Seasonal Variations of Zooplankton Diversity in a Perennial Reservoir at Thoppaiyar, Dharmapuri District (original) (raw)
Related papers
Zooplankton community is cosmopolitan in nature and they inhabit all freshwater habitats of the world. The zooplankton diversity is one of the most important ecological parameters in water quality and biodiversity assessment because they are strongly affected by environmental conditions and respond quickly to changes in water quality. Zooplankton is the intermediate link between phytoplankton and fish. The qualitative and quantitative study of zooplankton is very importance in the plankton diversity. Hence the present investigation was carried out in the Thoppaiyar reservoir (Lat. 11°57’21”N and Long. 78°6’28”E) at Dharmapuri District, South India. The physico-chemical characteristics and zooplankton diversity were studied for a period of one year from December-2010 to November-2011. A total of 55 species of zooplankton were recorded, which includes 19 species of Rotifera, 13 species of Cladocera, 15 species of Copepoda and 8 species of Ostracoda. The population abundance of zooplan...
Zooplankton diversity and seasonal variation of Majalgaon Reservoir, Maharashtra State, India.pdf
The present communication deal with the study of Zooplankton diversity and seasonal variation in Majalgaon Reservoir was conducted to check the status in the area and provide new insightsinto its ecology. The study was carried out during the period of one annual cycle i.e. January 2014 to December 2014. A total of 23 species were found in this reservoir. Among these, rotifers comprise of 8 species (28.92%),Cladocera 6 (19.638%), Copepods 5 (20.09%), Ostracoda 2(19.317 %) and Protozoa 2 (12.02). The season wise zooplankton analysis showed that the number of population was highest during summer, followed by monsoon and lowest during winter. 723
2019
The seasonal diversity of different types of zooplankton was obserevedfor theHiran-II reservoir, Umerethi, Saurashtra region of Gujarat, India. The samples were collected from the surface water with the help of a plankton net having amesh size of 64 µm. The samples were preserved for further analysis. The zooplankton specieswere identified using key references. The zooplankton population showedthe correlation with the parameters of water temperature, dissolved oxygen, biochemical oxygen demand, hardness, alkalinity, phosphate, nitrate, total dissolved solids, total suspended solids, electrical conductivity, and transparency. The zooplankton was represented by 15% protozoa, 33% Rotifera, 46% Arthropoda and 6% Miscellaneous in the samples. The range of zooplankton recorded between 136 to 267no./l. The zooplankton density was minimum in January whereas the maximum was observed in October. This study may support to help towards the management of Hiran-II reservoir effectively in the region.
ZOOPLANKTON DIVERSITY IN SATHANUR RESERVOIR OF THIRUVANNAMALAI (TAMILNADU), INDIA
International Journal of Biological Innovations, 2020
The present investigation was an attempt to study the zooplankton community of Sathanur reservoir of Thiruvannamalai, Tamilnadu, India. The zooplankton species composition was studied for a period of one year from October 2018 to September 2019 on monthly interval basis. As a result of study, 24 zooplankton species were identified, out of which 9 were Rotifers, 7 Cladocerans, 5 Copepods and 3 Ostracodans. The overall population density of zooplankton was found maximum during the summer season and mininmum during monsoon. They play a supportive role in fish culture by recycling of nutrients and increase the soil fertility and involve in energy transfer between phytoplankton and fishes.
Diversity and seasonal variations of zooplankton in Jaisamand lake, Udaipur, India
Indian Journal of Animal Research, 2014
In the present work, seasonal variations of zooplankton and selected physico-chemical parameters were studied in Jiasamand Lake, a large man-made reservoir in Udaipur (Rajasthan). In the study period, 51 species of zooplankton-17 species of Rotifera, 18 species of Cladocera, 5 species of Ostracoda and 4 species of Copepoda were observed. Among zooplankton, Rotifera was (727 No.l-1) observed as the dominant group throughout the study period and the highest count was recorded in the summer or pre-monsoon period while low incidence was observed in winter season. Zooplankton community is also correlated with certain physico-chemical parameters. The results of this study indicate that the distribution and density of zooplankton species were influenced by prevailing physical and chemical factors of the aquatic environment.
Zooplankton diversity and seasonal variations were studied at three stations of Thandava reservoir to provide new insights into reservoir ecology and water quality. The study was carried out during the study period from Nov 2015 to Oct 2016. A total number of forty four zooplanktons both micro and macro species were identified in this reservoir at three stations. Among eight zooplankton groups, the diversity of rotifera comprise of 17 species (24.38%), cladocera 8 (17.63%), copepoda 5 (17.08%), ostracoda 2 (14.63 %), protozoa 3 (12.03%), crustacea 7 (11.18%), fish larvae and eggs 2 (03.08%). The number and percentage of zooplankton monthly population was highest 9.96% in during May 2016 and lowest 7.11% in November 2016. The group wise and season wise zooplankton mean diversity index was analysed and calculated, rotifera were highest (37.14%) in summer lowest (26.46%) in winter. Followed by cladoceran were highest (36.96%) and lowest (30.01%) in monsoon, followed by copepoda highest (39.40%) and lowest (28.61%), ostracoda highest (35.93%) and lowest (34.26%) in monsoon periods. Protozoa highest (41.80%) and lowest (27.77%), crustacea highest (41.01%) in monsoon and lowest (21.47%) in summer and Fish larvae and eggs highest (57.91%) in monsoon and lowest (16.02%) in summer. Shannon-Wiener index and Margalef's richness index (R1) results were calculated for zooplankton diversity in this reservoir.
Zooplankton Diversity of Bhogaon Reservoir in Parbhani District Maharashtra, India
https://www.ijrrjournal.com/IJRR\_Vol.3\_Issue.8\_Aug2016/Abstract\_IJRR0010.html, 2016
The paper deals with the study of zooplanktons of Bhogaon reservoir in Parbhani district of Maharashtra, India. Seasonal count of the zooplanktons is investigated for the period of two years from 2014 to 2015. The species of zooplanktons investigated are copepods, cladocera, ostracoda and rotifers representing the forms that are found in freshwater Bhogaon reservoir. Among the zooplanktons copepods are the most abundant, followed by rotifers, cladocera, while ostracoda are less in number as compared to others. It is observed that all the zooplanktons are found to be minimum in monsoon period and maximum in post-monsoon period during both the years 2014 and 2015.
Zooplankton Diversity in Madduvalasa Reservoir, India
The zooplankton diversity was studied in four stations at Madduvalasa reservoir during June 2014 to May '15 and forty five species were identified. Among eight groups, the diversity of Rotifera comprises of 17 species (21.37%), Cladocera 8 (16.44%), Copepoda 5 (17.28%), Ostracoda 2 (15.21 %), Protozoa 3 (12.24%), Crustacea 9 (11.26%), Mollusca 1 species (01.60%) respectively along with fish larvae and eggs (04.61%). The monthly and group wise zooplankton density analysed and found that the number was highest during summer followed by monsoon and lowest during winter.
ZOOPLANKTON DIVERSITY OF GARGA RESERVOIR OF BOKARO, JHARKHAND, INDIA
The present study is on “Zooplankton diversity of Garga Reservoir of Bokaro District (Jharkhand)”. The study was carried on from July’2012 to June’2013 at four selected sampling stations. Monthly variations and biodiversity indices of zooplanktons were observed. It revealed 11 different species of zooplanktons belonging to 4 different classes namely 3 rotifers, 4 cladocerans, 3 copepods and 1 ostracod. Among rotifers, Brachionus falacatus is abundant. Ceriodaphnia cornuta is predominant among cladocerans. Among copepods, numerical superiority was found in case of Nauplius. Ostracoda was represented by only one genus i.e. Stenocypris. Maximum percentage of Cladocera (34.89%) and minimum percentage of Ostracoda (6.77%) were observed. Margalef’s index (R1) and Menhinick index (R2) values (1.038 and 1.061) were found to be highest in April, 2013 and October, 2012 respectively. Lowest values (0.558 and 0.577) were found in July, 2012 and February, 2013. The Simpson’s index (n) varied from 0.222 in April’13 to 0.667 in July’12. The Shannon index (H’) was found to be in the range of 0.451 in July’12 to 1.355 in April’13.
Opuscula Zoologica
Nongmahir reservoir of Meghalaya state of northeast India (NEI), sampled at the littoral and limnetic regions, revealed fairly biodiverse zooplankton of total 56 species with peak consortium (52 species) in January collection from the littoral region. The richness indicated spatial monthly variations and heterogeneity at the two regions mainly influenced by Rotifera. The 'soft and de-mineralized waters' resulted in low zooplankton abundance. Copepoda > Rotifera with Cyclopidae > Brachionidae influenced zooplankton, and Mesocyclops leuckarti > Keratella cochlearis > Ascomorpha ovalis > Microcyclops hyalinus are notable species at the littoral region. The limnetic region recorded Rotifera dominance, and importance of Brachionidae > Cyclopidae and K. cochlearis > Conochilus unicornis >M. leuckarti >A. ovalis > Asplanchna priodonta > Polyarthra vulgaris. Zooplankton recorded moderate species diversity and notable differences of evenness and dominance. The spatial monthly differences of richness, abundance and diversity indices of zooplankton, and importance of notable taxa are hypothesised to habitat heterogeneity of the two regions. Our results also indicated limited and differential influence of individual abiotic factors on zooplankton taxa, while the canonical correspondence analysis registered high cumulative influence of 10 abiotic factors on the littoral (80.62%) and limnetic (74.79%) assemblages along axis 1 and 2. This study highlighted distinct temporal variations of different diversity parameters than our preliminary survey of June 1995-May 1996.