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. 2019 Apr 8;7:e6641. doi: 10.7717/peerj.6641

Table 3. Comparison of zooplankton abundance in relation to the size classes between the non-green tide period (NGTP) and green tide period (GTP) during summer (June–August) at the sampling station.

Variables NGTP GTP P-value
Abundance (ind. m−3)
0.3–0.5 mm 5,610.7 ± 1,367.8 2,265.4 ± 384.0 0.059
0.5–1.0 mm 2,924.7 ± 881.5 658.6 ± 122.7 0.035
1.0–2.0 mm 193.4 ± 67.7 91.4 ± 42.5 0.191
2.0–4.0 mm 36.0 ± 15.4 12.7 ± 5.7 0.183
>4.0 mm 15.3 ± 10.8 16.0 ± 9.7 0.964

Note:

Differences in abundance of size class between the two defined periods were tested by Wilcoxon test. Abundance values are average ± SE. Bold value corresponds to significant P-value at 0.05.