Bioaccumulation and biomagnification of total mercury in four exploited shark species in the Baja California Peninsula, Mexico.

Authors:
Address: Universidad de Cádiz, Campus Río San Pedro s/n, 11510 Puerto Real, Cádiz, Spain.
Journal:

Publication:

abstract

the present study determined the average mercury Bioaccumulation in the muscle tissue of four shark species (Carcharhinus falciformis, Prionace glauca, Sphyrna zygaena and Isurus oxyrinchus) captured in the Baja California Peninsula. We also evaluated biomagnification of some prey consumed by sharks. All sharks' species had mercury levels over the limit specified by the Mexican government for human consumption. Blue shark (P. glauca) presented highest mercury values (1.96 ± 1.48 μg/g Hg d.w.) and it was the unique specie that showed a negative correlation with mercury content (Rs = -0.035, p = 0.91). Scomber japonicus was the prey with high content of mercury (0.57 ± 0.02 μg/g).

Related Articles
Biomagnification of mercury and selenium in blue shark Prionace glauca from the Pacific Ocean off Mexico.
Biol Trace Elem Res. 2011
Biomagnification of mercury and selenium in blue shark Prionace glauca from the Pacific Ocean off Mexico.
Escobar-Sánchez O, Galván-Magaña F, Rosíles-Martínez R. Biol Trace Elem Res. 2011 Dec; 144(1-3):550-9. Epub 2011 Apr 5.
Mercury and selenium bioaccumulation in the smooth hammerhead shark, Sphyrna zygaena Linnaeus, from the Mexican Pacific Ocean.
Bull Environ Contam Toxicol. 2...
Mercury and selenium bioaccumulation in the smooth hammerhead shark, Sphyrna zygaena Linnaeus, from the Mexican Pacific Ocean.
Escobar-Sánchez O, Galván-Magaña F, Rosíles-Martínez R. Bull Environ Contam Toxicol. 2010 Apr; 84(4):488-91. Epub 2010 Mar 30.
[Fishery of oceanic and coastal sharks in Colima, Jalisco and Michoacán].
Rev Biol Trop. 2011
[Fishery of oceanic and coastal sharks in Colima, Jalisco and Michoacán].
Cruz A, Soriano SR, Santana H, Ramírez CE, Valdez JJ. Rev Biol Trop. 2011 Jun; 59(2):655-67.
[Total mercury in muscle of the shark Prionace glauca (Linnaeus, 1758) and swordfish Xiphias gladius Linnaeus, 1758, from the South-Southeast coast of Brazil and the implications for public health].
Cad Saude Publica. 2008
[Total mercury in muscle of the shark Prionace glauca (Linnaeus, 1758) and swordfish Xiphias gladius Linnaeus, 1758, from the South-Southeast coast of Brazil and the implications for public health].
Dias AC, Guimarães JR, Malm O, Costa PA. Cad Saude Publica. 2008 Sep; 24(9):2063-70.
Review Mercury in fishes of Alaska, with emphasis on subsistence species.
Sci Total Environ. 2007
Review Mercury in fishes of Alaska, with emphasis on subsistence species.
Jewett SC, Duffy LK. Sci Total Environ. 2007 Nov 15; 387(1-3):3-27. Epub 2007 Sep 7.

To top • Home

TraveldoctorOnline 2001 • Disclaimer • webmaster

The contents within traveldoctoronline are presented only for informational purposes and cannot substitute for professional health care or any other medical treatment.All users of this website with health problems should be oblige always to consult their medical doctor before starting any treatment.