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.

 

New technology allows fleets to double fishing capacity -- and deplete fish stocks faster
Technological advances are allowing commercial fishing fleets to double their fishing power every 35 years and put even more pressure on dwindling fish stocks, new research has found.
Publ.Date : Mon, 16 Sep 2019 16:08:19 EDT

Carp aquaculture in Neolithic China dating back 8,000 years
Researchers analyzed fish bones excavated from the Early Neolithic Jiahu site in Henan Province, China. By comparing the body-length distributions and species-composition ratios of the bones with findings from East Asian sites with present aquaculture, the researchers provide evidence of managed carp aquaculture at Jiahu dating back to 6200-5700 BC.
Publ.Date : Mon, 16 Sep 2019 11:40:26 EDT

Hope for coral recovery may depend on good parenting
Scientists discover coral pass beneficial algal symbionts to offspring to help them cope with rising ocean temperatures. The process occurs during reproduction sans nuclear DNA. It's the first time this has been observed.
Publ.Date : Mon, 16 Sep 2019 08:15:00 EDT

Antibiotic resistance surges in dolphins, mirroring humans
Scientists obtained a total of 733 pathogen isolates from 171 individual wild Bottlenose dolphins in Florida and found that the overall prevalence of resistance to at least one antibiotic for the 733 isolates was 88.2%. Resistance was highest to erythromycin, followed by ampicillin. It is likely that these isolates from dolphins originated from a source where antibiotics are regularly used, potentially entering the marine environment through human activities or discharges from terrestrial sources.
Publ.Date : Sun, 15 Sep 2019 13:00:55 EDT

Four billion particles of microplastics discovered in major body of water
While collecting water samples and plankton, researchers discovered a high concentration of microplastics, which are known to disrupt the marine food chain.
Publ.Date : Thu, 12 Sep 2019 11:18:19 EDT

Sulphur emissions from marine algae dropped during glacial periods
Contrary to conventional wisdom, sulphur production by tiny marine algae decreased during glacial periods, and is more closely linked to climate than previously thought, according to latest research. A clearer understanding of the link between the climate and marine phytoplankton can help scientists incorporate these impacts in future climate models.
Publ.Date : Thu, 12 Sep 2019 10:09:34 EDT

Mysterious Jurassic crocodile identified 250 years after fossil find
A prehistoric crocodile that lived around 180 million years ago has been identified -- almost 250 years after the discovery of it fossil remains.
Publ.Date : Thu, 12 Sep 2019 09:47:09 EDT

Global warming may threaten availability of essential brain-building fatty acid
By 2100, 96% of the global population may not have sufficient access to a naturally occurring essential brain-building omega-3 fatty acid, according to a study.
Publ.Date : Wed, 11 Sep 2019 21:24:26 EDT

Mako shark tracking off west coast reveals 'impressive' memory and navigation
The largest effort ever to tag and track shortfin mako sharks off the West Coast has found that they can travel nearly 12,000 miles in a year. The sharks range far offshore, but regularly return to productive waters off Southern California, an important feeding and nursery area for the species.
Publ.Date : Wed, 11 Sep 2019 10:15:15 EDT

How long does a whale feed? New data gives insight into blue and fin whale behavior
Researchers using electronic tags were able to monitor blue and fin whales off the coast of Southern California over multiple weeks, providing new insight into the feeding behaviors of the two largest whale species.
Publ.Date : Wed, 11 Sep 2019 07:42:06 EDT

Electric eel produces highest voltage discharge of any known animal
South American rivers are home to at least three different species of electric eels, including a newly identified species capable of generating a greater electrical discharge than any other known animal, according to a new analysis of 107 fish collected in Brazil, French Guiana, Guyana and Suriname in recent years.
Publ.Date : Tue, 10 Sep 2019 13:43:23 EDT

Microorganisms reduce methane release from the ocean
Bacteria in the Pacific Ocean remove large amounts of the greenhouse gas methane.
Publ.Date : Tue, 10 Sep 2019 13:43:09 EDT

Do animals control earth's oxygen level?
For the first time, researchers have measured how the production of algae and the Earth's oxygen level affect each other -- what you might call 'Earth's heartbeat'. Studies of 540 million-year-old limestone indicate that it is not just the oxygen level that affects animals, but that animals can indeed regulate the oxygen level.
Publ.Date : Tue, 10 Sep 2019 10:54:01 EDT

Tracking sulfur-based metabolism in the open ocean
Oceanographers found that marine microbes process sulfonate, a plentiful marine nutrient, in a way that is similar to soils.
Publ.Date : Fri, 06 Sep 2019 09:06:08 EDT

Kilauea lava fuels phytoplankton bloom off Hawai'i Island
When Kilauea Volcano erupted in 2018, it injected millions of cubic feet of molten lava into the nutrient-poor waters off the Big Island of Hawai'i. The lava-impacted seawater contained high concentrations of nutrients that stimulated phytoplankton growth, resulting in an extensive plume of microbes that was detectable by satellite.
Publ.Date : Thu, 05 Sep 2019 14:54:13 EDT

Breakdown in coral spawning places species at risk of extinction
Synchronized coral spawning has become erratic, endangering the long-term survival of coral species, researchers say.
Publ.Date : Thu, 05 Sep 2019 14:53:36 EDT

Unique report details dermatological progression and effective treatment of a severe jellyfish sting
A detailed case report documents the dermatological progression of a patient stung by a jellyfish off the coast of Cambodia. The aim of this report is to guide clinicians and patients to understand what to expect after such a sting and steps to increase the probability of a full recovery.
Publ.Date : Thu, 05 Sep 2019 12:45:17 EDT

Climate change could bring short-term gain, long-term pain for loggerhead turtles
New research suggests that while some loggerheads will suffer from the effects of a changing climate, populations in certain nesting areas could stand to reap important short-term benefits from the shifting environmental conditions.
Publ.Date : Thu, 05 Sep 2019 11:16:58 EDT

Underwater soundscapes reveal differences in marine environments
Storms, boat traffic, animal noises and more contribute to the underwater sound environment in the ocean, even in areas considered protected.
Publ.Date : Wed, 04 Sep 2019 15:39:58 EDT

New viruses discovered in endangered wild Pacific salmon populations
Three new viruses -- including one from a group of viruses never before shown to infect fish -- have been discovered in endangered Chinook and sockeye salmon populations. While the impact of the viruses on salmon health isn't yet known, all three are related to viruses that cause serious disease in other species.
Publ.Date : Wed, 04 Sep 2019 09:11:20 EDT