Spatial variation in zooplankton community structure is related to hydrologic flow units in the Missouri river, USA
Abstract Zooplankton are a vital link in the food webs of large rivers, and their communities are shaped by both local environmental features and advection. In the Missouri River, flow characteristics naturally change along its length, but human modifications to facilitate commercial transport have...
Published in: | River Research and Applications |
---|---|
Main Authors: | , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2009
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1002/rra.1268 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Frra.1268 https://onlinelibrary.wiley.com/doi/pdf/10.1002/rra.1268 |
id |
crwiley:10.1002/rra.1268 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1002/rra.1268 2024-09-15T18:41:39+00:00 Spatial variation in zooplankton community structure is related to hydrologic flow units in the Missouri river, USA Dickerson, K. D. Medley, K. A. Havel, J. E. U.S. Environmental Protection Agency 2009 http://dx.doi.org/10.1002/rra.1268 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Frra.1268 https://onlinelibrary.wiley.com/doi/pdf/10.1002/rra.1268 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor River Research and Applications volume 26, issue 5, page 605-618 ISSN 1535-1459 1535-1467 journal-article 2009 crwiley https://doi.org/10.1002/rra.1268 2024-08-09T04:21:45Z Abstract Zooplankton are a vital link in the food webs of large rivers, and their communities are shaped by both local environmental features and advection. In the Missouri River, flow characteristics naturally change along its length, but human modifications to facilitate commercial transport have altered natural flow in many sections of the river. We evaluated the effect of flow on zooplankton community structure at multiple spatial scales, and used multivariate analyses to evaluate the relative importance of flow and local abiotic environment on these communities. During July–September 2005, zooplankton samples and physico‐chemical measures were collected from the Missouri River main channel at 78 sites over a 2831 km range (Montana to Missouri). We identified a total of 30 cladoceran species, 22 copepod species and 27 rotifer genera, and we detected highly significant differences in zooplankton community structure among hydrologically distinct flow units and larger spatial zones. At the local scale, crustacean zooplankton and rotifers responded differently in the analyses. For copepods and cladocerans, distance from the nearest upstream reservoir explained more of the overall community pattern of the river than any other combination of environmental factors, reflecting the influence of dams on the zooplankton community of the Missouri River. For rotifers, a combination of flow characteristics due to impoundment and channelization and local environment (temperature) was important. Our study indicates that, because of the overwhelming effect of flow on zooplankton communities, hydrology must first be taken into account before zooplankton can be used as bioindicators of other environmental stresses. Copyright © 2009 John Wiley & Sons, Ltd. Article in Journal/Newspaper Copepods Rotifer Wiley Online Library River Research and Applications 26 5 605 618 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract Zooplankton are a vital link in the food webs of large rivers, and their communities are shaped by both local environmental features and advection. In the Missouri River, flow characteristics naturally change along its length, but human modifications to facilitate commercial transport have altered natural flow in many sections of the river. We evaluated the effect of flow on zooplankton community structure at multiple spatial scales, and used multivariate analyses to evaluate the relative importance of flow and local abiotic environment on these communities. During July–September 2005, zooplankton samples and physico‐chemical measures were collected from the Missouri River main channel at 78 sites over a 2831 km range (Montana to Missouri). We identified a total of 30 cladoceran species, 22 copepod species and 27 rotifer genera, and we detected highly significant differences in zooplankton community structure among hydrologically distinct flow units and larger spatial zones. At the local scale, crustacean zooplankton and rotifers responded differently in the analyses. For copepods and cladocerans, distance from the nearest upstream reservoir explained more of the overall community pattern of the river than any other combination of environmental factors, reflecting the influence of dams on the zooplankton community of the Missouri River. For rotifers, a combination of flow characteristics due to impoundment and channelization and local environment (temperature) was important. Our study indicates that, because of the overwhelming effect of flow on zooplankton communities, hydrology must first be taken into account before zooplankton can be used as bioindicators of other environmental stresses. Copyright © 2009 John Wiley & Sons, Ltd. |
author2 |
U.S. Environmental Protection Agency |
format |
Article in Journal/Newspaper |
author |
Dickerson, K. D. Medley, K. A. Havel, J. E. |
spellingShingle |
Dickerson, K. D. Medley, K. A. Havel, J. E. Spatial variation in zooplankton community structure is related to hydrologic flow units in the Missouri river, USA |
author_facet |
Dickerson, K. D. Medley, K. A. Havel, J. E. |
author_sort |
Dickerson, K. D. |
title |
Spatial variation in zooplankton community structure is related to hydrologic flow units in the Missouri river, USA |
title_short |
Spatial variation in zooplankton community structure is related to hydrologic flow units in the Missouri river, USA |
title_full |
Spatial variation in zooplankton community structure is related to hydrologic flow units in the Missouri river, USA |
title_fullStr |
Spatial variation in zooplankton community structure is related to hydrologic flow units in the Missouri river, USA |
title_full_unstemmed |
Spatial variation in zooplankton community structure is related to hydrologic flow units in the Missouri river, USA |
title_sort |
spatial variation in zooplankton community structure is related to hydrologic flow units in the missouri river, usa |
publisher |
Wiley |
publishDate |
2009 |
url |
http://dx.doi.org/10.1002/rra.1268 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Frra.1268 https://onlinelibrary.wiley.com/doi/pdf/10.1002/rra.1268 |
genre |
Copepods Rotifer |
genre_facet |
Copepods Rotifer |
op_source |
River Research and Applications volume 26, issue 5, page 605-618 ISSN 1535-1459 1535-1467 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/rra.1268 |
container_title |
River Research and Applications |
container_volume |
26 |
container_issue |
5 |
container_start_page |
605 |
op_container_end_page |
618 |
_version_ |
1810486040546246656 |