Nitrate

Diversity index

Species richness

Turbidity

Abundance (ecology)

Biology

Canonical correspondence analysis

Environmental chemistry

Salinity

Nutrient

Chemistry

Ecology

Phytoplankton

Wetland

Environmental science

Applied Water Science

Studies were carried out from April 2016 to March 2017 for effective understanding of diversity combined with environment-influenced spatiotemporal dynamics of microfloral structure in Kailash Khal wetland of Indian Sundarbans. A total of 36 phytoplankton genera were recorded from the study area. Eight major algal groups were in order of: Bacillariophyceae &gt; Cyanophyceae &gt; Chlorophyceae &gt; Coscinodiscophyceae &gt; Xanthophyceae &gt; Euglenophyceae &gt; Conjugatophyceae &gt; Mediophyceae with respect to their quantitative abundance. Mean seasonal abundance was found highest in pre-monsoon (4.32 × 10 3 cells l −1 ) followed by post-monsoon (3.88 × 10 3 cells l −1 ) and monsoon (1.96 × 10 3 cells l −1 ). One-way ANOVA showed that seasonal difference in physicochemical parameters was statistically significant for temperature, DO, specific conductivity, TA, TS, Ca ++ , nitrate, transparency, salinity, TH, turbidity, Mg ++ and phosphate ( p &lt; 0.05). pH, temperature, total hardness, TDS nitrate, phosphate and silicate showed a close affinity with the distribution of phytoplankton community as evident from canonical correspondence analysis. Margalef richness index (3.121–3.774) and Shannon–Wiener diversity index (2.730–2.939) indicated moderately rich phytoplankton diversity in the wetland ecosystem.

Seasonal influence of physicochemical parameters on phytoplankton diversity and assemblage pattern in Kailash Khal, a tropical wetland, Sundarbans, India