干旱区生态环境知识资源中心(Arid): Flow event size influences carbon, nutrient and zooplankton dynamics in a highly regulated lowland river

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DOI	10.1007/s10750-023-05392-3
	Flow event size influences carbon, nutrient and zooplankton dynamics in a highly regulated lowland river
	Balzer, M. J.; Hitchcock, J. N.; Kobayashi, T.; Westhorpe, D. P.; Boys, C.; Mitrovic, S. M.
通讯作者	Balzer, MJ
来源期刊	HYDROBIOLOGIA
ISSN	0018-8158
EISSN	1573-5117
出版年	2024
卷号	851 期号:5 页码:1319-1334
英文摘要	River regulation and water extraction has significantly altered flow regimes and reduced flood events in many inland river systems. Environmental flows have been adopted in many systems to mitigate the ecological impacts of river regulation, however a lack of knowledge regarding the interrelationship between flow regimes, carbon transport and instream productivity make prioritising water management difficult. To address this knowledge gap, we conducted a study on the Namoi River in the Murray-Darling Basin, Australia, monitoring changes in dissolved organic carbon (DOC), nutrient dynamics and planktonic food web structure during a period of variable flows. Nutrient and DOC concentrations were positively correlated with river discharge and zooplankton concentrations were highest post flow events. Planktonic chlorophyll-a, increased DOC concentration and higher discharge were the most influential drivers of change in zooplankton communities. Further, our results indicated that flow events increased production through both heterotrophic and autotrophic pathways, significantly boosting zooplankton concentration compared to base flow conditions across all measured flow events. We suggest even small in-channel flow events can be important for increasing basal and zooplankton production in rivers, and therefore should be protected or promoted by environmental flow management, particularly during drought conditions.
英文关键词	Zooplankton DOC Lowland rivers Riverine ecology Flow events
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:001091528700001
WOS关键词	DISSOLVED ORGANIC-CARBON ; MURRAY-DARLING BASIN ; ARID-ZONE RIVERS ; FRESH-WATER ; FOOD WEBS ; CRUSTACEAN ZOOPLANKTON ; ENVIRONMENTAL FLOWS ; TERRESTRIAL SUPPORT ; COMMUNITY STRUCTURE ; DRYLAND RIVER
WOS类目	Marine & Freshwater Biology
WOS研究方向	Marine & Freshwater Biology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404074
推荐引用方式 GB/T 7714	Balzer, M. J.,Hitchcock, J. N.,Kobayashi, T.,et al. Flow event size influences carbon, nutrient and zooplankton dynamics in a highly regulated lowland river[J],2024,851(5):1319-1334.
APA	Balzer, M. J.,Hitchcock, J. N.,Kobayashi, T.,Westhorpe, D. P.,Boys, C.,&Mitrovic, S. M..(2024).Flow event size influences carbon, nutrient and zooplankton dynamics in a highly regulated lowland river.HYDROBIOLOGIA,851(5),1319-1334.
MLA	Balzer, M. J.,et al."Flow event size influences carbon, nutrient and zooplankton dynamics in a highly regulated lowland river".HYDROBIOLOGIA 851.5(2024):1319-1334.