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.

 

Young salmon may leap to 'oust the louse'
A study by aquatic ecologists reveals that young salmon may jump out of water to remove sea lice.
Publ.Date : Mon, 13 Aug 2018 10:03:03 EDT

Sea stars critical to kelp forest resilience
A study by a resource and environmental management researcher reveals that sunflower sea stars play a critical role in the resilience of B.C.'s kelp forests, which are among the most productive ecosystems on Earth. Similar to land-based forests, kelp forests provide essential habitat for species and also help remove CO2 from the atmosphere.
Publ.Date : Mon, 13 Aug 2018 10:03:00 EDT

Marine mammals lack functional gene to defend against popular pesticide
As marine mammals evolved to make water their primary habitat, they lost the ability to make a protein that defends humans and other land-dwelling mammals from the neurotoxic effects of a popular human-made pesticide. The implications of this discovery led researchers to call for monitoring our waterways to learn more about the impact of pesticides and agricultural run-off on marine mammals, such as dolphins, manatees, seals and whales.
Publ.Date : Thu, 09 Aug 2018 14:12:15 EDT

Diverse symbionts of reef corals have endured since 'age of dinosaurs'
Coral-algal partnerships have endured numerous climate change events in their long history, and at least some are likely to survive modern-day global warming as well, suggests an international team of scientists.
Publ.Date : Thu, 09 Aug 2018 14:11:55 EDT

'Biological passport' to monitor Earth's largest fish
Whale sharks, the world's largest fish, roam less than previously thought. This new study used stable isotope analysis to demonstrate that whale sharks feeding at three disparate sites in the Western Indian Ocean and Arabian Gulf rarely swim more than a few hundred kilometers north or south from these areas according to researchers.
Publ.Date : Thu, 09 Aug 2018 09:34:35 EDT

Effective method to control algae growth on Hawaiian coral reefs
Researchers have found a management approach that combining manual removal and outplanting native urchin was effective at reducing invasive, reef smothering macroalgae by 85 percent on a coral reef off O'ahu, Hawai'i.
Publ.Date : Wed, 08 Aug 2018 19:36:38 EDT

Models may help reduce bycatch from longline fishing
Hundreds of thousands of sharks, sea birds and other marine species are accidentally killed each year after becoming snagged or entangled in longline fishing gear. New models may help reduce the threat by giving regulatory agencies a new tool to predict the month-by-month movements of longline fleets on the high seas and determine where and when by-catch risks are greatest.
Publ.Date : Wed, 08 Aug 2018 15:34:05 EDT

New species of rare ancient 'worm' discovered in fossil hotspot
Scientists have discovered a new species of lobopodian, an ancient relative of modern-day velvet worms, in 430 million-years-old Silurian rocks in Herefordshire, UK.
Publ.Date : Wed, 08 Aug 2018 13:42:28 EDT

Expedition probes ocean's smallest organisms for climate answers
In August a team of scientists is sailing 200 miles to the northeastern Pacific Ocean with advanced robotics and other instruments on a month-long quest to investigate plankton and their impact on the carbon cycle.
Publ.Date : Wed, 08 Aug 2018 13:41:54 EDT

Good news for fishermen: Browning impacts fish less than expected
Water color is getting darker in lakes across the planet. This phenomenon, known as 'browning,' was anticipated to cause widespread declines in fish populations. A new study finds that the number of fish populations impacted by browning is smaller than previously believed.
Publ.Date : Wed, 08 Aug 2018 09:37:51 EDT

Genetic 'toolkit' helps periwinkles gain advantage on the seashore
Periwinkles, struggling to survive the seashore battleground, have developed a genetic 'toolkit' to help them adapt to different environments, a new study shows.
Publ.Date : Tue, 07 Aug 2018 13:17:59 EDT

Baby sea snails ride waves into shallower waters
The warming ocean may cause the larvae of bottom-dwelling snails to hatch earlier in the spring, when waves are larger, potentially impacting their ability to survive and serve as food for other sea creatures. A new study sheds new light on the sensory organs the snail larvae use to feel -- and perhaps even hear -- whether the water is turbulent or wavy, and improve their odds of being carried to a good habitat where they can settle down as adults.
Publ.Date : Tue, 07 Aug 2018 10:06:54 EDT

Corals are becoming more tolerant of rising ocean temperatures
Scientists replicate landmark study to determine changes in coral sea temperature tolerance over time. In the three species of Hawaiian corals retested, bleaching occurred later, with higher survivorship and growth rates than the same species of corals in 1970. However, scientists warn that temperatures are rising faster than corals can change.
Publ.Date : Tue, 07 Aug 2018 09:51:51 EDT

Small birds fly at high altitudes towards Africa
A new study shows that small birds migrating from Scandinavia to Africa in the autumn occasionally fly as high as 4,000 meters above sea level -- probably adjusting their flight to take advantage of favorable winds and different wind layers.
Publ.Date : Mon, 06 Aug 2018 10:42:50 EDT

The end-Cretaceous extinction unleashed modern shark diversity
A study that examined the shape of hundreds of fossilized shark teeth suggests that modern shark biodiversity was triggered by the end-Cretaceous mass extinction event, about 66 million years ago.
Publ.Date : Thu, 02 Aug 2018 14:16:35 EDT

Disease is threatening the most plentiful starfish in Antarctica
A study led by experts from the University of Barcelona's Faculty of Biology and Institute for Research on Biodiversity (IRBio) have identified a disease that is affecting the starfish Odontaster validus, one of the most common species on the Antarctic sea floor.
Publ.Date : Thu, 02 Aug 2018 11:57:01 EDT

Mapping blue carbon in mangroves worldwide
Mangroves are tropical forests that thrive in salt water and found in a variety of coastal settings worldwide. Mangroves store greater amounts of carbon than any other terrestrial ecosystem, which helps reduce carbon dioxide and greenhouse gases in the atmosphere. When carbon is stored in the ocean or coastal ecosystems, it is called blue carbon. However, a more precise estimate of how much blue carbon is stored by mangroves has not been available until recently.
Publ.Date : Thu, 02 Aug 2018 11:56:43 EDT

Some corals might adapt to climate changes
New research shows that not all corals respond the same to changes in climate. The study looked at the sensitivity of two types of corals found in Florida and the Caribbean and found that one of them - -mountainous star coral -- possesses an adaptation that allows it to survive under high temperatures and acidity conditions.
Publ.Date : Thu, 02 Aug 2018 11:56:37 EDT

Degrading plastics revealed as source of greenhouse gases
Researchers have found that several greenhouse gases are emitted as common plastics degrade in the environment. Their study reports the unexpected discovery of the universal production of greenhouse gases methane and ethylene by the most common plastics when exposed to sunlight.
Publ.Date : Wed, 01 Aug 2018 18:20:09 EDT

Fishing fleets travelling further to catch fewer fish
Industrial fishing fleets have doubled the distance they travel to fishing grounds since 1950, which means that they are now able to reach 90 percent of the global ocean, but are catching only a third of what they did 65 years ago per kilometer traveled.
Publ.Date : Wed, 01 Aug 2018 16:00:53 EDT