Research Journal of Recent Sciences ______ ______________________________ ______ ____ ___ ISSN 2277 - 2502 Vol. 4 ( I YS C - 201 5 ), 70 - 73 (201 5 ) Res. J. Recent . Sci. International Science Congress Association 70 Analysis of Some Zooplanktons with respect to Seasonal Variation from River Vena Distt. Nagpur, Maharashtra , India Gharpure Varsha L 1 and Bhatkulkar Manisha 2 1 Jawaharlal Nehru Vidyalaya, and Junior College, Wadi, Nagpur , MS, INDIA 2 Jawaharlal Nehru Arts, C ommerce, and Science College, Wadi, Nagpur , MS, INDIA Available online at: www.isca.in , www.isca.me Received 30 th July 201 5 , revised 27 th August 20 1 5 , accepted 11 th September 20 1 5 Ab stract Zooplankton plays an important role in the early monitoring and detection of water density and the pollution. They also detect the absence or presence of certain species of larvae and fishes. Zooplanktons occupy the major role of primary consumer in the aquatic food web. The present piece of work has been made to investigate the density of Zooplanktons in Vena River. Analysis of Zooplankton has been carried out at 4 site of Vena river samples were collected monthly. Population of Zooplankton is repre sented by group’s viz. protozoa, Copepoda, Cladocera and Rotifera. The present investigation was recorded the maximum of Zooplankton in the month of February and minimum density of Zooplankton in the month of March. Density fluctuation was seen due to the concentration of water, Temperature fluctuation, industrial and domestic sewage. Keywords: Analysis, z ooplankton, population , density, Vena River . Introduction God has created the most wonderful and unusual compound in nature i.e., “Water”. It is an a bundant and most useful chemical compound gifted with physico - chemical properties and unique characteristics. It is essential for the survival of all organisms on the planet earth. The word plankton was derived from the Greek word planktons meaning the w ander and weak swimming movement of organisms. Planktons can be divided into two i.e., animals or zooplankton and plants or phytoplankton Anita Slotwinski 1 . Zooplanktons are occupying the role of primary consumer in the aquatic food web. Primary consumer i t autotrophs and they obtain their energy from inorganic sources. Some zooplanktons become the food of fishes. Zooplanktons constitute an important food item of many Omnivorous and Carnivorous fishes. The larvae of carps will feed mostly on zooplanktons. Zooplanktons also play a very important role in the food chains but they are from second trophic level. Material and Methods The samples for Zooplankton analysis were collected from four sites i.e., Site A, Site B, Site C and Site D of Vena River at ever y month from June 2013 to May 2014. For Zooplankton analysis 50 liters volume of water samples was collected and passed through plankton net. Plankton net is made up of silk bolting cloth No. 25 and gets a 30 ml of concentrated water sample. Then 30 ml of water sample was preserved in 5% formalin solutions. Water samples were collected from 7.00 am to 9.00 am. The Zooplanktons quantitative analysis was carried out with the help of S. R. Cell. Zooplanktons were identified and observed under the electron mic roscope by using a standard key and literature of Kodarkar 2 . Zooplanktons were calculated by using a formula Where, n= No. of Zooplankton / liter of water . a= No. of Zooplankton in 1 ml. c= ml. of plankton concentrate . l= Vol. of original w ater sample taken Results and Discussion According to the findings and the present study results in summer season, the Zooplanktons community how total 20 species resulted . Out of which 03 taxa of Copepoda, 10 taxa of cladocera and 07 taxa of Rotifera wer e found in Vena river of Nagpur region. Quantitative analysis of Zooplanktons for summer seasons of investigation presented in table 1, 2, 3 and 4. Average result of quantitative analysis Zooplankton presented in table - 5. Qualitatetive analysis of Zooplank ton investigation presented in table. Protozoa : The present study reports of Zooplankton showed that not a single species of protozoans were found. Copepoda : Several workers have studied the seasonal variations of copepods in water bodies of India. They are the primary food source of planktonivorous fishes and hence Research Journal of Recent Sciences ______ _ _ _______________________________ ______________ _ ________ ISSN 2277 - 2502 Vol. 4 ( I YS C - 201 5 ) , 70 - 73 (201 5 ) Res. J. Recent. Sci. International Science Congress Association 71 constitute an essential link with food chain. As the pollution level increased the copepods they get dissappred in stable environmental conditions. In the present investigations copepods were recorded in summer seasons and they are maximum in the month of March at site - A Cladocerons : This group of Zooplankton plays an important role in the benthic growth. They are the primary consumers which feed on microscopic algae and fine particulate matte r in the detritus. In the present investigations claodcerons were recorded maximum in the month of February at site - D Rotifers : Rotifers are considered as the most important Zooplanktons and this is one of the oldest group commonly termed as wheel animalc ule. Rotifers have the ability to change the water quality and respond more quickly to the environmental changes amongst the Zooplanktons. The present investigation of summer seasons, they were recorded maximum in the month of February at site – A. Figure - 1 Figure – 2 Figure – 3 Figure – 4 Eurycercus Bosmina Herringia Keratella Sp. Figure – 5 Figure – 6 Figure – 7 Figure - 8 Nauplius Cyclops Alonella Diaphanosoma Table – 1 Quantitative analysis of Zoopla nkton (ORG/L) at different station in summer season of Vena river (Month - February) Sample No Location Zooplankton no./m³ Copepoda Cladocera Rotifera SWI 1 Site – A 513000 41% 40% 19% 1.514% 2 Site – B 25800 55% 34% 11% 1.366% 3 Site – C 29400 56% 29% 1 5% 1.398% 4 Site – D 15600 40% 58% 02% 1.096% Table – 2 Quantitative analysis of Zooplankton (ORG/L) at different station in summer season of Vena river (Month - March) Sample No Location Zooplankton no./m³ Copepoda Cladocera Rotifera SWI 1 Site – A 2016 00 89% 10% 01% 0.531% 2 Site – B 51000 80% 18% 02% 0.808% 3 Site – C 30300 55% 43% 02% 1.109% 4 Site – D 25500 35% 53% 12% 1.380% Research Journal of Recent Sciences ______ _ _ _______________________________ ______________ _ ________ ISSN 2277 - 2502 Vol. 4 ( I YS C - 201 5 ) , 70 - 73 (201 5 ) Res. J. Recent. Sci. International Science Congress Association 72 Table – 3 Quantitative analysis of Zooplankton (ORG/L) at different station in summer season of Vena river (Month - April) Sample No Location Zooplankton no./m³ Copepoda Cladocera Rotifera SWI 1 Site – A 21300 56% 30% 14% 1.369% 2 Site – B 20100 54% 31% 15% 0.808% 3 Site – C 36300 85% 14% 01% 0.881% 4 Site – D 13500 56% 33% 11% 1.351% Table – 4 Quantitative analysis of Zoo plankton (ORG/L) at different station in summer season of Vena river (Month - May) Sample No Location Zooplankton no./m³ Copepoda Cladocera Rotifera SWI 1 Site – A 59400 58% 25% 16% 1.387% 2 Site – B 33300 59% 27% 14% 1.346% 3 Site – C 292200 79% 10% 1 1% 0.933% 4 Site – D 14700 59% 24% 17% 1.362% Table – 5 Average result of Quantitative Analysis of Zooplankton Sample No Location Months Zooplankton no./m³ Copepoda Cladocera Rotifera SWI 1 Site – A February 198825 61% 26% 13% 1.200% 2 Site – B March 3 2550 62% 28% 11% 1.082% 3 Site – C April 97050 69% 24% 07% 1.080% 4 Site – D May 17325 48% 42% 11% 1.297% Qualitative Analysis of Zooplankton Sr. No. Order Name of Species 1 Copepoda Cyclops , Nauplius , Diaptomus 2 Cladocera Alonella , Daphnia , Comptocercus , Diaphanosoma , Eurycercus , Moina , Bosmina , Alona , Ceriodaphnia , Polythemus 3 Rotifera Brachionus bidentata, Keratella, Herringia, Filinia logiseta, Brachionus angularis, Filinia, Keratella tropicana Conclusion The above s tudy shows the variation in zooplanktons with respect to density, which was recorded maximum in the month of February due to favourable temperature. Temperatures are favourable for phytoplanknonic growth and as a abundance of food. Whereas the minimum de nsity of Zooplankton was recorded in the month of May due to rising temperature, domestic sewage, industrial sewage and concentration of water. Reference 1. Slotwinski Anita, Guide to the marine Zooplankton, South Eastern America, 1 - 8 (2008) 2. Kodarkar M.S., M ethodology for water analysis, Physicochemical, Biological, Microbiological IAAB, Hyderabad, Pub - 2, (1992) 3. Khinchi P.J., Variations of Hora and fauna in Junona lake of Chandrapur with respect to Physicochemical parameters, (2009) 4. Telkhade P.M., Dahegaonka r N.R. and Lonkar A. N., Quantitative Analysis and phytoplankton and Zooplankton of Masale lake, Masales, Dist: Chanadrapur, Envirn. Cosr. Jour, 9 (1 and 2), 37 - 40 (2008) 5. Ray H.K. , Plankton, Ecology, 36(2), 169 - 175 (1955) 6. Telkhade P.M., Dahegaonkar N.R., K inchi P.J. and Zade S.B., Zooplankton diversity of Tadoba lake, Tadoba Andhari Tiger Reserve (TATR) Dist: Chandrapur (M.S.) , Env. Cons. Jour, 9(3), 65 - 68 (2008) 7. Edmondson W.T., Fresh water Biology, II Ed. J W and sons, New York, (1959) Research Journal of Recent Sciences ______ _ _ _______________________________ ______________ _ ________ ISSN 2277 - 2502 Vol. 4 ( I YS C - 201 5 ) , 70 - 73 (201 5 ) Res. J. Recent. Sci. International Science Congress Association 73 8. Dussart B.H. and Def aye D. Introduction to the copepod, SPB Academic Publishing Amusterdam , 7, 277 (1995) 9. Frenchel T., Ecology of protozoa. The biology of free living phagotrophicprotists sciencetech pubilhers Madison , 197 (1987) 10. Kodarkar M.S., Methodology for water analysis of physic - chemical, biological methods, IAAB, Hydrabad , Pub - 2 (1992) 11. NEERZ, Manual of water and waste water Analysis, NEERI, Nehru Marg, Nagpur India, (1986) 12. Barma S.S.S., Elias – Gutierrez M. and Carmen – 5 to 50 , Hydro biological , 6, 33 - 38 (1961) 13. Wetzel R.G., Limnology, W.B. Saunders Company, Phildelphia, 743 (1975) 14. Zafar A.R. , Hydrobiologia 138, 177 - 187 (1986)