Papers by Suchismita Srichandan
Journal of Coastal Conservation
Bulletin of Environmental Contamination and Toxicology
Regional Studies in Marine Science
Science of The Total Environment
Marine Pollution Bulletin
Marine Pollution Bulletin
Journal of the Indian Society of Remote Sensing
Ecohydrology & Hydrobiology
Ecological Processes
A review of jellyfish aggregations focused on India’s coastal waters was conducted, with the aim ... more A review of jellyfish aggregations focused on India’s coastal waters was conducted, with the aim to enhance understanding of conducive conditions and subsequent ecological impacts. Jellyfish swarming, as well as their beach strandings, have been reported from many areas of the world—including India’s coastal waters. A variety of natural (winds, tidal fronts, surface currents, water temperature, salinity, turbidity, dissolved oxygen) and anthropogenic (water quality deterioration, overfishing, translocation, habitat modification) factors play pivotal roles in triggering jellyfish aggregations. Jellyfish aggregation events in the forms of their swarming in coastal waters and beach strandings have resulted in ephemeral nuisances such as water quality deterioration, food chain alterations, hindrance in seawater uptake by power plants, clogging of nets during fishing operations, and tourism declines. Several well-known Indian tourist beaches (e.g., Puri, Chennai, Goa, and Mumbai) have ex...
SN Applied Sciences
Optically active substances (OAS) such as chlorophyll-a (chl-a), chromophoric dissolved organic m... more Optically active substances (OAS) such as chlorophyll-a (chl-a), chromophoric dissolved organic matter (CDOM) and total suspended matter (TSM) play significant role in health assessment of aquatic ecosystem. Temporal variability in OAS plays important role in modulating coastal water ecology. This demand for continuous monitoring of OAS in coastal waters. The present study highlights on temporal variability of OAS off Gopalpur, a coastal site along the northwestern Bay of Bengal. The OAS were found to be having strong seasonal influence apart from large variability in concentration. Chl-a concentration showed fourfold variability (0.03-12.29 mg m −3) with seasonal trend of pre-monsoon > post-monsoon > monsoon. Absorption due to CDOM at 440 nm (a CDOM 440) varied between 0.02 and 4.48 m −1 following seasonal trend of pre-monsoon > monsoon > post-monsoon. TSM concentration was ranged within 0.1-28.21 mg l −1 showing maximum during monsoon and minimum during post-monsoon season. The higher concentration of chl-a and a CDOM 440, during pre-monsoon season, was predominantly due to ecosystem disrupting red tide event of Noctiluca bloom during pre-monsoon season of 2014. The high load of TSM during monsoon was due to increased river influx attributed to upstream precipitation. There was no significant relation observed among the OAS indicating that multiple sources of OAS in optically complex waters of the northwestern Bay of Bengal. The study provides understanding on long-term variations in OAS which is essential for development or tuning of bio-optical algorithms for accurate remote estimation of geophysical products. Keywords Chlorophyll-a • Total suspended matter • a CDOM 440 • Southwest monsoon • Bay of Bengal
Journal of Ocean University of China
Journal of Ocean University of China
Environmental Science and Pollution Research
Marine pollution bulletin, Jan 15, 2016
Concentrations of trace metals such as iron (Fe), copper (Cu), zinc (Zn), cobalt (Co), nickel (Ni... more Concentrations of trace metals such as iron (Fe), copper (Cu), zinc (Zn), cobalt (Co), nickel (Ni), manganese (Mn), lead (Pb), cadmium (Cd), chromium (Cr), arsenic (As), vanadium (V), and selenium (Se) were determined in seawater and zooplankton from the surface waters off Rushikulya estuary, north-western Bay of Bengal. During the study period, the concentration of trace metals in seawater and zooplankton showed significant spatio-temporal variation. Cu and Co levels in seawater mostly remained non-detectable. Other elements were found at higher concentrations and exhibited marked variations. The rank order distribution of trace metals in terms of their average concentration in seawater was observed as Fe>Ni>Mn>Pb>As>Zn>Cr>V>Se>Cd while in zooplankton it was Fe>Mn>Cd>As>Pb>Ni>Cr>Zn>V>Se. The bioaccumulation factor (BAF) of Fe was highest followed by Zn and the lowest value was observed with Ni. Results of correlation analysis di...
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Papers by Suchismita Srichandan