Age-0 Shovelnose Sturgeon prey consumption in the Lower Missouri River
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Abstract
A lack of nutritious food during the first year of life is a hypothesized factor that may limit survival of endangered pallid sturgeonScaphirhynchus albus in the lower Missouri River (LMOR). Unfortunately, information for age-0 pallid sturgeon diets remains limited, but diet analyses for age-0 Scaphirhynchus spp. (sturgeon hereafter) have occurred. Little information, however, exists on age-0 sturgeon diets in the LMOR; thus, our primary objective was to document age-0 sturgeon diets in this system. We examined guts contents from 30 individuals, which were genetically identified as shovelnose sturgeon Scaphirhynchus platorynchus, and three stomachs were empty. The remaining age-0 shovelnose sturgeon consumed chironomid larvae almost exclusively (>98% of prey items consumed). Our results were similar to studies conducted in other systems, and it appears unlikely that a lack of nutritious food was a major factor affecting the individuals captured during this study. This effort provides important information to help guide ongoing adaptive management efforts in the LMOR.
Suggested Citation
Gosch, N., Miller, M., Gemeinhardt, T., Starks, T.A., Civiello, A.P., Long, J.M., Bonneau, J., 2016, Age-0 Shovelnose Sturgeon prey consumption in the Lower Missouri River: River Research and Applications, v. 32, no. 8, p. 1819-1823, https://doi.org/10.1002/rra.3003.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Age-0 Shovelnose Sturgeon prey consumption in the Lower Missouri River |
| Series title | River Research and Applications |
| DOI | 10.1002/rra.3003 |
| Volume | 32 |
| Issue | 8 |
| Publication Date | February 12, 2016 |
| Year Published | 2016 |
| Language | English |
| Publisher | Wiley Online |
| Contributing office(s) | Coop Res Unit Atlanta |
| Description | 5 p. |
| First page | 1819 |
| Last page | 1823 |
| Country | United States |
| State | Missouri |
| Other Geospatial | Missouri River |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |