Researchers at William & Mary's Virginia Institute of Marine Science reveal that intensification of major oyster disease was due to evolving parasite, not just drought as previously thought.
Marine scientists assessed the risk posed by small-scale fisheries to all 72 species of toothed whales found throughout the world's oceans. They found that this risk was highest in the Central Indo-Pacific, Temperate Northern Pacific, Temperate South America and the Western Indo-Pacific.
Conditions during Baltic herring spawning may have cascading effects on the whole Baltic ecosystem.
The concentration of potentially toxic metals is increasing in the population of the franciscana dolphin --a small cetacean, endemic from the Rio de la Plata and an endangered species-- according to a study led by a team of the Faculty of Biology and the Biodiversity Research Institute (IRBio), published in the journal Science of The Total Environment.
It is generally agreed that sperms 'swim' by beating or rotating their soft tails. However, a research team led by scientists from City University of Hong Kong (CityU) has discovered that ray sperms move by rotating both the tail and the head. The team further investigated the motion pattern and demonstrated it with a robot. Their study has expanded the knowledge on the microorganisms' motion and provided inspiration for robot engineering design.
Actively restoring oyster reefs--beyond simply protecting them from harvest--can create big payoffs for habitat quality and the other species that flock to them. A new study from the Smithsonian Environmental Research Center, published June 3 in the journal Marine Ecology Progress Series, compared restored, protected and harvested areas using photos and video footage from roughly 200 sites.
Published in a Nature journal, an unprecedented UN analysis of 9,500 Harmful Algal Bloom (HAB) events recorded globally over 33 years shows harm rising in step with the aquaculture industry, marine exploitation and coastal development. 109 scientists in 35 countries conducted the 7-year study and report HAB events have increased in some regions, decreased or held steady elsewhere -- creating the world's first baseline against which to track future changes.
Decades of research has revealed the remarkable morphological adaptations of sea snakes to aquatic life, which include paddle-shaped tails, salt-excreting glands, and the ability to breathe through their skin. In a new study published in Biological Journal of the Linnean Society, researchers at the University of Adelaide detail the enlarged touch receptors that evolved in male turtle-headed sea snakes (Emydocephalus annulatus), to help them locate and court females in aquatic environments.
Scientists from the University of Rhode Island have taken the first steps toward understanding the function of microbes that live on and in Eastern oysters, which may have implications for oyster health and the management of oyster reefs and aquaculture facilities.
Researchers at the University of East Anglia have developed technology that will help to protect North American right whales, one of the world's most endangered marine species. The new techniques can remove unwanted noises from recordings, thereby increasing the reliability of detecting right whales before they reach close proximity to large vessels. This can both protect animals and avoid costly shutdowns of offshore operations.