Seasonal Variations in Water Temperature and Salinity and Phytoplankton Abundance in Terms of Oyster and Squirt Fisheries in the East Sea |
|
Abstract |
Water temperature, salinity, transparency and phytoplankton in the eastern Korean coastal waters in May,August and October during the period of 2007-2010 were determinded. 12 offshore sites; Gangneung, Donghae,Samcheok, Imwon, Jubyun, Hupo, Chuksan, Ganggu, Wolpo, Pohang, Guryongpo and Gampo. Water temperature in the sea surface varied from 14℃ to 16℃, 18℃ to 25℃, 22℃ to 23℃ in May, August and October,but bottom water temperature had a significant fluctuation at different regions and each year. Unlike water temperature, salinity did not show significantly fluctuations. The temporal variations of the transparency did not show a great fluctuation. Chaetoceros spp., Leptocylindrus danicus and Pseudonitzschia pungens were most abundance phytoplankton species in the eastern coastal waters. |
Key Words:
East Sea, fluctuation, water temperature, bottom water, phytoplankton |
|