Question

I want to investigate the influence of glacial melting on the 18O signature of foraminifera shells. I want to compare the Arctic (which is melting rapidly) and the Antarctic (which has just started melting). For this I need a foraminiferal species that occurs both in the Atlantic in the Arctic and in the Antarctic.

For the Arctic I have found Neogloboquadrina pachyderma and Turborotalita quinqueloba but I don't know if they also occur in the Antarctic. Does anyone have a publication or database on this? It does not have to be the mentioned foraminifera species, it can also be other species.

By the way, we are talking about planktonic foraminifera and not bentonic foraminifera. This means that they must live close to the water surface.

Answer 1

Neogloboquadrina pachyderma and Turborotalita quinqueloba are two species of planktonic foraminifera that occur in both the Arctic and Antarctic regions and are commonly used in studies on glacial melting.

Step-by-step explanation:

There are two species of planktonic foraminifera that occur in both the Arctic and Antarctic regions: Neogloboquadrina pachyderma and Turborotalita quinqueloba. These species are commonly used in studies investigating the influence of glacial melting on the 18O signature of foraminifera shells. While there may be other species of foraminifera that occur in both regions, these two species are well-documented and widely studied.