OceanGeo

  • Seaweeds shelter calcifying marine life from acidifying oceans

    Seaweeds create a chemical microenvironment at their surface, providing refuge for calcifying organisms that are at risk from decreasing oceanic pH, shows new research published in the journal Functional Ecology. CO2 in the atmosphere dissolves directly into seawater, lowering the pH and making it increasingly acidic. Kelp and other seaweeds...
  • Recordings spout secrets behind blue whale behaviour

    Researchers are using underwater microphones to interpret and characterize the calls of blue whales swimming through Southern California’s oceans, revealing new insights into the behavior of these endangered marine mammals, according to new research. Stretching nearly 30 meters (100 feet) long and weighing up to 172 metric tons (190...
  • The Mysterious Lives of Narwhals

    Narwhals are some of the most elusive creatures in the ocean, spending most of their lives in deep water far from shore. But research being presented at the 2018 Ocean Sciences Meeting here on Monday may shed a bit of light on these enigmatic marine mammals. New research shows...
  • Primitive fish had more sense than we thought 

    CT scans of vertebrate fish fossils have found early signs of sophisticated electroreception systems, which paved the way for the amazing detection ability of sharks, lungfish and other living species. The research, led by Flinders University palaeontologists Ben King and Professor John Long, found evidence of electroreception in the...
  • Loud ships affect fish communication

    NOAA scientists studying sounds made by Atlantic cod and haddock at spawning sites in the Gulf of Maine have found that vessel traffic noise is reducing the distance over which these animals can communicate with each other. As a result, daily behavior, feeding, mating, and socializing during critical biological...
  • Humpback whales calve further south than previously thought

    A study that looked at where humpback whales give birth along the coast of Western Australia has shown that the calving grounds extend more than 1000 kilometres further south than currently recognised. The research by IMAS PhD student Lyn Irvine, published in the journal Marine Mammal Science, included aerial...
  • Explaining Antarctic Seafloor Biodiversity

    In a world-first, a research team of Australian and international scientists has used data collected by satellites and an ocean model to explain and predict biodiversity on the Antarctic seafloor. The researchers combined satellite images of phytoplankton colour on the sea surface with a suite of connected models of...
  • Why are there no sea snakes in the Atlantic?

    Sea snakes are an evolutionary success story. With about 70 species, they’re the most diverse reptile group in the ocean, outnumbering sea turtle species 10-to-1. They sport a range of physical adaptations for life at sea, including a flattened oar-like tail for paddling and the abilities to smell underwater,...
  • How a tiny sea animal feeds itself, and the ocean

    Dime-sized ocean organisms thought to graze on any particles in their path are actually picky eaters, and their food-filtering process may be vital to how organic materials are distributed from surface waters to the ocean floor. Those conclusions come from three studies, which involved scuba diving in different locations...