A5001262394- Marine and coastal ecosystems
- Marine Biology and Ecology Research
- Isotope Analysis in Ecology
- Ocean Acidification Effects and Responses
- Marine Bivalve and Aquaculture Studies
- Marine and fisheries research
- Aquatic Ecosystems and Phytoplankton Dynamics
- Aquaculture Nutrition and Growth
- Marine Invertebrate Physiology and Ecology
- Marine and environmental studies
- Microbial Community Ecology and Physiology
- Fish Ecology and Management Studies
- Marine and coastal plant biology
- Geology and Paleoclimatology Research
- Diatoms and Algae Research
- Aquatic and Environmental Studies
- Methane Hydrates and Related Phenomena
- Arctic and Antarctic ice dynamics
- Aquatic Invertebrate Ecology and Behavior
- Marine Ecology and Invasive Species
- Water Quality Monitoring and Analysis
- Oceanographic and Atmospheric Processes
- Crustacean biology and ecology
- Evolutionary Game Theory and Cooperation
- Marine Toxins and Detection Methods
Norwegian University of Science and Technology
2016-2025
Universität Hamburg
2023-2025
Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung
2009-2019
GEOMAR Helmholtz Centre for Ocean Research Kiel
2003-2009
Max Planck Institute for Evolutionary Biology
2003-2008
Max Planck Society
2003-2006
Kiel University
2006
Max Planck Institute for Marine Microbiology
2003
Abstract Aquatic ecologists face challenges in identifying the general rules of functioning ecosystems. A common framework, including freshwater, marine, benthic, and pelagic ecologists, is needed to bridge communication gaps foster knowledge sharing. This framework should transcend local specificities taxonomy order provide a ground shareable tools address scientific challenges. Here, we advocate use functional trait‐based approaches (FTBAs) for aquatic propose concrete paths go forward....
We investigated whether nutrient limitations of primary producers act upward through food webs only in terms density effects or if there is a second pathway for limitation signals channelled to higher trophic levels. used tritrophic chains assess the nutrient‐limited phytoplankters (the cryptophyte Rhodomonas salina ) on herbivorous zooplankters calanoid copepod Acartia tonsa and finally zooplanktivores (larval herring Clupea harengus living herbivores. The producers’ quality had significant...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 251:27-36 (2003) - doi:10.3354/meps251027 Rapid response of a deep-sea benthic community POM enrichment: an in situ experimental study U. Witte1,*, N. Aberle1,2, M. Sand1, F. Wenzhöfer1,3 1Max Planck Institute for Microbiology, Celsiusstr. 1, 28359 Bremen, Germany 2Present address: Max Limnology, PO Box 165,...
Abstract It is a well accepted fact that nutrient limitation of plants affects the growth and survival herbivores, generally leading to lower performance herbivores feeding on stressed plants. The effect plants' growing conditions predatory organisms, one trophic level up, has been much less studied, there general consensus such effects would be small as often show relatively strong homeostasis with respect their content. Here, we challenge this view, from several examples despite buffer...
The oceans’ uptake of anthropogenic carbon dioxide (CO 2 ) decreases seawater pH and alters the inorganic speciation – summarized in term ocean acidification (OA). Already today, coastal regions experience episodic events during which surface layer drops below values projected for at end century. Future OA is expected to further enhance intensity these extreme events. To evaluate influence such regions, we deployed eight pelagic mesocosms 53 days Raunefjord, Norway, enclosed 56–61 m 3 local...
Abstract. Impacts of ocean acidification (OA) on marine biota have been observed in a wide range systems. We used mesocosm approach to study the response high Arctic coastal microzooplankton community during post-bloom period Kongsfjorden (Svalbard) direct and indirect effects pCO2/low pH. found almost no OA composition diversity. Both relative shares ciliates heterotrophic dinoflagellates as well taxonomic remained unaffected by changes pCO2/pH. Although different pCO2 treatments affected...
Abstract Although jellyfish are an important component of coastal marine communities, their public perception is often tainted by proclivity for aggregating in vast numbers, known as blooms. Jellyfish blooms occur worldwide and associated with major economic ramifications, particularly throughout the fisheries, aquaculture, tourism sectors. Forecasting critical order to manage mitigate ecological impacts, but complex life cycles cryptic stages exhibited most species largely precludes...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 251:37-47 (2003) - doi:10.3354/meps251037 Deep-sea macrofauna exposed a simulated sedimentation event in abyssal NE Atlantic: situ pulse-chase experiments using 13C-labelled phytodetritus N. Aberle1,2,*, U. Witte1 1Max Planck Institute for Microbiology, Celsiusstr. 1, 28359 Bremen, Germany 2Present address:...
AB Aquatic Biology Contact the journal Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 7:185-197 (2009) - DOI: https://doi.org/10.3354/ab00191 Influence of nutrients, temperature, light and salinity on occurrence Paralia sulcata at Helgoland Roads, North Sea Christina Gebühr1,*, Karen H. Wiltshire1, Nicole Aberle1, Justus E. van Beusekom2, Gunnar Gerdts1 1Biologische Anstalt Helgoland, Alfred Wegener Institute for Polar...
Jellyfish blooms occur resulting from redistribution/aggregation events or peaks in population growth. Such can affect ecosystem structure and stability due to the role of jellyfish as top predators fish larvae eggs competitors preying on same zooplankton resources. The factors leading bloom formation have received considerable attention past while causing collapse are less studied so far. However, a better understanding dynamics is crucial allow estimates vertical carbon transport, turnover...
Today, deep-sea research is expensive, largely limiting this science to countries and institutes with the greatest resourcing. Such efforts have been critical expanding our knowledge of deep, yet we still know too little make time-sensitive decisions about resource use, protection responsible interactions deep.We need more people doing research, do it efficiently cost-effectively. Our ocean, preserve planet well-being coastal communities depend on it. How this? We believe one answers lies...
ABSTRACT Aim This study sets out to understand the variability in larval traits of dispersive life stages a famous invader, European shore crab Carcinus maenas , its native distribution range. Location North East Atlantic coast from Norwegian Arctic southern limit C. Southern Spain. Taxon (Crustacea, Decapoda). Methods We quantified latitudinal patterns body mass, elemental composition (C and N content), thermal tolerance first stage. collected crabs four populations spanning 25° latitude...
Summary 1. Tracer experiments with two diatoms labelled 13 C ( Nitzschia palea ) and 15 N Fragilaria crotonensis ), were conducted to investigate feeding selectivity interspecific competition between the grazers Asellus aquaticus (Isopoda, Crustacea) Potamopyrgus antipodarum (Hydrobiidae, Gastropoda). Conventional methods, such as cell counts estimated biovolume, used first detect preferences within different grazer treatments. 2. The results revealed a significant decline in algal biovolume...