Lethal thermal maxima for age-0 pallid and shovelnose sturgeon: Implications for shallow water habitat restoration

River Research and Applications
By: , and 

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Abstract

We evaluated temperature tolerance in age-0 pallid and shovelnose sturgeon (Scaphirhynchus albus and Scaphirhynchus platorynchus), two species that occur sympatrically in the Missouri and Mississippi Rivers. Fish (0.04–18 g) were acclimated to water temperatures of 13, 18 or 24 °C to quantify temperatures associated with lethal thermal maxima (LTM). The results show that no difference in thermal tolerance existed between the two sturgeon species, but that LTM was significantly related to body mass and acclimation temperature. Multiple linear regression analysis was used to estimate LTM, and outputs from the model were compared with water temperatures measured in the shallow water habitat (SWH) of the Missouri River. Observed SWH temperatures were not found to yield LTM conditions. The model developed here is to serve as a general guideline in the development of future SWH.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Lethal thermal maxima for age-0 pallid and shovelnose sturgeon: Implications for shallow water habitat restoration
Series title River Research and Applications
DOI 10.1002/rra.3022
Volume 32
Issue 9
Year Published 2016
Language English
Publisher Wiley
Contributing office(s) Coop Res Unit Leetown
Description 7 p.
First page 1872
Last page 1878
Country United States
Other Geospatial Mississippi river, Missouri river