Urban lakes in India: Conservation, management and Rejuvenation
THERMAL ECOLOGICAL STUDIES AT
RANA PRATAP SAGAR
P.C. Verma, L.L. Sharma1, N.Sarang & Anil Kumar and A.G. Hegde
College of Fisheries, MPUAT, Udaipur (Rajasthan)
Abstract
This paper presents the results obtained on thermal ecological studies carried out at Rana Pratap Sagar (RPS) Lake during 2002-2004. The study includes monitoring of several water quality parameters, biological and bacterial parameters and data on thermal stratification in respect of RPS reservoir. The study reveals that the RPS water is nearly homogeneous and shows weak thermo cline and chemo cline patterns. Based on monitoring data, the reservoir can be assigned mild eutrophic status.
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J.Aqua.Trop 17(1)(2002)
EXPERIMENTAL MANIPULATION OF SEX IN CYPRINUS CAPRIO VAR. COMMUNIS BY ORAL ADMINISTRATION
OF TESTOSTERONE UNDECANOATE
R. Bharadwaj and L.L. Sharma
Dept of Limnology & Fisheries, RAU, Udaipur
ABSTRACT
The present study was carried out to elucidate the effects of Testosterone undecanoate (TU) on sex ratio and Gonadosomatic index (GS) of common carp, Cyprinus carpio var. communis. The androgen was orally administered in three dose levels i.e. 200, 400 and 600 ppm per kg feed to 10 days old hatchings for 30 days. Fishes fed with T.U., 400 ppm resulted in 78% sterility and 19% males. The Gonadosomatic indices of sterile fishes were significantly lower (P < 0.01) than the male and female fishes of the same treatment group. This hormone was also found more economical at the recommended dose i.e. 400 ppm/kg feed, compared to some other prevalent hormones, used for the purpose of inducing sterility and maleness.
Key words: Cyprinus carpio, Testosterone undecanoate, Gonadosomatic index.
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Applied Fisheries & Aquaculture 2001, Vol.1 No.1
Stomach Contents of Tilapia (Oreochromis mossambicus)
from Lake Jaisamand, Udaipur (Rajasthan)
with particular reference to carp fishery
N.C. Ujjania, L.L. Sharma & V.P. Saini
Dept of Limnology & Fisheries, RAU, Udaipur
ABSTRACT
Stomach contents of the Tilapia from commercial catches of Lake Jaisamand, Udaipur were analyzed during fishing year 1996-97. In this Lake the species was found to feed mainly on phytoplankton (filamentous algae 5-10%, cellular algae Anacystis, 50-60%), zooplankton (10-15%) and other food items like plant tissue, insects etc. (20-30%). The amount of feed consumed varied in different samples, thus indicating the lack of preference for a particular type of diet. Further, the gastrosomatic index for different size groups ranged between 0.909 to 2.619. On the basis of this study it can be inferred that being omnivorous in feeding habit the food chain of Tilapia overlaps with those of indigenous economically valuable carps and thus likely to affect age old traditional carp fishery. Appropriate remedial measures for sustaining carp fishery needs to be adopted.
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The Fourth Indian Fisheries Forum Proceedings
24-28 November, 1996, Kochi 0.241-243
Published in 1999
Use of Herb (Asparagus racemous Wild) Supplemented Diet
for Promoting Growth in the Fry of Labeo rohita
K. kavita and L.L. Sharma
Dept of Limnology & Fisheries, RAU, Udaipur
ABSTRACT
Satavri (Asparagus recemous Wild) herb is widely used as Ayurvedi medicine for growth and vigour as it enhance general metabolism. The conventional fish diet (@6% body weight per day (bwpd) was supplemented@ 0.1, 0.2 and 0.3 gm/kg bwpd and fed to fry of Labeo rohita (average initial weight 0.546 gm) in cement cisterns (200 l capacity). Satavari dose @ 0.2 gm/kg bwpd gave the higher (119.6%) weight increment in fry reared for 45 days. The weight increments at the doses of 0.1 and 0.3 gm/kg bwpd were 69.63% and 57.29% respectively. In control, the weight gain was 30.4%. ANOVA indicated with average weight gain and growth / day were3 significantly higher (P < 0.05) in all the treatments compared to control. Highest Sp. growth corresponds with lowest FCR and maximum GCE
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Indian J. Fish,51(4): 501-504, Oct-Dec, 2004
Use of herb, Bala (Sida cordifolia Linn.) as growth
promoter in the supplementary feed of
Cirrhinus mrigala (Ham.)
Dalveer Kour, L.L. Sharma and B.K. Sharma
Dept. of Aquaculture, College of Fisheries
MPUAT, Udaipur
ABSTRACT
A feeding trial was conducted on Indian major carp, Cirrhinus mrigala (Ham.) to evaluate the impact of the herb, Bala (Sida cordifolia) mixed with conventional diets of fish (groundnut oil cake and rice bran in 1:1) in the glass levels (excluding control) i.e. 0.06 (B1), 0.10 (B2), 0.14 (B3) and 0.18 (B4) gm/kg body wet/day and control diet was kept without herb. Experimental diets including control were fed @ 2% body weight of fish per day for 60 days. Fingerlings fed with diet B3 containing Bala @ 0.14 gm/kg body weight/day indicated relatively better growth in terms of weight gain to the extent of 26.50% whereas fingerlings fed with B1, B2, B4 and C (control) diets showed the weight gain of 18.00, 20.94, 25.54 and 12.22% respectively. The growth per day in per cent body weight, FCR, GCE and SGR were also superior with herb supplemented diets as compared to the control.
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Indian J. Fish., 47(4):377-381, Oct-Dec., 2000
Effect of methyl testosterone (tablets) in
sterilization and masculnization of common carp,
Cyprinusa carpio communis (L)
R. Bharadwaj and L.L. Sharma
Dept. of Limnology & Fisheries, RAU, Udaipur
ABSTRACT
Laboratory bred hatchings of Cyprinus carpio communis (L) were subjected to 30 days hormone treatment using methyl testosterone. The specimens treated with 600 ppm per kg of fish, which appeared to be the optimum dose, after a rearing period of 240 days were found to retard development of ovary and testis thus making 74.45% of the fishes sterile.
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Indian J. Fish., 47(1):103-105, Jan.-Mar., 2000
A Convenient field device for measuring volume of
aquatic organisms for weight estimation
L.L. Sharma, C.B. Sajni, S.K. Sharma and V.P. Saini
Dept. of Limnology & Fisheries, RAU, Udaipur
ABSTRACT
A simple device has been proposed for estimating live weight of aquatic organisms such as macroinvertebrates and fish spawn. With the use of this device the volume of aquatic organisms is determined from which the weight is calculated. In view of simplicity and easy operation, the device is useful in the field conditions.
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Indian J. Fish., 463):295-300, Jul.-Sep., 2000
Use of Sewage Sludge as Supplementary Diet
for the carp, Cyprinus carpio (L)
V.P. Saini and L.L. Sharma
Dept. of Limnology & Fisheries, RAU, Udaipur
ABSTRACT
Sewage sludge – a common urban refuse was tried as supplementary feed for the fish (Cyprinus carpio L average weight 4.9 g) @ 0, 50, 75 and 100%. The fish was raised on the experimental diet in plastic containers of 65.1 capacity for 60 days. Common carp fed on 100% sewage sludge failed to indicate appreciable growth. However, partial replacement (\50%) was favourable and resulted in high growth (4.58 g). Fish reared with 50% sewage sludge supplemented diet also attained high (9.12%) protein level (wet weight basis) as compared to control (9.05%) and other treatments. The bacterial load in the selected body tissues was well below the safe levels prescribed by WHO for human consumption. The values of total coliforms, faecal coliforms, E. coli and streptococci ranged between 0-7, 0-3, 0-1 and 0-3 MPN/g respectively in fish skin and muscles.
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Ecol.Env.& Cons.4(4): 1998; pp. 211-214
Biological Production in a Sewage Fed Pond
of Udaipur (Rajasthan)
R. Bharadwaj and L.L. Sharma
Dept. of Limnology & Fisheries, RAU, Udaipur
ABSTRACT
The paper describes physico-chemical and biological conditions in a fish pond. Orthophosphate values were found to be higher than the nitrate-nitrogen values cyanophycean algae were found to be dominant phytoplankton. Among the zooplankton, copepods were found to be contributing to 60% population.
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Poll.Res.10(3): 173-18, 1991
Comparative Physico-Chemical Limnology of Lakes Pichhola and Fatehsagar, Udaipur (Rajasthan)
Surendra Kumar and L.L. Sharma
Dept. of Limnology & Fisheries, RAU, Udaipur
ABSTRACT
Physico-chemical limnology of two lakes of Udaipur, Rajasthan was studied during June-August, 1987 representing late summer and monsoon periods. The comparative data on physico-chemical factors such as pH, dissolved oxygen, electrical conductance, total alkalinity and nitrates in both the water bodies were more or less the same and thus find limited use for comparing trophic status of water bodies in question. The orthophosphate concentration, however, indicated notable difference in the two lakes and justified higher productivity status of Pichhola than Fatehsagar and thus could serve as an important index of assessing trophic level besides productivity data.
Key words: Freshwater ecology, limnology, physico-chemical factors.
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J. Hydrobiol. Vol.II, pp.17 to 24, 1991
Portability of Bore-well Water in Udaipur City (Rajasthan)
B.K. Sharma, L.L. Sharmam V.S. Durve
Dept. of Limnology & Fisheries, RAU, Udaipur
ABSTRACT
The present study describes the water quality of Bore well water of Udaipur city. The result of the bacteriological study exhibited high total coliform count (817 MPN/100 ml) in the first category and the lowest (308) in the third category. The faecal coliform, however, showed an interesting result of lowest value (19 MPN/100 ml) in highly polluted area (second category). These results clearly indicate that Bore-well water of Udaipur is not free of contamination as seen by the presence of total and faecal coliform and horides.
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J. Hydrobiol. Vol.3 No.5, pp.25 to 28, 1987
Water Quality and Zooplankton Production in Waters Fertilized on the Basis of P:N Ratios
O.P. Sharma, V.K. Rajbanshi and L.L. Sharma
Dept. of Limnology & Fisheries, RAU, Udaipur
ABSTRACT
The action of two fertilizers mixed to get different ratios of P:N as Q:1, 1:2, 1:4 and 1:8 were investigated in cement cisterns. The former was single superphosphate fertilizer having P as 16% P2O5 while the latter) ammonium nitrate) contained 26% nitrogen. The results of the experiments showed that the 1:4 ratio of P:N produced greater numbers of total zooplankton dominated by cladocerans. Interestingly, no rotifers were observed throughout the experimental period. Results also showed that addition of higher amount of nitrogen in waters is merely a wastage of the nutrient elements. Thus, it seems that the fertilizers containing P and N in the ratio of 1:4 would be an efficient chemical fertilizer for the production of cladocerans
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Research and Industry, Vol.21 No.2, pp.93-94, 1976
Improved Under-water Sampler for Limnological Work
V.S. Durve and L.L. Sharma
Dept. of Limnology & Fisheries, RAU, Udaipur
ABSTRACT
An improved under-water sampler for recording under-water temperatures and for collecting water samples for the estimation of dissolved gases has been designed and fabricated. It has been successfully used to a depth of 50 ft. It costs much less (Rs.83) compared to conventional devices (Rs.500-1000).
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Baroda, Nov 30-Dec-2.,1984
Changing Udaipur Environment:
A Case Study of Selected Aspects
L.L. Sharma
Dept. of Limnology & Fisheries, RAU, &
Secretary, Udaipur Environmental Group, Udaipur
ABSTRACT
Udaipur city lies between 75'42' E longitude and 24.34N latitude in a saucer shaped valley surrounded by the hills of Aravali chain. The average rainfall is 700 mm and once upon a time had a dense forest as a natural resource. Availability of flat land is a rarity. Being sloppy land, such a physical configuration makes only 1/5 of land available for cultivation. At times very useful agricultural land has been used for the urban growth. The area of old city is heavily crowded and people are living under sub-human conditions.
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Indian J. Fish, Vol.35 No.1 pp.7-12, 1988
Utility of Electrophoresis in Nursery Management
Strategy: Impact of Fertilizers on Zooplankton Succession and Growth of Cirrhinus mrigala (Ham.)
P. Jayapala, V.K. Rajbvanshi, L.L. Sharma and O.P Sharma
Dept. of Limnology & Fisheries, Sukhadia UniversityUdaipur
ABSTRACT
In the present investigation, the survival and growth of C. mrigala spawn were correlated with zooplankton succession through fertilization programme. A new approach of studying protein levels through gel electrophoresis ahs been adopted with success. The reasons for poor survival and growth have been discussed and alternative nursery management strategy has been suggested to match the succession of zooplankton as per the requirement of spawn.
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Fishing Chimes, March 1992
Dry Bundh Breeding in Rajasthan: Case Study
L.L. Sharma Shakir Hussain
Dept. of Limnology & Fisheries, RAU, Udaipur
ABSTRACT
In the present study it is felt necessary to make a fresh approach in standardizing the methodology of dry bundh breeding suitable under the agro-climatic conditions of Rajasthan. Efforts to produce quality fish sewed are made using available resources. Seasonal waters could be appropriately used for this purpose for boosting aquacultural activities in this state.
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The Academy of Environmental Biology, Mussaffarnagar,
108, Dec. 26-28, 1986
Role of Eco-development camps in Popularizing
Non-formal Environmental Education and
Environmental Conservation
L.L. Sharma
Dept. of Limnology & Fisheries, Sukhadia University, Udaipur
ABSTRACT
Based on a few case studies, the activities of eco-development camps have been discussed in this paper with particular reference to non-formal environmental education. Organizational aspects such as preparation of camp programme and follow-up action have been covered for a specific taqr4get group. Out come of such ecodevelopment camps, importance of field biological investigations has also been stressed for increasing awareness at different levels. Effective monitoring system is proposed to have the best advantage of such education programmes.
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The Academy of Environmental Biology, Mussaffarnagar,
109, Dec. 26-28, 1986
Trends in Fishery of Lake Jaisamand, Rajasthan
with reference to opportunities
for augmenting the fish production
L.L. Sharma and C.S. Choudahry
Dept. of Limnology & Fisheries, Sukhadia University, Udaipur
ABSTRACT
With a water spread of 7286 ha and a maximum depth of 32 meters, Lake Jaisamand is the largest sheet of water in southern Rajasthan. Once supporting a lucrative major carp fishery, indiscriminate fishing for a long period has changed the productivity structure of this lake. Due to lack of appropriate reservoir management strategy, the important major carp fishery has dwindled with appreciable rise in minor carps and cat fishes in the catch. The paper highlights necessary conservation measures for full utilization of productivity potential of this lake.
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Strategy for Water Quality Management
in Udaipur Lakes
L.L. Sharma
Dept. of Limnology & Fisheries, RAU, Udaipur
ABSTRACT
For sustained use of Udaipur Lakes there is need for consolidated efforts by admonition, NGOs and citizens of Udaipur.
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J.Inst.Sc.Tech., Vol.6, pp-91-96, 1983
Growth of Common Carp (Cyprinus carpio communis L.)
in Waters Fertilized with NPK
O.P. Sharma, L.L. Sharma, V.K. Rajbanshi and S.B. Karki
Dept. of Limnology & Fisheries, Sukhadia University, Udaipur
ABSTRACT
Growth studies were made for a period of 28 days for common carp fry stocked after 14 days of the day of fertilization. The waters were fertilized with varying doses of NPK mixture (18:18:10). The growth was directly proportional to the amount of fertilizer added. However, unfertilized cisterns indicated lowest fish growth. The survival was cent per cent in all the cisterns and Duncan's New Multiple Range Test revealed that the growth of fish in control differed significantly from that of the growth in treated cisterns (P < 0.01).
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National Symposium on Fish and Their Environment,
113, GKU, Haridwar Dec. 15-18, 1986
Diurnal Variation in Selected Limnological
Parameters in Lake Fatehsagar, Udaipur
Sharma, L.L., Sharma, M.S. and Durve, V.S.
Dept. of Limnology & Fisheries, Sukhadia University, Udaipur
ABSTRACT
Diurnal variations in selected limnological parameters were studied on three occasions in a man-made lake of Udaipur. On the basis of depth wise sampling at the deepest part of this lake and on the spot analysis for pH, dissolved oxygen, carbon dioxides, alkalinities etc. an attempt has been made to synchronize these factors with the diurnal periodicity of plankton.
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National Symposium on Fish and Their Environment,
129, GKU, Haridwar Dec. 15-18, 1986
On the Performance of Common Carp Cyprinus carpio communis (L.) in Some Fish Ponds of Udaipur
Sharma, L.L., Rajbanshi, V.K., Sharma, O.P. & Jayapala, P.
Dept. of Limnology & Fisheries, Sukhadia University, Udaipur
ABSTRACT
Experimental culture of common carp C. carpio communis was attempted in three fish ponds of Udaipur to assess the performance of this exotic carp under the agro climatic conditions of southern Rajasthan. The growth increment and condition factor data obtained have been used to evaluate the performance of this carp. Salient hydrobiological factors of fish ponds have also been observed and correlated with the performance of this fish. It was observed that even under same agroclimatic conditions; the water qualities directly determines the organoleptic properties of this fish and subsequently affect consumer's preference and market value.
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Workshop held at Indian national Science Academy, Bhimtal
Environmental Problems of Udaipur
Madhu Sudan Sharma & Laxmi Lal Sharma
Udaipur (Rajasthan)
ABSTRACT
Udaipur district is essentially a forest and a supporting water region: mineral resources are ample; fishery resources can be suitably developed. An organized maintenance and development of the old city of Udaipur is an important necessity from the point of view of civic amenities and cultural progress of the citizens.
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Poll Res. 13(2); 169-179, 1994
Some Aspects of Limnology of Amarchand Reservoir, District Rajsamand, Rajasthan: Physical Parameters
L.L. Sharma and M.C. Gupta
Dept. of Limnology & Fisheries, RAU, Udaipur
ABSTRACT
Key words: Limnology, Water quality, planktons.
A perennial reservoir in the southern Rajasthan was studied for selected limnological aspects viz temperature, turbidity and humidity to assess role of these factors on the overall productivity status. Air temperature fluctuated between 13.4 to 41.7oC at reservoir site during study period (Dec. 90 to Nov. 91). Water temperature varied between 14.50 to 38.60 considering the entire water body. The vertical gradient in temperature was 2oC thus exhibiting a weak thermal stratification. Based on thermal characters it is presumed that mixing occurs frequently but only partially. Complete mixing occurs only during winter, thus indicating a situation of monomictic-cum-meromictic. Water clarity values between 66.0 – 336 cm indicate comparatively clear water status and the reservoir can be placed under mild-eutrophic category following classification on the basis of water clarity. Inter-relations of temperature and turbidity have been discussed in the paper.
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