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.

 

Hear no evil: Farmed fish found to be hard of hearing
Half of the world's farmed fish have hearing loss due to a deformity of the earbone, new research has found for the first time. Like humans, fish have ears which are essential for hearing and balance, so the findings are significant for the welfare of farmed fish as well as the survival of captive-bred fish released into the wild for conservation purposes.
Publ.Date : Thu, 28 Apr 2016 09:44:51 EDT

Scientists establish first map of the sea lion brain
Despite considerable evidence for the California sea lion's intelligence, very little is known about how their brain is organized. Now, a team of neuroscientists has taken an important step toward uncovering this mystery by conducting the first comprehensive study of the California sea lion's central nervous system, concentrating on the somatosensory system, which is concerned with conscious perception of touch, pressure, pain, temperature, position and vibration.
Publ.Date : Wed, 27 Apr 2016 16:55:13 EDT

Protecting diversity on coral reefs: DNA may hold the key
Scientists have discovered that large areas of intact coral reef with extensive live coral cover, not disturbed by humans or climate change, harbor the greatest amount of genetic diversity. With this work, the researchers uncovered a link between species diversity of an ecosystem and the genetic diversity encoded within the DNA of those species.
Publ.Date : Wed, 27 Apr 2016 16:53:36 EDT

Deep-sea biodiversity impacted by climate change's triple threat
A new study found that vulnerability of deep-sea biodiversity to climate change's triple threat -- rising water temperatures, and decreased oxygen, and pH levels -- is not uniform across the world's oceans.
Publ.Date : Wed, 27 Apr 2016 15:10:26 EDT

Coral 'toolkit' allows floating larvae to transform into reef skeletons
Key components of the molecular 'toolkit' that allow corals to build their skeletons (called biomineralization) has been desicribed in that new article that also outlines when -- in the transformation from floating larvae to coral skeleton -- these components are used.
Publ.Date : Wed, 27 Apr 2016 10:37:01 EDT

That's amore, water drone identifies grouper mating calls during spawning season
Just as the sun begins to set, hundreds to thousands of groupers gather at their favorite hangouts to spawn, and luckily they're pretty vocal about it, providing vital data on their reproductive behaviors as well as their favorite mating spots.
Publ.Date : Wed, 27 Apr 2016 09:50:59 EDT

We share molecular armor with coral reefs
A new study has found that one particular molecule found in reef ecosystems plays a similar immunological role in corals as it does in humans. From an evolutionary standpoint, this suggests the molecule's immune function dates back at least 550 million years.
Publ.Date : Tue, 26 Apr 2016 21:54:38 EDT

Proteomics method measures carbon uptake of marine microbes
A successful trial has been described of a new method of identifying the carbon uptake of specific marine bacterioplankton taxa. The technique uses proteomics -- the large-scale study of proteins -- to observe directly the metabolic processes of communities of microorganisms.
Publ.Date : Tue, 26 Apr 2016 14:45:36 EDT

Monitoring toxic chemicals in coastal waters to protect wildlife
More investment is needed to develop better analytical tests to measure, and therefore help control, the amount of toxic chemicals called organotins that enter the environment, according to a new review. The authors of the review found that tough regulations have inspired the development of new technologies to monitor organotins.
Publ.Date : Tue, 26 Apr 2016 09:21:26 EDT

Patterns of glowing sharks get clearer with depth
Catsharks are not only able to see the bright green biofluorescence they produce, but they increase contrast of their glowing pattern when deep underwater, new research concludes. The study, conducted with a custom-built 'shark-eye' camera that simulates how the shark sees underwater, shows that fluorescence makes catsharks more visible to neighbors of the same species at the depths that they live and may aid in communication between one another.
Publ.Date : Mon, 25 Apr 2016 16:13:31 EDT

Algae disrupt coral reefs' recycling
Coral reefs--the world's most productive and diverse marine ecosystems--rely on a masterful recycling program to stay healthy. A new study explores how a process known as 'microbialization' destroys links in coral reefs' delicate food chain.
Publ.Date : Mon, 25 Apr 2016 14:18:21 EDT

Ancient marine sediments provide clues to future climate change
Atmospheric carbon dioxide concentration was the major driver behind the global climatic shifts that occurred between 53 and 34 million years ago, according to new research.
Publ.Date : Mon, 25 Apr 2016 14:15:32 EDT

Live-bearing anemone undergoes major shifts in nutrition as young develop
The offspring of a brooding sea anemone transition from using egg yolks to prenatal, then post-natal, parental feeding during their development, according to a new study.
Publ.Date : Mon, 25 Apr 2016 11:28:43 EDT

Could a combined dietary supplement help ward off heart disease?
Fish oil, cocoa extract and phytosterols could offer new hope in fight against heart disease, suggest scientists. Current therapies against atherosclerosis are not fully effective and there have been numerous recent disappointments on promising agents that have been identified through various drug discovery programs.
Publ.Date : Mon, 25 Apr 2016 09:53:52 EDT

Scientists discover new reef system at mouth of Amazon River
As large rivers empty into the world's oceans in areas known as plumes, they typically create gaps in the reef distribution along the tropical shelves--something that makes finding a reef in the Amazon River plume an unexpected discovery.
Publ.Date : Fri, 22 Apr 2016 16:34:28 EDT

Corals most important for building reefs are now in sharp decline
Staghorns, the very corals responsible for establishing today's reefs, are now some of the most threatened coral species due to climate change and other human-made stressors.
Publ.Date : Fri, 22 Apr 2016 16:31:42 EDT

New study investigates the environmental cues dolphins use to migrate on the Atlantic coast of North America
Seasonal migration patterns of bottlenose dolphins -- what we know for sure? With the changing of the seasons comes the urge to migrate for many animals of the world, whether they be furred, feathered, or even finned. One finned animal in particular, the common bottlenose dolphin, undertakes seasonal migrations each spring and fall, but how the dolphins know when to migrate has not always been clear. It was usually assumed that their southern migration begins when the ocean waters drop in temperature. However, until now there was little evidence to support this and it was largely unknown what factors influence the initiation of dolphin migration. A new study has discovered some of the factors that influence these seasonal migrations.
Publ.Date : Fri, 22 Apr 2016 11:56:35 EDT

Researcher studies how animals puncture things
If shooting arrows from a crossbow into cubes of ballistics gelatin doesn't sound like biological science to you, you've got a lot to learn. A researcher has aimed to answer the fundamental question about how animals use their fangs, claws and tentacles to puncture other animals.
Publ.Date : Fri, 22 Apr 2016 07:51:51 EDT

Water color, phytoplankton growth in the Gulf of Maine are changing
The amount of dissolved organic carbon from rivers emptying into the Gulf of Maine has increased over the last 80 years, a trend they predict will continue through 2100 if annual precipitation continues to increase, warn researchers. Runoff is changing the color of the seawater, reducing the light available to phytoplankton for photosynthesis, causing a decline in overall productivity.
Publ.Date : Thu, 21 Apr 2016 17:12:08 EDT

Giant plankton gains long-due attention
A team of marine biologists and oceanographers have revealed the importance in all the world's oceans of a group of large planktonic organisms called Rhizaria, which had previously been completely underestimated. According to their findings, these organisms make up 33% of the total abundance of large zooplankton in the world's oceans, and account for 5% of the overall marine biomass. The study was carried out on samples collected during eleven oceanographic campaigns (2008-2013) covering the world's main oceanic regions, and included the Tara Oceans expedition.
Publ.Date : Thu, 21 Apr 2016 08:59:32 EDT