Digestive physiology comparisons of aquatic invertebrates in the Upper Mississippi River Basin

Journal of Freshwater Ecology
By: , and 

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Abstract

Limited information is available on the composition of digestive enzymes present in unionid mussels and the zebra mussel, Dreissena polymorpha. Available information is nearly exclusive to species used for culture purposes. A commercially available enzyme assay kit was used to examine the effect of habitat within an ecosystem, season, and species on the activities of several digestive enzymes. We used Amblema plicata to represent native unionids, D. polymorpha, and also Hydropsyche orris as an outgroup to compare differences between mussels and other macroinvertebrates. The data indicated that neither location nor time affect the activities of the digestive enzymes tested; species was the only factor to affect the activity. Differences were found mostly between four enzymes: naphthol-AS-BI-phosphohydrolase, acid phosphatase, alkaline phosphatase, and β-galactosidase.

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Digestive physiology comparisons of aquatic invertebrates in the Upper Mississippi River Basin
Series title Journal of Freshwater Ecology
DOI 10.1080/02705060.2015.1132485
Volume 31
Issue 3
Year Published 2016
Language English
Publisher Taylor and Francis
Contributing office(s) Upper Midwest Environmental Sciences Center
Description 12 p.
First page 303
Last page 314
Country United States
Other Geospatial Upper Mississippi River Basin
Online Only (Y/N) N
Additional Online Files (Y/N) N