Recruitment of benthic organisms onto a planned artificial reef: shifts in community structure one decade post-deployment.
Recruitment of benthic organisms onto a planned artificial reef: shifts in community structure one decade post-deployment.
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计划中的人工鱼礁招募底栖生物：部署十年后群落结构的变化。
DOI：
10.1016/j.marenvres.2004.03.122
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发表时间：
2005
影响因子：
3.3
通讯作者：
Y. Benayahu
中科院分区：
文献类型：
--
作者：
S. Perkol‐Finkel;Y. Benayahu
大多数人工鱼礁（AR）研究都考察了底栖群落的早期定植阶段，而只有少数研究监测了人工鱼礁群落在初始演替阶段之后的发展，并评估了这种发展所需的时间尺度。此外，尽管 AR 研究不断涌现，但人工鱼礁和天然鱼礁 (NR) 之间的比较研究却很少。我们在此介绍了以色列埃拉特（红海）淹没的一个专门规划的 AR 的初始（1-2 年）和进展（10 年）阶段的海底群落发展的监测结果，并将其与邻近的 NR 进行比较。在初始阶段对大型无脊椎动物进行了目视调查，并在进展阶段使用带样线对珊瑚群落进行了表征。结果表明，在监测期间，AR 群落的物种组成发生了明显的变化：从在部署后两年的初始发育阶段以软珊瑚为主的群落（主要由 Dendronephthya hemrichi 组成），到第 10 年以海绵 Crella cyatophora 为主的群落。在 AR 与其邻近的 NR 之间发现了珊瑚物种数量、生物覆盖和多样性的明显差异。我们估计，即使在热带生态系统中，开发一个先进的多样化 AR 社区也需要十多年的时间。讨论了影响珊瑚礁环境中专门设计的 AR 物种组成的因素，包括结构设计、空间方向、深度和年龄。
Most artificial reef (AR) studies have examined the early colonization stages of benthic communities, while only a few have monitored the development of AR communities beyond the initial successional phases and evaluated the time scale needed for such development. In addition, despite the proliferation of AR studies, comparative studies between artificial and natural reefs (NRs) are scarce. We present here the monitoring results of initial (1–2 year) and progressed (10 year) stages of the developing benthic communities of a purpose-planned AR submerged at Eilat, Israel (Red Sea), and compare them to its adjacent NR. Visual surveys of macro-invertebrates were conducted on the initial stages and coral communities were characterized at the progressed stage, using belt transects. The results demonstrate a distinct shift in species composition of the AR communities along the monitoring periods: from a soft coral dominated community, comprised mainly of Dendronephthya hemprichi, in initial developmental stages of up to two years post-deployment, to a community dominated by the sponge Crella cyatophora at year 10. Distinct differences in coral species count, living cover and diversity were found between the AR and its neighboring NR. We estimate the time frame required to develop a progressed diverse AR community to be well over a decade, even in tropical ecosystems. The factors shaping the species composition of purpose-designed ARs in a coral reef environment, including structural design, spatial orientation, depth and age, are discussed.