Hypoxia-tolerant zooplankton may reduce biological carbon pump efficiency in the Humboldt current system off Peru

Autor: Anja Engel, Carolina Cisternas-Novoa, Helena Hauss, Rainer Kiko, Frédéric A. C. Le Moigne

Publikováno v: Communications Earth & Environment, Vol 4, Iss 1, Pp 1-8 (2023)

Abstract In the ocean, downward flux of particles produced in sunlit surface waters is the major component of the biological carbon pump, which sequesters atmospheric carbon dioxide and fuels deep-sea ecosystems. The efficiency of downward carbon tra

Externí odkaz: https://doaj.org/article/45c34d2d066d4876aa975fa623ee4dd1

Fungal parasitism on diatoms alters formation and bio–physical properties of sinking aggregates

Autor: Isabell Klawonn, Silke Van den Wyngaert, Morten H. Iversen, Tim J. W. Walles, Clara M. Flintrop, Carolina Cisternas-Novoa, Jens C. Nejstgaard, Maiko Kagami, Hans-Peter Grossart

Publikováno v: Communications Biology, Vol 6, Iss 1, Pp 1-14 (2023)

Fungal parasites are found to effectively control the fate of phytoplankton-derived organic matter, potentially enhancing remineralization and reducing sedimentation in freshwater and coastal systems.

Externí odkaz: https://doaj.org/article/14918b2bb2794477bfc5e158402a4e6b

Effects of Higher CO2 and Temperature on Exopolymer Particle Content and Physical Properties of Marine Aggregates

Autor: Carolina Cisternas-Novoa, Cindy Lee, Tiantian Tang, Roman de Jesus, Anja Engel

Publikováno v: Frontiers in Marine Science, Vol 5 (2019)

We investigated how future ocean conditions, and specifically the interaction between temperature and CO2, might affect marine aggregate formation and physical properties. Initially, mesocosms filled with coastal seawater were subjected to three diff

Externí odkaz: https://doaj.org/article/1e25193df8ed46b799aa155867b4781f

Composition and vertical flux of particulate organic matter to the oxygen minimum zone of the central Baltic Sea: impact of a sporadic North Sea inflow

Autor: Carolina Cisternas-Novoa, Anja Engel, Frédéric A. C. Le Moigne

Publikováno v: Biogeosciences
Biogeosciences, European Geosciences Union, 2019, 16 (4), pp.927-947. ⟨10.5194/bg-16-927-2019⟩
Biogeosciences, Vol 16, Pp 927-947 (2019)
Biogeosciences (BG), 16 . pp. 927-947.

Particle sinking is a major form of transport for photosynthetically fixed carbon to below the euphotic zone via the biological carbon pump (BCP). Oxygen (O2) depletion may improve the efficiency of the BCP. However, the mechanisms by which O2 defici

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::098c3537530df4546cab9853c8fd06db
https://hal.archives-ouvertes.fr/hal-02078398/file/bg-16-927-2019.pdf

Transparent exopolymer particles (TEP) and Coomassie stainable particles (CSP): Differences between their origin and vertical distributions in the ocean

Autor: Cindy Lee, Carolina Cisternas-Novoa, Anja Engel

Publikováno v: Marine Chemistry. 175:56-71

Highlights: • TEPs and CSPs showed different production patterns and particle-association behaviors. • TEPs and CSPs had different vertical distributions in the Sargasso Sea. • CSP as well as TEP gels are linked by cation bridging. • FlowCAM

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ebacd857275fa8a02f11580e0febceb2
https://doi.org/10.1016/j.marchem.2015.03.009