Table 3.
Seasonal medians and ranges of A. catenella cell numbers and particulate STX concentrations measured in surface waters in the King Harbor Marina, City of Redondo Beach
| Season | Cells |
STX |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Cell no. (cells liter−1) |
% positive samplesa | nb | STX concn (ng liter−1) |
% positive samples | n | |||||
| Minimum | Median | Maximum | Minimum | Median | Maximum | |||||
| Winter | 26 | 79 | 488 | 18 | 28 | BDd | 0 | 14 | ||
| Spring | 27 | 244c | 5,680 | 38 | 47 | 3.0 | 6.1 | 25.8 | 24 | 38 |
| Summer | 35 | 83 | 161 | 7 | 43 | 3.0 | 3.0 | 3.0 | 4 | 23 |
| Fall | 553 | 533 | 533 | 2 | 44 | BD | 0 | 16 | ||
| Annual | 26 | 171 | 5,680 | 17 | 162 | 3.0 | 5.9 | 26 | 11 | 91 |
a
Ratio of the number of samples in which cells or STX was detected to the total number of samples analyzed for a given season expressed as a percentage.
b
n, number of samples.
c
Significantly different median value (Kruskal-Wallis, P < 0.05; performed on all data sets, including zero values).
d
BD, below detection limit.