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Your search keyword '"Chien-Cheng Lai"' showing total 3 results
Start Over Author "Chien-Cheng Lai" Journal marine pollution bulletin
3 results on '"Chien-Cheng Lai"'

1. Tissue concentrations of Fe, Zn, Cu and Mn of four Taiwanese toothed cetaceans

Author

Yu-Ting Lin, Meng-Hsien Chen, Chiee-Young Chen, Lien-Siang Chou, and Chien-Cheng Lai

Subjects
0106 biological sciences, Kogia, Dolphins, ved/biology.organism_classification_rank.species, Taiwan, chemistry.chemical_element, Zinc, 010501 environmental sciences, Aquatic Science, Oceanography, 01 natural sciences, Superoxide dismutase, Lagenodelphis hosei, Animal science, Animals, Grampus griseus, 0105 earth and related environmental sciences, biology, ved/biology, 010604 marine biology & hydrobiology, Whales, Histology, biology.organism_classification, Pollution, Trace Elements, Liver, chemistry, Stenella attenuata, Bioaccumulation, biology.protein, Cattle
Abstract

Concentrations of Fe, Mn, Zn, and Cu in the muscle, lung, liver, and kidney tissues of 49 cetaceans, including 11 Kogia sima (Ks), 10 Lagenodelphis hosei (Lh), 14 Grampus griseus (Gg), and 14 Stenella attenuata (Sa) from 1994 to 2012 in Taiwan were measured. Ks exhibited the highest Fe, and the lowest Zn, Cu and Mn tissue concentrations. The Kogiid and Delphinid groups were significantly categorized by nMDS analysis. Fe muscle concentrations were found to be positively correlated with Ks, Lh, and Gg but not Sa body length. The different levels of Zn-, Cu-, and Mn- tissue concentrations of the two families were due to their different SOD systems. Their calves contained higher Cu liver concentrations. The four essential elements in cetaceans regulate homeostasis to meet their eco-physiological demand. The baseline levels for these four elements in these four tissues in the Delphinid group are defined.

Published
2020
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2. Total and organic mercury concentrations in the muscles of Pacific albacore (Thunnus alalunga) and bigeye tuna (Thunnus obesus)

Author

Chiee-Young Chen, Chien-Cheng Lai, Chien-Chung Hsu, Kuo-Shu Chen, Meng-Hsien Chen, and Chin-Chang Hung

Subjects
Organomercury Compounds, chemistry.chemical_element, Bigeye tuna, chemical and pharmacologic phenomena, Food Contamination, Aquatic Science, Oceanography, Fish measurement, chemistry.chemical_compound, Animal science, Predatory fish, Animals, Muscle, Skeletal, Methylmercury, biology, Albacore, Tuna, Dietary intake, Body Weight, hemic and immune systems, Mercury, biology.organism_classification, Pollution, Mercury (element), Fishery, chemistry, Seafood, Bioaccumulation, Water Pollutants, Chemical, Environmental Monitoring
Abstract

Muscles of 115 North Pacific albacore (ALB, Thunnus alalunga) and 75 Pacific bigeye tuna (BET, Thunnus obesus), collected from 2001 to 2006, were analyzed. No ALB, but 13 large BET had organic mercury (OH g) concentrations exceeding 1 μg g(-1) wet weight. For both ALB and BET, total mercury (THg) and OH g concentrations were significantly and positively correlated with fork length (FL) and body weight. The muscle Hg bioaccumulation rates of BET were higher than those of ALB, particularly in the adult fish. Moreover, the lines had crossover points among the two species that imply the young BET (FL

Published
2013

3. Total and organic mercury concentrations in the muscles of Pacific albacore (Thunnus alalunga) and bigeye tuna (Thunnus obesus).

Author

Chiee-Young Chen, Chien-Cheng Lai, Kuo-Shu Chen, Chien-Chung Hsu, Chin-Chang Hung, and Meng-Hsien Chen

Subjects
ALBACORE, MUSCLES, MERCURY poisoning, BIGEYE tuna, BIOACCUMULATION in fishes, METHYLMERCURY, PREDATORS of fishes
Abstract

Muscles of 115 North Pacific albacore (ALB, Thunnus alalunga) and 75 Pacific bigeye tuna (BET, Thunnus obesus), collected from 2001 to 2006, were analyzed. No ALB, but 13 large BET had organic mercury (OHg) concentrations exceeding 1 μg g-1 wet weight. For both ALB and BET, total mercury (THg) and OHg concentrations were significantly and positively correlated with fork length (FL) and body weight. The muscle Hg bioaccumulation rates of BET were higher than those of ALB, particularly in the adult fish. Moreover, the lines had crossover points among the two species that imply the young BET (FL < 110 cm) contains lower muscle Hg concentrations than ALB of the same size. The suggested weekly dietary intake of ALB and small-BET meats is 340 g, and of BET meat it is 150 g for a 60-kg person based on the provisional tolerable weekly intake (PTWI) of methylmercury set by the WHO. [ABSTRACT FROM AUTHOR]

Published
2014
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