Theses and Dissertations


Title: Effects of artificial aeration on the development of bottom fauna in catfish culture ponds

Name: Armbrester, Jr William Brandon

Degree: MS

Chair: Dr. John S. Dendy

Resides: FAA Library

University: Auburn

Location: Auburn, Alabama

Date: 1971

Pages: 59

Keywords: Aeration,Bottom Fauna,Catfish Ponds.

Abstract:

Four 0.1-acre ponds and three larger ponds (5.2, 22, and 26 acres) were studied to determine how aeration with compressed air affects the productivity, distribution, and diversity of bottom fauna in catfish culture ponds. Two 0.1-acre ponds received no aeration and served as controls. One 0.1-acre pond received 10 cubic feet of compressed air per minute: another 0.1-acre pond received 15 cubic feet of compressed air per minute. The 22-acre pond received 36 cubic feet of air per acre per minute. The remaining two ponds, 5.2 and 26 acres, received no aeration. All ponds, except the 26-acre pond, contained catfish under intensive cultivation. Temperature and dissolved oxygen were monitored. Samples of benthos were taken with multiple-plate samplers and emergence traps. Results indicated that aeration tends to increase benthic productivity and that with high rates of supplemental feeding aeration greatly increases the potential for benthic productivity. Chaoborus punctipennis, which was dominant in the large non-aerated ponds, was rarely collected in the aerated 22-acre pond. Diversity of species was greater in ponds that received supplemental feed than in a pond that received fertilizer treatment only. There was little difference in diversity between aerated and non-aerated catfish ponds that received supplemental feed.

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