Biogeographic variations of picophytoplankton in three contrasting seas: the Bay of Bengal, South China Sea and Western Pacific Ocean

IF 1.6 4区 环境科学与生态学 Q3 ECOLOGY Aquatic Microbial Ecology Pub Date : 2020-04-09 DOI:10.3354/ame01928
Yuqiu Wei, Danyue Huang, Guicheng Zhang, Yuying Zhao, Jun Sun
{"title":"Biogeographic variations of picophytoplankton in three contrasting seas: the Bay of Bengal, South China Sea and Western Pacific Ocean","authors":"Yuqiu Wei, Danyue Huang, Guicheng Zhang, Yuying Zhao, Jun Sun","doi":"10.3354/ame01928","DOIUrl":null,"url":null,"abstract":"Marine picophytoplankton are abundant in many oligotrophic oceans, but the known geographical patterns of picophytoplankton are primarily based on small-scale cruises or timeseries observations. Here, we conducted a wider survey (5 cruises) in the Bay of Bengal (BOB), South China Sea (SCS) and Western Pacific Ocean (WPO) to better understand the biogeographic variations of picophytoplankton. Prochlorococcus (Pro) were the most abundant picophytoplankton (averaging [1.9−3.6] × 104 cells ml−1) across the 3 seas, while average abundances of Synechococcus (Syn) and picoeukaryotes (PEuks) were generally 1−2 orders of magnitude lower than Pro. Average abundances of total picophytoplankton were similar between the BOB and SCS (4.7 × 104 cells ml−1), but were close to 2-fold less abundant in the WPO (2.5 × 104 cells ml−1). Pro and Syn accounted for a substantial fraction of total picophytoplankton biomass (70−83%) in the 3 contrasting seas, indicating the ecological importance of Pro and Syn as primary producers. Pro were generally abundant in oligotrophic open waters; however, the exceptional presence of Pro near the SCS coast was potentially associated with the Kuroshio intrusion. Syn and PEuk abundances were higher near freshwater-dominated areas, which was likely due to dilution waters. Water temperature and cold eddies were also major drivers responsible for the biogeographic distributions of picophytoplankton. Although Pro, Syn and PEuks showed negative correlations with nutrient concentrations, their maximal abundances in vertical distribution showed positive correlations with the nutricline depth, indicating that nutrient availability plays a 2-faceted role in regulating the biogeographic variation in picophytoplankton.","PeriodicalId":8112,"journal":{"name":"Aquatic Microbial Ecology","volume":"89 1","pages":"91-103"},"PeriodicalIF":1.6000,"publicationDate":"2020-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"22","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Aquatic Microbial Ecology","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.3354/ame01928","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ECOLOGY","Score":null,"Total":0}
引用次数: 22

Abstract

Marine picophytoplankton are abundant in many oligotrophic oceans, but the known geographical patterns of picophytoplankton are primarily based on small-scale cruises or timeseries observations. Here, we conducted a wider survey (5 cruises) in the Bay of Bengal (BOB), South China Sea (SCS) and Western Pacific Ocean (WPO) to better understand the biogeographic variations of picophytoplankton. Prochlorococcus (Pro) were the most abundant picophytoplankton (averaging [1.9−3.6] × 104 cells ml−1) across the 3 seas, while average abundances of Synechococcus (Syn) and picoeukaryotes (PEuks) were generally 1−2 orders of magnitude lower than Pro. Average abundances of total picophytoplankton were similar between the BOB and SCS (4.7 × 104 cells ml−1), but were close to 2-fold less abundant in the WPO (2.5 × 104 cells ml−1). Pro and Syn accounted for a substantial fraction of total picophytoplankton biomass (70−83%) in the 3 contrasting seas, indicating the ecological importance of Pro and Syn as primary producers. Pro were generally abundant in oligotrophic open waters; however, the exceptional presence of Pro near the SCS coast was potentially associated with the Kuroshio intrusion. Syn and PEuk abundances were higher near freshwater-dominated areas, which was likely due to dilution waters. Water temperature and cold eddies were also major drivers responsible for the biogeographic distributions of picophytoplankton. Although Pro, Syn and PEuks showed negative correlations with nutrient concentrations, their maximal abundances in vertical distribution showed positive correlations with the nutricline depth, indicating that nutrient availability plays a 2-faceted role in regulating the biogeographic variation in picophytoplankton.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
孟加拉湾、南海和西太平洋三个对比海域浮游植物的生物地理变异
海洋浮游植物在许多低营养海洋中丰富,但已知的浮游植物地理分布模式主要是基于小尺度巡航或时间序列观测。本文在孟加拉湾(BOB)、南海(SCS)和西太平洋(WPO)进行了更广泛的调查(5次巡航),以更好地了解浮游植物的生物地理变化。原绿球藻(Pro)是3个海洋中最丰富的浮游植物(平均[1.9 ~ 3.6]× 104细胞ml - 1),而聚球藻(Syn)和皮真核生物(PEuks)的平均丰度普遍比Pro低1 ~ 2个数量级。总浮游植物的平均丰度在BOB和SCS之间相似(4.7 × 104 cells ml - 1),但在WPO (2.5 × 104 cells ml - 1)中少了近2倍(2.5 × 104 cells ml - 1)。在3个对比海域中,Pro和Syn占浮游植物总生物量的很大一部分(70 ~ 83%),表明Pro和Syn作为初级生产者的生态重要性。Pro在贫营养开阔水域普遍丰富;然而,Pro在南海海岸附近的特殊存在可能与黑潮入侵有关。Syn和PEuk丰度在淡水为主的地区较高,这可能是由于稀释了水。水温和冷涡也是浮游植物生物地理分布的主要驱动因素。尽管Pro、Syn和PEuks与营养物浓度呈负相关,但它们在垂直分布上的最大丰度与营养物线深度呈正相关,表明营养物有效性在调节浮游植物生物地理变异中起着双重作用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
Aquatic Microbial Ecology
Aquatic Microbial Ecology 环境科学-海洋与淡水生物学
CiteScore
3.30
自引率
0.00%
发文量
8
审稿时长
3.0 months
期刊介绍: AME is international and interdisciplinary. It presents rigorously refereed and carefully selected Research Articles, Reviews and Notes, as well as Comments/Reply Comments (for details see AME 27:209), Opinion Pieces (previously called ''As I See It'') and AME Specials. For details consult the Guidelines for Authors. Papers may be concerned with: Tolerances and responses of microorganisms to variations in abiotic and biotic components of their environment; microbial life under extreme environmental conditions (climate, temperature, pressure, osmolarity, redox, etc.). Role of aquatic microorganisms in the production, transformation and decomposition of organic matter; flow patterns of energy and matter as these pass through microorganisms; population dynamics; trophic interrelationships; modelling, both theoretical and via computer simulation, of individual microorganisms and microbial populations; biodiversity. Absorption and transformation of inorganic material; synthesis and transformation of organic material (autotrophic and heterotrophic); non-genetic and genetic adaptation; behaviour; molecular microbial ecology; symbioses.
期刊最新文献
Shore and mid-channel surveys reveal distinct phytoplankton-bacterial population associations along an urban estuary Complementary chromatic acclimation by shifts in phycobiliprotein spectral absorption in the cryptophyte Hemiselmis pacifica Near-benthic coral reef picoplankton vary at fine scales decoupled from benthic cover Salinity gradient differentiates potential novel ecotypes and diversity of Labyrinthulomycetes protists along the Haihe River, northern China Species sorting as the major driver of turnover for both planktonic and periphytic bacteria and the subgroup cyanobacteria in a subtropical lake system
×
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
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 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 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1