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Wosnick N, Chaves AP, Giareta EP, Leite RD, Saint'Pierre TD, Hauser-Davis RA. From screens to seas: Tech contaminants in tiger sharks. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 360:124690. [PMID: 39116921 DOI: 10.1016/j.envpol.2024.124690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 07/31/2024] [Accepted: 08/05/2024] [Indexed: 08/10/2024]
Abstract
The potential negative impacts of Technology-Critical Elements (TCEs) on the environment and wildlife, despite increasingly recognized, remain largely overlooked. In this sense, this study aimed to investigate the concentrations of several TCEs, including rubidium (Rb), titanium (Ti) and various Rare Earth Elements (REEs), in different tissues of tiger sharks. Sharks incidentally caught by artisanal fleets in southern Brazil were opportunistically sampled and liver, gills, kidneys, heart, muscle, eyes, brain, skin, and teeth were analyzed by Inductively Coupled Plasma Mass Spectrometry (ICP-MS). Significant Rb concentration variations were observed across different tissues, with higher levels detected in kidneys and lower levels in the liver. Titanium concentrations also exhibited significant differences, with higher levels detected in teeth and lower levels in liver. Although no statistical differences were observed for the analyzed REEs, a trend of higher accumulation in the liver, gills, and skin was noted. Light Rare Earth Elements (LREEs) were found predominantly in all organs, with neodymium, lanthanum, and cerium as the most significant REEs detected. Several statistically significant correlations were identified between Rb and REEs, as well as between Ti and REEs, indicating systemic transport of these elements across different tissues. These findings indicate that the growing extraction and disposal of metallic elements, driven by technological advancements, may lead to their assimilation by marine fauna, particularly at higher trophic levels. The potential harmful effects on these organisms remain unknown and require urgent investigation. Additionally, as mining activities intensify globally, precise legislative measures are essential to address environmental concerns, species conservation, and human health considerations.
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Affiliation(s)
- Natascha Wosnick
- Programa de Pós-graduação em Zoologia, Universidade Federal do Paraná, Paraná, Brazil; Associação MarBrasil, Pontal do Paraná, Brazil; Cape Eleuthera Institute, Eleuthera, The Bahamas.
| | - Ana Paula Chaves
- Programa de Pós-graduação em Toxicologia, Universidade de São Paulo, São Paulo, Brazil
| | - Eloísa Pinheiro Giareta
- Programa de Pós-graduação em Zoologia, Universidade Federal do Paraná, Paraná, Brazil; Associação MarBrasil, Pontal do Paraná, Brazil
| | - Renata Daldin Leite
- Associação MarBrasil, Pontal do Paraná, Brazil; Programa de Pós-graduação em Ecologia e Conservação, Universidade Federal do Paraná, Paraná, Brazil
| | | | - Rachel Ann Hauser-Davis
- Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Av. Brasil, 4.365, Manguinhos, Rio de Janeiro, Brazil.
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2
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Riesgo L, Sanpera C, García-Barcelona S, Sánchez-Fortún M, Coll M, Navarro J. Understanding the role of ecological factors affecting mercury concentrations in the blue shark (Prionace glauca). CHEMOSPHERE 2023; 313:137642. [PMID: 36572364 DOI: 10.1016/j.chemosphere.2022.137642] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 12/21/2022] [Accepted: 12/22/2022] [Indexed: 06/17/2023]
Abstract
Human activities have increased environmental concentrations of pollutants in marine ecosystems, which can cause harmful effects on marine organisms. Top predators are particularly susceptible to bioaccumulation and biomagnification of pollutants through the food webs and are described as good sentinels for monitoring metal accumulation such mercury (Hg) in marine ecosystems. However, to be used as sentinels, it is important to understand the main ecological factors affecting the concentrations of pollutants in these organisms. In the present study, our main objective was to investigate the effect of body size, sex, trophic niche and geographic area on Hg concentrations in a top marine top predator, the blue shark (Prionace glauca). We analysed Hg in muscle samples from male and female blue sharks of different body sizes collected from the waters surrounding the Canary Islands and the South of Portugal, in the Atlantic Ocean, to waters of the north-western Mediterranean Sea. The results revealed that the sampling area was an important factor explaining Hg concentrations, showing higher values in the Mediterranean blue sharks. We also found a positive relationship between Hg concentrations and body size of blue sharks, indicating a bioaccumulation process of this pollutant in relation with body size. Moreover, we observed a relationship between Hg concentrations and δ13C values, a proxy of the use of inshore-offshore marine habitats. Individuals with depleted δ13C values that potentially foraged in offshore waters showed higher Hg values. Importantly, most of the analysed blue sharks presented Hg concentrations that exceeded the limits established by the European Union for human consumption.
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Affiliation(s)
- Lola Riesgo
- Institut de Ciències Del Mar (ICM), CSIC, Barcelona, Spain; Departament de Biologia Evolutiva, Ecologia I Ciències Ambientals, Universitat de Barcelona, Barcelona, Spain
| | - Carola Sanpera
- Departament de Biologia Evolutiva, Ecologia I Ciències Ambientals, Universitat de Barcelona, Barcelona, Spain
| | | | - Moisès Sánchez-Fortún
- Departament de Biologia Evolutiva, Ecologia I Ciències Ambientals, Universitat de Barcelona, Barcelona, Spain
| | - Marta Coll
- Institut de Ciències Del Mar (ICM), CSIC, Barcelona, Spain
| | - Joan Navarro
- Institut de Ciències Del Mar (ICM), CSIC, Barcelona, Spain.
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3
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Squadrone S, Abete MC, Miedico O, Gavinelli S, Neri B, Busico F, Berretta S, Carosielli L, Carrabs G, Chiaravalle AE. Poaching of endangered species in Mediterranean Sea: Alopias vulpinus. MARINE POLLUTION BULLETIN 2021; 168:112456. [PMID: 33991986 DOI: 10.1016/j.marpolbul.2021.112456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 04/27/2021] [Accepted: 05/03/2021] [Indexed: 06/12/2023]
Abstract
A thresher shark poached by fishermen in the stretch of sea between the island of Ponza and the coast of Terracina (Lazio, Central Italy, Mediterranean Sea) and confiscated by the Italian health authorities was evaluated for the presence of chemical contaminants. Hg mean concentration of 2.1 mg kg-1 was found in muscle; speciation analysis confirmed it was almost in the toxic organic form of MeHg (2.0 mg kg-1). The Se:Hg molar ratio was <1 not protective against the toxic effect of Hg. 137Cs was detected at a mean concentration of 0.53 Bq kg-1, and 40K, radioisotope of natural origin was found at 91 Bq kg-1. Dioxins and PCBs were found in the common thresher shark at mean concentrations of 0.012 and 0.088 pg TEQ-WHO g-1 w.w. while NDL PCBs at 4.5 ng g-1 w.w., lower than limits set by European Regulation. The major concern is constituted by the presence of Hg twice the maximum limit set by EU Regulation, then the consumption of thresher shark flesh should be strongly discouraged.
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Affiliation(s)
- Stefania Squadrone
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle D'Aosta, via Bologna 148, 10154 Torino, ITALY.
| | - Maria Cesarina Abete
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle D'Aosta, via Bologna 148, 10154 Torino, ITALY
| | - Oto Miedico
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Centro di Referenza Nazionale Radioattività, via Manfredonia 20, 71121 Foggia, ITALY
| | - Stefania Gavinelli
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle D'Aosta, via Bologna 148, 10154 Torino, ITALY
| | - Bruno Neri
- Istituto Zooprofilattico Sperimentale del Lazio e della Toscana, via Appia Nuova 1411, Roma, ITALY
| | - Fabio Busico
- Istituto Zooprofilattico Sperimentale del Lazio e della Toscana, via Appia Nuova 1411, Roma, ITALY
| | - Sesto Berretta
- Istituto Zooprofilattico Sperimentale del Lazio e della Toscana, via Appia Nuova 1411, Roma, ITALY
| | | | | | - Antonio E Chiaravalle
- Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata, Centro di Referenza Nazionale Radioattività, via Manfredonia 20, 71121 Foggia, ITALY
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4
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Bergés-Tiznado ME, Vélez D, Devesa V, Márquez-Farías JF, Páez-Osuna F. Arsenic in Tissues and Prey Species of the Scalloped Hammerhead (Sphyrna lewini) from the SE Gulf of California. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2021; 80:624-633. [PMID: 33740087 DOI: 10.1007/s00244-021-00830-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 02/27/2021] [Indexed: 06/12/2023]
Abstract
The bioaccumulation of arsenic (As) in the muscle, liver, kidneys, and brain of the shark Sphyrna lewini was measured in 40 juvenile specimens from southeast Gulf of California. Additionally, the biomagnification factor was calculated through prey items from stomach contents of the analyzed specimens. The concentrations of As (mg kg-1, wet weight) were higher in the muscle (10.1 ± 0.3) and liver (9.4 ± 0.5) than in the brain (4.5 ± 0.3) and kidneys (4.2 ± 0.2), which may be attributed to the biological functions of each tissue. Positive correlations were found between the levels of As in muscle and liver with the biological parameters of S. lewini. Hammerhead sharks feed mainly of teleost fishes with low As values (Clupeidae fishes, 1.1 ± 0.5; Sciaenidae fishes, 1.0 ± 0.6; Scomber japonicus, 1.2 ± 0.6; and Etropus crossotus 2.1 ± 0.4) compared with the predator, indicating biomagnification. Inorganic arsenic (Asi) in muscle was estimated as 3% of the total As, although muscle consumption is unlikely to represent a risk (HQ < 1) in humans. Moreover, the probabilities of developing cancer were estimated as low (3.99 × 10-5 to 3.32 × 10-6). To avoid health risks related to As, a weekly ration must not exceed 69.3 and 484.8 g in children and adults, respectively.
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Affiliation(s)
- Magdalena E Bergés-Tiznado
- Posgrado en Ciencias de Mar y Limnología, Unidad Académica Mazatlán, Universidad Nacional Autónoma de México, P.O. Box 811, C.P. 82000, Mazatlán, Sinaloa, Mexico.
- Unidad Académica de Ingeniería en Tecnología Ambiental, Universidad Politécnica de Sinaloa, Carretera Municipal Libre Mazatlán-Higueras km. 3, C.P. 82199, Mazatlán, Sinaloa, Mexico.
| | - Dinoraz Vélez
- Instituto de Agroquímica Y Tecnología de Alimentos, Calle Catedrático Agustín Escardino Benlloch, 7, 46980, Paterna, Valencia, Spain
| | - Vicenta Devesa
- Instituto de Agroquímica Y Tecnología de Alimentos, Calle Catedrático Agustín Escardino Benlloch, 7, 46980, Paterna, Valencia, Spain
| | - J Fernando Márquez-Farías
- Facultad de Ciencias del Mar, Universidad Autónoma de Sinaloa, Paseo Claussen S/N Col. Centro, C.P. 82000, Mazatlán, Sinaloa, Mexico
| | - Federico Páez-Osuna
- Instituto de Ciencias del Mar y Limnología, Unidad Académica Mazatlán, Universidad Nacional Autónoma de México, P.O. Box 811, C.P. 82000, Mazatlán, Sinaloa, Mexico
- El Colegio de Sinaloa, Antonio Rosales 435 Pte. Culiacán, Sinaloa, Mexico
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Torres P, Rodrigues A, Prestes ACL, Neto AI, Álvaro N, Martins GM. The Azorean edible abalone Haliotis tuberculata, an alternative heavy metal-free marine resource? CHEMOSPHERE 2020; 242:125177. [PMID: 31677516 DOI: 10.1016/j.chemosphere.2019.125177] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 10/04/2019] [Accepted: 10/20/2019] [Indexed: 06/10/2023]
Abstract
Abalones are considered a delicacy and exploited for food worldwide. In many places, overfishing has led to the decimation of wild stocks and many are now reared in aquaculture systems. In the Azores, there is no tradition of eating abalones and Haliotis tuberculata stocks are still virtually untouched. However, as tourism in the islands grows and the stocks of other shellfish diminish, there is an increasing pressure to find alternative edible resources, leading to a rising interest in abalones. According to previous studies performed in the region, other edible species, including the local highly appreciated limpets and the giant barnacle, present high concentration levels of some heavy metals, which has been attributed to the volcanic origin of the islands. Here we analysed the metal content in the edible tissue of Haliotis tuberculata from São Miguel Island, Azores. The potential human health risks due to its consumption was assessed by estimating the average daily intake (EDI) and target hazard quotient (THQ) of metals. Similarly to other organisms in the Azores, abalones have higher than normal levels of some heavy metals, particularly cadmium, reflecting a local natural source that should be closely monitored from a public health point of view.
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Affiliation(s)
- Paulo Torres
- CIBIO, Research Centre in Biodiversity and Genetic Resources - InBIO Associate Laboratory, University of the Azores, Rua Mãe de Deus, 58, 9500-321, Ponta Delgada, Azores, Portugal.
| | - Armindo Rodrigues
- IVAR - Instituto de Investigação em Vulcanologia e Avaliação de Riscos, University of the Azores, Rua Mãe de Deus, 58, 9500-321, Ponta Delgada, Azores, Portugal; Faculty of Sciences and Technology, University of the Azores, Rua Mãe de Deus, 58, 9500-321, Ponta Delgada, Azores, Portugal
| | - Afonso C L Prestes
- Faculty of Sciences and Technology, University of the Azores, Rua Mãe de Deus, 58, 9500-321, Ponta Delgada, Azores, Portugal; CE3C, Centre for Ecology, Evolution and Environmental Changes/Azorean Biodiversity Group, University of the Azores, Rua Mãe de Deus, 58, 9500-321, Ponta Delgada, Azores, Portugal
| | - Ana I Neto
- Faculty of Sciences and Technology, University of the Azores, Rua Mãe de Deus, 58, 9500-321, Ponta Delgada, Azores, Portugal; CE3C, Centre for Ecology, Evolution and Environmental Changes/Azorean Biodiversity Group, University of the Azores, Rua Mãe de Deus, 58, 9500-321, Ponta Delgada, Azores, Portugal
| | - Nuno Álvaro
- IITAA, Institute for Investigation and Technology of Agronomy and Environment, University of the Azores, Campus de Angra do Heroísmo Rua Capitão João d'Ávlia, Pico da Urze PT, 9700-042, Angra do Heroísmo, Azores, Portugal
| | - Gustavo M Martins
- CE3C, Centre for Ecology, Evolution and Environmental Changes/Azorean Biodiversity Group, University of the Azores, Rua Mãe de Deus, 58, 9500-321, Ponta Delgada, Azores, Portugal; AQUAZOR, Marine Aquaculture and Biotechnology of the Azores, 9500-331, Ponta Delgada, Azores, Portugal
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6
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Palacios-Torres Y, de la Rosa JD, Olivero-Verbel J. Trace elements in sediments and fish from Atrato River: an ecosystem with legal rights impacted by gold mining at the Colombian Pacific. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 256:113290. [PMID: 31813704 DOI: 10.1016/j.envpol.2019.113290] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 09/14/2019] [Accepted: 09/19/2019] [Indexed: 06/10/2023]
Abstract
The Atrato watershed is a rainforest that supports exceptional wildlife species and is considered one of the most biodiversity-rich areas on the planet, currently threatened by massive gold mining. Aimed to protect this natural resource, the Constitutional Court of Colombia declared the river subject to rights. The objective of this study was to quantify trace elements in sediments and fish from Atrato watershed, assessing their environmental and human health risk. Forty-two trace elements were quantified using ICP-MS. Thirty-one elements increased their concentration downstream the river. Concentration Factors (CF) suggest sediments were moderately polluted by Cr, Cu, Cd, and strongly polluted by As. Most stations had Cr (98%) and Ni (78%) concentrations greater than the Probable Effect Concentration (PEC) criteria. Together, toxic elements generate a Pollution Load Index (PLI) and a Potential Ecological Risk Index (RI) that categorized 54% of the sediments as polluted, and 90% as moderate polluted, respectively. Hemiancistrus wilsoni, a low trophic guild fish species, had the greater average levels for Ni, Cu, As and Cd, among other elements. Rubidium and Cs showed a positive correlation with fish trophic level, suggesting these two metals biomagnify in the food chain. The Hazard Quotient (HQ) for As was greater than 1 for several species, indicating a potential risk to human health. Collectively, data suggest gold mining carried out in this biodiversity hotspot releases toxic elements that have abrogated sediment quality in Atrato River, and their incorporation in the trophic chain constitutes a large threat on environmental and human health due to fish consumption. Urgent legal and civil actions should be implemented to halt massive mining-driven deforestation to enforce Atrato River rights.
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Affiliation(s)
- Yuber Palacios-Torres
- Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, Zaragocilla Campus, University of Cartagena, Cartagena 130015, Colombia; Environmental Toxicology and Natural Resources Group, School of Natural Sciences, Technological University of Choco "Diego Luis Cordoba", Quibdo, Choco, A.A. 292, Colombia
| | - Jesus D de la Rosa
- Associate Unit CSIC-University of Huelva "Atmospheric Pollution", Center for Research in Sustainable Chemistry-CIQSO, University of Huelva, Campus del Carmen, E-21071 Huelva, Spain
| | - Jesus Olivero-Verbel
- Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, Zaragocilla Campus, University of Cartagena, Cartagena 130015, Colombia.
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7
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Thorburn J, Neat F, Burrett I, Henry LA, Bailey DM, Jones CS, Noble LR. Ontogenetic Variation in Movements and Depth Use, and Evidence of Partial Migration in a Benthopelagic Elasmobranch. Front Ecol Evol 2019. [DOI: 10.3389/fevo.2019.00353] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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8
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Terrazas-López R, Arreola-Mendoza L, Galván-Magaña F, S B S, M P J. Understanding the antagonism of Hg and Se in two shark species from Baja California South, México. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 650:202-209. [PMID: 30196220 DOI: 10.1016/j.scitotenv.2018.08.261] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 08/16/2018] [Accepted: 08/20/2018] [Indexed: 06/08/2023]
Affiliation(s)
- Rafael Terrazas-López
- Centro Interdisciplinario de Ciencias Marinas (CICIMAR), Instituto Politécnico Nacional (IPN), Avenida IPN, s/n Colonia Playa Palo de Santa Rita, C.P. 23096 La Paz, Baja California Sur, Mexico
| | - Laura Arreola-Mendoza
- Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD), Instituto Politécnico Nacional (IPN), Calle 30 de Junio de 1520, Barrio la Laguna Ticomán, C.P.07340 Ciudad de México, Mexico.
| | - Felipe Galván-Magaña
- Centro Interdisciplinario de Ciencias Marinas (CICIMAR), Instituto Politécnico Nacional (IPN), Avenida IPN, s/n Colonia Playa Palo de Santa Rita, C.P. 23096 La Paz, Baja California Sur, Mexico
| | - Sujitha S B
- Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD), Instituto Politécnico Nacional (IPN), Calle 30 de Junio de 1520, Barrio la Laguna Ticomán, C.P.07340 Ciudad de México, Mexico
| | - Jonathan M P
- Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD), Instituto Politécnico Nacional (IPN), Calle 30 de Junio de 1520, Barrio la Laguna Ticomán, C.P.07340 Ciudad de México, Mexico
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9
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Chen CY, Chen YT, Chen KS, Hsu CC, Liu LL, Chen HS, Chen MH. Arsenic and five metal concentrations in the muscle tissue of bigeye tuna (Thunnus obesus) in the Atlantic and Indian Oceans. MARINE POLLUTION BULLETIN 2018; 129:186-193. [PMID: 29680537 DOI: 10.1016/j.marpolbul.2018.02.028] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 02/09/2018] [Accepted: 02/14/2018] [Indexed: 06/08/2023]
Abstract
White muscle concentrations of As, Cd, Cu, Fe, Se, and Zn were investigated in Atlantic- and Indian-bigeye tuna (BET) (Thunnus obesus) from 6 regions. As and Cd muscle concentrations were significantly higher in the Indian-BET than in the Atlantic-BET, whereas the Indian-BET caught in the waters off South Africa revealed the highest As, Se, and Zn muscle concentrations. Accordingly, multidimensional scaling separated them into two oceanic groups. Positive linear relationships between muscle Cd concentration and fork length (FL) were established in both oceans. For the other elements, only muscle-Fe and FL relationship was found in the Atlantic-BET. 10.3% of BET > 145 cm FL from both oceans possessed muscle Cd concentrations exceeding the food safety limit (0.1 μg g-1 wet weight) set by the European Commission. Increased Cd, Cu and Zn pollution was found in the Atlantic Ocean compared with previous data, with higher levels found in the Indian Ocean.
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Affiliation(s)
- C-Y Chen
- Department of Marine Environmental Engineering, National Kaohsiung Marine University, 811 Kaohsiung, Taiwan
| | - Y-T Chen
- Department of Oceanography (Marine Biology Group), National Sun Yat-sen University, 804 Kaohsiung, Taiwan
| | - K-S Chen
- Department of Oceanography (Marine Biology Group), National Sun Yat-sen University, 804 Kaohsiung, Taiwan
| | - C-C Hsu
- Institute of Oceanography, National Taiwan University, 106 Taipei, Taiwan
| | - L-L Liu
- Department of Oceanography (Marine Biology Group), National Sun Yat-sen University, 804 Kaohsiung, Taiwan
| | - H-S Chen
- Department of Oceanography (Marine Biology Group), National Sun Yat-sen University, 804 Kaohsiung, Taiwan
| | - M-H Chen
- Department of Oceanography (Marine Biology Group), National Sun Yat-sen University, 804 Kaohsiung, Taiwan; Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, 807 Kaohsiung, Taiwan.
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10
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Martins APB, Feitosa LM, Lessa RP, Almeida ZS, Heupel M, Silva WM, Tchaicka L, Nunes JLS. Analysis of the supply chain and conservation status of sharks (Elasmobranchii: Superorder Selachimorpha) based on fisher knowledge. PLoS One 2018. [PMID: 29534100 PMCID: PMC5849302 DOI: 10.1371/journal.pone.0193969] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Increasing fishing effort has caused declines in shark populations worldwide. Understanding biological and ecological characteristics of sharks is essential to effectively implement management measures, but to fully understand drivers of fishing pressure social factors must be considered through multidisciplinary and integrated approaches. The present study aimed to use fisher and trader knowledge to describe the shark catch and product supply chain in Northeastern Brazil, and evaluate perceptions regarding the regional conservation status of shark species. Non-systematic observations and structured individual interviews were conducted with experienced fishers and traders. The demand and economic value of shark fins has reportedly decreased over the last 10 years while the shark meat trade has increased slightly, including a small increase in the average price per kilogram of meat. Several threatened shark species were reportedly often captured off shore and traded at local markets. This reported and observed harvest breaches current Brazilian environmental laws. Fishing communities are aware of population declines of several shark species, but rarely take action to avoid capture of sharks. The continuing capture of sharks is mainly due to a lack of knowledge of environmental laws, lack of enforcement by responsible authorities, and difficulties encountered by fishers in finding alternative income streams. National and regional conservation measures are immediately required to reduce overfishing on shark populations in Northeastern Brazil. Social and economic improvements for poor fishing communities must also be implemented to achieve sustainable fisheries.
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Affiliation(s)
- Ana Paula Barbosa Martins
- Centre for Sustainable Tropical Fisheries and Aquaculture & College of Science and Engineering, James Cook University, Townsville, Qld, Australia
- Australian Institute of Marine Science, Townsville, Qld, Australia
- CAPES Foundation, Ministry of Education of Brazil, Brasilia–DF, Brazil
- * E-mail:
| | - Leonardo Manir Feitosa
- Universidade Federal de Pernambuco—Av. Professor Moraes Rego, Cidade Universitária. Recife–PE, Brazil
- Universidade Federal Rural de Pernambuco–Rua Dom Manuel de Medeiros, s/n, Dois Irmãos. Recife–PE, Brazil
| | - Rosangela Paula Lessa
- Universidade Federal Rural de Pernambuco–Rua Dom Manuel de Medeiros, s/n, Dois Irmãos. Recife–PE, Brazil
| | - Zafira Silva Almeida
- Universidade Estadual do Maranhão–Cidade Universitária Paulo VI, s/n, Tirirical. São Luís–MA, Brazil
| | - Michelle Heupel
- Centre for Sustainable Tropical Fisheries and Aquaculture & College of Science and Engineering, James Cook University, Townsville, Qld, Australia
- Australian Institute of Marine Science, Townsville, Qld, Australia
| | - Wagner Macedo Silva
- Universidade Estadual do Maranhão–Cidade Universitária Paulo VI, s/n, Tirirical. São Luís–MA, Brazil
| | - Ligia Tchaicka
- Universidade Estadual do Maranhão–Cidade Universitária Paulo VI, s/n, Tirirical. São Luís–MA, Brazil
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11
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Copat C, Grasso A, Fiore M, Cristaldi A, Zuccarello P, Signorelli SS, Conti GO, Ferrante M. Trace elements in seafood from the Mediterranean sea: An exposure risk assessment. Food Chem Toxicol 2018; 115:13-19. [PMID: 29510219 DOI: 10.1016/j.fct.2018.03.001] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 02/18/2018] [Accepted: 03/02/2018] [Indexed: 12/13/2022]
Abstract
Fish and shellfish belonging to five different species among pelagic, benthonic and molluscs, were collected from the Gulf of Catania in 2017 to evaluate arsenic (As), cadmium (Cd), chromium (Cr), lead (Pb), manganese (Mn), nickel (Ni), selenium (Se) vanadium (V) and zinc (Zn). Risk of developing chronic systemic effects derived from seafood consumption was evaluated with the Target Hazard Quotient (THQ) and compared with the results obtained from the same area and the species, collected in 2012. Hg, Cd and Pb concentrations were found below the limits set by European Community for human consumption in all the analysed species. The total risk is reduced from 1.1 to 0.49, and this result is strongly associated with the lower bioaccumulations levels found for Hg, Mn, Se and V. Others metals such as As, Pb, Ni and Zn bioaccumulation levels remain approximately the same, conversely, it is revealed a slight increase of Cd and Cr. Overall, the present study show a positive picture of the studied area, the Gulf of Catania, highlighting not only a decreased metal availability of the study area, but, above all, a decreased risk to develop chronic systemic effects derived from consumption of local seafood.
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Affiliation(s)
- Chiara Copat
- Department of Medical, Surgery Sciences and Advanced Technologies, G. F. Ingrassia, University of Catania, Via Santa Sofia 87, 95123, Catania, Italy.
| | - Alfina Grasso
- Department of Medical, Surgery Sciences and Advanced Technologies, G. F. Ingrassia, University of Catania, Via Santa Sofia 87, 95123, Catania, Italy
| | - Maria Fiore
- Department of Medical, Surgery Sciences and Advanced Technologies, G. F. Ingrassia, University of Catania, Via Santa Sofia 87, 95123, Catania, Italy
| | - Antonio Cristaldi
- Department of Medical, Surgery Sciences and Advanced Technologies, G. F. Ingrassia, University of Catania, Via Santa Sofia 87, 95123, Catania, Italy
| | - Pietro Zuccarello
- Department of Medical, Surgery Sciences and Advanced Technologies, G. F. Ingrassia, University of Catania, Via Santa Sofia 87, 95123, Catania, Italy
| | - Salvatore Santo Signorelli
- Departments of Clinical and Experimental Medicine, University of Catania, Via S. Sofia, 87, 95123 Catania, Italy
| | - Gea Oliveri Conti
- Department of Medical, Surgery Sciences and Advanced Technologies, G. F. Ingrassia, University of Catania, Via Santa Sofia 87, 95123, Catania, Italy
| | - Margherita Ferrante
- Department of Medical, Surgery Sciences and Advanced Technologies, G. F. Ingrassia, University of Catania, Via Santa Sofia 87, 95123, Catania, Italy
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12
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Nos D, Navarro J, Barría C, Solé M. Carboxylesterase activities in chondrichthyans of the western Mediterranean Sea. MARINE POLLUTION BULLETIN 2017; 119:332-335. [PMID: 28438337 DOI: 10.1016/j.marpolbul.2017.04.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 04/10/2017] [Accepted: 04/11/2017] [Indexed: 06/07/2023]
Affiliation(s)
- David Nos
- Institut de Ciències del Mar CSIC, Passeig Marítim de la Barceloneta, 37-49, 08003 Barcelona, Spain.
| | - Joan Navarro
- Institut de Ciències del Mar CSIC, Passeig Marítim de la Barceloneta, 37-49, 08003 Barcelona, Spain; Estación Biológica de Doñana CSIC, Avenida Américo Vespucio 26, 41092 Sevilla, Spain
| | - Claudio Barría
- Institut de Ciències del Mar CSIC, Passeig Marítim de la Barceloneta, 37-49, 08003 Barcelona, Spain
| | - Montserrat Solé
- Institut de Ciències del Mar CSIC, Passeig Marítim de la Barceloneta, 37-49, 08003 Barcelona, Spain
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13
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Torres P, Tristão da Cunha R, Rodrigues ADS. Mid-Atlantic elasmobranchs: Suitable metal scouts? MARINE POLLUTION BULLETIN 2017; 117:203-213. [PMID: 28179057 DOI: 10.1016/j.marpolbul.2017.01.058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Revised: 01/20/2017] [Accepted: 01/25/2017] [Indexed: 06/06/2023]
Abstract
Heavy metals are a hazard to marine fauna and human health. In this study we assess stable isotopes and metal content in Prionace glauca and Isurus oxyrinchus and analyse these results within and among other species and across regions and geographical areas. Also, we evaluate their suitability, together with Raja clavata and Galeorhinus galeus, as Mid-Atlantic bioindicators. Prionace glauca and I. oxyrinchus shared the same trophic level in a pelagic food web and did not present significant differences between genders or metals, except for As. Arsenic and Hg accumulated while Cd and Pb were not detected. One I. oxyrinchus presented Hg values above regulatory limits. A high Hg exposure was associated with I. oxyrinchus since its maximum weekly intake was exceeded. Elasmobranchs can be used as metal sentinels, each presenting different key features which defines a good marine bioindicator, allowing long-term monitoring at different temporal and spatial scales.
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Affiliation(s)
- Paulo Torres
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Pólo dos Açores - Departamento de Biologia, Universidade dos Açores. Rua Mãe de Deus, 58, 9500-801 Ponta Delgada, Azores, Portugal; Faculty of Sciences and Technology, University of the Azores, 9501-801 Ponta Delgada, Azores, Portugal.
| | - Regina Tristão da Cunha
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Pólo dos Açores - Departamento de Biologia, Universidade dos Açores. Rua Mãe de Deus, 58, 9500-801 Ponta Delgada, Azores, Portugal; Faculty of Sciences and Technology, University of the Azores, 9501-801 Ponta Delgada, Azores, Portugal
| | - Armindo Dos Santos Rodrigues
- IVAR, Instituto de Investigação em Vulcanologia e Avaliação de Riscos, University of the Azores, 9501-801 Ponta Delgada, Azores, Portugal; Faculty of Sciences and Technology, University of the Azores, 9501-801 Ponta Delgada, Azores, Portugal
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14
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Torres P, Tristão da Cunha R, Micaelo C, Rodrigues ADS. Bioaccumulation of metals and PCBs in Raja clavata. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 573:1021-1030. [PMID: 27607905 DOI: 10.1016/j.scitotenv.2016.08.187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2016] [Revised: 08/08/2016] [Accepted: 08/28/2016] [Indexed: 06/06/2023]
Abstract
The goal of this study was to assess stable isotopes profiles, metals concentration and PCBs in Raja clavata muscle and liver, according to sex and size, and to elucidate its suitability as a Mid-Atlantic biomonitor. The results reflected bioaccumulation and suggested biomagnification processes for As and Hg in muscle tissue. Cd, Cu and Zn were detected in high amounts in liver, Cr, Mn and Rb were relatively stable and low, Pb was not detected and Sr was present in muscle at high levels, decreasing with length. Hg and Se were strongly correlated, suggesting a mitigation role. Both tissues presented low concentrations of PCBs, especially the dioxin-like congeners, although always higher in liver and not correlated with size. None of these contaminants exceed EU legislated limits. However, they need to be monitored given study area's location, volcanic nature and the expected increase of anthropogenic activity related to future prospective mining activities and the establishment of the Transatlantic Trade and Investment Partnership (TTIP) between Europe and the USA.
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Affiliation(s)
- Paulo Torres
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Pólo dos Açores - Departamento de Biologia, Universidade dos Açores, Rua Mãe de Deus, 58, 9500-801 Ponta Delgada, Açores, Portugal.
| | - Regina Tristão da Cunha
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Pólo dos Açores - Departamento de Biologia, Universidade dos Açores, Rua Mãe de Deus, 58, 9500-801 Ponta Delgada, Açores, Portugal
| | - Cristina Micaelo
- IPMA, Portuguese Institute for the Sea and Atmosphere, Avenida Brasília, 1446-009 Lisbon, Portugal
| | - Armindo Dos Santos Rodrigues
- CVARG, Centro de Vulcanologia e Avaliação de Riscos Geológicos, - Departamento de Biologia, Universidade dos Açores, Apartado 1422, 9501-801 Ponta Delgada, Açores, Portugal
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15
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Nicolaus EEM, Bendall VA, Bolam TPC, Maes T, Ellis JR. Concentrations of mercury and other trace elements in porbeagle shark Lamna nasus. MARINE POLLUTION BULLETIN 2016; 112:406-410. [PMID: 27523580 DOI: 10.1016/j.marpolbul.2016.07.047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Revised: 07/28/2016] [Accepted: 07/29/2016] [Indexed: 06/06/2023]
Abstract
Concentrations of 11 trace elements in three tissues of porbeagle shark Lamna nasus (n=33) were determined. The maximum observed concentrations of Cd and Pb in muscle were 0.04 and 0.01mgkg-1, respectively, and all muscle samples were below European seafood limits for these metals. Hg concentrations in either the red or white muscle that exceeded European regulations for seafood were observed in one-third of specimens. Hg concentration, however, increased with length, and all fish >195cm had concentrations >1.0mgkg-1, with a maximum observed value of 2.0mgkg-1. Concentrations of Fe and Cu were, on average, 9.7 and 10 times higher in red muscle than in nearby white muscle, respectively. Mn, Zn, As and Se were also found in significantly higher concentrations in red muscle than in white muscle.
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Affiliation(s)
- E E Manuel Nicolaus
- Centre for Environment, Fisheries and Aquaculture Science (Cefas), Lowestoft Laboratory, Pakefield Road, Lowestoft NR33 0HT, UK.
| | - Victoria A Bendall
- Centre for Environment, Fisheries and Aquaculture Science (Cefas), Lowestoft Laboratory, Pakefield Road, Lowestoft NR33 0HT, UK
| | - Thi P C Bolam
- Centre for Environment, Fisheries and Aquaculture Science (Cefas), Lowestoft Laboratory, Pakefield Road, Lowestoft NR33 0HT, UK
| | - Thomas Maes
- Centre for Environment, Fisheries and Aquaculture Science (Cefas), Lowestoft Laboratory, Pakefield Road, Lowestoft NR33 0HT, UK
| | - Jim R Ellis
- Centre for Environment, Fisheries and Aquaculture Science (Cefas), Lowestoft Laboratory, Pakefield Road, Lowestoft NR33 0HT, UK
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16
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Cyanobacterial Neurotoxin BMAA and Mercury in Sharks. Toxins (Basel) 2016; 8:toxins8080238. [PMID: 27537913 PMCID: PMC4999854 DOI: 10.3390/toxins8080238] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 07/26/2016] [Indexed: 12/22/2022] Open
Abstract
Sharks have greater risk for bioaccumulation of marine toxins and mercury (Hg), because they are long-lived predators. Shark fins and cartilage also contain β-N-methylamino-l-alanine (BMAA), a ubiquitous cyanobacterial toxin linked to neurodegenerative diseases. Today, a significant number of shark species have found their way onto the International Union for Conservation of Nature (IUCN) Red List of Threatened Species. Many species of large sharks are threatened with extinction due in part to the growing high demand for shark fin soup and, to a lesser extent, for shark meat and cartilage products. Recent studies suggest that the consumption of shark parts may be a route to human exposure of marine toxins. Here, we investigated BMAA and Hg concentrations in fins and muscles sampled in ten species of sharks from the South Atlantic and Pacific Oceans. BMAA was detected in all shark species with only seven of the 55 samples analyzed testing below the limit of detection of the assay. Hg concentrations measured in fins and muscle samples from the 10 species ranged from 0.05 to 13.23 ng/mg. These analytical test results suggest restricting human consumption of shark meat and fins due to the high frequency and co-occurrence of two synergistic environmental neurotoxic compounds.
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17
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Torres P, Rodrigues A, Soares L, Garcia P. Metal Concentrations in Two Commercial Tuna Species from an Active Volcanic Region in the Mid-Atlantic Ocean. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2016; 70:341-347. [PMID: 26681184 DOI: 10.1007/s00244-015-0249-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Accepted: 11/30/2015] [Indexed: 06/05/2023]
Abstract
Concentrations of cadmium (Cd), mercury (Hg), and lead [Pb (µg g(-1) wet weight)] were determined in liver and muscle samples of 15 bigeye (Thunnus obesus) and 15 skipjack tunas (Katsuwonus pelamis) caught over an active volcanic region in the Mid-Atlantic Ocean (Azores, Portugal) and evaluated regarding consumption safety. None of the muscle samples (edible part) exceeded the European Union (EU) maximum limits (MLs) for Hg and Pb. Cd concentrations in muscle were much greater than EU MLs with 53 and 26 % of the bigeye tuna and skipjack tuna, respectively, in exceedance of the limits. Results obtained in this work, together with other studies in the same region, support the existence of an important volcanic source of Cd in waters of the Mid-Atlantic region, which should be carefully monitored given the importance of many commercial marine species for human consumption, mainly in Europe.
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Affiliation(s)
- Paulo Torres
- Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Pólo dos Açores, Ponta Delgada, Açores, Portugal.
- Departamento de Biologia, Universidade dos Açores, 9500-801, Ponta Delgada, Açores, Portugal.
| | - Armindo Rodrigues
- Departamento de Biologia, Universidade dos Açores, 9500-801, Ponta Delgada, Açores, Portugal
- Centro de Vulcanologia e Avaliação de Riscos Geológicos, Ponta Delgada, Açores, Portugal
| | - Lília Soares
- Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Pólo dos Açores, Ponta Delgada, Açores, Portugal
| | - Patrícia Garcia
- Departamento de Biologia, Universidade dos Açores, 9500-801, Ponta Delgada, Açores, Portugal
- Centre for Ecology, Evolution and Environmental Changes, Azorean Biodiversity Group, Ponta Delgada, Portugal
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18
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Álvaro NV, Neto AI, Couto RP, Azevedo JMN, Rodrigues AS. Crabs tell the difference--Relating trace metal content with land use and landscape attributes. CHEMOSPHERE 2016; 144:1377-1383. [PMID: 26492424 DOI: 10.1016/j.chemosphere.2015.10.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 09/21/2015] [Accepted: 10/03/2015] [Indexed: 06/05/2023]
Abstract
Heavy metal concentration in a given locality depends upon its natural characteristics and level of anthropogenic pressure. Volcanic sites have a different heavy metal footprint from agriculture soils and both differ from urban centres. Different animal species absorb heavy metals differently according to their feeding behaviour and physiology. Depending on the capability to accumulate heavy metals, some species can be used in biomonitoring programs for the identification of disturbed areas. Crabs are included in these species and known to accumulate heavy metals. The present study investigates the potential of Pachygrapsus marmoratus (Fabricius, 1787), a small crab abundant in the Azores intertidal, as an indicator of the presence of heavy metals in Azorean coastal environments, comparing hydrothermal vent locations, urban centres and locations adjacent to agricultural activity. Specimens were collected in the same period and had their hepatopancreas removed, dried and analysed for heavy metals. Results revealed differences in concentration of the studied elements between all sampling sites, each one revealing a distinct heavy metal content. Fe, Cu, Mn, Zn and Cd are the metals responsible for separating the various sites. The concentration levels of the heavy metals recorded in the present study reflect the environmental available metals where the organisms live. This, associated to the large availability of P. marmoratus specimens in the Azores, and to the fact that these animals are easy to capture and handle, suggests this species as a potential bioindicator for heavy metal concentration in Azorean coastal areas, both humanized and naturally disturbed.
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Affiliation(s)
- Nuno V Álvaro
- University of the Azores, Department of Biology, Ponta Delgada, Azores, Portugal; cE3c - ABG - Center for Ecology, Evolution and Environmental Changes and Azorean Biodiversity Group, Department of Biology, University of the Azores, 9501-801 Ponta Delgada, Portugal; Centro de Estudos do Clima, Meteorologia e Mudanças Globais, Pólo Universitário de Angra do Heroísmo, 9701-851 Angra do Heroísmo, Portugal.
| | - Ana I Neto
- University of the Azores, Department of Biology, Ponta Delgada, Azores, Portugal; cE3c - ABG - Center for Ecology, Evolution and Environmental Changes and Azorean Biodiversity Group, Department of Biology, University of the Azores, 9501-801 Ponta Delgada, Portugal
| | - Ruben P Couto
- University of the Azores, Department of Biology, Ponta Delgada, Azores, Portugal
| | - José M N Azevedo
- University of the Azores, Department of Biology, Ponta Delgada, Azores, Portugal; cE3c - ABG - Center for Ecology, Evolution and Environmental Changes and Azorean Biodiversity Group, Department of Biology, University of the Azores, 9501-801 Ponta Delgada, Portugal
| | - Armindo S Rodrigues
- University of the Azores, Department of Biology, Ponta Delgada, Azores, Portugal; CVARG, Center for Volcanology and Evaluation of Geological Risks, Ponta Delgada, Portugal
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19
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Kim SJ, Lee HK, Badejo AC, Lee WC, Moon HB. Species-specific accumulation of methyl and total mercury in sharks from offshore and coastal waters of Korea. MARINE POLLUTION BULLETIN 2016; 102:210-215. [PMID: 26614695 DOI: 10.1016/j.marpolbul.2015.11.038] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 11/09/2015] [Accepted: 11/16/2015] [Indexed: 06/05/2023]
Abstract
Limited information is available on mercury (Hg) levels in various shark species consumed in Korea. The methyl-Hg (Me-Hg) and total Hg concentrations in all shark species ranged from 0.08 to 4.5 (mean: 1.2) mg/kg wet weight and from 0.1 to 7.0 (mean: 1.4) mg/kg wet weight, respectively. Inter-species differences in Hg accumulation were found among the species; however, Hg accumulation was homogenous between dorsal and pectoral fins within species. The highest Hg levels were found in aggressive carnivore shark species. Trophic position was important in determining Hg accumulation for aggressive carnivore sharks. Approximately 80% of shark species exceeded the safety limits for Me-Hg established by domestic and international authorities. The mean estimated daily intake of Me-Hg (1.3 μg/kg body weight/day) for Korean populations consuming various sharks was higher than the guidelines proposed by international regulatory authorities, suggesting that excessive shark fin consumption may pose potential health risks for Koreans.
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Affiliation(s)
- Sang-Jo Kim
- National Fishery Products Quality Management Service (FiQ), Busan 606-705, Republic of Korea
| | - Hyun-Kyung Lee
- Department of Marine Sciences and Convergent Technology, College of Science and Technology, Hanyang University, Ansan 426-791, Republic of Korea
| | - Abimbola C Badejo
- Department of Marine Sciences and Convergent Technology, College of Science and Technology, Hanyang University, Ansan 426-791, Republic of Korea
| | - Won-Chan Lee
- Marine Environment Research Division, National Fisheries Research and Development Institute (NFRDI), Busan 619-705, Republic of Korea
| | - Hyo-Bang Moon
- Department of Marine Sciences and Convergent Technology, College of Science and Technology, Hanyang University, Ansan 426-791, Republic of Korea.
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