被遗忘捕食者的未来:加勒比锯鳐保护和恢复的国际法律框架评估

Q2 Social Sciences
Olga Koubrak
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引用次数: 2

摘要

锯鳐是世界上最濒危的海鱼。这些长得像鲨鱼的鳐曾经在全球热带和亚热带沿海水域很常见,现在它们的大部分地区都灭绝了。1996年,国际自然保护联盟(IUCN)首次将锯鳐列为濒危物种。今天,加勒比地区的这两种锯鳐都被列为极度濒危物种,或面临“野外灭绝的极高风险”。软骨鱼纲包括一千多种鲨鱼、鳐鱼、鳐鱼和嵌合体,只有2.4%的软骨鱼纲被归为这一类。即使所有导致死亡的外部因素都被消除,加勒比锯鳐也需要“几十年”到100多年的时间才能恢复。到21世纪初,锯鳐的危险地位得到了国家和国际法律的承认。2003年,它“赢得了第一个可以在海洋中度过一生的动物的荣誉”,被列入美国濒危物种法案(ESA)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A Future for a Forgotten Predator: An Assessment of International Legal Frameworks for Protection and Recovery of the Caribbean Sawfishes
Sawfishes are the world’s most endangered marine fish. These shark-looking rays were once common in tropical and subtropical coastal waters across the globe and are now extinct in large portions of their range. Sawfishes were first assessed as endangered by the International Union for Conservation Nature (IUCN) in 1996. Today, both species of sawfish present in the Caribbean are classified as critically endangered or facing “an extremely high risk of extinction in the wild.” Only 2.4 percent of chondrichthyans, a class that includes more than one thousand species of sharks, rays, skates, and chimaeras, have been placed in this category. Even if all external sources of mortality are eliminated, it will take anywhere from “several decades” to over 100 years for the Caribbean sawfishes to recover. By the beginning of the twenty-first century, sawfishes’ perilous status became recognized in national and international law. In 2003, it “won the dubious distinction of being the first animal that can spend its entire life in the ocean” to be listed under the US Endangered Species Act (ESA).
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来源期刊
CiteScore
0.90
自引率
0.00%
发文量
14
期刊介绍: Drawing upon the findings from island biogeography studies, Norman Myers estimates that we are losing between 50-200 species per day, a rate 120,000 times greater than the background rate during prehistoric times. Worse still, the rate is accelerating rapidly. By the year 2000, we may have lost over one million species, counting back from three centuries ago when this trend began. By the middle of the next century, as many as one half of all species may face extinction. Moreover, our rapid destruction of critical ecosystems, such as tropical coral reefs, wetlands, estuaries, and rainforests may seriously impair species" regeneration, a process that has taken several million years after mass extinctions in the past.
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