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58 results for “Hydrothermal system”
FIGURE 2. Protanais ligniamator, female paratype. A in Tanaidacea (Crustacea; Peracarida) from chemically reduced habitats-the hydrothermal vent system of the Juan de Fuca Ridge, Escabana Trough and Gorda Ridge, northeast Pacific
FIGURE 2. Protanais ligniamator, female paratype. A) Antennule; B) Antenna; C) Labrum; D) Left mandible; E) Right mandible; F) Left mandible, molar; G) Labium; H) Maxillule; I) Maxilla; J) Maxilliped; K) Epignath. Scale bars: 1 mm.
FIGURE 11. Armaturatanais trispinipodus, female. A in Tanaidacea (Crustacea; Peracarida) from chemically reduced habitats-the hydrothermal vent system of the Juan de Fuca Ridge, Escabana Trough and Gorda Ridge, northeast Pacific
FIGURE 11. Armaturatanais trispinipodus, female. A) Holotype, lateral view; B) Antennule; C) Antenna; D) Labrum; E) Left mandible; F) Right mandible; G) Labium; H) Maxillule; I) Maxilliped; J) Cheliped. Scale bar A 1 mm, scale bars B–I 0.25 mm.
FIGURE 6. Protanais ligniamator, adult male paratype. A in Tanaidacea (Crustacea; Peracarida) from chemically reduced habitats-the hydrothermal vent system of the Juan de Fuca Ridge, Escabana Trough and Gorda Ridge, northeast Pacific
FIGURE 6. Protanais ligniamator, adult male paratype. A) Cheliped; B) Pereopod 1; C) Pereopod 2; D) Pereopod 3; E) Pereopod 4; F) Pereopod 5; G) Pereopod 6; H) Pleopod; I) Uropod. Scale 1 mm.
FIGURE 7. Protanais ligniamator, juvenile male paratype. A in Tanaidacea (Crustacea; Peracarida) from chemically reduced habitats-the hydrothermal vent system of the Juan de Fuca Ridge, Escabana Trough and Gorda Ridge, northeast Pacific
FIGURE 7. Protanais ligniamator, juvenile male paratype. A) Lateral view, mouthparts not drawn for clarity; B) Maxilliped; C) Cheliped; D) Cheliped of a slightly larger juvenile male; E) Pereopod 6; F) Uropod. Scale bar A 2 mm, scale bar B–F 1 mm.
FIGURE 10. Protanais ligniamator. Mouthpart variation. A1 in Tanaidacea (Crustacea; Peracarida) from chemically reduced habitats-the hydrothermal vent system of the Juan de Fuca Ridge, Escabana Trough and Gorda Ridge, northeast Pacific
FIGURE 10. Protanais ligniamator. Mouthpart variation. A1) Right mandible incisor, male; A2) Same, different orientation; B1) Left mandible incisor, male; B2) Same, different orientation; C) Right mandible incisor, different male specimen; D) Left mandible incisor, different male specimen; E) Labium, male; F) Same, different male specimen; G) Labium, female; H) Same, different female specimen. Scale bars 0.25 mm.
FIGURE 1. Protanais ligniamator. A in Tanaidacea (Crustacea; Peracarida) from chemically reduced habitats-the hydrothermal vent system of the Juan de Fuca Ridge, Escabana Trough and Gorda Ridge, northeast Pacific
FIGURE 1. Protanais ligniamator. A) Holotype, adult female, dorsal view. B) Paratype, female, lateral view, mouthparts not drawn for clarity. Scale bar 2 mm.
FIGURE 9. Protanais ligniamator, manca III paratype. A in Tanaidacea (Crustacea; Peracarida) from chemically reduced habitats-the hydrothermal vent system of the Juan de Fuca Ridge, Escabana Trough and Gorda Ridge, northeast Pacific
FIGURE 9. Protanais ligniamator, manca III paratype. A) Cheliped; B) Pereopod 1; C) Pereopod 2; D) Pereopod 3; E) Pereopod 4; F) Pereopod 5; G) Pereopod 6; H) Pleopod; I) Uropod. Scale bars A–G + I = 0.5 mm, H = 0.25 mm.
FIGURE 11. Armaturatanais atlanticus n in Tanaidacean (Crustacea: Peracarida) fauna from chemically reduced habitats-the lucky strike hydrothermal vent system, mid-atlantic ridge
FIGURE 11. Armaturatanais atlanticus n. sp. A, cheliped; B, pereopod 1; C, pereopod 2; D, pereopod 3; E, pereopod 4; F, pereopod 5; G, pereopod 6. Scale bars = 0.1 mm.
FIGURE 2. Leptognathiella fragilis n in Tanaidacean (Crustacea: Peracarida) fauna from chemically reduced habitats-the lucky strike hydrothermal vent system, mid-atlantic ridge
FIGURE 2. Leptognathiella fragilis n. sp. A, pereopod 1; B, pereopod 2; C, pereopod 3; D, pereopod 4; E, pereopod 5; F, pereopod 6; G, pleopod; H, uropod. Scale bar = 0.1 mm.
Data from: A molecular gut content study of Themisto abyssorum (Amphipoda) from Arctic hydrothermal vent and cold seep systems
The use of DNA as a marker for prey inside the gut of predators has been instrumental in further understanding of known and unknown interactions. Molecular approaches are in particular useful in unavailable environments like the deep-sea. Trophic interactions in the deep-sea are difficult to observe in situ, correct deep-sea experimental laboratory conditions are difficult to obtain, animals rarely survive the sampling, or the study organisms feed during the sampling due to long hauls. Preliminary studies of vent and seep systems in the Nordic Seas have identified the temperate-cold water pelagic amphipod Themisto abyssorum as a potentially important predator these chemosynthetic habitats. However, the prey of this deep-sea predator is poorly known, and we applied Denaturing High Performance Liquid Chromatography (DHPLC) to investigate the predator - prey interactions of T. abyssorum in deep-water vent and seep systems. Two deep-water hydrothermally active localities (The Jan Mayen and Loki's Castle vent fields) and one cold seep locality (The Håkon Mosby mud volcano) in the Nordic Seas were sampled, genomic DNA of the stomachs of T. abyssorum was extracted, and 18S rDNA gene was amplified and used to map the stomach content. We found a wide range of organisms including micro-eukaryotes, metazoans and detritus. Themisto abyssorum specimens from Loki's Castle had the highest diversity of prey. The wide range of prey items found suggests that T. abyssorum might be involved in more than one trophic level and should be regarded as an omnivore and not a strict carnivore as have previously been suggested.
FIGURE 11. Seba bathybia n in Amphipoda (Crustacea; Peracarida) from the Hydrothermal vent system of the Juan De Fuca Ridge, Escabana trough and Gorda ridge, Northeast Pacific. Part I. Lysianassidae and Sebidae
FIGURE 11. Seba bathybia n. sp. Paratype male, 3.4 mm (FMNH # 12771). A, gnathopod 1 coxa; B, gnathopod 2 coxa; C, pereopod 3 coxa; D, pereopod 4 coxa; E, pereopod 5 coxa; F, pereopod 6 coxa; G, pereopod 7 coxa; H, head and mouthparts. Scale bar coxa = 0.2 mm, scale bar head = 0.1 mm.
FIGURE 12. Seba bathybia n in Amphipoda (Crustacea; Peracarida) from the Hydrothermal vent system of the Juan De Fuca Ridge, Escabana trough and Gorda ridge, Northeast Pacific. Part I. Lysianassidae and Sebidae
FIGURE 12. Seba bathybia n. sp. Paratypes male, 3.4 mm (FMNH # 12771) female, 3.3 mm (FMNH # 12771). A, pereopod 4 merus, male; B, same, female; C, pereopod 5 merus, male; D, same, female; E, pereopod 6 merus, male; F, same, female; G, pereopod 7 merus, male; H, same, female. Scale bar = 0.3 mm.
FIGURE 10. Seba bathybia n in Amphipoda (Crustacea; Peracarida) from the Hydrothermal vent system of the Juan De Fuca Ridge, Escabana trough and Gorda ridge, Northeast Pacific. Part I. Lysianassidae and Sebidae
FIGURE 10. Seba bathybia n. sp. Paratype male, 3.4 mm and female 3.7 mm (FMNH # 12771). A, gnathopod 1; A1, same, chela; B, gnathopod 2; B1, same chela; B2, same, female, chela; C, pleopod 1; C1, same, retinaculae; D, uropod 1; E, uropod 2; F, uropod 3; G, epimeron 1-3. Scale bar B1, B2, C1 & H 0.1 mm, other scale bars 0.2 mm.
FIGURE 9. Seba bathybia n in Amphipoda (Crustacea; Peracarida) from the Hydrothermal vent system of the Juan De Fuca Ridge, Escabana trough and Gorda ridge, Northeast Pacific. Part I. Lysianassidae and Sebidae
FIGURE 9. Seba bathybia n. sp. Paratype male, 3.4 mm (FMNH # 12771). A, pereopod 3; B, pereopod 4; C, pereopod 5; D, pereopod 6; E, pereopod 7; F, oostegites and gill; G, telson. Scale bar F & detail = 0.1 mm other scale bar 0.2 mm.
FIGURE 8. Seba bathybia n in Amphipoda (Crustacea; Peracarida) from the Hydrothermal vent system of the Juan De Fuca Ridge, Escabana trough and Gorda ridge, Northeast Pacific. Part I. Lysianassidae and Sebidae
FIGURE 8. Seba bathybia n. sp. A, holotype, male, 2.8 mm (FMNH #13758), habitus, lateral view (not straightened), Scale bar 0.5 mm. B-J paratype male, 3.4 mm (FMNH # 12771). B, antenna 1; B1, accessory flagellum; C, antenna 2; D, upper lip, dorsal view; D1, same, lateral view; E, left mandible; F, right mandible; F1, left mandible incisor, lacinia mobilis, spine row; G, lower lip; H, left maxilla 1; H1, right maxilla 1 outer plate spiniform setae; I, maxilla 2; J, maxilliped; J1, same, outer endite; J2, same, inner endite.. Scale bars F1, H1, J1 & J2 = 0.1 mm, other scale bars = 0.2 mm.
FIGURE 6. Schisturella hansgeorgi n in Amphipoda (Crustacea; Peracarida) from the Hydrothermal vent system of the Juan De Fuca Ridge, Escabana trough and Gorda ridge, Northeast Pacific. Part I. Lysianassidae and Sebidae
FIGURE 6. Schisturella hansgeorgi n. sp. Male paratype, 5.4 mm (FMNH #12862). A, gnathopod 1; A1, same distal end of propodus; B, gnathopod 2; B1, same, distal end of propodus; C, pereopod 3; D, pereopod 4; E, pereopod 5; F, pereopod 6. Scale bar G1 0.1 = mm, other scales bars = 0.5 mm.
FIGURE 7. Schisturella hansgeorgi n in Amphipoda (Crustacea; Peracarida) from the Hydrothermal vent system of the Juan De Fuca Ridge, Escabana trough and Gorda ridge, Northeast Pacific. Part I. Lysianassidae and Sebidae
FIGURE 7. Schisturella hansgeorgi n. sp. Male paratype, 5.4 mm (FMNH #12862). A, head and mouthparts; B, gnathopod 1 coxa; C, gnathopod 2 coxa; D, pereopod 5 coxa; E, pereopod 6 coxa; F, pereopod 7 coxa; G, gills. Scale bars = 0.2 mm.
FIGURE 5. Schisturella hansgeorgi n in Amphipoda (Crustacea; Peracarida) from the Hydrothermal vent system of the Juan De Fuca Ridge, Escabana trough and Gorda ridge, Northeast Pacific. Part I. Lysianassidae and Sebidae
FIGURE 5. Schisturella hansgeorgi n. sp. Male paratype, 5.4 mm (FMNH #12862). A, upper lip, lateral view; B, left mandible; C, right mandible; D, maxilla 1; D1, outer plate apical setae; D2, distal palp article; E, maxilla 2; F, maxilliped; G uropod 1; H, uropod 2; I uropod 3; J, Telson. Scale bars, mouthparts 0.2 mm, details 0.1 mm, other scale bars: 0.5 mm.
FIGURE 4. Schisturella hansgeorgi n in Amphipoda (Crustacea; Peracarida) from the Hydrothermal vent system of the Juan De Fuca Ridge, Escabana trough and Gorda ridge, Northeast Pacific. Part I. Lysianassidae and Sebidae
FIGURE 4. Schisturella hansgeorgi n. sp. A, holotype, male habitus, lateral view (not straightened), 7.4 mm (FMNH # 13757), Scale bar 1 mm; B–D male paratype, 5.4 mm (FMNH #12862). B, antenna 1; C, antenna 2; D, lower lip; E, pleopod 1, setae not fully drawn for clarity. E1 peduncle retinaculae. Scale bar E1 = 0.1 mm, other scale bars = 0.5 mm.
FIGURE 2. Paronesimoides voightae n in Amphipoda (Crustacea; Peracarida) from the Hydrothermal vent system of the Juan De Fuca Ridge, Escabana trough and Gorda ridge, Northeast Pacific. Part I. Lysianassidae and Sebidae
FIGURE 2. Paronesimoides voightae n. sp. Female paratypes, 4.7 & 4.9 mm (FMNH # 13027 & 12906). A, gnathopod 1; A1, same, palm and dactylus; B, gnathopod 2; B1, same, propodus; B2, same dactylus; C, pereopod 3; D, pereopod 4; E, pereopod 5; F, pereopod 6; G, pereopod 7; H, pleopod 1, setae not fully drawn for clarity; I, head and mouthparts. Scale bar A1, B1 0.2 mm, B2 0.1 mm, scale bar head = 0.2, other scale bars 0.5 mm.
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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
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