How many metazoan species live in the world's largest mineral exploration region?
How many metazoan species live in the world's largest mineral exploration region?
复制标题
世界上最大的矿产勘探区生活着多少种后生动物？
DOI：
10.1016/j.cub.2023.04.052
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Rabone M
中科院分区：
文献类型：
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作者：
Rabone M
全球对钴和镍等金属的需求激增，使人们对拥有矿产资源的深海生境产生了前所未有的兴趣。最大的活动区是位于中太平洋和东太平洋的克拉里昂-克利珀顿区，面积为600万平方公里，由国际海底管理局管理。对该区域生物多样性的基线了解对于有效管理潜在深海采矿活动对环境的影响至关重要，但直到最近，这方面的知识几乎完全缺乏。在过去十年中，该区域的分类学产出和数据的快速增长，使我们能够对克拉里昂-克利珀顿区底栖后生动物的生物多样性进行第一次全面的综合，包括所有动物群的大小级别。在这里，我们提出了CCZ清单，底栖后生动物的生物多样性清单，对未来的环境影响评估至关重要。在CCZ中发现的物种中，估计有92%是科学上的新物种（在总共5，578个记录中有436个命名物种）。由于数据中的同义词，这可能是一个过高的估计，但最近的分类学研究分析表明，该地区88%的物种样本是未描述的。物种丰富度估计值将CCZ后生动物底栖生物多样性总量定为：Chao 1为6，233种（+/−82 SE），Chao 2为7，620种（+/−132 SE），这很可能代表了该区域多样性的下限。虽然估计数的不确定性很高，但随着可比数据集的积累，区域综合越来越有可能。这对于了解生态过程和生物多样性丧失的风险至关重要。
The global surge in demand for metals such as cobalt and nickel has created unprecedented interest in deep-sea habitats with mineral resources. The largest area of activity is a 6 million km2region known as the Clarion-Clipperton Zone (CCZ) in the central and eastern Pacific, regulated by the International Seabed Authority (ISA). Baseline biodiversity knowledge of the region is crucial to effective management of environmental impact from potential deep-sea mining activities, but until recently this has been almost completely lacking. The rapid growth in taxonomic outputs and data availability for the region over the last decade has allowed us to conduct the first comprehensive synthesis of CCZ benthic metazoan biodiversity for all faunal size classes. Here we present the CCZ Checklist, a biodiversity inventory of benthic metazoa vital to future assessments of environmental impacts. An estimated 92% of species identified from the CCZ are new to science (436 named species from a total of 5,578 recorded). This is likely to be an overestimate owing to synonyms in the data but is supported by analysis of recent taxonomic studies suggesting that 88% of species sampled in the region are undescribed. Species richness estimators place total CCZ metazoan benthic diversity at 6,233 (+/−82 SE) species for Chao1, and 7,620 (+/−132 SE) species for Chao2, most likely representing lower bounds of diversity in the region. Although uncertainty in estimates is high, regional syntheses become increasingly possible as comparable datasets accumulate. These will be vital to understanding ecological processes and risks of biodiversity loss.