A novel approach to assess the heavy metal content in the feathers of shorebirds: A perspective of environmental research

Pandiyan, Jeganathan; Mahboob, Shahid; Jagadheesan, Rajendran; Elumalai, K.; Krishnappa, Kaliyamoorthy; Al‐Misned, Fahad A.; Kaimkhani, Zahid Ali; Govindarajan, Marimuthu

doi:10.1016/j.jksus.2020.08.014

Cited by 27 publications

(31 citation statements)

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“…The collected water samples were transported to the analytical lab in the ice box. The water samples were kept in 1% HNO 3 at 4 °C until the analysis of metals ( Kiffney and Clements, 1993 , Pandiyan et al, 2020 ).…”

Section: Methodsmentioning

confidence: 99%

“…Deionised H 2 O was gradually added to the flask until reached 100 ml of volume of the sample. The sample solution was kept in a well cleaned analytical bottle with the label until metal analysis ( Adebayo, 2017 , Pandiyan et al, 2020 ).…”

Section: Methodsmentioning

confidence: 99%

“…The dried soil sample was crushed to fine powder and filtered by using with a 2 mm sieve. The samples were prepared for the analysis of metals described earlier by Pandiyan et al, (2020) . The filtered soil sediment sample was transferred in a 100 ml of flask (volumetric) and made the sample until 100 ml with by adding deionised H 2 O.…”

Section: Methodsmentioning

confidence: 99%

“…But recently several wetlands are under severe threats due to various pollutants ( Agoramoorthy and Pandiyan, 2015 ). The heavy metals are one among the serious pollution in the aquatic habitats since these heavy metals are flexible to enter the food chain of an aquatic ecosystem ( Censi et al, 2006 , Pandiyan et al, 2020 ). The heavy metals are badly affecting the aquatic habitats and which is becomes a big threat since most of the heavy metals are severe toxic effects on several organisms ( MacFarlane and Burchett, 2000 ).…”

Section: Introductionmentioning

confidence: 99%

“…The benthic organisms, prawns and fishes are the major food items for various species of migrant and local migrant species of shorebirds during their migration ( Pandiyan and Asokan, 2015 ). The shorebirds are heavily affected with heavy metals through their dietary preferences ( Pandiyan et al, 2020 ). Therefore the current study is targeted to assess the level of heavy metals in water, sediment, benthic organisms, prawns and fishes to understand the current status of the PCWL (Ramsar site) since the sanctuary is supporting numerous species of migrant and endangered species of shorebirds annually.…”

Section: Introductionmentioning

confidence: 99%

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An assessment of level of heavy metals pollution in the water, sediment and aquatic organisms: A perspective of tackling environmental threats for food security

Pandiyan¹,

Mahboob

Govindarajan

et al. 2021

Saudi Journal of Biological Sciences

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Pollution is severely threatening the wetland habitats. Heavy metals are one among of the major pollutants in wetland habitats. The cadmium (Cd), copper (Cu), chromium (Cr), cobalt (Co), lead (Pb), mercury (Hg), nickel (Ni) and zinc (Zn), were assessed in the water, sediment, benthic species (polychaetes, mollusc and crustaceans), prawn and fishes. The assessment of heavy metals was done by using double-beam Atomic Absorption Spectrophotometer (AAS). The Hg, Cr and Co were greater in sediment, Ni and Cd were higher in polychaetes and molluscs respectively. However, the Cu and Pb greater in crabs and the Zinc was greater in fishes. The concentration of metals showed significant differences among the various sources examined (P < 0.05) except Cr (P > 0.05). The inter-correlational analysis among the metals assessed from the various sources showed that the Cr and Pb not correlated among the eight metals examined. However, the Cu and Co were correlated with Hg (r = 0.307) and (r = 0.788) respectively. The nickel was correlated with Hg (r = 0.367), Cu (r = 0.362) and Co (r = 0.432). The Zinc was correlated with the Cd (r = 0.331) and Hg (r = 0.737). However, correlation of metals among the different sources shown that the metals of polychaetes correlated with sediment r = 0.637, the metals of crabs correlated with the sediment and polychaetes r = 0.630 and r = 842 respectively, the metals of molluscs was also correlated with sediment (r = 0.636), polychaetes (r = 0.889) and crabs (r = 0.894). In addition to that the metals of prawns was correlated with the polychaetes (r = 839), crabs (r = 0.628) and molluscs (r = 0.634). The metals of fishes correlated with polychaetes (r = 0.529), crabs (r = 0.710), molluscs (r = 0.493) and prawns (r = 0.593). Indeed the multiple regression model explained that the metals of sediments influence the accumulation of metals in biotic species such as polychaetes, molluscs, crustaceans, prawns and fishes with 84% (F = 21.079; p < 0.001).The order of the heavy metals in the water, sediment and biotic species was Hg > Pb > Ni > Cr > Zn > Co > Cu > Cd. The study found that the level of heavy metals at various sources in the sanctuary is showing considerable warning and the sanctuary is required intensive assessment on various aspects of pollution since the Point Calimere Wildlife Sanctuary is supporting several species of migratory and endangered shorebirds seasonally.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%