Page 11 - 727-IJMS-No. 20-Dr. Mauro Lenzi

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International Journal of Marine Science 2013, Vol.3, No.20, 158-165
http://ijms.sophiapublisher.com
164
Fifteen samples were collected from a 20×20 cm
square in each plot (6000 cm
2
total) for determination
of biomass. There were many rocks in LB-a, from
which we scraped the covering of vegetation. Samples
were washed to remove impurities and divided into
two portions, isolating
Caulerpa racemosa
(
C.r
.) thalli
from the other macroalgal species (O). The two
macroalgal portions were then oven-dried at 85
for
24 hours. Total biomass (T=
C.r
.+O) and the percentage
of
C. racemosa
on total biomass (%
C.r
.=
C.r
. * 100 *
T
-1
) were then computed.
Only a simple survey was carried out in the
P. oceanica
barrier-reef meadow and other parts of LB, mainly to
establish the degree of invasion by
C. racemosa
.
Authors' contributions
ML conceived the experimental design, participated in the field survey,
sampling and species determinations and drafted the manuscript. FB
participated in the field survey, sampling and species determinations. MGF
performed the statistical analysis and helped draft the manuscript.
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