Trace elements in bone of Zalophus californianus from the Gulf of California: a comparative assessment of potentially polluted areas
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In this paper, a top predator, California sea lions (Zalophus californianus) can be used as sentinels to record ecosystem conditions because of the trace metals that they consume.Abstract:
Resumen es: As a top predator, California sea lions (Zalophus californianus) can be used as sentinels to record ecosystem conditions because of the trace metals that...read more
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Journal ArticleDOI
Current status of the California sea lion (Zalophus californianus) and the northern elephant seal (Mirounga angustirostris) at the San Benito Archipelago, Mexico
TL;DR: In this article, the authors report the results of the first survey to gather abundance information from continuous breeding seasons (2012-2015) and over the course of a single year (2014), relative to the previous year, the abundance of CSLs declined in July 2014; however, based on historical censuses, the colony at the archipelago was catalogued as stable.
Journal ArticleDOI
Historic variation of trace elements in pinnipeds with spatially segregated trophic habits reveals differences in exposure to pollution.
Maite De María,Diana Szteren,Javier García-Alonso,Carlos Eduardo de Rezende,Rodrigo A. Gonçalves,José Marcus Godoy,Francisco R. Barboza +6 more
TL;DR: Historic changes in concentrations of trace elements in teeth of Otaria byronia and Arctocephalus australis from 1941 to the present day are analyzed to highlight dentin as a reliable matrix for historic studies on the exposure to trace elements.
Journal ArticleDOI
Metals in Bone Tissue of Antillean Manatees from the Gulf of Mexico and Chetumal Bay, Mexico
Ana G. Romero-Calderón,Benjamín Morales-Vela,Rene Rosiles-Martínez,León David Olivera-Gómez,Alberto Delgado-Estrella +4 more
TL;DR: Metal concentrations detected in the manatee bones were higher than most of those reported for bones in other marine mammals around the world, with greater levels found in the Gulf of Mexico group than in the Mexican Caribbean group.
Journal ArticleDOI
A whale of a tale: A One Environmental Health approach to study metal pollution in the Sea of Cortez.
John Pierce Wise,Tayler J. Croom-Perez,Idoia Meaza,AbouEl-Makarim Aboueissa,Carlos A. López Montalvo,Mark Martin-Bras,Rachel M. Speer,Andrea Bonilla-Garzón,R Jorge Urbán,Christopher Perkins +9 more
TL;DR: Results indicate a recent change in the metal input to the Sea of Cortez, which may indicate a decreased concern for human, animal, and ecosystem health for some metals, but raises concern for the genotoxic metals Cr and Ni.
Book ChapterDOI
California Sea Lion (Zalophus californianus, Lesson 1828)
TL;DR: The California sea lion has a polygynous lek reproductive system; the breeding season occurs during the summer (May-August). Females give birth to one pup per season, and the lactation period can last from 11 months up to a year or more, with females alternating feeding trips at sea with short stays on land to nurse their young as mentioned in this paper.
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Mercury Hazards to Fish, Wildlife, and Invertebrates: A Synoptic Review
TL;DR: A review of the available literature on the ecological and toxicological aspects of mercury (Hg) in the environment, with special reference to fish and wildlife resources, is reviewed and summarized in this paper.
Journal ArticleDOI
Cephalopods as a vector for the transfer of cadmium to top marine predators in the north-east Atlantic Ocean
TL;DR: Comparison of the weekly Cd intakes for the Faroe Island pilot whales with the 'Provisional Tolerable Weekly Intake' for humans recommended by the World Health Organisation showed that top vertebrate predators are often subjected to Cd doses far in excess of those recommended for humans.
Journal ArticleDOI
Detoxification mechanism of heavy metals in marine mammals and seabirds: interaction of selenium with mercury, silver, copper, zinc, and cadmium in liver.
Tokutaka Ikemoto,Takashi Kunito,Hiroyuki Tanaka,Norihisa Baba,Nobuyuki Miyazaki,Shinsuke Tanabe +5 more
TL;DR: It is notable that the existing state of silver was similar to that of mercury as judged by their subcellular distribution and the extraction tests, suggesting that silver also interacted with selenium in the liver of marine animals used in this study.
Journal ArticleDOI
Influence of Trophic Position and Feeding Location on Contaminant Levels in the Gulf of the Farallones Food Web Revealed by Stable Isotope Analysis
TL;DR: A novel method of using egg albumen to determine stable isotope values was used and the values of δ13C and δ15N were consistant with a pelagic/offshore vs benthic/inshore results found in other studies.