Influence of Biometric and Seasonal Parameters on the Metal Content of Scomber colias in Northwestern African Waters

Lozano-Bilbao, Enrique; Lozano, Gonzalo; Jiménez, Sebástian; Jurado-Ruzafa, A.; Hardisson, Arturo; Rubio, Carmen; Weller, Dailos González; Paz, Soraya; Gutiérrez, Ángel J.

doi:10.1007/s12011-020-02493-1

Cited by 9 publications

(2 citation statements)

References 83 publications

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“…The low concentrations of Al in the ocean are the result of the high reactivity of the element and its short amount of time spent in oceanic waters. Since Al bioaccumulates over the years, it is normal for the species that grows to the greatest size and age to be the one with the highest content of this metal [ 48 , 49 , 50 , 51 ]. One of the tissues in which Al accumulates the most is in the muscle, only being surpassed by the skin.…”

Section: Resultsmentioning

confidence: 99%

Risk Assessment and Characterization in Tuna Species of the Canary Islands According to Their Metal Content

Lozano-Bilbao

Delgado-Suárez

Paz-Montelongo

et al. 2023

Foods

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Bioaccumulation is the process by which living organisms accumulate substances, such as pesticides, heavy metals, and other pollutants, from their environment. These substances can accumulate in the organism’s tissues over time, leading to potential health risks. Bioaccumulation can occur in both aquatic and terrestrial ecosystems, and can have a significant impact on the health of both humans and wildlife. The objective of this study is to find out if the concentrations of metals in the tuna species of the Canary Islands are suitable for human consumption and if they pose a health risk. Fifteen samples of Acanthocybium solandri, Katsuwonus pelamis, Thunnus albacares, Thunnus obesus and Thunnus thynnus present in canaries were analyzed. Ten grams of muscle were taken from each specimen and the metals Al, Cd, Cr, Cu, Fe, Li, Ni, Pb and Zn were determined by Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES). The tuna species that presented more metals with a higher concentration compared to the others was T. thynnus, reaching up to 100 times more than the other studied species in Fe content with 137.8 ± 100.9 mg/Kg, which may be due to the fact that it is the largest species that reaches ages of more than fifteen years. The species Thunnus thynnus should not be suitable for commercialization according to the current legislation on the concentrations of Cd in blue fish, since 75% of the specimens studied exceeded the concentration legislated for Cd. A total of 40% of the studied specimens of this this species exceeded the legislated values for the concentration of Pb in oily fish meat, so this species must be monitored to ensure that it does not pose a risk to human health.

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Section: Resultsmentioning

confidence: 99%

Risk Assessment and Characterization in Tuna Species of the Canary Islands According to Their Metal Content

Lozano-Bilbao

Delgado-Suárez

Paz-Montelongo

et al. 2023

Foods

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“…Positioned in the central eastern Atlantic, the oligotrophic waters surrounding these islands support a quite high marine biodiversity and play a fundamental role in the local economy, particularly for artisanal fishing and tourism [20][21][22][23][24]. Nevertheless, the increasing human activity (mainly encompassing both industry and agriculture) has raised concerns regarding potential heavy metal contamination [25][26][27], with a proven anthropic impact. For example, a significant drop in the metal content of a common marine bioindicator (i.e., Anemona sulcate) has been found in the Canary Islands, probably linked to the radical stop of the majority of the human activities derived from the measures taken for COVID-19 restraints [28].…”

Section: Introductionmentioning

confidence: 99%

A Comparative Analysis of Sparisoma cretense in Island Environments: Unraveling Metal Accumulation Differences in the Canary Islands (Spain, NW African Waters)

Lozano-Bilbao,

Jurado-Ruzafa,

Lorenzo

et al. 2023

Animals

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This study investigates the impact of varying environmental conditions on the metal composition within the tissues of Sparisoma cretense, contributing to the understanding necessary to offer scientifically sound advice regarding the health status of this species. This knowledge extends beyond fishery production, encompassing implications for food security. The data span the years 2022 and 2023, encompassing both cold and warm climatic seasons. The concentrations of various metals, such as Al, Zn, Cd, Pb, Fe, and Cu, exhibited noteworthy variations across the islands, with significant increases recorded in 2023, particularly during the warm season. The intricate interplay between multiple factors shaped the availability of the analyzed elements in S. cretense. Factors such as rising temperatures during the warm season increased biological activity in marine ecosystems, seasonal fluctuations in weather conditions, water quality, and anthropogenic influences, all contributing to the observed variations in metal concentrations. Additionally, the geological composition of each island and the patterns of marine currents and sediment transport play pivotal roles in these differences. Comprehensive scientific research, monitoring, and environmental surveillance are essential for a holistic understanding of this variability and providing valuable insights for the conservation and management of marine ecosystems in the Canary archipelago.

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Metal content in Sardina pilchardus during the period 2014–2022 in the Canary Islands (Atlantic EC, Spain)

Lozano-Bilbao,

Jurado-Ruzafa,

Hardisson

et al. 2024

Environ Sci Pollut Res

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Influence of Biometric and Seasonal Parameters on the Metal Content of Scomber colias in Northwestern African Waters

Cited by 9 publications

References 83 publications

Risk Assessment and Characterization in Tuna Species of the Canary Islands According to Their Metal Content

Risk Assessment and Characterization in Tuna Species of the Canary Islands According to Their Metal Content

A Comparative Analysis of Sparisoma cretense in Island Environments: Unraveling Metal Accumulation Differences in the Canary Islands (Spain, NW African Waters)

Metal content in Sardina pilchardus during the period 2014–2022 in the Canary Islands (Atlantic EC, Spain)

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