Endangered Ganges shark, megamouths, shark drones, whale shark “eye-teeth” and more…
The Ganges shark, Glyphis gangeticus, is listed as a critically endangered species on the IUCN red list. The species is so rare, that after a single sighting in 2006, the species was not seen again until 2016, when it reemerged at a local Mumbai fish market. Typically found in rivers of India, the scientist recently redrew expanded distribution maps when, as the result of various genetic studies, the Borneo river shark and the Irrawaddy river shark (were reclassified as part of the Ganges shark species.
2. Ocean Conservation Administration (OCA) lacks data to protect megamouth sharks
The Ocean Conservation Administration (OCA) yesterday said it needs more data to decide whether to protect megamouth sharks, after an animal protection group said fishing vessels have been catching the species without restrictions. According to fisheries data, eight megamouth sharks have been caught off the coast of Taiwan so far this year, and seven of the sharks were caught by the same boat. Research describes the species as slow-growing, having late sexual maturity, and small litter sizes.
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3. Australia spends $8 m on shark-spotting drones to patrol coastline
The South Pole cooled until the 1980s and has since warmed substantially. These trends are affected by natural and anthropogenic climate change. Clem and his team analyzed weather station data at the South Pole, as well as climate models to examine the warming in the Antarctic interior. They found that between 1989 and 2018, the South Pole had warmed by about 1.8 degrees Celsius over the past 30 years at a rate of +0.6 degrees Celcius per decade — three times the global average.
Read more in “Science Daily”
The soft coral garden, presented in a new Frontiers in Marine Science paper, is the first habitat of this kind to have been identified and assessed in west Greenland waters. The study has direct implications for the management of economically important deep-sea trawl fisheries, which are immediately adjacent to the habitat. The researchers hope that a 486 km2 area will be recognized as a ‘Vulnerable Marine Ecosystem’ under UN guidelines, to ensure that it is protected.
Read more in “University College London”
Papahānaumokuākea, a UNESCO World Heritage Sites is the largest contiguous fully protected conservation area under the U.S. flag and the largest marine conservation area in the world — has been awarded more than $1 million in funding for research.
13. Improvement in Hawaii’s marine management can restore coral reef fisheries
Melting of Arctic ice due to climate change has exposed more sea surface to an atmosphere with higher concentrations of carbon dioxide. Scientists have long suspected this trend would raise CO2 in Arctic Ocean water. Now University of Montana researcher Michael DeGrandpre and his patented sensors have helped an international team determine that, indeed, CO2 levels are rising in water across the Arctic Ocean’s Canada Basin.
The artificial lighting which lines the world’s coastlines could be having a significant impact on species that rely on the moon and stars to find food, new research suggests. Creatures such as the sand hopper, Talitrus saltator orientate their nightly migrations based on the moon’s position and brightness of the natural night sky. However, a study by the University of Plymouth and Bangor University shows the presence of artificial light originating from cities several kilometers away (also known as artificial skyglow) disrupts the lunar compass they use when covering long distances.
15. New England looks to Europe to assess impact of offshore energy developments
Rhode Island is still the only state in the country with an offshore wind farm, but that will change in the coming years as wind farms are built along the entire Eastern Seaboard, from Virginia all the way up to Maine. Now five years old, the Block Island wind farm, consisting of just five turbines, has been the subject of considerable study as scientists determine what impacts, if any, the construction of the facility and the turbines themselves are having on the ecosystem. Researchers are also looking to the future, when thousands of wind turbines will be coming online.