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17 news posts in Marine biology

Earth science

18 Oct 2022

WWII shipwreck has leaked many pollutants into the sea, changing the ocean floor around it

By Suzanna Burgelman, Frontiers science writer Torn deck plating of the V 1302  John Mahn that was damaged by the bomb that hit amidships. Image: Flanders Marine Institute/VLIZ Researchers have discovered that an 80 year old historic World War II shipwreck is still influencing the microbiology and geochemistry of the ocean floor where it rests. In Frontiers in Marine Science, they show how the wreck is leaking hazardous pollutants, such as explosives and heavy metals, into the ocean floor sediment of the North Sea, influencing the marine microbiology around it. The seabed of the North Sea is covered in thousands of ship and aircraft wrecks, warfare agents, and millions of tons of conventional munition such as shells and bombs. Wrecks contain hazardous substances (such as petroleum and explosives) that may harm the marine environment. Yet, there is a lack of information about the location of the wrecks, and the effect they might have on the environment.  “The general public is often quite interested in shipwrecks because of their historical value, but the potential environmental impact of these wrecks is often overlooked,” said PhD candidate Josefien Van Landuyt, of Ghent University. For example, it is estimated that World War I and […]

Featured news

16 Dec 2021

More than 100 underwater animal species found living on 2,200-year-old Mediterranean shipwreck

By Mischa Dijkstra, Frontiers science writer The ship’s ram as it was found on the seabed off Sicily at a depth of nearly 90m. Image credit: K. Egorov / Società per la Documentazione dei Siti Sommersi – Global Underwater Explorers (SDSS-GUE) Italian researchers found amazing community of 114 species of invertebrates on priceless archeological artifact, including ecological ‘constructors’, ‘binders’, and ‘dwellers’ On March 10, 241 BCE, a sea battle took place near the Aegadian Islands off northwestern Sicily. A fleet equipped by the Roman Republic destroyed a fleet from Carthage, ending the First Punic War in Rome’s favor. But scientists have now shown that this destruction and carnage utimately made a a rich flowering of marine life possible. In a recent study in Frontiers in Marine Science, they reported finding no fewer than 114 species of animals, coexisting in a complex community, on a ship’s ram from a Carthaginian ship sunk in the battle. This is the first study of marine life on a very ancient wreck. The ram is not only a priceless archeological find, but also a unique window into the processes by which marine animals colonize empty sites and gradually form mature, stable, diverse communities. “Shipwrecks are […]

Environment

26 Oct 2021

Waters off French coast in winter may be a deadly trap for small, foraging turtles

By Tania Fitzgeorge-Balfour, Science writer A tracked loggerhead turtle on the beach with satellite tracker attached to its shell. Image: Oceane Cottier Aquarium La Rochelle SAS Turtle habitat boundaries should be updated to include European waters, suggests a new study tracking stranded turtles rescued from the French coast. Their movements after release back into the Bay of Biscay appear related to their size, with larger individuals swimming westwards towards their birth home in the US or Africa, and smaller individuals potentially trapped in the region for winter. These findings will inform strategies to ensure stranded turtles survive after their release. The documented habitat boundaries of the loggerhead, Kemp’s ridley and green turtles are questioned by a new study suggesting that stranded turtles rescued from European French Atlantic and Channel waters could be visiting the area to forage for food. Published in Frontiers in Marine Science, satellite tracking data reveals that while some turtles may be able to return home, after their rehabilitation and release to Florida in the US, or Cape Verde off the African coast, younger individuals are at risk of being trapped in the region. “Stranded turtles that were tracked swimming westwards presumably towards their birth homes, after […]

Featured news

18 Mar 2021

Dolphins adapt to survive invasive coastal constructions

Marine ecosystems are endangered by an increasing number of coastal development projects. A new study shows for the first time that bottlenose dolphins may adapt to anthropogenic disturbance under some circumstances. The findings draw attention to the need for proper management of coastal construction sites. By Suzanna Burgelman, Frontiers Science writer Social interaction between two bottlenose dolphins. Image: Ann Waver Bottlenose dolphins learn to cope with coastal construction activities. That is the conclusion of a study published in Frontiers in Marine Science. The study is the first to provide a longitudinal perspective on the cumulative impacts of coastal construction. Dolphins adapted to the construction of a bridge by establishing feeding locations outside of the construction zone, and by shifting the timings of behaviors to a time in the day when construction activities were minimized. Coastal development practices negatively impact marine wildlife Marine coastal development is characterized by unsustainable practices. Coastal development exposes 47% of coastal marine mammal species and 51% of core marine mammal habitats to extensive anthropogenic disturbance. Human activities along coastlines and in marine habitats can lead to pollution, vessel strikes, entanglement, by-catch, and debris ingestion, which disturb and harm marine wildlife. Read original article Download original article (pdf) […]

Earth science

15 Feb 2021

Strange creatures accidentally discovered beneath Antarctica’s ice shelves

Prior research has suggested that the watery depths below the Antarctic ice shelves are too cold and nutrient poor to sustain much life. But a new study from British Antarctic Survey reveals the discovery of a colony of sponges and other animals attached to a boulder on the sea floor – challenging researchers’ understanding about the existence of life in extreme environments. British Antarctic survey camera travelling down the 900-meter-long bore hole in the Filchner-Ronne ice shelf. (marine creature pictured is unrelated to the discovery) CREDIT: Dr Huw Griffiths/British Antarctic Survey By K.E.D Coan, science writer/British Antarctic Survey Far underneath the ice shelves of the Antarctic, there’s more life than expected, finds a recent study in the journal Frontiers in Marine Science. During an exploratory survey, researchers drilled through 900 meters of ice in the Filchner-Ronne Ice Shelf, situated on the south eastern Weddell Sea. At a distance of 260km away from the open ocean, under complete darkness and with temperatures of -2.2°C, very few animals have ever been observed in these conditions. But this study is the first to discover the existence of stationary animals – similar to sponges and potentially several previously unknown species – attached to a boulder […]

The marine environment is a precious common heritage and an incredibly rich source of biological and chemical diversity with wide applications. It is important to develop technologies that help us make use of marine resources sustainably, so they are available for future generations.

Health

16 Oct 2017

Exploration of mesophotic coral ecosystems for new medicines

Research Topic will feed into policy recommendations to ensure sustainable practices for collecting marine resources in unexplored areas of the ocean