加州Marina州立海滩周末发生大白鲨跃出水面事件,该画面被在场游客拍摄并在网络传播1。据加州州立公园官员确认,这一鲨鱼活动真实存在1。大白鲨可长达20英尺(约6米),重达4000磅(约1800千克),在此次事件中从水中跃起数英尺1。
官方表示,"鲨鱼是沿海生态系统的重要组成部分,人与鲨鱼的相互作用很少见"1。目前大白鲨被国际自然保护联盟列为易危物种1。该物种面临严峻的生存压力,其种群在20世纪期间下降超过90%1。威胁因素包括娱乐和商业捕鱼、混获、非法捕猎、贩运、栖息地退化和气候危机1。
A great white shark breached the water at Marina State Beach in California during the weekend, an encounter captured by beachgoers and subsequently shared online.1 California state park officials confirmed the shark activity and emphasized that sharks play a vital role in coastal ecosystems, noting that interactions between humans and sharks are rare occurrences.1
Great white sharks can grow up to 20 feet long and weigh as much as 4,000 pounds.1 The species faces significant conservation challenges, having experienced a population decline exceeding 90 percent during the twentieth century.1 Currently classified as vulnerable by the International Union for Conservation of Nature, great whites are threatened by recreational and commercial fishing, bycatch, illegal poaching, trafficking, habitat degradation, and climate change.1
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