Impact assessment of barge trafficking on phytoplankton abundance and Chl a concentration, in River Ganga, India
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Title |
Impact assessment of barge trafficking on phytoplankton abundance and Chl a concentration, in River Ganga, India
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Creator |
Soma Das Sarkar
Malay Naskar Pranab Gogoi Rohan Kumar Raman Ranjan Kumar Manna Srikanta Samanta Bimal Prasanna Mohanty Basanta Kumar Das |
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Subject |
Phytoplankton
Chlorophyll Barge movement |
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Description |
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Impact of barge movement on phytoplankton abundance and biomass was assessed in the lower stretch of river Ganga, popularly known as Bhagirathi-Hooghly river, during April 2016 to March, 2017. Based on the magnitude of tide, intensity of shipping and boating activities, the stretch from Baranagar to Lalbag (278 km), located at latitude (22˚38’33.41"N to 24˚ 10’59.75"N) and longitude (88˚21’21.29"E to 88˚16’5.65"E) was divided into three zones viz. zone—I (Baranagar to Barrackpore), zone II (Triveni to Balagarh) and zone III (Nabadweep to Lalbag). Water samples were collected randomly from six stations covering 22 barge movements at their passage at three different time intervals viz., 30 minutes before ‘barge movement’, during ‘barge movement’ and 30 minutes after ‘barge movement’. Analysis revealed the presence of 52 phytoplankton taxa belonged to 5 phylum during the study period. The abundance of phytoplankton was highest in zone—I followed by zone III and the zone II. A 44% decrease (1,997 ±1,510 ul-1) in phytoplankton abundance was observed dur ing ‘barge movement’ with respect to normal condition (3,513 ± 2,239 ul-1) which could be due to propeller turbulence in the passage. Cell damage study revealed 21% damage in phytoplankton cell structure in ‘during barge’ followed by ‘after barge’ (10%) condition com pared to natural state (6%). Study revealed that phytoplankton biomass (Chlorophyll a) was influenced by ‘barge movement’ in the sampling stretches and the impact was assessed by one way ANOVA. The effect was found significant at Barrackpore (p Not Available |
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Date |
2021-07-24T09:24:58Z
2021-07-24T09:24:58Z 2019-08-07 |
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Type |
Article
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Identifier |
Das Sarkar S, Naskar M, Gogoi P, Raman RK, Manna RK, Samanta S, et al. (2019) Impact assessment of barge trafficking on phytoplankton abundance and Chl a concentration, in River Ganga, India. PLoS ONE 14(9): e0221451. https:// doi.org/10.1371/journal.pone.0221451
Not Available http://krishi.icar.gov.in/jspui/handle/123456789/49854 |
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Language |
English
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Relation |
Not Available;
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Publisher |
PLOS
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