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http://dx.doi.org/10.5322/JESI.2018.27.9.797

An Experimental Device for Measuring Egg Density and Adaptation under Laboratory Conditions  

Park, Jong Won (Department of Marine Bioscience, Gangneung-Wonju National University)
Jung, Hae Kun (Department of Marine Bioscience, Gangneung-Wonju National University)
Park, Joo Myun (Department of Marine Bioscience, Gangneung-Wonju National University)
Park, Heum-Gi (Department of Marine Bioscience, Gangneung-Wonju National University)
Lee, Chung Il (Department of Marine Bioscience, Gangneung-Wonju National University)
Publication Information
Journal of Environmental Science International / v.27, no.9, 2018 , pp. 797-802 More about this Journal
Abstract
Information about the density of fish eggs is important to understand the vertical distribution of eggs and survival in early stage, in particular change in egg density is one of major issue in fisheries. This paper describes a practical application of an experimental system for measurement of the fish egg density under laboratory conditions. The device can control the temperature range in each water column, and make different densities at each layer. The density of olive flounder (Paralichthys olivaceus) eggs have ranged from 1,018.49 to $1,020.93kg/m^3$ and were aggregated around the density of $1,020kg/m^3$. The results show that the device is applicable for measuring the fish egg density under laboratory conditions.
Keywords
Water temperature; Density float; Stratification; Olive flounder;
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