Marine Biology

Marine Biology News -- ScienceDaily Marine Biology News. Read scientific research on marine animals and their aquatic habitats. From plankton to whales, you will find it all here.

  • No-fishing zones help endangered penguins
    on January 17, 2018 at 3:25 am

    Small no-fishing zones around colonies of African penguins can help this struggling species, new research shows. […]

  • Drones confirm importance of Costa Rican waters for sea turtles
    on January 16, 2018 at 8:12 pm

    A new drone-enabled population survey -- the first ever on sea turtles -- shows that larger-than-anticipated numbers of turtles aggregate in waters off Costa Rica's Ostional National Wildlife Refuge. Scientists estimate turtle densities may reach up to 2,086 animals per square kilometer. The study underscores the importance of the Ostional habitat; it also confirms that drones are a reliable tool for surveying sea turtle abundance. […]

  • Surfers three times more likely to have antibiotic-resistant bacteria in guts
    on January 15, 2018 at 2:42 pm

    Scientists compared fecal samples from surfers and non-surfers to assess whether the surfers' guts contained E. coli bacteria that were able to grow in the presence of the antibiotic cefotaxime. Cefotaxime has previously been prescribed to kill off these bacteria, but some have acquired genes that enable them to survive this treatment. The study found that 13 of 143 (9 percent) of surfers were colonized by these resistant bacteria, compared to just four of 130 (3 percent) of non-surfers swabbed. […]

  • Robots aid better understanding of phytoplankton blooms
    on January 15, 2018 at 2:42 pm

    Phytoplankton blooms are one of the most important factors contributing to the efficiency of the carbon pump in the North Atlantic Ocean. To better understand this phenomenon, researchers have developed a new class of robots able to collect data in the ocean throughout the year. Using these unparalleled data, the researchers have identified the starting point for the explosive spring phytoplankton bloom. […]

  • New application for acoustics helps estimate marine life populations
    on January 15, 2018 at 2:42 pm

    Researchers have for the first time have used hydroacoustics as a method for comparing the abundance of fishes within and outside marine protected areas (MPAs). […]

  • Tagged tiger shark proving unstoppable
    on January 11, 2018 at 9:30 pm

    For more than a decade, researchers have been tagging and tracking sharks in order to study their migratory patterns and more. One tiger shark - Andy - is now the longest-ever tracked tiger shark, providing years worth of data for researchers. […]

  • Rising CO2 is causing trouble in freshwaters too, study suggests
    on January 11, 2018 at 7:17 pm

    As carbon dioxide (CO2) levels in the atmosphere rise, more CO2 gets absorbed into seawater. As a result, the world's oceans have grown more acidic over time, causing a wide range of well-documented problems for marine animals and ecosystems. Now, researchers present some of the first evidence that similar things are happening in freshwaters too. […]

  • Rising temperatures turning major sea turtle population female
    on January 11, 2018 at 3:14 pm

    Scientists have used a new research approach to show that warming temperatures are turning one of the world's largest sea turtle colonies almost entirely female, running the risk that the colony cannot sustain itself in coming decades, newly published research concludes. […]

  • Turkey-sized dinosaur from Australia preserved in an ancient log-jam
    on January 11, 2018 at 1:49 pm

    The partial skeleton of a new species of turkey-sized herbivorous dinosaur has been discovered in 113-million-year-old rocks in southeastern Australia. The fossilized tail and foot bones give new insight into the diversity of small, bipedal herbivorous dinosaurs called ornithopods that roamed the great rift valley that once existed between Australia and Antarctica. […]

  • Dramatic decline in genetic diversity of Northwest salmon
    on January 10, 2018 at 7:13 pm

    Columbia River Chinook salmon have lost as much as two-thirds of their genetic diversity, researchers have found. The researchers reached this conclusion after extracting DNA from scores of bone samples -- some harvested as many as 7,000 years ago -- and comparing them to the DNA of Chinook currently swimming in the Snake and Columbia rivers. The work is 'the first direct measure of reduced genetic diversity for Chinook salmon from the ancient to the contemporary period.' […]

  • Body size of marine plankton, currents keys to dispersal in ocean
    on January 10, 2018 at 6:23 pm

    A new international study found that the size of plankton, and the strength and direction of currents, are key to how they are dispersed in the ocean -- much more so than physical conditions including differences in temperature, salinity and nutrient availability. […]

  • Strong support for ocean protection: Study
    on January 10, 2018 at 3:10 pm

    People around the world strongly support ocean conservation measures, according to a new study of public perceptions of marine threats and protection. […]

  • New depth limit for deep-sea marine burrows
    on January 10, 2018 at 1:05 pm

    Scientists have found fossil evidence of deep-sea marine life burrowing up to eight meters below the seabed -- four times the previously observed depth for modern deep-sea life. […]

  • Climate change drives collapse in marine food webs
    on January 9, 2018 at 8:09 pm

    A new study has found that levels of commercial fish stocks could be harmed as rising sea temperatures affect their source of food. […]

  • Deep sea creatures provide a guiding light in the quest to develop cancer therapies
    on January 9, 2018 at 6:27 pm

    Scientists use enzymes responsible for marine animal bioluminescence to help researchers test whether cancer immunotherapies work. […]

  • Mass extinctions remove species but not ecological variety
    on January 9, 2018 at 5:49 pm

    Though mass extinctions wiped out staggeringly high numbers of species, they barely touched the overall 'functional' diversity -- how each species makes a living, be it filtering phytoplankton or eating small crustaceans, burrowing or clamping onto rocks. […]

  • Ocean acidification means major changes for California mussels
    on January 5, 2018 at 6:52 pm

    Accelerating ocean acidification could be transforming the fundamental structure of California mussel shells, according to a new report. […]

  • The window for saving the world's coral reefs is rapidly closing
    on January 4, 2018 at 8:35 pm

    For the first time, an international team of researchers has measured the escalating rate of coral bleaching at locations throughout the tropics over the past four decades. The study documents a dramatic shortening of the gap between pairs of bleaching events, threatening the future existence of these iconic ecosystems and the livelihoods of many millions of people. […]

  • The ocean is losing its breath -- here's the global scope
    on January 4, 2018 at 8:35 pm

    In the past 50 years, the amount of water in the open ocean with zero oxygen has gone up more than fourfold. In coastal water bodies, including estuaries and seas, low-oxygen sites have increased more than tenfold since 1950. Scientists expect oxygen to continue dropping even outside these zones as Earth warms. […]

  • Three new species of zoantharians described from coral reefs across the Indo-Pacific
    on January 4, 2018 at 5:03 pm

    Three new species of zoantharians -- relatives of the better-known hard corals and sea anemones - were discovered in southern Japan. One of them, Antipathozoanthus remengesaui, was named after the current president of Palau, Tommy Remengesau, in honor of his and the nation's support to the authors and marine conservation as a whole. The species can be found widely across the Indo-Pacific. […]

  • The Caribbean is stressed out
    on December 28, 2017 at 10:06 pm

    Forty percent of the world's 7.6 billion people live in coastal cities and towns. A team of marine biologists just released 25 years of data about the health of Caribbean coasts. The study provides new insights into the influence of both local and global stressors in the basin, and some hope that the observed changes can be reversed by local environmental management. […]

  • Conserving coral communities
    on December 27, 2017 at 7:59 pm

    For years, people have sought to stop the loss of coral reefs by transplanting corals grown in underwater 'nurseries' to damaged reefs, but little work had been done to evaluate how effective such efforts were. A new study, however, suggests those projects have a positive impact on local fish populations, both in the short term and over time. […]

  • Scientists get early look at hurricane damage to Caribbean coral reefs
    on December 27, 2017 at 12:02 am

    Coral reefs off St. John, part of the US Virgin Islands, suffered severe injury during the storms, say the scientists who traveled there in late November to assess the damage -- the first step in understanding the reefs' recovery. […]

  • New species of marine spider emerges at low tide to remind scientists of Bob Marley
    on December 23, 2017 at 6:48 pm

    It was 02:00h on 11 January 2009 when the sea along the coastline of Australia's 'Sunshine State' of Queensland receded to such an extent that it exposed a population of water-adapted spiders. The observant researchers, who would later describe this population as a species new to science, were quick to associate their emergence with Bob Marley's song 'High Tide or Low Tide'. […]

  • Tiny polyps save corals from predators and disease
    on December 22, 2017 at 2:25 pm

    Corals may have unexpected allies in improving their health and resilience. […]

  • Taking stock of a thorny issue
    on December 22, 2017 at 2:03 pm

    A new book exploring the best scientific research on preventing coral-eating Crown-Of-Thorns Starfish (COTS) outbreaks, is expected to become a critical resource for informing management of these outbreaks across the Indo-Pacific. […]

  • Ancient dolphin species Urkudelphis chawpipacha discovered in Ecuador
    on December 22, 2017 at 2:03 pm

    An extinct dolphin species likely from the Oligocene has been discovered. The fossil is one of the few fossil dolphins from the equator, and is a reminder that Oligocene cetaceans may have ranged widely in tropical waters. […]

  • A 508-million-year-old sea predator with a 'jackknife' head
    on December 22, 2017 at 2:03 pm

    Paleontologists have revisited a tiny yet fierce ancient sea creature called Habelia optata that has confounded scientists since it was discovered more than a century ago. Analysis of new fossil specimens suggest it was a close relative of the ancestor of all chelicerates, a sub-group of arthropods living today named for appendages called chelicerae in front of the mouth used to cut food. […]

  • West African dolphin now listed as one of Africa's rarest mammals
    on December 22, 2017 at 2:03 pm

    A group of scientists now considers a little-known dolphin that only lives along the Atlantic coasts of Western Africa to be among the continent's most endangered mammals, a list that includes widely recognized species such as gorillas, African wild dogs, and black rhinos. […]

  • Boat traffic threatens the survival of Panama's Bocas Del Toro dolphins
    on December 22, 2017 at 2:03 pm

    Bottlenose dolphins in Panama's Bocas Del Toro Archipelago should be designated as endangered say the authors of a new study. Biologists have discovered that the roughly 80 dolphins in the archipelago do not interbreed with other Caribbean bottlenose dolphins. Their low numbers jeopardize their long-term survival, which is threatened by increasing local boat traffic that killed at least seven dolphins in 2012. […]