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MBLs 0tiple «ate mata
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Sponges should be sampled, with three samples
from each af three specigsense uset for count-

ing.
3.

Bio-monitori

of

ante and

@

As previous experiments have shown that there is very
Jittie differense in the levels of aetivity in the various spe-

cies of hand plants and algae, esllieetions could be limited to
three species of signe and three of land planta.

ginese in

eerlier studies there appeared to be no correlation between mm
per of samples taker erd amount of variability in the eeunts,
the beet method of sempling might be to lump seversl samplice together and then tale an aliquot te give an average values.
aliquets should be enough for cheeking.

Go

Time eseh collectian

or gempling would require 6 plates for algae and 13 plates for

t - Gig

Natal i aah

"pert

Ww

a7

ie Sites iS yl, but

land plants (for each looation).
Algse (ontire)

Land Plante

Ral

enevols frutescens
mpeeer6chmidia arse

h.

<2
-2

@lo-sonitering of Plankton

Eveluation of the radioactivity; in plankton ie iaportant
tc studies of cycling of Siseion products in iasocon organisms,
AS ciation $8 Une vit

6 hye F

od

rk

raetd.

Roasnaton ts

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