Article
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Tier 2
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Original research — experimental, observational, or case-control study. Direct primary evidence.
Human Health Effects
Marine & Wildlife
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COVID-19 lockdown improved the health of coastal environment and enhanced the population of reef-fish
Marine Pollution Bulletin2021
105 citations
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Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Score: 60
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0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
R.L. Laju,
Jamila Patterson,
J. K. Patterson Edward,
R.L. Laju,
R.L. Laju,
Jamila Patterson,
J. K. Patterson Edward,
Jamila Patterson,
Jamila Patterson,
Jamila Patterson,
R.L. Laju,
Jamila Patterson,
Jamila Patterson,
Jamila Patterson,
Jamila Patterson,
Jamila Patterson,
Jamila Patterson,
K. Immaculate Jeyasanta,
K. Immaculate Jeyasanta,
Jamila Patterson,
K. Immaculate Jeyasanta,
K. Immaculate Jeyasanta,
K. Immaculate Jeyasanta,
K. Immaculate Jeyasanta,
Jamila Patterson,
Jamila Patterson,
Jamila Patterson,
Jamila Patterson,
K. Immaculate Jeyasanta,
K. Immaculate Jeyasanta,
K. Immaculate Jeyasanta,
K. Immaculate Jeyasanta,
K. Immaculate Jeyasanta,
R.L. Laju,
R.L. Laju,
K. Immaculate Jeyasanta,
K. Immaculate Jeyasanta,
K. Immaculate Jeyasanta,
K. Immaculate Jeyasanta,
M. Jayanthi,
M. Jayanthi,
M. Jayanthi,
K. Immaculate Jeyasanta,
K. Immaculate Jeyasanta,
K. Immaculate Jeyasanta,
K. Immaculate Jeyasanta,
R.L. Laju,
R.L. Laju,
M. Jayanthi,
K. Immaculate Jeyasanta,
Jamila Patterson,
Jamila Patterson,
Jamila Patterson,
Jamila Patterson,
Jamila Patterson,
H. Malleshappa,
K. Immaculate Jeyasanta,
Jamila Patterson,
Jamila Patterson,
Jamila Patterson,
K. Immaculate Jeyasanta,
Jamila Patterson,
Jamila Patterson,
K. Immaculate Jeyasanta,
Jamila Patterson,
Jamila Patterson,
Jamila Patterson,
Jamila Patterson,
K. Immaculate Jeyasanta,
Jamila Patterson,
Jamila Patterson,
Jamila Patterson,
R.L. Laju,
R.L. Laju,
R.L. Laju,
Gabriel Grimsditch
R.L. Laju,
R.L. Laju,
R.L. Laju,
H. Malleshappa,
Gabriel Grimsditch,
Jamila Patterson,
J. K. Patterson Edward,
J. K. Patterson Edward,
J. K. Patterson Edward,
J. K. Patterson Edward,
J. K. Patterson Edward,
Jamila Patterson,
J. K. Patterson Edward,
Jamila Patterson,
J. K. Patterson Edward,
J. K. Patterson Edward,
K. Immaculate Jeyasanta,
Jamila Patterson,
M. Jayanthi,
R.L. Laju,
R.L. Laju,
K. Immaculate Jeyasanta,
J. K. Patterson Edward,
R.L. Laju,
R.L. Laju,
K. Immaculate Jeyasanta,
J. K. Patterson Edward,
R.L. Laju,
R.L. Laju,
R.L. Laju,
R.L. Laju,
Jamila Patterson,
J. K. Patterson Edward,
J. K. Patterson Edward,
J. K. Patterson Edward,
J. K. Patterson Edward,
J. K. Patterson Edward,
J. K. Patterson Edward,
J. K. Patterson Edward,
J. K. Patterson Edward,
J. K. Patterson Edward,
J. K. Patterson Edward,
K. Diraviya Raj,
G. Mathews,
G. Mathews,
Aarthy Marimuthu,
Aarthy Marimuthu,
Gabriel Grimsditch
Gabriel Grimsditch,
Gabriel Grimsditch
Summary
Researchers compared pre- and post-lockdown environmental data from Indian coastal waters during the COVID-19 pandemic, finding that reduced human activity improved water quality, lowered macroplastic debris concentrations, and increased reef fish density — demonstrating measurable environmental recovery when anthropogenic pressures are temporarily lifted.
Reduction in the impact of human-induced factors is capable of enhancing the environmental health. In view of COVID-19 pandemic, lockdowns were imposed in India. Travel, fishing, tourism and religious activities were halted, while domestic and industrial activities were restricted. Comparison of the pre- and post-lockdown data shows that water parameters such as turbidity, nutrient concentration and microbial levels have come down from pre- to post-lockdown period, and parameters such as dissolved oxygen levels, phytoplankton and fish densities have improved. The concentration of macroplastics has also dropped from the range of 138 ± 4.12 and 616 ± 12.48 items/100 m to 63 ± 3.92 and 347 ± 8.06 items/100 m. Fish density in the reef areas has increased from 406 no. 250 m to 510 no. 250 m. The study allows an insight into the benefits of effective enforcement of various eco-protection regulations and proper management of the marine ecosystems to revive their health for biodiversity conservation and sustainable utilization.