Seasonal drift and feeding periodicity during summer of the amphipod, Gammarus psuedolimnaeus
Journal of Freshwater Ecology
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Abstract
Downstream drift of aquatic invertebrates is an important ecological process that varies temporally. Seasonal patterns of diel drift and diel feeding periodicity during summer of the amphipod Gammarus pseudolimnaeus were examined in a small stream in central New York. Seasonal trends in drift were similar with peak drift occurring from 2000 to 0400 h. Very little drift occurred during the day. Feeding intensity of G. pseudolimnaeus was greatest from 2000 to 0400 h and was significantly greater than at 0400 to 0800 h and 0800 to 1200 h. Previous research on feeding periodicity of this species found no evidence of periods of increased food consumption. Conflicting results between this study and earlier studies may be due to sampling drifting versus non-drifting amphipods.
Suggested Citation
Johnson, J.H., 2014, Seasonal drift and feeding periodicity during summer of the amphipod, Gammarus psuedolimnaeus: Journal of Freshwater Ecology, v. 29, no. 2, https://doi.org/10.1080/02705060.2014.880386.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Seasonal drift and feeding periodicity during summer of the amphipod, Gammarus psuedolimnaeus |
| Series title | Journal of Freshwater Ecology |
| DOI | 10.1080/02705060.2014.880386 |
| Volume | 29 |
| Issue | 2 |
| Publication Date | February 06, 2014 |
| Year Published | 2014 |
| Language | English |
| Publisher | Taylor & Francis |
| Contributing office(s) | Great Lakes Science Center |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Journal of Freshwater Ecology |
| Country | United States |
| State | New York |
| County | Cortland County |
| Other Geospatial | Beaver Brook |