Contaminants in marine organisms: Pooling strategies for monitoring mean concentrations.
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Date
1996Author
Nicholson, M. D.
Fryer, R. J.
Status
PublishedPages
30pp.
Metadata
Show full item recordAbstract
Samples
of
marine
organisms
collected
for
contaminant
monitoring
are
often
pooled
before
being
chemically
analysed.
The
main
reasons
for
pooling
samples
are:
1)
to
obtain
a sufficient
quantity
of
tissue
to
make
the
chemical
analysis
possible;
2)
to
reduce
the
overall
cost
of
chemical
analyses;
3)
to
improve
the
precision
of
the
estimated
mean
contaminant
concentration
in
a population
by
increasing
the
sample
size
without
increasing
the
number
of
chemical
analyses.
However,
there
are
several
questions
associated
with
pooling,
including:
•
what
is
an
appropriate
pooling
strategy?
•
how
should
data
from
pools
be
statistically
analysed?
•
how
should
results
derived
from
pooled
data
be
interpreted?
This
document
is
an
introduction
to
the
statistical
aspects
of
pooling.
Unfortunately,
it
is
not
possible
to
consider
all
the
situations
in
which
pooling
might
arise,
.....
Resource URL
Publisher: http://ices.dk/publications/library/Publisher
International Council for the Exploration of the Sea (ICES)Copenhagen, Denmark
Series;Nr
ICES Techniques in Marine Environmental Sciences; 18Document Language
enSustainable Development Goals (SDG)
14.1Best Practice Type
Standard Operating ProcedureGuide
ISSN
0903–2606Citation
Nicholson, M. D., and Fryer, R.J. (1996) Contaminants in marine organisms: Pooling strategies for monitoring mean concentrations. ICES Techniques in Marine Environmental Sciences, No.18, 30pp. DOI: http://dx.doi.org/10.25607/OBP-254Collections