Diet of burbot and implications for sampling

Intermountain Journal of Sciences
By: , and 



Burbot (Lota lota) are an apex piscivore that were illegally introduced to the Green River drainage, Wyoming, raising concerns for the conservation and management of fishes throughout the basin.  However, relatively little is known about the diet of non-native burbot.  The objectives of this research were to characterize diet composition of burbot and identify differences in diet composition as a function of sampling gear.  Diet composition was characterized using frequency of occurrence, percent by number, and percent by weight to identify the importance of each prey type to burbot.  Diet composition was compared across gears to identify the relationship between gear and diet.  Fishes were present in the stomach contents of nearly all burbot sampled and composed 62–100 percent of the stomach contents of burbot greater than 300 mm.  Prey diversity was greatest in diets of burbot sampled with small-mesh hoop nets.  Results from the current study provide important information on the diet of non-native burbot and highlight the potential influence of gear on diet studies.

Study Area

Publication type Article
Publication Subtype Journal Article
Title Diet of burbot and implications for sampling
Series title Intermountain Journal of Sciences
Volume 24
Issue 1-2
Year Published 2018
Language English
Publisher Intermountain Journal of Science
Contributing office(s) Coop Res Unit Seattle
Description 13 p.
First page 1
Last page 13
Country United States
State Wyoming
Other Geospatial Green River drainage
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