Seasonal variations in the structure of copepod assemblages in tropical marine and estuarine waters, Coleroon, South-East India
A twelve-month investigation was undertaken on how copepod community structure varied in relation to environmental factors in the Coleroon estuary, south-east India. Sampling was monthly, from Station 1 in the sea to Station 4 in the Vettar backwaters. Canonical correspondence analysis (CCA) was a...
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| Format: | Article |
| Language: | English |
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Marine Biological Association of the United Kingdom
2014
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| Online Access: | http://irep.iium.edu.my/36175/ http://irep.iium.edu.my/36175/1/M_M_Rahman_2014.pdf |
| _version_ | 1848781175065149440 |
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| author | Rajkumar, Mayalagu Sun, Jun Jenkinson, I. R. Rahman, Mohammad Mustafizur |
| author_facet | Rajkumar, Mayalagu Sun, Jun Jenkinson, I. R. Rahman, Mohammad Mustafizur |
| author_sort | Rajkumar, Mayalagu |
| building | IIUM Repository |
| collection | Online Access |
| description | A twelve-month investigation was undertaken on how copepod community structure varied in relation to environmental
factors in the Coleroon estuary, south-east India. Sampling was monthly, from Station 1 in the sea to Station 4 in the
Vettar backwaters. Canonical correspondence analysis (CCA) was applied to elucidate the environmental factors affecting
the copepod community. A total of 104 copepod species in 38 genera and 26 families were recorded, with the Calanoids,
Acartia erythraea and Oithona brevicornis being the most dominant. At all four stations, both these species loaded near the intercept of CCA axes 1 and 2, perhaps reflecting that they were autochthonous. Most species occurred in distinct seasonal patterns. Abundances ranged from 13 × 103 to 215 × 103 (ind. m-3). Coleroon waters showed high diversity (bits/ind.), from 5.29 at Station 3 to 4.97 at Station 4. Abundance correlated positively with temperature and salinity and negatively with rainfall, dissolved oxygen concentration (DO) and pH. Species diversity correlated strongly with abundance (P<0.01). Abundance and diversity were highest during the summer, and both correlated positively with salinity. Temperatures (air and water), salinity, pH and DO varied in the ranges 26–36oC,25–34.2oC, 9–38, 7.0–8.7 and 3.0–6.8 ml l-1, respectively. Nitrate, nitrite, phosphate and silicate (mM) varied in the ranges: 4.7–64.5, 0.4–14.1, 0.2–12.9 and 9.3–148, respectively. |
| first_indexed | 2025-11-14T15:45:23Z |
| format | Article |
| id | iium-36175 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T15:45:23Z |
| publishDate | 2014 |
| publisher | Marine Biological Association of the United Kingdom |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-361752014-04-16T05:14:02Z http://irep.iium.edu.my/36175/ Seasonal variations in the structure of copepod assemblages in tropical marine and estuarine waters, Coleroon, South-East India Rajkumar, Mayalagu Sun, Jun Jenkinson, I. R. Rahman, Mohammad Mustafizur SH Aquaculture. Fisheries. Angling A twelve-month investigation was undertaken on how copepod community structure varied in relation to environmental factors in the Coleroon estuary, south-east India. Sampling was monthly, from Station 1 in the sea to Station 4 in the Vettar backwaters. Canonical correspondence analysis (CCA) was applied to elucidate the environmental factors affecting the copepod community. A total of 104 copepod species in 38 genera and 26 families were recorded, with the Calanoids, Acartia erythraea and Oithona brevicornis being the most dominant. At all four stations, both these species loaded near the intercept of CCA axes 1 and 2, perhaps reflecting that they were autochthonous. Most species occurred in distinct seasonal patterns. Abundances ranged from 13 × 103 to 215 × 103 (ind. m-3). Coleroon waters showed high diversity (bits/ind.), from 5.29 at Station 3 to 4.97 at Station 4. Abundance correlated positively with temperature and salinity and negatively with rainfall, dissolved oxygen concentration (DO) and pH. Species diversity correlated strongly with abundance (P<0.01). Abundance and diversity were highest during the summer, and both correlated positively with salinity. Temperatures (air and water), salinity, pH and DO varied in the ranges 26–36oC,25–34.2oC, 9–38, 7.0–8.7 and 3.0–6.8 ml l-1, respectively. Nitrate, nitrite, phosphate and silicate (mM) varied in the ranges: 4.7–64.5, 0.4–14.1, 0.2–12.9 and 9.3–148, respectively. Marine Biological Association of the United Kingdom 2014 Article PeerReviewed application/pdf en http://irep.iium.edu.my/36175/1/M_M_Rahman_2014.pdf Rajkumar, Mayalagu and Sun, Jun and Jenkinson, I. R. and Rahman, Mohammad Mustafizur (2014) Seasonal variations in the structure of copepod assemblages in tropical marine and estuarine waters, Coleroon, South-East India. Journal of the Marine Biological Association of the United Kingdom, 94 (3). pp. 521-535. ISSN 0025-3154 http://journals.cambridge.org/action/displayJournal?jid=MBI 10.1017/S0025315413001768 |
| spellingShingle | SH Aquaculture. Fisheries. Angling Rajkumar, Mayalagu Sun, Jun Jenkinson, I. R. Rahman, Mohammad Mustafizur Seasonal variations in the structure of copepod assemblages in tropical marine and estuarine waters, Coleroon, South-East India |
| title | Seasonal variations in the structure of copepod assemblages in tropical marine and estuarine waters, Coleroon, South-East India |
| title_full | Seasonal variations in the structure of copepod assemblages in tropical marine and estuarine waters, Coleroon, South-East India |
| title_fullStr | Seasonal variations in the structure of copepod assemblages in tropical marine and estuarine waters, Coleroon, South-East India |
| title_full_unstemmed | Seasonal variations in the structure of copepod assemblages in tropical marine and estuarine waters, Coleroon, South-East India |
| title_short | Seasonal variations in the structure of copepod assemblages in tropical marine and estuarine waters, Coleroon, South-East India |
| title_sort | seasonal variations in the structure of copepod assemblages in tropical marine and estuarine waters, coleroon, south-east india |
| topic | SH Aquaculture. Fisheries. Angling |
| url | http://irep.iium.edu.my/36175/ http://irep.iium.edu.my/36175/ http://irep.iium.edu.my/36175/ http://irep.iium.edu.my/36175/1/M_M_Rahman_2014.pdf |