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971 results for “Southwestern Atlantic”
Figure 3 in A new species and record of Biancolina Della Valle, 1893 (Amphipoda, Senticaudata, Ampithoidae) from the Southwestern Atlantic
Figure 3. Biancolina suassunai sp. nov. Paratype, female, 16 July 2018, Praia do Paraíso, Suape Bay, Pernambuco (08°21′23.178″S, 34°57′06.386″W), MOUFPE 19605. Scale bars = 0.1 mm.
Figure 5 in First record and a new species of Euphrosynoplax (Crustacea: Pseudorhombilidae) from the southwestern Atlantic
Figure 5. (A, D) Euphrosynoplax clausa Guinot, 1969. (A, B) Habitus, dorsal and ventral view, respectively, holotype male, cl 24 mm, cw 33 mm (USNM 65938). (C, D) Anterior cephalothorax and right cheliped in lateral view, male, cl 11 mm, cw 21 mm (USNM 250197). Scales: A-C, 10 mm; D, 0.5 mm.
Figure 3 in First record and a new species of Euphrosynoplax (Crustacea: Pseudorhombilidae) from the southwestern Atlantic
Figure 3. (A-E) First male gonopod in lateral (A-C) and mesial view (D, E). F, Second male gonopod in mesial view. (A, B, F) Euphrosynoplax dincao sp. nov., holotype, cl 48.5 mm, cw 54 mm (MZUSP 25998). (B, E) Euphrosynoplax campechiensis Vázquez-Bader & Gracia, 1991, cl 22 mm, cw 31 mm (USNM 298320). (C) Euphrosynoplax clausa Guinot, 1969, holotype, cl 24 mm, cw 33 mm (USNM 65938) after Guinot (1969: 715, fig. 127). ap, apical lobe. ml, mesial lobe. Scales: 1 mm.
Figure 4 in First record and a new species of Euphrosynoplax (Crustacea: Pseudorhombilidae) from the southwestern Atlantic
Figure 4. (A, D) Euphrosynoplax campechiensis Vázquez-Bader & Gracia, 1991, male, cl 24 mm, cw 32 mm (USNM 267608). (A, B) Habitus in dorsal and ventral view, respectively. (C) Anterior cephalothorax. (D) Left cheliped in lateral view. Scales: 10 mm.
Figure 2 in First record and a new species of Euphrosynoplax (Crustacea: Pseudorhombilidae) from the southwestern Atlantic
Figure 2. (A-F) Habitus and carapace in dorsal view.(A, B) Euphrosynoplax dincao sp. nov., holotype male, cl 48.5 mm, cw 54 mm (MZUSP 25998). (C, D) Euphrosynoplax campechiensis Vázquez-Bader & Gracia, 1991, male, cl 24 mm, cw 32 mm (USNM 267608). (E, F) Euphrosynoplax clausa Guinot, 1969, male, cl 11 mm, cw 21 mm (USNM 250197). Arrows indicate the last (fourth) anterolateral carapace tooth. Note in (B) area behind the supraorbital margin distinctly granular and devoid of granules in (C, D). Pubescence not represented behind the supraorbital margin in (D). Note in (F) carapace appearing almost smooth to unaided eyes but provided with minute granules. Scales: 10 mm.
Figure 1 in First record and a new species of Euphrosynoplax (Crustacea: Pseudorhombilidae) from the southwestern Atlantic
Figure 1. (A-E) Euphrosynoplax dincao sp. nov., holotype male, cl 48.5 mm, cw 54 mm (MZUSP 25998). (A, B) Habitus in dorsal and ventral view, respectively. (C) Anterior cephalothorax. Legs cropped electronically. (D, E) Right and left chelipeds, respectively, in lateral view. Scales: 15 mm.
TimeFISH: Long-term assessment of reef fish assemblages in a transition zone in the Southwestern Atlantic
<p>The TimeFish database provides the first public time-series dataset on reef fish assemblages in the Southwestern Atlantic (SWA), comprising 15 years of data (2007-2022) based on standardized Underwater Visual Censuses (UVCs). The rocky reefs covered by our dataset are influenced by pronounced seasonal cycles of ocean temperatures with warm tropical waters from the Brazil Current in the summer (~27°C) and colder waters from the La Plata River Plume discharge and upwelling from the South Atlantic Central Water in the winter (~18°C). These oceanographic conditions characterize this area as the southernmost tropical-subtropical climatic transition zone in the Atlantic Ocean. As a result, reef fish assemblages comprise both tropical and subtropical species. All records included in TimeFish were collected using UVCs, a non-destructive method that allows the estimation of fish species richness, abundance, and body size distributions. UVCs were performed through 40 m2 belt transects by scuba diving in nine locations along the southern Brazilian coast (25°S – 29°S). Four of these locations lie within the boundaries of the no-entry Arvoredo Marine Biological Reserve, where fishing and recreational activities are forbidden, and the remaining locations are unprotected from these activities. During each belt transect, a diver swam at a constant depth above and parallel to the reef, identifying fish species, counting the number of individuals, and estimating the total body length (Lt in cm) of all detected individuals. All fish individuals in the water column (up to 2 m above the substratum) and at the bottom were targeted. A total of 202,965 individuals belonging to 163 reef fish species and 53 families were recorded across 1,857 UVCs. All survey campaigns were funded by either public or mixed capital (private-public) sources, including seven grants from the Brazilian federal and Santa Catarina state government. Part of the data have already been used in multiple MSc and Ph.D. theses and scientific articles. TimeFISH represents an important contribution for future studies aiming to examine temporal and spatial variations of reef fish assemblages in transition zones. No copyright restrictions apply to the use of this data set, other than citing this publication.</p>
FIGURE 26 in Four new species of Pseudharpinia Schellenberg, 1931 (Crustacea: Amphipoda Phoxocephalidae) from southwestern Atlantic and new records of P. tupinamba Senna & Souza-Filho, 2011
FIGURE 26. Distribution of P. tupinamba. Circle: previous record of the species; Star: new records of the species.
FIGURE 25 in Four new species of Pseudharpinia Schellenberg, 1931 (Crustacea: Amphipoda Phoxocephalidae) from southwestern Atlantic and new records of P. tupinamba Senna & Souza-Filho, 2011
FIGURE 25. Pseudharpinia tupinamba Senna & Souza-Filho, 2011, female, UERJ 458, São Paulo state coast (24°58'S, 45°26'W), Brazil. Scale bars: 0.2 mm for A1–2; 0.5 mm for the remainings.
FIGURE 21 in Four new species of Pseudharpinia Schellenberg, 1931 (Crustacea: Amphipoda Phoxocephalidae) from southwestern Atlantic and new records of P. tupinamba Senna & Souza-Filho, 2011
FIGURE 21. Pseudharpinia planti sp. nov. Holotype, female, UERJ 455, Rio de Janeiro state coast (23°03'S, 42°19'W), Brazil; paratype, male, UERJ 456, same data as for the holotype. Scale bars: 0.5 mm for mG1–2; 0.3 mm for the remainings.
FIGURE 22 in Four new species of Pseudharpinia Schellenberg, 1931 (Crustacea: Amphipoda Phoxocephalidae) from southwestern Atlantic and new records of P. tupinamba Senna & Souza-Filho, 2011
FIGURE 22. Pseudharpinia planti sp. nov. Holotype, female, UERJ 455, Rio de Janeiro state coast (23°03'S, 42°19'W), Brazil. Scale bars: 0.5 mm.
FIGURE 17 in Four new species of Pseudharpinia Schellenberg, 1931 (Crustacea: Amphipoda Phoxocephalidae) from southwestern Atlantic and new records of P. tupinamba Senna & Souza-Filho, 2011
FIGURE 17. Pseudharpinia pagei sp. nov. Holotype, female, UERJ 454, Rio de Janeiro state coast (23°53'S, 42°28'W), Brazil. Scale bars: 0.1 mm for T; 0.3 mm for the remainings.
FIGURE 15 in Four new species of Pseudharpinia Schellenberg, 1931 (Crustacea: Amphipoda Phoxocephalidae) from southwestern Atlantic and new records of P. tupinamba Senna & Souza-Filho, 2011
FIGURE 15. Pseudharpinia pagei sp. nov. Holotype, female, UERJ 454, Rio de Janeiro state coast (23°53'S, 42°28'W), Brazil. Scale bars: 0.3 mm.
FIGURE 6 in Four new species of Pseudharpinia Schellenberg, 1931 (Crustacea: Amphipoda Phoxocephalidae) from southwestern Atlantic and new records of P. tupinamba Senna & Souza-Filho, 2011
FIGURE 6. Pseudharpinia jonesyi sp. nov. Holotype, female, UERJ 444, Santa Catarina state coast (26°34'S, 47°59'W), Brazil; paratype, male, UERJ 445, same data as for the holotype. Scale bars: 1.0 mm.
FIGURE 7 in Four new species of Pseudharpinia Schellenberg, 1931 (Crustacea: Amphipoda Phoxocephalidae) from southwestern Atlantic and new records of P. tupinamba Senna & Souza-Filho, 2011
FIGURE 7. Pseudharpinia jonesyi sp. nov. Holotype, female, UERJ 444, Santa Catarina state coast (26°34'S, 47°59'W), Brazil; paratype, male, UERJ 445, same data as for the holotype. Scale bars: 0.5 mm for fHd; 0.2 mm for the remainings.
FIGURE 9 in Four new species of Pseudharpinia Schellenberg, 1931 (Crustacea: Amphipoda Phoxocephalidae) from southwestern Atlantic and new records of P. tupinamba Senna & Souza-Filho, 2011
FIGURE 9. Pseudharpinia jonesyi sp. nov. Holotype, female, UERJ 444, Santa Catarina state coast (26°34'S, 47°59'W), Brazil; paratype, male, UERJ 445, same data as for the holotype. Scale bars: 0.2 mm.
FIGURE 5 in Four new species of Pseudharpinia Schellenberg, 1931 (Crustacea: Amphipoda Phoxocephalidae) from southwestern Atlantic and new records of P. tupinamba Senna & Souza-Filho, 2011
FIGURE 5. Pseudharpinia bonhami sp. nov. Holotype, female, UERJ 441, São Paulo state coast (24°58'S, 45°26'W), Brazil. Scale bars: 0.1 mm for T; 0.2 mm for the remainings.
FIGURE 3 in Four new species of Pseudharpinia Schellenberg, 1931 (Crustacea: Amphipoda Phoxocephalidae) from southwestern Atlantic and new records of P. tupinamba Senna & Souza-Filho, 2011
FIGURE 3. Pseudharpinia bonhami sp. nov. Holotype, female, UERJ 441, São Paulo state coast (24°58'S, 45°26'W), Brazil. Scale bars: 0.5 mm.
Evaluating the boundaries of marine biogeographic regions of the Southwestern Atlantic using halacarid mites (Halacaridae), meiobenthic organisms with a low dispersal potential
<p>Aim</p> <p>We evaluated traditional biogeographic boundaries of coastal marine regions in SW Atlantic using DNA sequence data from common, rocky-shore inhabiting, marine mites of the genera <i>Agauopsis</i> and <i>Rhombognathus,</i> family Halacaridae.</p> <p>Methods</p> <p>We investigated geographic population genetic structure using CO1 gene sequences, estimated divergence times using a multigene dataset and absolute time-calibrated molecular clock analyses, and performed environmental niche modeling (ENM) of common marine mite species.</p> <p>Results</p> <p><i>Agauopsis legionium</i> has a shallow history (2.01 Ma) with four geographically differentiated groups. Two of them corresponded to the traditional Amazonian and Northeastern ecoregions, but the boundary between the two other groups was inferred at the Abrolhos Plateau, not Cabo Frio. <i>Rhombognathus levigatoides </i>s. lat. was represented by two cryptic species that diverged 7.22 (multilocus data) or 10.01 Ma (CO1-only analyses), with their boundary, again at the Abrolhos Plateau. ENM showed that <i>A. legionium</i> has suitable habitats scattered along the coast, while the two <i>R. levigatoides </i>cryptic species differ considerably in their niches, especially in parameters related to upwelling. This indicates that genetic isolation associated with the Abrolhos Plateau occurred in both lineages, but for the <i>R. levigatoides </i>species complex, ecological niche specialization was also an important factor.</p> <p>Main conclusions</p> <p>Our study suggests that the major biogeographic boundary in the Southwestern Atlantic lies not at Cabo Frio but at the Abrolhos Plateau. There, two biogeographically relevant factors meet: (i) changes in current directions (which limit dispersal) and (ii) abrupt changes in environmental parameters associated with the South Atlantic Central Waters (SACW) upwelling (offering distinct ecological niches). We suggest that our result represents a general biogeographic pattern because a barrier at the Abrolhos Plateau was found previously for the fish genus <i>Macrodon </i>(phylogeographic data), prosobranch mollusks, ascidians, and reef fishes (community-level data).</p>
FIGURE 8 in Three new species of Aricidea (Acmira) (Annelida: Paraonidae) from the Continental Shelf of Eastern Brazil, Southwestern Atlantic
FIGURE 8. Holotype of Aricidea (Acmira) bbkingi sp. nov. A, anterior region, dorsal view; B, prostomium of a paratype, dorsal view; C, largest branchiae; D, parapodium of postbranchiate region, lateral view; E, neuropodium of mid-body.
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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)
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.