In vivo accumulation of radioactive polonium by the giant kelp Macrocystis pyrifera

Autor:	V. F. Hodge, T. R. Folsom, J. P. Cowen
Rok vydání:	1976
Předmět:	Ecology Kelp chemistry.chemical_element Aquatic Science Biology biology.organism_classification Kelp forest Animal science chemistry In vivo Botany Macrocystis pyrifera Ecology Evolution Behavior and Systematics Polonium
Zdroj:	Marine Biology. 37:239-248
ISSN:	1432-1793 0025-3162
DOI:	10.1007/bf00387609
Popis:	The in vivo accumulation rate of 210Po by Macrocystis pyrifera (L) Ag. has been determined by the tagging of specific parts of young, growing lamina in La Jolla kelp beds and their subsequent collection for 210Po analysis. The rates of accumulation for observed and growth-corrected data were, respectively, 0.78x10-9 pCi/cm2 sec (1.73x10-9 dpm/cm2 sec) and 1.17x10-9 pCi/cm2 sec (2.60x10-9 dpm/cm2 sec). Invert, but biologically foulable, glass-slide surfaces exposed to the kelp bed environment yielded 210Po accumulation rates of 0.64x10-9 pCi/cm2 sec (1.42x10-9 dpm/cm2 sec), slightly less than those of M. pyrifera. Distinction is made between observed net accumulation rate and gross rates or total flux. Several factors contributing to the final net accumulation rate are discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ba187c97228c3984286653983b0fd5bb https://doi.org/10.1007/bf00387609 Zobrazit plný text záznamu Full text from SpringerLink