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X @Nick Szabo
Nick Szabo· 2026-02-13 03:42
RT Isabella Anderson (@IsabellaAn67)The giant Chinese fishing ship swarms are brighter than all the cities in the southern half of South America combined!China operates more than 500,000 fishing vessels, and at least 50,000 overseas fishing fleets that wipe the oceans clean on their path!Collectively, they probably consume more petroleum fuel by volume and emit more CO2 than all the cars in Europe combined, let alone the global scale environmental and ecological mass destruction.Never saw @GretaThunberg, @G ...
Why sharks and rays keep our oceans alive | Louisa Graf | TEDxDeakin Uni Melbourne
TEDx Talks· 2025-12-22 17:17
Environmental Impact & Conservation - Over one-third (33%) of all shark and ray species are threatened with extinction worldwide, equating to over 400 species [3] - Declining shark and ray populations have been linked to the functional extinction of seagrass meadows in the Indian Ocean and threaten coral reefs in Australia [4][5] - Sharks and rays play a crucial role in regulating the ocean's ecosystem and maintaining its balance [15] Research & Biodiversity - There are over 50 species of sharks and rays in Port Philip Bay, Australia, many of which are meso predators [8] - Research focuses on tracking shark and ray movements using small trackers and underwater listening stations to understand their role in the marine ecosystem [11][12] - Muscle biopsies are used to analyze the diet of sharks and rays, providing insights into their ecological roles [13] Threats & Human Impact - Overfishing is the number one threat to sharks and rays globally [17] - Shark products are present in everyday items like pet food, supplements, and skincare [17][18] - Three billion people rely on marine and coastal resources for their livelihoods, highlighting the importance of ocean conservation [15] Ocean's Role - The ocean provides 50% of the air we breathe, emphasizing the critical role of marine ecosystems [15]