different habitats (e.g.: in the water column and on the bottom). Ocean warming, ocean acidification and decreasing oxygen in the world's oceans in the wake of rapid climate change pose a challenge to all life

lower temperature will lead to reduced performance while ocean acidification may be negligible most studies found no effect of ocean acidification on cold- water corals; though less abundant in areas 1 T: [...] farms Co-PI: Marlene Wall, Claudio Richter, Ute Hentschel ©U. Pörschmann ST 6.4 Use and misuse of the ocean: Consequences for marine ecosystems Lozano-Muñoz et al. 2021 An integrated holobiont view on cold-water

ng of colonisation and expatriation processes. Projects BioAcid II: Biological Impacts of Ocean Acidification ( www.bioacid.de ) Cleopatra: Climate effects on planktonic food quality and trophic transfer [...] physiological responses of dominant species to climate chance to predict their role in the future Arctic Ocean. Feeding biology and trophic interactions of key species Who feeds who“ is one of the major factors [...] ( www.mare-incognitum.no/index.php/cleopatra-ii ) Transdrift: The transpolar system of the Arctic Ocean: ( www.transdrift.info ) Fram: Frontiers in Arctic Monitoring Members of the working group PD. Dr

2012, she received her PhD. from the University of Bremen for investigating the impacts of ocean acidification on marine macroalgae. After finishing her PhD, she participated in two diving expeditions to

CO 2 . A smaller ocean carbon sink can also be the outcome when climate changes affect major ocean currents, or when, due to changes in the marine environment (warming, acidification, nutrient and light [...] warming ocean simply can’t absorb as much as a cold one. In addition, the constant absorption of carbon dioxide affects the chemical balance of seawater. This phenomenon, referred to as ocean acidification [...] environmental scientist Dr. Judith, jpg | 14 MB Media Dialogue & Lectures Lectures | 06.11.2019 #Oceans4future? The ocean in the Global Carbon Budget Helmholtz Horizons Policy advice since 2018 Global Carbon Budget

Over the past 200 years, our planet’s oceans have absorbed more than a quarter of all anthropogenic carbon dioxide from the atmosphere. As a result, their acidity has increased by nearly 30 percent their [...] recently demonstrated. If this comes to pass, it could have far-reaching consequences for life in the ocean, as they report in the journal Nature.

survivability of marine organisms. In this context, Pörtner and his team inves- tigate how ocean warming, ocean acidification and the increasing lack of oxygen are affecting vital biochemical processes in marine [...] years and is now one of the world’s leading experts on the impact of climate change on life in the ocean. His scientific career began in Münster and Düsseldorf, where he studied biology and wrote his di [...] Assessment Report. He was jointly responsible for the IPCC’s three special reports on 1.5 °C, Land and Ocean, and the Cryosphere, and served as Co-Chair of the IPCC’s afore- mentioned Working Group II for the

already impacting the modern ocean. To recognize changes and predict the future ocean, ocean color (OC) remote sensing aims at quantifying and monitoring optically active oceanic constituents such as phytoplankton [...] 2.2 Ocean color remote sensing 2.2 Ocean color remote sensing Ocean color (OC) remote sensing (Mobley, 1994; Mobley et al., 2021) refers to the dis- cipline that infers information on the ocean from optical [...] c CO2 was taken up by the ocean (Friedlingstein et al., 2019). As a consequence, the ocean is warming, sea levels are rising, sea ice concentrations are declining, and ocean acidity is enhancing (IPCC

CO2 with the atmosphere, namely the ocean and the terrestrial biosphere. According to Levin et al. (2010: Figure 7) the largest net uptake of bomb 14C by the world oceans occurred in the 1970s and was about [...] the atmosphere and surface waters in the circum Antarctic ocean (Graven et al. 2012). While the difference between atmospheric and surface ocean Δ 14C-CO2 in the late 1980 and 1990s was still about 200– [...] conducted in both hemispheres, documenting the so-called nuclear “bomb spike” and its transfer into the oceans and the terrestrial biosphere, the two compartments permanently exchanging carbon with the atmosphere

to the impacts of climate change on ocean life, and from 2015 to 2017 worked on a major project funded by the federal govern- ment to investigate ocean acidification (BioAcid). When this project ended, [...] concerning the ecology and composition of communities living on the floor of the North Sea and Southern Ocean, conducted by the Comparative Ecosystem Research Section of the Alfred Wegener Institute (AWI) in