Biodiversity, biogeography, and connectivity of polychaetes in the world's largest marine minerals exploration frontier
Biodiversity, biogeography, and connectivity of polychaetes in the world's largest marine minerals exploration frontier
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世界最大海洋矿物勘探前沿多毛类生物多样性、生物地理学和连通性
DOI：
10.1111/ddi.13690
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发表时间：
2023
影响因子：
4.6
通讯作者：
Stewart E
中科院分区：
文献类型：
--
作者：
Stewart E
目的太平洋克拉里昂-克利珀顿深海区是一个具有重要商业意义的区域，因为人们对在海底开采高品位多金属结核以获取电池金属的兴趣日益浓厚。需要对动物多样性、组成和种群连通性的空间格局进行研究，以更好地了解潜在资源开采的生态影响。在这里，DNA分类方法被用来调查区域规模的模式分类和系统发育的α和β多样性，遗传连接，占主导地位的大型底栖动物群（环节动物）分布在600万平方公里的深海海底区域。（3 932 - 5 055米深），赤道太平洋。MethodsWe使用了新的和公布的条形码数据的组合，研究1866多毛类标本使用分子物种划界。系统发育和分类学的α和β多样性指标被用来分析生物多样性的空间格局。连接性分析的基础上单倍型分布的一个子集的研究taxa.ResultsDNA分类确定291-314多毛类物种从COI和16 S数据集分别。站点之间的分类和系统发育的β多样性相对较高，主要是由谱系营业额解释。超过一半的成对比较比预期的分类多样性的基础上，更遗传学上的不同。在丰富的，广泛分布的类群的连接性分析表明，没有遗传结构驱动的地理location.Main ConclusionsSpecies多样性在深海太平洋多毛类相对于其他深海区域。结果表明，环境过滤，环境选择对某些物种，可能会发挥重要作用，在调节空间格局的生物多样性在CCZ。分布广泛的物种的核心组具有不同的单倍型，但在很宽的距离上连接良好。我们的数据表明，在未来的政策决策中应考虑CCZ的高度环境和动物群异质性。
AimThe abyssal Clarion‐Clipperton Zone (CCZ), Pacific Ocean, is an area of commercial importance owing to the growing interest in mining high‐grade polymetallic nodules at the seafloor for battery metals. Research into the spatial patterns of faunal diversity, composition, and population connectivity is needed to better understand the ecological impacts of potential resource extraction. Here, a DNA taxonomy approach is used to investigate regional‐scale patterns of taxonomic and phylogenetic alpha and beta diversity, and genetic connectivity, of the dominant macrofaunal group (annelids) across a 6 million km2region of the abyssal seafloor.LocationThe abyssal seafloor (3932–5055 m depth) of the Clarion‐Clipperton Zone, equatorial Pacific Ocean.MethodsWe used a combination of new and published barcode data to study 1866 polychaete specimens using molecular species delimitation. Both phylogenetic and taxonomic alpha and beta diversity metrics were used to analyse spatial patterns of biodiversity. Connectivity analyses were based on haplotype distributions for a subset of the studied taxa.ResultsDNA taxonomy identified 291–314 polychaete species from the COI and 16S datasets respectively. Taxonomic and phylogenetic beta diversity between sites were relatively high and mostly explained by lineage turnover. Over half of pairwise comparisons were more phylogenetically distinct than expected based on their taxonomic diversity. Connectivity analyses in abundant, broadly distributed taxa suggest an absence of genetic structuring driven by geographical location.Main ConclusionsSpecies diversity in abyssal Pacific polychaetes is high relative to other deep‐sea regions. Results suggest that environmental filtering, where the environment selects against certain species, may play a significant role in regulating spatial patterns of biodiversity in the CCZ. A core group of widespread species have diverse haplotypes but are well connected over broad distances. Our data suggest that the high environmental and faunal heterogeneity of the CCZ should be considered in future policy decisions.
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影响因子：
16.8
作者：
Kuhner MK
通讯作者：
Kuhner MK
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影响因子：
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作者：
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影响因子：
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作者：
M. Miljutina;D. Miljutin;R. Mahatma;J. Galéron
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DOI：
10.1016/j.dsr.2021.103498
发表时间：
2021
影响因子：
1.2
作者：
J. V. D. Grient;A. Rogers
通讯作者：
A. Rogers
影响因子：
3.8
作者：
Daniel O. B. Jones;Jennifer M. Durden;K. Murphy;K. Gjerde;A. Gebicka;A. Colaço;T. Morato;D. Cuvelier;D. Billett
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D. Billett