[NOTE]유해성 적조생물, Cochlodinium polykrikoides Margalef (Dinophyceae) 성장에 영향을 미치는 광량과 파장 = Effects of Light Quantity and Quality on the Growth of the HarmfulDinoflagellate, Cochlodinium polykrikoides Margalef (Dinophyceae)

다국어 초록 (Multilingual Abstract)

The effects of light quality and irradiance on the growth of Cochlodinium polykrikoides were investigated in the
laboratory. At 25°C and 30 psu the irradiance-growth curve was described as μ = 0.34 (I-9.76)/(I+12.5), (r=0.98). This
suggests half-saturation photon flux density (PFD) (Ks) of 32.0 μmol photons m–2 s–1, and a compensation PFD (Ic) of
9.76 μmol photons m–2 s–1. Because the Ic equates to a depth of ca. 15.4 m, these responses suggest that irradiance at
the depth around and below the thermocline in Yeosuhae Bay would provide favorable conditions for C.
polykrikoides. Photoinhibition did not occur at 300 μmol photons m–2 s–1, which was the maximum irradiance used in
this study. Blue (450 nm), yellow (590 nm) and red (650 nm) light had different effects on the growth of C.
polykrikoides: it grew well under blue light, but not under yellow light. This implies that C. polykrikoides is more likely
to cause an outbreak of red tide in the open sea where blue-green wavelengths predominate, rather than in enclosed
water bodies where suspended particles absorb most of the blue wavelengths, and yellow-orange wavelengths
predominate.