Economic valuation of net social benefit of seasonal fishing ban in selected maritime states of India

Narayanakumar, R; Jayasankar, J; Salim, Shyam S.; Ganga, U; Vivekanandan, E

doi:10.21077/ijf.2017.64.3.65197-12

Cited by 8 publications

(6 citation statements)

References 1 publication

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“…The species of sea snakes caught, abundance, fishing effort (soak time for gillnets, number of hauls and average haul duration for trawlers) were recorded for each trip. Sampling was not carried out between June and August during the seasonal closure of industrial fisheries (trawlers, gillnetters and purse seiners; Narayanakumar et al, 2017). Total sampling effort summary has been provided in Table 1.…”

Section: Methodsmentioning

confidence: 99%

Fisheries induced shift in sea snake community assemblages along the Konkan coast, India

Rao¹,

Dsouza²,

Gupta³

et al. 2021

Aquatic Conservation

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The impacts of fisheries on several charismatic marine fauna have been a subject of global concern. Sea snakes share the same habitats as many commercially important fish species and often end up as fisheries bycatch. Previous studies of bycatch from India have been limited to individual reports of mortality, with little information on the regional community structure of sea snakes. This study was carried out along the Konkan coast, off the central west coast of India, between 2016 and 2018, to determine trends in the bycatch of sea snakes in coastal fisheries. In this study, 922 sea snakes were encountered in 916.57 gillnet haul hours and 449.16 trawlers haul hours of fishing, comprising largely of two species: beaked sea snake (Hydrophis schistosus) and spine‐bellied sea snake (Hydrophis curtus) (83.05 and 16.94% respectively) which was in stark contrast to a similar study conducted in 2002–03, which recorded a dominance of H. curtus (84%) followed by H. schistosus (14%) in the same region. Both studies, however, indicated higher mortality in H. curtus than in H. schistosus in trawl nets. This study highlights the significant impact of non‐selective fishing practices on regional assemblages of other marine organisms such as sea snakes from South Asia, which has been relatively understudied, and the potential consequences for local ecosystems.

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Section: Methodsmentioning

confidence: 99%

Fisheries induced shift in sea snake community assemblages along the Konkan coast, India

Rao¹,

Dsouza²,

Gupta³

et al. 2021

Aquatic Conservation

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show abstract

“…), mackerel (Rastrelliger kanagurta) and other pelagic fish using a pelagic net (i.e., mid-water trawl net). Trawl fishing takes place between August to May, with a mandatory seasonal ban imposed by the government during June and July to protect spawning fish (Narayanakumar et al, 2017). Trawlers operate across the region, from Panaji in Goa State in the south to Ratnagiri in the north (approx.…”

Section: Study Site and Fisherymentioning

confidence: 99%

Mitigation of Elasmobranch Bycatch in Trawlers: A Case Study in Indian Fisheries

Gupta¹,

Booth

Arlidge

et al. 2020

Front. Mar. Sci.

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“…The ecological impacts of the temporal fishing ban are proven to contribute substantially to future stock regeneration as reported by the 15/22 days fishing ban to protect hilsa spawning (5,6) . Through creating positive ecological impacts, the fishing ban has created net social and economic benefit of the resource-dependent fishers (7) which in turn contribute directly and indirectly to United Nation's sustainable development goals (SDGs) 1, 2, and 14 (8) .…”

Section: Introductionmentioning

confidence: 99%

Impacts of marine fishing ban on the ecology of hilsa In the Nijhum Dwip Seascape in Bangladesh

Khan¹,

Smith²,

Yeasmin³

et al. 2023

Dhaka Univ. J. Biol. Sci

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Bangladesh government has imposed a 65-day marine fishing ban since 2015 to conserve marine fisheries, particularly to boost hilsa (Tenualosa ilisha) production. However, the ecological impacts of the marine fishing bans on water quality and hilsa’s growth are not assessed yet. Thus, this study aims to contribute here using data from coastal waters and fish from pre-contacted fishers in the Nijhum Dwip seascape during and outside the fishing ban in 2021 – 2022. Data were analyzed using R software. The measured mean dissolved oxygen, temperature, pH, electrical conductivity, total dissolved solids, and transparency of the sample water were 7.1 ± 1.13 mg/l, 31.1 ± 0.71°C, 8.45 ± 0.07, 40000 ± 2828 μS/cm, 18000 ± 1414 mg/L and 63.5 ± 2.12 cm at 1 week prior to the ban ends (July) and 8.45 ± 0.21 mg/l, 22.35 ± 0.49°C, 8.45 ± 0.07, 20500 ± 1060.66 μS/cm, 10350 ± 212.13 mg/l and 63.5 ± 7.78 cm before the ban starts (February). The values might be varied due to seasonal differences. The mean length (38 cm) and weight (601 g) of sampled hilsa during the ban periodwere comparatively larger than the mean length (29 cm) and weight (229 g) of hilsa which were sampled during the outside fishing ban period. Therefore, this study concludes that the marine fishing ban has positive impact on the growth and size of hilsa. This study suggests that further research is required to assess the fishing ban’s impact on the growth and production of other coastal and marine fish species across the Bay of Bengal. Dhaka Univ. J. Biol. Sci. 32(1): 33-43, 2023 (January)

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Economic valuation of net social benefit of seasonal fishing ban in selected maritime states of India

Cited by 8 publications

References 1 publication

Fisheries induced shift in sea snake community assemblages along the Konkan coast, India

Fisheries induced shift in sea snake community assemblages along the Konkan coast, India

Mitigation of Elasmobranch Bycatch in Trawlers: A Case Study in Indian Fisheries

Impacts of marine fishing ban on the ecology of hilsa In the Nijhum Dwip Seascape in Bangladesh

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