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36 results for “Humboldt Current system”
Modeled temperature and Marine heatwaves intensity in the coastal Northern Humboldt Current System
<p>This dataset includes the tridimensional modeled temperature and associated research data that support the results of the article "<strong><em>Comprehensive characterization of Marine Heatwaves in a coastal Northern Humboldt Current System regional model over recent decades</em></strong>".</p> <p>Specifically, it consists of three files (NetCDF format):<br> i) Northern_MHWs.nc, this file contains the daily modeled temperature (from 2000 to 2019) within the northern domain of analysis (3-8°S) within the 250 km nearshore band for each vertical layer ranging from 0 to 250m depth. In addition, daily snapshots of MHW intensity are also included by depth.<br> ii) Central_MHWs.mat, similar to the previous file, but for the central domain of analysis, from 8 to 13°S.<br> iii) Southern_MHWs.mat, similar to the previous file, but for the southern domain of analysis, from 13 to 18°S.</p>
Monthly surface chlorophyll-a data and ENSO composites in the Northern Humboldt Current System
<p>This dataset comprises monthly maps of surface chlorophyll-a concentrations derived from the ESACCI-OC product, covering the region between 0-20°S and 70-90°W at a high spatial resolution of 4 km. In addition to the raw chlorophyll-a data, the dataset includes ENSO phase composites—monthly climatologies that characterize typical conditions during El Niño, La Niña, and ENSO-neutral phases. These composites provide valuable insights into the variability and trends in ocean productivity associated with different ENSO conditions, offering a comprehensive view of the temporal and spatial patterns of chlorophyll-a in the study area.</p>
FIGURE 1 in Beroe gracilis (Ctenophora) from the Humboldt Current System: first occurrence of this species in the southern hemisphere
FIGURE 1. Beroe gracilis Künne, 1939: preserved specimen from Dichato, Chile (ZooTaxa Millennium Institute of Oceanography collection, ZOOTIMO201401). View of whole specimen in stomodeal plane. Legend: cc, circular canal; mo, mouth; pc, paragastric canal; sscr, substomodeal ctene row; stcr, subtentacular ctene row; stmc, subtentacular meridional canal.
FIGURE 32 in Sabellid worms from the Patagonian Shelf and Humboldt Current System (Annelida, Sabellidae): Phyllis Knight-Jones' and José María Orensanz's collections
FIGURE 32. Distribution of some sabellid species in South America. A) Myxicola sulcata Ehlers, 1912, B) Notaulax tilosaula (Schmarda, 1861) (star) and Notaulax salazari sp. nov. (circle), C) Parasabella columbi (Kinberg, 1867) (circles) and Parasabella yonowae sp. nov. (star denotes type locality and triangle indicates additional records).
FIGURE 30 in Sabellid worms from the Patagonian Shelf and Humboldt Current System (Annelida, Sabellidae): Phyllis Knight-Jones' and José María Orensanz's collections
FIGURE 30. Pseudopotamilla knightjonesae sp. nov. A) Tubes, B) boring worms, C) posterior end, D) thoracic paleate notochaeta, E) abdominal elongate broadly hooded neurochaetae, F–H) thoracic companion chaetae and uncini, I) abdominal uncini. Scale bars: A 1.2 mm, B 2 mm, C 0.4 mm, D, E 20 µm, F–I 30 µm. Specimens: A–C paratypes, UANL 8112, D–I holotype, UANL 8111.
FIGURE 29 in Sabellid worms from the Patagonian Shelf and Humboldt Current System (Annelida, Sabellidae): Phyllis Knight-Jones' and José María Orensanz's collections
FIGURE 29. Pseudopotamilla knightjonesae sp. nov. A) Branchial crown, dorsal view, B) radiolar eyes and collar, dorsal view, C) radiolar tip, D) branchial crown and collar, dorsal view. Arrows in A and B point to radiolar eyes. Scale bars: A, B 0.6 mm, C 0.1 mm, D 0.6 mm. Abbreviation: apr anterior peristomial ring. Stain: A, B Shirla. Specimens: A, B, D paratypes, UANL 8112, C holotype, UANL 8111.
FIGURE 28 in Sabellid worms from the Patagonian Shelf and Humboldt Current System (Annelida, Sabellidae): Phyllis Knight-Jones' and José María Orensanz's collections
FIGURE 28. Pseudopotamilla knightjonesae sp. nov. A) Anterior thoracic segments and branchial crown, dorsal view, B) same, ventral view, C, D) same, lateral view. Scale bars: A, B 1.3 mm, C, D 0.6 mm. Abbreviations: apr anterior peristomial ring, df dorsal flange, vf ventral flange, vsc ventral shield of chaetiger 1. Stain: A–D Shirla. Specimens: A, B, D holotype, UANL 8111, C paratype, UANL 8112.
FIGURE 27 in Sabellid worms from the Patagonian Shelf and Humboldt Current System (Annelida, Sabellidae): Phyllis Knight-Jones' and José María Orensanz's collections
FIGURE 27. Pseudopotamilla platensis (Hartman, 1953). A) Thoracic paleate notochaetae, B) thoracic uncini and companion chaetae, C) detail of companion chaeta, D) abdominal broadly hooded neurochaetae, E) abdominal uncini. Scale bars: A, D 20 µm, B, C, E 30 µm. Specimen: A–E UANL 8108.
FIGURE 26 in Sabellid worms from the Patagonian Shelf and Humboldt Current System (Annelida, Sabellidae): Phyllis Knight-Jones' and José María Orensanz's collections
FIGURE 26. Pseudopotamilla platensis (Hartman, 1953). A) Radiole, B) dorsal lip, C) ventral lip, D, E) posterior end, ventral and dorsal view, respectively. Scale bars: A 0.5 mm, B, C 0.7 mm, D, E 1.4 mm. Abbreviations: dl dorsal lip; vl ventral lip. Stain: A–C Shirla. Specimen: A–E UANL 8106.
FIGURE 25 in Sabellid worms from the Patagonian Shelf and Humboldt Current System (Annelida, Sabellidae): Phyllis Knight-Jones' and José María Orensanz's collections
FIGURE 25. Pseudopotamilla platensis (Hartman, 1953). A–C) Anterior thoracic segments and base of branchial crown, dorsal view, D) same, ventral view showing basal flanges in arrows, E) same, lateral view, F) bi-annulate condition of thoracic glandular shields, G) chaetiger 2 and dorsal glandular shield, H) compound eyes in dorsal radioles (arrows), I) detail of compound eye. Scale bars: A–D, F 1.6 mm, E)1.3 mm, G 0.5 mm, H 0.3 mm, I 0.15 mm. Abbreviations: apr anterior peristomial ring, dgs dorsal glandular shields, vsc ventral shield of chaetiger 1. Stain: D methyl green. Specimen: A–I UANL 8108.
FIGURE 33 in Sabellid worms from the Patagonian Shelf and Humboldt Current System (Annelida, Sabellidae): Phyllis Knight-Jones' and José María Orensanz's collections
FIGURE 33. Distribution of some sabellid species in South America. A) Perkinsiana antarctica (Kinberg, 1867), B) Perkinsiana assimilis (McIntosh, 1885), C) Pseudopotamilla platensis (Hartman, 1953) (circles) and P. knightjonesae sp. nov., (star denotes type locality).
FIGURE 24 in Sabellid worms from the Patagonian Shelf and Humboldt Current System (Annelida, Sabellidae): Phyllis Knight-Jones' and José María Orensanz's collections
FIGURE 24. Perkinsiana magalhaensis (Kinberg, 1867). A) Thoracic paleate notochaetae, B) thoracic elongate narrowly hooded notochaeta, C) companion chaeta, D) abdominal uncini, E) posterior end, F) abdominal neurochaetae. Scale bars: A, C 20 µm, B 100 µm, D 30 µm, E 2 mm, F 50 µm. Specimens: A–F UANL 8087.
FIGURE 23 in Sabellid worms from the Patagonian Shelf and Humboldt Current System (Annelida, Sabellidae): Phyllis Knight-Jones' and José María Orensanz's collections
FIGURE 23. Perkinsiana magalhaensis (Kinberg, 1867). A, B) Radiolar tips, C) dorsal lip, D) base of branchial crown, ventral view, E) ventral lip, F) base of branchial crown, left side, G) transversal section of the abdomen. Arrows in A and F indicating flanges. Scale bars: A, B 0.5 mm, C, D 1 mm, E 0.7 mm, F 0.3 mm, G 1.5 mm. Abbreviations: d dorsal, dl dorsal lip, dmp dorsal muscle bundle, g gut, v ventral, vl ventral lip, vmp ventral muscular package. Stain: C, G methyl green. Specimens: A, F UANL 8087, B–E, G UANL 8093–8097.
FIGURE 21 in Sabellid worms from the Patagonian Shelf and Humboldt Current System (Annelida, Sabellidae): Phyllis Knight-Jones' and José María Orensanz's collections
FIGURE 21. Perkinsiana assimilis (McIntosh, 1885). A) Thoracic noto- and neurochaetae, B) thoracic uncini, C) thoracic paleate notochaetae, D) abdominal neurochaetae, E) companion chaetae, F) abdominal uncini. Scale bars: A, D 100 µm, B, F 30 µm, C 20 µm, E 10 µm. Specimen: A–F UANL 8078.
FIGURE 19 in Sabellid worms from the Patagonian Shelf and Humboldt Current System (Annelida, Sabellidae): Phyllis Knight-Jones' and José María Orensanz's collections
FIGURE 19. Perkinsiana assimilis (McIntosh, 1885). A) Anterior thoracic segments, dorsal view, B) same, ventral view, C) same, lateral view, D) anterior peristomial ring, dorsal view, E) Collar, ventral view, F) anterior peristomial ring and faecal groove, G) posterior end, H) entire body. Scale bars: A, B, D 3 mm, C 2.5 mm, E, F 1.5 mm, G 2 mm, H 5 mm. Abbreviations: apr anterior peristomial ring, fg faecal groove, vs ventral sacs, vsc ventral shield of chaetiger 1. Specimen: A–H UANL 8078.
FIGURE 31 in Sabellid worms from the Patagonian Shelf and Humboldt Current System (Annelida, Sabellidae): Phyllis Knight-Jones' and José María Orensanz's collections
FIGURE 31. Distribution of some sabellid species in South America. A) Chone orensanzi sp. nov., B) Jasmineira crumenifera Hartmann-Schröder, 1986, C) Acromegalomma schwindtae sp. nov. (star denotes type locality).
FIGURE 22 in Sabellid worms from the Patagonian Shelf and Humboldt Current System (Annelida, Sabellidae): Phyllis Knight-Jones' and José María Orensanz's collections
FIGURE 22. Perkinsiana magalhaensis (Kinberg, 1867). A, C) Collar and anterior thoracic segments, dorsal view, B, D) same, ventral view, E) peristomium and parallel lamellae, apical view, branchial lobes removed, F) collar and anterior thoracic segments, lateral view. Arrows in B and E point to parallel lamellae. Scale bars: A–D 1.5 mm, E 1 mm, F 0.7 mm. Abbreviations: apr anterior peristomial ring, d dorsal, fg faecal groove, v ventral, vsc ventral shield of chaetiger 1. Stain: D, E methyl green. Specimens: A, B, F UANL 8087, C–E UANL 8093–8097.
FIGURE 17 in Sabellid worms from the Patagonian Shelf and Humboldt Current System (Annelida, Sabellidae): Phyllis Knight-Jones' and José María Orensanz's collections
FIGURE 17. Perkinsiana antarctica (Kinberg, 1867). A) Body, ventral view, B) anterior end, dorsal view, C, same, lateral view, D, E) same, ventral views, F) dorsal and ventral lips (left branchial lobe removed), G, H) radioles. Arrows in E indicate ventral sacs. Scale bars: A, B, D, E 2.5 mm, C 2 mm, F, G 1 mm, H 0.5 mm. Abbreviations: apr anterior peristomial ring, dl dorsal lip, vl ventral lip, vsc ventral shield of chaetiger 1. Stain: A–G methyl green, H unstained radiole. Specimen: A–H UANL 8075.
FIGURE 16 in Sabellid worms from the Patagonian Shelf and Humboldt Current System (Annelida, Sabellidae): Phyllis Knight-Jones' and José María Orensanz's collections
FIGURE 16. Parasabella yonowae sp. nov. A) Base of branchial crown, B) mid-radiolar region, C) radiolar tip and flanges, D) detail of radiolar flange, E) thoracic notochaetae, F) inferior, narrowly hooded thoracic notochaetae, G) abdominal neurochaetae, H) thoracic uncini, I) companion chaetae. Arrows in B–D point to radiolar flanges. Scale bars: A 1 mm, B 0.4 mm, C, D 0. 1 mm, E–G 100 µm, H, I 10 µm. Specimen: A–I holotype, UANL 8069.
FIGURE 15 in Sabellid worms from the Patagonian Shelf and Humboldt Current System (Annelida, Sabellidae): Phyllis Knight-Jones' and José María Orensanz's collections
FIGURE 15. Parasabella yonowae sp. nov. A, B) Collar and anterior thoracic segments, dorsal view, C) same, lateral view, D, E) same, ventral view, F) dorsal lip, radioles, and parallel lamellae. Arrows in D and F point to parallel lamellae. Scale bars: A, B, D 2.5 mm, C, E 1 mm, E 1 mm, F 2 mm. Abbreviations: dl dorsal lip, vsc ventral shield of chaetiger 1. Stain: A–E methyl green. Specimens: A, D, F holotype, UANL 8069, B, C, E paratype, UANL 8070.
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