The climate can change where Seychelles stingrays choose to live

SANCTUARY OF STINGRAYS: The climate can change where Seychelles ’STINGRAYS choose to live.

Stingrays on the shallow sands of St Joseph Atoll. Courtesy: Rainer von Brandis, © Save Our Seas Foundation

Stingrays are a big problem, because of the big fishing. Scientists from the Save Our Seas Foundation D’Arros Research Center (SOSF-DRC) and the South African Institute for Aquatic Biodiversity are working to learn more about the survival of stingrays in the Seychelles. Their headquarters are on D’Arros Island and St Joseph Atoll. Here, the soft white sand leads to shades of turquoise and deep blue. Beneath the waves, this clean ecosystem is home to a wide variety of corals.

On a new paper published in a journal Limitations in marine science, scientists have underestimated the importance of this habitat for vulnerable stingrays. Sixty people from three stingray species living in St Joseph Atoll throughout the year were observed for one year on average. Environmental factors, such as sea and temperature, were taken into account.

St Joseph Atoll is the perfect place for such research. Two main habitats, the shallow shallow and the confined stream, are important feeding grounds for three species of species: the cowtail stingray, the mangrove whipray and the porcupine whipray. There were grass mats that were scattered on the clothesline and sometimes covered with water.

To track the movements of the stingrays here, the researchers used a technology called passive acoustic telemetry. They identified 20 stingrays from each species with voice transmitters. Forty underwater tourist attractions were spread along the grounds and seawalls. These servers carry unique sound waves that are output by each sender.

They found that stingrays were more interested in the protection of the shallows. However, environmental factors such as low tide or high or low water levels move these rays into deep water, where they are vulnerable to large predatory sharks. yes. Conditions are more stable here, however, so their desired location is likely to change as the climate and weather conditions change.

No changes were observed on D’Arros Island and St Joseph Atoll. After extensive coral bleaching performed in the Western Hemisphere, these sturdy necks are showing signs of healing. The Seychellois are celebrating sanctuaries for marine life and in March 2020, through the Seychelles Marine Spatial Plan initiative, their government has selected the waters surrounding D’Arros Island and St Joseph Atoll as zone 1 and zone 2 as marine protected areas.

SANCTUARY OF STINGRAYS: The climate can change where Seychelles ’STINGRAYS choose to live.

The pork belly. Courtesy of Rainer Von Brandis, © Save Our Seas Foundation

This protection underscores the importance of D’Arros and St Joseph’s for natural disasters and the ecosystem, as Chantel Elston, the paper’s lead author and SOSF project leader, saw first hand. .

“Stingrays are important for maintaining the health of the ocean, especially in tropical places like the Seychelles,” he said. “This research will help further elicit evidence that St Joseph Atoll provides a suitable habitat for endangered stingrays and that the newly released area in the ocean will receive conservation benefits.”

Research like this will help us prevent vulnerable groups such as stingrays with greater efficiency. As Helena Sims, SOSF Seychelles Ambassador explains, “Once you know how fragile species first live and how and when they move, it can be developed. navigation plans for their maintenance. ” And when it comes to navigation, the Seychellois are ahead of the game. This last group of blocked areas at sea is 30% of Seychelles ’waters that are currently blocked, 10 years ahead of the global target.

As Helena put it, “The people of the Seychelles are not arguably in a natural way. In the constitution of the Republic.” There is a very strong conservation policy here, with the government focused on creating ecological resources for future generations.

The beauty of the nation is at the heart of Save Our Seas Foundation’s Founder, Abdulmohsen Abdulmalik Al-Sheikh, who said, “I am always amazed at how many real wonders there are in Seychelles and what this research is all about. recently revealed about the nature of the lights in D. ”Arros is no different. Their hard lives are interesting and show the importance of sites like St Joseph’s in preserving the Seychelles’ natural heritage. ”


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More information:
Chantel Elston et al, Stingray Habitat use by heat and sea, Limitations in marine science (2022). DOI: 10.3389 / fmars.2021.754404

Courtesy of Save Our Seas Foundation

Directions: Sanctuary of the Flies: The climate can change where Seychelles stingrays choose to live (2022, April 12) Retrieved 12 April 2022 from https://phys.org/news/ 2022-04-sanctuary-shallows-climate-affect -seychelles.html

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