Over the past 20 years, concentrations of pharmaceuticals have increased in freshwater sources all over the world, as research by environmental experts at Radboud University has revealed. Levels of the antibiotic ciprofloxacin have reached the point of potentially causing damaging ecological effects. The research is the first to examine the risks of two particular medicines in global freshwater sources, and is being published in Environmental Research Letters on Feb. 22. 'The study calls for more widespread data gathering to measure the problem around the world.'
A new study uses environmental, socioeconomic and management data from 30 Caribbean islands to identify which communities may be most at risk from the social and ecological effects of coral bleaching, which occurs when warm water causes coral polyps to expel algae living in their tissue. The analysis shows that independent island nations, such as Cuba and Jamaica, may be less vulnerable to coral bleaching than island territories like Saint Barthélemy.
A new study outlines more than a decade of success in reducing seabird bycatch in Alaska's longline fisheries, and where there's still room for improvement.
New research from Binghamton University, State University of New York, highlights the importance of considering cold temperature variability, and not just warming temperatures, when evaluating the impact of climate change.
Flip a lobster on its back, and you'll see that the underside of its tail is split in segments connected by a translucent membrane that appears rather vulnerable when compared with the armor-like carapace that shields the rest of the crustacean. But engineers at MIT and elsewhere have found that this soft membrane is surprisingly tough, with a microscopic, layered, plywood-like structure that makes it remarkably tolerant to scrapes and cuts.
Aggressiveness among animals may increase the longer individuals live together in stable groups. This is the finding of a recent study carried out by researchers from the Leibniz-Institute of Freshwater Ecology and Inland Fisheries. The study, published in the journal Animal Behaviour used the Amazon molly, a naturally clonal fish species that produces genetically identical individuals to isolate the effects of familiarity on behavior.
By studying the logbooks of fishing boats, Princeton postdoctoral research scholar Talia Young and colleagues found that some fishing boats travel more than 250 miles to catch the fish that used to be in local waters. In response, Young began investigating how local community supported fishery programs -- like farm shares for fish -- can affect fishing communities. That resulted in the creation of Fishadelphia, a CSF based in a South Philadelphia charter school.
By studying fish raised in aquaculture, researchers from the Helmholtz Zentrum München, the University of Copenhagen and the University of Campinas in Brazil have shed new light on the mechanisms by which antibiotic resistance genes are transferred between bacteria. According to the study published in the journal Microbiome, those mechanisms are more varied than previously thought.
This study looks at how climate change and land use modification impact mercury pollution in wetlands.
Marine scientists from the University of Queensland, WCS (Wildlife Conservation Society) and other groups have developed a methodology to assess fish stocks that combines new data with archeological and historical records - some dating back to the 8th Century AD.