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51 results for “benthopelagic”
Fig. 4 in Duobrachium sparksae (incertae sedis Ctenophora Tentaculata Cydippida): A new genus and species of benthopelagic ctenophore seen at 3,910 m depth off the coast of Puerto Rico
Fig. 4. Location and bathymetry of dive site. A. Dive site north of Puerto Rico, B. Guajataca Canyon and C. The 50 km wide Arecibo Amphitheater on the southern margin of the Puerto Rico trench.
Fig. 3 in Duobrachium sparksae (incertae sedis Ctenophora Tentaculata Cydippida): A new genus and species of benthopelagic ctenophore seen at 3,910 m depth off the coast of Puerto Rico
Fig. 3. Digital illustration of the habit of Duobrachium sparksae n. gen. n. sp. A. tentacular view B. stomodeal view. Illustrations by NB.
Fig. 1 in Duobrachium sparksae (incertae sedis Ctenophora Tentaculata Cydippida): A new genus and species of benthopelagic ctenophore seen at 3,910 m depth off the coast of Puerto Rico
Fig. 1. Stills captured from video observations of Duobrachium sparksae n. gen. n. sp. A. First sighting (USNM 1607331), showing body shape in stomodeal plane and tentacles coiling within tentacle sheath inside the arms. 16:30:40 UTC; B. First sighting (USNM 1607331), showing body shape in tentacular plane and gonads beneath all ctene rows. Cand D. Second sighting (USNM 1607332) showing regular tentilla of tentacles and large embryos/eggs within gonads, highlighting the quality of the HD video. 17:37:36 UTC.
Fig. 2 in Duobrachium sparksae (incertae sedis Ctenophora Tentaculata Cydippida): A new genus and species of benthopelagic ctenophore seen at 3,910 m depth off the coast of Puerto Rico
Fig. 2. Line drawing schematic of Duobrachium sparksae n. gen. n. sp. A. Tentacular view of the main body of the animal. B. Oral view. C. Aboral view. ct - ctene row, g - gonads, m - mouth, ta - tentillum, tent - tentacle, stat - statocyst, sto - stomodeum. Illustrations by NB.
Benthic and benthopelagic Ostracoda from a wide depth range (189-6224 m) in the Atlantic Sector of the Southern Ocean
<p>This dataset contains abundance (i.e., absolute number of speicmens/individuals) of ostracod genera collected during three cruises of the German Research Vessel Polarstern in the Atlantic Sector of the Southern Ocean. The cruises are EASIZ II (PS 48/ANT XV-3), ANDEEP I (PS 61/ANT XIX-3), ANDEEP II (PS 67/ANTXXII-3), and ANDEEP III (PS 67/ANTXXII-4). The samples related to the present file were all collected using an epibenthic sledge, described by (Brandt & Barthel, 1995; Brenke, 2005, see compelte references in Brandão et al., 2021, Zoological Journal of the Linnean Society). These ostracods are both benthic (most specimens collected) and bentho-pelagic (Halocyprididae, which in the case of the present dataset, swam just above the sea floor).</p>
Arctic nekton uncovered by eDNA metabarcoding: diversity, potential range expansions and benthopelagic coupling
<p><span>The Arctic Ocean is home to a unique fauna that is disproportionately affected by global warming but that remains under-studied</span><span>. Due to their high mobility and responsiveness to global warming, cephalopods and fishes are good indicators of the reshuffling of Arctic communities. Here, we established a nekton biodiversity baseline for the Fram Strait, the only deep connection between the North Atlantic and Arctic Ocean. Using universal primers for fishes (12S) and cephalopods (18S), we amplified environmental DNA (eDNA) from seawater (50–2700 m) and deep-sea sediment samples collected at the LTER HAUSGARTEN observatory. We detected twelve cephalopod and 31 fish taxa in the seawater and seven cephalopod and 28 fish taxa in the sediment,</span><span> including the elusive Greenland shark (</span><span><em>Somniosus</em> <em>microcephalus</em></span><span>)</span><span>. Our data suggest three fish (<em>Mallotus</em> <em>villosus</em>, <em>Thunnus</em> sp. and <em>Micromesistius</em> <em>poutassou</em>) and one squid (<em>Histioteuthis</em> sp.) range expansions. </span><span>The detection of eDNA of pelagic origin in the sediment also suggests that <em>M. villosus</em>, <em>Arctozenus</em> <em>risso</em> and <em>M. poutassou</em> as well as gonatid squids are potential contributors to the carbon flux. </span><span>Continuous nekton monitoring is needed to understand the ecosystem impacts of rapid warming in the Arctic and eDNA proves to be a suitable tool for this endeavor.</span></p>
Arctic nekton uncovered by eDNA metabarcoding: diversity, potential range expansions and benthopelagic coupling
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Data from: Hitting rock bottom: exaptation, ecological filtering and the benthopelagic divergence of Percid fishes
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Benthic and benthopelagic Ostracoda from a wide depth range (189-6224 m) in the Atlantic Sector of the Southern Ocean
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FIGURE 5 in Caudacalanus (Copepoda, Calanoida): a new benthopelagic genus from the abyss of the tropical South Atlantic and Southern Ocean *
FIGURE 5. Caudacalanus vicinus gen. et sp. nov. Female, holotype. A, antenna; B, mandible, gnathobase; C, mandible palp; D, maxillule, a, praecoxal arthrite; b, coxal epipodite; c, coxal endite; d, endopodite; e, exopodite; E, maxilla; F, maxilliped, detail of endopod from paratype; G, P1. Scale bars 0.1 mm.
FIGURE 3 in Caudacalanus (Copepoda, Calanoida): a new benthopelagic genus from the abyss of the tropical South Atlantic and Southern Ocean *
FIGURE 3. Caudacalanus mirus gen. et sp. nov. Female, holotype except F. A, antennule, articulated segments 1–11 (ancestral segments I–XIV), dotted setae are additions from paratype; B, antennule, articulated segments 12–20 (ancestral segments XV–XXIII); C, antennule, articulated segments 21–25 (ancestral segments XXIV–XXVIII); D, antennule, articulated segments 2325 (ancestral segments XXVI–XXVIII); E, P1; F, P1 (from paratype), terminal part of exopod segment 3; G, P2; H, P3; I, P4. Scale bars 0.1 mm.
FIGURE 4 in Caudacalanus (Copepoda, Calanoida): a new benthopelagic genus from the abyss of the tropical South Atlantic and Southern Ocean *
FIGURE 4. Caudacalanus vicinus gen. et sp. nov. Female. A, habitus, dorsal; B, habitus, lateral; C, rostrum, ventral; D, urosome, ventral; E, urosome, lateral; F, anal somite and caudal rami, dorsal; G, antennule, articulated segments 1–10 (ancestral segments I–XIII); H, articulated segments 11–16 (ancestral segments XIV–XIX); I, antennule, articulated segments 17–22 (ancestral segments XX–XXV); K, antennule, articulated segments 2325 (ancestral segments XXVI– XXVIII); L, P2; M, P3; N, P4. E from paratype, other figures, holotype, dotted setae are additions from paratype. Scale bars 0.1 mm.
FIGURE 1 in Caudacalanus (Copepoda, Calanoida): a new benthopelagic genus from the abyss of the tropical South Atlantic and Southern Ocean *
FIGURE 1. Caudacalanus mirus gen. et sp. nov. Female. A, habitus, dorsal; B, habitus, lateral; C, rostrum, lateral; D, rostrum, ventral; E, prosome, posterior corners, dorsal; F, urosome, dorsal; G, urosome, lateral; H, prosome, posterior corners and genital somite, dorsal; I, prosome, posterior corners and genital doublesomite, lateral; K, genital doublesomite, ventral. (C, E–G), paratype, other figures holotype. Scale bars 0.1 mm.
FIGURE 3 in Voragonema tatsunoko (Trachymedusae: Rhopalonematidae), a new species of benthopelagic medusa, host to the hyperiid amphipod Mimonectes spandli (Physosomata: Mimonectidae)
FIGURE 3. (A) Lateral view of the holotype of Voragonema tatsunoko [2K1337SS6g], collected at 15:18:15; scale: 1 mm. (B) detail of the bell margin of the paratype [2K1337SS6h], from the external surface showing the proximal part of the autotomized marginal tentacles superimposed in several rows together; scale: 1 mm.
FIGURE 2 in Voragonema tatsunoko (Trachymedusae: Rhopalonematidae), a new species of benthopelagic medusa, host to the hyperiid amphipod Mimonectes spandli (Physosomata: Mimonectidae)
FIGURE 2. Lateral views of the holotype of Voragonema tatsunoko [2K1337SS6g], collected at 15:18:15, under darkfield illumination (A) and transmitted light (B), and the paratype [2K1337SS6h] under transmitted light after removal of the parasitoid amphipod (C). Note the striations on the external surface of the exumbrella (A), reminiscent of those in Crossota rufobrunnea (Kramp, 1913); scale: 10 mm.
FIGURE 1 in Voragonema tatsunoko (Trachymedusae: Rhopalonematidae), a new species of benthopelagic medusa, host to the hyperiid amphipod Mimonectes spandli (Physosomata: Mimonectidae)
FIGURE 1. Specimen of Voragonema tatsunoko with the hyperiid amphipod Mimonectes spandli Stephensen and Pirlot, 1931 attached [paratype: 2K1337SS6h]. Specimen collected at 15:24:36 above muddy sediment in Suruga Bay at 1967 m depth on 7 April 2002 and photographed in an aquarium on board ship. Voragonema tatsunoko: lateral (A), apicolateral (B), and oral (C) views; scale: 10 mm.
FIGURE 6 in Additional morphological information on Dipteropeltis hirundo Calman, 1912, and a description of Dipteropeltis campanaformis n. sp. (Crustacea: Branchiura) from two characiform benthopelagic fish hosts from two Northern rivers of the Brazilian Amazon
FIGURE 6. Micrographs of an egg bearing female Dipteropeltis campanaformis n. sp. (Paratype, INPA 423i). Scanning electron micrographs. (A) Antennule and antenna. a = antenna, ant = antennule. (B) Triangular oval anterior respiratory area located on the ventral surface of the carapace. ar = anterior respiratory area. Dashed line drawn slightly outside of the structure, indicates the outline of the respiratory area. (C) Ovoid posterior respiratory area located on the ventral surface of the carapace. pr = posterior respiratory area. Dashed line drawn slightly outside of the structure, indicates the outline of the respiratory area. (D) Section of the membrane of the maxillule. z1 = zone 1, z2 = zone 2, z3 = zone 3. (E) Sucker zone 1 (z1) consisting of lineated rows of micro papillae. (F) Sucker zone 2 (z2) consisting of suctorial plates. (G) Sucker zone 3 (z3) consisting of a single ovoid, elongated discoidal scale. (H) Mouth. labi = labium, labr = labrum, lp = lateral protrusion, ls = labial spines, m = mandible. (I) Upper lip bearing the setules. labr = labrum, m = mandible, s = setules. (J) Left lateral protrusion of the upper lip bearing the left mandible. lp = lateral protrusion, m = mandible. (K) Tubular labial spines. ls = labial spines. (L) Setae of the internal dorsal surface of the mouth. (M) Light micrograph of the diminutive preoral structure. Dashed line drawn slightly outside of the structure, indicates the outline of the preoral structure, mx = maxillules, ps = preoral structure. Scanning electron micrographs. (N) Pectinate scales of the protrusion on the third segment of the maxillae. (O) Flattened spermathecal spine area sparsely scattered with coarse pectinate scales interspersed with setules. arrows = setules, ss = spermathecal spines, # = course pectinate scales. Scale bars: A, B, 100 µm; C, 500 µm; D, O, 20 µm; E, J, K, M, 10 µm; F, G, I, 5 µm; H, N, 50 µm; L, 2 µm.
FIGURE 4. Dipteropeltis campanaformis n in Additional morphological information on Dipteropeltis hirundo Calman, 1912, and a description of Dipteropeltis campanaformis n. sp. (Crustacea: Branchiura) from two characiform benthopelagic fish hosts from two Northern rivers of the Brazilian Amazon
FIGURE 4. Dipteropeltis campanaformis n. sp. Paratype female INPA 423i. (A) Dorsal view. ce = compound eye, ir = interocular rods, ne = nauplius eye. (B) Ventral view. ar = anterior respiratory area, ma = maxilla, mo = mouth, mx = maxillule, pr = posterior respiratory area, sp = spermatheca, Scale bars: A, B, 2 mm.
FIGURE 5. Dipteropeltis campanaformis n in Additional morphological information on Dipteropeltis hirundo Calman, 1912, and a description of Dipteropeltis campanaformis n. sp. (Crustacea: Branchiura) from two characiform benthopelagic fish hosts from two Northern rivers of the Brazilian Amazon
FIGURE 5. Dipteropeltis campanaformis n. sp. Paratype female INPA 423i. (A) The left antenna and antennule. a = antenna, ant = antennule. (B) The right maxillae. 1 = first segment, 2 = second segment, 3 = third segment, 4 = fourth segment, 5 = fifth segment, 6 = sixth segment. (C) The sixth segment of the right maxillae bearing 2 claws. (D) The first left leg. (E) The second left leg. (F) The third left leg. (G) The fourth left leg showing the natatory lobe. bp = basopodite, cx = coxa, en = endopodite, ex = exopodite, pc = precoxa, nl = natatory lobe. Scale bars: A, 20 µm; B, 200 µm; C, 10 µm; D–F, 500 µm; G, 200 µm.
FIGURE 3 in Additional morphological information on Dipteropeltis hirundo Calman, 1912, and a description of Dipteropeltis campanaformis n. sp. (Crustacea: Branchiura) from two characiform benthopelagic fish hosts from two Northern rivers of the Brazilian Amazon
FIGURE 3. Light micrographs of Dipteropeltis sp. (A) Dipteropeltis hirundo (Paratype, BMNH 1892.10.24.2). (B) Dipteropeltis campanaformis n. sp. (Holotype INPA 1934). Scale bars: A, B, 5 mm.
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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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.