Spatio-temporal variation of CO2 emission from Chilika Lake, a tropical coastal lagoon, on the east coast of India

Muduli, Pradipta R.; Kanuri, Vishnu Vardhan; Robin, R.S.; Kumar, B. Charan; Patra, Sivaji; Raman, A. V.; Rao, G. Nageswarara; Subramanian, B. R.

doi:10.1016/j.ecss.2012.08.020

Cited by 59 publications

(25 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In several stations particularly within the central sector, pH values peaked to 10.3 during post-monsoon season which might be due to high biological activity and/or seawater intrusion. Recent studies conducted on the water quality of Chilika lagoon have also recorded pH ranging between 6.7 and 9.98 (Muduli et al 2012). The alkaline pH of the lagoon is particularly conducive for proliferation of seagrass beds and survival of aquatic organisms such as fishes in the Chilika lagoon.…”

Section: Phmentioning

confidence: 97%

Spatiotemporal distribution and composition of phytoplankton assemblages in a coastal tropical lagoon: Chilika, India

Srichandan

Kim

Bhadury

et al. 2015

Environ Monit Assess

Self Cite

View full text Add to dashboard Cite

The Asia's largest lagoon, Chilika, is a shallow water estuary and a designated "Ramsar" site located in the east coast of India. The spatiotemporal diversity of phytoplankton based on the monthly sampling between July 2011 and June 2012 was investigated in relation to physicochemical variables of the surface water column from 13 stations. The salinity was minimum (average 9) during the monsoon which was primarily due to riverine discharge. As the season progressed towards post-monsoon, average salinity of the whole lagoon reached to 10 which further increased to 20 during pre-monsoon season. A total of 259 species of phytoplankton, mostly dominated by the Bacillariophyta (138 species) followed by Dinophyta (38 species), Chlorophyta (32 species), Cyanophyta (29 species), Euglenophyta (18 species), and Chrysophyta (4 species), were recorded in this study. Different ecological sectors of the lagoon (except the northern sector) were dominated by diatoms, while the northern sector due to its freshwater regime supported large population of euglenoids. Based on the multivariate ordination analysis, salinity regime and light availability played important role in determining the distribution, diversity, and composition of phytoplankton communities. Overall, this study documented a very high diversity of phytoplankton and highlighted the importance of taking extensive sampling in getting a clearer understanding of phytoplankton community structure in less-studied environments such as Chilika lagoon.

show abstract

Section: Phmentioning

confidence: 97%

Spatiotemporal distribution and composition of phytoplankton assemblages in a coastal tropical lagoon: Chilika, India

Srichandan

Kim

Bhadury

et al. 2015

Environ Monit Assess

Self Cite

View full text Add to dashboard Cite

show abstract

“…A total of 52 rivers and rivulets drain into the lagoon, out of which the northeast rivers contribute about 80% of the annual freshwater load. The mixing of freshwater from rivers and saline waters through the lagoon's mouth significantly influences the biogeochemistry and biodiversity of the lagoon (Muduli et al 2012(Muduli et al , 2013Barik et al 2017). Due to this complex salinity regime, the lagoon hosts a dynamic ecosystem that offers a vast array of biological diversity.…”

mentioning

confidence: 99%

Sources and Variability of Petroleum Hydrocarbon Residues in Sediments of Chilika Lagoon, East Coast of India

Mohanty

Muduli

Cooper

et al. 2017

Bull Environ Contam Toxicol

Self Cite

View full text Add to dashboard Cite

“…Flow from all the rivers reached a maximum during monsoon followed by significant reduction in post-and premonsoon. Ecologically, the shallow lagoon represents a combined character of marine, brackish and freshwater ecosystems (Muduli et al 2012) with very low water column stratification.…”

Section: Study Areamentioning

confidence: 99%

Influence of nutrient input on the trophic state of a tropical brackish water lagoon

et al. 2015

Self Cite

View full text Add to dashboard Cite

Ecosystem level changes in water quality and biotic communities in coastal lagoons have been associated with intensification of anthropogenic pressures. In light of incipient changes in Asia's largest brackish water lagoon (Chilika, India), an examination of different dissolved nutrients distribution and phytoplankton biomass, was conducted through seasonal water quality monitoring in the year 2011. The lagoon showed both spatial and temporal variation in nutrient concentration, mostly altered by freshwater input, regulated the chlorophyll distribution as well. Dissolved inorganic N:P ratio in the lagoon showed nitrogen limitation in May and December, 2011. Chlorophyll in the lagoon varied between 3.38 and 17.66 mg m −3 . Spatially, northern part of the lagoon showed higher values of DIN and chlorophyll during most part of the year, except in May, when highest DIN was recorded in the southern part. Statistical analysis revealed that dissolved NH + 4 -N and urea could combinedly explain 43% of Chlorophyll-a (Chl-a) variability which was relatively higher than that explained by NO − 3 -N and NO − 2 -N (12.4%) in lagoon water. Trophic state index calculated for different sectors of the lagoon confirmed the intersectoral and inter-seasonal shift from mesotrophic to eutrophic conditions largely depending on nutrient rich freshwater input.

show abstract

Spatio-temporal variation of CO2 emission from Chilika Lake, a tropical coastal lagoon, on the east coast of India

Cited by 59 publications

References 65 publications

Spatiotemporal distribution and composition of phytoplankton assemblages in a coastal tropical lagoon: Chilika, India

Spatiotemporal distribution and composition of phytoplankton assemblages in a coastal tropical lagoon: Chilika, India

Sources and Variability of Petroleum Hydrocarbon Residues in Sediments of Chilika Lagoon, East Coast of India

Influence of nutrient input on the trophic state of a tropical brackish water lagoon

Contact Info

Product

Resources

About