Diversity and seasonal variations of zooplankton in Jaisamand lake, Udaipur, India (original) (raw)
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Zooplanktons are microscopic organisms that have a criticcal role in aquatic ecosystems. Zooplanktons are indicators of water quality and purity of aquatic ecosystems. The present study was carried out to study the species diversity and their seasonal changes in fresh water lake ecosystem located in semi-arid region of Karnataka. The study was conducted across the seasons of the year 2012. A standard methodology was followed during this study and the samples were collected during various seasons from the studied aquatic ecosystem. We recorded a total of 22 species of zooplanktons during the study period. Phylum Rotifers comprises 15 species, Cladocera 3, Copepoda 3 and Ostrocoda 1 species. A season wise analysis shows the maximum number of species during summer and the minimum number of species in rainy season. Species density was recorded high during summer season as compared to rainy season. The lake is shelter to many migrating bird species, fishes, aquatic plants and other insects. The lake is surrounded by human settlements and is prone to pollution due to several activities viz. washing clothes, bathing animals, dumping domestic waste and other similar activities. In this regard, urgent actions are required to conserve the aquatic biodiversity of this lake.
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...
Int. J. of Life Sciences, Special Issue A6 | February, 2016
Zooplankton is free swimming microscopic animals play an integral role in transfer of energy to the consumers and form second tropic level in the energy flow. Total 19 species are reported of which Rotifer 10 species, Cladocera 4 species, Copepoda 4 species, Ostracoda 1 species and Naupliusalso found in the study area.Rotifera was most dominant group observed throughout the study period.Zooplanktons studied with respect to species diversity and the season wise analysis was recorded in Bhiwapuir Lake. The present study revealed that it is good source for Aquaculture. Keywords: Zooplankton,microscopic, energy, dominant, Aquaculture.
Zooplankton acquire central place in food chain which are found in various strata of trophic level including herbivores and carnivores. Studies on zooplankton of Katphal Lake were undertaken for one complete year from January 2014 to December 2014. Out of the total 20 species recorded during the study, 10 belonged to Rotifera, 5 to Copepoda, 4 to Cladocera and 1 to Ostracoda. Rotifera was the most dominant group throughout the study period. Seasonal variations were observed in the distribution of zooplankton. Seasonally, the number was highest during summer, followed by winter and lowest during monsoon.
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
2014
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...
Diversity of zooplankton in a Perennial Lake at Sulur, Coimbatore, India
In the present study, diversity of zooplankton was correlated with physico-chemical characteristics of a perennial lake at Sulur (Lat. 11º01'40" N and Long. 77º07'20" E), Coimbatore, India. In order to assess its suitability for inland aquaculture, the study was conducted for a period of one year from December 2011 to November 2012 in four seasons, like post-monsoon, summer, pre-monsoon and monsoon. A total of 34 zooplankton species was identified qualitatively, which includes 11 species of rotifera, 10 species of cladocera, 7 species of copepoda and 6 species of ostracoda. The mean population of each zooplankton groups from all the seasons was recorded in the following order, rotifers (734 ind./l) > copepods (586 ind./l) > cladocerans (583 ind./l) > ostracods (147 ind./l). This study revealed that the zooplankton productivity was found to be maximum during summer season (2804 ind./L), followed by pre-monsoon (1961 ind./L), post-monsoon (1800 ind./L) and monsoon (1638 ind./L). The population of zooplankton was positively correlated with various physico-chemical parameters, such as water temperature, pH, salinity, dissolved oxygen, total dissolves solids and electrical conductivity of the lake water. Regarding species diversity, some degree of difference was seen in the Shannon (H) diversity index value between different zooplankton groups in summer (rotifer, 2.212; cladocera, 2.195; copepod, 1.851; ostracoda, 1.763). Since zooplankton, both in number of species and population was abundant in the Sulur Lake, there is possibility for continuous utilization of this water body for inland aquaculture.
Journal of entomology and zoology studies, 2017
In order to assess the suitability of the Hale Dharmapuri lake (Latitude 12o8’ 54”N and Longitude 78o10’ 38”E) of Dharmapuri town (Tamil Nadu, India) for inland aquaculture, this study was conducted for a period of one year (March 2015 – February 2016) under four seasons, post-monsoon, summer, premonsoon and monsoon. A total of 29 zooplankton species were identified qualitatively, which includes 10 species of Rotifer, 8 species of Cladocera, 6 species of Copepoda and 5 species of Ostracoda. The mean population of each zooplankton groups from all the seasons recorded was in the following order, Rotifers > Cladocerans > Copepods > Ostracods. This study revealed that the zooplankton productivity was found to be maximum during summer season, followed by pre-monsoon, post-monsoon and monsoon. The population of zooplankton was positively correlated with various physico-chemical parameters, such as water temperature, pH, salinity, dissolved oxygen, total dissolves solids and elect...
2015
The seasonal changes in zooplankton population of Alwara lake Kaushambi, Uttar Pradesh from January 2012 to December 2012 was determined. In the study period authors have recorded 24 species of which, 10 species belong to Rotifera, 6 species belong to Cladocera, 5 species belong to Copepoda and 3 species of Ostracoda. Among zooplankton, rotifer was dominant throughout the study period and highest count was recorded in the summer season while low incidence was observed in monsoon season. Zoobenthos showed distinct quantitative variations. Number of Zoobenthos increased in the summer months while decreased in the winter months. Different groups of zoobenthos exhibited their distinct peaks in different months of the year.