Assessment of the essential element and heavy metal content of edible fish muscle

Carvalho, Luísa; Santiago, Susana; Nunes, María Leonor

doi:10.1007/s00216-004-3005-3

Cited by 153 publications

(101 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…No particular source estuary potentially increases the contamination of adult stocks. On the Portuguese coast, trace metal contamination in adult S. solea has been reported to be very low (Carvalho et al, 2005); however, for the remaining species no data are available.…”

Section: Discussionmentioning

confidence: 99%

Trace metals (Cu, Zn, Cd and Pb) in juvenile fish from estuarine nurseries along the Portuguese coast

Vasconcelos¹,

Patrick²,

Maia³

et al. 2011

Sci. Mar.

View full text Add to dashboard Cite

SUMMARY: Organic and inorganic pollution can impact organisms directly and affect condition, growth and survival of juvenile fish which use estuaries as nurseries, and thereby affect marine adult populations quantitatively and qualitatively. Trace element contamination (Cu, Zn, Cd, Pb) in juveniles of commercial fish Solea solea, Solea senegalensis, Platichthys flesus, Diplodus vulgaris and Dicentrarchus labrax collected in putative nurseries of the main Portuguese estuaries (with diverse intensities and sources of anthropogenic pressures) was determined via atomic absorption spectrometry. Contamination was significantly different among species. Similar levels of contamination were found among estuaries, except for D. vulgaris. Cu and Zn concentrations ranged from 1.0 to 2.1 and 14 to 59 µg g -1 muscle dry weight respectively; while Cd and Pb concentrations were very low. The results indicate that juvenile migration to off-shore habitats is associated with low export of contamination, and no particular estuary increases the potential contamination of adult stocks. This knowledge is of the utmost importance in view of the ecological and economical value of these species and their use of estuarine areas as nurseries.Keywords: juveniles, nursery grounds, populations, anthropogenic effects, heavy metals. RESUMEN: Metales traza (Cu, Zn, Cd y Pb) en peces juveniles de las guarderías estuáricas a lo largo de la costa portuguesa. -La contaminación orgánica e inorgánica puede afectar a los organismos, a saber al estado fisiológico, crecimiento y supervivencia de los peces juveniles los cuales utilizan los estuarios como guarderías; afectando de forma cuantitativa y cualitativa a la poblaciones marinas adultas. La contaminación de elementos traza (Cu, Zn, Cd, Pb) en las formas juveniles de los peces comerciales Solea solea, Solea senegalensis, Platichthys flesus, Diplodus vulgaris y Dicentrarchus labrax recolectados en guarderías putativas de los principales estuarios portugueses (con diversos tipos e intensidades de presiones antropogénicas) fueron determinados por espectrometría de absorción atómica. La contaminación era significativamente diferente entre especies. Sobre todo se encontraron niveles similares de contaminación entre estuarios, excepto para D. vulgaris. Las concentraciones de Cu y Zn oscilaban desde 1.0 a 2.1 y desde 14 a 59 µg g -1 peso seco muscular, respectivamente, mientras que las concentraciones de Cd y Pb eran muy bajas. Los resultados indican que la migración de los juveniles a mar abierto está asociada a la baja exportación de la contaminación y que los estuarios no amplifican particularmente el potencial de contaminación de los adultos. En vista del valor ecológico y económico de estas especies y del uso de las zonas estuáricas como guarderías, este conocimiento es de vital importancia.

show abstract

Section: Discussionmentioning

confidence: 99%

Trace metals (Cu, Zn, Cd and Pb) in juvenile fish from estuarine nurseries along the Portuguese coast

Vasconcelos¹,

Patrick²,

Maia³

et al. 2011

Sci. Mar.

View full text Add to dashboard Cite

show abstract

“…In this discussion emphasis will be given to t nutritional metals and the other metal pollutants will not be mentioned. In their paper, (Carvalho, Santiago, and Nunes 2005) stated that fish are an important source of lipids, proteins, liposoluble vitamins and polyunsaturated fatty acids that are important in assisting to reduce hypertension, cancer risk and coronary heart disease.…”

Section: Metals In Fishmentioning

confidence: 99%

Nutritional Metals in Foods by AAS

Millikan¹

2012

Atomic Absorption Spectroscopy

View full text Add to dashboard Cite

“…Although it is a universal and precise technique, it has some flaws, especially when it's about organic materials (tissues), maybe the most remarkable flaw is the amount of material and its sample destructiveness (Mugica et al, 2003). These problems come with some factors to be considered: the sample must be vast, it can only be measured once, and it becomes a bigger issue when it's about a protected specie tissue's sample (Carvalho et al, 2005). In this paper, we proposed as an alternative methodology the X ray photoelectron spectroscopy (XPS) that could work with a minimum amount of material that will not be destructed in the analysis.…”

Section: Introductionmentioning

confidence: 99%

Direct XPS Analysis of Biological Materials for Environmental Purposes

Bedoya¹

2017

Appl Ecol Env Res

View full text Add to dashboard Cite

Abstract. Fish tissues were analyzed directly with an X-ray photoelectron spectroscopy (XPS) system in order to find pollutant elements that may be bioaccumulated in the fish's body in a river that is in contact with the mining industry. XPS method could be used as a first technique to find a wide gamma of elements before using conventional methods. Fish tissue was homogenized in order to make it able to be analyzed by a surface analysis, Whole fishes were analyzed by two homogenizing methods: incineration at 350ºC, and by dehydration and crushing in a ball mill. Both methods tested show different results in the same samples. It has been observed that in the incinerated samples the bonding energy is more intense, this could be a result of the elements' oxidation due to the combustion. Other difference is that in the incinerated samples there are some elements that are not shown in the dehydrated samples. Because of this, we suggest that the incineration should be the adequate technique to continue analyzing this kind of materials.

show abstract

Assessment of the essential element and heavy metal content of edible fish muscle

Cited by 153 publications

References 15 publications

Trace metals (Cu, Zn, Cd and Pb) in juvenile fish from estuarine nurseries along the Portuguese coast

Trace metals (Cu, Zn, Cd and Pb) in juvenile fish from estuarine nurseries along the Portuguese coast

Nutritional Metals in Foods by AAS

Direct XPS Analysis of Biological Materials for Environmental Purposes

Contact Info

Product

Resources

About