MarineBio Conservation SocietyEcosystem News   :: ScienceDaily

Salmon with side effects: Aquacultures are polluting Chile's rivers with a cocktail of dissolved organic substances

Wed, 22 Mar 2017 09:45:20 EDT ~ Tasty, versatile, and rich in essential omega-3 fatty acids: salmon is one of the most popular edible fish of all. Shops sell fish caught in the wild, but their main produce is salmon from breeding farms which can pollute rivers, lakes and oceans. Just how big is the problem? Scientists are working to answer this question by examining the dissolved organic compounds which enter Chiles rivers from salmon farms. They warn that these substances are placing huge strain on ecosystems and are changing entire biological communities. Find out more...

Research: From Arctic to the Mediterranean

Tue, 21 Mar 2017 12:39:12 EDT ~ Lakes, rivers, estuaries and oceans are closely connected. Despite this, aquatic research is still divided in marine and freshwater sciences. Now, scientists from 19 leading research institutes and universities and two enterprises from 12 countries across Europe aim to change this and have joined forces in the project "AQUACOSM - Network of Leading European AQUAtic MesoCOSM Facilities Connecting Mountains to Oceans from the Arctic to the Mediterranean". The network will perform the first systematic large-scale experiments in both freshwater and marine ecosystems. Find out more...

New species discovered: Protist parasites contribute to the stability of rainforest ecosystems

Tue, 21 Mar 2017 12:38:27 EDT ~ Tropical rainforests are one of the most species-rich areas on earth. Thousands of animal and plant species live there. The smaller microbial protists, which are not visible to the naked eye, are also native to these forests, where they live in the soils and elsewhere. A team of researchers has examined them more closely by analyzing their DNA. They discovered many unknown species, including many parasites, which may contribute to the stability of rainforest ecosystems. Find out more...

Amazon River no younger than 9 million years, new study shows

Tue, 21 Mar 2017 12:38:23 EDT ~ Researchers have determined the age of the formation of the Amazon River at 9.4 to 9 million years ago with data that convincingly refutes substantial younger estimates. Find out more...

Enormous swarms of midges teach about interconnected landscapes

Fri, 17 Mar 2017 13:26:48 EDT ~ Ecologists are trying to understand why the midge population at an Icelandic lake can fluctuate by 100,000-fold across a decade, and what impact these massive swarms have on the surrounding landscape. Find out more...

From entanglement to invasions of alien species: the harm caused by marine litter

Fri, 17 Mar 2017 08:26:57 EDT ~ Marine litter is a threat to the marine ecosystem, human health and economic activities. A new report sheds light on the many effects of litter in our oceans, and highlights the severity and scale of the issue. The report confirms that plastic items have the highest direct and indirect damaging impact. Find out more...

Extensive ice cap once covered sub-Antarctic island of South Georgia

Fri, 17 Mar 2017 08:24:46 EDT ~ The sub-antarctic island of South Georgia -- famous for its wildlife -- was covered by a massive ice cap during the last ice age, new research indicates. Find out more...

Big bat find in Albertas boreal forest

Thu, 16 Mar 2017 15:20:04 EDT ~ Biologists have announced the discovery last month of the largest Alberta bat hibernation site (based on estimated bat count) ever recorded outside of the Rocky Mountains. Find out more...

Hawaiian biodiversity has been declining for millions of years

Thu, 16 Mar 2017 14:11:23 EDT ~ DNA analysis led some biologists to conclude that evolutionary diversification in Hawaii has yet to peak, but a new analysis shows the opposite: biodiversity on the island chain peaked millions of years ago and has been decreasing every since. On the older islands, because of crowding caused by shrinking land area, species were being lost long before humans entered the mix. Find out more...

Only the tip of the iceberg: Monitoring programs underestimate human impact on biodiversity

Thu, 16 Mar 2017 09:29:02 EDT ~ Whether orchids or mammals, insects or slugs and snails: nowadays there are a large number of animals and plants under observation. Unfortunately, the collection of this data began only very recently. The fact that the human impact on biodiversity is likely to be greatly underestimated is the warning sent out by an international research team. Find out more...