A5002504634- Echinoderm biology and ecology
- Marine Biology and Ecology Research
- Marine and coastal plant biology
- Coral and Marine Ecosystems Studies
- Ocean Acidification Effects and Responses
- Marine Bivalve and Aquaculture Studies
- Spacecraft and Cryogenic Technologies
- Island Studies and Pacific Affairs
- Marine and fisheries research
- Marine Ecology and Invasive Species
- Genomics and Phylogenetic Studies
- Paleontology and Stratigraphy of Fossils
- Marine Biology and Environmental Chemistry
- Biomedical Text Mining and Ontologies
- Health and Medical Studies
- Arctic and Russian Policy Studies
- Spider Taxonomy and Behavior Studies
- Psychiatric care and mental health services
- Geology and Paleoclimatology Research
- Freshwater macroinvertebrate diversity and ecology
- Ichthyology and Marine Biology
- Turfgrass Adaptation and Management
- Synthesis and Biological Activity
- Species Distribution and Climate Change
- Nuclear Issues and Defense
Swedish Museum of Natural History
2015-2024
Stockholm University
2022
Musée National d'Histoire Naturelle
2020
Swiss Academy of Medical Sciences
2008-2011
University Hospital of Basel
1999-2008
Southwest University of Visual Arts
2008
Rutgers Sexual and Reproductive Health and Rights
2004
Universitäts Frauenklinik
2004
Uppsala University
1998
Museum am Rothenbaum
1992-1996
The World Register of Marine Species is an over 90% complete open-access inventory all marine species names. Here we illustrate the scale problems with names, synonyms, and their classification, describe how WoRMS publishes online quality assured information on species. Within WoRMS, 100 global, 12 regional 4 thematic databases are integrated a common taxonomy. Over 240 editors from 133 institutions 31 countries manage content. To avoid duplication effort, content exchanged 10 external...
Ophiuroid systematics is currently in a state of upheaval, with recent molecular estimates fundamentally clashing traditional, morphology-based classifications. Here, we attempt long overdue recast morphological phylogeny estimate the Ophiuroidea taking into account latest insights on microstructural features arm skeleton. Our final based total 45 ingroup taxa, including 41 species covering full range extant ophiuroid higher taxon diversity and 4 fossil known from exceptionally preserved...
A new classification of Ophiuroidea, considering family rank and above, is presented. The superfamily taxa in O’Hara et al. (2017) were proposed to ensure a better readability the phylogeny but are unavailable under provisions ICZN. Here, morphological diagnoses all 33 families five superfamilies provided. Ten families, Ophiosphalmidae fam. nov., Ophiomusaidae Ophiocamacidae Ophiopteridae Clarkcomidae Ophiopezidae Ophiernidae Amphilimnidae Ophiothamnidae nov. Ophiopholidae described....
The conspicuous Mediterranean brittle star Ophioderma longicauda (Bruzelius, 1805) has been discovered to represent a cryptic species complex, consisting of six nuclear clusters with contrasting reproductive modes (broadcast spawners and brooders). Here, O. is re-described. It distinguished by dark reddish-brown colouration both dorsally on the ventral disc, multiple tumid dorsal arm plates. One eastern brooding cluster described as zibrowii sp. nov., characterized olive-green colour single...
The growing interest in mineral resources of the deep sea, such as seafloor massive sulphide deposits, has led to an increasing number exploration licences issued by International Seabed Authority. In Indian Ocean, four licence areas exist, resulting new hydrothermal vent fields and discovery species. Most studies focus on active venting including their ecology, but non-vent megafauna Central Ridge South East remains poorly known.In framework Ocean Exploration project German license area for...
The brittle star samples collected by the Danish cruise ‘Galathea II’ (1950–52) had not been studied completely. We examined remaining deep-sea (>400 m) and present species inventory, discussing taxonomic issues in relation to recent phylogenetic data. About 235 were examined, over 9,300 individuals, from 67 74 sampling localities, at depths of 425–5340 m. complex Amphiophiura bullata (Thomson, 1877) is morphologically well separated, but molecular data suggest least two clades. propose...
The taxonomy of the genus Ophiocoma was last revised by Devaney in 1970. Recent discoveries new species and re-instatement previously synonymized names suggest that we still do not fully understand limits this genus. A recent biodiversity survey SW Indian Ocean shallow reefs strongly suggested an unrecognised genus, closely related to O. brevipes/O. dentata. This study examined both molecular phylogenetic relationships morphological characteristics several order characterise species. focal...
Abstract Motivation Traits are increasingly being used to quantify global biodiversity patterns, with trait databases growing in size and number, across diverse taxa. Despite interest a trait‐based approach the of deep sea, where impacts human activities (including seabed mining) accelerate, there is no single repository for species traits deep‐sea chemosynthesis‐based ecosystems, including hydrothermal vents. Using an international, collaborative approach, we have compiled first...
Abstract The macrofauna of the newly discovered hydrothermal vent field on Mohn Ridge at 71°N was investigated. Samples were collected during cruise BIODEEP 2006 using ROV 'Bathysaurus'. A total 180 species-level taxa identified. region contains very few vent-endemic species, but some species Porifera, Crustacea and Mollusca may be vent-associated. Dense aggregations motile non-vent such as Heliometra glacialis Gorgonocephalus eucnemis surrounded area, area in general only held small numbers...
Over the last decade, cryptic speciation has been discovered in an increasing number of taxa. Species complexes are useful models for understanding processes. Motivated by discovery brooding specimens common Atlanto-Mediterranean broadcast spawning brittle star, Ophioderma longicauda, a recent study revealed occurrence divergent mitochondrial lineages. We analysed 218 from 23 locations spread over geographic range species with partial Cytochrome c Oxidase subunit I (COI) sequences. A subset...
The origin and possible antiquity of the spectacularly diverse modern deep-sea fauna has been debated since beginning research in mid-nineteenth century. Recent hypotheses, based on biogeographic patterns molecular clock estimates, support a latest Mesozoic or early Cenozoic date for key groups present (echinoids, octopods). This relatively young age is consistent with hypotheses that argue extensive extinction during Jurassic Cretaceous Oceanic Anoxic Events (OAEs) mid-Cenozoic cooling...
During a faunistic survey on two shipwrecks in the northern Persian Gulf, several species of ophiuroid were collected 2015 and 2016. Ophiactis modesta is reported for first time Gulf Ophiothela venusta re-described, because it has likely been misidentified past, possibly confused with Ophiopsammium semperi. Both epizoic: was found octocorals, sponges. characterized by often bright striking colour patterns banded arms large irregular patches disc, varying between combinations yellow, red,...
The World Register of Marine species (WoRMS) has been established for a decade. early history the database involved compilation existing global and regional registers. This aggregation, combined with changes to data types changing needs WoRMS users, resulted in an evolution data-entry consistency over time. With task aggregating accepted names all marine approaching completion, our focus shifted improving quality held while keeping pace addition > 2000 new described annually. paper...
The Joint Research Centre (JRC) in Karlsruhe, partnership with the Directorate General for Energy (DG ENER), plays a critical role ensuring accurate analysis of nuclear materials, as mandated by EURATOM Treaty. Analytical Service at JRC Karlsruhe is dedicated to maintaining highest standards quality, accuracy, and traceability its analytical measurements, focus on uranium plutonium content isotopic composition. Our laboratory accredited according ISO/IEC 17025 has proven track record...
The ophiuroid skeleton continues to develop well beyond metamorphosis and small juveniles often lack many of the characters used identify adult specimens. ecological role postmetamorphic stages is largely unknown mainly due difficulties with their identification. Accurate descriptions postlarvae development are therefore necessary match them conspecifics. However, known for less than 2% about 2000 extant species ophiuroids. Consequently, taxonomic value juvenile still poorly understood. In...
Owing to the assumed lack of deep-sea macrofossils older than Late Cretaceous, very little is known about geological history communities, and most inference-based hypotheses argue for repeated recolonizations deep sea from shelf habitats following major palaeoceanographic perturbations. We present a fossil assemblage echinoderms, gastropods, brachiopods ostracods, Early Jurassic Glasenbach Gorge, Austria, which includes oldest representatives number extant groups, thus implies that in situ...
Heterochronic development has been proposed to have played an important role in the evolution of echinoderms. In class Ophiuroidea, paedomorphosis (retention juvenile characters into adulthood) documented families Ophiuridae and Ophiolepididae but not investigated on a broader taxonomic scale. Historical errors, confusing stages with paedomorphic species, show difficulties correctly identifying effects heterochrony evolution. This study presents detailed analysis 40 species morphologies...
The animal communities associated with the deep-sea reducing environment have been studied for almost 30 years, but until now only a single species of ophiuroid, Ophioctenella acies , has found at both hydrothermal vents and methane cold seeps. Since faunal overlap between vent seep is small many endemic among other taxa (e.g. Mollusca, Crustacea), additional ophiuroids were expected previously unstudied sites. Chemical compositions sites differ greatly from nearby bathyal environment....
Species rich benthic communities have been reported from some seamounts, predominantly the Atlantic and Pacific Oceans, but fauna habitats on Indian Ocean seamounts are still poorly known. This study focuses two a submarine volcano (cratered seamount--CSM) non-volcano (SM2) in Andaman Back-arc Basin (ABB), basin itself. The main purpose was to explore generate regional biodiversity data summit flank (upper slope) of for comparison with other worldwide. We also investigated how substratum...
A new species of Ophiuroidea, Ophiacantha scissionis sp. nov., is described. It was collected from Munseom Island, Jeju-do, South Korea at a depth 28-36 m, by SCUBA diving. has unique and distinct morphological characteristics: small disk, densely covered trifid spines, radial shields completely concealed disk six arms with four arm spines proximally, fissiparous. In addition, this clearly distinguished other mitochondrial COI. This usually hexamerous reproduces asexually fissiparity. the...
New Caledonia is a species-rich region that has been the focus of biodiversity research for over 40 years. The expedition “Atelier Lifou 2000” collected benthic fauna at island Lifou, Loyalty Islands, Caledonia, in November 2000. This taxonomic account brittle stars found. 94 species were identified, 51 them new region, and seven to science, increasing total number known from 204. are described genera Squamophis, Astroceras, Astrogymnotes, Ophiochondrus, Ophiomoeris, Ophiozonella...