浮游动物排泄物对太平洋北极地区斜坡颗粒有机碳通量贡献的季节性变化

IF 3.8 3区 地球科学 Q1 OCEANOGRAPHY
Jeong-Hyun Kim , Catherine Lalande , Eun Jin Yang , Kyoung-Ho Cho , Dongseon Kim , Jong-Kuk Moon , Hyeju Yoo
{"title":"浮游动物排泄物对太平洋北极地区斜坡颗粒有机碳通量贡献的季节性变化","authors":"Jeong-Hyun Kim ,&nbsp;Catherine Lalande ,&nbsp;Eun Jin Yang ,&nbsp;Kyoung-Ho Cho ,&nbsp;Dongseon Kim ,&nbsp;Jong-Kuk Moon ,&nbsp;Hyeju Yoo","doi":"10.1016/j.pocean.2024.103335","DOIUrl":null,"url":null,"abstract":"<div><p>As part of the Korea Arctic Mooring System (KAMS), sequential sediment traps were deployed at KAMS1 over the East Siberian Sea slope (∼115 and ∼335 m) and at KAMS2 over the Chukchi Sea slope (325 m) to collect sinking particles from August 2017 to August 2019. Fecal pellet carbon (FPC) fluxes and their contribution to the particulate organic carbon (POC) fluxes were measured to assess the role of zooplankton fecal pellets in the biological carbon pump at both sites. FPC fluxes increased at the onset of an under-ice bloom and peaked during the melt period at both sites in 2018. At KAMS1, a remarkable increase in FPC fluxes reflected the enhanced grazing of large copepods during the anomalously productive spring and summer of 2018, however their contributions to the POC fluxes mostly remained &lt;10%. At KAMS2, relatively low FPC fluxes during the under-ice bloom suggested the export of a larger proportion of pellets produced by small copepods. Sustained FPC fluxes from January to May 2018 at KAMS2 contributed up to 24% of the POC fluxes, possibly resulting from pellet production by overwintering copepods grazing on particles laterally transported into the region in the presence of ice. These results indicate that despite their limited contribution to the POC fluxes, FPC fluxes varied with food availability, zooplankton community structure, and hydrographic conditions over the East Siberian and Chukchi Sea slopes.</p></div>","PeriodicalId":20620,"journal":{"name":"Progress in Oceanography","volume":"228 ","pages":"Article 103335"},"PeriodicalIF":3.8000,"publicationDate":"2024-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Seasonal variations in the contribution of zooplankton fecal pellets to the particulate organic carbon fluxes over the slopes of the Pacific Arctic region\",\"authors\":\"Jeong-Hyun Kim ,&nbsp;Catherine Lalande ,&nbsp;Eun Jin Yang ,&nbsp;Kyoung-Ho Cho ,&nbsp;Dongseon Kim ,&nbsp;Jong-Kuk Moon ,&nbsp;Hyeju Yoo\",\"doi\":\"10.1016/j.pocean.2024.103335\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>As part of the Korea Arctic Mooring System (KAMS), sequential sediment traps were deployed at KAMS1 over the East Siberian Sea slope (∼115 and ∼335 m) and at KAMS2 over the Chukchi Sea slope (325 m) to collect sinking particles from August 2017 to August 2019. Fecal pellet carbon (FPC) fluxes and their contribution to the particulate organic carbon (POC) fluxes were measured to assess the role of zooplankton fecal pellets in the biological carbon pump at both sites. FPC fluxes increased at the onset of an under-ice bloom and peaked during the melt period at both sites in 2018. At KAMS1, a remarkable increase in FPC fluxes reflected the enhanced grazing of large copepods during the anomalously productive spring and summer of 2018, however their contributions to the POC fluxes mostly remained &lt;10%. At KAMS2, relatively low FPC fluxes during the under-ice bloom suggested the export of a larger proportion of pellets produced by small copepods. Sustained FPC fluxes from January to May 2018 at KAMS2 contributed up to 24% of the POC fluxes, possibly resulting from pellet production by overwintering copepods grazing on particles laterally transported into the region in the presence of ice. These results indicate that despite their limited contribution to the POC fluxes, FPC fluxes varied with food availability, zooplankton community structure, and hydrographic conditions over the East Siberian and Chukchi Sea slopes.</p></div>\",\"PeriodicalId\":20620,\"journal\":{\"name\":\"Progress in Oceanography\",\"volume\":\"228 \",\"pages\":\"Article 103335\"},\"PeriodicalIF\":3.8000,\"publicationDate\":\"2024-08-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Progress in Oceanography\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0079661124001411\",\"RegionNum\":3,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"OCEANOGRAPHY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Progress in Oceanography","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0079661124001411","RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"OCEANOGRAPHY","Score":null,"Total":0}
引用次数: 0

摘要

作为韩国北极系泊系统(KAMS)的一部分,2017 年 8 月至 2019 年 8 月期间,在东西伯利亚海斜坡(115 米至∼335 米)的 KAMS1 和楚科奇海斜坡(325 米)的 KAMS2 上部署了连续沉积物捕集器,以收集下沉颗粒。测量了粪便颗粒碳(FPC)通量及其对颗粒有机碳(POC)通量的贡献,以评估浮游动物粪便颗粒在这两个地点的生物碳泵中的作用。FPC 通量在冰下水华开始时增加,并在 2018 年两个站点的融化期达到峰值。在KAMS1,FPC通量显著增加,反映了大型桡足类在2018年异常高产的春季和夏季加强了捕食,然而它们对POC通量的贡献大多保持在<10%。在 KAMS2,冰下水华期间相对较低的 FPC 通量表明,小型桡足类产生的颗粒的出口比例较大。2018 年 1 月至 5 月,KAMS2 的持续 FPC 通量贡献了高达 24% 的 POC 通量,这可能是由于越冬桡足类在有冰的情况下捕食横向运入该区域的颗粒而产生的颗粒。这些结果表明,尽管对 POC 通量的贡献有限,但 FPC 通量随东西伯利亚和楚科奇海斜坡的食物供应、浮游动物群落结构和水文条件而变化。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Seasonal variations in the contribution of zooplankton fecal pellets to the particulate organic carbon fluxes over the slopes of the Pacific Arctic region

As part of the Korea Arctic Mooring System (KAMS), sequential sediment traps were deployed at KAMS1 over the East Siberian Sea slope (∼115 and ∼335 m) and at KAMS2 over the Chukchi Sea slope (325 m) to collect sinking particles from August 2017 to August 2019. Fecal pellet carbon (FPC) fluxes and their contribution to the particulate organic carbon (POC) fluxes were measured to assess the role of zooplankton fecal pellets in the biological carbon pump at both sites. FPC fluxes increased at the onset of an under-ice bloom and peaked during the melt period at both sites in 2018. At KAMS1, a remarkable increase in FPC fluxes reflected the enhanced grazing of large copepods during the anomalously productive spring and summer of 2018, however their contributions to the POC fluxes mostly remained <10%. At KAMS2, relatively low FPC fluxes during the under-ice bloom suggested the export of a larger proportion of pellets produced by small copepods. Sustained FPC fluxes from January to May 2018 at KAMS2 contributed up to 24% of the POC fluxes, possibly resulting from pellet production by overwintering copepods grazing on particles laterally transported into the region in the presence of ice. These results indicate that despite their limited contribution to the POC fluxes, FPC fluxes varied with food availability, zooplankton community structure, and hydrographic conditions over the East Siberian and Chukchi Sea slopes.

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
Progress in Oceanography
Progress in Oceanography 地学-海洋学
CiteScore
7.20
自引率
4.90%
发文量
138
审稿时长
3 months
期刊介绍: Progress in Oceanography publishes the longer, more comprehensive papers that most oceanographers feel are necessary, on occasion, to do justice to their work. Contributions are generally either a review of an aspect of oceanography or a treatise on an expanding oceanographic subject. The articles cover the entire spectrum of disciplines within the science of oceanography. Occasionally volumes are devoted to collections of papers and conference proceedings of exceptional interest. Essential reading for all oceanographers.
×
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:481959085
Book学术官方微信