Next Article in Journal
Assessing the Ecological Water Level: The Case of Four Mediterranean Lakes
Next Article in Special Issue
Long-Term Oxbow Lake Trophic State under Agricultural Best Management Practices
Previous Article in Journal
Temporal Dynamics of Fish Assemblages as a Reflection of Policy Shift from Fishing Concession to Co-Management in One of the World’s Largest Tropical Flood Pulse Fisheries
Open AccessFeature PaperEditor’s ChoiceArticle

Influence of Physical and Chemical Characteristics of Sediment on Macroinvertebrate Communities in Agricultural Headwater Streams

1
Department of Biology, Purdue University Fort Wayne, Fort Wayne, IN 46805, USA
2
USDA Agricultural Research Service, Columbus, OH 43210, USA
3
USDA Agricultural Research Service, West Lafayette, IN 47907, USA
*
Author to whom correspondence should be addressed.
Water 2020, 12(11), 2976; https://doi.org/10.3390/w12112976
Received: 18 September 2020 / Revised: 19 October 2020 / Accepted: 20 October 2020 / Published: 23 October 2020
Agricultural land use leads to changes in physical and chemical characteristics of sediment that influence macroinvertebrate community diversity and abundance in streams. To the best of our knowledge the joint influence of sediment’s physical and chemical characteristics on stream macroinvertebrates has not been assessed. We measured sediment’s physical and chemical characteristics and sampled macroinvertebrates in eight agricultural headwater streams in Indiana, Michigan, and Ohio, United States, in 2017 and 2018 to determine the physical and chemical conditions of the sediment, to evaluate the relationships between physical and chemical characteristics of the sediment, and the relationship of macroinvertebrate communities with the sediment’s physical and chemical characteristics. Sediments within most sites were dominated by sand or silt. pH was suitable for macroinvertebrates and nitrate, herbicide, and trace metal concentrations were below concentration levels anticipated to affect macroinvertebrate survival. Linear mixed effect model analysis results indicated that a physical gradient of percent small gravel and percent silt was positively correlated (p < 0.05) with a chemical gradient of potassium concentrations, magnesium concentrations, and percent total nitrogen in the sediments. Our linear mixed effect model analysis results also indicated that Invertebrate Community Index scores were negatively correlated (p < 0.05) with a chemical gradient of simazine and calcium concentrations and were negatively correlated (p < 0.05) with physical gradient of grain size diversity and percent sand. Our results suggest that watershed management plans need to address physical and chemical degradation of sediment to improve macroinvertebrate biotic integrity within agricultural headwater streams in the Midwestern United States. View Full-Text
Keywords: nutrients; pesticides; trace metals; Invertebrate Community Index; macroinvertebrate-habitat relationships nutrients; pesticides; trace metals; Invertebrate Community Index; macroinvertebrate-habitat relationships
Show Figures

Figure 1

MDPI and ACS Style

Shuman, T.C.; Smiley, P.C., Jr.; Gillespie, R.B.; Gonzalez, J.M. Influence of Physical and Chemical Characteristics of Sediment on Macroinvertebrate Communities in Agricultural Headwater Streams. Water 2020, 12, 2976. https://doi.org/10.3390/w12112976

AMA Style

Shuman TC, Smiley PC Jr., Gillespie RB, Gonzalez JM. Influence of Physical and Chemical Characteristics of Sediment on Macroinvertebrate Communities in Agricultural Headwater Streams. Water. 2020; 12(11):2976. https://doi.org/10.3390/w12112976

Chicago/Turabian Style

Shuman, Tyler C.; Smiley, Peter C., Jr.; Gillespie, Robert B.; Gonzalez, Javier M. 2020. "Influence of Physical and Chemical Characteristics of Sediment on Macroinvertebrate Communities in Agricultural Headwater Streams" Water 12, no. 11: 2976. https://doi.org/10.3390/w12112976

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop