A5090678968- Marine Biology and Ecology Research
- Ocean Acidification Effects and Responses
- Marine Bivalve and Aquaculture Studies
- Marine and coastal plant biology
- Marine Biology and Environmental Chemistry
- Aquaculture Nutrition and Growth
- Crustacean biology and ecology
- Coral and Marine Ecosystems Studies
- Marine and fisheries research
- Physiological and biochemical adaptations
- Marine and environmental studies
- Parasite Biology and Host Interactions
- Arctic and Antarctic ice dynamics
- Coastal wetland ecosystem dynamics
- Vibrio bacteria research studies
- Isotope Analysis in Ecology
- Parasites and Host Interactions
- Aquaculture disease management and microbiota
- Food Industry and Aquatic Biology
- Environmental Toxicology and Ecotoxicology
- Cephalopods and Marine Biology
- Microbial Community Ecology and Physiology
- Global Energy and Sustainability Research
- Microplastics and Plastic Pollution
- Marine Ecology and Invasive Species
Åbo Akademi University
2020-2025
GEOMAR Helmholtz Centre for Ocean Research Kiel
2013-2023
University of Gothenburg
2013-2018
GEOMAR Technologie GmbH - GTG
2013
University of Rostock
2008
Abstract Ocean acidification is expected to decrease calcification rates of bivalves. Nevertheless, in many coastal areas high p CO 2 variability encountered already today. K iel F jord ( W estern B altic S ea) a brackish (12–20 g kg −1 ) and enriched habitat, but the blue mussel M ytilus edulis dominates benthic community. In coupled field laboratory study we examined annual this habitat combined effects elevated food availability on juvenile . growth calcification. experiment, were found...
Abstract Ocean acidification (OA) is generally assumed to negatively impact calcification rates of marine organisms. At a local scale however, biological activity macrophytes may generate pH fluctuations with change that are orders magnitude larger than the long‐term trend predicted for open ocean. These in turn benthic calcifiers vicinity. Combining laboratory, mesocosm and field studies, such interactions between OA, brown alga Fucus vesiculosus , sea grass Zostera marina blue mussel...
Abstract Energy availability and local adaptation are major components in mediating the effects of ocean acidification ( OA ) on marine species. In a long‐term study, we investigated food elevated p CO 2 (ca. 400, 1000 3000 μatm) growth newly settled Amphibalanus (Balanus) improvisus to reproduction, their offspring. We also compared two different populations, which were presumed differ sensitivity due differing habitat conditions: Kiel Fjord, Germany (Western Baltic Sea) with naturally...
Climate change will not only shift environmental means but also increase the intensity of extreme events, exerting additional stress on ecosystems. While field observations ecological consequences heat waves are emerging, experimental evidence is rare, and lacking at community level. Using a novel "near-natural" outdoor mesocosms approach, this study tested whether marine summer have detrimental for macrofauna temperate coastal community, sequential provoke an or decrease sensitivity to...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 459:85-98 (2012) - DOI: https://doi.org/10.3354/meps09697 Sour times: seawater acidification effects on growth, feeding behaviour and acid–base status of Asterias rubens Carcinus maenas Yasmin S. Appelhans*, Jörn Thomsen, Christian Pansch, Frank Melzner, Martin Wahl Ecology, Helmholtz Centre for Ocean...
Abstract Due to climate change the pathogenic bacterium Vibrio vulnificus proliferates along brackish coastlines, posing risks public health, tourism, and aquaculture. Here we investigated previously suggested regulation measures reduce prevalence of V. , locally through seagrass regionally reduction eutrophication consequential formation algal blooms. Field samples collected in summer 2021 covered salinity gradients Baltic Sea, one largest areas worldwide. Physico-, biological-...
Abstract Climate change will shift mean environmental conditions and also increase the frequency intensity of extreme events, exerting additional stress on ecosystems. While field observations extremes are emerging, experimental evidence their biological consequences is rare. Here, we introduce a mesocosm system that was developed to study effects variability multiple drivers (temperature, salinity, pH, light) single species communities at various temporal scales (diurnal ‐ seasonal): Kiel...
Abstract The relevance of considering environmental variability for understanding and predicting biological responses to changes has resulted in a recent surge variability‐focused ecological research. However, integration findings that emerge across studies identification remaining knowledge gaps aquatic ecosystems remain critical. Here, we address these aspects by: (1) summarizing relevant terms research including the components (characteristics) key interactions when multiple factors; (2)...
Abstract Background Zostera marina is an important ecosystem engineer influencing shallow water environments and possibly shaping the microbiota in surrounding sediments water. Z. typically found marine systems, but it can also proliferate under brackish conditions. Changes salinity generally have a strong impact on biota, especially at salty divide between 6 9. To better understand of interaction sediment microbiota, we investigated effects meadows across range 6–15 Baltic Sea during summer...
Abstract Marine heatwaves are increasing globally in intensity and duration. To investigate the potential consequences for coastal ecosystems, effects of short‐term heat stress must be better understood. This study examined eco‐physiological responses two common intertidal bivalves, Cerastoderma edule Macoma balthica , to different heatwave intensities a mesocosm experiment under near‐natural environmental conditions. Single‐species assemblages were exposed 15‐d either +2.8°C (mild heatwave)...
In a warming ocean, temperature variability imposes intensified peak stress, but offers periods of stress release. While field observations on organismic responses to heatwaves are emerging, experimental evidence is rare and almost lacking for shorter-scale environmental variability. For two major invertebrate predators, we simulated sinusoidal (±3 °C) around todays' warm summer temperatures future scenario (+4 over months, based high-resolution 15-year data that allowed implementation...
Abstract Marine heatwaves have been observed worldwide and are expected to increase in both frequency intensity due climate change. Such events may cause ecosystem reconfigurations arising from species range contraction or redistribution, with ecological, economic social implications. Macrophytes such as the brown seaweed Fucus vesiculosus seagrass Zostera marina foundation many coastal ecosystems of temperate northern hemisphere. Hence, their response extreme can potentially determine fate...
Abstract Predicting the implications of ongoing ocean climate warming demands a better understanding how short‐term thermal variability impacts marine ectotherms, particularly at beyond‐optimal average conditions during summer heatwaves. Using globally important model species, blue mussel Mytilus , in 5‐week‐long experiment, we (a) assessed growth performance traits under 12 scenarios, consisting four averages (18.5, 21, 23.5 and 26℃) imposed as constant or daily fluctuating regimes with...
Climate change increases the frequency and intensifies magnitude duration of extreme events in sea, particularly so coastal habitats. However, interplay multiple extremes consequences for species ecosystems remain unknown. We experimentally tested impacts summer heatwaves differing intensities durations, a subsequent upwelling event on temperate keystone predator, starfish Asterias rubens. recorded mussel consumption throughout experiment assessed activity growth at strategically chosen time...
Background The Vibrio genus comprises several bacterial species present in the Baltic Sea region (BSR), which are known to cause human infections. Aim To provide a comprehensive retrospective analysis of -induced infections BSR from 1994 2021, focusing on ‘big four’ – V. alginolyticus , cholerae non-O1/O139, parahaemolyticus and vulnificus eight European countries (Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Poland Sweden) bordering Sea. Methods Our includes data infections,...
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MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 509:227-239 (2014) - DOI: https://doi.org/10.3354/meps10884 Juvenile sea stars exposed acidification decrease feeding and growth with no acclimation potential Yasmin S. Appelhans1,*,**, Jörn Thomsen1,*,**, Sebastian Opitz1,2, Christian Pansch1,3, Frank Melzner1, Martin Wahl1 1Helmholtz Centre for Ocean...
Abstract While it is well known that severe marine summer heatwaves can cause acute and dramatic die‐offs of seagrass meadows, the effect trans‐seasonal warming winter/spring are yet poorly understood. This study simulated a 9‐months scenario on common Zostera marina from winter into summer, using outdoor mesocosms, which provided near‐natural conditions. The relevance natural temperature pattern, as 3.6°C warming, their implications were further discussed in context 22‐yr time series...
Abstract Pansch, C., Schlegel, P., and Havenhand, J. 2013. Larval development of the barnacle Amphibalanus improvisus responds variably but robustly to near-future ocean acidification. – ICES Journal Marine Science, 70: 805–811. Increasing atmospheric CO2 decreases seawater pH in a phenomenon known as In two separate experiments we found that larval (Balanus) was not significantly affected by level reduced has been projected for next 150 years. After 3 6 days incubation, no consistent...