유령멍게 (Ciona intestinalis: Ascidiacea, Phlebobranchia, Cionidae)의 초기 성장에 미치는 온도의 영향
The Effect of temperature on early growth of Ciona intestinalis (Ascidiacea, Phlebobranchia, Cionidae)
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초록
A native species to the European ocean, the tunicate Ciona intestinalis now appears worldwide, from sub-Arctic to tropical regions. C. intestinalis generally occurs as an opportunistic fouling organism on artificial substrates in harbors or aquaculture. This study focused on estimating the early growth pattern of C. intestinalis under various temperature conditions. Adults were collected from the Guryungpo harbour in November 2016, and their artificially inseminated eggs were used for the study. The growth of the C. intestinalis was investigated at 8 constant temperatures, ranging from 12℃ to 26℃, at 30 psu. Results indicate that the growth of C. intestinalis increased with increasing temperature. The growth was sluggish at 12℃, and decreased at 26℃. The optimal temperature for growth of C. intestinalis was therefore estimated to be between 20℃ and 24℃.
Abstract
A native species to the European ocean, the tunicate Ciona intestinalis now appears worldwide, from sub-Arctic to tropical regions. C. intestinalis generally occurs as an opportunistic fouling organism on artificial substrates in harbors or aquaculture. This study focused on estimating the early growth pattern of C. intestinalis under various temperature conditions. Adults were collected from the Guryungpo harbour in November 2016, and their artificially inseminated eggs were used for the study. The growth of the C. intestinalis was investigated at 8 constant temperatures, ranging from 12℃ to 26℃, at 30 psu. Results indicate that the growth of C. intestinalis increased with increasing temperature. The growth was sluggish at 12℃, and decreased at 26℃. The optimal temperature for growth of C. intestinalis was therefore estimated to be between 20℃ and 24℃.
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