Implications of COVID-19 on oxbow lake (Baors) Fisher's community, Bangladesh: resilience to food security against probable natural calamities

Samad, Md. Abdus; Rahman, Md. Ataur; Yeasmin, Syeda Maksuda; Mahfuj, Sarower; Rahman, Md. Habibur; Sultana, Mst. Farzana; Rahman, Md. Ashekur; Sen, Tarun K.; Rahman, Md. Anisur; Islam, Md. Sherazul; Hossain, Md. Yeamin

doi:10.1016/j.heliyon.2022.e11326

Cited by 7 publications

(2 citation statements)

References 33 publications

(31 reference statements)

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“…The value of LWR of G. chapra indicated negative allometric growth (b = 2.50). The results obtained by various researchers from different water bodies of the Indian subcontinent [15,16,34,57] supported the present findings. This negative allometric growth could be due to ineffective nutrition or environmental incompatibilities with fish growth.…”

Section: Discussionsupporting

confidence: 91%

Stock Status of a Few Small Indigenous Fish Species Exploited in the River Ganga, India

Ray,

Das,

Bhakta

et al. 2023

Fishes

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The River Ganga produces a substantial amount of its fish from small native species, defined here as those with a maximum length of 25 cm. The FiSAT program was utilized to estimate stock assessments of four important small indigenous species from the River Ganga: Johnius coitor, Cabdio morar, Salmostoma bacaila, and Gudusia chapra. Fish samples were collected monthly for a year (April 2020–May 2021) from four predetermined sampling sites along the River Ganga (Farakka, Berhampore, Balagarh, and Tribeni) in West Bengal, India. The estimated exploitation rate for Johnius coitor, Salmostoma bacaila, and Gudusia chapra was relatively lower than the optimum level of 0.5 and considerably lower than Emax values, indicating that their stocks are experiencing low fishing pressure in the region. The FiSAT results indicated that the species Cabdio morar was found to be heavily exploited. The total mortality (Z), natural mortality (M), and fishing mortality (F) rates for all four of the SIF species were examined, and they were contrasted with data from previous studies. On the lower stretch of the River Ganga, all of the fish stocks are optimally exploited (Eopt), except for the species Cabdio morar. The population dynamics of all of the species have been described for the first time on the lower stretch of the River Ganga. According to the findings, all of the fish stocks throughout the lower stretch of River Ganga are optimally exploited (Eopt), except for Cabdio morar. The study also emphasizes the importance of increasing sustainable fishing efforts, focusing on SIFs throughout the lower stretch of the River Ganga in order to safeguard the livelihood and nutritional status of fishermen.

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Section: Discussionsupporting

confidence: 91%

Stock Status of a Few Small Indigenous Fish Species Exploited in the River Ganga, India

Ray,

Das,

Bhakta

et al. 2023

Fishes

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“…(Samrat et al, 2023;Hérault & Piponiot, 2018;Lafleur et al, 2018;Lee et al, 2014;Sun & Liu, 2020). Jhenaidah, a region nestled in the southwestern part of Bangladesh, boasts a prominent expanse of Baor, which is considered one of the invaluable wetlands dotting the Bangladeshi landscape (Samad et al, 2022) and is reputed for moderate to dense vegetation cover but urbanization causing deforestation. Anthropogenic factors also reduce the number of wetlands in this region has undergone a drastic decline over the past four decades (Mustafa et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Water and Vegetation Cover Change Detection Using Multispectral Satellite Imagery: A Case Study on Jhenaidah District of Bangladesh

2023

BJMSR

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Water and vegetation are the two most important land cover features of any natural setting. The Jhenaidah District of Bangladesh is known for its remarkable physical geography, featuring diversified vegetation cover and numerous oxbow lakes. Due to several anthropogenic causes, this majestic land cover is degrading rapidly. This study examines the study area's spatiotemporal water and vegetation cover change from 1990 to 2020. Freeware Satellite imageries from the USGS data archive were used as the main secondary data source, ensuring consistency by collecting dry season images. In addition, open discussions with the residents provided valuable insights into the situation. Remote sensing (RS) based Soil Adjusted Vegetation Index (SAVI) was used to detect the water and vegetation cover from the preprocessed satellite imageries. Furthermore, the water and vegetation cover were classified based on a scheme developed by field observation and discussion with the residents. The analysis reveals an overall 84.47% decline in dense vegetation, 63.01% decline in deep water cover, 185.69% increase in shallow water cover, and 16.08% increase in agricultural lands within the mentioned time frame. Almost all the upazila of Jhenauidah district experience the criticality of the land cover change. Among the upazila, Shailkupa faced an unprecedented decline in deep water (95.29%), and Kaliganj faced a heavy decrease in forested vegetation (92.40%). In contrast, shallow water expanded significantly in Sadar Upazila (251.37%), and agricultural land experienced the most increasing trend (32.70%) in Shailakupa Upazila.

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Impacts, challenges, and adaptation of small-scale fishers during the COVID-19 pandemic in selected tropical countries

Macusi,

Bersaldo,

Katikiro

et al. 2024

Aquat Sci

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Implications of COVID-19 on oxbow lake (Baors) Fisher's community, Bangladesh: resilience to food security against probable natural calamities

Cited by 7 publications

References 33 publications

Stock Status of a Few Small Indigenous Fish Species Exploited in the River Ganga, India

Stock Status of a Few Small Indigenous Fish Species Exploited in the River Ganga, India

Water and Vegetation Cover Change Detection Using Multispectral Satellite Imagery: A Case Study on Jhenaidah District of Bangladesh

Impacts, challenges, and adaptation of small-scale fishers during the COVID-19 pandemic in selected tropical countries

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