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首页> 外文期刊>Estuarine Coastal and Shelf Science >Demography of the ecosystem engineer Crassostrea gigas, related to vertical reef accretion and reef persistence
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Demography of the ecosystem engineer Crassostrea gigas, related to vertical reef accretion and reef persistence

机译：生态系统工程师Crassostrea gigas的人口统计学，与垂直礁石的增加和礁石的持久性有关

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摘要

Marine species characterized as structure building, autogenic ecosystem engineers are recognized worldwide as potential tools for coastal adaptation efforts in the face of sea level rise. Successful employment of ecosystem engineers in coastal protection largely depends on long-term persistence of their structure, which is in turn dependent on the population dynamics of the individual species. Oysters, such as-the Pacific oyster (Crassostrea gigas), are recognized as ecosystem engineers with potential for use in coastal protection. Persistence of oyster reefs is strongly determined by recruitment and shell production (growth), processes facilitated by gregarious settlement on extant shell substrate. Although the Pacific oyster has been introduced world-wide, and has formed dense reefs in the receiving coastal waters, the population biology of live oysters and the quantitative mechanisms maintaining these reefs has rarely been studied, hence the aim of the present work. This study had two objectives: (1) to describe the demographics of extant C. gigas reefs, and (2) to estimate vertical reef accretion rates and carbonate production in these oyster reefs. Three long-living oyster reefs (>30 years old), which have not been exploited since their first occurrence, were examined in the Oosterschelde estuary in the Netherlands. A positive reef accretion rate (7.0-16.9 mm year(-1) shell material) was observed, consistent with self-maintenance and persistent structure. We provide a framework to predict reef accretion and population persistence under varying recruitment, growth and mortality scenarios. (C) 2015 Elsevier Ltd. All rights reserved.
机译：自成体系的生态系统工程师以构造建筑物为特征的海洋物种在全球范围内被公认为是面对海平面上升而进行海岸适应工作的潜在工具。生态系统工程师能否在沿海保护中成功就业很大程度上取决于其结构的长期持久性，而持久性又取决于各个物种的种群动态。牡蛎，例如太平洋牡蛎（Crassostrea gigas），是公认的生态系统工程师，有潜力在沿海保护中使用。牡蛎礁的持久性在很大程度上取决于招募和贝壳生产（生长），而这些过程是通过在现有贝壳底物上进行群居沉积而促进的。尽管太平洋牡蛎已在世界范围内引入，并在接收的沿海水域中形成了密集的珊瑚礁，但鲜有研究牡蛎的种群生物学和维持这些珊瑚礁的定量机制，因此，本研究的目的是。这项研究有两个目标：（1）描述现存的C. gigas礁的人口统计信息，以及（2）估计这些牡蛎礁的垂直礁石吸收率和碳酸盐产量。在荷兰的Oosterschelde河口检查了三个长寿牡蛎礁（> 30年），自它们第一次出现以来就没有被利用过。观察到珊瑚礁的正吸收率（壳材料为7.0-16.9 mm年（-1）），与自我维护和持久性结构一致。我们提供了一个框架，用于预测在不同招募，增长和死亡率情况下的珊瑚礁增生和种群持久性。 （C）2015 Elsevier Ltd.保留所有权利。

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  • 来源
    《Estuarine Coastal and Shelf Science》 |2015年第5期|224-233|共10页
  • 作者

    Walles Brenda; Mann Roger; Ysebaert Tom; Troost Karin; Herman Peter M. J.; Smaal Aad C.;

  • 作者单位

    IMARES Wageningen, Inst Marine Resources & Ecosyst Studies, NL-4400 AB Yerseke, Netherlands|Wageningen Univ & Res, Aquaculture & Fisheries Grp, NL-6700 AH Wageningen, Netherlands;

    Coll William & Mary, Virginia Inst Marine Sci, Gloucester Point, VA 23062 USA;

    IMARES Wageningen, Inst Marine Resources & Ecosyst Studies, NL-4400 AB Yerseke, Netherlands|Royal Netherlands Inst Sea Res, NIOZ Yerseke, NL-4400 AC Yerseke, Netherlands;

    IMARES Wageningen, Inst Marine Resources & Ecosyst Studies, NL-4400 AB Yerseke, Netherlands;

    Royal Netherlands Inst Sea Res, NIOZ Yerseke, NL-4400 AC Yerseke, Netherlands;

    IMARES Wageningen, Inst Marine Resources & Ecosyst Studies, NL-4400 AB Yerseke, Netherlands|Wageningen Univ & Res, Aquaculture & Fisheries Grp, NL-6700 AH Wageningen, Netherlands;

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  • 正文语种 eng
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  • 关键词

    biogenic carbonate; ecosystem engineer; population structure; accretion; persistence; Oosterschelde estuary;

    机译：生物碳酸盐;生态系统工程师;种群结构;吸积;持久性;Oosterschelde河口;

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