Seasonal variations of zooplankton biomass and size-fractionated abundance in relation to environmental changes in a tropical mangrove estuary in the Straits of Malacca
Seasonal variations of zooplankton community in terms of biomass and size-fractionated densities were studied in a tropical Sangga Kechil river, Matang, Perak from June 2010 to April 2011. Zooplankton and jellyfish (hydromedusae, siphonophores and ctenophores) samples were collected bimonthly from f...
| मुख्य लेखकों: | , , , |
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| स्वरूप: | लेख |
| भाषा: | English |
| प्रकाशित: |
Triveni Enterprises
2016
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| ऑनलाइन पहुंच: | http://psasir.upm.edu.my/id/eprint/53779/1/Seasonal%20variations%20of%20zooplankton%20biomass%20and%20size-fractionated%20abundance%20.pdf |
| _version_ | 1825930916073046016 |
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| author | A.R.S., Balqis Md. Yusoff, Fatimah Arshad, Aziz Nishikawa, Jun |
| author_facet | A.R.S., Balqis Md. Yusoff, Fatimah Arshad, Aziz Nishikawa, Jun |
| author_sort | A.R.S., Balqis |
| collection | UPM |
| description | Seasonal variations of zooplankton community in terms of biomass and size-fractionated densities were studied in a tropical Sangga Kechil river, Matang, Perak from June 2010 to April 2011. Zooplankton and jellyfish (hydromedusae, siphonophores and ctenophores) samples were collected bimonthly from four sampling stations by horizontal towing of a 140-?m plankton net and 500 ?m bongo net, respectively. A total of 12 zooplankton groups consisting of six groups each of mesozooplankon (0.2 mm-2.0 mm) and macrozooplankton (2.0 mm-20.0 cm) were recorded. The total zooplankton density (12375?3339 ind m(-3)) and biomass (35.32?14.56 mg m(-3)) were highest during the northeast (NE) monsoon and southwest (SW) monsoon, respectively, indicating the presence of bigger individuals in the latter season. Mesozooplankton predominated (94%) over the macrozooplankton (6%) during all the seasons, and copepods contributed 84% of the total mesozooplankton abundance. Macrozooplankton was dominated by appendicularians during most of the seasons (43%-97%), except during the NE monsoon (December) when chaetognaths became the most abundant (89% of the total macrozooplankton). BIO-ENV analysis showed that total zooplankton density was correlated with turbidity, total nitrogen and total phosphorus, which in turn was positively correlated to chlorophyll a. Cluster analysis of the zooplankton community showed no significant temporal difference between the SW and NE monsoon season during the study period (> 90% similarity). The present study revealed that the zooplankton community in the tropical mangrove estuary in the Straits of Malacca was dominated by mesoplankton, especially copepods. |
| first_indexed | 2024-03-06T09:18:49Z |
| format | Article |
| id | upm.eprints-53779 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T09:18:49Z |
| publishDate | 2016 |
| publisher | Triveni Enterprises |
| record_format | dspace |
| spelling | upm.eprints-537792018-01-23T09:21:38Z http://psasir.upm.edu.my/id/eprint/53779/ Seasonal variations of zooplankton biomass and size-fractionated abundance in relation to environmental changes in a tropical mangrove estuary in the Straits of Malacca A.R.S., Balqis Md. Yusoff, Fatimah Arshad, Aziz Nishikawa, Jun Seasonal variations of zooplankton community in terms of biomass and size-fractionated densities were studied in a tropical Sangga Kechil river, Matang, Perak from June 2010 to April 2011. Zooplankton and jellyfish (hydromedusae, siphonophores and ctenophores) samples were collected bimonthly from four sampling stations by horizontal towing of a 140-?m plankton net and 500 ?m bongo net, respectively. A total of 12 zooplankton groups consisting of six groups each of mesozooplankon (0.2 mm-2.0 mm) and macrozooplankton (2.0 mm-20.0 cm) were recorded. The total zooplankton density (12375?3339 ind m(-3)) and biomass (35.32?14.56 mg m(-3)) were highest during the northeast (NE) monsoon and southwest (SW) monsoon, respectively, indicating the presence of bigger individuals in the latter season. Mesozooplankton predominated (94%) over the macrozooplankton (6%) during all the seasons, and copepods contributed 84% of the total mesozooplankton abundance. Macrozooplankton was dominated by appendicularians during most of the seasons (43%-97%), except during the NE monsoon (December) when chaetognaths became the most abundant (89% of the total macrozooplankton). BIO-ENV analysis showed that total zooplankton density was correlated with turbidity, total nitrogen and total phosphorus, which in turn was positively correlated to chlorophyll a. Cluster analysis of the zooplankton community showed no significant temporal difference between the SW and NE monsoon season during the study period (> 90% similarity). The present study revealed that the zooplankton community in the tropical mangrove estuary in the Straits of Malacca was dominated by mesoplankton, especially copepods. Triveni Enterprises 2016-07 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/53779/1/Seasonal%20variations%20of%20zooplankton%20biomass%20and%20size-fractionated%20abundance%20.pdf A.R.S., Balqis and Md. Yusoff, Fatimah and Arshad, Aziz and Nishikawa, Jun (2016) Seasonal variations of zooplankton biomass and size-fractionated abundance in relation to environmental changes in a tropical mangrove estuary in the Straits of Malacca. Journal of Environmental Biology, 37 (spec. 4). pp. 685-695. ISSN 0254-8704; ESSN: 2394-0379 http://www.jeb.co.in/index.php?page=abstract&issue=201607_jul16_spl&number=7 |
| spellingShingle | A.R.S., Balqis Md. Yusoff, Fatimah Arshad, Aziz Nishikawa, Jun Seasonal variations of zooplankton biomass and size-fractionated abundance in relation to environmental changes in a tropical mangrove estuary in the Straits of Malacca |
| title | Seasonal variations of zooplankton biomass and size-fractionated abundance in relation to environmental changes in a tropical mangrove estuary in the Straits of Malacca |
| title_full | Seasonal variations of zooplankton biomass and size-fractionated abundance in relation to environmental changes in a tropical mangrove estuary in the Straits of Malacca |
| title_fullStr | Seasonal variations of zooplankton biomass and size-fractionated abundance in relation to environmental changes in a tropical mangrove estuary in the Straits of Malacca |
| title_full_unstemmed | Seasonal variations of zooplankton biomass and size-fractionated abundance in relation to environmental changes in a tropical mangrove estuary in the Straits of Malacca |
| title_short | Seasonal variations of zooplankton biomass and size-fractionated abundance in relation to environmental changes in a tropical mangrove estuary in the Straits of Malacca |
| title_sort | seasonal variations of zooplankton biomass and size fractionated abundance in relation to environmental changes in a tropical mangrove estuary in the straits of malacca |
| url | http://psasir.upm.edu.my/id/eprint/53779/1/Seasonal%20variations%20of%20zooplankton%20biomass%20and%20size-fractionated%20abundance%20.pdf |
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