| Title |
Mercury and Selenium in Muscle and Target Organs of Scalloped Hammerhead Sharks Sphyrna lewini of the SE Gulf of California: Dietary Intake, Molar Ratios, Loads, and Human Health Risks
|
|---|---|
| Published in |
Archives of Environmental Contamination and Toxicology, September 2015
|
| DOI | 10.1007/s00244-015-0226-8 |
| Pubmed ID | |
| Authors |
Magdalena E. Bergés-Tiznado, Fernando Márquez-Farías, Raúl E. Lara-Mendoza, Yassir E. Torres-Rojas, Felipe Galván-Magaña, Humberto Bojórquez-Leyva, Federico Páez-Osuna |
| Abstract |
Selenium and mercury were evaluated in muscle, liver, kidney, brain, and the stomach contents of juvenile scalloped hammerhead shark Sphyrna lewini. Se:Hg molar ratios were calculated. The average Hg levels in muscle ranged from 0.12 to 1.17 μg/g (wet weight); Hg was <0.39 μg/g in liver and kidneys and <0.19 μg/g in brain. The lowest value of Se was found in muscle (0.4 μg/g) and the highest in kidney (26.7 μg/g). An excess of Se over Hg was found, with Se:Hg molar ratios >1. Correlations were found for Hg in muscle with size, age, and weight, and also for Hg in liver with size, age, and weight. Hg in muscle was significantly positive correlated to Hg in brain as well as Hg in liver was correlated to Hg in kidney. The highest Hg in preys was for carangid fishes; scombrid and carangid fishes contributed with the highest Se levels. Results suggest that more than 98 % of the total Hg and 62 % of Se end up in muscle and might be affected by factors, such as geographical area, age, size, and feeding habits. The muscle of S. lewini should be consumed by people cautiously so as not to exceed the recommended intake per week. |
X Demographics
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Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 2 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 2 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 81 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Portugal | 1 | 1% |
| Unknown | 80 | 99% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 16 | 20% |
| Student > Ph. D. Student | 11 | 14% |
| Student > Bachelor | 11 | 14% |
| Student > Master | 7 | 9% |
| Student > Doctoral Student | 4 | 5% |
| Other | 8 | 10% |
| Unknown | 24 | 30% |
| Readers by discipline | Count | As % |
|---|---|---|
| Agricultural and Biological Sciences | 25 | 31% |
| Environmental Science | 13 | 16% |
| Medicine and Dentistry | 5 | 6% |
| Biochemistry, Genetics and Molecular Biology | 2 | 2% |
| Pharmacology, Toxicology and Pharmaceutical Science | 1 | 1% |
| Other | 6 | 7% |
| Unknown | 29 | 36% |
Attention Score in Context
This research output has an Altmetric Attention Score of 2. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 15 September 2015.
All research outputs
#15,988,318
of 23,806,312 outputs
Outputs from Archives of Environmental Contamination and Toxicology
#1,471
of 2,093 outputs
Outputs of similar age
#159,091
of 269,975 outputs
Outputs of similar age from Archives of Environmental Contamination and Toxicology
#20
of 40 outputs
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