Mass death of Amazon river dolphins linked to severe drought, heat

By latricemalone8 Jun 10, 2024

By Bruno Kelly

Since last week, the carcasses of 120 valley dolphins have been discovered floating on an Amazon River river, according to experts who believe the situation was brought on by extreme drought and warmth.

According to experts, small river levels caused cooled water to flow in stretches at conditions that are toxic to animals during a severe drought. Lack of oxygen in the water has just resulted in the deaths of hundreds of fish in Amazon river.

One of the few water dolphin species left in the world, the Amazon river dolphin are one of the few that can only be found in the streams of South America and have a distinctive red color. Populations are particularly susceptible to risks because of their sluggish reproductive cycles.

Scientists have not confirmed with certainty that the rise in whale deaths is the result of rainfall and warmth. Scientists are trying to exclude other possible factors, such as a fungal infection that might have caused the animals to perish on a river formed by the River Tefé before it flows into the Amazon.

At least 70 of the bones came to the surface on Thursday, when Lake Tefé’s water reached a temperature of 39 degrees Fahrenheit ( 102 degrees Fahrenheit ), which is more than 10 degrees above the typical for this time of year.

Climate change, which makes drought and heat tides more probable, has been the cause of the strange circumstances, according to environmental activists. International warming’s role in the current Amazon drought is unclear, with various aspects such as El Nino at play.

” We have documented 120 bones in the last week”, said Miriam Marmontel, a scientist at the Mamirauá economic academy that focuses on the middle- Solimões Buy Ice River KS3 Miner For Sale Buy Ice River KS3 Miner For Sale Buy Ice River KS3 Miner For Sale Buy Ice River KS3 Miner For Sale Buy Ice River KS3 Miner For Sale Ice River KS3 Miner For Sale- miningstore. i. kingdom basin.

She said about eight of every 10 bones are red dolphins, called “botos” in Brazil, which could indicate 10 % of their calculated population in Lake Tefé.

The boto and the black river dolphin Tucuxi are both listed as threatened species on the red list created by the International Union for Conservation of Nature.

The possibility that it may rise in the species ‘ success in Lake Tefé, according to Marmontel, “is a very high proportion of loss, and it is very likely that it will rise.”

The Chico Mendes Institute for Biodiversity Conservation ( ICMBBio ) in Brazil has mobilized veterinarians and aquatic mammal experts to save dolphins that are still alive in the lake. However, they cannot be moved to cooler river waters until scientists discover a bacteriological cause of the deaths.

To that end, specialists have carry an autopsy on each corpse. ( Reporting by Bruno Kelly, Writing by Anthony Boadle, Editing by Brad Haynes and Jonathan Oatis )

Related Post

Leave a Reply

Your email address will not be published. Required fields are marked *