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Effect of the hatchery larval sieving on the larval growth, scuticociliate occurrence, and ensuing spat growth of Patinopecten yessoensis  

Jo, Q-Tae (Aquaculture Management division, National Fisheries Research and Development Institute)
Kim, Su-Kyoung (Aquaculture Management division, National Fisheries Research and Development Institute)
Lee, Chae-Sung (Aquaculture Industry Division, East Sea Fisheries Research Institute)
Lee, Jin-Ho (Aquaculture Industry Division, East Sea Fisheries Research Institute)
Park, Mi-Seon (Aquaculture Industry Division, East Sea Fisheries Research Institute)
Moon, Tae-Suk (Aquaculture Industry Division, East Sea Fisheries Research Institute)
Publication Information
Journal of fish pathology / v.23, no.3, 2010 , pp. 303-311 More about this Journal
Abstract
Our previous finding summarizing that larval sieving process is inevitable but triggers the outbreak of scutica-like ciliates (SLCs) in the seed production of Patinopecten yessoensis urged further study to determine best suggestable sieving interval in an agreeable range of water quality. In the mass seed production of the scallop, SLC outbreak was closely related to the larval sieving in which larvae were drained on the basis of every 3-day (5T), 5-day (3T), 7-day (2T), or 9-day (1T) from culture tanks onto a mesh screen and placed back into new water in cleaned tanks. The larval performance of growth and survival was clearly dependent on the sieving intervals. It was in order of 3T, 5T, 2T, and 1T for both of growth and survival and in reverse order for SLC infection frequency, confirming that larval sieving is necessary but damageable if it overwhelms the larval resistance. Interestingly, the larval damages by the sieving persisted to their ensuing spat life in terms of nursery growth, survival, and abnormality.
Keywords
Larval sieving; Larval growth; Scuticociliate; Patinopecten yessoensis;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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