Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Controlling blooming algae

21.04.2008
When a red tide kisses the shore, you know it's time to get out of the water. Toxic algal blooms have always afflicted lakes and seas, but they have become increasingly common because of pollution and changing environmental conditions. Now, research to be published in the International Journal of Environment and Health, offers insights into how such blooms could be controlled.

Milena Bruno and colleagues in the Department of Environment and Primary Prevention, at the Istituto Superiore di Sanità, in Rome, Italy, point out that bodies of water across the globe have undergone increasing eutrophication over the last four decades. Changing nutrient and pollution levels due to the release of human waste, agricultural run-off, fish farming, and changing global climatic conditions has led to an increase in algal blooms. Inadvertent transportation of dormant algal cysts in ship ballasts has also contributed to them becoming more widespread.

"Algal blooms, and harmful algal blooms in particular, have multiplied enormously throughout the world over the last 40 years," says Bruno, "in parallel with human population growth and industrialization." The researchers add that extreme cases are seen in North America, where incidence increased from 200 to 700 per year from the 1970s to the 1990s, in Japan, and in Europe.

The team has suggested a range of new control strategies, including a sterilization program for ensuring shipping ballast water does not act as a transportation system for algae. They also point to success in treating algal blooms using clay particles to kill the algal cells.

The researchers also suggest that remote sensing and satellite imaging technology could be used to monitor algal growth around aquaculture areas where corralled fish and shellfish are grown, particularly in the Far East. Seafood contaminated with algal toxins can lead to severe and potentially lethal outbreaks of food poisoning.

They add that these and other strategies should be operated alongside a medical information network that can track health problems, such as dermatitis in swimmers and food poisoning, related to algal blooms.

"Bearing in mind the problems caused by the presence of algal blooms and the difficulties involved in eliminating them, it is obvious that adequate measures of prevention and the proper management of the ecology along coasts and in the open sea are of prime importance," Bruno says.

Albert Ang | alfa
Further information:
http://www.inderscience.com

More articles from Ecology, The Environment and Conservation:

nachricht Global threat to primates concerns us all
19.01.2017 | Deutsches Primatenzentrum GmbH - Leibniz-Institut für Primatenforschung

nachricht Reducing household waste with less energy
18.01.2017 | FIZ Karlsruhe – Leibniz-Institut für Informationsinfrastruktur GmbH

All articles from Ecology, The Environment and Conservation >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Quantum optical sensor for the first time tested in space – with a laser system from Berlin

For the first time ever, a cloud of ultra-cold atoms has been successfully created in space on board of a sounding rocket. The MAIUS mission demonstrates that quantum optical sensors can be operated even in harsh environments like space – a prerequi-site for finding answers to the most challenging questions of fundamental physics and an important innovation driver for everyday applications.

According to Albert Einstein's Equivalence Principle, all bodies are accelerated at the same rate by the Earth's gravity, regardless of their properties. This...

Im Focus: Traffic jam in empty space

New success for Konstanz physicists in studying the quantum vacuum

An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...

Im Focus: How gut bacteria can make us ill

HZI researchers decipher infection mechanisms of Yersinia and immune responses of the host

Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...

Im Focus: Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.

While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...

Im Focus: Studying fundamental particles in materials

Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales

Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Sustainable Water use in Agriculture in Eastern Europe and Central Asia

19.01.2017 | Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

 
Latest News

New technology for mass-production of complex molded composite components

23.01.2017 | Process Engineering

Quantum optical sensor for the first time tested in space – with a laser system from Berlin

23.01.2017 | Physics and Astronomy

The interactome of infected neural cells reveals new therapeutic targets for Zika

23.01.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>