Skip to main content
. 2013 Jun 19;8(6):e66674. doi: 10.1371/journal.pone.0066674

Table 4. Phytoplankton, cyanobacteria and microcystin parameters.

Site CB fraction H’Phyto H’Zoo Daphnia/cal. cop. Intracell. MC Bioaccum. MC
1 44.0ab 1.15ab 0.72ab 0.78 0.68ab 105.3
(12.2–82.8) (0.56–1.24) (0.24–1.06) (0.00–2.42) (0.13–6.63) (10.1–139.2)
2 39.7ab 1.19ab 0.80ab 0.91 1.15ab 34. 5 (4)
(10.2–88.5) (0.48–1.31) (0.16–1.19) (0.00–1.77) (0.26–5.74) (11.1–131.6)
3 46.4ab 1.15ab 0.59a 0.61 0.30a) 12.2
(22.0–86.8) (0.53–1.26) (0.24–0.86) (0.00–3.11) (0.00–7.59) (0.0–104.8)
4 51.4ab 1.11ab 0.68a 0.54 2.07ab 57.0
(12.5–89.3) (0.44–1.21) (0.44–0.74) (0.00–4.44) (0.20–5.69) (1.1–124.4)
5 67.8b 0.72a 0.73a 0.72 9.59a 70.19 (3)
(21.0–90.09) (0.37–1.15) (0.22–0.89) (0.00–1.86) (0.40–557.57) (0.0–72.8)
6 30.8a 1.13ab 0.99b 1.23 0.23ab 28.8 (4)
(7.3–80.2) (0.71–1.28) (0.68–1.14) (0.26–13.91) (0.00–2.52) (0.0–40.8)
7 28.6a 1.23b 1.06b 1.04 0.15b 63.01
(9.5–74.7) (0.82–1.30) (0.77–1.34) (0.44–3.03) (0.00–0.90) (16.9–187.0)

Median and range (minimum – maximum) for phytoplankton, cyanobacteria, microcystin, and zooplankton parameters measured between August and December 2010 for each site at Lake Yangebup. CB fraction = cyanobacterial biomass as % of total phytoplankton biomass, H’Phyto = Shannon-Wiener Index based on phytoplankton biomass, H’Zoo = Shannon-Wiener Index based on zooplankton biomass, Daphnia/cal. cop. = ratio of Daphnia to calanoid copepoda, Intracell. MC = intracellular microcystin concentration (µg L−1), Bioaccum. MC = bioaccumulated microcystin concentration in zooplankton (µg MC g−1 dry mass). N = 5 unless stated otherwise in superscript brackets. Superscript letters indicate results of post-hoc tests for differences between sites for each parameter with sites having identical letters being not significantly different.