientists determined that nitrogen is the primary element missing for algae growth in the northern tropical Pacific, while iron was lacking everywhere else. The 'iron-effect' decreases carbon ocean plant photosynthesis estimates by two billion tons, allowing for more accurate carbon movement modeling and resource management.
A massive marsh planting project is set to begin in coastal Alabama and Mississippi, aiming to restore salt marshes and their ecosystem services. The project, led by Dr. Cebrian, will focus on restoring black needlerush and other plant species, and will involve the coordinated efforts of researchers, resource managers, and volunteers.
Mangroves are a significant source of dissolved organic carbon in the ocean, accounting for nearly triple the estimated amount previously thought to be released from smaller-scale estimates. The mangrove root system slows down the release of carbon-rich leaf litter into shallow sediment, where it is then leached into coastal waters.
Phytoplankton amounts have increased globally by over 4% along coastal regions, while declines were observed in mid-ocean gyres. This shift may indicate changes in the biology of oceans, particularly in coast regions, and has implications for ocean ecosystems and climate change.
Researchers investigate iron's impact on phytoplankton growth in the sub-Arctic Pacific, a crucial nutrient for ocean life. The findings could inform strategies to mitigate global warming by addressing the ocean's ecological dynamics.
Researchers have developed a new method to estimate global ocean productivity by analyzing the amount of carbon in phytoplankton, using satellite data and ocean color. This approach may lead to significant revisions in estimates of ocean carbon absorption and new understanding of marine ecosystems.
A study by Andrew Bakun and Scarla Weeks found that overfishing sardines can prevent phytoplankton population explosions, which release methane and hydrogen sulfide. The authors warn that areas around California and Africa are at risk of a tipping point, where upwelling processes intensify climate change.
Hurricanes stimulate phytoplankton growth, leading to increased chlorophyll levels and carbon dioxide absorption. Bigger storms cause larger blooms, affecting the upper ocean's ecology and potentially influencing climate change.
Researchers found that increased Labrador water transport due to Gulf Stream movement actually decreases primary productivity, contrary to expected outcomes. This phenomenon may be linked to nutrient supply and influence large-scale climatic effects on the carbon cycle.
Researchers from Rutgers University will follow the flow of a red dye on a research vessel for about five days to study the Hudson River Plume. The study aims to gain knowledge about where the plume goes and what it contains, with potential applications in predicting algae blooms and sewage disposal decisions.