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Two algal species of Volvox L. with their taxonomyand ecology from West Bengal, India |
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รหัสดีโอไอ | |
Creator | Nilu Halder |
Title | Two algal species of Volvox L. with their taxonomyand ecology from West Bengal, India |
Publisher | Research and Development Office, Prince of Songkla University |
Publication Year | 2559 |
Journal Title | Songklanakarin Journal of Science and Technology (SJST) |
Journal Vol. | 38 |
Journal No. | 4 |
Page no. | 435-437 |
Keyword | taxonomy,ecology,Volvox L.,Hooghly,West Bengal,India |
ISSN | 0125-3395 |
Abstract | The present paper was communicated with the taxonomic description and ecology of two species of the genus VolvoxL. viz. Volvox aureus Ehr. and Volvox globator L. under the order Volvocales of class Chlorophyceae. They are freshwaterand planktonic phycoflora. The colony of former species was comparatively smaller (340 ?m) than the later (480 ?m) whereas,somatic cells were found slightly larger in the former species in comparison to later species. Both were colonial, multicellular,greenish and formed dots like appearances in the water bodies and, exhibited phototactic movements. These two specieswere being reported first time from Hooghly of West Bengal, India. The ecological study showed that they preferred to growin alkaline water (pH 7.3-7.5) with slight high organic nutrient contents (NO3-N: PO43- ratios: 0.25-0.35: 0.30-0.32 mg/l). Thisstudy also revealed that higher total alkalinity values (174.0-184.0 mg/l) were favorable for their developments and theirmaximum growth noticed in summer in aquatic ecosystems. |