Marine Biology News

Courtesy of Science Daily

Welcome to Sea and Sky's Marine Biology News. Here you can find links to the latest ocean news headlines in the topic of marine biology. Click on any yellow title below to view the full news article. The news article will open in a new browser window. Simply close the browser window when you are finished reading the article to return to the news article listing. You can use the "Click for More" link to go to a page with more news headlines.

 

Polar front’s oceanographic barrier is not as impermeable for bryozoans of the Southern Ocean as thought
The polar front, an oceanographic barrier between the Austral Ocean and its surrounding water masses, is not the impermeable biogeograpgical barrier it was thought to be, according to a new article.
Publ.Date : Fri, 24 Mar 2017 10:55:20 EDT

Evolutionary advantage of the common periwinkle
A special kind of small sulfur-rich proteins, the metallothioneins, have an extraordinarily large capability for binding heavy metals. An international team of scientists has now discovered that the marine common periwinkle, which is widely considered a delicacy, contains the largest version of the protein found yet, with one additional cadmium-binding domain and a one-third higher detoxification capacity. This feature may help the snail survive in heavy-metal-polluted environments.
Publ.Date : Fri, 24 Mar 2017 10:48:45 EDT

Climate change and an 'overlooked' nutrient: Silica
Sugar maples may have far greater silica pumping power than expected, and also may be more profoundly affected by climate change as warmer winters damage their vulnerable roots.
Publ.Date : Thu, 23 Mar 2017 12:55:19 EDT

Corals die as global warming collides with local weather in the South China Sea
In the South China Sea, a 2°C rise in the sea surface temperature in June 2015 was amplified to produce a 6°C rise on Dongsha Atoll, a shallow coral reef ecosystem, killing approximately 40 percent of the resident coral community within weeks, according to a study.
Publ.Date : Thu, 23 Mar 2017 10:58:24 EDT

Sea urchin spines could fix bones
More than 2 million procedures every year take place around the world to heal bone fractures and defects from trauma or disease, making bone the second most commonly transplanted tissue after blood. To help improve the outcomes of these surgeries, scientists have developed a new grafting material from sea urchin spines.
Publ.Date : Wed, 22 Mar 2017 10:37:14 EDT

Salmon with side effects: Aquacultures are polluting Chile's rivers with a cocktail of dissolved organic substances
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 Chile’s rivers from salmon farms. They warn that these substances are placing huge strain on ecosystems and are changing entire biological communities.
Publ.Date : Wed, 22 Mar 2017 09:45:20 EDT

430 million-year-old fossil named in honor of Sir David Attenborough
A new 430 million-year-old fossil has been discovered by scientists, and has been named in honor of Sir David Attenborough. The discovery is a unique example of its kind in the fossil record, say the authors of a new report.
Publ.Date : Wed, 22 Mar 2017 09:23:43 EDT

A new species of hard coral from the World Heritage-listed Lord Howe Island, Australia
The discovery of a new species of hard coral, found on Lord Howe Island, suggests that the fauna of this isolated location in the Tasman Sea off south eastern Australia is even more distinct than previously recognized. Even though the World Heritage-listed site has been long known for its biodiversity, the new species is the first coral known to live exclusively in the region.
Publ.Date : Wed, 22 Mar 2017 09:20:18 EDT

Dead zones may threaten coral reefs worldwide
Dead zones affect dozens of coral reefs around the world and threaten hundreds more according to a new study. Watching a massive coral reef die-off on the Caribbean coast of Panama, they suspected it was caused by a dead zone -- a low-oxygen area that snuffs out marine life -- rather than by ocean warming or acidification.
Publ.Date : Tue, 21 Mar 2017 12:25:21 EDT

Fish evolve by playing it safe
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.
Publ.Date : Tue, 21 Mar 2017 09:26:43 EDT

Microorganisms in the subsurface seabed on evolutionary standby
Through genetic mutations microorganisms normally have the ability to develop new properties over a short time scale. Researchers now show that microbes in the deep seabed grow in slow motion with generation times of up to 100 years.
Publ.Date : Mon, 20 Mar 2017 14:38:09 EDT

Gardening worms, climate change undermine natural coastal protection
Dikes could be lower if they are protected against the waves by grassy marshes. But the protective salt marsh grass is struggling, not only due to increasingly stronger waves, but also to the superfood diet of ragworms. These sophisticated gardeners turn inedible, tough grass seeds into succulent, nutritious sprouts in their burrows. These cultivation techniques prevent many seeds from growing into salt marsh vegetation, thus undermining the use of salt marshes for 'natural' coastal protection.
Publ.Date : Mon, 20 Mar 2017 10:40:26 EDT

Microorganisms in the subsurface seabed on evolutionary standby
Through genetic mutations microorganisms normally have the ability to develop new properties over a short time scale. Researchers now show that microbes in the deep seabed grow in slow motion with generation times of up to 100 years.
Publ.Date : Mon, 20 Mar 2017 09:36:43 EDT

From entanglement to invasions of alien species: the harm caused by marine litter
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.
Publ.Date : Fri, 17 Mar 2017 08:26:57 EDT

Paleozoic echinoderm hangover: Waking up in the Triassic
The end-Paleozoic witnessed the most devastating mass extinction in Earth's history so far, killing the majority of species and profoundly shaping the evolutionary history of the survivors. Echinoderms are among the marine invertebrates that suffered the most severe losses at the end-Permian extinction. Or were they?
Publ.Date : Thu, 16 Mar 2017 17:42:20 EDT

The carbon dioxide loop
Marine biologists quantify the carbon consumption of bacterioplankton to better understand the ocean carbon cycle.
Publ.Date : Thu, 16 Mar 2017 14:11:33 EDT

How to conserve polar bears -- and maintain subsistence harvest -- under climate change
A properly-managed subsistence harvest of polar bears can continue under climate change, according to analysis that combines sea-ice forecasts with a polar bear population model.
Publ.Date : Wed, 15 Mar 2017 18:23:38 EDT

Scientists mobilize as bleaching resumes on Great Barrier Reef
Coral researchers are remobilizing to conduct aerial and underwater surveys along the Great Barrier Reef and elsewhere in Australia as coral bleaching reappears for the second year in a row. The decision coincides with the release today of a study in the journal Nature warning the Reef's resilience is rapidly waning.
Publ.Date : Wed, 15 Mar 2017 14:38:21 EDT

How plankton cope with turbulence
Microscopic marine plankton are not helplessly adrift in the ocean. They can perceive cues that indicate turbulence, rapidly respond to regulate their behavior and actively adapt. Researchers have demonstrated for the first time how they do this.
Publ.Date : Wed, 15 Mar 2017 14:38:18 EDT

Soft coral exhibit strikingly different patterns of connectivity around British Isles
Some sea life could be just as disconnected as those divided by mountains or motorways, new research indicates.
Publ.Date : Wed, 15 Mar 2017 12:55:38 EDT