Human health risk attributed to consumption of seafood and recreation swimming in Negombo Lagoon, Sri Lanka: An assessment on lagoon water and inhabitant oysters (Crassostrea cucullata Born, 1778)

Samuel Ayitey; T.W.G.F. Mafaziya Nijamdeen; H Peiris; Sunanda Kodikara Kodikara Arachchilage; Isabelle George; Farid Dahdouh Guebas; K.H.M. Ashoka Deepananda

doi:10.1016/j.marpolbul.2024.116189

Human health risk attributed to consumption of seafood and recreation swimming in Negombo Lagoon, Sri Lanka: An assessment on lagoon water and inhabitant oysters (Crassostrea cucullata Born, 1778)

Samuel Ayitey, T.W.G.F. Mafaziya Nijamdeen, H Peiris, Sunanda Kodikara Kodikara Arachchilage, Isabelle George, Farid Dahdouh Guebas, K.H.M. Ashoka Deepananda

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Abstract

The Negombo Lagoon is a coastal lagoon influenced by local communities that introduce waste into its ecosystem. This study examined seven sewage entry points, out of which five sites were chosen for oyster sampling based on availability. Physicochemical and microbiological parameters of water (measured in triplicate at each site, n = 84) and oyster samples (total length, TL > 6 cm, n = 30) were assessed. Variation in regional coliform contamination was analyzed employing a one-way analysis of variance (ANOVA). Results indicated that
the northern part of the lagoon exceeded recommended coliform thresholds for swimming (total coliform concentration (TCC) < 126 most probable number (MPN)) and seafood consumption (TCC < 100 MPN/g), indicating the presence of Escherichia coli. Water quality indices affirmed fecal pollution, except in the southern part of the lagoon. Furthermore, the study found high oyster consumption (76.7 %), elucidating that oysters from the northern part of Negombo Lagoon pose health risks

Original language	English
Article number	116189
Number of pages	11
Journal	Marine Pollution Bulletin
Volume	201
Issue number	116189
DOIs	https://doi.org/10.1016/j.marpolbul.2024.116189
Publication status	Published - Apr 2024

Bibliographical note

Funding Information:
The authors express their gratitude to the Erasmus Mundus excellence grant through the European Commission -funded Erasmus Mundus Joint Master Degree in Tropical Biodiversity and Ecosystems - TROPIMUNDO, as well as to the FSPI-SEDRIC Project of the French Embassy of Sri Lanka through the Department of Botany, University of Ruhuna (UoR), for providing funding for this research work. The authors also extend thanks to the Faculty of Allied Health Science, the Faculty of Fisheries and Marine Sciences and Technology, and the Department of Botany at UoR for providing laboratory space and facilities for the research. We are especially thankful to Vidusana P.G.G.S of the Faculty of Allied Health Sciences for supporting the microbiology aspect of the research and to Wijesundara W.M.I.C. and Ranawaka D.P·D for assisting in conducting interviews with the local people in Negombo, Sri Lanka.

Funding Information:
The authors express their gratitude to the Erasmus Mundus excellence grant through the European Commission-funded Erasmus Mundus Joint Master Degree in Tropical Biodiversity and Ecosystems - TROPIMUNDO, as well as to the FSPI-SEDRIC Project of the French Embassy of Sri Lanka through the Department of Botany, University of Ruhuna (UoR), for providing funding for this research work. The authors also extend thanks to the Faculty of Allied Health Science, the Faculty of Fisheries and Marine Sciences and Technology, and the Department of Botany at UoR for providing laboratory space and facilities for the research. We are especially thankful to Vidusana P.G.G.S of the Faculty of Allied Health Sciences for supporting the microbiology aspect of the research and to Wijesundara W.M.I.C. and Ranawaka D.P·D for assisting in conducting interviews with the local people in Negombo, Sri Lanka.

Publisher Copyright:
© 2024 Elsevier Ltd

Keywords

Crassostrea cuccullata Escherichia coli Negombo Lagoon Sewage pollution Total coliform

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10.1016/j.marpolbul.2024.116189

Cite this

Ayitey, S., Mafaziya Nijamdeen, T. W. G. F., Peiris, H., Kodikara Arachchilage, S. K., George, I., Dahdouh Guebas, F., & Ashoka Deepananda, K. H. M. (2024). Human health risk attributed to consumption of seafood and recreation swimming in Negombo Lagoon, Sri Lanka: An assessment on lagoon water and inhabitant oysters (Crassostrea cucullata Born, 1778). Marine Pollution Bulletin, 201(116189), Article 116189. https://doi.org/10.1016/j.marpolbul.2024.116189

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abstract = "The Negombo Lagoon is a coastal lagoon influenced by local communities that introduce waste into its ecosystem. This study examined seven sewage entry points, out of which five sites were chosen for oyster sampling based on availability. Physicochemical and microbiological parameters of water (measured in triplicate at each site, n = 84) and oyster samples (total length, TL > 6 cm, n = 30) were assessed. Variation in regional coliform contamination was analyzed employing a one-way analysis of variance (ANOVA). Results indicated thatthe northern part of the lagoon exceeded recommended coliform thresholds for swimming (total coliform concentration (TCC) < 126 most probable number (MPN)) and seafood consumption (TCC < 100 MPN/g), indicating the presence of Escherichia coli. Water quality indices affirmed fecal pollution, except in the southern part of the lagoon. Furthermore, the study found high oyster consumption (76.7 %), elucidating that oysters from the northern part of Negombo Lagoon pose health risks",

keywords = "Crassostrea cuccullata Escherichia coli Negombo Lagoon Sewage pollution Total coliform",

author = "Samuel Ayitey and {Mafaziya Nijamdeen}, T.W.G.F. and H Peiris and {Kodikara Arachchilage}, {Sunanda Kodikara} and Isabelle George and {Dahdouh Guebas}, Farid and {Ashoka Deepananda}, K.H.M.",

note = "Funding Information: The authors express their gratitude to the Erasmus Mundus excellence grant through the European Commission -funded Erasmus Mundus Joint Master Degree in Tropical Biodiversity and Ecosystems - TROPIMUNDO, as well as to the FSPI-SEDRIC Project of the French Embassy of Sri Lanka through the Department of Botany, University of Ruhuna (UoR), for providing funding for this research work. The authors also extend thanks to the Faculty of Allied Health Science, the Faculty of Fisheries and Marine Sciences and Technology, and the Department of Botany at UoR for providing laboratory space and facilities for the research. We are especially thankful to Vidusana P.G.G.S of the Faculty of Allied Health Sciences for supporting the microbiology aspect of the research and to Wijesundara W.M.I.C. and Ranawaka D.P·D for assisting in conducting interviews with the local people in Negombo, Sri Lanka. Funding Information: The authors express their gratitude to the Erasmus Mundus excellence grant through the European Commission-funded Erasmus Mundus Joint Master Degree in Tropical Biodiversity and Ecosystems - TROPIMUNDO, as well as to the FSPI-SEDRIC Project of the French Embassy of Sri Lanka through the Department of Botany, University of Ruhuna (UoR), for providing funding for this research work. The authors also extend thanks to the Faculty of Allied Health Science, the Faculty of Fisheries and Marine Sciences and Technology, and the Department of Botany at UoR for providing laboratory space and facilities for the research. We are especially thankful to Vidusana P.G.G.S of the Faculty of Allied Health Sciences for supporting the microbiology aspect of the research and to Wijesundara W.M.I.C. and Ranawaka D.P·D for assisting in conducting interviews with the local people in Negombo, Sri Lanka. Publisher Copyright: {\textcopyright} 2024 Elsevier Ltd",

year = "2024",

month = apr,

doi = "10.1016/j.marpolbul.2024.116189",

language = "English",

volume = "201",

journal = "Marine Pollution Bulletin",

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Ayitey, S, Mafaziya Nijamdeen, TWGF, Peiris, H, Kodikara Arachchilage, SK, George, I, Dahdouh Guebas, F & Ashoka Deepananda, KHM 2024, 'Human health risk attributed to consumption of seafood and recreation swimming in Negombo Lagoon, Sri Lanka: An assessment on lagoon water and inhabitant oysters (Crassostrea cucullata Born, 1778)', Marine Pollution Bulletin, vol. 201, no. 116189, 116189. https://doi.org/10.1016/j.marpolbul.2024.116189

Human health risk attributed to consumption of seafood and recreation swimming in Negombo Lagoon, Sri Lanka: An assessment on lagoon water and inhabitant oysters (Crassostrea cucullata Born, 1778). / Ayitey, Samuel; Mafaziya Nijamdeen, T.W.G.F.; Peiris, H et al.
In: Marine Pollution Bulletin, Vol. 201, No. 116189, 116189, 04.2024.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Human health risk attributed to consumption of seafood and recreation swimming in Negombo Lagoon, Sri Lanka: An assessment on lagoon water and inhabitant oysters (Crassostrea cucullata Born, 1778)

AU - Ayitey, Samuel

AU - Mafaziya Nijamdeen, T.W.G.F.

AU - Peiris, H

AU - Kodikara Arachchilage, Sunanda Kodikara

AU - George, Isabelle

AU - Dahdouh Guebas, Farid

AU - Ashoka Deepananda, K.H.M.

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PY - 2024/4

Y1 - 2024/4

N2 - The Negombo Lagoon is a coastal lagoon influenced by local communities that introduce waste into its ecosystem. This study examined seven sewage entry points, out of which five sites were chosen for oyster sampling based on availability. Physicochemical and microbiological parameters of water (measured in triplicate at each site, n = 84) and oyster samples (total length, TL > 6 cm, n = 30) were assessed. Variation in regional coliform contamination was analyzed employing a one-way analysis of variance (ANOVA). Results indicated thatthe northern part of the lagoon exceeded recommended coliform thresholds for swimming (total coliform concentration (TCC) < 126 most probable number (MPN)) and seafood consumption (TCC < 100 MPN/g), indicating the presence of Escherichia coli. Water quality indices affirmed fecal pollution, except in the southern part of the lagoon. Furthermore, the study found high oyster consumption (76.7 %), elucidating that oysters from the northern part of Negombo Lagoon pose health risks

AB - The Negombo Lagoon is a coastal lagoon influenced by local communities that introduce waste into its ecosystem. This study examined seven sewage entry points, out of which five sites were chosen for oyster sampling based on availability. Physicochemical and microbiological parameters of water (measured in triplicate at each site, n = 84) and oyster samples (total length, TL > 6 cm, n = 30) were assessed. Variation in regional coliform contamination was analyzed employing a one-way analysis of variance (ANOVA). Results indicated thatthe northern part of the lagoon exceeded recommended coliform thresholds for swimming (total coliform concentration (TCC) < 126 most probable number (MPN)) and seafood consumption (TCC < 100 MPN/g), indicating the presence of Escherichia coli. Water quality indices affirmed fecal pollution, except in the southern part of the lagoon. Furthermore, the study found high oyster consumption (76.7 %), elucidating that oysters from the northern part of Negombo Lagoon pose health risks

KW - Crassostrea cuccullata Escherichia coli Negombo Lagoon Sewage pollution Total coliform

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DO - 10.1016/j.marpolbul.2024.116189

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Ayitey S, Mafaziya Nijamdeen TWGF, Peiris H, Kodikara Arachchilage SK, George I, Dahdouh Guebas F et al. Human health risk attributed to consumption of seafood and recreation swimming in Negombo Lagoon, Sri Lanka: An assessment on lagoon water and inhabitant oysters (Crassostrea cucullata Born, 1778). Marine Pollution Bulletin. 2024 Apr;201(116189):116189. doi: 10.1016/j.marpolbul.2024.116189

Human health risk attributed to consumption of seafood and recreation swimming in Negombo Lagoon, Sri Lanka: An assessment on lagoon water and inhabitant oysters (Crassostrea cucullata Born, 1778)

Abstract

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