Warming and eutrophication combine to restructure diatoms and dinoflagellates

Wupeng Xiao, Xin Liu, Andrew J. Irwin, Edward A. Laws, Lei Wang, Bingzhang Chen, Yang Zeng, Bangqin Huang

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Temperature change and eutrophication are known to affect phytoplankton communities, but relatively little is known about the effects of interactions between simultaneous changes of temperature and nutrient loading in coastal ecosystems. Here we show that such interaction is key in driving diatom-dinoflagellate dynamics in the East China Sea. Diatoms and dinoflagellates responded differently to temperature, nutrient concentrations and ratios, and their interactions. Diatoms preferred lower temperature and higher nutrient concentrations, while dinoflagellates were less sensitive to temperature and nutrient concentrations, but tended to prevail at low phosphorus and high N:P ratio conditions. These different traits of diatoms and dinoflagellates resulted in the fact that both the effect of warming resulting in nutrients decline as a consequence of increasing stratification and the effect of increasing terrestrial nutrient input as a result of eutrophication might promote dinoflagellates over diatoms. We predict that conservative forecasts of environmental change by the year 2100 are likely to result in the decrease of diatoms in 60% and the increase of dinoflagellates in 70% of the surface water of the East China Sea, and project that mean diatoms should decrease by 19% while mean dinoflagellates should increase by 60% in the surface water of the coastal East China Sea. This analysis is based on a series of statistical niche models of the consequences of multiple environmental changes on diatom and dinoflagellate biomass in the East China Sea based on 2815 samples randomly collected from 23 cruises spanning 14 years (2002–2015). Our findings reveal that dinoflagellate blooms will be more frequent and intense, which will affect coastal ecosystem functioning.

LanguageEnglish
Pages206-216
Number of pages11
JournalWater Research
Volume128
Early online date24 Oct 2017
DOIs
Publication statusPublished - 1 Jan 2018

Fingerprint

Eutrophication
dinoflagellate
Nutrients
eutrophication
diatom
warming
nutrient
Surface waters
Ecosystems
Temperature
Phytoplankton
environmental change
temperature
surface water
Phosphorus
Biomass
niche
algal bloom
stratification
phytoplankton

Keywords

  • diatoms
  • dinoflagellates
  • eutrophication
  • generalized additive mixed models
  • The East China Sea
  • warming

Cite this

Xiao, Wupeng ; Liu, Xin ; Irwin, Andrew J. ; Laws, Edward A. ; Wang, Lei ; Chen, Bingzhang ; Zeng, Yang ; Huang, Bangqin. / Warming and eutrophication combine to restructure diatoms and dinoflagellates. In: Water Research. 2018 ; Vol. 128. pp. 206-216.
@article{bf2c8aa22af04d3c8ba6fc85f8f02746,
title = "Warming and eutrophication combine to restructure diatoms and dinoflagellates",
abstract = "Temperature change and eutrophication are known to affect phytoplankton communities, but relatively little is known about the effects of interactions between simultaneous changes of temperature and nutrient loading in coastal ecosystems. Here we show that such interaction is key in driving diatom-dinoflagellate dynamics in the East China Sea. Diatoms and dinoflagellates responded differently to temperature, nutrient concentrations and ratios, and their interactions. Diatoms preferred lower temperature and higher nutrient concentrations, while dinoflagellates were less sensitive to temperature and nutrient concentrations, but tended to prevail at low phosphorus and high N:P ratio conditions. These different traits of diatoms and dinoflagellates resulted in the fact that both the effect of warming resulting in nutrients decline as a consequence of increasing stratification and the effect of increasing terrestrial nutrient input as a result of eutrophication might promote dinoflagellates over diatoms. We predict that conservative forecasts of environmental change by the year 2100 are likely to result in the decrease of diatoms in 60{\%} and the increase of dinoflagellates in 70{\%} of the surface water of the East China Sea, and project that mean diatoms should decrease by 19{\%} while mean dinoflagellates should increase by 60{\%} in the surface water of the coastal East China Sea. This analysis is based on a series of statistical niche models of the consequences of multiple environmental changes on diatom and dinoflagellate biomass in the East China Sea based on 2815 samples randomly collected from 23 cruises spanning 14 years (2002–2015). Our findings reveal that dinoflagellate blooms will be more frequent and intense, which will affect coastal ecosystem functioning.",
keywords = "diatoms, dinoflagellates, eutrophication, generalized additive mixed models, The East China Sea, warming",
author = "Wupeng Xiao and Xin Liu and Irwin, {Andrew J.} and Laws, {Edward A.} and Lei Wang and Bingzhang Chen and Yang Zeng and Bangqin Huang",
year = "2018",
month = "1",
day = "1",
doi = "10.1016/j.watres.2017.10.051",
language = "English",
volume = "128",
pages = "206--216",
journal = "Water Research",
issn = "0043-1354",

}

Xiao, W, Liu, X, Irwin, AJ, Laws, EA, Wang, L, Chen, B, Zeng, Y & Huang, B 2018, 'Warming and eutrophication combine to restructure diatoms and dinoflagellates' Water Research, vol. 128, pp. 206-216. https://doi.org/10.1016/j.watres.2017.10.051

Warming and eutrophication combine to restructure diatoms and dinoflagellates. / Xiao, Wupeng; Liu, Xin; Irwin, Andrew J.; Laws, Edward A.; Wang, Lei; Chen, Bingzhang; Zeng, Yang; Huang, Bangqin.

In: Water Research, Vol. 128, 01.01.2018, p. 206-216.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Warming and eutrophication combine to restructure diatoms and dinoflagellates

AU - Xiao, Wupeng

AU - Liu, Xin

AU - Irwin, Andrew J.

AU - Laws, Edward A.

AU - Wang, Lei

AU - Chen, Bingzhang

AU - Zeng, Yang

AU - Huang, Bangqin

PY - 2018/1/1

Y1 - 2018/1/1

N2 - Temperature change and eutrophication are known to affect phytoplankton communities, but relatively little is known about the effects of interactions between simultaneous changes of temperature and nutrient loading in coastal ecosystems. Here we show that such interaction is key in driving diatom-dinoflagellate dynamics in the East China Sea. Diatoms and dinoflagellates responded differently to temperature, nutrient concentrations and ratios, and their interactions. Diatoms preferred lower temperature and higher nutrient concentrations, while dinoflagellates were less sensitive to temperature and nutrient concentrations, but tended to prevail at low phosphorus and high N:P ratio conditions. These different traits of diatoms and dinoflagellates resulted in the fact that both the effect of warming resulting in nutrients decline as a consequence of increasing stratification and the effect of increasing terrestrial nutrient input as a result of eutrophication might promote dinoflagellates over diatoms. We predict that conservative forecasts of environmental change by the year 2100 are likely to result in the decrease of diatoms in 60% and the increase of dinoflagellates in 70% of the surface water of the East China Sea, and project that mean diatoms should decrease by 19% while mean dinoflagellates should increase by 60% in the surface water of the coastal East China Sea. This analysis is based on a series of statistical niche models of the consequences of multiple environmental changes on diatom and dinoflagellate biomass in the East China Sea based on 2815 samples randomly collected from 23 cruises spanning 14 years (2002–2015). Our findings reveal that dinoflagellate blooms will be more frequent and intense, which will affect coastal ecosystem functioning.

AB - Temperature change and eutrophication are known to affect phytoplankton communities, but relatively little is known about the effects of interactions between simultaneous changes of temperature and nutrient loading in coastal ecosystems. Here we show that such interaction is key in driving diatom-dinoflagellate dynamics in the East China Sea. Diatoms and dinoflagellates responded differently to temperature, nutrient concentrations and ratios, and their interactions. Diatoms preferred lower temperature and higher nutrient concentrations, while dinoflagellates were less sensitive to temperature and nutrient concentrations, but tended to prevail at low phosphorus and high N:P ratio conditions. These different traits of diatoms and dinoflagellates resulted in the fact that both the effect of warming resulting in nutrients decline as a consequence of increasing stratification and the effect of increasing terrestrial nutrient input as a result of eutrophication might promote dinoflagellates over diatoms. We predict that conservative forecasts of environmental change by the year 2100 are likely to result in the decrease of diatoms in 60% and the increase of dinoflagellates in 70% of the surface water of the East China Sea, and project that mean diatoms should decrease by 19% while mean dinoflagellates should increase by 60% in the surface water of the coastal East China Sea. This analysis is based on a series of statistical niche models of the consequences of multiple environmental changes on diatom and dinoflagellate biomass in the East China Sea based on 2815 samples randomly collected from 23 cruises spanning 14 years (2002–2015). Our findings reveal that dinoflagellate blooms will be more frequent and intense, which will affect coastal ecosystem functioning.

KW - diatoms

KW - dinoflagellates

KW - eutrophication

KW - generalized additive mixed models

KW - The East China Sea

KW - warming

UR - http://www.scopus.com/inward/record.url?scp=85032665789&partnerID=8YFLogxK

U2 - 10.1016/j.watres.2017.10.051

DO - 10.1016/j.watres.2017.10.051

M3 - Article

VL - 128

SP - 206

EP - 216

JO - Water Research

T2 - Water Research

JF - Water Research

SN - 0043-1354

ER -