Ecotourism , if properly regulated, can 'be very useful to nature. It 's the result of a study published in Ecological Applications , the journal of the companies' American label. Through the pictures taken by tourists, an Australian researcher and 'able to "count" the people of the atoll a whale shark in Australia, and to monitor their health.
The Australian scientist began in '95 to study the huge sharks (known as "gentle giants") and found that the white spots along their sides and back are like "fingerprints" that allow us to distinguish one from 'else. With the help of an astronomer at NASA has adapted a program uses Hubble telescope to be able to recognize the different specimens. Submitting to the program more 'than five thousand photographs taken by tourists at Ningaloo, a marine park in Western Australia, the researcher and' failed to recognize many "old friends". At least two thirds of the sharks at Ningaloo returns season after season - explains the researcher - and this suggests that the population is increasing.
According to the researcher, the study confirms that the strict rules, designed to show ecotourists whale sharks, they have worked.
Source: ESA News high-resolution photographs can be downloaded here
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