Chronological variation in landing of Indian Major Carp (IMC) of Ganga River. Issue 1 (26th July 2020)
- Record Type:
- Journal Article
- Title:
- Chronological variation in landing of Indian Major Carp (IMC) of Ganga River. Issue 1 (26th July 2020)
- Main Title:
- Chronological variation in landing of Indian Major Carp (IMC) of Ganga River
- Authors:
- Jha, Dharm Nath
Alam, Absar
Das, Shyamal Chandra Sukla
Thakur, Venkatesh Ramarao
Kumar, Jeetendra
Gupta, Monika
Srivastava, Rama Shankar
Das, Basant Kumar - Abstract:
- Abstract: During its course of 2, 525 km, the River Ganga flows through the variant topography, ecological, and environmental conditions that harbor huge range of floral, faunal, and fish diversity. The ecological condition and biodiversity of upper, middle, and lower stretches of the river are different from each other. Increases in anthropogenic activities on Ganga have resulted in a decrease in quality and quantity of its water, which ultimately led to change in its biodiversity. Menon (1974) listed 141 fish species occurring in the Ganga River system belonging to 72 genera, 30 families, and 11 orders. Recent studies reported 143 fish species from the River Ganga (Das et al., 2014; Sarkar et al., 2011) including cold water, freshwater, and estuarine fishes. In this article, a critical comparison is made on the availability of an important fish group, the Indian Major Carp (IMC), of the Ganga River during different decades, starting from 1956 and annual yield between 2005 and 2018. Average annual IMC landing during 1955–1967 was recorded as 90.85 ton, with maximum (131.3 ton) during 1964–1965 and minimum (54.0 ton) in the year 1958–1959. There was generally an increasing trend of IMC landing during 2005–2018, but it has reduced to one‐third in comparison to the time period of 1956–1967. The analysis shows that catch as well as species composition of IMC had been changed over the period of time due to changes in hydrological regime and ecology of the river. The reason inAbstract: During its course of 2, 525 km, the River Ganga flows through the variant topography, ecological, and environmental conditions that harbor huge range of floral, faunal, and fish diversity. The ecological condition and biodiversity of upper, middle, and lower stretches of the river are different from each other. Increases in anthropogenic activities on Ganga have resulted in a decrease in quality and quantity of its water, which ultimately led to change in its biodiversity. Menon (1974) listed 141 fish species occurring in the Ganga River system belonging to 72 genera, 30 families, and 11 orders. Recent studies reported 143 fish species from the River Ganga (Das et al., 2014; Sarkar et al., 2011) including cold water, freshwater, and estuarine fishes. In this article, a critical comparison is made on the availability of an important fish group, the Indian Major Carp (IMC), of the Ganga River during different decades, starting from 1956 and annual yield between 2005 and 2018. Average annual IMC landing during 1955–1967 was recorded as 90.85 ton, with maximum (131.3 ton) during 1964–1965 and minimum (54.0 ton) in the year 1958–1959. There was generally an increasing trend of IMC landing during 2005–2018, but it has reduced to one‐third in comparison to the time period of 1956–1967. The analysis shows that catch as well as species composition of IMC had been changed over the period of time due to changes in hydrological regime and ecology of the river. The reason in totality of this change is a focused theme of this paper. 摘要: 全长2525km的恒河流经不同地形、生态与环境条件,大量不同的植物、动物与鱼类在其中生存。恒河上中下游的生态条件与生物多样性均不相同。人类活动的增加造成了恒河水质和水量减少,最终导致生物多样性发生变化。学者Menon (1974) 列出了恒河流域系统中出现的141种鱼类,它们来自于72属、30科、11目。近期研究报道了恒河流域中的143种鱼类(Sarkar et al . 2011, Das et al . 2014),包括冷水鱼、淡水鱼和河口鱼。本文对自1956年起的各十年内恒河流域的主要印度鲤鱼(IMC)(一个重要鱼群)的可获取性以及2005年至2018年间每年的捕获量进行批判性比较。1955年至1967年间每年平均IMC捕获量为90.85吨,其中1964年至1965年的捕获量最高(131.3吨),1958年至1959年的捕获量最低(54.0吨)。2005年至2018年间IMC捕获量基本出现逐年增加的趋势,但与1956年至1967年相比该数字减少到了后者的三分之一。分析表明,由于该流域的水文情势与生态发生变化,IMC的捕获量及组成已随时间推移发生改变。这种改变的整体原因是本文的研究主题。 Resumen: Durante su curso de 2525 km, el río Ganges fluye a través de la topografía variada, las condiciones ecológicas y ambientales que albergan gran variedad de diversidad floral, faunística y de peces. La condición ecológica y la biodiversidad de los tramos superior, medio e inferior del río son diferentes entre sí. Los aumentos en las actividades antropogénicas en Ganga han resultado en una disminución de la calidad y cantidad de su agua, lo que finalmente condujo a un cambio en su biodiversidad. Menon (1974) enumeró 141 especies de peces que se encuentran en el sistema del río Ganges pertenecientes a 72 géneros, 30 familias y 11 orden. Estudios recientes informaron 143 especies de peces del río Ganges (Sarkar et al. 2011, Das et al. 2014), incluidos peces de agua fría, agua dulce y estuarios. En este artículo se hace una comparación crítica sobre la disponibilidad de un importante grupo de peces, la Carpa Mayor de la India (IMC), del río Ganges durante diferentes décadas, a partir de 1956 y el rendimiento anual entre 2005 y 2018. Desembarco anual promedio de IMC durante 1955–1967 se registró como 90.85 toneladas, con un máximo (131.3 toneladas) durante 1964–1965 y un mínimo (54.0 toneladas) en el año 1958–1959. En general, hubo una tendencia creciente de aterrizaje IMC durante 2005–2018, pero se ha reducido a un tercio en comparación con el período de 1956–1967. El análisis muestra que la captura y la composición de especies de IMC habían cambiado a lo largo del tiempo debido a cambios en el régimen hidrológico y la ecología del río. La razón en su totalidad de este cambio es un tema central de este documento. … (more)
- Is Part Of:
- World water policy. Volume 6:Issue 1(2020)
- Journal:
- World water policy
- Issue:
- Volume 6:Issue 1(2020)
- Issue Display:
- Volume 6, Issue 1 (2020)
- Year:
- 2020
- Volume:
- 6
- Issue:
- 1
- Issue Sort Value:
- 2020-0006-0001-0000
- Page Start:
- 142
- Page End:
- 151
- Publication Date:
- 2020-07-26
- Subjects:
- exotic -- fisheries -- Ganga -- IMC -- Landing
恒河 -- 渔业 -- 捕鱼量 -- 主要印度鲤鱼(IMC) -- 外来物种
Ganga -- Pesca -- Desembarco -- IMC -- Exótico
Water resources development -- Government policy -- Periodicals
Water-supply -- Government policy -- Periodicals
Water-supply -- Management -- Periodicals
Environmental policy -- Periodicals
363.61 - Journal URLs:
- https://onlinelibrary.wiley.com/journal/2639541x ↗
http://onlinelibrary.wiley.com/ ↗ - DOI:
- 10.1002/wwp2.12027 ↗
- Languages:
- English
- ISSNs:
- 2639-541X
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- Legaldeposit
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