17 min
Conservation Efforts for Rio's Dolphins: A Deep Dive How To Protect The Ocean
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- Nature
Andrew Lewin discusses a conservation project in Rio de Janeiro aimed at saving the Rio's dolphin from extinction. Highlighting the threats of chemical and oil pollution, dredging, noise, overfishing, and bycatch in three different bays, including Guanabara Bay, Sepetiba Bay, and Ilha Grande Bay, the episode explores the efforts to protect these dolphins in Brazilian waters.
Link to article: https://news.mongabay.com/2024/04/education-research-bring-rios-dolphins-back-from-the-brink-of-extinction/
Follow a career in conservation: https://www.conservation-careers.com/online-training/ Use the code SUFB to get 33% off courses and the careers program.
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Conservation efforts are crucial to protect the Rio's dolphins, also known as Guyana's dolphins, from extinction in three different bays off the coast of Rio de Janeiro. These dolphins are residential, meaning they do not leave the bays despite facing various threats such as chemical pollution, oil pollution, dredging, noise pollution, and overfishing. The health of the ocean ecosystem within these bays is vital for the survival of these dolphins.
The Guyana's Dolphin Institute, led by biologist Leonardo Flack, has been studying the dolphins in Septiba Bay since the 1990s to understand the challenges they face and find solutions to protect them. The dolphins in these bays are reproducing, but the survivability of their calves is low, leading to high mortality rates. The dolphins are also facing issues such as infectious diseases due to pollution and other factors.
Conservation efforts include monitoring the dolphin populations, studying their tissues for contamination levels, and implementing measures to reduce threats like noise pollution, chemical pollution, and overfishing. Marine protected areas have been established in some bays to restrict harmful activities and protect the dolphins. Additionally, efforts are being made to engage with the fishing community and promote ecotourism as a sustainable alternative to fishing.
The challenges faced in conserving these dolphins highlight the need for marine spatial planning, collaboration with various stakeholders, and long-term monitoring and research efforts. By addressing the threats and implementing conservation measures, there is hope to bring the Rio's dolphins back from the brink of extinction and ensure their role as apex predators and iconic species in the region.
The dolphins in Rio de Janeiro, specifically the Guyana's dolphins or Rio's dolphins, are facing a multitude of threats that are putting their survival at risk. These threats include chemical pollution, sewage contamination, noise pollution from ships, overfishing, and habitat degradation.
Chemical Pollution and Sewage Contamination: The bays where these dolphins reside, such as Guanabara Bay, are heavily impacted by chemical pollution and sewage contamination. Up to 80% of sewage from the region is untreated and pumped directly into the bay, contaminating the water with pathogens and pharmaceuticals. This pollution has led to a compromised immune system in the dolphins, making them more susceptible to infectious diseases.
Noise Pollution from Ships: The presence of a large number of ships in the bays results in significant noise pollution. The noise interferes with the dolphins' communication, which is crucial for their hunting, communication within the pod, and protection of calves. The disruption in communication due to noise pollution can lead to the exclusion of certain pod members, including calves, which can have detrimental effects on the population.
Overfishing: The expansion
Andrew Lewin discusses a conservation project in Rio de Janeiro aimed at saving the Rio's dolphin from extinction. Highlighting the threats of chemical and oil pollution, dredging, noise, overfishing, and bycatch in three different bays, including Guanabara Bay, Sepetiba Bay, and Ilha Grande Bay, the episode explores the efforts to protect these dolphins in Brazilian waters.
Link to article: https://news.mongabay.com/2024/04/education-research-bring-rios-dolphins-back-from-the-brink-of-extinction/
Follow a career in conservation: https://www.conservation-careers.com/online-training/ Use the code SUFB to get 33% off courses and the careers program.
Sign up for our Newsletter: http://www.speakupforblue.com/newsletter
Facebook Group: https://bit.ly/3NmYvsI Connect with Speak Up For Blue:
Website: https://bit.ly/3fOF3Wf
Instagram: https://bit.ly/3rIaJSG
TikTok: https://www.tiktok.com/@speakupforblue
Twitter: https://bit.ly/3rHZxpc
YouTube: www.speakupforblue.com/youtube
Conservation efforts are crucial to protect the Rio's dolphins, also known as Guyana's dolphins, from extinction in three different bays off the coast of Rio de Janeiro. These dolphins are residential, meaning they do not leave the bays despite facing various threats such as chemical pollution, oil pollution, dredging, noise pollution, and overfishing. The health of the ocean ecosystem within these bays is vital for the survival of these dolphins.
The Guyana's Dolphin Institute, led by biologist Leonardo Flack, has been studying the dolphins in Septiba Bay since the 1990s to understand the challenges they face and find solutions to protect them. The dolphins in these bays are reproducing, but the survivability of their calves is low, leading to high mortality rates. The dolphins are also facing issues such as infectious diseases due to pollution and other factors.
Conservation efforts include monitoring the dolphin populations, studying their tissues for contamination levels, and implementing measures to reduce threats like noise pollution, chemical pollution, and overfishing. Marine protected areas have been established in some bays to restrict harmful activities and protect the dolphins. Additionally, efforts are being made to engage with the fishing community and promote ecotourism as a sustainable alternative to fishing.
The challenges faced in conserving these dolphins highlight the need for marine spatial planning, collaboration with various stakeholders, and long-term monitoring and research efforts. By addressing the threats and implementing conservation measures, there is hope to bring the Rio's dolphins back from the brink of extinction and ensure their role as apex predators and iconic species in the region.
The dolphins in Rio de Janeiro, specifically the Guyana's dolphins or Rio's dolphins, are facing a multitude of threats that are putting their survival at risk. These threats include chemical pollution, sewage contamination, noise pollution from ships, overfishing, and habitat degradation.
Chemical Pollution and Sewage Contamination: The bays where these dolphins reside, such as Guanabara Bay, are heavily impacted by chemical pollution and sewage contamination. Up to 80% of sewage from the region is untreated and pumped directly into the bay, contaminating the water with pathogens and pharmaceuticals. This pollution has led to a compromised immune system in the dolphins, making them more susceptible to infectious diseases.
Noise Pollution from Ships: The presence of a large number of ships in the bays results in significant noise pollution. The noise interferes with the dolphins' communication, which is crucial for their hunting, communication within the pod, and protection of calves. The disruption in communication due to noise pollution can lead to the exclusion of certain pod members, including calves, which can have detrimental effects on the population.
Overfishing: The expansion
17 min