Ecology and Partial Restoration of Daha River for Fish Productivity

Main Article Content

Chandra Bhushan Tiwary

Abstract

Daha river, a threatened water body of polluted nature in the Gopalganj district of Bihar was studied for its degradation and possible restoration. The study reveals high rate of sedimentation and agricultural activities, changes in water quality and biotic community. Agricultural activities have led to high input of nitrogen (N) and phosphate (P) fertilizers along with pesticides being used by the farmers. The positives response of restoration practices was observed with partial improvement in fish-productivity due to hindrance factors acting upon severe fish species.The mean concentration of phosphate, nitrate and ammonia corresponds about 0.60-1.40 mg/l, 1.30-2.50 mg/l and 23-43 mg/l in polluted river, while after restoration declines to 0.20-0.48 mg/l, 0.60-1.10 mg/l and 14-27 mg/l, respectively indicating more suitable towards fish productivity. The observations on other water parameters also showed similar trend during partial restoration of Daha river. The cause of algal bloom and other macrophytic population is inorganic ammonia, however, organic pollution is also in polluted state observed as more quantity of ammonia than nitrate especially at site II and Site III during the study period. The concentration of nitrate is much higher than the critical value in polluted river which causes algal diversity and macrophytic vegetation. Therefore, partial restoration of the river helped to enhance fish productivity concluded from this study.

Keywords:
Water quality, sediment analysis, restoration practices.

Article Details

How to Cite
Tiwary, C. B. (2020). Ecology and Partial Restoration of Daha River for Fish Productivity. Asian Journal of Fisheries and Aquatic Research, 9(4), 1-8. https://doi.org/10.9734/ajfar/2020/v9i430163
Section
Original Research Article

References

Bashir I, Lone FA, Bhat RA, Mir SA, Dar ZA, Dar SA. Concerns and threats of contamination on aquatic ecosystems. In Bioremediation and Biotechnology. Cham. Springer. 2020;1-26.

Zhang H, Shang Y, Lyu T, Chen J, Pan G. Switching harmful algal blooms to submerged macrophytes inshallow waters using geo-engineering methods: Evidence from a 15N tracing study. Environ. Sci. Technol. 2018;52:11778–11785.

Zedlar JB. Restoring wetland plant diversity: A comparison of existing and ablaptine approaches, wetlands ecology and management. 2005;13(1):5-14.

Pan G, Lyu T, Mortimer R. Comments: Closing phosphorus cycle from natural waters: Re-capturing phosphorus through an integrated water-energy-food strategy. J. Environ. Sci. 2018;65:375–376.

Lewis W, Wurtsbaugh W, Paerl H. Rationale for control of anthropogenic nitrogen and phosphorus to reduce eutrophication of inland waters. Environ. Sci. Technol. 2011;45:10300–10305.

Wu Y, Huang L, Wang Y, Li L, Li G, Xiao B, Song L. Reducing the phytoplankton biomass to promote the growth of submerged macrophytes by introducing artificial aquatic plants in shallow eutrophic waters. Water. 2019;11:1370.

Bhute KB, Harney NV. Macrophytes biodiversity of Nagrala lake of Bhadrawati, district- Chandrapur (M.S.), India. Int. Res. J. of Science & Engineering. 2017;6(1):17-19.

APHA. Standard methods for the examination of water and waste watershed. Washington, USA; 1998.

Cairns A, Yan N. A review to the influence of low ambient calcium concentrations on Freshwater daphniids, gammarids and crayfish. Environ Rev. 2009;17:67-79.

Blackwell Science. Freshwater biology, New Zeland. 2001;46:153-156.

Nazneen S. Influence of hydrological factors on the seasonal abundance of phytoplankton in Keinjer lake. Ine. Rev. hydrobiol. 1980;65(20):269-282.

Harshley DK, Patil SG, Singh DF. Limnological studies on a tropical freshwater fish tank of Jabalpur, India. Geobios. 1982;1(2):98-102.

Das SM, Shrivastava VK. Quantitative studies on plankton. Part 2, Correlation between Plankton and Hydrological factors. Proc. Nat. Acad. Sci. India. 1956; 26(4):243-253.

Singhel RN, Swarn J, Davis RW. The physico-chemical environment and the plankton characteristics of unregulated rural ponds in Haryana, India. Trop Ecol. 1986;26:43-53.

Kumar A, Bohra C, Singh AK. Ecotechnology for limnological project of kawar lake with special reference to biogeochemical cycle, In: Ecology and Ethology of Aquatic biota, Daya Publishing House, Delhi (India). 2002;1:149-199.

Kulshreshtha SK, George MP, Saxena R, Johri M, Shrivastava M. Seasonal variations in the limno-chemical characteristics of Mansarovar reservoir of Bhopal, Aquatic Ecology. 1992;7:275-295.

Sarwar SG. Species composition and seasonal variation of periphyton on Ceratophyllum demersum in waskur lake, Kashmir, Geobios. 1987;6:114- 118.

Elser JJ, Marzolf ER, Goldman CR. Phosphorus and nitrogen limitation in the freshwaters of North America: A review and critic of experimental enrichments. Can. J. Fish aquat Sci. 1990;47:1468-1477.

Prasad Nami, Das Tapati. Diversity and distribution of aquatic macrophytes with special reference to invasive species in Barak Valley, Assam, Northeast India. NeBIO An International Journal of Environment and Biodiversity. 2018;9(1): 102-108

Downing JA, Plante C, Lalonde S. Fish production correlated with primary productivity, not the morpho-edaphic index. Can J. Fish Aquat. Sci. 1990;47:1929-1936.

Tiwary CB, Thakur KK, Tiwari SK. Effect of Unconventional diets on Growth and Survival of Clarias batrachus (Lin.). Journal of Inland Fisheries Society India. 2013; 45(1):53-56.

Penaz M, Jurajda P. Fish assemblage of the Morava river: Longitudinal Zonation and Protection. Folia Zool. 1993;42:317-328.

Scheimer F, Waidbacher H. Strategies for conservation of Danubian fish fauna, In:Boon PJ, Calow P and Petts GJ (Eds.): River Conservation and Management. John Wiley Sons Ltd. Chichester. 1992; 363-382.