Impact of Jute Retting on Native Fish Diversity and Aquatic Health of Roadside Transitory Water Bodies: an Assessment in Eastern India

• Autorzy: Ghosh D. , Biswas J. K.

Identyfikatory

DOI

10.12911/22998993/59342

• Języki publikacji: EN

Abstrakty

EN

Roadside transitory water bodies being manmade depressions have a great ecological and socio-economic importance from years. The effects of agricultural runoffs, jute retting, macro-phytes infestations and inadequate rainfall in changed climate often degrade transitory water bodies’ environment while the biodiversity have impacted severely because of population pressure, over exploitation and indiscriminate use of fine meshed fishing gears as a whole. Physico-chemical and biological analysis with fish species composition, relative abundance, diversity indices like species richness, evenness and Shannon-Wiener index were carried out for pre-, during and post-jute retting season and for year mean as a whole to assess impact of jute retting on the roadside transitory water body’s environmental health and indigenous fish diversity at Sahebnagar village in Nadia District, India. All the physico-chemical parameters barring biochemical oxygen demand and water transparency remained more or less same or marginally got little changed during those three seasons. As much as 19 native fish species with varied relative abundances and dominances were identified. Jute retting impacted lower native fish diversity indices like Shannon-Wiener index values (1.94 to 2.68) clearly indicated poor to moderate pollution status of the transitory water body in that area during monsoon in particular and throughout the year in general. So we opined there should be some control over the intense jute retting in the road side transitory water bodies for sustainable management of these manmade resources.

Słowa kluczowe

EN

transitory water bodies; physicochemical analysis; fish diversity; Shannon-Wiener Index; jute retting

• Wydawca: Polskie Towarzystwo Inżynierii Ekologicznej ; Lublin University of Technology
• Czasopismo: Journal of Ecological Engineering
• Rocznik: 2015
• Tom: Vol. 16, nr 4
• Strony: 14--21
• Opis fizyczny: Bibliogr. 17 poz., tab., rys.

Twórcy

autor

Ghosh D.

• Department of Ecological Engineering and Environmental Management, University of Kalyani, Kalyani, West Bengal, India

autor

Biswas J. K.

• Department of Ecological Engineering and Environmental Management, University of Kalyani, Kalyani, West Bengal, India

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