Age and Growth of Shovelnose Sturgeon, Scaphirhynchus platorynchus (Rafinesque), in the Mississippi River

Authors

Don R. Helms, State Conservation CommissionFollow

Document Type

Research

Keywords

Shovelnose Sturgeon, Age and Growth, Mississippi River

Abstract

Anterior pectoral fin rays and body measurements were collected from 110 shovelnose sturgeon captured from October 29 through November 5, 1971, in pool 13 of the Mississippi River. Fork length ranged from 7.4 to 23.7 inches and weight ranged from.06 to 2.02 lbs. The length-weight relationship was estimated as log₁₀W = -4.292 + 3.307 log₁₀FL with standard deviation for the regression coefficients ±.046 and ±.038, respectively. Condition factors (C) averaged 11.6 with a range from 9 to 17. Mean lengths at time of capture were 8.9, 13.7, 18.9 and 22.0 inches for age groups 0 through III.

Publication Date

June 1974

Journal Title

Proceedings of the Iowa Academy of Science

Volume

81

Issue

2

First Page

73

Last Page

75

Copyright

©1974 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

Recommended Citation

Helms, Don R. (1974) "Age and Growth of Shovelnose Sturgeon, Scaphirhynchus platorynchus (Rafinesque), in the Mississippi River," Proceedings of the Iowa Academy of Science, 81(2), 73-75.
Available at: https://scholarworks.uni.edu/pias/vol81/iss2/10