珊瑚碎石稳定结构上分枝状 Acropora 形态的存活率

IF 2.8 3区 环境科学与生态学 Q2 ECOLOGY
Rowan Watt‐Pringle, David J. Smith, Rohani Ambo‐Rappe, Muslimin Kaimuddin, Jamaluddin Jompa
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引用次数: 0

摘要

在实验性恢复环境中,比较了紧凑灌木型和扩张型分支 Acropora 的存活率。珊瑚碎片来源于机会珊瑚(CoPs),或从漂浮在中层水上的绳索育苗场饲养的机会珊瑚中重新破碎。在印度尼西亚中部瓦卡托比海洋国家公园退化、未固化的死珊瑚碎石斜坡上,珊瑚碎片以单一物种和混合物种的形式聚集在模块化底质稳定结构(珊瑚礁星)上。在水深 14 米的五个实验修复区块中,共有 1440 块 Acropora 碎片被移植到 96 个珊瑚礁星上。记录了附着后 40-44 个月的碎片存活率。存活率与碎片形态(p < 0.001)和聚集类型(p < 0.01)有显著关系。作为 CoPs 或从苗圃中获取的碎片与存活率没有显著关系。形态、外植体聚集和来源之间的交互作用与碎片存活率没有明显关系。对于直接外植 CoP 和苗圃培育的珊瑚而言,丛生 Acropora 的存活率分别是扩张物种的 3.44 倍和 5.25 倍。研究结果表明,利用单一物种聚集与混合物种聚集穿插的方式,将形态复杂的灌木状分枝珊瑚恢复到以前以该属为主的中深层珊瑚礁斜坡,具有潜在的功效。该研究还支持利用中层水育苗创造一个封闭或半封闭的育苗循环,以扩大恢复规模,并建议引入 "生物量生产系统 "一词,以区别于其他珊瑚育苗方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Survival rates of branching Acropora morphologies on coral rubble stabilization structures
Compact bushy and expansive branching Acropora survival rates were compared in an experimental restoration setting. Coral fragments were sourced as corals of opportunity (CoPs) or refragmented from CoPs reared on a floating mid‐water rope nursery. Fragments were attached in single‐species and mixed‐species aggregations to modular substrate stabilization structures (reef stars) on degraded, unconsolidated dead coral rubble slopes in Wakatobi Marine National Park, central Indonesia. In total, 1440 Acropora fragments were outplanted to 96 reef stars across five experimental restoration blocks at 14 m depth. Fragment survival was recorded 40–44 months post‐attachment. Survival had a significant relationship with fragment morphology (p < 0.001) and aggregation type (p < 0.01). Sourcing fragments as CoPs or from the nursery did not have a significant relationship with survival. No significant relationships were found with fragment survival for any interactions between morphology, outplanted aggregation, and source. Survival rates for bushy Acropora were 3.44 times and 5.25 times higher than for expansive species for direct CoP outplants and nursery‐reared corals, respectively. The results demonstrate the potential efficacy of returning complex bushy branching Acropora morphologies to mid‐depth reef slopes previously dominated by the genus, using single‐species aggregations interspersed with mixed‐species aggregations. The study also supports using mid‐water nurseries to create a closed or semi‐closed nursery cycle to scale up restoration, and proposes introducing the term “biomass production system” to distinguish this as a process distinct from other coral nursery approaches.
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来源期刊
Restoration Ecology
Restoration Ecology 环境科学-生态学
CiteScore
6.50
自引率
15.60%
发文量
226
审稿时长
12-24 weeks
期刊介绍: Restoration Ecology fosters the exchange of ideas among the many disciplines involved with ecological restoration. Addressing global concerns and communicating them to the international research community and restoration practitioners, the journal is at the forefront of a vital new direction in science, ecology, and policy. Original papers describe experimental, observational, and theoretical studies on terrestrial, marine, and freshwater systems, and are considered without taxonomic bias. Contributions span the natural sciences, including ecological and biological aspects, as well as the restoration of soil, air and water when set in an ecological context; and the social sciences, including cultural, philosophical, political, educational, economic and historical aspects. Edited by a distinguished panel, the journal continues to be a major conduit for researchers to publish their findings in the fight to not only halt ecological damage, but also to ultimately reverse it.
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