Sea Life News

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  • Sharp increase in Ningaloo whale shark injuries might be due to boat encounters
    on January 23, 2020 at 8:25 pm

    Almost one-fifth of the whale sharks (Rhincodon typus) in Western Australia's Ningaloo Reef Marine Park show major scarring or fin amputations, with the number of injured animals increasing in recent years, new research reveals.

  • Bending with the wind, coral spawning linked to ocean environment
    on January 23, 2020 at 2:58 pm

    A research team has utilized modeling analysis to indicate that environmental factors act as a determinant in the timing of mass spawning.

  • How moon jellyfish get about
    on January 23, 2020 at 2:58 pm

    With their translucent bells, moon jellyfish (Aurelia aurita) move around the oceans in a very efficient way. Scientists have now used a mathematical model to investigate how these cnidarians manage to use their neural networks to control their locomotion even when they are injured. The results may also contribute to the optimization of underwater robots.

  • Turtle tracking reveals key feeding grounds
    on January 23, 2020 at 2:58 pm

    Loggerhead turtles feed in the same places year after year - meaning key locations should be protected, researchers say.

  • Deep diving scientists discover bubbling CO2 hotspot
    on January 22, 2020 at 8:43 pm

    Hydrologists diving off the coast of the Philippines have discovered volcanic seeps with some of the highest natural levels of C02 ever recorded. The scientists were working in Verde Island Passage, one of the most diverse marine ecosystems in the world and is home to thriving coral reefs.

  • Most rehabilitating sea turtles with infectious tumors don't survive
    on January 22, 2020 at 6:53 pm

    Fibropapillomatosis (FP) is the most significant infectious disease affecting sea turtle populations worldwide. FB leads to tumors on the turtles' eyes, flippers and internal organs and is widespread in warmer climates like Florida. A large-scale study evaluated tumor score, removal and regrowth in rehabilitating green sea turtles with FP in the southeastern US from 2009 to 2017, and found that 75 percent did not survive following admission into a rehabilitation facility, irrespective of whether or not tumor regrowth occurred after surgery.

  • Deep-sea osmolyte makes biomolecular machines heat-tolerant
    on January 22, 2020 at 4:04 pm

    Researchers have discovered a method to control biomolecular machines over a wide temperature range using deep-sea osmolyte trimethylamine N-oxide (TMAO). This finding could open a new dimension in the application of artificial machines fabricated from biomolecular motors and other proteins.

  • Walking sharks discovered in the tropics
    on January 21, 2020 at 6:33 pm

    Four new species of tropical sharks that use their fins to walk are causing a stir in waters off northern Australia and New Guinea.

  • Warmer and acidified oceans can lead to 'hidden' changes in species behavior
    on January 21, 2020 at 4:30 pm

    Scientists have shown that the peppery furrow shell (Scrobicularia plana) makes considerable changes to its feeding habits when faced with warmer and more acidified oceans.

  • Corals' partnership with microalgae helps in stressful times but there's a trade-off
    on January 21, 2020 at 4:29 pm

    In warm and bright shallow waters the Hawaiian rice coral (Montipora capitata) hosts more heat-tolerant symbiotic microalgae in their tissues compared to corals in deeper waters. Researchers suggest that while this can help corals weather a heat wave, it may have a price--lower nutrition when the heat wave has passed and seawater temperatures cool down.

  • Life aquatic for many spider species
    on January 21, 2020 at 4:29 pm

    Researchers have found that nearly one fifth of all spider families are associated with saltwater or freshwater aquatic habitats. Their findings address the common misconception that all spiders dwell on land, and reveal surprising evolutionary pathways of this group from a land-based existence back to a water-based existence.

  • Not all of nature's layered structures are tough as animal shells and antlers
    on January 17, 2020 at 4:08 pm

    Engineers looking to nature for inspiration have long assumed that layered structures like those found in mollusk shells enhance a material's toughness, but a study shows that's not always the case. The findings may help engineers avoid 'naive biomimicry, the researchers say.

  • Mobile protected areas needed to protect biodiversity in the high seas
    on January 16, 2020 at 7:17 pm

    As the United Nations rewrites the laws of the high seas, the new document should anticipate emerging technologies that allow protected areas to move as animals migrate or adapt to climate change.

  • Fossil is the oldest-known scorpion
    on January 16, 2020 at 5:19 pm

    Scientists studying fossils collected 35 years ago have identified them as the oldest-known scorpion species, a prehistoric animal from about 437 million years ago. The researchers found that the animal likely had the capacity to breathe in both ancient oceans and on land.

  • Cyanobacteria in water and on land identified as source of methane
    on January 16, 2020 at 4:25 pm

    Cyanobacteria, also known as blue-green algae, are among the most common organisms on Earth. A research team has now shown for the first time that Cyanobacteria produce relevant amounts of methane in oceans, inland waters and on land. Due to climate change, ''Cyanobacteria blooms'' increase in frequency and extent, amplifying the release of methane from inland waters and oceans to the atmosphere.

  • Discovery reveals how remora fishes know when to hitch a ride aboard their hosts
    on January 15, 2020 at 10:01 pm

    Researchers have detailed the discovery of a tactile-sensory system stowed within the suction disc of remora, believed to enable the fish to acutely sense contact pressure with host surfaces and gauge ocean forces in order to determine when to initiate their attachment, as well as adjust their hold on hosts while traversing long distances.

  • 'The blob,' food supply squeeze to blame for largest seabird die-off
    on January 15, 2020 at 7:05 pm

    When nearly one million common murres died at sea and washed ashore from California to Alaska in 2015 and 2016, it was unprecedented -- both for murres, and across all bird species worldwide. Scientists blame an unexpected squeeze on the ecosystem's food supply, brought on by a severe and long-lasting marine heat wave known as 'the blob.'

  • Deep-sea mining's impact on microbes
    on January 14, 2020 at 9:00 pm

    The essential roles that microbes play in deep-sea ecosystems are at risk from the potential environmental impacts of mining, a new article reports. The study reviews what is known about microbes in these environments and assesses how mining could impact their important environmental roles.

  • Robotic gripping mechanism mimics how sea anemones catch prey
    on January 14, 2020 at 5:35 pm

    Researchers demonstrated a robotic gripping mechanism that mimics how a sea anemone catches its prey. The bionic torus captures and releases objects by crimping its skin. The grasper not only is relatively cheap and easy to produce but also can grab a variety of objects of different sizes, shapes, weights and materials.

  • Egg trading between hermaphroditic fish: Why would you give when you can just take?
    on January 14, 2020 at 3:17 pm

    The sex life of hermaphroditic animals is determined by one fundamental question: Who assumes the female role and produces the costly eggs? Hamlets avoid this dilemma by engaging in reciprocal egg trading. Scientists have now used microeconomic models to analyze the circumstances required for this complex system of trading to work.

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