19. Effect of water quality on algal diversity in various sites of district Charsadda, Khyber Pakhtunkhwa (KPK)-Pakistan

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Zahir Shah, Syed Zahir Shah Muhammad Shuaib Khan Niaz Khan Tahir Khan Fida Hussain

Abstract

Abstract


Seasonal distribution of algae determined in three research sites of river Jindi, Pakistan. Samples of 5 classes having 46 families, 54 genera, 107 spp., out of 107 spp. 46.72% collected in winter, 53.27% in summer seasons. The most abundant class Bacillariophyta with 24 genera, 46 spp. (46.9%), followed by Chlorophyceae with 18genera, 33 spp. (30.8%), Cyanophyceae with 8 genera, 20 spp. (18.69%), Euglenophyceae with 3 genera, 6 spp. (5.60%), Charophyceae with 1genus, 1 spp. (0.93%) in both seasons. In winter season, abundant class Bacillariophyceae with 14 genera, 24 spp. (48.97%), followed by Chlorophyceae with 11genera, 22 spp. (44.89%), Euglenophyceae 2 genera, 1 spp. Charophyceae with 1 genus, 1 spp. (2.04%). In summer season, abundant class Bacillariophyceae with 10 genera, 22 spp. (38.59%), followed by Cyanophceae 7 genera, 19 spp. (33.33%), Chlorophyceae 7 genera, 11 spp. (19.29%), Euglenophyceae 2 genera, 5 spp. (8.77%). The genus spirogyra is abundant among all sites, shows wide range ecological amplitude, thus found in different habitats. The diatom, bluegreen algae dominated, summer season (38.59%), and (33.33%) respectively, followed by green algae 19.29%). The diatoms registered high numbers in summer (48.97%), winter (38.59%) respectively. The pH of water samples varied 7.35-8.89, more or less alkaline in nature. High pH is positively correlated with algal growth. Turbidity ranged from 5-18 NTU. High turbidity decreases oxygenation, high penetration. TDS, TSS were positively correlated with number of species. TDS were 212.9-297.9 mg/L. The amount of TSS varied from 17-37 mg/L, EC value 365-812 µS/cm. The optimum amount of EC favours growth, distribution of algae. Salinity value 0.5-2.1 mg/L suitable for the growth, distribution of algae. The total CO2 in water was 7.04-54.08 shows more respiration, results algal growth. The amount of DO varied from 2.5-3.8 mg/L. Nitrate as N2 content 0.05-1.8 mg/L, Phosphate as TP range from 0.5-1.4 mg/L and Ca Hardness as CaCO3 227-440 mg/L.


Keywords: Algae; Dissolved CO2; DO; EC; TSS; TDS


http://dx.doi.org/10.19045/bspab.2018.700175

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