Genetic Studies of Scaphirynchus spp
Abstract
The study was initially an analysis of morphologically identified pallid sturgeon, shovelnose sturgeon, and hybrid sturgeon using blood DNA. A total of 228 specimens were analyzed from different parts of the Mississippi River Basin. Prior to contract completion, another item was added to the contract to analyze one morphologic ally identified individual of Alabama sturgeon captured from the Alabama River. Since the specimen died without a blood sample being taken, a tissue sample was used to obtain DNA. Contracted items were as follows: 1. Determine degree of genetic divergence between pallid and shovelnose sturgeon and describe taxonomic significance of this. 2. Identify genetically meaningful management units (stocks) within the range of the pallid for designing reintroduction efforts. 3. Determine if hybridization is occurring and whether it consists solely of El hybrids or if introgression is occurring. 4. Identify genetically meaningful management units (stocks) within the range of the shovelnose sturgeon. 5. Analyze tissue samples from one Alabama sturgeon, including developing the technique for extracting DNA material from tissue (instead of blood) samples, comparing this DNA with that already obtained from shovelnose and pallid sturgeon.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1994
- Accession Number
- ADA382699