Spatial and temporal distribution in the biochemical composition of sedimentary organic matter in a tropical estuary along the west coast of India
Distribution of sedimentary organic matter was undertaken in Cochin estuary, the second largest wetland ecosystem in India. Surface sediment samples were collected from twenty-seven stations during 2016 constituting the pre- and post-monsoon periods. The sediment samples were analysed for labile fra...
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| Veröffentlicht in: | SN applied sciences 2019-02, Vol.1 (2), p.150, Article 150 |
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| creator | Mathew, Jose Gopinath, Anu Martin, G. D. |
| description | Distribution of sedimentary organic matter was undertaken in Cochin estuary, the second largest wetland ecosystem in India. Surface sediment samples were collected from twenty-seven stations during 2016 constituting the pre- and post-monsoon periods. The sediment samples were analysed for labile fractions of biochemical constituents such as carbohydrates (CHO), proteins (PRT) and lipids (LPD). Irrespective of the sampling periods, proteins (71%, 38%) constitute the major labile fraction, followed by carbohydrate (23%, 36%) and finally lipids (5%, 24). The application of biochemical index using PRT:CHO ratio revealed the presence of freshly deposited as well as the presence of aged organic matter in the estuary. The LPD:CHO ratio revealed low nutritional quality of sedimentary organic matter during the pre-monsoon and enhanced quality in post-monsoon. The trophic state classification based on biopolymeric carbon (BPC), PRT and CHO values unveils the fact that estuarine sediment nature varied between mesotrophic, eutrophic and meso-oligotrophic status. Low BPC:TOC ratios were observed pointing less availability of food to benthic source, and the organic matter present was mainly refractory in nature. |
| doi_str_mv | 10.1007/s42452-018-0128-2 |
| format | Article |
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D.</creator><creatorcontrib>Mathew, Jose ; Gopinath, Anu ; Martin, G. D.</creatorcontrib><description>Distribution of sedimentary organic matter was undertaken in Cochin estuary, the second largest wetland ecosystem in India. Surface sediment samples were collected from twenty-seven stations during 2016 constituting the pre- and post-monsoon periods. The sediment samples were analysed for labile fractions of biochemical constituents such as carbohydrates (CHO), proteins (PRT) and lipids (LPD). Irrespective of the sampling periods, proteins (71%, 38%) constitute the major labile fraction, followed by carbohydrate (23%, 36%) and finally lipids (5%, 24). The application of biochemical index using PRT:CHO ratio revealed the presence of freshly deposited as well as the presence of aged organic matter in the estuary. The LPD:CHO ratio revealed low nutritional quality of sedimentary organic matter during the pre-monsoon and enhanced quality in post-monsoon. The trophic state classification based on biopolymeric carbon (BPC), PRT and CHO values unveils the fact that estuarine sediment nature varied between mesotrophic, eutrophic and meso-oligotrophic status. Low BPC:TOC ratios were observed pointing less availability of food to benthic source, and the organic matter present was mainly refractory in nature.</description><identifier>ISSN: 2523-3963</identifier><identifier>EISSN: 2523-3971</identifier><identifier>DOI: 10.1007/s42452-018-0128-2</identifier><language>eng</language><publisher>Cham: Springer International Publishing</publisher><subject>2. 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The LPD:CHO ratio revealed low nutritional quality of sedimentary organic matter during the pre-monsoon and enhanced quality in post-monsoon. The trophic state classification based on biopolymeric carbon (BPC), PRT and CHO values unveils the fact that estuarine sediment nature varied between mesotrophic, eutrophic and meso-oligotrophic status. Low BPC:TOC ratios were observed pointing less availability of food to benthic source, and the organic matter present was mainly refractory in nature.</description><subject>2. Earth and Environmental Sciences (general)</subject><subject>Agricultural management</subject><subject>Applied and Technical Physics</subject><subject>Aquaculture</subject><subject>Aquatic ecosystems</subject><subject>Biochemical composition</subject><subject>Biochemistry</subject><subject>Carbohydrates</subject><subject>Carbon</subject><subject>Chemistry/Food Science</subject><subject>Earth Sciences</subject><subject>Engineering</subject><subject>Environment</subject><subject>Estuaries</subject><subject>Estuarine ecosystems</subject><subject>Eutrophication</subject><subject>Food availability</subject><subject>Food security</subject><subject>Food sources</subject><subject>Influence</subject><subject>Lipids</subject><subject>Materials Science</subject><subject>Monsoons</subject><subject>Nutritive value</subject><subject>Organic matter</subject><subject>Pollutants</subject><subject>Proteins</subject><subject>Research Article</subject><subject>Rivers</subject><subject>Sediment samplers</subject><subject>Sediments</subject><subject>Temporal distribution</subject><subject>Wind</subject><issn>2523-3963</issn><issn>2523-3971</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp1kMtOAyEYhYnRxEb7AO5IXI9ymSnM0jRemjRxoa4Jw6Wl6cAITIyv4RPLtEZXLuAH_vMd4ABwhdENRojdpprUDakQ5mUQXpETMCMNoRVtGT79XS_oOZintEMIEdbSmtMZ-HoZZHZyD6XXMJt-CLFstEs5um7MLnjoPMxbAzsX1Nb0TpW-CkWY3KEdLExGu974LOMnDHEjvVOwlzmbOMES5hiGA2dSHieR3Ae_Obh-lKNiJ8tcjFZeO3kJzqzcJzP_qRfg7eH-dflUrZ8fV8u7daVo0-ZKMWqItARZ2xAldYu4pBZbbQxFnGtNrcLWsroUZRY1NhLhRctZZzBmuqMX4ProO8TwPpZ3iF0Yoy9XCsI4r2uEMCsqfFSpGFKKxoohur58QmAkpvTFMX1R0hdT-oIUhhyZVLR-Y-Kf8__QN5Vxi1Y</recordid><startdate>20190201</startdate><enddate>20190201</enddate><creator>Mathew, Jose</creator><creator>Gopinath, Anu</creator><creator>Martin, G. 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Earth and Environmental Sciences (general)</topic><topic>Agricultural management</topic><topic>Applied and Technical Physics</topic><topic>Aquaculture</topic><topic>Aquatic ecosystems</topic><topic>Biochemical composition</topic><topic>Biochemistry</topic><topic>Carbohydrates</topic><topic>Carbon</topic><topic>Chemistry/Food Science</topic><topic>Earth Sciences</topic><topic>Engineering</topic><topic>Environment</topic><topic>Estuaries</topic><topic>Estuarine ecosystems</topic><topic>Eutrophication</topic><topic>Food availability</topic><topic>Food security</topic><topic>Food sources</topic><topic>Influence</topic><topic>Lipids</topic><topic>Materials Science</topic><topic>Monsoons</topic><topic>Nutritive value</topic><topic>Organic matter</topic><topic>Pollutants</topic><topic>Proteins</topic><topic>Research Article</topic><topic>Rivers</topic><topic>Sediment samplers</topic><topic>Sediments</topic><topic>Temporal distribution</topic><topic>Wind</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mathew, Jose</creatorcontrib><creatorcontrib>Gopinath, Anu</creatorcontrib><creatorcontrib>Martin, G. D.</creatorcontrib><collection>CrossRef</collection><jtitle>SN applied sciences</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Mathew, Jose</au><au>Gopinath, Anu</au><au>Martin, G. D.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Spatial and temporal distribution in the biochemical composition of sedimentary organic matter in a tropical estuary along the west coast of India</atitle><jtitle>SN applied sciences</jtitle><stitle>SN Appl. Sci</stitle><date>2019-02-01</date><risdate>2019</risdate><volume>1</volume><issue>2</issue><spage>150</spage><pages>150-</pages><artnum>150</artnum><issn>2523-3963</issn><eissn>2523-3971</eissn><abstract>Distribution of sedimentary organic matter was undertaken in Cochin estuary, the second largest wetland ecosystem in India. Surface sediment samples were collected from twenty-seven stations during 2016 constituting the pre- and post-monsoon periods. The sediment samples were analysed for labile fractions of biochemical constituents such as carbohydrates (CHO), proteins (PRT) and lipids (LPD). Irrespective of the sampling periods, proteins (71%, 38%) constitute the major labile fraction, followed by carbohydrate (23%, 36%) and finally lipids (5%, 24). The application of biochemical index using PRT:CHO ratio revealed the presence of freshly deposited as well as the presence of aged organic matter in the estuary. The LPD:CHO ratio revealed low nutritional quality of sedimentary organic matter during the pre-monsoon and enhanced quality in post-monsoon. The trophic state classification based on biopolymeric carbon (BPC), PRT and CHO values unveils the fact that estuarine sediment nature varied between mesotrophic, eutrophic and meso-oligotrophic status. 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| subjects | 2. Earth and Environmental Sciences (general) Agricultural management Applied and Technical Physics Aquaculture Aquatic ecosystems Biochemical composition Biochemistry Carbohydrates Carbon Chemistry/Food Science Earth Sciences Engineering Environment Estuaries Estuarine ecosystems Eutrophication Food availability Food security Food sources Influence Lipids Materials Science Monsoons Nutritive value Organic matter Pollutants Proteins Research Article Rivers Sediment samplers Sediments Temporal distribution Wind |
| title | Spatial and temporal distribution in the biochemical composition of sedimentary organic matter in a tropical estuary along the west coast of India |
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