How do natural changes in flow magnitude affect fish abundance and diversity in temperate regions? A systematic review protocol

Abstract Natural flow regimes play important roles in maintaining the ecological integrity and diversity of aquatic ecosystems. Wildlife has adapted over time to the natural dynamics of their environment, including changes in flow regimes. Changes in flow, including changes in magnitude, frequency,...

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Autores principales:	Kim Birnie‐Gauvin, Trina Rytwinski, Meagan Harper, Jessica J. Taylor, Adrienne Smith, Karen E. Smokorowski, Katrine Turgeon, Michael J. Bradford, Steven J. Cooke
Formato:	article
Lenguaje:	EN
Publicado:	Wiley 2021
Materias:	climate change discharge drought evidence synthesis flood flow modification Environmental sciences GE1-350 Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/cdfb4e4829ac4cb4872c9cb544a5ab8a
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spelling	oai:doaj.org-article:cdfb4e4829ac4cb4872c9cb544a5ab8a2021-11-16T08:30:39ZHow do natural changes in flow magnitude affect fish abundance and diversity in temperate regions? A systematic review protocol2688-831910.1002/2688-8319.12079https://doaj.org/article/cdfb4e4829ac4cb4872c9cb544a5ab8a2021-04-01T00:00:00Zhttps://doi.org/10.1002/2688-8319.12079https://doaj.org/toc/2688-8319Abstract Natural flow regimes play important roles in maintaining the ecological integrity and diversity of aquatic ecosystems. Wildlife has adapted over time to the natural dynamics of their environment, including changes in flow regimes. Changes in flow, including changes in magnitude, frequency, duration, timing and rate of change, may affect the physical characteristics of aquatic habitats, access to habitats, food availability, population dynamics and community composition. Given the importance of natural flow regimes for fish, it is necessary to understand the extent to which natural flow regimes alter fish abundance and diversity. Here we present a protocol for a systematic review that will estimate how fish abundance and diversity are affected by natural variation (resulting from climatic variability and broad‐scale drivers such as climate‐induced change) in flow. This systematic review will use evidence published before 2016 that was identified in a recent systematic mapping exercise on the broader topic of flow regime change impacts (both natural and anthropogenic) on direct outcomes of freshwater or estuarine fish productivity. An updated English language search will be performed using six bibliographic databases, Google Scholar and networking tools to include commercially published and grey literature that has been published after 2016. Eligibility screening will be conducted at two stages: title and abstract, and full‐text. We will include all studies that evaluate the effect of natural changes in flow magnitude on fish abundance (broadly defined to also capture density and biomass metrics) and species diversity (broadly defined to also capture species richness and composition metrics). Any freshwater or estuarine fish species in temperate regions will be considered. Included eligible studies will be assessed for study validity. We will extract information on study characteristics, intervention/comparator details, measured outcomes and effect modifiers. A narrative synthesis will describe the quantity and characteristics of the available evidence, and where sufficient numbers of similar studies are available, a meta‐analysis will be conducted to estimate an overall mean and variance of effect.Kim Birnie‐GauvinTrina RytwinskiMeagan HarperJessica J. TaylorAdrienne SmithKaren E. SmokorowskiKatrine TurgeonMichael J. BradfordSteven J. CookeWileyarticleclimate changedischargedroughtevidence synthesisfloodflow modificationEnvironmental sciencesGE1-350EcologyQH540-549.5ENEcological Solutions and Evidence, Vol 2, Iss 2, Pp n/a-n/a (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	climate change discharge drought evidence synthesis flood flow modification Environmental sciences GE1-350 Ecology QH540-549.5
spellingShingle	climate change discharge drought evidence synthesis flood flow modification Environmental sciences GE1-350 Ecology QH540-549.5 Kim Birnie‐Gauvin Trina Rytwinski Meagan Harper Jessica J. Taylor Adrienne Smith Karen E. Smokorowski Katrine Turgeon Michael J. Bradford Steven J. Cooke How do natural changes in flow magnitude affect fish abundance and diversity in temperate regions? A systematic review protocol
description	Abstract Natural flow regimes play important roles in maintaining the ecological integrity and diversity of aquatic ecosystems. Wildlife has adapted over time to the natural dynamics of their environment, including changes in flow regimes. Changes in flow, including changes in magnitude, frequency, duration, timing and rate of change, may affect the physical characteristics of aquatic habitats, access to habitats, food availability, population dynamics and community composition. Given the importance of natural flow regimes for fish, it is necessary to understand the extent to which natural flow regimes alter fish abundance and diversity. Here we present a protocol for a systematic review that will estimate how fish abundance and diversity are affected by natural variation (resulting from climatic variability and broad‐scale drivers such as climate‐induced change) in flow. This systematic review will use evidence published before 2016 that was identified in a recent systematic mapping exercise on the broader topic of flow regime change impacts (both natural and anthropogenic) on direct outcomes of freshwater or estuarine fish productivity. An updated English language search will be performed using six bibliographic databases, Google Scholar and networking tools to include commercially published and grey literature that has been published after 2016. Eligibility screening will be conducted at two stages: title and abstract, and full‐text. We will include all studies that evaluate the effect of natural changes in flow magnitude on fish abundance (broadly defined to also capture density and biomass metrics) and species diversity (broadly defined to also capture species richness and composition metrics). Any freshwater or estuarine fish species in temperate regions will be considered. Included eligible studies will be assessed for study validity. We will extract information on study characteristics, intervention/comparator details, measured outcomes and effect modifiers. A narrative synthesis will describe the quantity and characteristics of the available evidence, and where sufficient numbers of similar studies are available, a meta‐analysis will be conducted to estimate an overall mean and variance of effect.
format	article
author	Kim Birnie‐Gauvin Trina Rytwinski Meagan Harper Jessica J. Taylor Adrienne Smith Karen E. Smokorowski Katrine Turgeon Michael J. Bradford Steven J. Cooke
author_facet	Kim Birnie‐Gauvin Trina Rytwinski Meagan Harper Jessica J. Taylor Adrienne Smith Karen E. Smokorowski Katrine Turgeon Michael J. Bradford Steven J. Cooke
author_sort	Kim Birnie‐Gauvin
title	How do natural changes in flow magnitude affect fish abundance and diversity in temperate regions? A systematic review protocol
title_short	How do natural changes in flow magnitude affect fish abundance and diversity in temperate regions? A systematic review protocol
title_full	How do natural changes in flow magnitude affect fish abundance and diversity in temperate regions? A systematic review protocol
title_fullStr	How do natural changes in flow magnitude affect fish abundance and diversity in temperate regions? A systematic review protocol
title_full_unstemmed	How do natural changes in flow magnitude affect fish abundance and diversity in temperate regions? A systematic review protocol
title_sort	how do natural changes in flow magnitude affect fish abundance and diversity in temperate regions? a systematic review protocol
publisher	Wiley
publishDate	2021
url	https://doaj.org/article/cdfb4e4829ac4cb4872c9cb544a5ab8a
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How do natural changes in flow magnitude affect fish abundance and diversity in temperate regions? A systematic review protocol

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