Sea Life News

Sea Life News, current events articles from ScienceDaily, Read scientific research about Sea Life, information about fish and other Sea Life habitats, Marine Biology News Get the latest news

  • Life on the floor of the Arctic Ocean, with rigor and in detail
    on October 17, 2018 at 6:10 pm

    In an extensive and rigorous study of animal life on the Central Arctic Ocean floor, researchers have shown that water depth and food availability influence the species composition, density, and biomass of benthic communities. […]

  • Bacterioplankton: Taking their vitamins
    on October 17, 2018 at 4:44 pm

    New research finds that more bacterioplankton utilize vitamin B1 or B1 precursors from their environment than synthesize their own. The researchers also found that B1 availability can directly limit bacterioplankton growth, which could have larger impacts on aquatic microbial food webs, as well as energy and nutrient exchange. […]

  • Sex or food? Decision-making in single-cell organisms
    on October 16, 2018 at 7:42 pm

    Unicellular diatoms are able to adapt their behavior to different external stimuli based on an evaluation of their own needs. In experiments, Seminavis robusta diatoms directed their orientation either towards nutrient sources or mating partners, depending on the degree of starvation and the need to mate. […]

  • Satellite tech to create more effective, 'true' shark sanctuaries
    on October 16, 2018 at 5:19 pm

    When they first set out to follow grey reef sharks around the Republic of the Marshall Islands (RMI), researchers intended to survey their movement in the protected waters there. What they found was a disturbing development for the Pacific island nation. […]

  • Arctic sea ice decline driving ocean phytoplankton farther north
    on October 15, 2018 at 6:15 pm

    A new study reveals phytoplankton spring blooms in the Arctic Ocean, which were previously nonexistent, are expanding northward at a rate of one degree of latitude per decade. Although blooms did not previously occur in this area, phytoplankton were present in the Arctic's central basin at low biomass. The study also found the primary productivity of the phytoplankton, or the rate at which phytoplankton convert sunlight into chemical energy, is increasing during the spring blooms. […]

  • Extensive trade in fish between Egypt and Canaan 3,500 years ago
    on October 15, 2018 at 2:04 pm

    Some 3,500 years ago, a brisk trade in fish on the shores of the southeastern Mediterranean Sea had already begun. This conclusion follows from the analysis of 100 fish teeth that were found at various archeological sites in what is now Israel. […]

  • Sea snail shells dissolve in increasingly acidified oceans
    on October 15, 2018 at 12:46 pm

    Shelled marine creatures living in increasingly acidified oceans face a fight for survival as the impacts of climate change spread, a new study suggests. […]

  • Did mosasaurs hunt like killer whales?
    on October 12, 2018 at 7:26 pm

    Researchers have examined the youngest-ever specimen of tylosaur ever found. Like orcas, mosasaurs might have used their bony noses to strike prey. […]

  • Shrimp talent quest finds a winner
    on October 11, 2018 at 2:36 pm

    Shrimp help keep fish clean -- and scientists have identified the 'cleaner shrimp' with the most talent for reducing parasites and chemical use in farmed fish. […]

  • New study helps explain recent scarcity of Bay nettles
    on October 10, 2018 at 8:47 pm

    A new, long-term study of how environmental conditions affect the abundance and distribution of jellyfish in the nation's largest estuary helps explain the widely reported scarcity of sea nettles within Chesapeake Bay during the past few months and raises concerns about how a long-term continuation of this trend might harm Bay fisheries as climate continues to warm. […]

  • Evolutionary 'arms race' -- how dolphins and whales fight disease threats
    on October 10, 2018 at 1:36 pm

    A groundbreaking study reveals how dolphins, whales and other cetaceans compete for survival in an evolutionary 'arms race' with changing pathogenic threats like mercury and brevotoxin (e.g. Red Tide). Researchers show that cetaceans use several strategies for success in this race. They have developed tools to help wildlife managers and health professionals assess disease risk from the perspective of how individual animals are engineered to recognize the molecules of microorganisms in the environment and launch an immune response. […]

  • Polar bears gorged on whales to survive past warm periods; won't suffice as climate warms
    on October 9, 2018 at 9:56 pm

    A new study found that while dead whales are valuable sources of fat and protein for some polar bears, this resource will likely not be enough to sustain most bear populations in the future when the Arctic becomes ice-free in summers. […]

  • 'Sentinels of the sea' at risk from changing climate
    on October 9, 2018 at 5:59 pm

    Climate change's effect on coastal ecosystems is very likely to increase mortality risks of adult oyster populations in the next 20 years. […]

  • A pheromone-sensing gene that predates land-dwelling vertebrates
    on October 9, 2018 at 3:36 pm

    Scientists have discovered a gene that appears to play a vital role in pheromone sensing. The gene is conserved across fish and mammals and over 400 million years of vertebrate evolution, indicating that the pheromone sensing system is much more ancient than previously believed. […]

  • Increase in plastics waste reaching remote South Atlantic islands
    on October 9, 2018 at 2:25 pm

    The amount of plastic washing up onto the shores of remote South Atlantic islands is 10 times greater than it was a decade ago, according to new research. Scientists investigating plastics in seas surrounding the remote British Overseas Territories discovered they are invading these unique biologically-rich regions. This includes areas that are established or proposed Marine Protected Areas (MPAs). […]

  • High-res data offer most detailed look yet at trawl fishing footprint around the world
    on October 8, 2018 at 10:34 pm

    A new analysis that uses high-resolution data for 24 ocean regions in Africa, Europe, North and South America and Australasia shows that 14 percent of the overall seafloor shallower than 1,000 meters (3,280 feet) is trawled. The analysis shows that the footprint of bottom-trawl fishing on continental shelves and slopes across the world's oceans often has been substantially overestimated. […]

  • Land-locked Atlantic salmon also use magnetic field to navigate
    on October 8, 2018 at 10:33 pm

    A new study shows that Atlantic salmon use the Earth's magnetic field as a navigational tool -- much like their cousins, Pacific salmon -- and don't lose that ability through several generations of fish even after they have been transplanted into a land-locked lake. […]

  • Getting a grip on the slow but unique evolution of sharks
    on October 8, 2018 at 3:46 pm

    Scientists have decoded the whole genomes of two shark species for the first time and improved the whale shark genome sequences released previously. By analyzing the genomes and comparing them with those of other vertebrate species, they have constructed an overview of their unique life histories and evolutionary paths. […]

  • A copper bullet for tuberculosis
    on October 4, 2018 at 2:00 pm

    In a new study, chemists report a new antibiotic that can find and kill tuberculosis bacteria where they hide. […]

  • Green algae, white noise: Gas bubbles produced during photosynthesis 'ring' upon release
    on October 3, 2018 at 6:29 pm

    Gas bubbles released by marine algae during photosynthesis produce sound whose intensity correlates with the degree of algal cover on coral reefs, according to a new study. […]

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