Assessment of heavy metal accumulation in freshwater fish of Dongting Lake, China: Effects of feeding habits, habitat preferences and body size

Jiang, Xiaoming; Wang, Jun; Pan, Baozhu; Li, Dianbao; Wang, Yuzhu; Liu, Xinyuan

doi:10.1016/j.jes.2021.05.004

Cited by 78 publications

(20 citation statements)

References 45 publications

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“…Indeed, we found a negative relationship with the length for Cu (in P. clarkii) and Mg (in I. punctatus and S. glanis) and positive for Fe (in S. glanis), Hg (in L. gibbosus), and Cr (in I. punctatus). Partially in line with previous studies (Merciai et al 2014;Jiang et al 2022), we found negative relationships with the length for two essential metals (Cu in P. clarkii and Mg in I. punctatus and S. glanis) and positive relationships for two essential (Fe in S. glanis and Cr in I. punctatus) and one nonessential metal (Hg in L. gibbosus). Negative relationships could be indicative of faster metabolism in younger fish compared to older ones (Léopold et al 2015) and higher tissue growing rate than metal uptake rate (Merciai et al 2014;Dragun et al 2016).…”

Section: Discussionsupporting

confidence: 92%

“…Negative relationships are generally more frequent for alkaline elements (e.g., Li, Na, and K), whereas positive relationships are more commonly found for transition elements (e.g., Mn, Fe, and Co; Dragun et al 2016;Jiang et al 2022). Indeed, we found a negative relationship with the length for Cu (in P. clarkii) and Mg (in I. punctatus and S. glanis) and positive for Fe (in S. glanis), Hg (in L. gibbosus), and Cr (in I. punctatus).…”

Section: Discussionmentioning

confidence: 99%

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Metal accumulation in relation to size and body condition in an all-alien species community

Balzani

Kouba

Tricarico

et al. 2021

Environ Sci Pollut Res

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Metal pollution is one of the main environmental threats in freshwater ecosystems. Aquatic animals can accumulate these substances and transfer them across the food web, posing risks for both predators and humans. Accumulation patterns strongly vary depending on the location, species, and size (which in fish and crayfish is related to age) of individuals. Moreover, high metal concentrations can negatively affect animals’ health. To assess the intraspecific relationship between metal accumulation and size and health (proxied by the body condition) of individuals, the concentration of 14 metals (Al, As, Cd, Co, Cr, Cu, Fe, Hg, Mg, Mn, Ni, Pb, Se, Zn) was analyzed in six alien species from the highly anthropogenically altered Arno River (Central Italy): five fish (Alburnus alburnus, Pseudorasbora parva, Lepomis gibbosus, Ictalurus punctatus, and Silurus glanis) and one crayfish (Procambarus clarkii). We found that in P. clarkii, Cu was negatively related to size, as well as Al in L. gibbosus and Mg for adult I. punctatus. Positive size-dependent relationships were found for Hg in L. gibbosus, Fe in S. glanis, and Cr in juvenile I. punctatus. Only Co and Mg in S. glanis were found to negatively correlate with individual health. Since metal concentrations in animal tissue depend on trade-offs between uptake and excretion, the few significant results suggest different types of trade-offs across different species and age classes. However, only predatory fish species (L. gibbosus, I. punctatus, and S. glanis) presented significant relationships, suggesting that feeding habits are one of the primary drivers of metal accumulation.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Metal accumulation in relation to size and body condition in an all-alien species community

Balzani

Kouba

Tricarico

et al. 2021

Environ Sci Pollut Res

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“…Moreover, the average concentration of metals in demersal fishes was lower than the benthic fishes. However, the concentrations of metals in sampled fishes differed largely, which might be a result of different ecological needs, metabolism, and feeding patterns of the examined fishes [ 52 , 53 ]. Many studies reported the metal concentrations in fishes depend mostly on their habitat type [ 52 , 54 ].…”

Section: Resultsmentioning

confidence: 99%

Metals Bioaccumulation in 15 Commonly Consumed Fishes from the Lower Meghna River and Adjacent Areas of Bangladesh and Associated Human Health Hazards

Hossain

Tanjin

Rahman

et al. 2022

Toxics

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The lower Meghna River, the easternmost part of the Ganges Delta, faces severe anthropogenic perturbations as it receives a huge discharge and industrial effluents. To measure the metal concentrations and human health hazards, edible tissues of 15 commercially important fish species were collected from the local fish markets and the lower Meghna River, Bangladesh. Trace and heavy metals such as Pb, Cr, Cu, Zn, Mn, Fe, Hg, Ni, Ca, Co, Se, Rb, Sr, and As were detected using the Energy Dispersive X-ray Fluorescence (EDXRF) method. The hierarchy of mean metal concentrations obtained was: Fe (162.198 mg/kg) > Zn (113.326 mg/kg) > Ca (87.828 mg/kg) > Sr (75.139 mg/kg) > Cu (36.438 mg/kg) > Se (9.087 mg/kg) > Cr (7.336 mg/kg) > Mn (6.637 mg/kg) > Co (3.474 mg/kg) > Rb (1.912 mg/kg) > Hg (1.657 mg/kg) > Ni (1.467 mg/kg) > Pb (0.521 mg/kg) > As (BDL). Based on the metal concentration obtained, the carnivorous species contained more metals than omnivores and herbivores. Similarly, the euryhaline and benthic feeder fishes had more metals than the stenohalines and demersal fishes. The metal pollution index (MPI) suggested that the highly consumed fish species Tilapia (Oreochromis mossambicus) and Rui (Labeo rohita) accumulated higher metals than other fishes. Both the Targeted Hazard Quotient (THQ) and Hazard Index (HI) values for adult and child consumers were <1, indicating that consumers would not experience the non-carcinogenic health effects. Although children were more susceptible than adults, carcinogenic risk (CR) exposure of Cr for all the consumers was found in the acceptable range (10−6 to 10−4), but the CR exposure of Pb was negligible for all the consumers. The correlation, principal component analysis (PCA), and cluster analysis were conducted to identify the sources of metals identified from the fish tissue. The results indicated that the probable sources of the pollutants were anthropogenic, arising from agricultural activities, electroplating materials, and lubricants used near the study area. However, the present study showed a different metal concentration in the samples at different levels but within the threshold levels non-carcinogenic and carcinogenic health risks; hence, the fishes of the area, in general, are safe for human consumption.

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“…During the processing of freshwater fish, especially in the processing of minced fish, large amounts of scraps such as fish heads, fish bones, fish tails, fish skins, and offal are produced [ 2 ]. Previously, it was found that the meat extraction rate of seven kinds of bulk freshwater fish, namely mackerel, grass carp, silver carp, bighead carp, crucian carp and bream, was the highest for mackerel (54.33%) and the lowest for bighead carp (32.80%), while the remaining 45% to 67% were fish head and fish bone scraps [ 3 ]. At present, these scraps are not utilized as value-added products, except a limited portion of them are used for processing feed fish meal, and the majority of them are directly discarded, which not only wastes a lot of resources but also pollutes the environment and increases the cost of environmental waste management [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Different Volatile Extraction Methods for the Identification of Fishy Off-Odor in Fish By-Products

et al. 2022

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This study was conducted to analyze volatile odor compounds and key odor-active compounds in the fish soup using fish scarp and bone. Five extraction methods, including solid-phase microextraction (SPME), dynamic headspace sampling (DHS), solvent-assisted flavor evaporation (SAFE), stir bar sorptive extraction (SBSE), liquid-liquid extraction (LLE), were compared and SPME was finally selected as the best extraction method for further study. The volatile odor compounds were analyzed by gas chromatography-olfactometry-mass spectrometry (GC-O-MS) and comprehensive two-dimensional gas chromatography-olfactometry-mass spectrometry (GC × GC-O-MS) techniques, and the key odor-active compounds were identified via aroma extract dilution analysis (AEDA) and relative odor activity value (r-OAV) calculation. A total of 38 volatile compounds were identified by GC-O-MS, among which 10 were declared as odor-active compounds. Whereas 39 volatile compounds were identified by GC × GC-O-MS, among which 12 were declared as odor-active compounds. The study results revealed that 1-octen-3-one, 2-pentylfuran, (E)-2-octenal, 1-octen-3-one, hexanal, 1-octen-3-ol, 6-methylhept-5-en-2-one, (E,Z)-2,6-nondienal and 2-ethyl-3,5-dimethylpyrazine were the key odor-active compounds in the fish soup.

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Assessment of heavy metal accumulation in freshwater fish of Dongting Lake, China: Effects of feeding habits, habitat preferences and body size

Cited by 78 publications

References 45 publications

Metal accumulation in relation to size and body condition in an all-alien species community

Metal accumulation in relation to size and body condition in an all-alien species community

Metals Bioaccumulation in 15 Commonly Consumed Fishes from the Lower Meghna River and Adjacent Areas of Bangladesh and Associated Human Health Hazards

Comparison of Different Volatile Extraction Methods for the Identification of Fishy Off-Odor in Fish By-Products

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