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.

 

Mobile protected areas needed to protect biodiversity in the high seas
As the United Nations rewrites the laws of the high seas, the new document should anticipate emerging technologies that allow protected areas to move as animals migrate or adapt to climate change.
Publ.Date : Thu, 16 Jan 2020 14:17:20 EST

Fossil is the oldest-known scorpion
Scientists studying fossils collected 35 years ago have identified them as the oldest-known scorpion species, a prehistoric animal from about 437 million years ago. The researchers found that the animal likely had the capacity to breathe in both ancient oceans and on land.
Publ.Date : Thu, 16 Jan 2020 12:19:03 EST

Discovery reveals how remora fishes know when to hitch a ride aboard their hosts
Researchers have detailed the discovery of a tactile-sensory system stowed within the suction disc of remora, believed to enable the fish to acutely sense contact pressure with host surfaces and gauge ocean forces in order to determine when to initiate their attachment, as well as adjust their hold on hosts while traversing long distances.
Publ.Date : Wed, 15 Jan 2020 17:01:22 EST

'The blob,' food supply squeeze to blame for largest seabird die-off
When nearly one million common murres died at sea and washed ashore from California to Alaska in 2015 and 2016, it was unprecedented -- both for murres, and across all bird species worldwide. Scientists blame an unexpected squeeze on the ecosystem's food supply, brought on by a severe and long-lasting marine heat wave known as 'the blob.'
Publ.Date : Wed, 15 Jan 2020 14:05:02 EST

Deep-sea mining's impact on microbes
The essential roles that microbes play in deep-sea ecosystems are at risk from the potential environmental impacts of mining, a new article reports. The study reviews what is known about microbes in these environments and assesses how mining could impact their important environmental roles.
Publ.Date : Tue, 14 Jan 2020 16:00:08 EST

Robotic gripping mechanism mimics how sea anemones catch prey
Researchers demonstrated a robotic gripping mechanism that mimics how a sea anemone catches its prey. The bionic torus captures and releases objects by crimping its skin. The grasper not only is relatively cheap and easy to produce but also can grab a variety of objects of different sizes, shapes, weights and materials.
Publ.Date : Tue, 14 Jan 2020 12:35:27 EST

Egg trading between hermaphroditic fish: Why would you give when you can just take?
The sex life of hermaphroditic animals is determined by one fundamental question: Who assumes the female role and produces the costly eggs? Hamlets avoid this dilemma by engaging in reciprocal egg trading. Scientists have now used microeconomic models to analyze the circumstances required for this complex system of trading to work.
Publ.Date : Tue, 14 Jan 2020 10:17:13 EST

International movements of Atlantic tarpon, need for protection
The results of an 18-year study of Atlantic tarpon revealed that these large silvery fish take extensive seasonal migrations -- 1,000s of kilometers in distance -- beyond US borders.
Publ.Date : Mon, 13 Jan 2020 17:56:48 EST

The advantage of changing sex in fish population recovery
Some fish species recover at different rates when fishing is eliminated inside MPAs. A new study explores how sex-changing fish species can actually recover faster than fixed-sex species.
Publ.Date : Mon, 13 Jan 2020 17:56:44 EST

How nodules stay on top at the bottom of the sea
Rare metallic elements found in clumps on the deep-ocean floor mysteriously remain uncovered despite the shifting sands and sediment many leagues under the sea. Scientists now think they know why, and it could have important implications for mining these metals while preserving the strange fauna at the bottom of the ocean.
Publ.Date : Mon, 13 Jan 2020 17:56:42 EST

Predicting non-native invasions in Antarctica
A new study identifies the non-native species most likely to invade the Antarctic Peninsula region over the next decade. It provides a baseline for all operators in the region to look at mitigation measures.
Publ.Date : Mon, 13 Jan 2020 07:58:38 EST

Dynamic interplay between genome and environment in pearl oysters
Researchers have, using genome-wide genetic data from specimens collected across the western Pacific, elucidated how pearl oyster populations vary genetically and geographically.
Publ.Date : Fri, 10 Jan 2020 07:37:36 EST

Large 'herbivores of the sea' help keep coral reefs healthy
Selective fishing can disrupt the delicate balance maintained between corals and algae in embattled Caribbean coral reefs.
Publ.Date : Thu, 09 Jan 2020 16:08:36 EST

Scientists use ancient marine fossils to unravel long-standing climate puzzle
Scientists have shed new light on the Earth's climate behavior during the last known period of global warming over 14 million years ago.
Publ.Date : Thu, 09 Jan 2020 10:55:33 EST

A 'pivotal' moment for understanding whale evolution
We could be getting closer to understanding how feeding behaviors in whales and dolphins have evolved over time.
Publ.Date : Thu, 09 Jan 2020 10:08:18 EST

How do corals make the most of their symbiotic algae?
Corals depend on their symbiotic relationships with the algae that they host. But how do they keep algal population growth in check? The answer to this fundamental question could help reefs survive in a changing climate. New work indicates how sea anemones, which are closely related to coral, control the size of the algal populations that reside within their tissue.
Publ.Date : Wed, 08 Jan 2020 16:03:32 EST

Can sea star movement inspire better robots?
What researchers have learned about how a sea star accomplishes movement synchronization, given that it has no brain and a completely decentralized nervous system, might help us design more efficient robotics systems.
Publ.Date : Wed, 08 Jan 2020 16:03:11 EST

Debunking previous studies that say tropical fish are behaving oddly
Biologists help debunk previous studies that say tropical fish are behaving oddly as oceans gets more acidic due to climate change.
Publ.Date : Wed, 08 Jan 2020 13:16:42 EST

Fish species benefit from marine protection to varying extents
Marine protected areas reduce fish mortality by limiting harvesting and reducing habitat destruction. They are often designed and implemented to promote biodiversity conservation and sustainable fisheries. New research shows these conservation efforts lead not only to an increase in the total number of fishes (individuals) in general. Protected areas in the northern Mediterranean Sea also harbor a higher number of common fish species, and significant positive network effects accumulate between individual reserves.
Publ.Date : Wed, 08 Jan 2020 13:16:32 EST

Gelatinous zooplankton makes an important contribution to marine carbon transport
Barely visible to the naked eye, gelatinous zooplankton is an important part of the marine ecosystem. In addition, the small organisms also transport large quantities of carbon into deeper layers of the ocean, thus making an important contribution to marine carbon transport.
Publ.Date : Wed, 08 Jan 2020 12:31:52 EST