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Tag: "seaweed" at biology news

Seaweed could make junk food healthier

...weed, say British scientists. The highly-fibrous seaweed extract, alginate, could be used to increase the f... paper examines the properties of a brown-coloured seaweed called Lessonia and Laminaria, found in the Far East, South America and parts of Norway and Scotland...

Beach pollution is worst during new and full moon

...uted groundwater. "Beach sands and wrack [piles of seaweed and animal remains that wash ashore] have been shown at freshwater beaches to harbor fecal indicator bacteria and even pathogenic bacteria," Boehm says. "Beach managers who want to improve water quality at their beaches should investigate the potenti...

Seaweed yields new compounds with pharmaceutical potential

... with pharmaceutical potential in a species of red seaweed that lives in the shallow coral reef along the coa... source of these new molecular structures is a red seaweed (Callophycus serratus) collected from four Fijian sites. Among the sites, researchers found variatio...

Antibacterial coatings cut infection rates

...s originally extracted from Australian macro algae seaweed that grows off the eastern coast. The chemicals produced by these macro algae were found to prevent the colonisation of microbial organisms such as bacteria and fungi on their surfaces, helping to keep the algae clean. Researchers at the University o...

Expedition discovers marine treasures

...dition in January encountered new species of fish, seaweed and other ocean life at little-studied Saba Bank Atoll, a coral-crowned seamount 250 kilometers southeast of Puerto Rico in the Dutch Windward Islands. In a series of dives buffeted by high winds and strong currents, scientists from Conservation Int...

How marine reserves are giving coral reefs a helping hand

... reef surfaces. The fish use their teeth to remove seaweed from the reef which allows new corals to settle and grow.This grazing process is essential to the health of the system." "Caribbean reefs are still trying to recover from the devastating effects of an El Nino bleaching event in 1998 which caused wid...

Batfish to the rescue!

...ved a coral reef that was being choked to death by seaweed ?although the fish was never previously known as a weed-eater. Scientists at the ARC Centre of Excellence for Coral Reef Studies (CoECRS) who were studying how coral reefs are lost to weed were astonished when, after removing a cage from a partic...

Fish species plays surprise role in aiding coral reef recovery

... surgeonfishes, which are the routine consumers of seaweed on coral reefs, were unable to reverse runaway algal blooms. The study’s findings highlight the unexpected importance of a single rare species in the recovery of coral reefs, and potentially contribute to the identification and future protection ...

Chemicals in brown algae may protect against skin cancer

Substances extracted from a marine seaweed may protect against skin cancer caused by too much sun, new research suggests. The animal study indicates that chemicals called brown algae polyphenols (BAPs), which are found in a type of brown marine seaweed, might protect against skin cancers ca...

Envisat captures first image of Sargassum from space

Sargassum seaweed has been detected from space for the first time using optical radiance data from the Medium Resolution Imaging Spectrometer (MERIS) aboard Envisat. The ability to monitor Sargassum globally will allow researchers to understand better the primary prod...

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