North Sea selected groups
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资源简介：
Same methodology as last time - however note that due to a slightly different method with collated total diatoms and dinoflagellates, indication of presence only can now be multiples of 0.0000000001 (ie if there were a three diatom taxa recorded as present only, and no other diatoms, you could get values of 0.0000000003 - this should still be treated as presence only).
创建时间：
2023-03-22
