| heavy metals in the clam megapitaria squalida collected from wild and phosphorite mine-impacted sites in baja california, mexico: considerations for human health effects. | 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. the location of the sampling sites significantly affected the concentration of metals in clam tissues, but not in relation to the proximity to alleged contaminated sites. clams from a site ... | 2006 | 16845163 |
| population dynamics of megapitaria squalida (bivalvia: veneridae) at magdalena bay, baja california sur, mexico. | the population dynamics of an intertidal population of megapitaria squalida was studied from september 2002 to february 2003 in bahia magdalena, mexico. to obtain information about the artisanal and recreational fishery of m. squalida, local fishermen at different parts of the bay were interviewed. clam densities were determined at one unexploited and two exploited sites along perpendicular transects from the shore line. average clam density was 2.01+/-1.41 ind/m2, densities did not differ signi ... | 2006 | 18491642 |