2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
5/20/2019 | 2:00 PM - 2:15 PM | FISH AS DRIVERS OF ZOOPLANKTON SPATIAL VARIATION ACROSS MULTIPLE SPATIAL SCALES | 253 AB
FISH AS DRIVERS OF ZOOPLANKTON SPATIAL VARIATION ACROSS MULTIPLE SPATIAL SCALES
Zooplankton are a critical component in aquatic food webs because they are the primary link between basal resources and higher trophic levels. Numerous factors have been identified that can potentially influence the spatial distribution of zooplankton including fish, which alter the distribution of zooplankton by both consumption and release of kairomones (also known as infochemicals). Here, we summarize several projects describing zooplankton spatial distribution across multiple scales and what implications these mechanisms have for structuring aquatic food webs. We focus on three scales: 1) fine-scale interactions among zooplankton, macrophytes, and fish with differing diets, 2) regional-scale influences of fish on both near and offshore zooplankton, and 3) system scale changes in density from upper, riverine areas to lower, lacustrine habitats above dams in reservoirs and from lakes to streams below lakes. Our observations suggest that zooplankton spatial distribution is complex and that fish interact with several factors in determining the zooplankton distribution. Our observations also suggest that the distribution of zooplankton may have important implications for food web structure and function.
- Zooplankton
- Fish
- Distribution
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Presenters/Authors
Thomas Detmer
(), University of Illinois, tdetmer@illinois.edu;
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Joseph Parkos
(), University of Illinois, parkos@illinois.edu;
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David Wahl
(), University of Illinois, d-wahl@illinois.edu;
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