Výsledky vyhledávání - "Niko Lahajnar"

Akademický článek

Simulating potential impacts of bottom trawling on the biological carbon pump: a case study in the Benguela Upwelling System

Autor: Claire Siddiqui, Tim Rixen, Niko Lahajnar, Tarron Lamont, Anja K. van der Plas

Publikováno v: Frontiers in Marine Science, Vol 11 (2024)

Bottom-trawl fishery is known to cause major disturbances to marine sediments as the dragging of trawl gears across the seabed fosters sediment resuspension, which can lead to organic particle remineralization and release of benthic CO2 and nutrients

Externí odkaz: https://doaj.org/article/c50c1620e2a14052b0f447d6c90e0303

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Akademický článek

Regional and global impact of CO2 uptake in the Benguela Upwelling System through preformed nutrients

Autor: Claire Siddiqui, Tim Rixen, Niko Lahajnar, Anja K. Van der Plas, Deon C. Louw, Tarron Lamont, Keshnee Pillay

Publikováno v: Nature Communications, Vol 14, Iss 1, Pp 1-11 (2023)

Abstract Eastern Boundary Upwelling Systems (EBUS) are highly productive ecosystems. However, being poorly sampled and represented in global models, their role as atmospheric CO2 sources and sinks remains elusive. In this work, we present a compilati

Externí odkaz: https://doaj.org/article/9f1b38331a0940efa951006e76b4d9e7

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Akademický článek

Planktonic foraminifera fluxes and their response to the Asian Monsoon: insights from the Maldives, Indian Ocean

Autor: Maria Caezare Mae R. Cariño, Alyssa M. Peleo-Alampay, Martin G. Wiesner, Leopoldo P. de Silva, Niko Lahajnar, Christian Betzler, Ibrahim Fikree, Thomas Lüdmann

Publikováno v: Frontiers in Earth Science, Vol 11 (2023)

This study describes seasonal changes in the fluxes of planktonic foraminifera in response to changes in environmental conditions during the Asian Monsoon. Sediment trap systems were deployed for a period of 1 year at two locations in the Maldives: K

Externí odkaz: https://doaj.org/article/a2e14f4228814969b471163954dc7a67

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Akademický článek

Nitrate Regeneration and Loss in the Central Yellow Sea Bottom Water Revealed by Nitrogen Isotopes

Autor: Shichao Tian, Birgit Gaye, Jianhui Tang, Yongming Luo, Niko Lahajnar, Kirstin Dähnke, Tina Sanders, Tianqi Xiong, Weidong Zhai, Kay-Christian Emeis

Publikováno v: Frontiers in Marine Science, Vol 9 (2022)

The Yellow Sea (YS) is an epicontinental sea framed by the densely populated mainland of China and the Korean peninsula. Human activities over the last decades resulted in heavily increasing discharge of reactive nitrogen into the YS, which created n

Externí odkaz: https://doaj.org/article/42bce8f8daf6414e982da725d560df5f

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Akademický článek

Oxygen and Nutrient Trapping in the Southern Benguela Upwelling System

Autor: Tim Rixen, Niko Lahajnar, Tarron Lamont, Rolf Koppelmann, Bettina Martin, Justus E. E. van Beusekom, Claire Siddiqui, Keshnee Pillay, Luisa Meiritz

Publikováno v: Frontiers in Marine Science, Vol 8 (2021)

The Benguela Upwelling System in the southeast Atlantic Ocean is of crucial socio-economic importance due to its high productivity. However, predicting its response to global change and understanding past changes are still great challenges. Here, we

Externí odkaz: https://doaj.org/article/a7adcf19ffe544b1a55a2b93c99c4be9

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