Summer diel diet and feeding periodicity of four species of cyprinids in the Salmon River, New York
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Abstract
The diel diet composition and feeding periodicity of Luxilus cornutus (common shiner), Exoglossum maxillingua (cutlip minnow), Semotilus corporalis (fallfish), and Notropis hudsonius (spottail shiner) were examined in the Salmon River, New York over a 24 h period during the summer. Chironomids were the major prey of common shiner (60.6%) and cutlip minnow (54.7%), whereas terrestrial invertebrates (30.0%) and amphipods (38.4%) were the primary food of fallfish and spottail shiner, respectively. Diet overlap was high between common shiner and cutlip minnow (Morisita's index = 0.88) and moderate between fallfish and common shiner (0.54) and fallfish and cutlip minnow (0.50). Diel temperal variation in diet composition was greatest (0.64) for spottail shiner. Three species exhibited diel variation in food consumption. Fallfish had a distinct feeding peak, whereas peak food consumption of common shiner and cutlip minnow occurred over a more extended period. Spottail shiner did not have a distinct feeding peak but food consumption was highest from 2400 to 0800 h. Each of the four species exhibited some degree of variation in their diel feeding ecology in regards to either diet composition or food consumption.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Summer diel diet and feeding periodicity of four species of cyprinids in the Salmon River, New York |
| Series title | American Midland Naturalist |
| DOI | 10.1674/amid-173-02-326-334.1 |
| Volume | 173 |
| Issue | 2 |
| Year Published | 2015 |
| Language | English |
| Publisher | University of Notre Dam |
| Publisher location | Notre Dam, Indiana |
| Contributing office(s) | Great Lakes Science Center |
| Description | 9 p. |
| First page | 326 |
| Last page | 334 |
| Country | United States |
| State | New York |
| Other Geospatial | Salmon River |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |