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131.
Ocean Science Journal - Anatomical, histological, and histochemical investigations on the olfactory organ of the great blue spotted mudskipper Boleophthalmus pectinirostris were conducted using a... 相似文献
132.
The effect of swell on the drag coefficient, C
D, observed at the Hiratsuka Tower Station, presented by Suzuki et al. (1998, 2002), has been investigated. C
D increases sharply with the windsea Reynolds number, R
B, when there is a counter swell against the windsea direction, and only gradually when the swell comes from a mixture of directions.
In cases where 2-D wave spectra were unavailable (1998, and others), swells showed a scattering effect compared with the pure
windsea case on the C
D-R
B Diagram. R
B is a useful parameter for investigating the effect of swells and further systematic accumulation of appropriate data is needed. 相似文献
133.
So Yun Park Eun Seok Choi Jinik Hwang Donggiun Kim Tae Kwon Ryu Taek-Kyun Lee 《Ocean Science Journal》2009,44(4):199-204
Prorocentrum minimum is a common bloomforming photosynthetic dinoflagellate found along the southern coast of Korea. To investigate the adaptive responses of P. minimum to high light stress, we measured growth rate, and generation of reactive oxidative species (ROS), superoxide dismutase (SOD), catalase (CAT), and malondialdehyde (MDA) in cultures exposed to normal (NL) and high light levels (HL). The results showed that HL (800 μmol m?2 s?1) inhibited growth of P. minimum, with maximal inhibition after 7–9 days. HL also increased the amount of ROS and MDA, suggesting that HL stress leads to oxidative damage and lipid peroxidation in this species. Under HL, we first detected superoxide on day 4 and H2O2 on day 5. We also detected SOD activity on day 5 and CAT activity on day 6. The level of lipid peroxidation, an indicator of cell death, was high on day 8. Addition of diphenyleneiodonium (DPI), an NAD(P)H inhibitor, decreased the levels of superoxide generation and lipid peroxidation. Our results indicate that the production of ROS which results from HL stress in P. minimum also induces antioxidative enzymes that counteract oxidative damage and allow P. minimum to survive. 相似文献