Food Habits of Dicamptodon Ensatus and Associated Fish Species of Maratta Creek, Washington

Three cold-blooded vertebrates, Dicamptodon ensatus, Cottus tenuis, and Salmo gairdneri were investigated as to food habits for a period of one year. The existence of competition between these animals for food was determined by means of stomach analysis. The results were compared relative to each vertebrate and the bottom fauna procurred from the stream. It was shown that the food habits of D. ensatus and S. gairdneri were diverse enough to warrant partial exclusion on the basis of food. C. tenuis demonstrated selectivity and was shown to be under competitive stress from the other two species.

Name thesis:degree_name

Master of Science (MS)

Discipline thesis:degree_discipline

Biology

Year

1969

Author dc:creator

• Antonelli, Authur L.

Contributors dc:contributor

• Stamford D. Smith
• Curt A. Wiberg
• Philip C. Dumas

• Science
• Biology
• Freshwater ecology
• Systems Biology
• Terrestrial and Aquatic Ecology

Language dc:language

English

Repository record dc:identifier

https://digitalcommons.cwu.edu/etd/1225

OAI identifier oai:identifier

oai:digitalcommons.cwu.edu:etd-2239