Table 3. Timing and the directions (in parenthesis) of the shifts in the time series of ecological network indicators detected by the STARS algorithm.
| Indicator | 1960s | 1970s | 1980s | 1990s |
|---|---|---|---|---|
| Total system throughput (TST) | 1977 (+) | 1981 (+) | 1994 (−) | |
| A/C | 1970 (+), 1977 (+) | 1983 (−) | ||
| O/C | 1970 (−), 1978 (−) | 1983 (+) | 1996 (+) | |
| Predatory cycling index (PCI) | 1989 (−) | 1996 (+) | ||
| Finn’s cycling index (FCI) | 1968 (−) | 1973 (−), 1977 (−) | 1996 (+) | |
| Finn’s mean path length (PL) | 1965 (−), 1969 (−) | 1976 (−) | 1994 (+) | |
| Primary production (PP) | 1977 (+) | 1994 (−) | ||
| Biomass | 1977 (+) | 1995 (−) | ||
| Catch | 1972 (+), 1979 (+) | 1984 (−) | ||
| Proportion of flows to detritus | 1970 (+), 1978 (+) | 1996 (−) | ||
| Mean trophic level of the catch (mTLc) | 1964 (−) | 1971 (−) | ||
| Diversity | 1984 (−) | 1996 (+) | ||
| Fishing in balance index (FiB) | 1967 (+) | 1972 (+), 1979 (+) | 1984 (−) | |
| Loss of production index (L-index) | 1979 (+) | 1984 (−) | 1996 (+) | |
| Primary production required to sustain catches (PPRc) | 1964 (−) | 1979 (+) | 1989 (−) | |
| The probability of sustainable fishing (Psust) | 1997 (−) | |||
| Ratio of fodder zooplankton to total zooplankton | 1973 (−) | 1981 (−) | 1997 (+) | |
| Ratio of predatory fish to forage fish biomass | 1965 (−) | 1980 (+) | 1990 (−) | |
| Ratio of demersal fish to pelagic fish biomass | 1965 (−) | 1984 (+) | ||
| Ratio of fish to invertebrate biomass | 1967 (−) | 1973 (−) |
Note:
Positive signs denote an upward (increasing) shift, and negative signs denote a downward (decreasing) shift in the mean value of the indicators.