Results 41 to 50 of about 84 (58)
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Bulletin of Environmental Contamination and Toxicology, 2019
The present study shows the human health risk of Cd, Cu, Hg and Zn by consumption of clams Megapitaria squalida from Northwest Mexico, collected in 2013. The mean concentration for each metal in the soft tissue was: Zn > Cu > Cd > Hg; and mean values of 68.89 ± 37.59-30.36 ± 27.19, 8.77 ± 1.35-6.80 ± 0.36, 4.47 ± 0.21-3.18 ± 0.63 and 0.99 ± 0.81-0.52 ±
Martin Frías-Espericueta +2 more
exaly +3 more sources
The present study shows the human health risk of Cd, Cu, Hg and Zn by consumption of clams Megapitaria squalida from Northwest Mexico, collected in 2013. The mean concentration for each metal in the soft tissue was: Zn > Cu > Cd > Hg; and mean values of 68.89 ± 37.59-30.36 ± 27.19, 8.77 ± 1.35-6.80 ± 0.36, 4.47 ± 0.21-3.18 ± 0.63 and 0.99 ± 0.81-0.52 ±
Martin Frías-Espericueta +2 more
exaly +3 more sources
Marine invertebrate agglutinins: The lectin from Megapitaria squalida clam
1985exaly +2 more sources
Journal of Aquatic Animal Health, 2018
Abstract The gonadal health status of the chocolate clam Megapitaria squalida collected from the Santa Rosalía mining port and San Lucas beach (reference site), Gulf of California, Mexico, was assessed through histological analysis of the reproductive tissue, from which the histopathological alteration index (HAI) was determined.
Josué Alonso, Yee-Duarte +4 more
openaire +2 more sources
Abstract The gonadal health status of the chocolate clam Megapitaria squalida collected from the Santa Rosalía mining port and San Lucas beach (reference site), Gulf of California, Mexico, was assessed through histological analysis of the reproductive tissue, from which the histopathological alteration index (HAI) was determined.
Josué Alonso, Yee-Duarte +4 more
openaire +2 more sources
Journal of Shellfish Research, 2009
ABSTRACT Through histological analyses, this investigation reveals an unusual high incidence of hermaphroditism in Megapitaria squalida, a gonochoric species. A total of 684 specimens were sampled at monthly intervals from February 2007 to January 2008 at Bahia de La Paz and Bahia Magdalena, Baja California Sur, Mexico.
Abril K. Romo Piñera +3 more
openaire +1 more source
ABSTRACT Through histological analyses, this investigation reveals an unusual high incidence of hermaphroditism in Megapitaria squalida, a gonochoric species. A total of 684 specimens were sampled at monthly intervals from February 2007 to January 2008 at Bahia de La Paz and Bahia Magdalena, Baja California Sur, Mexico.
Abril K. Romo Piñera +3 more
openaire +1 more source
Bulletin of Environmental Contamination and Toxicology, 2018
We evaluated the total Hg concentration in different tissues of squalid callista Megapitaria squalida in order to measure Hg distribution in tissue and to estimate human health risk. Samples were obtained by free diving in the SW Gulf of California, Mexico. Concentrations are given on a wet weight basis.
Martin Frías-Espericueta +2 more
exaly +3 more sources
We evaluated the total Hg concentration in different tissues of squalid callista Megapitaria squalida in order to measure Hg distribution in tissue and to estimate human health risk. Samples were obtained by free diving in the SW Gulf of California, Mexico. Concentrations are given on a wet weight basis.
Martin Frías-Espericueta +2 more
exaly +3 more sources
Biological Trace Element Research, 2006
The "chocolate clam" Megapitaria squalida, is widely consumed by the population of several localities along the Pacific coast. Clams collected from seven stations in Bahía de la Paz, a bay within the Gulf of California, before and after the summer rainy season were analyzed for Pb, Ni, Cd, Mn, Zn, Cu, and Fe.
Elena Palacios Mechetnov +1 more
exaly +3 more sources
The "chocolate clam" Megapitaria squalida, is widely consumed by the population of several localities along the Pacific coast. Clams collected from seven stations in Bahía de la Paz, a bay within the Gulf of California, before and after the summer rainy season were analyzed for Pb, Ni, Cd, Mn, Zn, Cu, and Fe.
Elena Palacios Mechetnov +1 more
exaly +3 more sources
Archives of Environmental Contamination and Toxicology, 2008
The black chocolate clam Megapitaria squalida is a commercially important bivalve along the Pacific coast of Mexico and is used as a bioindicator in environmental health studies. Previous studies of Bahía de La Paz indicated significant differences in heavy metal content among localities in this clam. To identify areas affected by heavy metal pollution,
Tania Zenteno-Savín +2 more
exaly +3 more sources
The black chocolate clam Megapitaria squalida is a commercially important bivalve along the Pacific coast of Mexico and is used as a bioindicator in environmental health studies. Previous studies of Bahía de La Paz indicated significant differences in heavy metal content among localities in this clam. To identify areas affected by heavy metal pollution,
Tania Zenteno-Savín +2 more
exaly +3 more sources
Marine Pollution Bulletin, 2020
We studied the effects of chronic exposure to metals on energy reserves and reproduction in the clam Megapitaria squalida in two nearby populations exposed to different levels of pollution from mining operations in the Gulf of California, Mexico. Female M.
Ilie Racotta +2 more
exaly +3 more sources
We studied the effects of chronic exposure to metals on energy reserves and reproduction in the clam Megapitaria squalida in two nearby populations exposed to different levels of pollution from mining operations in the Gulf of California, Mexico. Female M.
Ilie Racotta +2 more
exaly +3 more sources
Journal of Shellfish Research, 2017
The prevalence of parasites in gonads of the clam Megapitaria squalida (Sowerby, 1835) was investigated at Santa Rosalia mining port in the Gulf of California. A total of 696 gonads were histologically analyzed, observing an unusual parasitic castration caused by the development of trematode larvae within follicles.
Josué A. Yee-Duarte +4 more
openaire +1 more source
The prevalence of parasites in gonads of the clam Megapitaria squalida (Sowerby, 1835) was investigated at Santa Rosalia mining port in the Gulf of California. A total of 696 gonads were histologically analyzed, observing an unusual parasitic castration caused by the development of trematode larvae within follicles.
Josué A. Yee-Duarte +4 more
openaire +1 more source
Marine Pollution Bulletin
Over a reproductive cycle, the prevalence and intensity of degeneration of testicular follicles in Megapitaria squalida collected from the mining port of Santa Rosalia (a highly metal-polluted area), and San Lucas (a less polluted site), Gulf of California, Mexico, were evaluated.
Marcial Arellano-Martínez +1 more
exaly +3 more sources
Over a reproductive cycle, the prevalence and intensity of degeneration of testicular follicles in Megapitaria squalida collected from the mining port of Santa Rosalia (a highly metal-polluted area), and San Lucas (a less polluted site), Gulf of California, Mexico, were evaluated.
Marcial Arellano-Martínez +1 more
exaly +3 more sources