Interannual oscillations of cyanobacterial blooms in the Baltic Sea
Mati Kahru 1*, Ragnar Elmgren 2, Emanuele di Lorenzo 3 and Oleg Savchuk 4
1Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA 92093-0218, USA
2Department of Ecology, Environment and Plant Sciences, Stockholm University, Stockholm, Sweden
3School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA 30332, USA
4Baltic Nest Institute, Stockholm University, Stockholm, Sweden
Supplemental Table 2. Time series of FCA and its first difference in the Northern Baltic Proper (NBP), Western Gotland basin (WGB) and Eastern Gotland Basin (EGB). The first difference values (NBP', WGB' and EGB') are derived by subtracting the last year's FCA value. For locations see Fig. 2.
| Year | NBP | WGB | EGB | NBP' | WGB' | EGB' |
| 1979 | 16.39 | 12.67 | 12.47 | |||
| 1980 | 10.18 | 12.38 | 3.29 | -6.22 | -0.29 | -9.18 |
| 1981 | 15.80 | 21.22 | 24.44 | 5.63 | 8.84 | 21.15 |
| 1982 | 1.75 | 12.68 | 11.69 | -14.05 | -8.54 | -12.76 |
| 1983 | 18.90 | 17.86 | 20.78 | 17.15 | 5.18 | 9.09 |
| 1984 | 16.78 | 13.80 | 6.95 | -2.12 | -4.06 | -13.83 |
| 1985 | 0.06 | 2.38 | 1.46 | -16.72 | -11.42 | -5.50 |
| 1986 | 4.92 | 7.73 | 2.69 | 4.87 | 5.35 | 1.24 |
| 1987 | 0.85 | 0.00 | 0.33 | -4.07 | -7.73 | -2.36 |
| 1988 | 5.08 | 2.52 | 3.33 | 4.22 | 2.52 | 3.00 |
| 1989 | 9.74 | 5.10 | 2.83 | 4.66 | 2.58 | -0.50 |
| 1990 | 5.29 | 4.92 | 1.60 | -4.45 | -0.18 | -1.24 |
| 1991 | 17.61 | 13.06 | 19.61 | 12.32 | 8.14 | 18.01 |
| 1992 | 29.25 | 8.61 | 17.90 | 11.64 | -4.45 | -1.71 |
| 1993 | 9.17 | 21.46 | 6.73 | -20.08 | 12.85 | -11.17 |
| 1994 | 21.44 | 22.07 | 24.44 | 12.27 | 0.61 | 17.71 |
| 1995 | 3.94 | 3.64 | 5.14 | -17.50 | -18.43 | -19.30 |
| 1996 | 4.66 | 2.09 | 3.09 | 0.72 | -1.55 | -2.05 |
| 1997 | 31.56 | 24.97 | 11.16 | 26.90 | 22.87 | 8.07 |
| 1998 | 4.09 | 3.48 | 7.74 | -27.47 | -21.49 | -3.42 |
| 1999 | 18.73 | 13.46 | 37.30 | 14.63 | 9.98 | 29.56 |
| 2000 | 29.95 | 28.35 | 25.71 | 11.23 | 14.89 | -11.59 |
| 2001 | 4.91 | 8.01 | 4.69 | -25.05 | -20.34 | -21.02 |
| 2002 | 33.50 | 15.61 | 17.61 | 28.60 | 7.61 | 12.92 |
| 2003 | 24.59 | 28.45 | 41.91 | -8.91 | 12.83 | 24.29 |
| 2004 | 4.36 | 9.26 | 9.68 | -20.24 | -19.18 | -32.23 |
| 2005 | 39.93 | 35.66 | 44.79 | 35.57 | 26.39 | 35.11 |
| 2006 | 4.49 | 9.83 | 14.00 | -35.44 | -25.82 | -30.79 |
| 2007 | 17.76 | 2.21 | 7.24 | 13.28 | -7.63 | -6.76 |
| 2008 | 30.71 | 36.88 | 47.15 | 12.94 | 34.68 | 39.91 |
| 2009 | 6.45 | 7.66 | 5.70 | -24.26 | -29.22 | -41.45 |
| 2010 | 15.66 | 5.03 | 10.96 | 9.21 | -2.63 | 5.26 |
| 2011 | 39.71 | 19.64 | 18.56 | 24.05 | 14.61 | 7.60 |
| 2012 | 12.09 | 13.39 | 11.00 | -27.62 | -6.25 | -7.56 |
| 2013 | 11.92 | 6.49 | 6.01 | -0.17 | -6.91 | -4.99 |
| 2014 | 49.58 | 21.77 | 43.50 | 37.67 | 15.28 | 37.49 |
| 2015 | 35.79 | 25.63 | 19.23 | -13.79 | 3.86 | -24.26 |
| 2016 | 24.76 | 8.52 | 14.33 | -11.04 | -17.11 | -4.90 |
| 2017 | 44.64 | 15.19 | 36.59 | 19.88 | 6.66 | 22.26 |