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Effects of aeration on water quality and channel catfish production
| Title: | Effects of aeration on water quality and channel catfish production. |
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| Name(s): |
Thomforde, H. W. Boyd, C. E. Harbor Branch Oceanographic Institute |
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| Type of Resource: | text | |
| Genre: | Article | |
| Date Issued: | 1991 | |
| Publisher: | Society of Israeli Aquaculture and Marine Biotechnology | |
| Place of Publication: | Israel | |
| Physical Form: | ||
| Extent: | 14 p. | |
| Language(s): | English | |
| Identifier: | FA00007214 (IID) | |
| Note(s): |
Channel catfish (Ictalurus punctatus) were stocked in earthen ponds at 11,000 and 14,000 fish/ha. Continual, nightly (from 00:00 to 06:00) and emergency aeration with vertical pump aerators were operated nightly (from 23:00 to 07:00) and compared to emergency aeration with vertical pumps. Fish were fed to satisfaction daily. Selected water quality variables were monitored.
Mean production in 1988 from the emergency aerated treatment (3,100 kg/ha) was significantly less (P < 0.05) than from continuous aeration (4,400 kg/ha) and nightly aeration (4,300 kg/ha) and nightly aeration (4,300 kg/ha). Feed efficiency (gain/feed input) under nightly aeration (0.82) was significantly better (P<0.05) than under emergency aeration (0.66). Production in 1989 was higher
(5,100•6,500 kg/ha) because greater feeding rates were attained, but there were no significant differences among treatments. In 1988, survival under nightly aeration (98%) was significantly better (P<0.05) than under emergency aeration (81%). Survival in 1989 was 92% to 98%, with no significant differences among treatments. Florida Atlantic University. Harbor Branch Oceanographic Institute contribution 860 This manuscript is an author version with the final publication available and may be cited as: Thomforde, H. W., & Boyd, C. E. (1991). Effects of aeration on water quality and channel catfish production. The Israeli Journal of Aquaculture - Bamidgeh, 43(1), 3-26. |
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| Subject(s): |
Channel catfish Water--Aeration Fish ponds Pond aquaculture Water quality |
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| Persistent Link to This Record: | http://purl.flvc.org/fau/fd/FA00007214 | |
| Host Institution: | FAU |
