Base of productive zone of N. pachyderma during cruises ARK-IV/3, ARK-XI/1, ARK-XIII/2, ARK-XV/1, ARK-XV/2, M21/4, M21/5, M39/4, MSM44, MSM66, MSM09/2, NEWP-92, NEWP-93, PS93.1, PS31, PS78
Based on shell concentrations of the planktonic foraminifera Neogloboquadrina pachyderma from vertically resolved plankton tow samples during cruises ARK-IV/3, ARK-XI/1, ARK-XIII/2, ARK-XV/1, ARK-XV/2, MSM44, MSM66, M21/4, M21/5, M39/4, MSM09/2, NEWP-92, NEWP-93, PS93.1, PS31, PS78, the base of the productive zone is calculated. The calculation is based on the assumption that the base of productive zone is located where shell concentration begins to substantially decline and it is calculated after Lončarić et al. (2006).
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