Determination of mercury and vanadium concentration in Johnius belangerii (C) fish in Musa estuary in Persian Gulf

Jaafarzadeh, Neemat; Ravanbakhsh, Maryam; Ramezani, Zahra; Ahmadi, Mehdi; Angali, Kambiz Ahmadi; Javid, Ahmad Zare

doi:10.1016/j.marpolbul.2015.05.036

Cited by 34 publications

(6 citation statements)

References 50 publications

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“…This resulted in V concentrations in large fish at the top of the food chain that were very low, similar to values reported for largemouth bass from a lake in Alabama, USA (<0.01 mg/kg wet weight, Ikem et al 2003), juvenile northern pike from a boreal lake (0.112 mg/kg dry weight, Kelly and Janz 2009) and fish communities in the Caspian Sea (0.008 to 0.064 mg/kg dry weight, Anan et al 2005). These were much lower than croaker Johnius belangerii analyzed from the Persian Gulf, where concentrations were between 0.9 and 5.9 mg/kg wet weight (Fard et al 2015) and fishes from an Iranian wetland (1.6 to 9.6 mg/kg, Hosseini Alhashemi et al 2012). The latter values are due to a high water concentration in the area (0.234 mg/L) that led to low BAF values (7 to 41 L/kg) that were similar to what we observed for this element (Table 1).…”

Section: Discussioncontrasting

confidence: 55%

Vanadium and thallium exhibit biodilution in a northern river food web

et al. 2019

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Trophic transfer of contaminants dictates concentrations and potential toxic effects in top predators, yet biomagnification behaviour of many trace elements is poorly understood. We examined concentrations of vanadium and thallium, two globally-distributed and anthropogenically-enriched elements, in a food web of the Slave River, Northwest Territories, Canada. We found that tissue concentrations of both elements declined with increasing trophic position as measured by  15 N. Slopes of log [element] versus  15 N regressions were both negative, with a steeper slope for V (-0.369) compared with Tl (-0.099). These slopes correspond to declines of 94% with each step in the food chain for V and 54% with each step in the food chain for Tl. This biodilution behaviour for both elements meant that concentrations in fish were well below values considered to be of concern for the health of fish-eating consumers.Further study of these elements in food webs is needed to allow a fuller understanding of biomagnification patterns across a range of species and systems.

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Section: Discussioncontrasting

confidence: 55%

Vanadium and thallium exhibit biodilution in a northern river food web

et al. 2019

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“…Yi, Wang, Zhang, Yu, and Duan () reported that Hg levels in fish from the Yangtze River, China ranged from 0.0011 to 0.048 µg/g, which seems to be very close to our Hg value found in the species tested in the current study. A much higher mean level of 3.154 µg/g for Hg has been reported in fish caught from the Persian Gulf, Iran (Fard et al., ), while a lower mean Hg level of 0.004 µg/g was reported by Elkady, Sweet, Wade, and Klein () in the flesh of O. niloticus collected from Manzala Lake, Egypt.…”

Section: Resultsmentioning

confidence: 77%

Heavy Metal Residues in Some Fishes from Manzala Lake, Egypt, and Their Health‐Risk Assessment

Sallam

Abd-Elghany

Mohammed

2019

Journal of Food Science

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A total of 600 freshly caught fish samples (200 each of Nile tilapia, flathead grey mullet, and African catfish) were collected from Manzala Lake, Egypt, and analyzed for determination of heavy metal residues using an atomic absorption spectrophotometer. Metal concentrations (µg/g wet weight) were detected in all examined samples in quantities of 0.045, 0.0145, and 0.017 µg/g for Hg; 0.511, 0.621, and 0.568 µg/g for As; 0.704, 0.635, and 0.64 µg/g for Pb; and 0.024, 0.006, and 0.020 µg/g for Cd in Nile tilapia, flathead grey mullet, and African catfish, respectively. The mean concentrations of Hg, Pb, and Cd among the three fish species tested followed the order Nile tilapia > African catfish > flathead grey mullet; meanwhile, As concentration followed the order flathead grey mullet > African catfish > Nile tilapia. The contamination levels of Hg and Cd showed significant differences between summer and winter in the three different fish species examined. Both the mullet and catfish tested revealed significant negative correlations between fish size and their residual levels of Hg, Pb, and Cd. Health‐risk assessment indices suggesting that consuming such fishes from Manzala Lake could have a potential health hazard to consumers.

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“…Stored samples were thawed and then assayed using commercial kits (Pars Azmoon, Iran) and an automatic micro plate Reader (EON‐BIOTEK, America) for glucose, total cholesterol, and triglycerides. Concentration of V in plasma, was determined using the method of (Fard et al., ) using an atomic absorption spectrophotometer, Carl Zeiss Jena GmbH—AAS 5 EA (Germany), equipped with a graphite oven and an automatic sampler.…”

Section: Methodsmentioning

confidence: 99%

Effects of vanadium supplementation on performance, some plasma metabolites and glucose metabolism in Mahabadi goat kids

Zarqami

Ganjkhanlou

Zali

et al. 2017

Animal Physiology Nutrition

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This experiment was conducted to investigate the effects of vanadium (V) supplementation on performance, some plasma metabolites (cholesterol and triglycerides) and glucose metabolism in Mahabadi goat kids. Twenty-eight male kids (15 ± 2 kg body weight) were fed for 14 weeks in a completely randomized design with four treatments. Treatments were supplemented with 0 (control), 1, 2, and 3 mg V as vanadyl sulfate/animal/daily. On day 70, an intravenous glucose tolerance test (IVGTT) was conducted. Dry matter intake did not change by V supplementation, but adding V quadraticaly improved feed efficiency (p = .03) and tended to increase average daily gain (Quadratic, p = .09). Blood metabolites were unaffected by V supplementation, except for concentration of glucose in plasma, which decreased linearly as supplemental V level increased (p = .02). Plasma glucose concentrations at 15, 30, 45 and 60 min after glucose infusion were decreased in a quadratic fashion in response to increasing supplemental V level (p < .01). The IVGTT indicated that the kids supplemented with 2 mg V had higher glucose clearance rate (K) and lower glucose half-life (T ; p < .05). Glucose area under the response curve from 0 to 60 min and 0 to 180 min after glucose infusion were decreased linearly (p = .04) by supplemental V. The results suggested that moderate supplementation of V may improve glucose utilization and feed efficiency in fattening kids.

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Determination of mercury and vanadium concentration in Johnius belangerii (C) fish in Musa estuary in Persian Gulf

Cited by 34 publications

References 50 publications

Vanadium and thallium exhibit biodilution in a northern river food web

Vanadium and thallium exhibit biodilution in a northern river food web

Heavy Metal Residues in Some Fishes from Manzala Lake, Egypt, and Their Health‐Risk Assessment

Effects of vanadium supplementation on performance, some plasma metabolites and glucose metabolism in Mahabadi goat kids

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