Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
668
datasets available to search
ShareScore release 0.9.0
Dataset results
668 results for “polychaetes”
Figure 6 in Vertical distribution and migration of planktonic polychaete larvae in Onagawa Bay, north-eastern Japan
Figure 6. Box plots of vertical distribution of two spionid larvae: a, Pseudopolydora achaeta and b, Prionospio spp. The central line in the box represents the median, the upper and lower boundaries of the box represent the quartiles, and the vertical bar represents the 95% range of larval distribution (left axes). The dashed wavy lines and dark shaded areas represent the tidal level (right axes) and night-time, respectively.
Figure 5 in Vertical distribution and migration of planktonic polychaete larvae in Onagawa Bay, north-eastern Japan
Figure 5. Diel changes in vertical distribution of planktonic spionid larvae at St. 1 in Onagawa Bay from 8:00 a.m. on 20 August to 5:00 a.m. on 21 August 2012.
Figure 4 in Vertical distribution and migration of planktonic polychaete larvae in Onagawa Bay, north-eastern Japan
Figure 4. Diel changes in vertical distribution of planktonic polychaete (upper axes) and chlorophyll fluorescence (ppb) (lower axes) larvae at St. 1 in Onagawa Bay from 8:00 a.m. on 20 August to 5:00 a.m. on 21 August, 2012.
Figure 3 in Vertical distribution and migration of planktonic polychaete larvae in Onagawa Bay, north-eastern Japan
Figure 3. Vertical distribution of each species or genus of planktonic spionid larvae at St. 1 in Onagawa Bay from January to December 2012.
Figure 2 in Vertical distribution and migration of planktonic polychaete larvae in Onagawa Bay, north-eastern Japan
Figure 2. Vertical distribution of each family of planktonic polychaete larvae (upper axes) and chlorophyll a concentration (µg L−1) (lower axes) at St. 1 in Onagawa Bay from January to December 2012.
Figure 5 in Morphological anomalies in polychaetes: Perinereis species (Polychaeta: Annelida) examples from the Brazilian coast
Figure 5. Number and type of morphological anomalies found in the species P. anderssoni and P. ponteni.
Figure 1 in Character mapping and cladogram comparison versus the requirement of total evidence: does it matter for polychaete systematics?
Figure 1. Example of the error of cladogram comparisons. A, phylogenetic hypotheses inferred from separate sets of premises. Letters on cladogram 'nodes' indicate population-splitting events relevant to the various hypotheses of character origin/fixation within ancestral populations. The requirement of total evidence precludes such a comparison of cladogram topologies because explanations of characters 1(1)–5(1) by population-splitting events A–C (left cladogram) contradict explanations of 6(1)–8(1) by population-splitting events D–F. See text for further discussion. B, explaining observations in accordance with the requirement of total evidence, correcting the problem in 'A'.
Figure 2 in Morphological anomalies in polychaetes: Perinereis species (Polychaeta: Annelida) examples from the Brazilian coast
Figure 2. Morphological anomalies in P. anderssoni: A. single antenna; B. basally fused antennae; C. completely fused antennae; D. seven tentacular cirri; E. two parapodia on the same side of chaetiger; F. five eyes; G. nine tentacular cirri; H. six tentacular cirri.
Figure 2 in Polychaete assemblages associated with the invasive green alga Avrainvillea amadelpha and surrounding bare sediment patches in Hawaii
Figure 2. nMDS ordinations of polychaete assemblages: A, using data of all taxa; B, bubbles indicating abundance in number of individuals; C, bubbles indicating values of Shannon–Wiener diversity; D, bubbles indicating values of Pielou's Evenness.
Figure 6 in Written in stone: history of serpulid polychaetes through time
Figure 6. Outline of geological history of calcareous polychaetes and some convergent tube-dwelling taxa ("pseudoserpulids") during the Phanerozoic. A – Cloudina hartmannae Germs, 1972, SEM, Late Ediacaran (549-542 Ma), China (after Hua et al., 2005: fig. 1A). B – Cornulites sp., Early Ordovician (485-470 Ma), Estonia (after Vinn, 2013a: fig. 8). C – microconchoid Palaeoconchus tenuis (Sowerby in Murchison, 1839), Silurian (Wenlockian; 433-427 Ma), England (after Vinn, 2006: fig. 4). Scale: A – 3 mm, B – 0.5 mm, C – 1 mm.
Figure 5 in Written in stone: history of serpulid polychaetes through time
Figure 5. Ultrastructural diversity of fossil serpulids and some typical "pseudoserpulids". A-C: ultrastructures of most characteristic pseudoserpulids: A – Cloudina sinensis Zhang et al. in Ding et al., 1992, showing microgranular structure; Late Ediacaran (549-542 Ma), China (after Feng et al., 2003: fig. 1b). B – microconchoid Palaeoconchus tenuis (Sowerby in Murchison, 1839), Silurian (Wenlockian; 433-427 Ma), England (after Vinn, 2006: fig. 4). C – microconchoid Punctaconchus ampliporus Vinn et Taylor, 2007, surface showing pores; Middle Jurassic (Bathonian, 168-166 Ma), U.K. (after Vinn and Taylor, 2007: fig. A 2). D-I: ultrastructures of fossil serpulids: D – 'Serpula' etalensis (Piette, 1856), longitudinal section of irregularly oriented prismatic structure (IOP); Early Jurassic, Late Pliensbachian (~185 Ma), eastern Germany (after Vinn et al., 2008c: fig. 1D). E – Rotularia spirulaea (Lamarck, 1818), longitudinal section of homogeneous angular crystal structure? (HAC); Eocene (56-34 Ma) of Doss Trento, Northern Italy. F – Protula sp., cross section of semi-ordered irregularly oriented prismatic structure (SOIOP); Tongrian, Late Eocene (~35 Ma), Latdorf, North Germany (after Vinn, 2007: fig. 3.1, detail). G – Propomatoceros sp., outer tube layer, spherulitic prismatic structure (SPHP); Middle Volgian (~148 Ma), Samara region, Russia. H – Placostegus polymorphus Rovereto, 1895, cross section of simple prismatic structure (SP); Badenian (~15 Ma), Miocene, Ehrenhausen, Styria, Austria (after Vinn, 2007: fig. 1.5, detail). I – Spiraserpula sp., oblique section of lamello-fibrillar structure (LF); Badenian (~15 Ma), Miocene, Nussdorf, Vienna, Austria (after Vinn, 2007: fig. 4.5).
Figure 3 in Written in stone: history of serpulid polychaetes through time
Figure 3. Ultrastructural diversity of Recent serpulid tubes. A-E: isotropic structures: A – Serpula crenata Ehlers, 1908, inner tube layer, cross section of irregularly oriented prismatic structure (IOP), B – Pseudovermilia madracicola ten Hove, 1989, cross section of spherulitic irregularly oriented prismatic structure (SIOP) (after Vinn et al., 2008b: fig. 2A), C – Neovermilia falcigera (Roule, 1898), cross section of irregularly oriented platy structure (IOPL), D – Laminatubus alvini ten Hove et Zibrowius, 1986, cross section of homogeneous angular crystal structure (HAC), E – Pomatostegus stellatus (Abildgaard, 1789), cross section of homogeneous rounded crystal structure (HRC) (after Vinn et al., 2008b: fig. 3E), F, G: semi-oriented structures: F – Protula diomedeae Benedict, 1887, cross section of semi-ordered irregularly oriented prismatic structure (SOIOP) (after Vinn, 2007: fig. 5.5), G – Pyrgopolon ctenactis Mörch, 1863, outer tube layer, cross section of semi-ordered spherulitic irregularly oriented prismatic structure (SOSIOP) (after Vinn, 2007: fig. 7.4), H, I and M-O: oriented prismatic structures: H – Spiraserpula caribensis Pillai et ten Hove, 1994, outer tube layer, longitudinal section of spherulitic prismatic structure (SPHP) (after Vinn, 2007: fig. 6.5), I – Vitreotubus digeronimoi Zibrowius, 1979, longitudinal section of simple prismatic structure (SP) (after Vinn et al., 2008b: fig. 5B, enlarged), J-L: oriented complex structures: J – Hydroides dianthus Verrill, 1873, third layer from outside, longitudinal section of lamello-fibrillar structure (LF) (after Vinn, 2008: fig. 4.5), K – Floriprotis sabiuraensis Uchida, 1978, inner layer, cross section of spherulitic lamello-fibrillar structure (SLF), L – Spirobranchus giganteus (Pallas, 1766), outer layer, longitudinal section of ordered fibrillar structure (OF) (after Vinn et al., 2008b: fig. 6B), M-O – Ditrupa arietina (O. F. Müller, 1776), regularly ridged prismatic structure (RRP): M – tube external surface, etched with 1% acetic acid for 30 sec (after Vinn et al., 2008d: fig. 3F), N – external tube layer, longitudinal section, O – lateral surface of a RRP structure prism with ridges (after Vinn et al., 2008d: fig. 4A).
Figure 1. A in Written in stone: history of serpulid polychaetes through time
Figure 1. A hypothesis of phylogenetic relationships within Serpulidae (a Bayesian majority rule consensus phylogram of the combined 18S and 28S rDNA serpulid sequence data; modified from Kupriyanova et al., 2009). Nodes with posterior probabilities of 1.0 are indicated by "*".
Figure 3 in Polychaete diversity in the estuarine habitats of Términos Lagoon, southern Gulf of Mexico
Figure 3. Distribution of the number of species by habitat in Términos Lagoon. (SB: soft bottoms; SG: seagrass beds; M: mangroves).
Figure 4 in Written in stone: history of serpulid polychaetes through time
Figure 4. Schematic presentation of serpulid tube ultrastructures (from Vinn et al., 2008b). A – irregularly oriented prismatic (IOP) structure. B – spherulitic irregularly oriented prismatic (SIOP) structure. C – irregularly oriented platy (IOPL) structure. D – homogeneous angular crystal (HAC) structure. E – rounded homogeneous crystal (RHC) structure. F – semi-ordered irregularly oriented prismatic (SOIOP) structure. G – semi-ordered spherulitic irregularly oriented prismatic (SOSIOP) structure. H – spherulitic prismatic (SPHP) structure. I – simple prismatic (SP) structure. J – lamellofibrillar (LF) structure. K – spherulitic lamello-fibrillar (SLF) structure. L – ordered fibrillar (OF) structure. Regularly ridged prismatic structure (RRP, see fig. 3 M-O) is similar to SP structure. Abbreviations: H: horizontal section; L: longitudinal section; T: transverse section.
Figure 1 in Polychaete assemblages associated with the invasive green alga Avrainvillea amadelpha and surrounding bare sediment patches in Hawaii
Figure 1. Map of the study area showing the algae ('A' stations; circles) and sediment stations ('S' stations; squares).
Figure 9 in Written in stone: history of serpulid polychaetes through time
Figure 9. Geological history of calcareous tube-building polychaetes in Mesozoic and Cenozoic suggested by fossil record. Only the most common serpulid genera and those from the phylogenetic tree (fig. 1) are included. For legend see Figure 6. Major events: 1 – most ancient finds of cirratulids with calcified tubes; 2 – the youngest possible position of "coiling point" in spirorbins; 3 – first finds of calcified opercula in several serpulid lineages; 4 – penetration of serpulids to freshwater cave habitat.
Figure 2 in Character mapping and cladogram comparison versus the requirement of total evidence: does it matter for polychaete systematics?
Figure 2. Example of the error of character mapping. A, phylogenetic hypotheses are inferred for a set of characters. Numbers on cladogram 'nodes' indicate population-splitting events relevant to the various hypotheses of character origin/fixation within ancestral populations (not shown; cf. fig. 1). B, a different set of characters are 'mapped' onto the branches of the cladogram in 'A'. C, the 'mapped' characters in 'B' actually refer to phylogenetic hypotheses inferred separately from the hypotheses implied by the cladogram in 'A' and 'B'. D, explaining observations in accordance with the requirement of total evidence, correcting the problem in 'B' and 'C'. See text for further discussion.
Figure 3 in Morphological anomalies in polychaetes: Perinereis species (Polychaeta: Annelida) examples from the Brazilian coast
Figure 3. Morphological anomalies in P. ponteni: A. nine tentacular cirri; B. seven tentacular cirri.
Figure 4 in The pros and cons of using micro-computed tomography in gross and micro-anatomical assessments of polychaetous annelids
Figure 4. Pharyngeal anatomy of Syllidae: Syllis gracilis (a-c, PTA stained) and Hediste diversicolor (d-h,). Syllis a) section through body showing the proventriculus; b) surface morphology, lines c where transverse section c image taken, line d where transverse section d image taken; c) TS showing pharyngeal tube; d) TS showing proventricle. Scale bars = 0.5 mm. Hediste e) surface morphology; f) section through pharynx, lines g and h where transverse section images taken; g) TS through anterior pharynx at level of jaws; h) TS through distal pharynx. TS through pharynx indicates that the pharynx is not symmetrical, particularly in the distal part. Scale bars e, f = 5.00 mm, g,h = 1.00 mm. Images 1a–d were produced using the SkyScan 1172 microtomograph at HCMR at 60kV / 167µA, without a filter, no camera binning, full rotation of 360°, tungsten target. Images i-h were produced using the Nikon metrology HMX ST 225 at the NHM (60 KV, 2 sec exposure, molybdenum target). Abbreviations used:; DLM–dorsal longitudinal muscles; J–jaws; M–mouth; P–pharynx; Pr–prostomium; PO–proventricle; PS–proboscidian sheath; VLM–ventral longitudinal muscles.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.