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Search results for “Marine Biology”

1,000+ results for "Marine Biology"

Marine sediment microbial fuel cells get a nutritional boost

Researchers at Penn State developed a novel approach to extend the life of marine microbial fuel cells by providing bacteria with chitin, found in crustacean shells. The addition increased power production and allowed for longer-term remote operation, making it suitable for ocean sediments.

SourcePenn State·JournalEnvironmental Science & Technology·DateJun 4, 2007

Marine reserves could save coral reefs

A study published in Proceedings of the National Academy of Sciences found that marine reserves can double the number of young corals, leading to a healthier reef ecosystem. The Bahamas' Exuma Cays Land and Sea Park was used as a testing ground for this innovative approach.

SourceUniversity of Exeter·JournalProceedings of the National Academy of Sciences·DateMay 14, 2007

How do marine turtles return to the same beach to lay their eggs?

Researchers have discovered that marine turtles use a relatively simple navigation system involving the Earth's magnetic field to return to the same egg-laying site. This allows them to correct any deflection caused by ocean currents, but may also cause them to wander at sea during adverse conditions.

SourceCNRS·JournalCurrent Biology·DateFeb 26, 2007

Scientists warn of climate change risk to marine turtles

Rising temperatures could lead to extreme infant mortality and declines in nesting beaches across the USA, according to a study analyzing 26 years of loggerhead turtle nesting and climate data. Conservation efforts are recommended for protecting northern breeding grounds, as male turtles are essential for population sustainability.

SourceUniversity of Exeter·JournalGlobal Change Biology·DateFeb 19, 2007

Climate model links higher temperatures to prehistoric extinction

Researchers used the Community Climate System Model (CCSM) to study the Permian extinction event, which saw 90-95% of marine species and 70% of terrestrial species die. The model found that warming ocean waters at higher latitudes due to rising CO2 levels led to a stratified ocean with little oxygen, making it deadly for marine life.

Ships bring alien jellyfish invaders to our shores

Researchers used genetic data and computer simulations to reveal that moon jellyfish migration post-dates European global shipping and trade. The study found that up to 23% of marine species in international harbors are non-indigenous, posing threats to ecosystems and causing billions of dollars in damage.

SourceUniversity of New South Wales·JournalProceedings of the National Academy of Sciences·DateAug 15, 2005

Coral reef fish larvae settle close to home

Researchers tracked coral reef fish larvae using DNA paternity analysis and marking with tetracycline, finding that one third settled within a two-hectare area near their birth site. This study documents the smallest scale of dispersal for a marine fish species, providing insights into sustainable marine reserve management.

SourceCell Press·JournalCurrent Biology·DateJul 25, 2005

Virtual reality, real ingenuity

The Marine Corps has created a dedicated virtual-reality training system for its assault amphibian vehicles, allowing for increased training capabilities due to range and ammunition supply constraints. The Virtual Environment Assault Amphibian Vehicle (VEAAV) training system was developed by a Navy-Marine Corps team in just six months.

Gulf marine reserves given new life

The Madison/Swanson and Steamboat Lumps marine reserves in the Gulf of Mexico have been given a new life after a two-year extension. Larger fish with greater egg-producing potential were found within the protected sites than outside them, indicating the reserves are working as designed.

Marine disease on the rise?

A new method by Jessica Ward and Kevin Lafferty confirms fears of rising distress in threatened populations, revealing a real underlying pattern in nature. Disease trends were found to increase in all groups except seagrasses, decapods, and sharks/rays, while fishes experienced decreased disease reports.

SourcePLOS·JournalPLOS Biology·DateApr 13, 2004

Marine Corps experience shown to enhance job prospects

A study by Penn State researchers found that employer understanding of the Marine Corps experience is crucial in seeing its value, with those who comprehend core values and life skills leading to higher salary offers. However, a majority of employers lack clear understanding, resulting in no difference being seen between hiring civilia...