Mercury accumulation in barred sand bass (Paralabrax nebulifer) near a large wastewater outfall in the Southern California Bight

Phillips, Charles R.; Heilprin, Daniel J.; Hart, Michael

doi:10.1016/s0025-326x(96)00063-x

Cited by 19 publications

(8 citation statements)

References 20 publications

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“…For age, no significant correlation was detected with T-Hg for Malabar jack ( ϭ 0.119, p ϭ 0.643), bigeye scad ( ϭ 0.109, p ϭ 0.708), or king solider bream ( ϭ 0.241, p ϭ 0.309). The positive relationships between T-Hg and MeHg and length/weight for these fish indicates that T-Hg levels increase as they grow in size, a trend frequently observed for fish [5][6][7]. Neither T-Hg nor MeHg concentrations were related to their age, although it covered a range of 3 to 11 years for Malabar jack, 3 to 13 years for bigeye scad, and 3 to 14 for king solider bream, probably due to small sample size (n ϭ 12-13) and limited sizes of individuals.…”

Section: Mercury Biomagnificationsupporting

confidence: 60%

“…In more than 80 individuals of barred sand bass (Paralabrax nebulifer), Philip et al [5] described a moderate correlation (r 2 ϭ 0.34) between age and T-Hg. For age, no significant correlation was detected with T-Hg for Malabar jack ( ϭ 0.119, p ϭ 0.643), bigeye scad ( ϭ 0.109, p ϭ 0.708), or king solider bream ( ϭ 0.241, p ϭ 0.309).…”

Section: Mercury Biomagnificationmentioning

confidence: 99%

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Evaluating Mercury Biomagnification in Fish from a Tropical Marine Environment Using Stable Isotopes (δ13C and δ15N)

Al-Reasi¹,

Ababneh²,

Lean³

2007

Environ Toxicol Chem

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Concentrations of total mercury (T‐Hg) and methylmercury (MeHg) were measured in zooplankton and 13 fish species from a coastal food web of the Gulf of Oman, an arm of the Arabian Sea between Oman and Iran. Stable isotope ratios (δ13C and δ15N) also were determined to track mercury biomagnification. The average concentration of T‐Hg in zooplankton was 21 ± 8.0 ng g−1 with MeHg accounting 10% of T‐Hg. Total mercury levels in fish species ranged from 3.0 ng g−1 (Sardinella longiceps) to 760 ng g−1 (Rhizoprionodon acutus) with relatively lower fraction of MeHg (72%) than that found in other studies. The average trophic difference (△13C) between zooplankton and planktivorous fish (Selar crumenopthalmus, Rastrelliger kanagurta, and S. longiceps) was higher (3.4%0) than expected, suggesting that zooplankton may not be the main diet or direct carbon source for these fish species. However, further sampling would be required to compensate for temporal changes in zooplankton and the influence of their lipid content. Trophic position inferred by δ15N and and slopes of the regression equations (log10[T‐Hg] = 0.13[δ15N] — 3.57 and log10[MeHg] = 0.14[δ15N] — 3.90) as estimates of biomagnification indicate that biomagnification of T‐Hg and MeHg was lower in this tropical ocean compared to what has been observed in arctic and temperate ecosystems and tropical African lakes. The calculated daily intake of methylmercury in the diet of local people through fish consumption was well below the established World Health Organization (WHO) tolerable daily intake threshold for most of the fish species except Euthynnus affinis, Epinephelus epistictus, R. acutus, and Thunnus tonggol, illustrating safe consumption of the commonly consumed fish species.

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Section: Mercury Biomagnificationsupporting

confidence: 60%

Section: Mercury Biomagnificationmentioning

confidence: 99%

Evaluating Mercury Biomagnification in Fish from a Tropical Marine Environment Using Stable Isotopes (δ13C and δ15N)

Al-Reasi¹,

Ababneh²,

Lean³

2007

Environ Toxicol Chem

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“…The amount of Hg in the organism is affected by its position in the food chain [4-6], its size, age [2, 5, 7, 8] and duration of exposure [9]. There is also an association between Hg concentrations and fish weight [10, 11].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Mercury Distribution Between Liver and Muscle – A Biomonitoring of Fish from Lightly and Heavily Contaminated Localities

Havelková

Dušek

Némethová

et al. 2008

Sensors

111

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Tissue samples from 1,117 fish of 25 species were collected from 1991 through 1996 at 13 locations along the River Elbe. The principal indicator species were perch (Perca fluviatilis) (n=118), chub (Leuciscus cephalus L.) (n=113) and roach (Rutilus rutilus) (n=138). Mercury (Hg) concentrations in muscle and liver were determined by atomic absorption spectrometry. The liver/muscle index in three indicator species from heavily contaminated and lightly contaminated localities were significantly different. In fish from heavily contaminated localities, Hg was deposited preferentially in the liver (the depository for inorganic and organic forms of Hg), while in lightly contaminated areas, it was deposited preferentially in muscle.

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“…Higher Hg concentrations occurred in the liver compared to muscle tissues regardless of the area sampled. In general, most previous studies have also shown a positive correlation between Hg concentration and fish length, suggesting biomagnification (Adams, 2004;Pinho et al, 2002;Joiris et al, 2000;Phillips et al, 1997).…”

Section: Introductionmentioning

confidence: 77%

Total-Hg and organic-Hg in Cephalopholis fulva (Linnaeus, 1758) from inshore and offshore waters of NE Brazil

Lacerda

Santos

Campos³

et al. 2007

Braz. J. Biol.

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To investigate whether source proximity or bioavailability is the major factor controlling both Hg concentration and Hg speciation in marine fishes, total-and organic-Hg content in muscle and liver tissues from different populations of Cephalopholis fulva (piraúna) from inshore and offshore waters of the Brazilian northeastern coast were analyzed. Average total-Hg in muscle (104 ng.g -1 w.w.) and liver (2,865 ng.g -1 w.w.) tissues, as well as organic-Hg concentrations in muscle (169 ng.g -1 w.w.) and liver (1,038 ng.g -1 w.w.), were much higher in the offshore population of C. fulva than in the inshore ones. In the inshore population total-Hg and organic-Hg average concentrations in muscle tissue were similar and reached only 49 ng.g -1 w.w., while in liver they reached 412 ng.g -1 w.w. for total-Hg and 180 ng.g -1 w.w., for organic-Hg. Concentrations of both Hg species in the two populations were higher in liver than in muscle. The average percentage contribution of organic-Hg to the total Hg content was higher in muscle (98-100%) than in liver (42-53%), but similar between the two populations. Total-Hg and organic-Hg concentrations in muscle and liver from the offshore population showed significant (P < 0.05) positive correlation with fish length. However, in the inshore population only the total-Hg and organic-Hg in muscle tissues correlate significantly with fish size. Although the coastal environments are enriched in total Hg relative to open waters, the significant higher Hg concentrations in the offshore population of C. fulva and the significant correlation found between organic-Hg in liver with fish size suggest higher bioavailability of Hg in offshore waters relative to inshore ones.Keywords: total mercury, organic mercury, fish populations, Cephalopholis fulva, NE Brazil.Mercúrio total e mercúrio orgânico em Cephalopholis fulva (Linnaeus, 1758) em águas costeiras e mar aberto no nordeste do Brasil ResumoAs concentrações de Hg-total e Hg-orgânico foram determinadas em diferentes populações de Cephalopholis fulva (piraúna) capturadas em águas costeiras e em bancos oceânicos do litoral nordeste do Brasil. A comparação entre as duas populações permitiu investigar o efeito da proximidade de fontes sobre as concentrações, e a especiação de Hg em músculo e fígado desta espécie. As concentrações médias de Hg-total em músculo (104 ng.g -1 w.w.) e fígado (2,865 ng.g -1 w.w.), assim como as concentrações de Hg-orgânico em músculo (169 ng.g -1 w.w.) e fígado (1,038 ng.g -1 w.w.) foram muito maiores na população capturada nos bancos oceânicos do que na população costeira. Nesta, as concentrações médias de Hg-total e Hg-orgânico na musculatura de C. fulva foram similares e baixas (49 ng.g -1 w.w.), enquanto que atingiram 412 ng.g -1 w.w. de Hg-total e 180 ng.g -1 w.w. de Hg-orgânico no fígado destes animais. As concentrações das duas espécies de Hg foram significativamente maiores no fígado do que na musculatura. A contribuição percentual média de Hg-orgânico para a concentração total de Hg nos peixes foi m...

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Mercury accumulation in barred sand bass (Paralabrax nebulifer) near a large wastewater outfall in the Southern California Bight

Cited by 19 publications

References 20 publications

Evaluating Mercury Biomagnification in Fish from a Tropical Marine Environment Using Stable Isotopes (δ13C and δ15N)

Evaluating Mercury Biomagnification in Fish from a Tropical Marine Environment Using Stable Isotopes (δ13C and δ15N)

Comparison of Mercury Distribution Between Liver and Muscle – A Biomonitoring of Fish from Lightly and Heavily Contaminated Localities

Total-Hg and organic-Hg in Cephalopholis fulva (Linnaeus, 1758) from inshore and offshore waters of NE Brazil

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