Year | Harmful Algal Blooms | |||||||
Freshwater | Seawater | |||||||
Daechung Lake, Daejeon City | Naro Island, Goheung County | |||||||
Onset Date | Duration (day) | Species | Heavy Rainfall Date/Precipitation (mm) | Onset Date | Duration (day) | Species | Heavy Rainfall Date/Precipitation (mm) | |
2001 | 9.1 | 35 | Microcystis | 7.21/61 | 8.14 | 41 | Cochlonidium | 7.5/119 |
2002 | 9.19 | 16 | Microcystis | 8.6/175 | 8.2 | 57 | Cochlonidium | 7.2/117 |
2003 | 9.9 | 39 | Microcystis | 7.9/155 | 8.13 | 62 | Cochlonidium | 7.3/59 |
2004 | 9.3 | 14 | Oscillatoria | 7.16/131 | 8.5 | 30 | Cochlonidium | 8.22/86 |
2005 | 8.2 | 67 | Microcystis/ Anabaena | 7.11/178 | 7.19 | 58 | Cochlonidium | 6.10/88 |
2006 | 8.4 | 62 | Anabaena | 7.12/49 | 8.6 | 36 | Cochlonidium | 7.10/151 |
2007 | 10.6 | 14 | Aphanizomenon/ Microcystis | 7.10/63 | 7.31 | 50 | Cochlonidium | 7.1/108 |
2008 | 7.25 | 15 | Anabaena | 6.18/81 | 7.30 | 62 | Cochlonidium | 6.1/70 |
2009 | 8.6 | 15 | Microcystis | 7.9/88 | 10.28 | 17 | Cochlonidium | 7.7/164 |
2010 | 9.2 | 43 | Aphanizomenon | 7.17/71 | 9.17 | 3 | Cochlonidium | 7.16/64 |
2011 | 8.12 | 57 | Oscillatoria/ Aphanizomenon | 7.8/85 | - | - | - | 5.11/92 |
2012 | 9.6 | 63 | Microcystis/ Aphanizomenon | 7.15/111 | 7.27 | 75 | Cochlonidium | 7.11/119 |
Average | 8.28 | 37 | Microcystis (7)/ Oscillatoria (2)/ Anabaena (3)/ Aphanizomenon (4) | 7.13/104 | 8.12 | 45 | Cochlonidium | 7.4/103 |