2022 Early Hearing Detection & Intervention Virtual Conference
March 13 - 15, 2022
5/26/2021 | 8:30 AM - 10:30 AM | THE EFFECT OF TWO-STAGE DITCH CHANNEL MORPHOLOGY ON BENTHIC COMMUNITY STRUCTURE WITHIN THE BLANCHARD RIVER WATERSHED | Virtual Platform
THE EFFECT OF TWO-STAGE DITCH CHANNEL MORPHOLOGY ON BENTHIC COMMUNITY STRUCTURE WITHIN THE BLANCHARD RIVER WATERSHED
Two primary threats to northwest Ohio watersheds are hydrologic variation and nutrient enrichment. Two-stage ditches are one attempt to mitigate these threats and are designed to reduce discharge and sediment loading into primary watershed tributaries. Previous studies have documented that ditches can also serve as habitat for organisms and can make substantial contributions to diversity within watersheds, but the effect of two-stage ditch morphology on benthic communities is not well known and, in at least one study, appears to not be important. Thus, the focus of this investigation was to determine if benthic community composition in a two-stage ditch differed from traditional open ditch habitats (Blanchard River Watershed, Ohio). Multivariate analysis indicated that two stage ditch benthic communities were significantly different from that of the traditional, open ditch sites. Two-stage ditch sites were characterized by lower turbidity, lower water temperature and a detritivore-dominant community, while open ditch sites were dominated by macroalgae and herbivorous snails. Two-stage ditch sites had a closed canopy due to increased plant biomass within the ditch, leading to less light availability and possibly contributing to lower water temperatures when compared to open ditch sites.
- Monitoring
- Food webs
- Stream
Presentation:
This presentation has not yet been uploaded.
Handouts:
Handout is not Available
Transcripts:
CART transcripts are NOT YET available, but will be posted shortly after the conference
Presenters/Authors
Robert Verb
(), Ohio Northern University, r-verb@onu.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Colin Light
(), Ohio Northern University, c-light@onu.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Connor Ney
(), Ohio Northern University, Department of Biological & Allied Health Sciences, c-ney@onu.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Lauren Govekar
(), Ohio Northern University, l-govekar@onu.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Janet Deardorff
(), Ohio Northern University, j-deardorff@onu.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Chad Carroll
(), Hancock Soil & Water Conservation District, c-carroll@onu.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Leslie Riley
(), Ohio Northern University, l-riley.1@onu.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -