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“#Invasive lionfish may be a selective predator” Hungry lionfish were placed within artificial enclosures designed to simulate natural conditions, with three prey species, to observe their predatory behaviors and diet choices. Credit: Smithsonian Tropical Research Institute Invasive predators have the capacity to dramatically alter marine ecosystems. The lionfish, a voracious predator native to the Indo-Pacific…
“#Biotelemetry provides unique glimpse into whitespotted eagle rays’ behavior” Breanna DeGroot, M.S., lead author, a research technician and former graduate student working with Matt Ajemian, Ph.D., co-author and an assistant research professor at FAU’s Harbor Branch. Credit: Florida Atlantic University’s Harbor Branch Oceanographic Institute The whitespotted eagle ray (Aetobatus narinari), found in estuaries and lagoons…
“#Report exposes rampant illegal fishing in North Korean waters” By combining satellite data, artificial intelligence and on-the-ground expertise, Global Fishing Watch uncovered the largest known case of illegal fishing perpetrated by vessels originating from one country operating in another nation’s waters. Credit: © Global Fishing Watch A new study published today in the journal Science…
“#Climate change is impacting the spread of invasive animal species” Hemigrapsus sanguineus. Credit: Alfred-Wegener-Institut/Uwe Nettelmann What factors influence the spread of invasive animal species in our oceans? This question was the focus for a team of experts from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI), Bangor University (Wales, UK), and…
“#Extreme environmental conditions can lead to a massive global reshuffling of biodiversity” Credit: CC0 Public Domain Around 252 million years ago, the world experienced a mass extinction, killing ninety percent of all animal and plant species in the world’s oceans. This event, called the Permian-Triassic mass extinction, at the end of the Permian Age had…
“#Sharks almost gone from many reefs” Credit: CC0 Public Domain A massive global study of the world’s reefs has found sharks are ‘functionally extinct’ on nearly one in five of the reefs surveyed. Professor Colin Simpfendorfer from James Cook University in Australia was one of the scientists who took part in the study, published today…
“#US wildlife agency rejects protections for rare fish species” This photo provided by the U.S. Fish and Wildlife Service shows an Arctic grayling captured in a U.S. Fish and Wildlife Service fish trap at Red Rock Lakes National Wildlife Refuge near Lima, Montana. U.S. wildlife officials have rejected federal protections for the rare, freshwater fish…
“#Plastics found in sea-bed sharks” Microplastics have been found in the guts of sharks that live near the seabed off the UK coast. Credit: Jake Davies Microplastics have been found in the guts of sharks that live near the seabed off the UK coast. University of Exeter scientists studied four species of demersal (seabed-dwelling) shark….
“#Life in the shallows becomes a trap for baby sharks” Climate change is changing already extreme nursery environments for baby blacktip reef sharks. Credit: Tom Vierus, www.tomvierus.com Scientists can now explain how baby reef sharks tolerate living in the sometimes-extreme environments of their nurseries—but, they also say these habitats face an uncertain future which may…
“#Crown-of-thorns enhance their growth by switching diets early” Early stage herbivorous crown-of-thorns starfish camouflaged against the coralline algae that it has been feeding on, with a recent feeding scar directly adjacent. Credit: Daniel J. Schultz Crown-of-thorns starfish are renowned for eating coral and destroying coral reefs—but when juvenile crown-of-thorns first settle in reef environments they…