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SAO PAULO (AP) — More than 100 dolphins have died in the Brazilian Amazon rainforest in the past week as the region grapples with a severe drought, and many more could die soon if water temperatures remain high, experts say. Experts believe high water temperatures are the most likely cause of the deaths in the lakes in the region. Temperatures since last week have exceeded 39 degrees Celsius (102 degrees Fahrenheit) in the Tefe Lake region. There had been some 1,400 river dolphins in Tefe Lake, said Miriam Marmontel, a researcher from the Mamiraua Institute. Fleischmann said water temperatures rose from 32 C (89 F) on Friday to almost 38 C (100 F) on Sunday.

Persons: Chico Mendes, Miriam Marmontel, ”, Wilson Lima, Marreira, Ayan Fleischmann, Fleischmann Organizations: SAO PAULO, Mamiraua Institute, Brazil’s Ministry of Science, Technology, Innovation, Chico, Chico Mendes Institute for Biodiversity Conservation, Workers, Amazonas Gov, Mamirauá Institute Locations: Tefe, Tefe Lake, Amazonas

☆ Mass death of Amazon river dolphins linked to severe drought, heat
▼ + stars: | 2023-10-02 | by ( Bruno Kelly | ) www.reuters.com time to read: +3 min

REUTERS/Bruno Kelly/File photo Acquire Licensing RightsMANAUS, Oct 2 (Reuters) - The carcasses of 120 river dolphins have been found floating on a tributary of the Amazon River since last week in circumstances that experts suspect were caused by severe drought and heat. Low river levels during a severe drought have heated water in stretches to temperatures that are intolerable for the dolphins, researchers believe. The Amazon river dolphins, many of a striking pink color, are unique freshwater species found only in the rivers of South America and are one of a handful of freshwater dolphin species left in the world. The scientists do not know with total certainty that drought and heat are to blame for the spike in dolphin mortality. Global warming's role in the current Amazon drought is unclear, with other factors such as El Nino at play.

Persons: Bruno Kelly, El Nino, Miriam Marmontel, Marmontel, Brazil's Chico Mendes, Anthony Boadle, Brad Haynes, Jonathan Oatis Organizations: Mamiraua Institute, Sustainable Development, REUTERS, Rights, Environmental, El, International Union for Conservation, Brazil's Chico Mendes Institute for Biodiversity Conservation, Thomson Locations: Tefe, Amazonas, Brazil, Rights MANAUS, South America, Tefé's, Lake Tefé, Tefé

CNN —More than a hundred dolphins have been found dead in the Brazilian Amazon amid an historic drought and record-high water temperatures that in places have exceeded 102 degrees Fahrenheit. The Amazon River, the world’s largest waterway, is currently in the dry season, and several specimens of river fauna are also suffering from record-high temperatures. A severe drought is threatening the Amazon river. Below average levels of water have been reported in 59 municipalities in Amazonas State, impeding both transport and fishing activities on the river. Authorities expect even more acute droughts over the next couple of weeks, which could result in further deaths of dolphins, CNN Brasil reported.

Persons: It’s, Edmar Barros, ” André Coelho Organizations: CNN, Mamirauá Institute, Brazilian Ministry of Science, CNN Brasil, AP, Mamiraua Institute Locations: Lake Tefé, Amazonas State

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