Heavy metals in wetlands of southwestern India: from sediments through invertebrates to migratory shorebirds

被引：15

作者：

Aarif K.M. ^{[1
]}

Rubeena K.A. ^{[2
]}

Nefla A. ^{[3
]}

Musilova Z. ^{[1
]}

Musil P. ^{[1
]}

Shaju S.S. ^{[4
]}

Joseph J. ^{[4
]}

Mullungal M.N. ^{[5
]}

Muzaffar S.B. ^{[6
,7
]}

机构：

[1] Department of Ecology, Faculty of Environmental Sciences, Czech University of Life Sciences, Kamýcká 129, Praha Suchdol, Prague, Prague

[2] Department of Biosciences, MES College Marampally, Kerala, Aluva

[3] Department of Biology, Faculty of Sciences of Tunis, University of Tunis El Manar II, Tunis

[4] Department of Chemical Oceanography, Cochin University of Science and Technology, Kochi

[5] Environmental Sciences Program, Department of Biological and Environmental Sciences, College of Arts and Science, Qatar University, Doha

[6] Department of Biology, United Arab Emirates University, Al Ain

[7] Department of Science, The Natural History Museum, Cromwell Road, South Kensington, London

来源：

Chemosphere | 2023年 / 345卷

关键词：

Heavy metals; Kadalundi-Vallikkunnu Community Reserve; Prey; Sediments; Shorebirds;

D O I：

10.1016/j.chemosphere.2023.140445

中图分类号：

学科分类号：

摘要：

Heavy metal pollution in Indian wetlands is rising due to industrial, agricultural and urban development activities. Shorebirds occupy upper trophic levels and are therefore especially vulnerable to heavy metal pollution. We evaluated the concentration of heavy metals (zinc, copper, cobalt, chromium, lead and cadmium) in 22 common species of migrant shorebirds (220 shorebird dropping samples) with diverse foraging behaviors, in their different prey (55 prey samples) and in the sediments (90 sediment samples) in different habitat types (mudflats, mangroves and sand beaches) between 2019 and 2021. Further, we analyzed a total of 10 biofilm samples from mudflats and mangroves. We detected relatively low concentrations of heavy metals in the sediments (Zn concentration range: 9.11–40.91 mg/kg; Cu: 5.74–21.38 mg/kg; Co: 2.00–4.04 mg/kg; Cr: 4.05–41.03 mg/kg; Pb: 1.02–7.19 mg/kg; Cd: 0.56–4.35 mg/kg). However, we measured relatively high concentrations of heavy metals in invertebrate prey species (Zn concentration range: 84.72–224.74 mg/kg; Cu: 26.63–170.36 mg/kg; Co: 13.98–14.42 mg/kg; Cr: 14.78–98.16 mg/kg; Pb: 18.95–157.29 mg/kg; Cd: 9.33–60.56 mg/kg). In addition, we found high concentrations of heavy metals in shorebird droppings (Zn concentration range: 41.33–58.8 mg/kg; Cu: 31.42–52.11 mg/kg; Co: 36.34–55.68 mg/kg; Cr: 52.3–68.21 mg/kg; Pb: 25.94–43.13 mg/kg; Cd: 5.53–16.4 mg/kg). It is evident that concentration of heavy metals increased successively moving from sediment to prey to shorebird species, likely through trophic transfer. The biofilm samples contained very high concentrations of Cr, Pb and Cd (22.64, 28.09 and 18.46 mg/kg respectively) which could be harmful to biofilm grazing shorebirds. Since bioaccumulation of heavy metals entail risks in living species, we suggest that increasing concentrations may detrimentally affect physiological processes in invertebrates and shorebirds. There is an urgent need to identify the sources of pollution and to reduce the discharge of heavy metals and other pollutants into coastal and inland wetlands. © 2023 Elsevier Ltd

引用

共 82 条

[1]

Aarif K.M., Mussammilu K.K., Pivotal reasons for the declining of shorebirds in Kadalundi-Vallikkunnnu Community Reserve, a key stop-over site in the West Coast of India, Asian J. Conservat. Biol., 7, 1, pp. 46-50, (2018)

[2]

Aarif K.M., Prasadan P.K., Babu S., Conservation significance of the Kadalundi-Vallikunnu Community Reserve Current Science, 101, 5, pp. 717-718, (2011)

[3]

Aarif K.M., Muzaffar S.B., Babu S., Prasadan P.K., Shorebird assemblages respond to anthropogenic stress by altering habitat use in a wetland in India, Biodivers. Conserv., 23, 3, pp. 727-740, (2014)

[4]

Aarif K.M., Kaiser S.A., Nefla A., AlMaarofi S., Over-summering abundance, species composition, and habitat use pattern at a globally important site for migratory shorebirds, Wilson J. Ornithol., 132, 1, pp. 1-8, (2020)

[5]

Aarif K.M., Nefla A., Muzaffar S.B., Musammilu K.K., Prasadan P.K., Traditional fishing activities enhance the abundance of selected waterbird species in a wetland in India, Avian Research, 8, pp. 1-10, (2017)

[6]

Aarif K.M., Nefla A., Nasser M., Prasadan P.K., Athira T.R., Muzaffar S.B., Multiple environmental factors and prey depletion determine declines in abundance and timing of departure in migratory shorebirds in the west coast of India, Global Ecology and Conservation, 26, (2021)

[7]

Aarif K.M., Nefla A., Prasadan P.K., Muzaffar S.B., The costs of migration: Injuries in migratory waterbirds along the west coast of India, Saudi Journal of Biological Sciences, 28, 11, pp. 6030-6039, (2021)

[8]

Abbott R.T., Dance S.P., Compendium of Seashells: a Colour Guide to More than 4200 of the World's Marine Shells, (1990)

[9]

Alcock A., Materials for a Carcinological Fauna of India, (1985)

[10]

Athira T.R., Nefla A., Shifa C.T., Shamna H., Aarif K.M., AlMaroofi S., Rashiba A.P., Reshi O., Jobiraj T., Thejas T., Muzaffar S.B., The impact of long-term environmental change on zooplankton along the southwestern coast of India, Environmental Monitoring and Assessment, 194, 4, (2022)

← 1 2 3 4 5 6 7 8 9 →