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538 results for “Eastern Atlantic”
FIGURE 2 in Three new species of Aricidea (Acmira) (Annelida: Paraonidae) from the Continental Shelf of Eastern Brazil, Southwestern Atlantic
FIGURE 2. SEM of Aricidea (Acmira) filamentosa sp. nov. A, Anterior region, lateral view; B, prostomium, lateral view; C–E, branchiate region, lateral view; F, posterior parapodia, lateral view; G, posterior region with pygidium, anal cirri missing.
Data from: Population structure in Atlantic cod in the eastern North Sea-Skagerrak-Kattegat: early life stage dispersal and adult migration
Background: In marine fish species, where pelagic egg and larvae drift with ocean currents, population structure has been suggested to be maintained by larval retention due to hydrographic structuring and by homing of adult fish to natal areas. Whilst natal homing of adults has been demonstrated for anadromous and coral reef fishes, there are few documented examples of philopatric migration in temperate marine fish species. Results: Here, we demonstrate temporally stable genetic differentiation among spawning populations of Atlantic cod (Gadus morhua L.), and present genetic and behavioural evidence for larval drift and philopatric migration in the eastern North Sea-Skagerrak-Kattegat area. We show that juvenile cod collected in the eastern Skagerrak and central Kattegat are genetically similar to cod from offshore spawning areas in the eastern North Sea. Genetic assignment of individual 2–5 year old fish indicates that cod residing at, or migrating towards, spawning areas in Kattegat and the North Sea display philopatric behaviours. Conclusions: Together these findings suggest a loop between spawning, larval drift and adult return-migrations to spawning areas and underlines that both oceanographic processes and migratory behaviour in the adult phase may be important for stock separation and integrity in marine temperate fishes such as Atlantic cod.
Data from: Late Quaternary deep-sea ostracode taxonomy of the eastern North Atlantic Ocean
Taxonomic revision and re-evaluation of the eastern North Atlantic deep-sea ostracodes are conducted based on late Quaternary sediments from Ocean Drilling Program (ODP) Hole 982A, Rockall Plateau, eastern North Atlantic. Twenty one genera and 51 species were examined and (re-)illustrated with high-resolution scanning electron microscopy images. Six new species are described: Polycope lunaris, Argilloecia labri, Bythoceratina nuda, Cytheropteron colesoabyssorum, Cytheropteron colesopunctatum, and Cytheropteron paramediotumidum. Excellent fossil ostracode preservation in this sediment core enabled us to provide a robust taxonomic baseline of the eastern North Atlantic deep-sea ostracodes for application to palaeoceanographical, palaeoecological, and biogeographical studies.
Data from: A review of the lichens of the Dare Regional Biodiversity Hotspot in the Mid-Atlantic Coastal Plain of North Carolina, eastern North America
The results of a large-scale biodiversity inventory of lichens (including lichenicolous and allied fungi) in the Dare Regional Biodiversity Hotspot (DRBH) are presented. The DRBH is a region within the Mid-Atlantic Coastal Plain (MACP) of eastern North America that was recently delineated based on its unique and diverse lichen communities relative to other areas of the Atlantic Coast. Drawing on 4,952 newly generated voucher specimens from 49 sites, patterns of biodiversity and biogeography are presented and discussed within the context of both the DRBH and the broader MACP. Relationships between natural communities, vegetation, and lichen communities are discussed, as are threats to the lichen biota. A series of conservation actions are presented together with avenues for future study. In addition, supplementary resources are provided in the form of: (a) a checklist of DRBH lichens, lichenicolous fungi, and allied fungi; (b) keys to DRBH lichens and lichenicolous and allied fungi; and (c) formal descriptions of the following species new to science that were discovered during the inventory: Albemarlea pamlicoensis gen. et. sp. nov., Arthonia agelastica sp. nov. (on Lecanora louisianae B. de Lesd.), Arthonia hodgesii sp. nov. (on Graphis lineola), Arthonia stevensoniana sp. nov. (on Haematomma accolens), Lichenochora haematommatum sp. nov. (on Haematomma persoonii), Megalaria alligatorensis sp. nov., Minutoexcipula miniatoexcipula sp. nov. (on Pertusaria epixantha), Trichosphaerella buckii sp. nov. (on Punctelia rudecta).
Data from: A new species of Allophryne (Anura: Allophrynidae) from the Atlantic Rain Forest biome of eastern Brazil
A new species of the genus Allophryne is described and, in contrast to its congeners that occur in the Amazon Basin, is based on specimens obtained in Uruçuca, State of Bahia, in the Atlantic Rain Forest of eastern Brazil. Allophryne relicta sp. nov. is characterized by a medium body size for the genus (snout–vent length range 19.9–21.9 mm in males); large head (head width about 35% of SVL); large, red-orange eyes, with a large black transversal stripe on iris; dorsum covered by few tubercles and many scattered black dots; dorsolateral surfaces cream with dark brown, elongate, anastomosed spots, and venter clear gray with scattered small white tubercles; presence of a line of tubercles on the ventrolateral surface of forearm; advertisement call formed by a multi-pulsed note of 0.509 ± 0.029 s in duration and emitted at intervals of 1.287 ± 0.500 s, with notes composed of 28.58 ± 1.84 pulses at a dominant frequency of 3828 ± 82.28 Hz; call-note emission rate of 34.46 notes/min and pulse emission rate of 56.13 ± 1.25 s. The molecular phylogeny supports the placement of A. relicta sp. nov. as sister taxon of a clade formed by A. resplendens + A. ruthveni.
FIGURES 1–2. Steringovermes notacanthi n. gen., n in Steringovermes notacanthi n. gen., n. sp. (Digenea: Fellodistomidae) from the deepsea spiny eel Notacanthus bonaparte (Notacanthiformes: Notacanthidae) from the north eastern Atlantic and a new host record for Olssonium turneri
FIGURES 1–2. Steringovermes notacanthi n. gen., n. sp. 1. Ventral view of holotype, cirrussac and uterus in bold outline, bulk of excretory vesicle omitted. 2. Terminal genitalia reconstructed from sections. Abbreviations: ej, ejaculatory duct; mt, distal metraterm; ov, ovary; pp, pars prostatica; sv, seminal vesicle; t, testis; vf, vitelline follicle. Scalebars: 1, 500 µ m; 2, 200 µ m.
FIGURE 23 in Coastal Fishes of São Tomé and Príncipe islands, Gulf of Guinea (Eastern Atlantic Ocean)-an update
FIGURE 23. Nematogobius brachynemus, animal from São Tomé (no precise locality data available), photo J.L. Gasparini.
FIGURE 24 in Coastal Fishes of São Tomé and Príncipe islands, Gulf of Guinea (Eastern Atlantic Ocean)-an update
FIGURE 24. Wheelerigobius maltzani, animal from São Tomé (no precise locality data available), photo J.L. Gasparini.
FIGURE 1. Bostrichobranchus crosnieri n in A new species of Bostrichobranchus (Ascidiacea, Molgulidae) from the eastern tropical Atlantic
FIGURE 1. Bostrichobranchus crosnieri n.sp. A, B, right and left sides of a body without tunic, scale bar = 2cm; C, meshes of the branchial tissue.
FIGURE 2. Bostrichobranchus crosnieri n in A new species of Bostrichobranchus (Ascidiacea, Molgulidae) from the eastern tropical Atlantic
FIGURE 2. Bostrichobranchus crosnieri n.sp. A, body dissected along the ventral line, branchial sac removed, stained with hemalum; B, right side of a specimen devoid of tunic to show the gonad in transparency; C, whole branchial tissue removed from the body and stained with hemalum.
FIGURE 3. Bostrichobranchus crosnieri n in A new species of Bostrichobranchus (Ascidiacea, Molgulidae) from the eastern tropical Atlantic
FIGURE 3. Bostrichobranchus crosnieri n.sp. A dissected body, branchial sac removed; B, detail of a part of the gonad with testis rosettes; C, neural area with a tentacle. Scale bars: A = 10mm; B = O.4mm; C = 0.5mm.
FIGURE 3 in A new species of smooth horned frog, genus Proceratophrys Miranda-Ribeiro (Amphibia: Anura: Cycloramphidae), from the Atlantic Rainforest of eastern Bahia, Brazil
FIGURE 3. Living specimens of Proceratophrys sanctaritae sp. nov. from Santa Rita forest, Serra do Timbó, Municipality of Amargosa, State of Bahia, Brazil. Holotype: A–C, UFBA 8487, adult male, SVL 39.9 mm. Paratopotypes, adult males: D, MNRJ 62355, SVL 42.0 mm; E, UFBA 8488, SVL 40.2 mm; F, MNRJ 62356, SVL 40.0 mm; G–H, MNRJ 62357, SVL 42.0 mm. I, UFBA 7314, SVL 45.5 mm (Photos by Rafael O. Abreu: A–H, 21 May 2009; I, 12 April 2007).
FIGURE 2 in A new species of smooth horned frog, genus Proceratophrys Miranda-Ribeiro (Amphibia: Anura: Cycloramphidae), from the Atlantic Rainforest of eastern Bahia, Brazil
FIGURE 2. Holotype of Proceratophrys sanctaritae sp. nov., UFBA 8487, adult male. Dorsal (A) and lateral (B) views of head; ventral views of hand (C) and foot (D). Upper and lower horizontal lines equal 2.0 mm.
FIGURE 1 in A new species of smooth horned frog, genus Proceratophrys Miranda-Ribeiro (Amphibia: Anura: Cycloramphidae), from the Atlantic Rainforest of eastern Bahia, Brazil
FIGURE 1. Proceratophrys sanctaritae sp. nov. Dorsal (left) and ventral (right) views of holotype, UFBA 8487, adult male, SVL 39.9 mm. Photo Rafael O. Abreu.
FIGURE 2 in Sparisoma choati, a new species of Parrotfish (Labridae: Scarinae) from the tropical eastern Atlantic
FIGURE 2. Underwater photographs of a terminal phase male Sparisoma choati (A, São Tomé), initial phase S. choati (B, São Tomé), TP S. rubripinne (C, Bahamas), IP S. rubripinne (D, Belize), TP S. axillare (E, Brazil), and IP S. axillare (F, Brazil). Photo credits: L. Rocha (A, B); F. Charpin (C); J. Randall (D); J. P. Krajewski (E); O. Luiz (F).
FIGURE 1 in Sparisoma choati, a new species of Parrotfish (Labridae: Scarinae) from the tropical eastern Atlantic
FIGURE 1. Lateral, dorsal and ventral views of the holotype of Sparisoma choati, CAS 224080. Photos by J. Fong.
FIGURE 12 in Re-examination of the eastern Pacific and Atlantic material of Alpheus malleator Dana, 1852, with the description of Alpheus wonkimi sp. nov. (Crustacea, Decapoda, Alpheidae)
FIGURE 12. Map showing distribution ranges of Alpheus malleator Dana, 1852 in the Atlantic and Alpheus wonkimi sp. nov. in the eastern Pacific.
FIGURE 11 in Re-examination of the eastern Pacific and Atlantic material of Alpheus malleator Dana, 1852, with the description of Alpheus wonkimi sp. nov. (Crustacea, Decapoda, Alpheidae)
FIGURE 11. Variation of the rostro-orbital region of the carapace in Alpheus malleator Dana, 1852 [A–H] and Alpheus wonkimi sp. nov. [I, J]: A, male from Isla Grande, Panama (OUMNH.ZC 2012-07-0146); B, C, males from Puerto Rico (MNHN-IU-2010-4194, MNHN-IU-2010-4199); D, E, two males from São Paulo, Brazil (MZUSP 13094); F, male from Djeno, Congo (MNHN-IU-2010-4197); G, H, ov. female (G) and male (H) from Loos Islands, Guinea (MNHN-IU-2010-4192); I, paratype, female from Río Mar, Panama (MNHN-IU-2010-7926); J, paratype, male from Río Mar, Panama (USNM).
FIGURE 7 in Re-examination of the eastern Pacific and Atlantic material of Alpheus malleator Dana, 1852, with the description of Alpheus wonkimi sp. nov. (Crustacea, Decapoda, Alpheidae)
FIGURE 7. Alpheus wonkimi sp. nov.: paratype, male from Río Mar, Panama (RMNH.D.55154) [A–L]; paratype, male from Río Mar, Panama (USNM) [M, N, P]; paratype, female from Río Mar, Panama (MNHN-IU-2010-7926) [O, Q], A, frontal region, dorsal view; B, same, lateral view; C, third maxilliped, lateral view; D, major cheliped, lateral view; E, minor cheliped, lateral view; F, dactylus of major chela, lateral view; G, second pereiopod, lateral view; H, third pereiopod, lateral view; I, second pleopod, lateral view; J, same, detail of appendix masculina and appendix interna; K, uropodal exopod, dorsal view; L, telson, dorsal view; M, second pereiopod, lateral view; N, dactylus of major chela, lateral view; O, same, lateral view; P, distal uropodal exopod, dorsal view; Q, same, dorsal view.
FIGURE 4. Alpheus malleator Dana, 1852 in Re-examination of the eastern Pacific and Atlantic material of Alpheus malleator Dana, 1852, with the description of Alpheus wonkimi sp. nov. (Crustacea, Decapoda, Alpheidae)
FIGURE 4. Alpheus malleator Dana, 1852: male from São Paulo (MZUSP 13094) [A–E]; male from São Paulo (MZUSP 28270) [F, G], A, frontal region, dorsal view; B, major cheliped, detached, lateral view; C, same, mesial view; D, minor cheliped, detached, lateral view; E, same, mesial view; F, major chela, in situ, lateral view; G, same, mesial view. Scale bars estimated.
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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.