Study on Gross Primary Productivity, Fish Catch, Stocking and Management in Motial Lake Reservoir and Socio-Economic Status of Fishermen

Author: Sarita Kumari, Jawed Ahmed Khan and M. S. Thakur

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Abstract

This study was carried out in Motia Lake Bhopal, Madhya Pradesh, India for two years from 2011 to 2013 on the production and population of fishes. The three major carps such as Catla, Rohu and Mrigal were dominant and constitute about 81.66% (279.72 Kg/ha/yr) and 98.77% (352.49 kg/ha/yr) of total catch during the study period. The total fish productions were found to be 264.65 and 283.00 Kg/ha/yr during 2011-12 and 2012-13, respectively. In the fish catches, rohu (Labeo rohita) was the major species followed by catla (Catla catla), common carp (Cyprinus), mrigal (Cirrhinus mrigala) and grass carp (Ptenopharyngodon idella). The average stocking rate of major carps was recorded to be 25155.76 numbers each year. Among the stocked species, catla, rohu and common carp were found thriving well in the Motia Lake. The fish production was found to be stocking density dependent. Further, the production of 1 Kg fish, stocking density requirement of 66 was observed in lake. The socio-economic sur

Keywords

Primary productivity, fish catch, stocking, fish yield, Socio-economic status

Conclusion

In the present study the carps such as Catla, Rohu and Mrigal were found in dominance during the study period. The total fish productions were found to be 264.65 and 283.00 Kg/ha/yr. The average stocking rate of carps was found 25155.76 in each year. Among the stocked species, catla, rohu and common carp were found thriving well in the Motia Lake. The fish production was found to be stocking density dependent. The socio-economic survey of lake showed that the fishery is not only a profitable business but also helpful in improving the nutritional status of fish eating population of Bhopal. It was inferred that about 90% houses of fishermen have not minimum facilities such as kitchen, bathrooms and lavatories.

References

India’s inland water bodies are diverse and important source of food and also provide employment for the people of rural India. India is the second largest producer of Inland fishes. At present, about 80% of inland fish produced in India is derived from aquaculture and 22% from capture fisheries. Reservoir constitutes a single largest inland fishery resource, in terms of production and size. These made ecosystem offer enough scope for stock manipulation through ecological maneuverings paving the way for production hikes at relatively low capital investment. Majority of reservoirs in our country are no scientifically managed. The area under fresh water aquaculture in the form of lakes was estimated to be about 2.85 million hectare (Piska, 2000). According to report of UNESCO (1978), water reservoir area was found about 6,00,000 Sq. Km. Sugman, (1995) has estimated total of 19,370 reservoirs in India with total area of 3.15 million hectare. It has been reported that the average India

How to cite this article

Sarita Kumari, Jawed Ahmed Khan and M. S. Thakur (2017). Study on Gross Primary Productivity, Fish Catch, Stocking and Management in Motial Lake Reservoir and Socio-Economic Status of Fishermen , Biological Forum – An International Journal 9(2): 248-