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374 results for “East Pacific”
FIGURE 12 in Sponges from Clipperton Island, East Pacific
FIGURE 12. Johannesia sp., undetermined specimen MNHN DCL 4042–C, A. habit encrusting a dead coral, B. light microscopic overview of spicules, scale bar = 100 µm, C. oxea and detail of apex, D. (sub-)tylostyle and detail of head.
FIGURE 14 in Sponges from Clipperton Island, East Pacific
FIGURE 14. Haliclona (Gellius) violacea (De Laubenfels, 1950), specimen USNM 22658, A. habit, originally identified as Haliclona enamela De Laubenfels, 1930 by De Laubenfels (1939), B. light microscopic view of surface skeleton showing unispicular arrangement of the spicules, scale bar = 100 µm, C. oxeas, D. toxas.
FIGURE 17. Suberea etiennei n in Sponges from Clipperton Island, East Pacific
FIGURE 17. Suberea etiennei n. sp. A. one of the paratypes MNHN DCL 4053–F, habit encrusting a coral, B. fiber of the same, scale bar = 100 µm, C. fiber detail of holotype CASIZ 180255, scale bar = 50 µm.
FIGURE 1 in Morphological variability of Bathybdella sawyeri (Hirudinida: Piscicolidae) from hydrothermal vents on the Galápagos Rift and the South East Pacific Rise.
FIGURE 1. Map of collection sites (open circles) on the Galápagos Rift and South East Pacific Rise and the known distribution of B. sawyeri (closed circles).
FIGURES 23. Bathybdella sawyeri. 2 in Morphological variability of Bathybdella sawyeri (Hirudinida: Piscicolidae) from hydrothermal vents on the Galápagos Rift and the South East Pacific Rise.
FIGURES 23. Bathybdella sawyeri. 2: specimens from Oasis showing lack of pigmentation and the gut full of blood, ventral view. 3: specimen from Pagoda taken from the crab Cyanagraea praedator, lateral view. o, oral sucker. Scale bars = 2.0 mm.
Distribution. Russian Far East in Sakhalin I, Sikhote-Alin Mts, and Ussuri River Basin, and along Pacific coast in Khabarovsk and Primorsky krais (including Russkiy I in Peter the Great Gulf), NE China (Heilongjiang and Jilin), and N Korea (N Ryanggang and NW South Hamgyong). in Sminthidae
Distribution. Russian Far East in Sakhalin I, Sikhote-Alin Mts, and Ussuri River Basin, and along Pacific coast in Khabarovsk and Primorsky krais (including Russkiy I in Peter the Great Gulf), NE China (Heilongjiang and Jilin), and N Korea (N Ryanggang and NW South Hamgyong).
Subspecies and Distribution. P.v.vitulinaLinnaeus,1758—NEAtlanticOceanincludingSvalbardStoNWFrance(Brittany),withoccasionalsightingsasfarSasNPortugal;Wboundaryuncertain,perhapsIceland. P.v.concolorDeKay,1842—NWAtlanticOcean,frommid-AtlanticUSAtotheCanadianArcticandEtoGreenland;Eboundaryuncertain,perhapsIceland. P. v. richardGray, 1864 — NE Pacific Ocean, from Aleutian Is through the Gulf of Alaska (including Iliamna Lake) S to the coast of Baja California (N Mexico); contact zone with stejnegert may occur in W Alaska Peninsula-E Aleutian Is. P. v. stejnegeri Allen, 1902 — NW Pacific Ocean along the coast of Russian Far East, from Kamchatka, the Kuril Is to N Japan (Hokkaido) and E to the Aleutian Is; contact zone with richardii may occur in E Aleutian Is—W Alaska Peninsula. in Phocidae
Subspecies and Distribution. P.v.vitulinaLinnaeus,1758—NEAtlanticOceanincludingSvalbardStoNWFrance(Brittany),withoccasionalsightingsasfarSasNPortugal;Wboundaryuncertain,perhapsIceland. P.v.concolorDeKay,1842—NWAtlanticOcean,frommid-AtlanticUSAtotheCanadianArcticandEtoGreenland;Eboundaryuncertain,perhapsIceland. P. v. richardGray, 1864 — NE Pacific Ocean, from Aleutian Is through the Gulf of Alaska (including Iliamna Lake) S to the coast of Baja California (N Mexico); contact zone with stejnegert may occur in W Alaska Peninsula-E Aleutian Is. P. v. stejnegeri Allen, 1902 — NW Pacific Ocean along the coast of Russian Far East, from Kamchatka, the Kuril Is to N Japan (Hokkaido) and E to the Aleutian Is; contact zone with richardii may occur in E Aleutian Is—W Alaska Peninsula.
Severe drought conditions in northern East Asia during the early Pliocene caused by weakened Pacific meridional temperature gradient
<p>The evolution of hydroclimate in East Asia during the Pliocene – a potential analogue of the future greenhouse climate – remains highly uncertain. Here we reconstruct changes in the hydroclimate of Northern China during this epoch. Our results reveal previously undocumented severe drought conditions that persisted through the early Pliocene with a significantly greater magnitude than suggested by other records. Using a broad hierarchy of climate simulations, we find that reduction in the Pacific meridional sea surface temperature gradient has particularly strong impacts on precipitation over Northern China, which suggests its key role in maintaining drought conditions during the early Pliocene. The weaker Pacific meridional SST gradient causes the weakening of the East Asian summer monsoon precipitation over this region via a reduction of atmospheric northward moisture transport from the ocean, which enhances aridity inland. Our results highlight the fundamental control of the tropical ocean on the extra-tropical hydrological cycle.</p>
Distribution. Endemic to several Pacific islands of Russian Far East and Japan: C & S Sakhalin, Hokkaido (including Rebun and Rishiri), and Kurils (Kunashir, Zelionyi, and Shikotan). in Cricetidae
Distribution. Endemic to several Pacific islands of Russian Far East and Japan: C & S Sakhalin, Hokkaido (including Rebun and Rishiri), and Kurils (Kunashir, Zelionyi, and Shikotan).
Data using in "Moored observations of the North Pacific deep western boundary current east of the Gagua Ridge"
<p>Data on manuscript entitled "Moored observations of the North Pacific deep western boundary current east of the Gagua Ridge" in Matlab format. Details about the variables in the mat files are described in Readme.txt.</p>
FIGURE 2 in Two new species of Sympagella (Porifera: Hexactinellida: Rossellidae) collected from the Clarion-Clipperton Zone, East Pacific
FIGURE 2. Sympagella abysslineae sp. nov. (SMF 12104) a. Shape of the body as observed in situ (13.5 cm). b. Large smooth hexactin (300 µm). c./d. Pinular hexactin (100 µm). e. Pinular pentactin (100 µm). f. Discohexaster (30 µm). g./h. Strobiloplumicome (10 µm). i. Specimen's upper surface viewed from above (5 cm) (Photo provided by A. Glover, T. Dahlgren and H. Wiklund, Natural History Museum and Uni Research).
FIGURE 1 in Two new species of Sympagella (Porifera: Hexactinellida: Rossellidae) collected from the Clarion-Clipperton Zone, East Pacific
FIGURE 1. Map of the investigated area and the sampling stations (RV01 and EPRIB) within the UKSRL exploration contract area (UK-1) of the Clarion-Clipperton Zone, East Pacific (for further explanation, see Methods)
FIGURE 3 in Two new species of Sympagella (Porifera: Hexactinellida: Rossellidae) collected from the Clarion-Clipperton Zone, East Pacific
FIGURE 3. Sympagella clippertonae sp. nov. (SMF 12105) a. Shape of the body and stalk as observed in situ (20 cm). b. Large spiny pentactin (300 µm). c. Smaller pentactin with small spines (100 µm). d/e. Discohexaster (30 µm). f. Large spiny hexactin (center, surrounded by smaller spicules) (400 µm). g. Pinular pentactin (30 µm). h. Strobiloplumicome (10 µm).
FIGURE 8 in Description and molecular phylogeny of Axinella nayaritensis n. sp. (Porifera: Axinellida) from East Pacific and remarks about the polyphyly of the genus Axinella
FIGURE 8. Consensus tree of genus Axinella using Maximum Likelihood and Bayesian method based on COI mtDNA. Bootstrap values/posterior probabilities (ML/BI) are indicated above the principal node. The clades of Axinella proposed by Gazave et al. 2010 are and labelled as AXI1, AXI 2 and AXI 3. Taxon names are followed by their GenBank accession numbers. Indicate the new species belonging to the Axinella genus.
FIGURE 7 in Description and molecular phylogeny of Axinella nayaritensis n. sp. (Porifera: Axinellida) from East Pacific and remarks about the polyphyly of the genus Axinella
FIGURE 7. Consensus tree of genus Axinella using Maximum Likelihood and Bayesian methods based on 18S rDNA. Bootstrap values/posterior probabilities (ML/BI) are indicated under the principal node. The clades of Axinella proposed by Gazave et al. 2010 are shaded and labelled as AXI I, AXI 2 and AXI 3. Taxon names are followed by their GenBank accession numbers. Indicates the new species belonging to the Axinella genus.
FIGURE 3. Axinella nayaritensis n in Description and molecular phylogeny of Axinella nayaritensis n. sp. (Porifera: Axinellida) from East Pacific and remarks about the polyphyly of the genus Axinella
FIGURE 3. Axinella nayaritensis n. sp. Dry specimen collected from Nayarit A) Preserved specimen where the ectosomal membrane is collapsed. B) Detail of a branch of A) where is clearly observable the ridge surface and the subectosomic canals.
FIGURE 2. Axinella nayaritensis n in Description and molecular phylogeny of Axinella nayaritensis n. sp. (Porifera: Axinellida) from East Pacific and remarks about the polyphyly of the genus Axinella
FIGURE 2. Axinella nayaritensis n. sp. in situ at isla Isabel. A) Holotype at 24 m depth. Black arrows show oscules, and white arrows subectosomic canals. B), C, D) different growth forms and stages of growth (white arrows) found between 21 and 25 m depth.
FIGURE 4. Axinella nayaritensis n in Description and molecular phylogeny of Axinella nayaritensis n. sp. (Porifera: Axinellida) from East Pacific and remarks about the polyphyly of the genus Axinella
FIGURE 4. Axinella nayaritensis n. sp. skeleton of a branch to SEM. A) Cross section where is clearly distinguishable a dense central axial condensation skeleton from which radiate to the surface an extra axial plumoreticulated skeleton. B) Detail of the area of transition to central axial condensation and the plumoreticulated area. C) Extra axial skeleton in the sponge surface where can be observable spicule brushes (D, E).
FIGURE 18. Clathrina passionensis n in Sponges from Clipperton Island, East Pacific
FIGURE 18. Clathrina passionensis n. sp., holotype CASIZ 180256, A. habit encrusting a specimen of Spongia (Spongia) sweeti, scale bar = 1 cm, B and C. details of surface, scale bar = 100 µm, D. triactine, E. tetractine.
FIGURE 17. Suberea etiennei n in Sponges from Clipperton Island, East Pacific
FIGURE 17. Suberea etiennei n. sp. A. one of the paratypes MNHN DCL 4053–F, habit encrusting a coral, B. fiber of the same, scale bar = 100 µm, C. fiber detail of holotype CASIZ 180255, scale bar = 50 µm.
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
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