Contaminations of Metal in Tissues of Siberian Gull Larus heuglini: Gender, Age, and Tissue Differences

Hoshyari, Ebrahim; Pourkhabbaz, Alireza; Mansouri, Borhan

doi:10.1007/s00128-012-0655-2

Cited by 27 publications

(11 citation statements)

References 31 publications

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“…When this factor exceeds 1, it is considered acute exposure, whereas a ratio below 1 indicates chronic exposure to low levels of Cd [ 54 ]. The ratios in the birds we examined ranged from 0.56 for Gadwall to 0.97 for Common Teal, indicating chronic Cd exposure, as has been reported in a number of avian species [ 6 , 33 , 40 ]. Based on the results of concentrations in the environment (Figs.…”

Section: Resultssupporting

confidence: 52%

Metal Concentrations in Tissues of Gadwall and Common Teal from Miankaleh and Gomishan International Wetlands, Iran

Sinkakarimi

Binkowski

Hassanpour³

et al. 2018

Biol Trace Elem Res

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Miankaleh and Gomishan International Wetlands are important wintering areas for waterbirds in the Caspian Sea region. Previous studies revealed increased exposure to metals in some species of waterbirds using these wetlands. In this study, we examined concentrations of cadmium (Cd), chromium (Cr), iron (Fe), lead (Pb), and zinc (Zn) in kidneys, liver, and pectoral muscle of wintering Gadwall (Anas strepera) and Common Teal (Anas crecca) collected in 2012. In addition, we measured concentrations of these elements in water and sediments from the collection sites. The genders differed in only one element/tissue combination, i.e., concentrations of Fe were greater in the livers of males. Concentrations of elements observed in Gadwall were generally higher than in Common Teal; only renal Cr and muscle Zn did not differ between species. Mean Cd concentrations in Gadwall exceeded background levels, reaching 1.94 μg/g ww in kidneys and 1.09 μg/g ww in liver. Similarly, Pb concentrations in Gadwall were also elevated (4.14 μg/g ww in kidneys, 3.22 μg/g ww in liver). Concentrations of other metals were within ranges commonly found in waterfowl. Concentrations of elements in the environment were elevated above background and comparable with the data obtained for this region by other scientists. However, these levels were deemed to not be great enough to pose an acute health risk to waterfowl. Given increased concentrations of some metals in duck tissues, further inquiry into the source of the exposure is needed for this area.

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Section: Resultssupporting

confidence: 52%

Metal Concentrations in Tissues of Gadwall and Common Teal from Miankaleh and Gomishan International Wetlands, Iran

Sinkakarimi

Binkowski

Hassanpour³

et al. 2018

Biol Trace Elem Res

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“…In contrast, environmental contamination with lead is still very high in some countries. In recent studies carried out in the Hara forests of Qeshm (Iran), the concentration of lead in the liver of the Siberian gull ( Larus heuglini ) was 5.1 ± 0.8 μg/g dw (Hoshyari et al 2012 ). In the case of nestlings of the black-tailed gull ( Larus crassirostris ) from Hongdo Island and Rando Island (Korea), the concentrations of lead in the liver were 4.82 ± 1.80 μg/g dw and 3.71 ± 2.17 μg/g dw (Kim and Oh 2014b ), respectively.…”

Section: Resultsmentioning

confidence: 99%

Lead (Pb) in the tissues of Anatidae, Ardeidae, Sternidae and Laridae of the Northern Hemisphere: a review of environmental studies

Korbecki

Gutowska

Chlubek

et al. 2019

Environ Sci Pollut Res

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Due to the ability of birds to travel long distances in the air, the potential feeding area of each individual is much larger than that of typical terrestrial animals. This makes birds a convenient indicator of environmental lead (Pb) pollution over large areas, in particular areas of inland and coastal waters. The aim of this study was to assess the concentrations of Pb in various organs of water birds from a variety of locations. The focus was on ducks, geese and swans ( Anatidae ); herons and egrets ( Ardeidae ); terns ( Sternidae ); and gulls ( Laridae ). This article describes the level of lead in the most commonly studied tissue types: feathers, bones and the liver. The study also presents data concerning the concentration of lead in the eggs of water birds. The highest levels of lead pollution can be observed in China and Korea, related to their high level of industrialization. In Iran too, environmental lead pollution is high, likely due to the developed petrochemical industry. Lead pollution in Japan, as well as in Western European countries (Spain, France, Italy), seems to be much lower than in China, India or Iran. Nevertheless, the level of pollution in Europe is higher than satisfactory, despite the introduction of a number of bans related to, for example, the use of leaded petrol or lead-containing paints. Finally, the USA and Canada appear to be the areas with the lowest lead pollution, possibly due to their low population densities.

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“…Digestion was performed on a hot plate at 200°C. Afterward, the digested samples were diluted by 25 mL of deionized water (Hoshyari et al, 2012). The content of Cd in different tissues was determined by flame atomic absorption spectrophotometer (AA-670G model, Shimadzu, Tokyo, Japan).…”

Section: Methodsmentioning

confidence: 99%

Impaired follicular development and endocrine disorders in female rats by prepubertal exposure to toxic doses of cadmium

et al. 2020

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Cadmium (Cd) has been associated with several physiological problems including reproductive and endocrine system dysfunction resulting in temporary infertility. The principal objective of this project was to investigate the effects of prepubertal exposure to toxic doses of Cd on puberty onset, the endocrine system, and follicular development. For this purpose, 16 female Sprague-Dawley rats weaned on postnatal day (PND) 21 were randomly divided into 4 groups ( n = 4 per group). The treatments were as follows: 0, 25, 50, and 75 mg/kg/day of cadmium chloride (CdCl2) by oral gavage from PND 21 to observation of first vaginal opening (VO). The results demonstrated that prepubertal exposure to different doses of CdCl2 delays the age of VO, first diestrus, and first proestrus via altering the concentrations of estradiol and progesterone. The low level of these steroid hormones contributed to lower differentiation and maturation of follicles and it finally led to reduced ovarian reservoir of follicles and impaired follicular development. The number of atretic follicles and secondary follicles with premature cavity increased in rats that received a high dose of CdCl2, whereas the number of secondary follicles and corpora luteum decreased in the same circumstances. Taken together, these data suggest that prepubertal exposure to toxic doses of Cd delays the onset of puberty via disorderliness in the concentration of steroid hormones and reduces the ovarian reservoir of follicles, as well as folliculogenesis.

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Contaminations of Metal in Tissues of Siberian Gull Larus heuglini: Gender, Age, and Tissue Differences

Cited by 27 publications

References 31 publications

Metal Concentrations in Tissues of Gadwall and Common Teal from Miankaleh and Gomishan International Wetlands, Iran

Metal Concentrations in Tissues of Gadwall and Common Teal from Miankaleh and Gomishan International Wetlands, Iran

Lead (Pb) in the tissues of Anatidae, Ardeidae, Sternidae and Laridae of the Northern Hemisphere: a review of environmental studies

Impaired follicular development and endocrine disorders in female rats by prepubertal exposure to toxic doses of cadmium

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