Interaction among non-toxic phytoplankton, toxic phytoplankton and zooplankton: inferences from field observations.
We explore the mutual dependencies and interactions among different groups of species of the plankton population, based on an analysis of the long-term field observations carried out by our group in the North-West coast of the Bay of Bengal. The plankton community is structured into three groups of...
| Main Authors: | , , , |
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| Format: | Journal article |
| Language: | English |
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2007
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| _version_ | 1797093648201940992 |
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| author | Roy, S Bhattacharya, S Das, P Chattopadhyay, J |
| author_facet | Roy, S Bhattacharya, S Das, P Chattopadhyay, J |
| author_sort | Roy, S |
| collection | OXFORD |
| description | We explore the mutual dependencies and interactions among different groups of species of the plankton population, based on an analysis of the long-term field observations carried out by our group in the North-West coast of the Bay of Bengal. The plankton community is structured into three groups of species, namely, non-toxic phytoplankton (NTP), toxic phytoplankton (TPP) and zooplankton. To find the pair-wise dependencies among the three groups of plankton, Pearson and partial correlation coefficients are calculated. To explore the simultaneous interaction among all the three groups, a time series analysis is performed. Following an Expectation Maximization (E-M) algorithm, those data points which are missing due to irregularities in sampling are estimated, and with the completed data set a Vector Auto-Regressive (VAR) model is analyzed. The overall analysis demonstrates that toxin-producing phytoplankton play two distinct roles: the inhibition on consumption of toxic substances reduces the abundance of zooplankton, and the toxic materials released by TPP significantly compensate for the competitive disadvantages among phytoplankton species. Our study suggests that the presence of TPP might be a possible cause for the generation of a complex interaction among the large number of phytoplankton and zooplankton species that might be responsible for the prolonged coexistence of the plankton species in a fluctuating biomass. |
| first_indexed | 2024-03-07T04:03:19Z |
| format | Journal article |
| id | oxford-uuid:c5526f8d-0628-4f14-87ec-c44054b0e7a4 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T04:03:19Z |
| publishDate | 2007 |
| record_format | dspace |
| spelling | oxford-uuid:c5526f8d-0628-4f14-87ec-c44054b0e7a42022-03-27T06:29:59ZInteraction among non-toxic phytoplankton, toxic phytoplankton and zooplankton: inferences from field observations.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:c5526f8d-0628-4f14-87ec-c44054b0e7a4EnglishSymplectic Elements at Oxford2007Roy, SBhattacharya, SDas, PChattopadhyay, JWe explore the mutual dependencies and interactions among different groups of species of the plankton population, based on an analysis of the long-term field observations carried out by our group in the North-West coast of the Bay of Bengal. The plankton community is structured into three groups of species, namely, non-toxic phytoplankton (NTP), toxic phytoplankton (TPP) and zooplankton. To find the pair-wise dependencies among the three groups of plankton, Pearson and partial correlation coefficients are calculated. To explore the simultaneous interaction among all the three groups, a time series analysis is performed. Following an Expectation Maximization (E-M) algorithm, those data points which are missing due to irregularities in sampling are estimated, and with the completed data set a Vector Auto-Regressive (VAR) model is analyzed. The overall analysis demonstrates that toxin-producing phytoplankton play two distinct roles: the inhibition on consumption of toxic substances reduces the abundance of zooplankton, and the toxic materials released by TPP significantly compensate for the competitive disadvantages among phytoplankton species. Our study suggests that the presence of TPP might be a possible cause for the generation of a complex interaction among the large number of phytoplankton and zooplankton species that might be responsible for the prolonged coexistence of the plankton species in a fluctuating biomass. |
| spellingShingle | Roy, S Bhattacharya, S Das, P Chattopadhyay, J Interaction among non-toxic phytoplankton, toxic phytoplankton and zooplankton: inferences from field observations. |
| title | Interaction among non-toxic phytoplankton, toxic phytoplankton and zooplankton: inferences from field observations. |
| title_full | Interaction among non-toxic phytoplankton, toxic phytoplankton and zooplankton: inferences from field observations. |
| title_fullStr | Interaction among non-toxic phytoplankton, toxic phytoplankton and zooplankton: inferences from field observations. |
| title_full_unstemmed | Interaction among non-toxic phytoplankton, toxic phytoplankton and zooplankton: inferences from field observations. |
| title_short | Interaction among non-toxic phytoplankton, toxic phytoplankton and zooplankton: inferences from field observations. |
| title_sort | interaction among non toxic phytoplankton toxic phytoplankton and zooplankton inferences from field observations |
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