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.
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 |
| 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 |
| Google Analytic Metrics | Metrics page |