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.

 

Scientists study predator-prey behavior between sharks, turtles
A new collaborative study examined predator-prey interactions between tiger sharks and sea turtles off the Northwestern Atlantic Ocean. The research team used long-term satellite tagging data from large tiger sharks and adult female loggerhead sea turtles, common prey of tiger sharks, to examine their movement patterns and evaluate if turtles modify their behaviors to reduce their chances of a shark attack when turtle and shark home ranges overlapped.
Publ.Date : Mon, 27 Jul 2015 12:03:28 EDT

Parasitic flatworms flout global biodiversity patterns
The odds of being attacked and castrated by a variety of parasitic flatworms increases for marine horn snails the farther they are found from the tropics. A research team discovered this exception to an otherwise globally observed pattern -- usually biodiversity is greatest in the tropics and decreases toward the poles.
Publ.Date : Sat, 25 Jul 2015 21:36:31 EDT

Small oxygen jump in atmosphere helped enable animals take first breaths
Measurements of iron speciation in ancient rocks were used to construct the chemistry of ancient oceans. Analysis suggests that it took less oxygen than previously thought to trigger the appearance of complicated life forms.
Publ.Date : Thu, 23 Jul 2015 12:56:15 EDT

White-tailed eagles: No competitors for fishermen
White-tailed eagles represent no competition for fishermen. This has been shown by researchers based on the first field study about the foraging behavior of the white-tailed eagle (Haliaeetus albicilla) in Northern Germany. The study allows important insights in the hunting behavior and relevant conservation measures of this species.
Publ.Date : Thu, 23 Jul 2015 10:10:24 EDT

Keep Tahoe blue? Less algae, not clarity, key for lake's blueness
The assumption that Lake Tahoe's blueness is tied to clarity has driven advocacy and management efforts in the Lake Tahoe Basin for decades. But the report's findings show that at times of the year when clarity increases, blueness decreases, and vice versa.
Publ.Date : Thu, 23 Jul 2015 08:37:25 EDT

Climate change reduces coral reefs' ability to protect coasts
Climate change reduces coral reefs' ability to protect coasts.
Publ.Date : Wed, 22 Jul 2015 14:14:28 EDT

Pacific reef growth can match rising sea, study suggests
The coral reefs that have protected Pacific Islanders from storm waves for thousands of years could grow rapidly enough to keep up with escalating sea levels if ocean temperatures do not rise too quickly, according to a new study.
Publ.Date : Wed, 22 Jul 2015 13:04:14 EDT

Glimmer of hope: Fertile corals discovered in deeper waters off US Virgin Islands
Researchers discovered a threatened coral species that lives in deeper waters off the US Virgin Islands is more fertile than its shallow-water counterparts. The new study showed that mountainous star corals (Orbicella faveolata) located at nearly 140 feet deep may produce one trillion more eggs per square kilometer than those on shallow reefs.
Publ.Date : Tue, 21 Jul 2015 13:48:33 EDT

Prawn solution to spread of deadly disease identified
A deadly disease may have met its match: a bug-eyed, pint-sized crustacean. The river prawn, a natural predator of parasite-carrying snails, proves effective at curbing the spread of schistosomiasis in West Africa, new research has found.
Publ.Date : Mon, 20 Jul 2015 15:42:04 EDT

Ocean acidification may cause dramatic changes to phytoplankton
Marine biologists have found that an increased ocean acidification will dramatically affect global populations of phytoplankton -- microorganisms on the ocean surface that make up the base of the marine food chain.
Publ.Date : Mon, 20 Jul 2015 13:32:52 EDT

Why offspring cope better with climate change: It's all in the genes
In a world first study, researchers have unlocked the genetic mystery of why some fish are able to adjust to warming oceans. Researchers examined how the fish's genes responded after several generations living at higher temperatures predicted under climate change.
Publ.Date : Mon, 20 Jul 2015 11:47:39 EDT

Marine travellers best able to adapt to warming waters
Marine species that already roam far and wide throughout our oceans are extending their territories further and faster in response to climate change, according to new research an international team of biodiversity experts. The study found that while species that have large ranges are able to make their way to cooler waters, small-ranging species are in increased jeopardy as our planet's oceans continue to warm.
Publ.Date : Mon, 20 Jul 2015 09:24:38 EDT

Marine plankton brighten clouds over Southern Ocean
Summertime plankton blooms in the Southern Ocean play a significant role in generating brighter clouds overhead.
Publ.Date : Fri, 17 Jul 2015 15:36:39 EDT

A fish too deep for science: New goby fish discovered
Scientists have described a new goby fish species that lives deeper than its closest relatives and had gone unnoticed up until now. It has been discovered between 70 and 80 m in the southern Caribbean.
Publ.Date : Fri, 17 Jul 2015 10:49:17 EDT

Polar bears threatened: Experience limited energy savings in summer
Some earlier research suggested that polar bears could, at least partially, compensate for longer summer food deprivation by entering a state of lowered activity and reduced metabolic rate similar to winter hibernation -- a so-called 'walking hibernation.' But new research shows that the summer activity and body temperature of bears on shore and on ice were typical of fasting, non-hibernating mammals, with little indication of 'walking hibernation.'
Publ.Date : Thu, 16 Jul 2015 16:03:22 EDT

Are marine ecosystems headed toward a new productivity regime?
Phytoplankton have been projected to produce less organic material as the oceans' temperatures rise -- with carry-on effects for higher levels of the food web. Based on new climate model simulations, a team of scientists suggests now that this assumption might be misleading. According to the researchers, ocean productivity might be pushed into a completely new regime in the more distant future.
Publ.Date : Thu, 16 Jul 2015 11:10:00 EDT

Closer look at microorganism provides insight on carbon cycling
A research team has reconstructed the crystal structure of BAP, a protein involved in the process by which marine archaea release carbon, to determine how it functioned, as well as its larger role in carbon cycling in marine sediments.
Publ.Date : Wed, 15 Jul 2015 18:33:39 EDT

The secret to the sea sapphire's colors -- and invisibility
Sapphirina, or sea sapphire, has been called 'the most beautiful animal you've never seen,' and it could be one of the most magical. Some of the tiny, little-known copepods appear to flash in and out of brilliantly colored blue, violet or red existence. Now scientists are figuring out the trick to their hues and their invisibility. The findings could inspire the next generation of optical technologies.
Publ.Date : Wed, 15 Jul 2015 12:24:07 EDT

We like seafood, but we don't eat enough, report suggests
Nearly half of Floridians eat more seafood than they did five to 10 years ago, but 40 percent still do not eat the federally recommended dietary intake of seafood. Floridians also know seafood is good for them, and they like their seafood caught or harvested in the Sunshine State. But many are not sure they’d know Florida seafood if they saw it, and they’re hesitant to pay the higher cost of local seafood.
Publ.Date : Wed, 15 Jul 2015 09:12:48 EDT

Advanced composites may borrow designs from deep-sea shrimp
New research is revealing details about how the exoskeleton of a certain type of deep-sea shrimp allows the animal to survive scalding hot waters in hydrothermal vents thousands of feet under water. Insights into the complex molecular behavior of the materials could have implications for the design of new synthetic armor capable of withstanding environmental extremes.
Publ.Date : Tue, 14 Jul 2015 16:09:18 EDT