Sea Life

Sea Life News -- ScienceDaily Current events articles in marine biology and science. From beached whales to coral reef bleaching, learn what is happening in today's oceans.

  • New gene catalog of ocean microbiome reveals surprises
    on August 17, 2017 at 8:20 pm

    Oceanographers report completing the largest single-site microbiome gene catalog constructed to date. With this new information, the team discovered nutrient limitation is a central driver in the evolution of ocean microbe genomes. […]

  • First successful wild whale shark health assessments performed
    on August 17, 2017 at 3:09 pm

    For the first time ever, scientists successfully performed health assessments, including collecting blood and biological samples, taking measurements and attaching satellite tracking tags, to a population of wild whale sharks -- the world's largest fish, classified as 'endangered' since 2016. The research advancement, which occurred in Indonesia's remote Cendrawasih Bay, has significant implications for unlocking the mysteries surrounding the overall health of whale sharks -- including the potential impacts of tourism on their health. […]

  • Deafness in farmed salmon linked to accelerated growth
    on August 16, 2017 at 10:13 pm

    Half of the world's farmed salmon are part deaf due to accelerated growth rates in aquaculture, new research has found. The results now offer a better understanding of the effects of a common inner ear deformity, and some specific actions to tackle this welfare issue. […]

  • Changing tides: Lake Michigan could best support lake trout and steelhead
    on August 16, 2017 at 8:06 pm

    Invasive mussels and less nutrients from tributaries have altered the Lake Michigan ecosystem, making it more conducive to the stocking of lake trout and steelhead than Chinook salmon, according to a recent US Geological Survey and Michigan State University study. […]

  • Larvaceans provide a pathway for transporting microplastics into deep-sea food webs
    on August 16, 2017 at 6:51 pm

    A new article shows that filter-feeding animals called giant larvaceans can collect and consume microplastic particles, potentially carrying microplastics to the deep seafloor. […]

  • Mystery of how first animals appeared on Earth solved
    on August 16, 2017 at 5:47 pm

    Research has solved the mystery of how the first animals appeared on Earth, a pivotal moment for the planet without which humans would not exist. […]

  • Modern genetic sequencing tools give clearer picture of how corals are related
    on August 16, 2017 at 5:46 pm

    As corals face threats from ocean warming, a new study uses the latest genetic-sequencing tools to help unravel the relationships between three similar-looking corals. […]

  • Fish database could help eliminate the ultimate bait and switch
    on August 16, 2017 at 3:27 pm

    Fish fraud, the misrepresentation of cheaper fish as more expensive ones, is a rampant problem worldwide. Now scientists report that they are making strides toward the development of a protein database capable of definitively identifying fish species. This information could help nab imposters of salmon, tuna and other popular fish before they reach people's plates. […]

  • Climate change projected to significantly increase harmful algal blooms in US freshwaters
    on August 15, 2017 at 4:04 pm

    Harmful algal blooms known to pose risks to human and environmental health in large freshwater reservoirs and lakes are projected to increase because of climate change. […]

  • Mercury is altering gene expression
    on August 15, 2017 at 1:50 pm

    Mercury causes severe neurological disorders in people who have consumed highly contaminated fish. Whereas we know about the element's extreme toxicity, what happens further down the food chain, all the way down to those microalgae that are the first level and the gateway for mercury? By employing molecular biology tools, a team of researchers measured the way mercury affects the gene expression of algae, even when its concentration in water is very low. […]

  • Tiny fraction of oceans could meet world's fish demand
    on August 14, 2017 at 4:53 pm

    Covering 70 percent of Earth's surface, the world's oceans are vast and deep. So vast, in fact, that nearly every coastal country has the potential to meet its own domestic seafood needs through aquaculture. In fact, each country could do so using a tiny fraction of its ocean territory. […]

  • Meadow of dancing brittle stars shows evolution at work
    on August 14, 2017 at 1:34 pm

    Newly-described fossil shows how brittle stars evolved in response to pressure from predators, and how an 'evolutionary hangover' managed to escape them. […]

  • San Salvador pupfish acquired genetic variation from island fish to eat new foods
    on August 10, 2017 at 6:17 pm

    Pupfish living in salty lakes on San Salvador Island were able to diversify into multiple species with different eating habits, in part, by interbreeding with pupfish from other islands in the Caribbean. […]

  • Environmental Specimen Bank: Time capsule for the future
    on August 10, 2017 at 4:48 pm

    The Environmental Specimen Bank is an archive of environmental samples from the Norwegian nature. All data are saved in a database, which contains information about thousands of samples. And in the freezers, samples from fish, blue mussels, bird eggs, polar bears, arctic foxes, seals, otters, wolverines and reindeers – even mosses, air samples and sewage samples - are stored. […]

  • How urban seasnakes lost their stripes
    on August 10, 2017 at 4:04 pm

    Researchers studying turtle-headed seasnakes living on coral reefs in the Indo-Pacific noticed something unusual about the snakes' color patterns: seasnakes living in more pristine parts of the reef were decorated with black-and-white bands or blotches. Those in places with more human activity -- near the city or military activity -- were black. Those color differences are explained by differences in the snakes' exposure to pollution. […]

  • Marine noise pollution stresses and confuses fish
    on August 10, 2017 at 2:49 pm

    Increased noise pollution in the oceans is confusing fish and compromising their ability to recognise and avoid predators. […]

  • Sea urchins: From pest to plate
    on August 9, 2017 at 11:40 am

    The genital gland of a sea urchin, the so-called gonad, is found inside the urchin. This organ stores nutrients, and contains milt and roe during the spawning season in spring. The gonads are very popular in sushi dishes in especially Asia, but also in other parts of the world. […]

  • Amateur collectors in Japan discover country's first and oldest fossil diving bird
    on August 8, 2017 at 6:54 pm

    Two brothers from a small town in Hokkaido, Japan, made the discovery of their lives -- the first and oldest fossil bird ever identified in their country. Identified as a new species, it has been named Chupkaornis keraorum. […]

  • The good, the bad and the algae
    on August 7, 2017 at 7:54 pm

    A new study is testing whether one of California’s largest and most polluted lakes can transform into one of its most productive and profitable. Southern California’s 350-square-mile Salton Sea has well-documented problems related to elevated levels of nitrogen and phosphorus from agricultural runoff. The research team intends to harness algae’s penchant for prolific growth to clean up these pollutants and stop harmful algae blooms while creating a renewable, domestic source of fuel. […]

  • Marine reserves a solution to bycatch problem in oceans
    on August 7, 2017 at 7:17 pm

    Commercial fishermen may be able to catch more of the profitable fish they want with marine reserves than without them, according to a study. […]

  • DNA from Viking cod bones suggests 1,000-year history of European fish trade
    on August 7, 2017 at 7:17 pm

    New research using DNA from the fish bone remains of Viking-era meals reveals that north Norwegians have been transporting -- and possibly trading -- Arctic cod into mainland Europe for a millennium. […]

  • The ocean's fastest shark is being threatened by over fishing
    on August 7, 2017 at 3:28 pm

    Study using satellite-tagged shortfin mako sharks shows mortality rates have been dramatically underestimated. […]

  • Drug safety for penguins
    on August 4, 2017 at 2:04 pm

    Researchers have determined the most effective drug dose to help penguins in managed care fight off disease. […]

  • Animal coloration research: On the threshold of a new era
    on August 3, 2017 at 6:10 pm

    In the last 20 years, the field of animal coloration research has experienced explosive growth thanks to numerous technological advances, and it now stands on the threshold of a new era. […]

  • A dolphin diet
    on August 2, 2017 at 7:25 pm

    The health of dolphin populations worldwide depends on sustained access to robust food sources. Marine biologists have now studied the diets of dolphin species to understand the animals' foraging habits and how they share ocean resources. […]

  • Microscopic body snatchers infest our oceans
    on August 2, 2017 at 2:30 pm

    Predatory microbes which enslave prey to acquire photosynthetic capability are abundant in our oceans, according to new research. […]

  • Changes in biodiversity: Better assessment
    on August 2, 2017 at 2:30 pm

    Assessing the state of an ecosystem solely on the basis of short-term changes in the number of different species it contains can lead to false conclusions. […]

  • Ecosystem cascades affecting salmon
    on August 1, 2017 at 8:00 pm

    New research reveals that shifts in ocean conditions in the Gulf of the Farallones leads to changes in bird predation, affecting the number of California salmon that return as adults. […]

  • Boat noise disrupts fish cooperation
    on August 1, 2017 at 1:02 pm

    Noise from motorboats changes the behavior of cleaner fish and the species they help, outlines a new report. […]

  • Understanding how fishers fish on coral reefs can inform fishery management strategies
    on July 31, 2017 at 5:41 pm

    A study of spearfishing on a Caribbean coral reef illustrates how understanding the process of fishing can help in developing management strategies to address overfishing and coral reef protection worldwide. Understanding which fish are targeted, when, why and where in a coral reef habitat, are important details that extend beyond catch limits or even bans that so often define fishing regulations. […]