A5006346469- Marine Invertebrate Physiology and Ecology
- Marine and environmental studies
- Marine Ecology and Invasive Species
- Aquatic Ecosystems and Phytoplankton Dynamics
- Isotope Analysis in Ecology
- Microplastics and Plastic Pollution
- Marine animal studies overview
- Identification and Quantification in Food
- Evolutionary Game Theory and Cooperation
- Marine Biology and Ecology Research
- Marine and coastal ecosystems
- Marine and coastal plant biology
- Fish Ecology and Management Studies
- Marine Toxins and Detection Methods
- Microbial Community Ecology and Physiology
- Yersinia bacterium, plague, ectoparasites research
- Coral and Marine Ecosystems Studies
- Coastal and Marine Management
- Botany and Plant Ecology Studies
- Cephalopods and Marine Biology
- Recycling and Waste Management Techniques
- Plant and animal studies
- Parasite Biology and Host Interactions
- Protist diversity and phylogeny
- Water Quality Monitoring and Analysis
University of Southern Denmark
2018-2024
GEOMAR Helmholtz Centre for Ocean Research Kiel
2011-2021
The invasive ctenophore Mnemiopsis leidyi was first recorded in the Kiel Bight (western Baltic Sea) on 17 October 2006 during a regular weekly sampling program. M. abundance gradually increased from 29.5±12.7 ind.m-3 mid-October to 92.3±22.4 late November 2006. occurrence of Sea is great concern as this invader has caused negative impacts southern seas Europe.
Abstract Marine invasions are taking place at an increasing rate. When occurring in blooms, zooplanktivorous comb jellies of the genus Mnemiopsis able to cause pelagic regime shifts coastal areas and may collapse commercially important fish populations. Using microsatellites, developed for first time phylum Ctenophora, we show that leidyi has colonized Eurasia from two source regions. Our preliminary data set included four sites within putative region (US East Coast Gulf Mexico) 10 invaded...
Invasions of freshwater habitats by marine and brackish species have become more frequent in recent years with many those originating from the Ponto-Caspian region. Populations successfully established North Baltic Seas their adjoining rivers, as well Great Lakes-St. Lawrence River To determine if taxa readily acclimatize to colonize diverse salinity than other regions, we conducted laboratory experiments on 22 populations eight gammarid native Ponto-Caspian, Northern European regions. In...
Abstract Agricultural production is predicted to double during the next century. To ensure food security in response global population growth a challenge and will require strategies that mitigate associated environmental damage ways consistent with United Nation’s Sustainable Development Goals. One possible approach utilize organic fertilizers from marine sources improve soil structure by enhancing activities of organisms restoring essential plant nutrients soil. Here we identify...
Abstract Aim Invasive species are of increasing global concern. Nevertheless, the mechanisms driving further distribution after initial establishment non‐native remain largely unresolved, especially in marine systems. Ocean currents can be a major driver governing range occupancy, but this has not been accounted for most invasion ecology studies so far. We investigate how well areas interconnected to later occupancy regions test potential role ocean secondary spread dynamics order infer...
We analyzed the seasonal variations of ctenophore Mnemiopsis leidyi weekly collected since its first record in western Baltic Sea October 2006. The distribution pattern together with dynamics and population outbreaks late summer 2007 indicate recent successfully establishment M. this area. Seasonal changes showed two periods high reproductive activity characterized by a structure dominated small size classes, followed an increase larger ones. These results further revealed that bulk remains...
The sudden occurrence of the ctenophore Mnemiopsis leidyi has been reported recently from different regions Baltic Sea and it suggested that species invaded whole basin. Here we provide first set quantitative data seasonal diet composition life history traits M. its predatory role in pelagic ecosystem Western Sea. size structure appeared to be dominated by small classes only a few adults were as large those native region other areas. We show high preference for small-sized slow swimming...
Abstract Gelatinous zooplankton can be present in high biomass and taxonomic diversity planktonic oceanic food webs, yet the trophic structuring importance of this “jelly web” remain incompletely understood. To address knowledge gap, we provide a holistic characterization jelly web eastern tropical Atlantic, based on δ 13 C 15 N stable isotope analysis unique gelatinous sample set. The covered most isotopic niche space entire web, spanning > 3 levels, ranging from herbivores (e.g.,...
Despite the diversity and oftentimes large biomass of jellyfish in marine systems, their ecological role remains poorly understood. We here provide first systematic review studies on trophic ecology Baltic Sea (a regional system under strong multiple global anthropogenic pressures). In total, we identified 57 peer-reviewed publications, with notable taxonomic bias towards two species (Aurelia aurita; non-indigenous Mnemiopsis leidyi) spatial five areas (Bornholm Basin, Kiel Bight, Kertinge...
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 485:25-36 (2013) - DOI: https://doi.org/10.3354/meps10321 Population genetics of invasive ctenophore Mnemiopsis leidyi in Europe reveal source–sink dynamics and secondary dispersal Mediterranean Sea Sören Bolte1,*, Veronica Fuentes2, Holger Haslob3, Bastian Huwer4, Delphine Thibault-Botha5, Dror Angel6, Bella...
In the eastern tropical Atlantic, orangeback flying squid Sthenoteuthis pteropus (Steenstrup 1855) (Cephalopoda, Ommastrephidae) is a dominant species of epipelagic nekton community. This carnivore has short lifespan and one fastest-growing squids. this study, we characterise role S. in pelagic food web Atlantic by investigating its diet dynamics feeding habits throughout ontogeny migration. During three expeditions 2015, 129 specimens were caught hand jigging. Stomach content analyses (via...
A temporal change in the stable isotope (SI) composition of jellyfish Kiel Fjord, Western Baltic Sea, was documented by analyzing δ13C, δ15N and δ34S bell tissue Aurelia aurita Cyanea capillata period between June October 2011. strong significant all SI values A. found, including an increase ~3 ‰ a decrease ~4 sharp decline ~7 δ34S. While knowledge gaps ecology, particular lack reliable trophic enrichment factors, call for conservative interpretation our data, observed changes δ34S, as...
Jellyfish are often described as a nuisance species, but our understanding shifts to more ecosystem-based conceptions, they also recognized both important components of marine ecosystems and resource for humans. Here, we describe global jellyfish fisheries review production, fishing methods, applications based on the existing literature. We then focus future development European fishery current recent EU research initiatives. have been staple food in East Asia eons now show potential...
Jellyfish population play an important role in aquatic food chains, and many animals predate on this 'mostly water containing' organisms. However, what gelativores predators could gain from their prey is still poorly understood. This study provides insight into the nutritional value of moon jelly (Aurelia aurita) by means its fatty acid (FA) composition, while investigating seasonal variability differences between free-swimming life stages. A biweekly sampling was carried out a temperate...
Abstract The proliferation of invasive marine species is often explained by a lack predators and opportunistic life history traits. For the comb jelly Mnemiopsis leidyi , it has remained unclear how this now widely distributed able to overcome long periods low food availability, particularly in their northernmost exotic habitats Eurasia. Based on both field laboratory evidence, we show that adult jellies western Baltic Sea continue building up nutrient reserves after emptying prey through...