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.

 

Rising sea temperatures threaten survival of juvenile albatross
Changes in sea surface temperature affect the survival of albatross during their first year at sea, resulting in a reduced population growth rate when temperatures are warmer than the current average, a new study has revealed.
Publ.Date : Mon, 18 Jun 2018 10:26:05 EDT

Great white sharks dive deep into warm-water whirlpools in the Atlantic
Tracking data from two great white sharks reveals that they spend more time deep inside warm-water eddies, suggesting that's where they like to feed.
Publ.Date : Mon, 18 Jun 2018 10:25:42 EDT

Key ocean fish can prevail with changes to farmed fish, livestock diets
A new study shows that if current aquaculture and agriculture practices remain unchanged into the future, wild forage fish populations likely will be overextended by the year 2050, and possibly sooner. However, making sensible changes in aquaculture and agriculture production would avoid reaching that threshold.
Publ.Date : Thu, 14 Jun 2018 21:38:22 EDT

Climate change has fish moving faster than regulations can keep up
The world's system for allocating fish stocks is being outpaced by the movement of fish species in response to climate change, according to a study undertaken by an international team of marine ecologists, fisheries and social scientists, and lawyers.
Publ.Date : Thu, 14 Jun 2018 21:37:27 EDT

Stress test to predict how diatoms will react to ocean acidification
Researchers have shown that diatoms can withstand population collapse in an acidified environment by conserving valuable energy normally used for carbon dioxide consumption.
Publ.Date : Wed, 13 Jun 2018 16:26:56 EDT

Sea urchins see with their feet
Sea urchins lack eyes, but can see with their tentacle-like tube feet instead, previous research has indicated. Now, researchers have tested their vision in a new study, and shown that while sea urchins have fairly low resolution vision -- it is good enough to fulfill their basic needs.
Publ.Date : Tue, 12 Jun 2018 10:57:24 EDT

Putting animals in their best light: Some shades of LED lamps threaten wildlife
A research team identifies harmful effects to wildlife as LED lights proliferate. Some hues, including blues and whites, imperil creatures while other wavelengths are more benign. They devised an interactive web-based tool to help people make wildlife-friendly choices in outdoor lighting.
Publ.Date : Tue, 12 Jun 2018 09:06:18 EDT

Volcanic activity, declining ocean oxygen triggered mass extinction of ancient organisms
Global climate change, fueled by skyrocketing levels of atmospheric carbon dioxide, is siphoning oxygen from today's oceans at an alarming pace -- so fast that scientists aren't entirely sure how the planet will respond.
Publ.Date : Mon, 11 Jun 2018 16:05:10 EDT

Fueling a deep-sea ecosystem
Miles beneath the ocean's surface in the dark abyss, vast communities of subseafloor microbes at deep-sea hot springs are converting chemicals into energy that allows deep-sea life to survive -- and even thrive -- in a world without sunlight. Until now, however, measuring the productivity of subseafloor microbe communities -- or how fast they oxidize chemicals and the amount of carbon they produce -- has been nearly impossible.
Publ.Date : Mon, 11 Jun 2018 15:27:42 EDT

Proactive conservation management strategy urged for North Atlantic right whale
Marine ecologists urge a more proactive conservation management strategy for the North Atlantic right whale.
Publ.Date : Mon, 11 Jun 2018 14:41:26 EDT

Large-scale study indicates novel, abundant nitrogen-fixing microbes in surface ocean
A large-scale study of the Earth's surface ocean indicates the microbes responsible for fixing nitrogen there -- previously thought to be almost exclusively photosynthetic cyanobacteria -- include an abundant and widely distributed suite of non-photosynthetic bacterial populations.
Publ.Date : Mon, 11 Jun 2018 13:34:53 EDT

Secret to whale shark hotspots
A study has uncovered the secret to why endangered whale sharks gather on mass at just a handful of locations around the world.
Publ.Date : Fri, 08 Jun 2018 10:33:30 EDT

Secrets of fish population changes revealed
Populations of fish in the ocean are notoriously variable, waxing and waning in often unpredictable ways. Knowing what drives changes in fish population sizes is important for managing fisheries and conserving species. For the first time, scientists have linked the ecology of adult fish populations inhabiting coral reefs with the dispersal of baby fish between reefs, reporting the dynamics of a living network called a 'marine metapopulation.'
Publ.Date : Fri, 08 Jun 2018 10:19:32 EDT

Nutritional quality of fish and squid reduced by warm water events
The nutritional quality of fish and squid deteriorates under warm water events, research reveals -- with implications for the marine environment, marine predators and fisheries capturing food for human consumption.
Publ.Date : Fri, 08 Jun 2018 09:36:54 EDT

Gulf of Mexico 'dead zone' forecasted to exceed the size of Connecticut
Scientists have predicted the dead zone, or area with little to no oxygen in the northern Gulf of Mexico, will become larger than the state of Connecticut by the end of July, according to a new report. While there are more than 500 dead zones around the world, the northern Gulf of Mexico dead zone is the second largest human-caused coastal hypoxic area in the world.
Publ.Date : Thu, 07 Jun 2018 12:07:24 EDT

Study of sleeping fur seals provides insight into the function of REM sleep
All land mammals and birds have two types of sleep: rapid eye movement (REM) and non-REM (also called slow-wave sleep). Earlier evidence had suggested that REM sleep is essential for physical and mental well-being and learning, but the underlying function of REM sleep has been a mystery. New insight into the function of REM sleep, based on studies of an unlikely animal: the fur seal.
Publ.Date : Thu, 07 Jun 2018 11:27:53 EDT

Algal partner responds to climate-change stresses more strongly than coral host
A new study puts a surprising twist into our understanding of how coral reefs react to ocean warming and acidification and may offer an early warning system for warmth-induced coral bleaching events.
Publ.Date : Thu, 07 Jun 2018 11:26:57 EDT

Dolphins deliberately killed for use as bait in global fisheries
Ahead of World Oceans Day, new research exposes the practice of killing of aquatic mammals, including some listed as endangered, for the express purpose of securing bait for global fisheries. The practice is widespread globally, but most common in Latin America and Asia. The study reveals there is little information on the impact of this harvesting on targeted mammal populations and urges increased monitoring.
Publ.Date : Thu, 07 Jun 2018 08:26:23 EDT

How the quality of red sea urchin roe -- uni -- influences fishermen's behavior
Sea urchin roe is an acquired taste. Served as sushi, uni -- the Japanese word for this delicacy -- is actually the reproductive organ of the sea urchin. One of the most highly valued coastal fisheries in California is the red sea urchin (Mesocentrotus franciscanus), found in the Pacific Ocean from Alaska to Baja California. Red sea urchins are sold to processors who determine the price of each uni batch based on its quality -- a function of its size, shape, texture and color (usually orange to yellow).
Publ.Date : Wed, 06 Jun 2018 17:01:58 EDT

Patenting marine genetic resources: Who owns ocean biodiversity?
Marine organisms have evolved to thrive in various ocean environments, resulting in unique adaptations that make them the object of commercial interest. Researchers have identified 862 marine species, with a total of 12,998 genetic sequences associated with a patent. They found that a single transnational corporation (BASF, the world's largest chemical manufacturer) has registered 47 percent of these sequences.
Publ.Date : Wed, 06 Jun 2018 14:37:39 EDT