Web Access Research Portal

Researcher: Bach, LT (Dr Lennart Bach)

Fields of Research

Biological oceanography
Global change biology
Carbon sequestration science
Chemical oceanography
Physical oceanography
Environmental management
Ecological physiology
Environmental assessment and monitoring
Phycology (incl. marine grasses)
Animal immunology
Inorganic geochemistry
Biogeography and phylogeography
Behavioural ecology

Research Objectives

Expanding knowledge in the earth sciences
Atmospheric composition (incl. greenhouse gas inventory)
Climate change adaptation measures (excl. ecosystem)
Climate change mitigation strategies
Assessment and management of pelagic marine ecosystems
Oceanic processes (excl. in the Antarctic and Southern Ocean)
Marine biodiversity
Understanding climate change
Ecosystem adaptation to climate change
Effects of climate change on Antarctic and sub-Antarctic environments (excl. social impacts)
Global effects of climate change (excl. Australia, New Zealand, Antarctica and the South Pacific) (excl. social impacts)
Management of greenhouse gas emissions from plant production
Climate adaptive plants
Assessment and management of coastal and estuarine ecosystems
Mitigation of climate change
Expanding knowledge in the environmental sciences
Expanding knowledge in the biological sciences
Environmentally sustainable mineral resource activities
Clinical health
Climate change models
Fisheries - aquaculture
Management of greenhouse gas emissions from manufacturing activities

Career Best Publications

CO2 removal with enhanced weathering and ocean alkalinity enhancement: potential risks and co-benefits for marine pelagic ecosystems; Frontiers in Climate
Enhanced silica export in a future ocean triggers global diatom decline; Nature
Seeking natural analogs to fast-forward the assessment of marine CO2 removal; Proceedings of the National Academy of Sciences of the United States of America
Testing the climate intervention potential of ocean afforestation using the Great Atlantic Sargassum Belt; Nature Communications

Research Publications

In situ camera observations reveal major role of zooplankton in modulating marine snow formation during an upwelling-induced plankton bloom; Progress in Oceanography
A unifying concept of coccolithophore sensitivity to changing carbonate chemistry embedded in an ecological framework; Progress in Oceanography
An approach for particle sinking velocity measurements in the 3–400 μm size range and considerations on the effect of temperature on sinking rates; Marine Biology
Analyzing the impacts of elevated-CO2 levels on the development of a subtropical zooplankton community during oligotrophic conditions and simulated upwelling; Frontiers in Marine Science
Application of stable carbon isotopes in a subtropical North Atlantic mesocosm study: a new approach to assess CO2 effects on the marine carbon cycle; Frontiers in Marine Science
Assessing the influence of ocean alkalinity enhancement on a coastal phytoplankton community; Biogeosciences
Assessing the potential of amino acid 13C patterns as a carbon source tracer in marine sediments: effects of algal growth conditions and sedimentary diagenesis; Biogeosciences
Between- and within-population variations in thermal reaction norms of the coccolithophore Emiliania huxleyi; Limnology and Oceanography
Can morphological features of coccolithophores serve as a reliable proxy to reconstruct environmental conditions of the past?; Climate of the Past
Changing carbon-to-nitrogen ratios of organic-matter export under ocean acidification; Nature Climate Change
Ciliate and mesozooplankton community response to increasing CO2 levels in the Baltic Sea: insights from a large-scale mesocosm experiment; Biogeosciences
CO2 effects on diatoms: a synthesis of more than a decade of ocean acidification experiments with natural communities; Ocean Science
CO2 removal with enhanced weathering and ocean alkalinity enhancement: potential risks and co-benefits for marine pelagic ecosystems; Frontiers in Climate
Competitive fitness of a predominant pelagic calcifier impaired by ocean acidification; Nature Geoscience
Concentrations and uptake of dissolved organic phosphorus compounds in the Baltic Sea; Frontiers in Marine Science
Dissecting the impact of CO2 and pH on the mechanisms of photosynthesis and calcification in the coccolithophore Emiliania huxleyi; New Phytologist
Distinguishing between the effects of ocean acidification and ocean carbonation in the coccolithophore Emiliania huxleyi; Limnology and Oceanography
Editorial: the role of ocean-based negative emission technologies for climate mitigation; Frontiers in Climate
Effect of elevated CO2 on organic matter pools and fluxes in a summer Baltic Sea plankton community; Biogeosciences
Effect of intensity and mode of artificial upwelling on particle flux and carbon export; Frontiers in Marine Science
Effect of ocean acidification and elevated fCO2 on trace gas production by a Baltic Sea summer phytoplankton community; Biogeosciences
Effects of CO2 perturbation on phosphorus pool sizes and uptake in a mesocosm experiment during a low productive summer season in the northern Baltic Sea; Biogeosciences
Effects of elevated CO2 on a natural diatom community in the subtropical NE Atlantic; Frontiers in Marine Science
Effects of ocean acidification on primary production in a coastal North Sea phytoplankton community; PLoS ONE
Enhanced silica export in a future ocean triggers global diatom decline; Nature
Enhanced transfer of organic matter to higher trophic levels caused by ocean acidification and its implications for export production: a mass balance approach; PLoS ONE
Experiment design and bacterial abundance control extracellular H2O2 concentrations during four series of mesocosm experiments; Biogeosciences
Extreme levels of ocean acidification restructure the plankton community and biogeochemistry of a temperate coastal ecosystem: a mesocosm study; Frontiers in Marine Science
Factors controlling plankton community production, export flux, and particulate matter stoichiometry in the coastal upwelling system off Peru; Biogeosciences
Food web changes under ocean acidification promote herring larvae survival; Nature Ecology and Evolution
Forensic carbon accounting: assessing the role of seaweeds for carbon sequestration; Journal of Phycology
High CO2 under nutrient fertilization increases primary production and biomass in subtropical phytoplankton communities: a mesocosm approach; Frontiers in Marine Science
Highly variable iron content modulates iceberg-ocean fertilisation and potential carbon export; Nature Communications
Impact of increasing carbon dioxide on dinitrogen and carbon fixation rates under oligotrophic conditions and simulated upwelling; Limnology and Oceanography
Impact of trace metal concentrations on coccolithophore growth and morphology: laboratory simulations of Cretaceous stress; Biogeosciences
Influence of changing carbonate chemistry on morphology and weight of coccoliths formed by Emiliania huxleyi; Biogeosciences
Influence of ocean acidification and deep water upwelling on oligotrophic plankton communities in the subtropical North Atlantic: insights from an in situ mesocosm study; Frontiers in Marine Science
Influence of ocean acidification on a natural winter-to-summer plankton succession: first insights from a long-term mesocosm study draw attention to periods of low nutrient concentrations; PLoS ONE
Influence of ocean acidification on plankton community structure during a winter-to-summer succession: an imaging approach indicates that copepods can benefit from elevated CO2 via indirect food web effects; PLoS ONE
Influence of plankton community structure on the sinking velocity of marine aggregates; Global Biogeochemical Cycles
Influence of the calcium carbonate shell of coccolithophores on ingestion and growth of a dinoflagellate predator; Frontiers in Marine Science
Investigating the effect of nickel concentration on phytoplankton growth to assess potential side-effects of ocean alkalinity enhancement; Biogeosciences
Localizing the Southern Ocean biogeochemical divide; Geophysical Research Letters
Low CO2 sensitivity of microzooplankton communities in the Gullmar Fjord, Skagerrak: evidence from a long-term mesocosm study; PLoS ONE
Metabolic responses of subtropical microplankton after a simulated deep-water upwelling event suggest a possible dominance of mixotrophy under increasing CO2 levels; Frontiers in Marine Science
Negligible effects of ocean acidification on Eurytemora affinis (Copepoda) offspring production; Biogeosciences
Niche construction by non-diazotrophs for N2 fixers in the eastern tropical North Atlantic Ocean; Geophysical Research Letters
Nitrogen loss processes in response to upwelling in a Peruvian coastal setting dominated by denitrification - a mesocosm approach; Biogeosciences
No observed effect of ocean acidification on nitrogen biogeochemistry in a summer Baltic Sea plankton community; Biogeosciences
Ocean acidification effects on mesozooplankton community development: results from a long-term mesocosm experiment; PLoS ONE
Ocean acidification impacts bacteria–phytoplankton coupling at low-nutrient conditions; Biogeosciences
Ocean acidification increases domoic acid contents during a spring to summer succession of coastal phytoplankton; Harmful Algae
Ocean acidification induces distinct metabolic responses in subtropical zooplankton under oligotrophic conditions and after simulated upwelling; The Science of The Total Environment
Ocean acidification-induced restructuring of the plankton food web can influence the degradation of sinking particles; Frontiers in Marine Science
Ocean alkalinity enhancement - avoiding runaway CaCO3 precipitation during quick and hydrated lime dissolution; Biogeosciences
Phytoplankton blooms at increasing levels of atmospheric carbon dioxide: experimental evidence for negative effects on prymnesiophytes and positive on small picoeukaryotes; Frontiers in Marine Science
Plankton responses to ocean acidification: the role of nutrient limitation; Progress in Oceanography
Population-specific responses in physiological rates of Emiliania huxleyi to a broad CO2 range; Biogeosciences
Potential negative effects of ocean afforestation on offshore ecosystems; Nature Ecology and Evolution
Processes that contribute to decreased dimethyl sulfide production in response to ocean acidification in subtropical waters; Frontiers in Marine Science
Quantifying the time lag between organic matter production and export in the surface ocean: implications for estimates of export efficiency; Geophysical Research Letters
Quantitative and mechanistic understanding of the open ocean carbonate pump - perspectives for remote sensing and autonomous in situ observation; Earth Science Reviews: The International Geological Journal Bridging The Gap Between Research Articles and Text Books
Rapid evolution of highly variable competitive abilities in a key phytoplankton species; Nature Ecology and Evolution
Reconsidering the role of carbonate ion concentration in calcification by marine organisms; Biogeosciences
Seeking natural analogs to fast-forward the assessment of marine CO2 removal; Proceedings of the National Academy of Sciences of the United States of America
Shift towards larger diatoms in a natural phytoplankton assemblage under combined high-CO2 and warming conditions; Journal of Plankton Research
Simulated ocean acidification reveals winners and losers in coastal phytoplankton; PLoS ONE
Technical note: sampling and processing of mesocosm sediment trap material for quantitative biogeochemical analysis; Biogeosciences
Temperature modulates coccolithophorid sensitivity of growth, photosynthesis and calcification to increasing seawater pCO2; PLoS ONE
Temporal dynamics of surface ocean carbonate chemistry in response to natural and simulated upwelling events during the 2017 coastal El Nino near Callao, Peru; Biogeosciences
Testing the climate intervention potential of ocean afforestation using the Great Atlantic Sargassum Belt; Nature Communications
The calcium carbonate shell of Emiliania huxleyi provides limited protection against viral infection; Frontiers in Marine Science
The influence of plankton community structure on sinking velocity and remineralization rate of marine aggregates; Global Biogeochemical Cycles
The modulating effect of light intensity on the response of the coccolithophore Gephyrocapsa oceanica to ocean acidification; Limnology and Oceanography
The ongoing need for rates: can physiology and omics come together to co-design the measurements needed to understand complex ocean biogeochemistry?; Journal of Plankton Research
The role of coccoliths in protecting Emiliania huxleyi against stressful light and UV radiation; Biogeosciences
The viscosity effect on marine particle flux: a climate relevant feedback mechanism; Global Biogeochemical Cycles
Toxic algal bloom induced by ocean acidification disrupts the pelagic food web; Nature Climate Change
Universal response pattern of phytoplankton growth rates to increasing CO2; New Phytologist
Why marine phytoplankton calcify

Research Projects

Aligning ocean alkalinity for sustainable, safe and verifiable long-term CO2 removal; Additional Ventures (AdVis)
Enhanced Weathering - a sustainable tool for CO2 Removal?; Australian Research Council (ARC)
Testing the White Ocean hypothesis to inform Ocean Alkalinity Enhancement

Research Candidate Supervision