A5034786659- Marine Sponges and Natural Products
- Environmental DNA in Biodiversity Studies
- Microbial Community Ecology and Physiology
- Protist diversity and phylogeny
- Marine Ecology and Invasive Species
- Marine Biology and Environmental Chemistry
- Coral and Marine Ecosystems Studies
- Marine Biology and Ecology Research
- Marine and fisheries research
- Fish Ecology and Management Studies
- Identification and Quantification in Food
- Microbial Natural Products and Biosynthesis
- Parasite Biology and Host Interactions
- Image Processing and 3D Reconstruction
- Marine animal studies overview
- Coleoptera Taxonomy and Distribution
- Marine Bivalve and Aquaculture Studies
- Indigenous Studies and Ecology
- Pharmaceutical and Antibiotic Environmental Impacts
- Cephalopods and Marine Biology
- Computability, Logic, AI Algorithms
- Wireless Sensor Networks for Data Analysis
- Marine Toxins and Detection Methods
- Coastal and Marine Management
- European and International Law Studies
NORCE Norwegian Research Centre
2019-2024
Bergen Kommune
2023
Ikerbasque
2021
University of Bergen
2011-2018
The carnivorous sponge family Cladorhizidae has been subject to several recent studies, yet the cladorhizid fauna of Caribbean and adjacent areas remain comparatively poorly known. In this article we provide a description novel species Abyssocladia polycephalus sp. nov. from Muir Seamount NE Bermuda, belonging mainly Pacific genus Abyssocladia, Asbestopluma (Asbestopluma) caribica Beata Ridge. Additionally, re-description known Chondrocladia (Chondrocladia) verticillata Topsent, 1920,...
In this study, we describe a new species of cladorhizid sponge, which shows very peculiar mode life: It always occurs in association with the scleractinian cold-water corals Lophelia pertusa and Madrepora oculata. Although sponge lives nutrient-rich areas, document its carnivorous feeding behavior. The identity was verified using molecular markers: is closely related to North-Atlantic Cladorhiza abyssicola, but it differs distinctly, forms monophyletic clade. two might be considered close...
Abstract Significant effort is spent on monitoring of benthic ecosystems through government funding or indirectly as a cost business, and metabarcoding environmental DNA samples has been suggested possible complement alternative to current morphological methods assess biodiversity. In metabarcoding, public sequence database typically used match barcodes species identity, but these databases are naturally incomplete. The North Sea oil gas industry conducts large-scale programs in one the most...
Apart from its contribution to climate change, offshore oil and gas extraction is also a potential threat the diversity function of marine ecosystems. Routine monitoring environmental status affected areas therefore critical for effective management. While current morphology-based relatively time consuming, costly prone identification bias, DNA metabarcoding offers an attractive alternative assessing impacts drilling, or spills. However, be ready routine monitoring, performance needs...
Sponges belonging to genus Mycale are common and widely distributed across the oceans represent a significant component of benthic communities in term their biomass, which many species is largely composed by bacteria. However, microbial associated with inhabiting different geographical areas have not been previously compared. Here, we provide first detailed description microbiota two sub-Antarctic Magellan region (53°S) Western Antarctic Peninsula (62–64°S), geographically distant (>1,300...
The peripheral areas of deep-sea hydrothermal vents are often inhabited by an assemblage animals distinct to those living close vent chimneys. For many such taxa, it is considered that peak abundances in the periphery relate availability hard substrate as well increased concentrations organic matter generated at vents, compared background areas. However, peripheries less well-studied than assemblages vent-endemic and mechanisms through which fauna may benefit from environments generally...
As shown by recent studies, filter-feeding sponges are known to host a wide variety of microorganisms. However, the microbial community non-filtering carnivorous (Porifera, Cladorhizidae) has been subject less scrutiny. Here, we present results from comparative study methanotrophic sponge Cladorhiza methanophila mud volcano-rich area at Barbados Accretionary Prism, and five species Jan Mayen Vent Field (JMVF) Arctic Mid-Ocean Ridge. Results 16S rRNA microbiome data indicate presence diverse...
Environmental DNA methods such as metabarcoding have been suggested possible alternatives or complements to the current practice of morphology-based diversity assessment for characterizing benthic communities in marine sediment. However, source volume used sediment eDNA studies is several magnitudes lower than that morphological identification. Here, we data from a North Sea sampling station investigate what extent affected by bias and spatial heterogeneity. Using three grab parallels,...
The study presents Cladorhizidae collected during Ifremer cruises in the Atlantic Ocean from 1981 to 2004. Fifteen species are described genera Abyssocladia , Asbestopluma Chondrocladia and Cladorhiza with complete descriptions of five new species. While a couple were at 670–1010 m depth Rockall Bank, most middle lower bathyal abyssal depths (~2000–5000 m), ranging northern Mid-Atlantic Ridge coast Africa Gabon–Congo. A biogeographic analysis currently known Arctic, some Antarctic shows that...
Abstract Metabarcoding of environmental DNA (eDNA) is an attractive complement to morphological methods for surveys and routine monitoring marine sediment benthic communities. However, metabarcoding other genetic techniques are heavily affected by choices made during sampling, processing, analysis. Here, we investigated the effect different eDNA extraction protocols on observed alpha‐ beta diversity replicates from same grab. Specifically, compared (A) homogenization intensity extraction,...
Abstract In this study, we collected water eDNA from sampling stations at the first full scale floating offshore wind farm (OWF), Hywind Pilot Park, east of Peterhead, UK, and a nearby reference area. We combined targeted droplet digital PCR (ddPCR) quantification two commercially important species, Atlantic mackerel ( Scombrus scombrus ) herring Clupea harengus ), with metabarcoding fish plankton communities. The goal study was to assess performance data characterize pelagic communities its...
Abstract The North Atlantic deep-water polynoid worm Neopolynoe chondrocladiae is involved in an exceptional symbiotic relationship with two hosts: the carnivorous sponges Chondrocladia robertballardi and virgata. While this obligate relationship, its real nature unclear. We used a multidisciplinary approach to narrow down type of between symbiont hosts. Molecular connectivity analyses using COI 16S suggest that N. has high potential for dispersal, connecting sites hundreds kilometres apart,...
After nearly 30 years of experience with offshore wind energy (OWE), the industry is moving past initial learning phase and into large-scale development. One strongest motivations for OWE that projects are large enough to replace fossil-fueled electricity production we know a primary contributor ongoing climate crisis. Environmental concerns therefore also at core development, environmental research impact monitoring have been central parts since its inception. A volume science-based...
By creating a dependable, transparent, and cost-effective system for forecasting ongoing environmental impact monitoring of exploration exploitation activities in the deep sea, TRIDENT seeks to contribute sustainable seabed mineral resources. In order operate autonomously remote locations under harsh conditions send real-time data authorities charge granting licenses providing oversight, this will create integrate new technology innovative solutions. The efficient inspection that be created...
Carnivorous sponges belonging to family Cladorhizidae (Porifera, Demospongiae, Poecilosclerida) are unique within phylum Porifera due their ability capture and envelop small prey. While other use an aquiferous system filter water, the of cladorhizids is partially reduced or completely absent. can be found worldwide at all depths, but more common in deep sea, where oligotrophic conditions containing less suspended particles may favor a carnivorous feeding strategy. Here, we provide formal...
Metabarcoding of environmental DNA (eDNA) is an attractive complement to morphological methods for characterizing marine sediment benthic communities. However, incomplete sampling a major concern when inferring community composition, and metabarcoding results are heavily dependent on methodology. Using 18S V1-V2 COI markers, we investigated the effect observed alpha- beta diversity (A) homogenization intensity during extraction, (B) extraction replicates vs larger volume, (C) pre- post-PCR...
Seamounts on subantarctic New Zealand's Macquarie Ridge, including parts of Australia's Exclusive Economic Zone surrounding Island, have been demonstrated to be a rich source new species carnivorous sponges (Demospongiae Sollas, Poecilosclerida Topsent, Cladorhizidae Dendy). Four Abyssocladia Lévi, 1964, are described from Ridge seamounts and at other disparate locations: lanceola sp. nov. 7, 8, 9 (Australia EEZ), Seamount 10 (International Waters), the South Tasman Rise; rowdeni nov., first...
Apart from its contribution to climate change, offshore oil and gas extraction is also a potential threat the diversity function of marine ecosystems. Routine monitoring environmental status affected areas therefore critical for proper management. While current morphology-based relatively time-consuming, costly prone identification bias, DNA metabarcoding offers an attractive alternative, including impacts drilling, or spills. However, be ready routine monitoring, performance needs...
Until now only two species of Cladorhiza have been reported from the SW Atlantic, namely C. diminuta and inversa , despite a total 39 various parts globe. Here we describe new species, nicoleae sp. nov., dredged 750 m depth on continental slope off SE Brazil during French RV ‘Marion Dufresne’ expedition in 1987. It is an erect, pedunculated club-shaped sponge, 26 mm high with 12 radially arranged whip-like projections (each up to 3 long). The differs its closest relative, (redescribed here),...