Satellite tagging of Indus river dolphins

 

Satellite tagging of Indus river dolphins:

In some parts of South America and Asia, a unique and beautiful freshwater creature has always been the focus of worldwide attention, it is not even a fish, but the glory of clean water. We all know it as 'Dolphin'. The dolphin is considered as one of the oldest living creatures on earth. According to some biologists, dolphins belong to the family of sharks and sea turtles. The dolphin is a common mammal found in the oceans, but it also adorns some of the world's major rivers, including the Indus river. Dolphins and porpoises are found in several large rivers of two continents. These waters include our river Indus.

 

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The waters in which river dolphins live indicate the health of the river and the freshness of its waters. That is, it is certain that no dolphin in the world can survive in any dirty water. If a dolphin population is growing in a freshwater reservoir, then the overall condition of this freshwater system also indicates the full potential for flourishing. But if the dolphin population is declining, it is considered a red flag and a wake-up call for the region's ecosystem as a whole. And this indicates that the water of such a river is becoming dangerous not only for dolphins but for the entire environment.

 

The World Wide Fund for Nature (WWF) is working with countries with "river dolphins" these days to avoid direct threats to different species of dolphins. So that policies and practices can be changed to strengthen bye-catching and infrastructure, protect their habitats, and strengthen scientific research. The WWF is engaged in very important and constructive work towards finding long-term practical solutions to the challenges facing river dolphins in different parts of the world.

 

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The Indus River dolphin (scientifically named " Platanista gangetica minor"), and locally known as "Bulhan" or "Blind Bulhan", is very different from dolphins around the world in many respects. It is called the " Blind Bulhan " because its eyes are so small that scientists believe that it is practically blind, and can only perceive the level and direction of light underwater. Indus River dolphins swim in the lower reaches of the Indus in Pakistan, especially in areas just above Lloyd Barrage Sukkur.

 

Another small dolphin (similar to the sister of the Indus dolphin) with similar beaks is also found in its isolated population in the Beas River in India, also known as "Suso''. The uniqueness of this "Suso '' dolphin is that it relies on unusually muddy river waters, general communication, and eco-location for hunting.

 

Since the early 1930s, the construction of numerous dams and barrages has severely affected the population of our 'Indus Dolphins' by dividing them into small groups, their habitats and colonies, and these constructions in their migration. By interfering, the Indus River dolphins cause an early decline. These innocent dolphins are sometimes caught in fishermen's nets as well as in irrigation trails and often face the dangers of pollution.

 

The WWF has been working for a significant period to protect a viable Indus dolphin population and its habitats (river colonies and neighborhoods). When an individual dolphin is trapped in irrigation canals, local WWF volunteers also take part in the rescue mission of the trapped dolphin. A 'River Dolphin Hotline' has also been set up in Pakistan, on which locals call when they see a dolphin in trouble and save his life.

 

As a continuation of these efforts, the World Wide Fund for Nature (WWF) and its research partners are now, for the first time, tracking river dolphins in the Amazon using satellite technology. These dolphins are being fitted with a small device that will provide them with new insights into their movements, attitudes, and the dangers they face. Which can be monitored from any corner of the world and enables practical action to be taken locally for any possible solution to any problem.

 

To protect dolphins around the world from natural and unnatural hazards, scientists in Brazil, Colombia, and Bolivia successfully tagged 11 dolphins, including 'Amazon' and 'Bolivian River dolphins' by attaching small transmitters to their bodies. ۔ These tags will help in better planning for the protection of these dolphins and their habitats through the information collected through satellite.

 

Despite the famous and unique status of river dolphins, little is known about their population and habitat. The data obtained with the help of this satellite tagging will help us to better study, among other important information about them, what the dolphins eat and from a location in terms of changing their habitat. How far they can travel to relocate.

Marcelo Oliveira, a WWF security expert who led the campaign in Brazil, said: It will help to better understand, which will help us to change our approach to protect them and the entire ecosystem. Tracing these dolphins is the beginning of a new era for our work, as we will eventually be able to create a map that will allow us to know when these dolphins are out of our sight and Where do they go?

 

River dolphins are captured and tagged safely on time, following strict protocols, which are completely tailored to the animal's welfare and well-being priorities. ۔ During this process, special care is taken to ensure that no dolphins are injured. Recently, the Indus Dolphin near Sukkur Barrage was also subjected to satellite tagging under the same principles and protocols and as a result, no dolphin showed any bad effect or impression after being released after this temporary capture.

 

WWF professionals safely tag a river dolphin in the following steps: And in the same way, about a month ago, three Indus Dolphins were initially satellite-tagged for the first time.

 

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Step 1: Local fishermen set nets in areas where they have seen dolphin’s movement. The nets specially designed for this are very large and are designed to cover a large part of the width of the river.

 

Step 2: Fishermen enter in the water with smaller nets, and gently drag the dolphins into the nets one by one.


Step 3: They bring the dolphins to the riverbank, where the scientists have set up a temporary camp.

Step 4: Aquatic biologists and biologists measure different types of dolphin bodies and take samples.

 

Step 5: Scientists securely attach this 'chip' -like a tag to the dolphin's body with 'dorsal art' and assign a specific code to the dolphin, which becomes its identification number. Applying this satellite tag is as simple as piercing a nail. As the dolphin's wings grow, the tag falls off in about six months, meaning the dolphin needs to change the tag again after six months. This tag, like a tracker in a car, not only keeps track of the dolphin's range of motion, but also the changes that take place in its body. It Keeps the control room informed of temperature and possible illnesses, its dangers, and its changing physical conditions.

 

Step 6: The river dolphin is released back to its home (water) as soon as possible after this tagging.

 

Step 7: This satellite tag sends information about the dolphin's movement and location to the control room at least once a day. One tag is capable of transmitting information for up to six months. Some tags last longer than that.

 

"It's time to dump her and move on," said Jordi Sorkin, director of the Amazon Region Coordination Unit's WWF. These dolphin populations are still strong, and their habitats are in relatively good condition. If we address the risks now, we can ensure a future for all. "

 

Concerns over the genocide of the Indus Valley dolphin (blind Bulhan), especially in the last two or three decades, which has become a major problem in nature, have been raised by the WWF. This revolutionary move has, at least, turned into the satisfaction that this rare breed of Indus dolphin, now found here, can be saved from unnatural death and extinction. Now, those who love the region and the Indus River are quite convinced that with the help of the World Wide Fund for Nature, we can save this "Indus Dolphin" from extinction.

 

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