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.

 

The sound of a healthy reef
A new study will help researchers understand the ways that marine animal larvae use sound as a cue to settle on coral reefs. The study has determined that sounds created by adult fish and invertebrates may not travel far enough for larvae -- which hatch in open ocean -- to hear them, meaning that the larvae might rely on other means to home in on a reef system.
Publ.Date : Fri, 26 Aug 2016 14:23:24 EDT

Hiding in plain sight: Vast reef found hiding behind Great Barrier Reef
Scientists working with laser data have discovered a vast reef behind the familiar Great Barrier Reef. High-resolution seafloor data provided by LiDAR-equipped aircraft have revealed great fields of unusual donut-shaped circular mounds, each 200-300 meters across and up to 10 meters deep at the center.
Publ.Date : Fri, 26 Aug 2016 10:48:34 EDT

Perfluorinated compounds found in African crocodiles, American alligators
All plasma samples drawn from 125 alligators in Florida and South Carolina and 45 crocodiles in South Africa contain at least four different PFAAs.
Publ.Date : Thu, 25 Aug 2016 11:32:13 EDT

Well-wrapped feces allow lobsters to eat jellyfish stingers without injury
Lobsters eat jellyfish without harm from the venomous stingers due to a series of physical adaptations. Researchers examined lobster feces to discover that lobsters surround their servings of jellyfish in protective membranes that prevent the stingers from injecting their venom. The results are vial for aquaculture efforts to sustainably farm lobsters for diners around the world.
Publ.Date : Thu, 25 Aug 2016 11:32:08 EDT

Sea temperature and the lunar cycle predict the arrival of jellyfish in Israel
Large swarms of jellyfish reach the coast of Israel when the sea temperature ranges between 28.2 and 30 degrees Celsius and during the full moon, according to a new study. The study reveals, for the first time, the link between sea temperature and the lunar cycle and the arrival of swarms of Jellyfish s along the coast of Israel.
Publ.Date : Thu, 25 Aug 2016 10:23:30 EDT

Arctic gives clues on worst mass extinction of life
Extreme global warming 252 million years ago caused a severe mass extinction of life on Earth. It took life up to 9 million years to recover. New study finds clues in the Arctic as to why this recovery took so long.
Publ.Date : Wed, 24 Aug 2016 11:11:00 EDT

Whales in the desert?
In Cerro Colorado, located in the Ica Desert of Peru, sedimentary sequences dating back nine million years have been found to host the fossil skeletons of hundreds of marine vertebrates. In 2008, remains of a giant raptorial sperm whale, Livyatan melvillei, were discovered at this site. In September 2014, the same international team of researchers found a partial skeleton of a mysticete whale in a rock boulder.
Publ.Date : Wed, 24 Aug 2016 11:09:16 EDT

Ocean acidification threatens cod recruitment in the Atlantic
Increasing ocean acidification could double the mortality of newly hatched cod larvae. Researchers quantified mortality rates of cod at conditions which the fish may experience towards the end of the century. They integrated results of two experiments in model calculations on stock dynamics. The scenarios showed that the recruitment could decrease to between one quarter and one twelfth of last decades' recruitment -- a strong call for action for fisheries management.
Publ.Date : Wed, 24 Aug 2016 11:09:14 EDT

Seagrass restoration threatened by fungi
Seagrass seed is killed by waterborne fungi that are related to the well-known potato blight, biologists have discovered. These fungi, which have not previously been found in seawater, hinder seed germination and thus prevent the restoration of seagrass.
Publ.Date : Tue, 23 Aug 2016 21:29:44 EDT

BPA can disrupt painted turtles' brain development could be a population health concern
Often, aquatic environments such as rivers and streams become reservoirs for BPA, affecting turtle habitats. Last year, a team of researchers determined that BPA can disrupt sexual function in painted turtles. Now, the team has shown that BPA also can induce behavioral changes in turtles, reprogramming male turtle brains to show behavior common in females. Researchers worry this could lead to population declines in painted turtles.
Publ.Date : Tue, 23 Aug 2016 16:56:31 EDT

Rising temperatures could accelerate radiation induced DNA effects in marine mussels
Increased sea temperatures could have a dramatic effect on radiation-induced damage in marine invertebrates, a new study suggests.
Publ.Date : Tue, 23 Aug 2016 10:32:16 EDT

Reef castaways: Can coral make it across Darwin's 'impassable' barrier?
An international team of researchers have shown that vulnerable coral populations in the eastern tropical Pacific have been completely isolated from the rest of the Pacific Ocean for at least the past two decades.
Publ.Date : Tue, 23 Aug 2016 08:33:15 EDT

Fighting barnacle buildup with biology
Biological growth along the bottoms of boats is more than just an eyesore. Biofouling, as it is known, slows down ships and impedes the readiness of emergency response and military vessels. A new study identifies key developmental steps these organisms must take to metamorphose from their larval to adult state. Understanding this process could lead to new technologies to prevent the organisms from attaching to ships in the first place.
Publ.Date : Mon, 22 Aug 2016 15:59:28 EDT

In the ocean, clever camouflage beats super sight
Some fish blend seamlessly into their watery surroundings with help from their silvery reflective skin. Researchers have long assumed that squid, shrimp and other ocean animals could see through this disguise, thanks to an ability to detect a property of light -- called polarization -- that humans can't see. But a new study finds that not even polarization vision helps animals spot silvery fish from afar.
Publ.Date : Mon, 22 Aug 2016 14:42:38 EDT

New discovery about sensory system of deep-sea fish
Little is known about most of the fishes that live deep in the oceans, where the pressures are extreme, light is nearly absent, and the water temperatures are especially low. These fishes are difficult to observe in their natural environment, and it is equally difficult to bring undamaged specimens to the surface or conduct experiments on them. New research provides new information on the dragonfish, a deep-sea fish, suggesting that it has a highly evolved system for detecting water flows.
Publ.Date : Fri, 19 Aug 2016 16:23:50 EDT

Mathematical analysis conducted of a rare cavernicolous crustacean
A scientific collaboration has discovered previously unknown regularities of arthropod limbs based on studies of the remipede Speleonectes tulumensis, a rare crustacean found in saline waters of caves.
Publ.Date : Fri, 19 Aug 2016 11:42:10 EDT

Mussel flexing: Bivalve save drought-stricken marshes, research finds
As coastal ecosystems feel the heat of climate change worldwide, new research shows the humble mussel and marsh grass form an intimate interaction known as mutualism that benefits both partner species and may be critical to helping these ecosystems bounce back from extreme climatic events such as drought.
Publ.Date : Thu, 18 Aug 2016 13:15:27 EDT

Natural compound from a deep-water marine sponge found to reduce pancreatic tumor size
A deep-water marine sponge collected off of Fort Lauderdale’s coast contains leiodermatolide, a natural product that has the ability to inhibit the growth of cancer cells as well as block cancer cells from dividing using extremely low concentrations of the compound, report scientists.
Publ.Date : Thu, 18 Aug 2016 09:05:58 EDT

Recent connection between North and South America reaffirmed
Long ago, one great ocean flowed between North and South America. When the Isthmus of Panama joined the continents, it also separated the Atlantic from the Pacific Ocean. If this took place much earlier than the accepted date of 3 million years ago as recently asserted by some, the implications for both land and sea life would be revolutionary. A new paper firmly set the date at 2.8 million years ago.
Publ.Date : Wed, 17 Aug 2016 14:27:51 EDT

Mix of marine zones matters most for prey fish
In a first-of-its-kind study, scientists have discovered a mosaic mix of marine zones could benefit populations of prey fishes.
Publ.Date : Wed, 17 Aug 2016 10:17:21 EDT