提高底栖生物多样性和初级生产力,降低沿海接收环境的浊度

IF 3.7 1区 地球科学 Q1 LIMNOLOGY
Andrew M. Lohrer, Orlando Lam-Gordillo, Emily J. Douglas, Richard H. Bulmer, Iain T. MacDonald
{"title":"提高底栖生物多样性和初级生产力,降低沿海接收环境的浊度","authors":"Andrew M. Lohrer,&nbsp;Orlando Lam-Gordillo,&nbsp;Emily J. Douglas,&nbsp;Richard H. Bulmer,&nbsp;Iain T. MacDonald","doi":"10.1002/lno.70129","DOIUrl":null,"url":null,"abstract":"<p>Sediment loading from land and turbidity in coastal waters has increased because of human activities in coastal catchments and through climate-related increases in storm intensity and frequency. Here, we investigated changes in coastal seafloor biodiversity and ecosystem function across a suspended sediment concentration gradient in a New Zealand nearshore receiving environment. Photosynthetically active sunlight radiation reaching the seafloor (PAR<sub>S</sub>) increased from shoreward to seaward, providing evidence of increasing water clarity with increasing distance away from the major source of sediment to the system, the Wairoa River. Using the aquatic eddy covariance technique, we observed the lowest and highest benthic gross primary productivity, respectively, at sites closest to and furthest from the Wairoa River mouth. The seafloor at the furthest site had the highest sediment chlorophyll <i>a</i> content, highest chlorophyll : phaeophytin ratio, and richest, most abundant, and most diverse infauna and epifauna. Sediment and faunal data from 12 additional ancillary sites provided context for the four focal sites where we measured functions. Net ecosystem metabolism represents the balance of daily gross primary production and community respiration (R), with negative values indicating net heterotrophy (i.e., gross primary production &lt; |R|). The most diverse and productive site away from the Wairoa River mouth had the most heterotrophic net ecosystem metabolism value, indicating that it was the largest net emitter of CO<sub>2</sub>. Our study highlights the importance of considering biodiversity and ecosystem function co-benefits when evaluating the carbon capture potential of coastal ecosystems.</p>","PeriodicalId":18143,"journal":{"name":"Limnology and Oceanography","volume":"70 9","pages":"2393-2404"},"PeriodicalIF":3.7000,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://aslopubs.onlinelibrary.wiley.com/doi/epdf/10.1002/lno.70129","citationCount":"0","resultStr":"{\"title\":\"Enhanced benthic biodiversity and primary productivity with reduced turbidity in a coastal receiving environment\",\"authors\":\"Andrew M. Lohrer,&nbsp;Orlando Lam-Gordillo,&nbsp;Emily J. Douglas,&nbsp;Richard H. Bulmer,&nbsp;Iain T. MacDonald\",\"doi\":\"10.1002/lno.70129\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Sediment loading from land and turbidity in coastal waters has increased because of human activities in coastal catchments and through climate-related increases in storm intensity and frequency. Here, we investigated changes in coastal seafloor biodiversity and ecosystem function across a suspended sediment concentration gradient in a New Zealand nearshore receiving environment. Photosynthetically active sunlight radiation reaching the seafloor (PAR<sub>S</sub>) increased from shoreward to seaward, providing evidence of increasing water clarity with increasing distance away from the major source of sediment to the system, the Wairoa River. Using the aquatic eddy covariance technique, we observed the lowest and highest benthic gross primary productivity, respectively, at sites closest to and furthest from the Wairoa River mouth. The seafloor at the furthest site had the highest sediment chlorophyll <i>a</i> content, highest chlorophyll : phaeophytin ratio, and richest, most abundant, and most diverse infauna and epifauna. Sediment and faunal data from 12 additional ancillary sites provided context for the four focal sites where we measured functions. Net ecosystem metabolism represents the balance of daily gross primary production and community respiration (R), with negative values indicating net heterotrophy (i.e., gross primary production &lt; |R|). The most diverse and productive site away from the Wairoa River mouth had the most heterotrophic net ecosystem metabolism value, indicating that it was the largest net emitter of CO<sub>2</sub>. Our study highlights the importance of considering biodiversity and ecosystem function co-benefits when evaluating the carbon capture potential of coastal ecosystems.</p>\",\"PeriodicalId\":18143,\"journal\":{\"name\":\"Limnology and Oceanography\",\"volume\":\"70 9\",\"pages\":\"2393-2404\"},\"PeriodicalIF\":3.7000,\"publicationDate\":\"2025-07-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://aslopubs.onlinelibrary.wiley.com/doi/epdf/10.1002/lno.70129\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Limnology and Oceanography\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://aslopubs.onlinelibrary.wiley.com/doi/10.1002/lno.70129\",\"RegionNum\":1,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"LIMNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Limnology and Oceanography","FirstCategoryId":"89","ListUrlMain":"https://aslopubs.onlinelibrary.wiley.com/doi/10.1002/lno.70129","RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"LIMNOLOGY","Score":null,"Total":0}
引用次数: 0

摘要

由于沿海集水区的人类活动以及与气候相关的风暴强度和频率的增加,来自陆地的泥沙负荷和沿海水域的浑浊度增加了。在这里,我们研究了新西兰近岸接收环境中悬浮沉积物浓度梯度对沿海海底生物多样性和生态系统功能的影响。到达海底的光合作用有效阳光辐射(PARS)从海岸向海洋方向增加,提供了从沉积物的主要来源到系统的距离增加,水的清晰度增加的证据,威罗亚河。利用水生涡旋相关技术,我们分别在离怀罗阿河口最近和最远的地点观察到底栖生物总初级生产力最低和最高。最远位置的海底沉积物叶绿素a含量最高,叶绿素与褐藻素之比最高,动物和表动物最丰富、最丰富、最多样化。来自12个附加辅助站点的沉积物和动物数据为我们测量功能的四个重点站点提供了背景。净生态系统代谢代表每日总初级生产和群落呼吸(R)的平衡,负值表示净异养(即总初级生产<;| |)。远离Wairoa河口的样地多样性和生产力最高,其异养净生态系统代谢值最高,表明其是最大的CO2净排放源。我们的研究强调了在评估沿海生态系统碳捕获潜力时考虑生物多样性和生态系统功能协同效益的重要性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Enhanced benthic biodiversity and primary productivity with reduced turbidity in a coastal receiving environment

Enhanced benthic biodiversity and primary productivity with reduced turbidity in a coastal receiving environment

Enhanced benthic biodiversity and primary productivity with reduced turbidity in a coastal receiving environment

Enhanced benthic biodiversity and primary productivity with reduced turbidity in a coastal receiving environment

Sediment loading from land and turbidity in coastal waters has increased because of human activities in coastal catchments and through climate-related increases in storm intensity and frequency. Here, we investigated changes in coastal seafloor biodiversity and ecosystem function across a suspended sediment concentration gradient in a New Zealand nearshore receiving environment. Photosynthetically active sunlight radiation reaching the seafloor (PARS) increased from shoreward to seaward, providing evidence of increasing water clarity with increasing distance away from the major source of sediment to the system, the Wairoa River. Using the aquatic eddy covariance technique, we observed the lowest and highest benthic gross primary productivity, respectively, at sites closest to and furthest from the Wairoa River mouth. The seafloor at the furthest site had the highest sediment chlorophyll a content, highest chlorophyll : phaeophytin ratio, and richest, most abundant, and most diverse infauna and epifauna. Sediment and faunal data from 12 additional ancillary sites provided context for the four focal sites where we measured functions. Net ecosystem metabolism represents the balance of daily gross primary production and community respiration (R), with negative values indicating net heterotrophy (i.e., gross primary production < |R|). The most diverse and productive site away from the Wairoa River mouth had the most heterotrophic net ecosystem metabolism value, indicating that it was the largest net emitter of CO2. Our study highlights the importance of considering biodiversity and ecosystem function co-benefits when evaluating the carbon capture potential of coastal ecosystems.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Limnology and Oceanography
Limnology and Oceanography 地学-海洋学
CiteScore
8.80
自引率
6.70%
发文量
254
审稿时长
3 months
期刊介绍: Limnology and Oceanography (L&O; print ISSN 0024-3590, online ISSN 1939-5590) publishes original articles, including scholarly reviews, about all aspects of limnology and oceanography. The journal''s unifying theme is the understanding of aquatic systems. Submissions are judged on the originality of their data, interpretations, and ideas, and on the degree to which they can be generalized beyond the particular aquatic system examined. Laboratory and modeling studies must demonstrate relevance to field environments; typically this means that they are bolstered by substantial "real-world" data. Few purely theoretical or purely empirical papers are accepted for review.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信