Phytoplankton dynamic responses to oil spill in Mumbai Harbour

Show simple item record JiyalalRam, M.J. Ram, A. Rokade, M.A. Karangutkar, S.H. Yengal, B. Dalvi, S. Acharya, D. Sharma, S. Gajbhiye, S.N. 2013-09-06T07:39:44Z 2013-09-06T07:39:44Z 2013
dc.identifier.citation International Journal of Innovative Biological Research, vol.2(1); 2013; 30-50
dc.description.abstract The oil spill caused by collision of MSC-Chitra with MV-Khalijia on August 7, 2010 in Mumbai Harbour and surrounding area contaminated the shore and resulted in augmented level of PHc (6692.4-16902.2 mew g/l), though it was seen in low concentration (4.8-6.3 mew g/l) before oil spill (September, 2009). An enhanced concentration of chlorophyll a (2.4-39.2 mg/m sup (3)) during pre-spill decreased significantly (0.8-1.5 mg/m sup (3)) during oil spill. The ratios of chlorophyll a / phaeophytin were always >1 (2.7- 8.0) before oil spill which decreased to <1 (0.8-0.9) during the period of oil spill indicating an unhealthy condition of phytoplankton cells. Thus significantly high oil contamination in the region resulted in degradation of pigments and led markedly poor ratios of chlorophyll a / phaeophytin (<1) within a week of oil spill. The subsequent observations (after 16-31 days) showed an exemplary improvement in chlorophyll a (3.4-43.4 mg/m sup (3)). The phytoplankton population also revealed an impact of oil, with markedly decreased cell counts within a week (107 X 10 sup (3)- 109 X 10 sup (3) /l) at highly affected areas and increased significantly within a fortnight (17036 X 10 sup (3)- 50488 X 10 sup (3) /l). The continuous presence of Skeletonema costatum as a predominant species followed by Navicula, Thalassiosira, Nitzschia, Chaetoceros and Coscinodiscus revealed no significant alteration in community structure except composition of phytoplankton due to oil spill
dc.language.iso en
dc.publisher Sci-Edit Publications
dc.rights Copyright [2013]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
dc.subject oil spills
dc.subject phytoplankton
dc.subject chlorophylls
dc.subject environmental effects
dc.title Phytoplankton dynamic responses to oil spill in Mumbai Harbour
dc.type Journal Article

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