Effects of nonlethal sea lamprey attack on the blood chemistry of lake trout

Journal of Aquatic Animal Health
By:  and 

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Abstract

A laboratory study examined changes in the blood chemistry of field-caught and hatchery-reared lake trout Salvelinus namaycush subjected to a nonlethal attack by sea lampreys Petromyzon marinus. We measured glucose, total protein, amylase, alkaline phosphatase (ALKP), alanine aminotransferase (ALT), aspartate aminotransferase (AST), creatine kinase, calcium, magnesium, triglycerides, sodium, and potassium with a Kodak Ektachem DT60 Analyzer, Ektachem DTSC Module, and the DTE Module. Mean levels of total protein, AST, ALKP, hematocrit, calcium, magnesium, and sodium decreased significantly (P ≤ 0.05), and mean levels of ALT and potassium increased significantly (P ≤ 0.05) after sea lamprey feeding. Lake trout condition (K) and hematocrit levels also decreased significantly (P ≤ 0.05) after the sea lamprey attack. Frequency distributions of eight lake trout blood chemistry variables and the hematocrit were significantly different before and after a sea lamprey attack. A second study that used hatchery lake trout broodstock measured changes in hematocrit before and after a sea lamprey attack.

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Publication type Article
Publication Subtype Journal Article
Title Effects of nonlethal sea lamprey attack on the blood chemistry of lake trout
Series title Journal of Aquatic Animal Health
DOI 10.1577/1548-8667(2001)013<0051:EONSLA>2.0.CO;2
Volume 13
Issue 1
Year Published 2001
Language English
Publisher American Fisheries Society
Contributing office(s) Great Lakes Science Center
Description 4 p.
First page 51
Last page 55
Country United States
State Michigan
City Traverse City, Rogers City
Other Geospatial Grand Traverse Bay, Lake Huron, Lake Michigan
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