Oceanography News

Courtesy of Science Daily

Welcome to Sea and Sky's Oceanography News. Here you can find links to the latest ocean news headlines in the topic of oceanography. 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.

 

Safeguarding Belize's barrier reef with conservation drones
Seeking to gain a high-tech edge over illegal fishers, the Government of Belize will use “eyes in the sky” to enforce fishing regulations in the biodiverse Glover’s Reef Marine Reserve and other reef systems in what is the first use of conservation drones to monitor marine protected areas.
Publ.Date : Tue, 22 Jul 2014 15:24:32 EDT

Vulnerability of sharks as collateral damage in commercial fishing shown by study
A new study that examined the survival rates of 12 different shark species when captured as unintentional bycatch in commercial longline fishing operations found large differences in survival rates across the 12 species, with bigeye thresher, dusky, and scalloped hammerhead being the most vulnerable.
Publ.Date : Tue, 22 Jul 2014 14:27:02 EDT

Global temperature reaches record high in June following record warmth in May
According to NOAA scientists, the globally averaged temperature over land and ocean surfaces for June 2014 was the highest for June since record keeping began in 1880. It also marked the 38th consecutive June and 352nd consecutive month with a global temperature above the 20th century average. The last below-average global temperature for June was in 1976 and the last below-average global temperature for any month was February 1985.
Publ.Date : Tue, 22 Jul 2014 09:56:52 EDT

Is Antarctic sea ice cover really setting record highs? Processing errors may be confusing the matter
Antarctic sea ice may not be expanding as fast as previously thought, new research suggests. A team of scientists say much of the increase measured for Southern Hemisphere sea ice could be due to a processing error in the satellite data. "This implies that the Antarctic sea ice trends reported in the 2007 and 2013 assessment reports from the Intergovernmental Panel on Climate Change can't both be correct: our findings show that the data used in one of the reports contains a significant error. But we have not yet been able to identify which one contains the error," says the study's lead-author.
Publ.Date : Tue, 22 Jul 2014 09:13:16 EDT

Sea level rising in western tropical Pacific anthropogenic as result of human activity, study concludes
Sea levels likely will continue to rise in the tropical Pacific Ocean off the coasts of the Philippines and northeastern Australia as humans continue to alter the climate, a study concludes. The study authors combined past sea level data gathered from both satellite altimeters and traditional tide gauges as part of the study. The goal was to find out how much a naturally occurring climate phenomenon called the Pacific Decadal Oscillation, or PDO, influences sea rise patterns in the Pacific.
Publ.Date : Sun, 20 Jul 2014 20:43:22 EDT

Mixing it up: Study provides new insight into Southern Ocean behavior
Turbulent mixing in the deep waters of the Southern Ocean, which has a profound effect on global ocean circulation and climate, varies with the strength of surface eddies -- the ocean equivalent of storms in the atmosphere -- and possibly also wind speeds. A new study is the first to link eddies at the surface to deep mixing on timescales of months to decades. This new insight into how the Southern Ocean behaves will allow scientists to build computer models that can better predict how our climate is going to change in the future.
Publ.Date : Sun, 20 Jul 2014 20:35:01 EDT

Oceans vital for possibility for alien life
Researchers have made an important step in the race to discover whether other planets could develop and sustain life. New research shows the vital role of oceans in moderating climate on Earth-like planets Until now, computer simulations of habitable climates on Earth-like planets have focused on their atmospheres. But the presence of oceans is vital for optimal climate stability and habitability.
Publ.Date : Sun, 20 Jul 2014 20:34:59 EDT

Management of South Florida coastal environments
A unique formal process and modeling framework has been developed by researchers to help manage South Florida's economically important coastal marine environments. "One of the important aspects of this new suite of tools, which includes conceptual info-graphics, integrated ecosystem models and both human and ecological indicators, is that it's exportable technology," said one expert. "It can be applied directly to the management of other coastal ecosystems."
Publ.Date : Fri, 18 Jul 2014 13:15:20 EDT

Map reveals worldwide impacts of climate change
A new map, which shows the impact climate change could have on the whole planet by the end of the century if carbon emissions continue to increase, has been developed by scientists. Temperatures on the warmest days of the year are rising by 6°C or more across Europe, parts of Asia and part of North America, it shows. Also an increase in risk of flooding across 70 per cent of Asia, and the number of days of drought increasing in parts of South America, Australia and Southern Africa are illuminated by the new map.
Publ.Date : Thu, 17 Jul 2014 09:48:59 EDT

Dredging linked to diseased corals by new study
Dredging activity near coral reefs can increase the frequency of diseases affecting corals. researchers say after a a world-first study. 'At dredging sites, we found more than twice as much coral disease than at our control sites,' says the lead author of the study. "Corals require both light and food to survive," researchers explain. "And unfortunately, dredging impacts corals on two fronts: increased turbidity means less light for photosynthesis, while increased levels of sediment falling onto the coral can interfere with their ability to feed."
Publ.Date : Wed, 16 Jul 2014 15:11:24 EDT

Whale shark fringe migration: 16-year study suggests Azore islands may play increasing role in whale shark habitat
At the fringe of the whale shark range, the volcanic Azore islands may play an increasing role for the north Atlantic population as sea surface temperatures rise.
Publ.Date : Wed, 16 Jul 2014 14:13:04 EDT

Dispersant from Deepwater Horizon spill found to persist in the environment
Dispersant compound DOSS, which decreases the size of oil droplets and hampers the formation of large oil slicks, remains associated with oil and can persist in the environment for up to four years, a study has demonstrated. The study examined samples collected from deep-sea corals and surrounding sediments collected in Dec. 2010 as well as oil-soaked sand patties found on coastal beaches since July 2010 to the present.
Publ.Date : Wed, 16 Jul 2014 12:34:54 EDT

Tracking the breakup of Arctic summer sea ice
An international team has placed sensors on and under Arctic sea ice to monitor this season's retreat. Scientists hope to understand the physics of the ice edge in order to predict summer conditions in the Arctic Ocean.
Publ.Date : Wed, 16 Jul 2014 09:05:09 EDT

Organic pollutants not factor in turtle tumor disease, study finds
A new study casts doubt on long-held suspicions that persistent organic pollutants in the environment make green turtle more susceptible to the virus that causes fibropapilomatosis, a disease that forms large benign tumors that can inhibit the animal's sight, mobility and feeding ability.
Publ.Date : Tue, 15 Jul 2014 14:26:56 EDT

Belize's lobster, conch, and fish populations rebuild in no-take zones
A new report shows that no-take zones in Belize can not only help economically valuable species such as lobster, conch, and fish recover from overfishing, but may also help re-colonize nearby reef areas. According to past studies, the recovery of lobster, conch, and other exploited species within marine protected areas with no-take zones, or fully protected reserves, could take as little as 1-6 years. Full recovery of exploited species, however, could take decades.
Publ.Date : Sun, 13 Jul 2014 15:55:16 EDT

NASA’s high-flying laser altimeter to check out summer sea ice and more
Sea ice in summer looks dramatically different than sea ice in winter, even in the polar Arctic. Summer snowmelt, pools of water on thinning ice and exposed ocean replace vast winter expanses of white snow-covered ice -- and this weekend NASA's high-flying laser altimeter begins a campaign to investigate these features.
Publ.Date : Fri, 11 Jul 2014 12:54:44 EDT

New approach to forecast hurricane intensity
New research suggests that physical conditions at the air-sea interface, where the ocean and atmosphere meet, is a key component to improve forecast models. The study offers a new method to aid in storm intensity prediction of hurricanes.
Publ.Date : Thu, 10 Jul 2014 18:36:12 EDT

Leading scientists express rising concern about 'microplastics' in the ocean
Microplastics -- microscopic particles of plastic debris -- are of increasing concern because of their widespread presence in the oceans and the potential physical and toxicological risks they pose to organisms.
Publ.Date : Thu, 10 Jul 2014 14:16:30 EDT

Significant harmful algal bloom predicted in western Lake Erie this summer
NOAA and its research partners predict that western Lake Erie will have a significant bloom of cyanobacteria, a toxic blue-green algae, during the 2014 bloom season in late summer. However, the predicted bloom is expected to be smaller than last year's intense bloom, and considerably less than the record-setting 2011 bloom. Bloom impacts will vary across the lake's western basin and are classified by an estimate of both its concentration and how far it spreads.
Publ.Date : Thu, 10 Jul 2014 14:15:53 EDT

Ocean's most abundant organisms have clear daily cycles
In every drop of ocean water, hundreds of types of bacteria can be found. Now scientists have discovered that communities of these ocean microbes have their own daily cycles -- not unlike the residents of a bustling city who tend to wake up, commute, work, and eat at the same times. What's more, it's not all about the sun. These bacteria have been observed turning on diel cycling genes at slightly different times -— suggesting a wave of transcriptional activity that passes through the microbial community each day.
Publ.Date : Thu, 10 Jul 2014 14:15:39 EDT