standardization of environmental data and information - International ...

strata), with sampling on a diel basis and examining “temporal variability”.
The design of this deep-water sampling programme needs much more
specification.
2.4.2.2. Surface water
For surface-water studies, the Workshop recommended that the
plankton community in the upper 200 m be characterized in terms of
phytoplankton composition, biomass and production; zooplankton
composition and biomass, and bacterioplankton biomass and productivity.
In addition, temporal variation in the plankton community in surface waters
should be studied, including use (and validation) of remote sensing. The
surface-water studies need to be better defined in terms of parameters to
be measured and sampling design in space and time.
2.4.2.3. Marine mammals
As the final component of biological community assessment, the
Workshop recommended that observations of marine mammals be made
(i.e., sightings and behaviours recorded) during baseline studies, in
particular during transits between stations. It also recommended that
temporal variability be assessed. These recommendations need to be more
specific regarding the types of data to be recorded and how temporal
variability should be assessed. I recommend that input be obtained from a
marine mammalogist (e.g., Dr. Douglas DeMaster) on these points.
2.5. Bioturbation
The requirement for baseline evaluation of bioturbation, as
recommended by LTC, is as follows (paragraph 8(e)):
“gather data of the mixing of sediment by
organism[s]”.
The Sanya Workshop recommended evaluation of bioturbation rates
using excess Pb-210 profiles from multiple cores. Five replicate profiles per
station are recommended, each from separate, randomly located multiplecore
lowering. Excess Pb-210 activity should be evaluated on at least five
levels per core (suggested depths 0-1, 2-3, 4-5, 6-7, 9-10 and 14-15 cm)
and mixing intensities evaluated from standard advection-diffusion models.
The number of stations within the claim area at which bioturbation should
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