Satellites can help locate stranded whales more efficiently and in real time.
Scientists have begun to harness the power of high-resolution images of technology to detect and track whales stranded from space on the coast.
The team noted that the use of satellites will help to find stranded whales in remote locations, as well as potentially deteriorating ocean conditions.
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Satellites can help locate stranded whales more efficiently and in real time. Scientists have begun to harness the power of high resolution images of technology to detect and track whales stranded from space on the coast
In 2015, Chile witnessed one of the largest mass kalein whale deaths on the remote beaches of Patagonia – at least 343 died. Due to the remote location, however, the stranded whales were not discovered for weeks
In 2015, Chile witnessed one of the largest mass kalein whale deaths on the remote beaches of Patagonia – at least 343 died.
Due to the remote location, however, the stranded whales were not discovered for weeks.
Now experts from the British Antarctic Survey and four Chilean research institutes hope that satellites can see an event like this sooner.
They believe that a new technique for analyzing satellite images can revolutionize the way that stranded whales are detected in remote places.
The red triangles are whales found by satellites and the yellow triangles mark them spotted by a flight survey. The team noted that the use of satellites will help to find stranded whales in remote locations, as well as potentially deteriorating ocean conditions.
This method can spot stranded whales, but it can also be used to identify potentially deteriorating ocean conditions.
Dr. Carlos Olavarría from the Center for Advanced Studies in Arid Zones (CEAZA), La Serena, Chile, told BBC news, & # 39; Technology is constantly improving. & # 39;
& # 39; In this study we used images with a resolution of 50 cm, but the satellites can now see 30 cm. & # 39;
& # 39; In the future we also want to be able to analyze the photos automatically, instead of manually; and I am sure that as more spirits are applied to the problem, this will become possible. & # 39;
The stranding of 2015 was discovered during a survey flight over the location, where many sei whales live.
These whales can reach over 50 feet in length and weigh around 20 tons.
HOW DO WHALSE COMMUNICATE AND CAN THEY TALK TO PEOPLE FOR A DAY?
How do whales communicate?
Whales are known for using complex clicks and singing to communicate with each other – even when they are hundreds of miles apart.
Whales that are closely related or live together produce similar pulsed calls with vocal characteristics that differ from the group, known as a dialect.
It is believed that clicks are mainly used for navigation and identifying objects such as prey in the environment, but they are also used for social interactions.
Members of a pod have similar calls that are known as a dialect that consists of types of discrete, repetitive calls.
Newborns copy their mother's call.
Individuals are thought to learn their dialect through contact with their mother and other pod members.
It is believed that Norwegian and Icelandic herring-eating orcas have different vocalisations for activities such as hunting and traveling.
Can they talk to people?
Earlier, researchers thought that the simulation of human speech was limited to a few primates, birds, elephants, dolphins and seals.
The fact that the whale produces these sounds demonstrates that they can learn sounds by copying and helps us understand their life in the wild.
However, when Wikie & # 39; hello & # 39; says, this means absolutely nothing to her.
She attaches no importance to this sound and & # 39; talks & # 39; not against people.
The word is entirely from the normal sound repertoire of whales and was chosen as a nonsense sound.
If Wikie & # 39; hello & # 39; says, this means absolutely nothing to her. She attaches no importance to this sound and & # 39; talks & # 39; not against people
Although the researchers did not intend to test Wikie's communication skills, the scientist who led the study believes that one day the basics & # 39; conversations & # 39; could be possible with her.
Dr. Jose Abramson, from the University of Complutense de Madrid in Spain, said: & Yes, it is conceivable … if you have labels, descriptions of what things are.
& # 39; It has previously been done with a famous gray parrot and dolphins using American sign language phrases like & # 39; bring me this item & # 39; or & # 39; place this object above or below the other & # 39;. & # 39;
The experiment proves that there is a lot of complex communication between whales and dolphins.
The researchers, led by Preter Fretwell at the British Antarctic Survey, collected archive images from the pre-air satellite, which could reach a resolution of half a meter in black and white and a resolution of 2 meters in 8 color bands, Gizmodo reported.
After processing the images, they manually analyzed the images for whale shapes, sorted the shapes into classes based on how certain they were that they really were a whale, and analyzed the wavelengths of light that appeared in the images.
They also carried out an automated analysis to find these whale-like forms.
The team found a larger number of whales in the satellite images compared to those in the flight survey.
The discrepancy was based in part on the time that had elapsed between the different research methods because the whales could have shifted in the water.
According to the article published by the researchers in PLOS One, the aerial photos could have underestimated the number of whales.
Using the red and near-infrared wavelengths, the technology can determine the difference between whale and non-whale, because the color of sei-whales changes to a light-like sand color when they begin to decompose – making them difficult to recognize
And using the red and near-infrared wavelengths, the technology is able to determine the difference between whale and non-whale because the color of sei-whales changes to a slightly sandy color when they begin to decompose – causing them difficult to recognize.
And the researchers think that satellites will also help stranded whales.
Carlos Olavarría, executive director of the Center for Advanced Studies of Arid Zones in Chile and one of the authors of the study, told Gizmodo: & # 39; It is very unusual that so many whales die in one place. & # 39;
& # 39; It tells us that something is happening throughout the environment.
& # 39; We must be closer to the time when these animals die so that we can know what is happening throughout the environment. & # 39;
The stranding of 2015 was discovered during a survey flight over the location, where many sei whales live. These whales can reach over 50 feet in length and weigh around 20 tons
The new study is a first step in using satellites to track whale strandings, and although the team has found it promising, there are still kinks that need to be addressed.
Experts noted that manual scanning of the images is time-consuming and they hope to use the power of machine learning techniques to remove whale bodies from the images.
Moreover, this method is unlikely to save the lives of whales, especially since the satellites can only take images if they are directly above the area of interest and there is no cloud.
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