쇠미역사촌과 미역 포자체의 배양 및 야외 개체군의 생장 비교 (Comparison on the Growth of Costaria costata and Undaria pinnatifida Sporophytes in Culture and Their Field Populations)

서지정보

· 발행기관 : 한국수산과학회
· 수록지 정보 : 한국수산과학회지 / 44권 / 1호 / 71 ~ 77페이지
· 저자명 : 박향하, 허진석, 김보연, 송지나, 임거영, 김하니, 최한길

초록

The effects of temperature, light, and salinity on the growth of Costaria costata and Undaria pinnatifida juveniles were examined in laboratory cultures. In a cultivation farm, the monthly yield and density were also investigated between December and April for C. costata and between December and March in 2007 and 2008 for U. pinnatifida. The relative growth rates (RGRs) were greater at 20~60 μmol photons m^(-2)s^(-1) than at low (0~10 μmol photons m^(-2)s^(-1)) and high (100~180 μmol photons m^(-2)s^(-1)) irradiance levels. The optimal growth conditions for the two species were 17℃, 35 psu, 60 μmol photons m^(-2)s^(-1), and a daylength of 12 h, indicating that C. costata and U. pinnatifida have very similar growth responses to temperature, light, and salinity. However, the growth responses of the two species to various environmental factors were different; C. costata grew faster than U. pinnatifida but the latter species grew well at low salinity. The monthly yield of C. costata and U. pinnatifida increased steadily over the study period, and it was maximal in March for both species, but the yield of U. pinnatifida was greater than that of C. costata.

영어초록

The effects of temperature, light, and salinity on the growth of Costaria costata and Undaria pinnatifida juveniles were examined in laboratory cultures. In a cultivation farm, the monthly yield and density were also investigated between December and April for C. costata and between December and March in 2007 and 2008 for U. pinnatifida. The relative growth rates (RGRs) were greater at 20~60 μmol photons m^(-2)s^(-1) than at low (0~10 μmol photons m^(-2)s^(-1)) and high (100~180 μmol photons m^(-2)s^(-1)) irradiance levels. The optimal growth conditions for the two species were 17℃, 35 psu, 60 μmol photons m^(-2)s^(-1), and a daylength of 12 h, indicating that C. costata and U. pinnatifida have very similar growth responses to temperature, light, and salinity. However, the growth responses of the two species to various environmental factors were different; C. costata grew faster than U. pinnatifida but the latter species grew well at low salinity. The monthly yield of C. costata and U. pinnatifida increased steadily over the study period, and it was maximal in March for both species, but the yield of U. pinnatifida was greater than that of C. costata.

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