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355 results for “northeast Atlantic”
FIGURE 3 in Two new species of Prionospio (Annelida: Spionidae) from the Northwest and Northeast Atlantic
FIGURE 3. Prionospio gayheadia sp. nov., paratype (LACM-AHF-POLY 6272): (A) anterior region, dorsal view; (B) anterior region, dorso-lateral view; (C) anterior region, lateral view; (D) anterior region, dorso-lateral view. Scale bars: A–B 0.2 mm; C–D 0.5 mm.
FIGURE 2 in Two new species of Prionospio (Annelida: Spionidae) from the Northwest and Northeast Atlantic
FIGURE 2. Prionospio gayheadia sp. nov., paratype (LACM-AHF-POLY 6272): (A) anterior region, dorsal view; (B) anterior region, lateral view; (C) parapodium and branchia, chaetiger 3; (D) parapodium and branchia, chaetiger 4; (E) parapodium, chaetiger 2; (F) notopodium, chaetiger 13; (G) parapodium, middle chaetiger; (H) parapodium, posterior chaetiger; (I) capillary notochaeta, chaetiger 2, posterior row; (J) capillary notochaeta, chaetiger 2, anterior row; (K) capillary neurochaeta, chaetiger 2, posterior row; (L) capillary neurochaeta, chaetiger 2, anterior row; (M) capillary notochaeta, middle chaetiger; (N) neuropodial hooded hook; (O) notopodial hooded hook; (P) sabre chaeta; (Q) pygidium, lateral view. Abbreviation: Nuchal organ (No). Scale bars: A–H, Q 10 µm; I–M 5 µm; N–P 3 µm.
FIGURE 5 in Two new species of Prionospio (Annelida: Spionidae) from the Northwest and Northeast Atlantic
FIGURE 5. Prionospio multisetosa sp. nov., paratype (LACM-AHF-POLY 4859): (A) anterior region, dorsal view; (B) anterior region, lateral view. Scale bars: A 0.5 mm; B 0.5 mm.
Genomic survey of edible cockle (Cerastoderma edule) in the Northeast Atlantic: a baseline for sustainable management of its wild resources
<p>Knowledge on how environmental factors shape the genome of marine species is crucial for sustainable management of fisheries and wild populations. The edible cockle (Cerastoderma edule) is a marine bivalve distributed along the Northeast Atlantic coast of Europe and is an important resource from both commercial and ecological perspectives. We performed a population genomics screening using 2b-RAD genotyping on 9,309 SNPs localised in the cockle's genome on a sample of 536 specimens pertaining to 14 beds in the Northeast Atlantic Ocean to determine the genetic structure with regard to environmental variables. Larval dispersal modelling considering species behaviour and interannual / interseasonal variation in ocean conditions was carried out as an essential background to which compare genetic information. Cockle populations in the Northeast Atlantic displayed low but significant geographical differentiation between populations (FST = 0.0240; P < 0.001), albeit not across generations. We identified 742 and 36 outlier SNPs related to divergent and balancing selection in all the geographical scenarios inspected, and sea temperature and salinity were the main environmental drivers suggested. Highly significant linkage disequilibrium was detected at specific genomic regions against the very low values observed across the whole genome, suggestive of selective sweeps. Two main genetic groups were identified, northwards and southwards of French Brittany, in accordance with the larval dispersal modelling, which suggested a barrier for larval dispersal linked to the Ushant front. Further genetic subdivision was observed using outlier loci and considering larval behaviour. The northern group was divided into the Irish/Celtic Seas and the English Channel/North Sea, while the southern group was divided into three subgroups. This information represents the baseline for management of cockles, designing conservation strategies, founding broodstock for depleted beds, and producing suitable seed for aquaculture production.</p>
Supplementary material 2 from: Thiel R, Knebelsberger T (2016) How reliably can northeast Atlantic sand lances of the genera Ammodytes and Hyperoplus be distinguished? A comparative application of morphological and molecular methods. ZooKeys 617: 139-164. https://doi.org/10.3897/zookeys.617.8866
Table S2 : Explanation note: Museum IDs and collection data for specimens of Ammodytes tobianus used for morphological analyses only.
Supplementary material 1 from: Thiel R, Knebelsberger T (2016) How reliably can northeast Atlantic sand lances of the genera Ammodytes and Hyperoplus be distinguished? A comparative application of morphological and molecular methods. ZooKeys 617: 139-164. https://doi.org/10.3897/zookeys.617.8866
Table S1 : Explanation note: Supplementary metadata for specimens used for both morphological and genetic analyses; Museum and Sample IDs are specimen identifiers, BOLD Process IDs are unique codes automatically generated for each record on BOLD, GenBank Accession NOs represent sequence identifiers.
FIGURE 9 in Benthic hydroids (Cnidaria, Hydrozoa) from bathyal and abyssal depths of the Northeast Atlantic held in the modern Discovery Collections
FIGURE 9. Antennella secundaria (Gmelin, 1791): A, third stem internode with nematothecae; B, ahydrothecate internode with one nematotheca; C, ahydrothecate internode with three nematothecae; D, lateral view of hydrothecate internode showing hydrotheca and mesial superior nematotheca (arrow); E, lateral view of hydrothecate internode showing hydrotheca and lateral nematothecae (arrow). Nemertesia ramosa (Lamarck, 1816): cauline apophysis showing nematothecae and mamelon (arrow); G, fragment of hydrocladium showing arrangement; H, hydrocladial internode with hydrotheca and nematothecae. Scale bars: 200 µm (A–C, F–G), 100 µm (D–E, H).
FIGURE 8 in Benthic hydroids (Cnidaria, Hydrozoa) from bathyal and abyssal depths of the Northeast Atlantic held in the modern Discovery Collections
FIGURE 8. Schizotricha profunda (Nutting, 1900): A–B, cauline internodes showing axillary hydrotheca and cauline apophysis; C–D, hydrocladial internodes; E, detail of hydrocladial internode, showing hydrotheca and basal part of two gonothecae; F, fragment of stem showing hydrocladial disposition and a gonotheca. Scale bars: 200 µm (C–D, F), 100 µm (A– B, E).
FIGURE 7 in Benthic hydroids (Cnidaria, Hydrozoa) from bathyal and abyssal depths of the Northeast Atlantic held in the modern Discovery Collections
FIGURE 7. Lytocarpia myriophylum (Linnaeus, 1758): A, rhomboid prosegment with nematotheca; B, hydrocladial apophysis and nematothecae; C, fragment of hydrocladium showing hydrothecal arrangement; D–E, hydrothecae; F, distal part of hydrotheca showing cusps of hydrothecal aperture. Scale bars: 200 µm (A, C, E), 100 µm (B, D, F).
FIGURE 6 in Benthic hydroids (Cnidaria, Hydrozoa) from bathyal and abyssal depths of the Northeast Atlantic held in the modern Discovery Collections
FIGURE 6. Sertularella gayi (Lamouroux, 1821): A–D: hydrothecae showing variation in hydrothecal shape; E, distal part of gonotheca. Diphasia margareta Hassall, 1841: F, hydrotheca and origin of branch; G, distal part of hydrotheca showing hydrothecal aperture; H, characteristic perisarc thickening (arrow). Scale bars: 200 µm (A–F), 100 µm (G–H).
FIGURE 5 in Benthic hydroids (Cnidaria, Hydrozoa) from bathyal and abyssal depths of the Northeast Atlantic held in the modern Discovery Collections
FIGURE 5. Clytia gigantea (Hincks, 1866): A, hydrotheca; B, detail of distal part of hydrotheca showing aperture with cusps. Zygophylax levinseni (Saemundsson, 1911): C, fragment of branch showing hydrothecal arrangement; D, hydrotheca, pedicel and apophysis; E, origin of branch showing apophysis and perisarc hole left by missing nematotheca; F, nematotheca; G, gonotheca; H, nematocyst (arrow). Scale bars: 200 µm (A, C, G), 100 µm (B, D–F), 10 µm (H).
FIGURE 4 in Benthic hydroids (Cnidaria, Hydrozoa) from bathyal and abyssal depths of the Northeast Atlantic held in the modern Discovery Collections
FIGURE 4. Modeeria rotunda (Quoy & Gaimard, 1827): A, hydrotheca; B, basal part of hydrotheca showing diaphragm (arrow). Stegolaria geniculata (Allman, 1888): C, hydrotheca (note geniculate arrangement); D, hydrotheca showing plicate operculum; E, basal part of hydrotheca showing diaphragm (arrow); F, detail of distal part of hydrotheca. Stegopoma plicatile (M. Sars, 1863): G, adnate hydrotheca; H, free hydrotheca. Scale bars: Scale bars: 200 µm (A, C-D, G-H), 100 µm (B, E–F),
FIGURE 3 in Benthic hydroids (Cnidaria, Hydrozoa) from bathyal and abyssal depths of the Northeast Atlantic held in the modern Discovery Collections
FIGURE 3. Acryptolaria crassicaulis (Allman, 1888): A, hydrotheca; B, macrobasic mastigophore nematocyst (arrow). Cryptolarella abyssicola (Allman, 1888): C-D, hydrothecae; E, gonotheca. Lafoea dumosa (Fleming, 1820): F, hydrotheca; G, detail of basal part of hydrotheca; H, isorhiza nematocyst. Scale bars: 200 µm (A, C-F), 100 µm (G), 10 µm (B, H).
FIGURE 2 in Benthic hydroids (Cnidaria, Hydrozoa) from bathyal and abyssal depths of the Northeast Atlantic held in the modern Discovery Collections
FIGURE 2. Amphinema biscayana (Browne, 1907): A, cross section of polysiphonic stem, showing main axial tube and accessory ones; B, cross section of a distal main tube (note inner network of perisarc); C, Polyp perisarc cup originating from auxiliary tube. D, polyp emerging from perisarc cup; E-F, gonophores; G, actinula-like form; H, microbasic eurytele nematocyst (arrow). Scale bars: 200 µm (A-B, D, E-F), 100 µm (C, G), 10 µm (H).
FIGURE 11 in New species of Echinoderes (Kinorhyncha: Cyclorhagida) from Mediterranean seamounts and from the deep-sea floor in the Northeast Atlantic Ocean, including notes on two undescribed species
FIGURE 11. Echinoderes sp. 1, Nomarski photomicrographs of a female specimen (ZMB 11593). A, neck and segments 1–9, ventral view; B, segments 1–8, dorsal view; C, neck and segment 1, ventral view, focusing on left midlateral type-2 glandular cell outlet; D, segments 1–3, ventral view; E, segments 6–8, ventral view; F, segments 9–11, ventral view. Abbreviations: ltas, lateral terminal accessory spine; lts, lateral terminal spine; lvs, lateroventral acicular spine; mds, middorsal acicular spine. Digits after abbreviations indicate the corresponding segment number. Black arrows, sensory spots; white arrowhead, type-1 glandular cell outlet; black arrowheads, type-2 glandular cell outlets.
FIGURE 8 in New species of Echinoderes (Kinorhyncha: Cyclorhagida) from Mediterranean seamounts and from the deep-sea floor in the Northeast Atlantic Ocean, including notes on two undescribed species
FIGURE 8. Echinoderes unispinosus sp. nov., camera lucida drawings. A, B, Holotype, female (ZMB 11587), entire animal, dorsal and ventral views of segments 1–11, respectively; C, D, paratype, male (ZMB 11588), segments 10 and 11, dorsal and ventral views, respectively. Abbreviations: gco1, type-1 glandular cell outlet; gco2, type-2 glandular cell outlet; ltas, lateral terminal accessory spine; lts, lateral terminal spine; lvs, lateroventral acicular spine; mds, middorsal acicular spine; pe, penile spine; si, sieve plate; ss, sensory spot; te, tergal extension.
FIGURE 9 in New species of Echinoderes (Kinorhyncha: Cyclorhagida) from Mediterranean seamounts and from the deep-sea floor in the Northeast Atlantic Ocean, including notes on two undescribed species
FIGURE 9. Echinoderes unispinosus sp. nov., Nomarski photomicrographs of the holotypic female (ZMB 11587). A, neck and segments 1–5, ventral view; B, neck and segments 1–5, dorsal view; C, neck and segments 1–2, ventral view, focusing on right midlateral type-2 glandular cell outlet on segment 1; D, segments 3–8, ventral view. Abbreviations: lvs, lateroventral acicular spine; mds, middorsal acicular spine; seg, segment. Digits after abbreviations indicate the corresponding segment number. Black arrows, sensory spots; white arrowheads, type-1 glandular cell outlets; black arrowheads, type-2 glandular cell outlets.
FIGURE 7 in New species of Echinoderes (Kinorhyncha: Cyclorhagida) from Mediterranean seamounts and from the deep-sea floor in the Northeast Atlantic Ocean, including notes on two undescribed species
FIGURE 7. Echinoderes multiporus sp. nov., males (A, D, ZMB 11591g; B, E, G, ZMB 11591i) and a female (C, F, ZMB 11591j), scanning electron micrographs. A, segments 5–9, laterodorsal view (right side); B, segments 6–8, ventral view; C, anterior part of segment 8, ventral view; D, segments 9–11, laterodorsal view (right side); E, segments 10 and 11, lateral view (right side); F, segments 10 and 11, lateral view (left side); G, segments 10 and 11, ventral view. Abbreviations: ltas, lateral terminal accessory spine; lts, lateral terminal spine; lvs, lateroventral acicular spine; mds, middorsal acicular spine; mlt, midlateral tube; pa, papilla, pe, penile spine. Digits after abbreviations indicate the corresponding segment number. Black arrows, sensory spots; white arrowhead, type-1 glandular cell outlet; black arrowheads, type-2 glandular cell outlets.
FIGURE 12 in New species of Echinoderes (Kinorhyncha: Cyclorhagida) from Mediterranean seamounts and from the deep-sea floor in the Northeast Atlantic Ocean, including notes on two undescribed species
FIGURE 12. Echinoderes sp. 2, Nomarski photomicrographs of a female specimen (ZMB 11595). A, entire animal; B, segments 1–6, lateral view (right side); C, segments 3–7, lateral view (right side); D, segments 6 and 7, lateral view (right side); E, segments 8–11, dorsal view; F, segments 8–11, ventral view. Abbreviations: lat, lateral accessory tube; ltas, lateral terminal accessory spine; lts, lateral terminal spine; lvs, lateroventral acicular spine; lvt, lateroventral tube; mds, middorsal acicular spine. Digits after abbreviations indicate the corresponding segment number. Black arrows, sensory spots; white arrowheads, type-1 glandular cell outlets; black arrowhead, type-2 glandular cell outlet.
FIGURE 10 in New species of Echinoderes (Kinorhyncha: Cyclorhagida) from Mediterranean seamounts and from the deep-sea floor in the Northeast Atlantic Ocean, including notes on two undescribed species
FIGURE 10. Echinoderes unispinosus sp. nov., Nomarski photomicrographs of the holotypic female (ZMB 11587) (A, B) and a paratypic male (ZMB 11588) (C). A, segments 8–11, ventral view, focusing on right sublateral type-2 glandular cell outlet; B, segment 11, ventral view; C, segment 11, ventral view. Abbreviations: ltas, lateral terminal accessory spine; lts, lateral terminal spine; pe, penile spine; te, tergal extension. Black arrowheads, type-2 glandular cell outlets.
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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)
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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.