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.

 

UV-sensing protein in brain of marine annelid zooplankton
Larvae of a marine ragworm Platynereis dumerilii have been studied as a zooplankton model, and possess photoreceptor cells in the brain to regulate circadian swimming behavior. This study revealed that a photoreceptive protein in the brain photoreceptor cells is UV (ultra-violet) sensitive. Since avoidance of UV irradiation is a major cause of a large-scale daily movement of zooplankton, the UV sensor in the brain would be important for physiology and ecology of the zooplankton model.
Publ.Date : Thu, 22 Jun 2017 12:20:19 EDT

Lessons from whale population collapse could help future species at risk
There were warning signs that populations of commercially harvested whales were heading for global collapse up to 40 years before the event, a study of historic whaling records has revealed.
Publ.Date : Thu, 22 Jun 2017 10:40:39 EDT

Algae: The final frontier
Algae dominate the oceans that cover nearly three-quarters of our planet, and produce half of the oxygen that we breathe. And yet fewer than 10 percent of the algae have been formally described in the scientific literature, as noted in a new review.
Publ.Date : Wed, 21 Jun 2017 16:59:31 EDT

Warming temperatures threaten sea turtles
Warmer temperatures associated with climate change may lead to higher numbers of female sea turtles and increased nest failure, suggests a new report.
Publ.Date : Wed, 21 Jun 2017 11:39:57 EDT

Deaths of migrating wildebeests key to Serengeti's vibrant ecosystem
Wildebeest carcasses, casualties of the world's largest overland animal migration, pile up annually on the banks of the Mara River in Africa and play a crucial role in vibrant ecosystem of the Serengeti plains, a new study has found.
Publ.Date : Mon, 19 Jun 2017 15:15:23 EDT

Holes drilled in shells point to bigger predators picking on small prey
The drill holes left in fossil shells by hunters such as snails and slugs show marine predators have grown steadily bigger and more powerful over time but stuck to picking off small prey, rather than using their added heft to pursue larger quarry, new research shows.
Publ.Date : Thu, 15 Jun 2017 14:27:28 EDT

Distant fish relatives share looks
Scientists have found evidence that even distantly related Australian fish species have evolved to look and act like each other, which confirms a central tenet of evolutionary theory.
Publ.Date : Thu, 15 Jun 2017 10:06:28 EDT

Eyes in the sky reveal extent of gray seal recovery
Using research drones, thermal cameras and free images from Google Earth, two studies confirm that gray seals are making a comeback off the New England and eastern Canadian coasts. The findings help confirm that seal conservation efforts are working, and that these remote eye-in-the sky technologies make it easier and safer for scientists to study migratory wildlife in remote locations and estimate their numbers accurately.
Publ.Date : Wed, 14 Jun 2017 13:37:42 EDT

Polar bears' declining mercury levels likely due to climate-related shifts
To understand how human activities are affecting the planet, scientists often study the health of animals in the wild. Now a new study finds that the levels of mercury in some polar bears are declining. But rather than heralding a drop in mercury in the environment, the decrease could indicate how climate change has led the animals to shift foraging habits, which has affected their diets and weight.
Publ.Date : Wed, 14 Jun 2017 09:18:20 EDT

Spying on fish love calls could help protect them from overfishing
Scientists have discovered a way to use the incredibly loud, distinctive sounds that fish make when they gather to spawn to protect them from overfishing.
Publ.Date : Tue, 13 Jun 2017 10:19:59 EDT

Floodplain farm fields benefit juvenile salmon
Central Valley rice fields managed as floodplains during the winter can create surrogate wetland habitat for native fish, study shows.
Publ.Date : Mon, 12 Jun 2017 17:09:27 EDT

Researchers find glass eels use internal compass to find their way home
Scientists are closer to unraveling the long-standing mystery of how tiny glass eel larvae, which begin their lives as hatchlings in the Sargasso Sea, know when and where to 'hop off' the Gulf Stream toward European coastlines to live out their adult lives in coastal estuaries.
Publ.Date : Mon, 12 Jun 2017 13:55:09 EDT

The secrets of tooth calcium revealed
Two studies on calcium isotopes in teeth have provided new insights into both the extinction of the marine reptiles and weaning age in humans. The findings open new avenues for research in anthropology and paleontology, say researchers.
Publ.Date : Mon, 12 Jun 2017 09:44:00 EDT

Soft shelled turtles, food in China, likely spread cholera
The pathogen, Vibrio cholerae can colonize the surfaces, as well as the intestines of soft shelled turtles. This finding is strong evidence that soft shelled turtles in China, where they are grown for human consumption, are spreading cholera.
Publ.Date : Fri, 09 Jun 2017 13:38:15 EDT

Lost ecosystem found buried in mud of southern California coastal waters
Paleontologists investigating the sea bed off California have discovered a lost ecosystem that for thousands of years had nurtured communities of scallops and shelled marine organisms called brachiopods. They had died off by the early 20th century, replaced by the mud-dwellling burrowing clams that inhabit this seabed today.
Publ.Date : Fri, 09 Jun 2017 09:12:20 EDT

Scientists advancing hope for reefs in the Philippines
Researchers have returned from the Philippines with new species discoveries and deeper insights into threatened coral reef ecosystems.
Publ.Date : Thu, 08 Jun 2017 14:55:29 EDT

Extinct early whales listened like their relatives on land, fossil evidence shows
Whales show surprisingly vast differences in hearing ability. Baleen whales tune into infrasonic sounds to communicate over long distances. Toothed whales do just the opposite, relying on ultrasonic frequencies too high for humans to hear. Now researchers have fossil evidence from extinct early whale species to suggest that those differences in hearing arose only after whales evolved into the fully aquatic animals we know today.
Publ.Date : Thu, 08 Jun 2017 12:36:50 EDT

Sea urchin protein provides insights into self-assembly of skeletal structures
Calcium carbonate combined with sea urchin proteins form tiny stacks of 'bricks' that creates a structure which provides a tough, exoskeleton defense for the sea creature. Researchers studying the protein may enable the development of tunable fracture resistant materials that one day will find its use in developing lightweight 'armor' and 'sturdier' dental composites.
Publ.Date : Wed, 07 Jun 2017 22:24:26 EDT

Finding new homes won't help emperor penguins cope with climate change
Unlike other species that migrate successfully to escape the wrath of climate change, a new study shows that dispersal may help sustain global Emperor penguin populations for a limited time, but, as sea ice conditions continue to deteriorate, the 54 colonies that exist today will face devastating declines by the end of this century.
Publ.Date : Wed, 07 Jun 2017 15:12:08 EDT

Female Steller sea lions tend to breed near their birthplace
Female Steller sea lions tend to breed at or near the rookery where they were born, according to a study.
Publ.Date : Wed, 07 Jun 2017 14:13:44 EDT