Webbläsaren som du använder stöds inte av denna webbplats. Alla versioner av Internet Explorer stöds inte längre, av oss eller Microsoft (läs mer här: * https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Var god och använd en modern webbläsare för att ta del av denna webbplats, som t.ex. nyaste versioner av Edge, Chrome, Firefox eller Safari osv.

Helena Filipsson, foto Erik Thor

Helena Filipsson

Professor

Helena Filipsson, foto Erik Thor

Climate variability and anthropogenic impacts through a palaeo-morphological lens: an innovative microCT approach using Baltic Sea benthic foraminifera

Författare

  • Helena L. Filipsson
  • Constance Choquel
  • Jonas Donnenfield
  • Sha Ni
  • Gerhard Schmiedl
  • Dirk Müter
  • Behnaz Pirzamanbein

Summary, in English

Human-induced impacts are increasing pressure on coastal ecosystems, particularly on benthic ecosystems in high-latitude regions. It has become evident that three of the greatest marine environmental challenges related to anthropogenic activity are warming, ocean acidification, and deoxygenation. The effect of these environmental changes on our uncertain future has created a need to understand their severity and potential outcomes, and geological records can provide a much-needed perspective of environmental processes extending beyond the instrumental period. Within palaeoceanography, marine microfossil species distribution and geochemistry have long been used as proxies for reconstructing environmental changes. Here, we explore an alternative avenue by using calcareous foraminiferal shell morphology (e.g., shell volume, shell thickness, pore density) to study past coastal environments. We have performed tomographic X-ray microcomputation analyses on foraminifera for three-dimensional (3D) shell reconstruction from different sites and periods (e.g., the last 200 years, and the last deglaciation from ~18 to ~11 ka BP into the Holocene) in the Baltic Sea region. These data are combined with conventional faunal analyses of the foraminiferal fauna. We will discuss the advantages, challenges, and future prospects of micro-computed tomography and 3D imaging, how the field has developed over time, and how to manage massive data in the environmental sciences.

Avdelning/ar

  • Geologiska institutionen
  • BECC: Biodiversity and Ecosystem services in a Changing Climate
  • Statistiska institutionen

Publiceringsår

2023-07

Språk

Engelska

Dokumenttyp

Konferensbidrag: abstract

Ämne

  • Climate Science

Conference name

INQUA 2023

Conference date

2022-07-14 - 2023-09-21

Conference place

Rome, Italy

Aktiv

Published