Temporal variations of137Cs concentrations in the surface seawater and marine organisms collected from the Japanese coast during the 1980's

1998 ◽  
Vol 230 (1-2) ◽  
pp. 111-114 ◽  
Author(s):  
M. Yamada ◽  
Y. Nagaya
1998 ◽  
Vol 45 (4-5) ◽  
pp. 609-623 ◽  
Author(s):  
C. Goyet ◽  
F.J. Millero ◽  
D.W. O’Sullivan ◽  
G. Eischeid ◽  
S.J. McCue ◽  
...  

1998 ◽  
Vol 59 (3-4) ◽  
pp. 189-200 ◽  
Author(s):  
A.M Murata ◽  
I Kaneko ◽  
K Nemoto ◽  
K Fushimi ◽  
M Hirota

Author(s):  
V. Ramadas ◽  
G. Chandralega

Sponges, exclusively are aquatic and mostly marine, are found from the deepest oceans to the edge of the sea. There are approximately 15,000 species of sponges in the world, of which, 150 occur in freshwater, but only about 17 are of commercial value. A total of 486 species of sponges have been identified in India. In the Gulf of Mannar and Palk Bay a maximum of 319 species of sponges have been recorded. It has been proved that marine organisms are excellent source of bioactive secondary metabolites and number of compounds of originated from marine organisms had been reported to possess in-vitro and in-vivo immuno stimulatory activity. Extracts from 20 sponge species were tested for bacterial symbionts and bioactive compounds were isolated from such associated bacterial species in the present study.


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