MarineBio Conservation SocietyFisheries 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...

Fish evolve by playing it safe

Tue, 21 Mar 2017 09:26:43 EDT ~ New research supports the creation of more marine reserves in the world's oceans because, the authors say, fish can evolve to be more cautious and stay away from fishing nets. Find out more...

New eyeless, pale catfish from middle of Amazon named

Wed, 15 Mar 2017 18:23:33 EDT ~ A new species of blind, Amazonian catfish was named for the discoverer's young daughter, who frequently goes on trips to the field with him. Find out more...

When the sea ice melts, juvenile polar cod may go hungry

Wed, 15 Mar 2017 09:45:11 EDT ~ Polar cod fulfil a key role in the Arctic food web, as they are a major source of food for seals, whales and seabirds alike. But the polar cod themselves might soon be the hungry ones. Find out more...

New study identifies ancient shark ancestors

Tue, 14 Mar 2017 19:02:33 EDT ~ New research based on x-ray imaging provides the strongest evidence to date that sharks arose from a group of bony fishes called acanthodians. Analyzing an extraordinarily well-preserved fossil of an ancient sharklike fish, researchers identified it as an important transitional species that points to sharks as ancanthodians' living descendants. Find out more...

Leap onto land saves fish from being eaten

Tue, 14 Mar 2017 11:11:16 EDT ~ Fish on the South Pacific island of Rarotonga have evolved the ability to survive out of water and leap about on the rocky shoreline because this helps them escape predators in the ocean. The new study is the first to examine the pressures driving fish out of water and shows the ocean is an enemy-filled environment for the little blennies. Find out more...

Fish oil supplements may help prevent death after MI but lack evidence of CV benefit for general population

Mon, 13 Mar 2017 16:18:50 EDT ~ Omega-3 fish oil supplements prescribed by a healthcare provider may be reasonable for patients who have had a heart attack. Patients with heart failure may also benefit from supplementation with omega-3 fish oil. However, there is a lack of evidence that omega-3 fish oil supplements prevent cardiovascular diseases in the general population. Find out more...

Fish and mercury: Detailed consumption advisories would better serve women across US

Thu, 09 Mar 2017 14:21:29 EST ~ Among women of childbearing age in the US, fish consumption has increased in recent years while blood mercury concentrations have decreased, suggesting improved health for women and their babies, a new study shows. Find out more...

Ancient southern China fish may have evolved prior to the 'Age of Fish'

Wed, 08 Mar 2017 14:53:43 EST ~ An ancient fish species with unusual scales and teeth from the Kuanti Formation in southern China may have evolved prior to the 'Age of Fish', according to a new study. Find out more...

Fish, selective hunting strategies and a delayed-return lifestyle among ancient foragers

Wed, 08 Mar 2017 11:48:21 EST ~ A unique trove of bone material from the 9,200 year old coastal settlement Norje Sunnansund in Blekinge, Sweden, has revealed that surprisingly sophisticated hunting strategies were used at the time. One key find was that the early Mesolithic humans practiced so-called selective hunting -- seemingly in order to maximize gain and preserve the local population of certain species. Find out more...