Do Daphnia use metalimnetic organic matter in a north temperate lake? An analysis of vertical migration
Inland Waters
Links
- The Publications Warehouse does not have links to digital versions of this publication at this time
- Download citation as: RIS | Dublin Core
Abstract
Diel vertical migration of zooplankton is influenced by a variety of factors including predation, food, and temperature. Research has recently shifted from a focus on factors influencing migration to how migration affects nutrient cycling and habitat coupling. Here we evaluate the potential for Daphnia migrations to incorporate metalimnetic productivity in a well-studied northern Wisconsin lake. We use prior studies conducted between 1985 and 1990 and current diel migration data (2008) to compare day and night Daphnia vertical distributions with the depth of the metalimnion (between the thermocline and 1% light depth). Daphnia migrate from a daytime mean residence depth of between about 1.7 and 2.5 m to a nighttime mean residence depth of between 0 and 2.0 m. These migrations are consistent between the prior period and current measurements. Daytime residence depths of Daphnia are rarely deep enough to reach the metalimnion; hence, metalimnetic primary production is unlikely to be an important resource for Daphnia in this system.
Suggested Citation
Brosseau, C.J., Cline, T.J., Cole, J.J., Hodgson, J.R., Pace, M., and Weidel, B., 2012, Do Daphnia use metalimnetic organic matter in a north temperate lake? An analysis of vertical migration: Inland Waters, v. 2, no. 4, p. 193-198.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Do Daphnia use metalimnetic organic matter in a north temperate lake? An analysis of vertical migration |
| Series title | Inland Waters |
| Volume | 2 |
| Issue | 4 |
| Year Published | 2012 |
| Language | English |
| Publisher | International Society of Limnology |
| Contributing office(s) | Great Lakes Science Center |
| Description | 6 p. |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Inland Waters |
| First page | 193 |
| Last page | 198 |