A5041127036- Microbial Community Ecology and Physiology
- Protist diversity and phylogeny
- Marine Biology and Ecology Research
- Cephalopods and Marine Biology
- Marine and coastal ecosystems
- Marine Ecology and Invasive Species
- Marine Toxins and Detection Methods
- Marine Invertebrate Physiology and Ecology
- Environmental DNA in Biodiversity Studies
- Plant-Microbe Interactions and Immunity
- Genomics and Phylogenetic Studies
- Evolution and Paleontology Studies
- Aquatic Invertebrate Ecology and Behavior
- Legume Nitrogen Fixing Symbiosis
- Marine and fisheries research
- Marine Bivalve and Aquaculture Studies
- Conservation Techniques and Studies
- Parasite Biology and Host Interactions
- Morphological variations and asymmetry
- Marine and environmental studies
- Sports Performance and Training
- Diatoms and Algae Research
- Marine Biology and Environmental Chemistry
- Leech Biology and Applications
- Subterranean biodiversity and taxonomy
UiT The Arctic University of Norway
2020-2025
Norsk Teknisk Museum
2024
Centre for Arctic Gas Hydrate, Environment and Climate
2022-2024
University of Copenhagen
2010-2021
Natural History Museum Aarhus
2011-2021
Geological Survey of Denmark and Greenland
2013
Natural History Museum of Denmark
2011
Abstract Elysia chlorotica , a sacoglossan sea slug found off the East Coast of United States, is well-known for its ability to sequester chloroplasts from algal prey and survive by photosynthesis up 12 months in absence food supply. Here we present draft genome assembly E. that was generated using hybrid strategy with Illumina short reads PacBio long reads. The comprised 9,989 scaffolds, total length 557 Mb scaffold N50 442 kb. BUSCO assessment indicated 93.3% expected metazoan genes were...
Microscopic algae have sex too, and it is an important aspect of their ecological success.
Abstract Flatworms in the family Otoplanidae Hallez, 1892, are ubiquitous inhabitants of swash zone marine sandy beaches worldwide. We present new insights into morphology and phylogenetic position otoplanid Itaspiella helgolandica (Meixner, 1938) based on specimens sampled northern Norway. While species was originally described from German coast, it has since been reported High Arctic as well Greenland, Canada Alaska, indicating that a circumpolar distribution. Apart these reports, I....
The longevity (lifespan) and growth rates of a given species provide the basis for estimating its contributions to secondary production energy flow in an ecosystem, guiding management decisions, determining recovery times after disturbances. For brittle stars, class echinoderms that dominate megabenthos various marine systems due their often large populations, including those on Arctic soft bottom shelves, information can be estimated through bands ossicles (arm bones). Here, we maximum life...
SUMMARY The phylogenetic position of Brachiopoda remains unsettled, and only few recent data on brachiopod organogenesis are currently available. In order to contribute questions concerning ontogeny evolution we investigated nervous muscle system development in the craniiform (inarticulate) Novocrania anomala . Larvae this species lecithotrophic have a bilobed body with three pairs dorsal setal bundles that emerge from posterior lobe. Fully developed larvae exhibit network setae pouch...
Different features can protect bacteria against protozoan grazing, for example large size, rapid movement, and production of secondary metabolites. Most papers dealing with these matters focus on bacteria. Here, we describe that affect their ability to grow secondary-metabolite-producing bacteria, examine whether different bacterial metabolites protozoa similarly. We investigated the growth nine soil six Pseudomonas strains, including four fluorescens DR54 CHA0, chlororaphis MA342 sp. DSS73,...
The Southern Ocean is one of the most productive ecosystems in world. It an area heavily dependent on marine primary production and serving as a feeding ground for numerous seabirds mammals. Therefore, phytoplankton composition presence toxic species are crucial importance. Fifteen monoclonal strains Pseudo-nitzschia subcurvata, diatom endemic to Ocean, were established, which characterized by morphological molecular data then analysed toxin content. neurotoxins domoic acid iso-domoic C...
Abstract Priapulids are marine, benthic ecdysozoan worms that feed using a distinctive toothed pharynx. While only handful of lineages have survived to the present day, Cambrian priapulid stem group left behind rich record articulated body fossils and characteristic trace in form burrows. Recently, fossil isolated cuticular elements including pharyngeal teeth has gained increased attention as means revealing cryptic taxa otherwise unknown among macrofossils. In this study, we focus on...
Abstract Ciliates represent an important trophic link between nanoplankton and mesoplankton. Many species acquire functional chloroplasts from photosynthetic prey, being thus mixotrophs. Little is known about which algae they exploit, of the relevance inorganic carbon assimilation to their metabolism. To get insights into these aspects, laboratory cultures three mixotrophic Strombidium spp. were established 35 algal tested as prey. The relative contributions ingestion photosynthesis total...
Despite significant methodological progress, Brachiopoda remains one of the lophotrochozoan phyla for which no recent ontogenetic data employing modern methodologies such as fluorescence labelling and confocal microscopy are available. This is particularly astonishing given ongoing controversy concerning its phylogenetic position. In order to contribute new morphogenetic evolutionary inferences, we describe herein ontogeny myoanatomy larvae adults rhynchonelliform brachiopods Argyrotheca...
Photosynthetic species of the genus Dinophysis are obligate mixotrophs with temporary plastids (kleptoplastids) that acquired from ciliate Mesodinium rubrum, which feeds on cryptophytes Teleaulax-Plagioselmis-Geminigera clade. A metabolomic study three-species food chain Dinophysis-Mesodinium-Teleaulax was carried out using mass spectrometric analysis extracts batch-cultured cells each level chain. The main goal to compare expression Galician strains acuminata and D. acuta were subjected...
A new kinorhynch species, Zelinkaderes yong sp. nov., is described from Korea.Zelinkaderes nov. coastal, sandy habitats in Korea by means of light and scanning electron microscopic techniques. The species characterized the presence cuspidate spines lateroventral positions on segments 2 9, ventrolateral segment 5, lateral accessory 8; flexible tiny acicular 2, more regular-sized 8, middorsal 4, 6, 11. Females furthermore have midlateral 10, whereas males crenulated this segment. absence...
Marine invertebrate habitats are experiencing warming, and oceanic carbon dioxide levels on the rise. These changes result in shifts species distributions. Monitoring understanding these provides vital information because each plays a unique ecological role, human utilization of marine is intrinsically linked to their geographic locations. Here, we examine distribution invertebrates Barents Sea since pre-1900. Using data from Global Biodiversity Information Facility, analyzed occurrences...
Kinorhynchs are ecdysozoan animals with a phylogenetic position close to priapulids and loriciferans. To understand the nature of segmentation within Kinorhyncha infer probable ancestry last common ancestor Ecdysozoa, musculature nervous system allomalorhagid kinorhynch Pycnophyes kielensis were investigated by use immunohistochemistry, confocal laser scanning microscopy, 3D reconstruction software. The body plan comprises 11 trunk segments. Trunk consists paired ventral dorsal longitudinal...