Web Access Research Portal

Researcher: Bach, LT (Dr Lennart Bach)

Fields of Research

Biological oceanography
Global change biology
Chemical oceanography
Environmental management
Animal immunology
Physical oceanography
Biogeography and phylogeography
Behavioural ecology

Research Objectives

Expanding knowledge in the earth sciences
Climate change adaptation measures (excl. ecosystem)
Climate change mitigation strategies
Ecosystem adaptation to climate change
Effects of climate change on Antarctic and sub-Antarctic environments (excl. social impacts)
Marine biodiversity
Oceanic processes (excl. in the Antarctic and Southern Ocean)
Assessment and management of coastal and estuarine ecosystems
Understanding climate change
Atmospheric composition (incl. greenhouse gas inventory)
Expanding knowledge in the biological sciences
Assessment and management of pelagic marine ecosystems
Clinical health
Fisheries - aquaculture
Climate change models
Management of greenhouse gas emissions from manufacturing activities

Career Best Publications

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 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
Effect of elevated CO2 on organic matter pools and fluxes in a summer Baltic Sea plankton community; Biogeosciences
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 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
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 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
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
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-induced restructuring of the plankton food web can influence the degradation of sinking particles; Frontiers in Marine Science
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
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
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
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
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 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

Enhanced Weathering - a sustainable tool for CO2 Removal?; Australian Research Council (ARC)

Research Candidate Supervision