S. C. S. Das

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Jackiella Schiffner is highly interesting and remarkable genus belonging to the monogeneric family Jackiellaceae. Globally, the genus is represented by eight species and two varieties and in India by two species and two varieties. The present communication records the first report of Jackiella javanica Schiffner variety cordifolia Schiffner, a rare taxon(More)
Nile tilapia Oreochromis niloticus is the dominant invasive species of the river Yamuna. Gut analysis showed that the majority of the food items ingested consisted of Chlorophyceae, Myxophyceae, Bacillariophyceae and detritus. Among the diatoms—Synedra spp. (80.75 %), Melosira spp. (73.5 %), Cyclotella spp. (73 %), Meridion spp. (71.75 %) and Nitzchia spp.(More)
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