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| DOI | 10.1016/j.marpolbul.2016.04.054 |
| Excess seawater nutrients; enlarged algal symbiont densities and bleaching sensitive reef locations: 1. Identifying thresholds of concern for the Great Barrier Reef; Australia | |
| Wooldridge S.A. | |
| 发表日期 | 2020 |
| ISSN | 0025326X |
| 卷号 | 152 |
| 英文摘要 | Here, I contribute new insight into why excess seawater nutrients are an increasingly identified feature at reef locations that have low resistance to thermal stress. Specifically, I link this unfavourable synergism to the development of enlarged (suboptimal) zooxanthellae densities that paradoxically limit the capacity of the host coral to build tissue energy reserves needed to combat periods of stress. I explain how both theoretical predictions and field observations support the existence of species-specific ‘optimal’ zooxanthellae densities ~ 1.0–3.0 × 106 cells cm−2. For the central Great Barrier Reef (GBR), excess seawater nutrients that permit enlarged zooxanthellae densities beyond this optimum range are linked with seawater chlorophyll a > 0.45 μg·L− 1; a eutrophication threshold previously shown to correlate with a significant loss in species for hard corals and phototrophic octocorals on the central GBR, and herein shown to correlate with enhanced bleaching sensitivity during the 1998 and 2002 mass bleaching events. © 2016 Elsevier Ltd |
| 英文关键词 | Bleaching resistance; Coral health; Resilience; Symbiosis; Water quality |
| 语种 | 英语 |
| scopus关键词 | Bleaching; Cleaning; Eutrophication; Nutrients; Seawater; Water quality; Coral health; Energy reserves; Field observations; Great Barrier Reef; Low resistance; Resilience; Species specifics; Symbiosis; Reefs; chlorophyll a; sea water; chlorophyll a; sea water; chlorophyll; coral bleaching; ecosystem resilience; population density; seawater; stress resistance; symbiosis; water quality; zooxanthella; Acropora; alga; Article; Australia; bleaching; coral reef; eutrophication; nonhuman; phototrophy; population density; symbiont; temperature stress; animal; Anthozoa; coral reef; symbiosis; Australia; Coral Sea; Great Barrier Reef; Queensland; algae; Anthozoa; Animals; Anthozoa; Australia; Chlorophyll A; Coral Reefs; Nutrients; Seawater; Symbiosis |
| 来源期刊 | Marine Pollution Bulletin
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/149214 |
| 作者单位 | Catchment to Reef Management Solutions, Newcastle, NSW 2280, Australia |
| 推荐引用方式 GB/T 7714 | Wooldridge S.A.. Excess seawater nutrients; enlarged algal symbiont densities and bleaching sensitive reef locations: 1. Identifying thresholds of concern for the Great Barrier Reef; Australia[J],2020,152. |
| APA | Wooldridge S.A..(2020).Excess seawater nutrients; enlarged algal symbiont densities and bleaching sensitive reef locations: 1. Identifying thresholds of concern for the Great Barrier Reef; Australia.Marine Pollution Bulletin,152. |
| MLA | Wooldridge S.A.."Excess seawater nutrients; enlarged algal symbiont densities and bleaching sensitive reef locations: 1. Identifying thresholds of concern for the Great Barrier Reef; Australia".Marine Pollution Bulletin 152(2020). |
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