Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Site of human-dolphin partnership becomes protected area

26.06.2006
Irrawaddy dolphins benefit from protection by Myanmar government

The government of Myanmar has established a protected area for, of all things, a partnership between fishermen and a small, gray beakless dolphin with a knack for herding fish into nets, according to the Wildlife Conservation Society (WCS). Specifically, some 70 kilometers of the Ayeyarwady River have been protected to safeguard the cooperative fishery. It also supports one third of the river's population of Irrawaddy dolphins, a species that is threatened throughout much of its coastal and freshwater range.

"This is a big step forward toward saving this cetacean in the Ayeyarwady River and the fishery that benefits both humans and dolphins," said WCS researcher Brian D. Smith, who has conducted research on the species in the region for several years. "Balancing the protection of a critically endangered wildlife population with local livelihoods and preservation of a unique cultural tradition is a win-win situation for all."

The fascinating partnership involves fishermen summoning the dolphins to voluntarily herd schools of fish toward the boats and awaiting nets. With the aid of the river-dwelling dolphins, the fishermen can increase the size of their catches by threefold, and the dolphins appear to benefit by more easily preying on the cornered fish in both nets and on the muddy banks of the river.

The Irrawaddy dolphin grows to some 2 to 2.5 meters in length (6.5 to 8 feet) and frequents the coasts, estuaries, and freshwater lagoons of Southeast Asia. It is threatened throughout its range by incidental catches and in several areas by habitat degradation.

The dolphin population in the Ayeyarwady River is one of the most threatened, specifically by electrocution from illegal electric fishing and entanglement in gill nets, and from mercury poisoning and habitat loss from gold mining operations in the river. Recent surveys of the river conducted by the Department of Fisheries and WCS found that the species range had declined by some 60 percent, and that only 59 to 72 individuals remained in a region some 1000 kilometers from the sea. In response to these findings, the World Conservation Union (IUCN) designated the population as "critically endangered."

The new protected area will boost awareness about the Irrawaddy dolphin and its unique role in the river's livelihoods, as well as enforce the prohibition of electric fishing, gold mining, and other threats, and initiate a systematic monitoring program for the species. Another positive development is a recent ban on gold mining in the Ayeyarwady and a recent survey conducted by WCS and the Myanmar Department of Fisheries found that the ban had been 100% effective on eliminating this threat from the river.

"If the protected area proves successful at conserving dolphins and enhancing the livelihoods of local fishermen, it could be used as a model for extending similar protection to other river segments," added U Mya Than Tun, Senior Scientist with the Myanmar Department of Fisheries.

John Delaney | EurekAlert!
Further information:
http://www.wcs.org

More articles from Ecology, The Environment and Conservation:

nachricht Dispersal of Fish Eggs by Water Birds – Just a Myth?
19.02.2018 | Universität Basel

nachricht Removing fossil fuel subsidies will not reduce CO2 emissions as much as hoped
08.02.2018 | International Institute for Applied Systems Analysis (IIASA)

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: Why we need erasable MRI scans

New technology could allow an MRI contrast agent to 'blink off,' helping doctors diagnose disease

Magnetic resonance imaging, or MRI, is a widely used medical tool for taking pictures of the insides of our body. One way to make MRI scans easier to read is...

Im Focus: BAM@Hannover Messe: innovative 3D printing method for space flight

At the Hannover Messe 2018, the Bundesanstalt für Materialforschung und-prüfung (BAM) will show how, in the future, astronauts could produce their own tools or spare parts in zero gravity using 3D printing. This will reduce, weight and transport costs for space missions. Visitors can experience the innovative additive manufacturing process live at the fair.

Powder-based additive manufacturing in zero gravity is the name of the project in which a component is produced by applying metallic powder layers and then...

Im Focus: Molecules Brilliantly Illuminated

Physicists at the Laboratory for Attosecond Physics, which is jointly run by Ludwig-Maximilians-Universität and the Max Planck Institute of Quantum Optics, have developed a high-power laser system that generates ultrashort pulses of light covering a large share of the mid-infrared spectrum. The researchers envisage a wide range of applications for the technology – in the early diagnosis of cancer, for instance.

Molecules are the building blocks of life. Like all other organisms, we are made of them. They control our biorhythm, and they can also reflect our state of...

Im Focus: Spider silk key to new bone-fixing composite

University of Connecticut researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.

Repairing major load-bearing bones such as those in the leg can be a long and uncomfortable process.

Im Focus: Writing and deleting magnets with lasers

Study published in the journal ACS Applied Materials & Interfaces is the outcome of an international effort that included teams from Dresden and Berlin in Germany, and the US.

Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

IWOLIA: A conference bringing together German Industrie 4.0 and French Industrie du Futur

09.04.2018 | Event News

 
Latest News

World's smallest optical implantable biodevice

26.04.2018 | Power and Electrical Engineering

Molecular evolution: How the building blocks of life may form in space

26.04.2018 | Life Sciences

First Li-Fi-product with technology from Fraunhofer HHI launched in Japan

26.04.2018 | Power and Electrical Engineering

VideoLinks
Science & Research
Overview of more VideoLinks >>>