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FIGURE 9 in Manned submersible dives reveal a singular assemblage of Hexactinellida (Porifera) off the Amazon River mouth, Northern Brazil
FIGURE 9. Microscleres of Dactylocalyx pumiceus (SEM). A, discohexaster; B, onychohexaster; C–D, oxyhexasters. Insets: actin tips.
Supplementary material 1 from: Murphy CA, Gerth W, Neal T, Arismendi I (2022) A low-cost, durable, submersible light trap and customisable LED design for pelagic deployment and capture of fish parasite Salmincola sp. copepodids. NeoBiota 73: 1-17. https://doi.org/10.3897/neobiota.73.76515
Supplementary material for a low-cost, durable, submersible light trap and customizable LED design for pelagic deployment and capture of fish parasite Salmincola sp. copepodids
Data from: A submersible, off-axis holographic microscope for detection of microbial motility and morphology in aqueous and icy environments
Sea ice is an analog environment for several of astrobiology's near-term targets: Mars, Europa, Enceladus, and perhaps other Jovian or Saturnian moons. Microorganisms, both eukaryotic and prokaryotic, remain active within brine channels inside the ice, making it unnecessary to penetrate through to liquid water below in order to detect life. We have developed a submersible digital holographic microscope (DHM) that is capable of resolving individual bacterial cells, and demonstrated its utility for immediately imaging samples taken directly from sea ice at several locations near Nuuk, Greenland. In all samples, the appearance and motility of eukaryotes were conclusive signs of life. The appearance of prokaryotic cells alone was not sufficient to confirm life, but when prokaryotic motility occurred, it was rapid and conclusive. Warming the samples to above-freezing temperatures or supplementing with serine increased the number of motile cells and the speed of motility; supplementing with serine also stimulated chemotaxis. These results show that DHM is a useful technique for detection of active organisms in extreme environments, and that motility may be used as a biosignature in the liquid brines that persist in ice. These findings have important implications for the design of missions to icy environments and suggest ways in which DHM imaging may be integrated with chemical life-detection suites in order to create more conclusive life detection packages.
Figure 7 in Talpacoxa brandini gen. et sp. nov. a new Nannopodidae Brady, 1880 (Copepoda: Harpacticoida) from submersed sands of Pontal do Sul (Paraná, Brazil)
Figure 7. Female of Talpacoxa brandini gen. et sp. nov. Allotype, INPA 1375. P4 (A), P5 (B), ventral view of genital segment (C). Scale 1 (A and B) 25 µm; scale 2 (C) 25 µm.
Figure 6 in Talpacoxa brandini gen. et sp. nov. a new Nannopodidae Brady, 1880 (Copepoda: Harpacticoida) from submersed sands of Pontal do Sul (Paraná, Brazil)
Figure 6. Female of Talpacoxa brandini gen. et sp. nov. Allotype, INPA 1375. Ventral view of P1 (A), outer view of P1 (B), P2 (C), P3 (D). Scale= 25 µm.
Figure 3 in Talpacoxa brandini gen. et sp. nov. a new Nannopodidae Brady, 1880 (Copepoda: Harpacticoida) from submersed sands of Pontal do Sul (Paraná, Brazil)
Figure 3. Male of Talpacoxa brandini gen. et sp. nov. Holotype, INPA 1374. Md gnathobasis (A), palp of the opposite Md (B), Mx1 (C, C1 and C2), Mx1 praecoxal arthrite fully armed (C1) and with posterior elements only (C2), Mx2 (D), schematic view of the ornamentation of the bipinnate spine of the 1st endite (E), Mxp (F), furca dorsal (G). Scale 1 (A–D and F) 25 µm; scale 2 (C1, 2) 25 µm; scale 3 (G) 25 µm. (E) not to scale.
Figure 1 in Talpacoxa brandini gen. et sp. nov. a new Nannopodidae Brady, 1880 (Copepoda: Harpacticoida) from submersed sands of Pontal do Sul (Paraná, Brazil)
Figure 1. Male of Talpacoxa brandini gen. et sp. nov. Holotype, INPA 1374. Lateral habitus (A), dorsal habitus (B). Scale 50 µm.
Figure 8 in Talpacoxa brandini gen. et sp. nov. a new Nannopodidae Brady, 1880 (Copepoda: Harpacticoida) from submersed sands of Pontal do Sul (Paraná, Brazil)
Figure 8. Confocal laser scanning microscopy photomicrographs of Talpacoxa brandini gen. et sp. nov. Male paratype, INPA 1697, ventrolateral view (A). Female paratype INPA 1699, dorsal view (B), lateral view (C), ventral view of cephalothorax and somites bearing P2 and P3 (D). Scale 1 100 µm; scale 2 50 µm.
Figure 5 in Talpacoxa brandini gen. et sp. nov. a new Nannopodidae Brady, 1880 (Copepoda: Harpacticoida) from submersed sands of Pontal do Sul (Paraná, Brazil)
Figure 5. Female of Talpacoxa brandini gen. et sp. nov. Allotype, INPA 1375. Lateral habitus (A), A2 (B). Scale 1 (A) 50 µm; scale 2 (B) 25 µm.
Data from: Worms and submersed macrophytes reduce methane release and increase nutrient removal in organic sediments
<p>We investigated how the co-presence of macrophytes and macroinvertebrates in organic substrates lowers methane emissions and nutrient transport, due to radial oxygen loss and bioirrigation. Laboratory incubations were performed to measure ebullitive methane fluxes and dissolved gas and nutrient fluxes from sediments in presence of macrophytes and macrofauna.</p>
Figure 39 in Molecular phylogeny, analysis of character evolution, and submersible collections enable a new classification of a diverse group of gobies (Teleostei: Gobiidae: Nes subgroup), including nine new species and four new genera
Figure 39. Varicus veliguttatus papillae pattern, drawn from paratype, USNM 406372. Illustration by J.L. Van Tassell.
Figure 36 in Molecular phylogeny, analysis of character evolution, and submersible collections enable a new classification of a diverse group of gobies (Teleostei: Gobiidae: Nes subgroup), including nine new species and four new genera
Figure 36. Varicus nigritus papillae pattern, drawn from holotype, USNM 427233. Illustration by J.L. Van Tassell.
Figure 37 in Molecular phylogeny, analysis of character evolution, and submersible collections enable a new classification of a diverse group of gobies (Teleostei: Gobiidae: Nes subgroup), including nine new species and four new genera
Figure 37. Varicus veliguttatus; (A) paratype, 39.2 mm SL, USNM 406372, prior to preservation; (B) paratype, 41.5 mm SL, USNM 431697, prior to preservation; (C) paratype, 27.7 mm SL, USNM 436648, prior to preservation; (D) paratype, USNM 436648, live; photos by D.R. Robertson and C. Baldwin (A–C) and Barry Brown (D).
Figure 35 in Molecular phylogeny, analysis of character evolution, and submersible collections enable a new classification of a diverse group of gobies (Teleostei: Gobiidae: Nes subgroup), including nine new species and four new genera
Figure 35. Varicus nigritus, holotype, 35.4 mm SL, USNM 427233; (A) preserved, photographed in 2014, photo by J.L. Van Tassell; (B) preserved, photographed several days after collection, photo by R.G. Gilmore.
Figure 33 in Molecular phylogeny, analysis of character evolution, and submersible collections enable a new classification of a diverse group of gobies (Teleostei: Gobiidae: Nes subgroup), including nine new species and four new genera
Figure 33. Varicus decorum papillae pattern, drawn from paratype, USNM 426692. Illustration by J.L. Van Tassell.
Figure 32 in Molecular phylogeny, analysis of character evolution, and submersible collections enable a new classification of a diverse group of gobies (Teleostei: Gobiidae: Nes subgroup), including nine new species and four new genera
Figure 32. Varicus decorum, paratype, 40.2 mm SL, USNM 426692, preserved. Photo by J.L. Van Tassell.
Figure 16 in Molecular phylogeny, analysis of character evolution, and submersible collections enable a new classification of a diverse group of gobies (Teleostei: Gobiidae: Nes subgroup), including nine new species and four new genera
Figure 16. Pinnichthys saurimimica papillae pattern, drawn from holotype, USNM 427228. Illustration by J.L. Van Tassell.
Figure 12. Pinnichthys aimoriensis papillae pattern, composite from AMNH 265020 and CIUFES 2414 in Molecular phylogeny, analysis of character evolution, and submersible collections enable a new classification of a diverse group of gobies (Teleostei: Gobiidae: Nes subgroup), including nine new species and four new genera
Figure 12. Pinnichthys aimoriensis papillae pattern, composite from AMNH 265020 and CIUFES 2414. Illustration by J.L. Van Tassell.
Figure 13 in Molecular phylogeny, analysis of character evolution, and submersible collections enable a new classification of a diverse group of gobies (Teleostei: Gobiidae: Nes subgroup), including nine new species and four new genera
Figure 13. Pinnichthys saurimimica, illustration of live holotype, 55.5 mm SL, USNM 427228 by R.G. Gilmore.
Figure 7 in Molecular phylogeny, analysis of character evolution, and submersible collections enable a new classification of a diverse group of gobies (Teleostei: Gobiidae: Nes subgroup), including nine new species and four new genera
Figure 7. Ancestral character estimation for (A) the presence/absence of body scales (not including basicaudal scales) and (B) and presence/absence of modified basicaudal scales. Pies at nodes represent posterior probabilities for ancestor's character state. Species from the eastern Pacific are denoted with "(P)".
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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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.