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dc.contributor.authorNguyen, Tam Vinh
dc.coverage.spatialVietnamen_US
dc.date.accessioned2021-09-20T08:01:25Z
dc.date.available2021-09-20T08:01:25Z
dc.date.issued2020
dc.identifier.urihttp://hdl.handle.net/1834/41457
dc.description.abstractThis paper presents the results of the surveys on zooplankton in Thi Nai lagoon from 2001 to 2020. There were 179 species found in the lagoon, among which Copepod was the dominant group with 97 species (50.78% of total species), followed by Cladocera with 20 species (10.36%), Hydrozoa with 18 species (9.33%), Tunicata with 11 species (5.7%) and Siphonophora with 10 species (5.18%). Based on Bray-Curtis similarity analysis of zooplankton community and the station position, the sampling stations in the lagoon were grouped into three areas: The upper lagoon (UP), the middle (MI), and the mouth of the lagoon (MO). Among the surveyed years, there was a slight variation in the species number, while the density decreased by time and was especially low in 2020. Zooplankton density was much lower in the rainy season compared to that in the dry season, while the species number was less varied. Analysis of the differences between the areas in the lagoon demonstrated a clear distribution pattern of zooplankton with a decreasing density and an increasing number of species from upper lagoon to the mouth of the lagoon. Zooplankton diversity was less affected by time and only the Pielou index in the MI area between 2004 and 2009 was significantly different. Analysis of the various indices between seasons showed that the MO area was less volatile than the two other regions. The multi-dimensional scaling analysis demonstrated that zooplankton community was less variable by regions (50% similarity) compared to by the years (only 30% of similarity), except in 2009 and 2020 when differences among the areas were significant. Seasonal community change between the dry and rainy seasons was 30%.
dc.language.isovien_US
dc.relation.urihttps://doi.org/10.15625/1859-3097/15645en_US
dc.subject.otherDiversity indicesen_US
dc.subject.otherThi Nai lagoonen_US
dc.titleZooplankton community in Thi Nai lagoon in the period of 2001-2020en_US
dc.typeJournal Contributionen_US
dc.bibliographicCitation.issueSpecial issue to introduce scientific papers from the Collection of Marine Research Works, Volume 25 published in Vietnam Journal of Marine Science and Technology No. 4A(T20), 2020en_US
dc.bibliographicCitation.titleCollection of Marine Research Worksen_US
dc.bibliographicCitation.volume25en_US
dc.contributor.corpauthorDoan, Nhu Haien_US
dc.description.statusPublisheden_US
dc.format.pagerange35-44en_US
dc.subject.asfaZooplanktonen_US
html.description.abstractThis paper presents the results of the surveys on zooplankton in Thi Nai lagoon from 2001 to 2020. There were 179 species found in the lagoon, among which Copepod was the dominant group with 97 species (50.78% of total species), followed by Cladocera with 20 species (10.36%), Hydrozoa with 18 species (9.33%), Tunicata with 11 species (5.7%) and Siphonophora with 10 species (5.18%). Based on Bray-Curtis similarity analysis of zooplankton community and the station position, the sampling stations in the lagoon were grouped into three areas: The upper lagoon (UP), the middle (MI), and the mouth of the lagoon (MO). Among the surveyed years, there was a slight variation in the species number, while the density decreased by time and was especially low in 2020. Zooplankton density was much lower in the rainy season compared to that in the dry season, while the species number was less varied. Analysis of the differences between the areas in the lagoon demonstrated a clear distribution pattern of zooplankton with a decreasing density and an increasing number of species from upper lagoon to the mouth of the lagoon. Zooplankton diversity was less affected by time and only the Pielou index in the MI area between 2004 and 2009 was significantly different. Analysis of the various indices between seasons showed that the MO area was less volatile than the two other regions. The multi-dimensional scaling analysis demonstrated that zooplankton community was less variable by regions (50% similarity) compared to by the years (only 30% of similarity), except in 2009 and 2020 when differences among the areas were significant. Seasonal community change between the dry and rainy seasons was 30%.en_US
dc.description.refereedRefereeden_US


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