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首页> 外文学位 >Changes in Primary Production, Nutrient Fluxes, and Rates of Succession Following the Deployment of an Artificial Reef System in the Northeast Gulf of Mexico
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Changes in Primary Production, Nutrient Fluxes, and Rates of Succession Following the Deployment of an Artificial Reef System in the Northeast Gulf of Mexico

机译：在墨西哥东北海湾部署人工鱼礁系统后，初级生产，营养通量和演替速率的变化

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摘要

The use of artificial reef systems has grown rapidly in the United States since the mid 1900s in both freshwater and marine habitats. However, whether these artificial systems accomplish their proposed goal to provide value to marine life and humans alike remains widely controversial. Few studies have examined the benefits of primary producers and the resulting changes in biogeochemistry that may influence the surrounding water column. Nutrients such as nitrogen and phosphorous in the water column and sediment serve as important fuel for primary producers which partially drive reef success. In this study, I examined the organisms and their rate of colonization on an artificial reef on the shallow Florida shelf in the Northeast Gulf of Mexico during its introductory year. I measured primary production, respiration, and nutrient fluxes of reef materials in a controlled laboratory setting, examining temporal as well as spatial trends and variability. I observed temporal differences in biomass and chlorophyll a production due to changes in in situ conditions. Benthic invertebrate biomass was greater than micro- or macroalgal biomass. I determined the reef was net heterotrophic with few differences between oxygen or nutrient fluxes in the light and dark. Exponential growth of benthic invertebrate community occurred during the first five months of this study and leveled off during the remaining 5 months. Microbial activity was significant, particularly nitrification during the second half of the study.
机译：自1900年代中期以来，在淡水和海洋生境中，人工礁石系统的使用在美国迅速增长。然而，这些人工系统是否达到了为海洋生物和人类提供价值的拟议目标仍存在广泛争议。很少有研究检查初级生产者的利益以及可能影响周围水柱的生物地球化学变化。营养素，例如水柱和沉积物中的氮和磷，是初级生产者的重要燃料，这部分推动了礁石的成功。在这项研究中，我研究了墨西哥东北海湾在介绍年中在佛罗里达浅层架子上的人工鱼礁上的生物及其定殖速率。我在受控的实验室环境中测量了珊瑚礁材料的主要产量，呼吸作用和养分通量，研究了时间，空间趋势和变异性。我观察到由于原位条件的变化，生物量和叶绿素a产生的时间差异。底栖无脊椎动物生物量大于微藻或大型藻生物量。我确定珊瑚礁是净异养的，在明暗之间氧气或养分通量之间几乎没有差异。底栖无脊椎动物群落的指数增长发生在该研究的前五个月，并在剩余的五个月内趋于平稳。微生物活性显着，特别是在研究的下半年，硝化作用。

著录项

  • 作者

    Brooks, Kendra.;

  • 作者单位

    The University of West Florida.;

  • 授予单位 The University of West Florida.;
  • 学科 Biology.
  • 学位 M.S.
  • 年度 2018
  • 页码 69 p.
  • 总页数 69
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 F7-4;
  • 关键词

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