Essential (Cu) and nonessential (Cd and Pb) metals in ichthyofauna from the coasts of Sinaloa state (SE Gulf of California)

Abstract

With the aim of giving an overview on concentration and distribution of Cd, Cu, and Pb in fish from the coasts of Sinaloa state (SE Gulf of California), specimens with different feeding habits were collected in five locations. Sampling occurred between June 2003 and March 2004. Metal analyses on fish tissues were made by graphite furnace (Cd, Pb) and flame (Cu) atomic absorption spectrophotometry. Metal concentrations in tissues of carnivorous fish were grouped together and compared with corresponding concentrations in non-carnivorous fish; Cu and Pb levels were significantly (p < 0.05) higher in liver of non-carnivorous species. Though no samples exceeded the maximum level set in international legislation for fish, from the perspective of the public health and considering the legal limits of fishery products for human consumption, Cu concentrations were exceeded (in tissues different from muscle) in four carnivorous and five non-carnivorous species according to the Australian legislation. In the case of Cd, two carnivorous species (Pomadasys leuciscus and Caulolatilus princeps) and one non-carnivorous species (Mugil cephalus), showed concentrations over the maximum level of 2 microg g(-1) dry weight considered in the Mexican legislation. Considering average amounts of fish consumption in Mexico, daily mineral intake (DMI) values for Cu and percentage weekly intake (PWI) of Cd and Pb were estimated; none of the analyzed metals in edible portion of analyzed fish could be detrimental to humans.

Heavy metals and arsenic concentrations in ten fish species from the Šalek lakes (Slovenia): assessment of potential human health risk due to fish consumption

“…2). Our findings regarding elevated Pb concentrations in gills of fish from the Šalek lakes is in accordance with studies performed on fishes from southeast Gulf of California (Ruelas-Inzunza et al 2010), and on Talapia mossambica from Hong Kong (Zhou et al 1998). Moreover, it has been found that Pb is accumulated in bony organs such as gills, backbone and tail (Furness and Middaugh 1990).…”

“…On the other hand, the intake of trace elements in the human body does increase with fish consumption. Worldwide, fish products represent only up to 10% of human diet; nevertheless, they represent the main uptake routes of metals (especially Hg) into the human body (Bienelli and Provini 2004;Chi et al 2007;Deshpande et al 2008;Storelli 2008;Ruelas-Inzunza et al 2010). Human health risk due to the consumption of fish loaded with metals is the subject of many recent studies (HasShön et al 2007b;Castro-Gonzales and MendezArmenta 2008;Türkmen et al 2009); furthermore, it has been shown that in some cases the intake of fish should be regulated (Chi et al 2007;Adhikari et al 2009;Nawaz et al 2009).…”

Trace elements in bone of Zalophus californianus from the Gulf of California: A comparative assessment of potentially polluted areas

“…Northern Gulf (13 the Southern Gulf (Porras-Peters et al 2008) and this species showed the highest Cu levels in fish from that region; in this species Cu, Cd, and Pb were found in slightly higher concentrations than in C. princeps and R. stearnsii (Ruelas-Inzunza et al 2010). Mugil cephalus showed low values of Hg, medium values of Cu and Cd, and high values of Pb (RuelasInzunza et al 2008(RuelasInzunza et al , 2010, although this species had low importance in the sea lion diet in this region (table 2).…”

“…Roncador stearnsii mostró concentraciones de Cu y Cd bajas y de Hg altas (Ruelas-Inzunza et al 2008) en la colonia de lobos marinos de Farallón de San Ignacio (Golfo Sur) con baja importancia en la dieta (Porras-Peters et al 2008). Por otro lado, S. crumenophthalmus fue consumida en la región Golfo Sur (Porras-Peters et al 2008) y mostró la mayor concentración de Cu en peces de esa región; en esta especie Cu, Cd y Pb se encontraron en concentraciones ligeramente mayores que en C. princeps y R. stearnsii (Ruelas-Inzunza et al 2010). Mugil cephalus mostró concentraciones bajas de Hg, concentraciones intermedias de Cu y Cd, y concentraciones altas de Pb (Ruelas-Inzunza et al 2008, aunque esta especie tuvo poca importancia en la dieta de los lobos marinos en esta región (tabla 2).…”

The Uptake of Copper by Aldama dentata: Ecophysiological Response, Its Modeling, and the Implication for Phytoremediation

“…The warm and humid climatic conditions prevalent over many parts of the tropical and subtropical regions of the world compel the use of higher fungicide doses to control the more intense development of downy mildew. In regions such as Latin America, the long-term use of Cu agrochemicals has contributed to areas of high Cu accumulations in soil (e.g., >3,000 mg Cu kg −1 in southern Brazil; Komárek et al 2010), with the associated consequence of higher Cu concentrations in aquifers and streams (e.g., of the Culiacán estuary in northwestern Mexico; Páes-Osuna et al 1998;Ruelas-Inzunza et al 2010).…”