Annotated Limacina helicina to demonstrate measurement of physical parameters.

• Main Authors: Siri Ofstad (10720304), Katarzyna Zamelczyk (10720307), Katsunori Kimoto (6433073), Melissa Chierici (3071994), Agneta Fransson (471604), Tine Lander Rasmussen (10720310)
• Format: Still Image
• Language: unknown
• Published: 2021
• Subjects: Biophysics; Ecology; Marine Biology; Inorganic Chemistry; Space Science; Environmental Sciences not elsewhere classified; Biological Sciences not elsewhere classified; Chemical Sciences not elsewhere classified; surface sediment samples; dissolution; water chemistry Planktonic calcifiers; Barents Sea; X-ray microcomputed tomography; Turborotalita quinqueloba; thecosome pteropod Limacina helicina; 300 m water depth; XMCT; planktonic foraminifera; calcium carbonate saturation; foraminiferal species Neogloboquadr.; shell density; pteropod species Limacina helicina; Limacina helicina; Planktonic foraminifera
• Online Access: https://doi.org/10.1371/journal.pone.0249178.s001

Wall thickness measurements were done along a cross-section (blue), and diameter measured along white stippled line. Black circles show location of shell thickness measurements. The shell in the figure has 3.5 whorls. More details on whorl counting method can be found in Janssen [ 53 ]. (TIF)