Mathematics – Logic
Scientific paper
Aug 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994gecoa..58.3183h&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 58, Issue 15, pp.3183-3189
Mathematics
Logic
Scientific paper
In order to gain information about the behavior of heavy metals in biological assimilation processes in a marine food chain and to investigate the possibility that lead pollution in a marine environment can be estimated by measurement of a small number of key materials from such a food chain, muscle and shell were analyzed from abalone ( Haliotis ) from a shallow water locality in a Japanese coastal region. Lead concentrations in muscle were about 26 ppb for abalone of approximately 3 years old and decreased systematically with increasing age of animals sampled, to about 3.3 ppb for a specimen approximately 8 years old. Lead concentrations in shell material gradually decreased also, from 150 ppb to 82 ppb in the oldest specimen. The decrease of concentration in tissues with increasing age indicates that a mechanism for exclusion of lead during tissue growth becomes more efficient with age. Along the food chain in which abalone is the final stage, lead was enriched at the first stage, from seawater to algae, by a factor of 100. Lead was diminished at all subsequent stages of the chain. Tissue of artificially cultured abalone had four times higher lead values compared to abalone grown in natural conditions, and this appears to reflect the fact that lead concentration was three times higher in seawater in the cultured environment.
Hirao Yoshimitsu
Kimura Kan
Maeda Masaru
Matsumoto Akikazu
Yamakawa Hiroshi
No associations
LandOfFree
Lead behavior in abalone shell does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Lead behavior in abalone shell, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lead behavior in abalone shell will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1495899