Influence of Riparian Canopy on Macroinvertebrate Composition and Food Habits of Juvenile Salmonids in Several Oregon Streams - Hardcover

William R. Meehan

Hardcover

ISBN 10: 0331365316 ISBN 13: 9780331365313

Publisher: Forgotten Books, 2024

Synopsis

This book examines the eating habits of young salmon and trout fish in relation to their macroinvertebrate prey in eight Oregon streams. The author compares the composition of macroinvertebrates present in the stream environment to those found in the stomach contents of fish collected from canopied and non-canopied stream sections over three years. The results uncover a significant difference between the profile of macroinvertebrates in the environment and those taken as food items by juvenile salmonids. The percentage of Diptera and Ephemeroptera (flies and mayflies) found in the study was high among both macroinvertebrate samples and the fish stomach contents, suggesting their importance as a food source. Despite the significant differences, there was no major concern regarding the presence or absence of riparian canopy, indicating that non-canopied stream sections are not always necessary to provide adequate preferred food items for young fish.

Edition details

• Publisher: Forgotten Books
• Publication date: 2024
• Language: English
• ISBN 10: 0331365316
• ISBN 13: 9780331365313
• Binding: Hardcover
• Number of pages: 32