Mercury levels in selected bycatch fish species from industrial shrimp-trawl fishery in the SE Gulf of California |
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| Institution: | 1. Technological Institute of Mazatlán, P.O. Box 757, Mazatlán 82000, Sinaloa, Mexico;2. Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Av. Joel Montes Camarena s/n, 82040 Mazatlán, Sinaloa, Mexico;3. Technological Institute of Sonora, 5 de Febrero 818 Sur, Col. Centro, Ciudad Obregón, Sonora, Mexico;4. Posgrado en Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México. Circuito Exterior s/n, Ciudad Universitaria, México D.F. 04510, Mexico;1. VU University, De Boelelaan 1085, 1081HV Amsterdam, The Netherlands;2. Universidade Federal do Amazonas (UFAM), Instituto de Educação, Agricultura e Ambiente – IEAA, Rua 29 de Agosto, 786 Bairro Centro, CEP: 69800-000, Humaitá, AM, Brazil;3. Alterra, Droevendaalsesteeg 3, Wageningen, The Netherlands;4. Biogeochemistry Department, Max Planck Institute for Chemistry, Hahn-Meitner-Weg 1, 55128 Mainz, Germany;5. Instituto Nacional de Pesquisas da Amazônia (INPA), Av. André Araújo, 2936 Campus 2, CEP: 69060-020, Manaus, AM, Brazil;1. Institute for Coastal and Marine Environment – National Research Council (IAMC-CNR), Detached Unit of Capo Granitola, Via del Mare, 3, Torretta Granitola, 91021 Campobello di Mazara, TP, Italy;2. School of Biology, Aristotle University of Thessaloniki, 54 124 Thessaloniki, Greece;1. Shaanxi Engineering Research Center of Controllable Neutron Sources, School of Science, Xijing University, Xi’an 710123, China;2. National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology, Harbin 150001, China;3. Heilongjiang Provincial Key Laboratory of Quantum Manipulation & Control, Harbin University of Science and Technology, Harbin 150080, China;4. School of Mathematics and Physics, Anhui University of Technology, Maanshan 243032, China;5. The Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China;1. Department of Ophthalmology, Gyeongsang National University Changwon Hospital, Gyeongsang National University, School of Medicine, Changwon, Gyeongsangnam-do, Republic of Korea;2. Institute of Health Sciences, School of Medicine, Gyeongsang National University, Jinju, Republic of Korea;3. Department of Ophthalmology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea |
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| Abstract: | Baseline Hg concentration in bycatch fish from the SE Gulf of California were determined in muscle and liver of 19 species. Levels of Hg in muscle were compared with legal limits of this element in national and international legislation. Considering all fish species, mean concentrations in liver (2.458 ± 1.997 μg g?1) were significantly higher (p < 0.05) than in muscle (0.993 ± 0.670 μg g?1). The sequence of averaged Hg concentrations in most ichthyofauna was liver > muscle. Highest level of Hg in muscle (2.556 μg g?1) and liver (7.515 μg g?1) corresponded to Diapterus peruvianus and Ophioscion strabo, respectively. Considering muscle samples, none of the species had levels of Hg above the limit (1.0 μg g?1 wet weight) in the Mexican legislation; with respect to the Japanese (0.4 μg g?1 wet weight) and British (0.3 μg g?1 wet weight) legislations, 26.3% and 31.6% of the species respectively, were above the corresponding limits. |
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