Influence of temperature and stocking density during rearing on larval blue bream, Ballerus ballerus (L.)
Author:
Piech Przemysław1ORCID, Kujawa Roman1ORCID, Nowosad Joanna2ORCID, Kucharczyk Dariusz3ORCID, Targońska Katarzyna3ORCID, Szmyt Mariusz1ORCID
Affiliation:
1. 1 Department of Ichthyology and Aquaculture, Faculty of Animal Bioengineering , University of Warmia and Mazury , Olsztyn , Poland 2. 2 Department of Ichthyology, Hydrobiology and Aquatic Ecology , National Inland Fisheries Research Institute Olsztyn , Poland 3. 3 Department of Research and Development , Chemprof, Gutkowo, 11-041 Olsztyn , Poland
Abstract
Abstract
This study determined the effects of stocking density and water temperature on the rearing parameters and survival of larval blue bream under controlled conditions. Two experimental larval blue bream rearing variants were conducted. In the first experiment, larval blue bream were reared at different stocking densities of 20, 40, 80, and 120 indiv. dm−3 at 25°C. In the second experiment, larvae were reared in water at 15, 20, 25, and 30°C at a stocking density of 40 individuals per dm3. The larval blue bream achieved the highest growth rate at the lowest density tested (20 indiv. dm−3; 69.4 mg at an average length of 26.8 mm) and at the highest temperature tested (30°C; 80.1 mg at an average length of 28.4 mm). The final larval survival rate during rearing at different temperatures ranged from 95.2 to 97.6%, while the final larval survival rate at different stocking densities ranged from 91.4 to 94.6%. The lowest growth and survival rates were recorded for larvae reared in water at 15°C and at a density of 120 indiv. dm−3.
Publisher
Walter de Gruyter GmbH
Reference64 articles.
1. Atse, B.C., Konan, K.J., Alla, Y.L., Pangini, K. (2009). Effect of rearing density and feeding regimes on growth and survival of African catfish, Heterobranchus longifilis (Valenceinnes, 1840) Larvae in a closed recirculating aquaculture system. Journal of Applied Aquaculture, 21, 183–195. 2. Brown, M. E. (1957). Experimental studies on growth. In: The physiology of fishes. (Ed.) M.E. Brown, Academic Press, New York, 361–400. 3. Cejko, B. I., Kowalski, R. K., Kucharczyk, D., Targońska, K., Krejszeff, S., Żarski, D., Glogowski, J. (2010). Influence of the length of time after hormonal stimulation on selected parameters of milt of ide Leuciscus idus L. Aquaculture Research, 41, 804–813. 4. Cejko, B. I., Targońska, K., Kowalski, R. K., Żarski, D., Sarosiek, B., Kucharczyk, D., Glogowski, J. (2012). The effectiveness of hormonal preparations (Ovopel, Ovaprim, LHRH a, hCG and CPE) in stimulating spermiation in dace Leuciscus leuciscus (L.). Journal of Applied Ichthyology, 28, 873–877. 5. Duncan, D. B. (1955). Multiple range and multiple F-test. Biometrics, 11, 1–42.
|
|