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273 results for “Eastern Pacific Ocean”
Data from: Possible ballast water transfer of lionfish to the eastern Pacific Ocean
The Indo-Pacific Red Lionfish was first reported off the Florida coast in 1985, following which it has spread across much of the SE USA, Gulf of Mexico, and Caribbean Sea. Lionfish negatively impact fish and invertebrate assemblages and abundances, thus further spread is cause for concern. To date, the fish has not been reported on the Pacific coast of North or Central America. Here we examine the possibility of ballast water transfer of lionfish from colonized areas in the Atlantic Ocean to USA ports on the Pacific coast. Over an eight-year period, we documented 27 commercial vessel-trips in which ballast water was loaded in colonized sites and later discharged untreated into Pacific coast ports in the USA. California had the highest number of discharges including San Francisco Bay and Los Angeles-Long Beach. A species distribution model suggests that the probability of lionfish establishment is low for the western USA, Colombia and Panama, low to medium for Costa Rica, Nicaragua, El Salvador and Guatemala, medium to high for mainland Ecuador, and very high for western Mexico, Peru and the Galapagos Islands. Given the species' intolerance of freshwater conditions, we propose that ballast water exchange be conducted in Gatún Lake, Panama for western-bound vessels carrying 'risky' ballast water to prevent invasion of the eastern Pacific Ocean.
FIGURE 4 in New paedomorphic brachiopods from the abyssal zone of the north-eastern Pacific Ocean
FIGURE 4. Simpliciforma profunda Bitner & Zezina gen. et sp. nov., Clarion-Clipperton Zone, north-eastern Pacific; A, dorsal view of complete specimen, paratype, XI-52-24/2, Stn 27, depth 4850 m; B–D, dorsal valve, inner view and enlargement of the lophophore (C, D), paratype, XI-52-24/3, Stn 185–199, 4580 m; E, F, dorsal view of complete specimen, and enlargement of the umbonal part to show details of the beak, holotype, XI-52-24/1, Stn 217, 4680 m; G–I, dorsal view of complete specimen, and enlargement of the umbonal part, slightly tilted, to show details of the beak (H) and of the shell surface to show distinct growth lines (I), paratype, XI-52-24/4, Stn 185-199, 4580 m.
FIGURE 3 in New paedomorphic brachiopods from the abyssal zone of the north-eastern Pacific Ocean
FIGURE 3. Oceanithyris juveniformis Bitner & Zezina gen. et sp. nov., Clarion-Clipperton Zone, north-eastern Pacific; A, dorsal view of young complete specimen, XI-52-23/5, Stn 41, 4790 m; B–E, ventral, dorsal and lateral views of complete specimen, and enlargement of the umbonal part (E) to show details of the beak and the rough surface anterior to the protegular node and fine striae, holotype, XI-52-23/1, Stn 41, 4790 m; F–H, dorsal and posterior views of complete specimen, and enlargement of the umbonal part (H) to show details of the beak and the rough surface anterior to the protegular node, paratype, XI-52-23/2, Stn 217, 4680 m; I–L, dorsal valve, inner views with preserved lophophore and after its removal, and enlargements of posterior part (K, L) to show details of cardinalia, paratype, XI-52-23/3, Stn 217, 4680 m; M–O, ventral valve, inner view (M), and enlargement of posterior part (N) and tilted view (O) to show rudimentary deltidial plates, hooked teeth and step-like thickening of the shell, paratype, XI-52-23/4, Stn 27, depth 4850 m.
FIGURE 2 in New paedomorphic brachiopods from the abyssal zone of the north-eastern Pacific Ocean
FIGURE 2. Manganese nodules with attached brachiopods, Clarion-Clipperton Zone, Pacific; A, Pelagodiscus atlanticus (King, 1868), Stn 21, 4790 m; B, Oceanithyris juveniformis Bitner & Zezina gen. et sp. nov., Stn 197, 4580 m.
FIGURE 3. Eusyllis grandmariae n in Revision of the genus Eusyllis Malmgren, 1867 (Annelida: Phyllodocida: Syllidae: Eusyllinae), with the description of a new species from the eastern Pacific Ocean
FIGURE 3. Eusyllis grandmariae n. sp. (Paratype) SEM. (A) anterior part, dorsal view; (B) prostomium and anterior segments; (C) everted pharynx; (D) anterior part, ventral view; (E) parapodia, ventral view.
FIGURE 2. Eusyllis grandmariae n in Revision of the genus Eusyllis Malmgren, 1867 (Annelida: Phyllodocida: Syllidae: Eusyllinae), with the description of a new species from the eastern Pacific Ocean
FIGURE 2. Eusyllis grandmariae n. sp. (Holotype) (A) anterior part, dorsal view; (B) pharynx and denticled arc; (C) crosssection of a body segment; (D–E) compound chaetae and aciculae. Scales: A 10 µm, B 20 µm, C 10 µm, (D–E) 40 µm.
FIGURE 5 in Revision of the genus Eusyllis Malmgren, 1867 (Annelida: Phyllodocida: Syllidae: Eusyllinae), with the description of a new species from the eastern Pacific Ocean
FIGURE 5. Eusyllis nuchalata (Paratype) (A) parapodia and cirri; (B) parapodia, dorsal view; (C) compound chaetae. Scales: (A–B) 0.18 mm, C 20 µm.
FIGURE 11 in Rediscovery of Sagittalarva inornata n. gen., n. comb. (Gilbert, 1890) (Perciformes: Labridae), a long-lost deepwater fish from the eastern Pacific Ocean: a case study of a forensic approach to taxonomy using DNA barcoding
FIGURE 11. Julidine portion of the phylogenetic tree from Westneat and Alfaro (2005), with the newly-available sequences for Sagittalarva inornata added, based on a maximum-likelihood model utilizing nuclear genes Rag2 and Tmo4c4 and mitochondrial genes 12s and 16s (log likelihood = -47392.14). S. inornata is highlighted in red, the New World Halichoeres clade in purple, a large Indo-Pacific Halichoeres clade in yellow, smaller Indo-Pacific clades of Halichoeres in orange and green, Pseudojuloides in pink, the "julidinoid" Pseudolabrines in blue and Cheilio and other non-julidines below. The scale bar at upper left represents 0.02 substitutions per site. The sequences for Rag2, Tmo4c4, 12s, and 16s for S. inornata correspond to GenBank accessions JX684103–6; the accession numbers for the remaining sequences are listed in Table 1 of Westneat and Alfaro (2005).
FIGURE 9 in Rediscovery of Sagittalarva inornata n. gen., n. comb. (Gilbert, 1890) (Perciformes: Labridae), a long-lost deepwater fish from the eastern Pacific Ocean: a case study of a forensic approach to taxonomy using DNA barcoding
FIGURE 9. Photograph and radiograph of the holotype of Sagittalarva inornata, 73 mm SL, USNM 44273, courtesy Sandra Raredon, USNM.
FIGURE 8 in Rediscovery of Sagittalarva inornata n. gen., n. comb. (Gilbert, 1890) (Perciformes: Labridae), a long-lost deepwater fish from the eastern Pacific Ocean: a case study of a forensic approach to taxonomy using DNA barcoding
FIGURE 8. Underwater photograph of juvenile S. inornata in Baja California from videos by Octavio Aburto-Oropeza and Brad Erisman.
FIGURE 1 in Rediscovery of Sagittalarva inornata n. gen., n. comb. (Gilbert, 1890) (Perciformes: Labridae), a long-lost deepwater fish from the eastern Pacific Ocean: a case study of a forensic approach to taxonomy using DNA barcoding
FIGURE 1. Radiograph of the head of the holotype of Sagittalarva inornata (USNM 44273) showing a single pair of enlarged canines at the front of the upper and lower jaws followed by rows of caniniform to coniform teeth, courtesy Sandra Raredon, USNM.
FIGURE 4 in Rediscovery of Sagittalarva inornata n. gen., n. comb. (Gilbert, 1890) (Perciformes: Labridae), a long-lost deepwater fish from the eastern Pacific Ocean: a case study of a forensic approach to taxonomy using DNA barcoding
FIGURE 4. Larva of Pseudojuloides cerasinus from Hawaii, identified by DNA-barcode matching, courtesy David Carlon.
FIGURE 10. A in Rediscovery of Sagittalarva inornata n. gen., n. comb. (Gilbert, 1890) (Perciformes: Labridae), a long-lost deepwater fish from the eastern Pacific Ocean: a case study of a forensic approach to taxonomy using DNA barcoding
FIGURE 10. A phenetic neighbor-joining tree based on the COI mtDNA sequences of 146 julidine wrasses, including Sagittalarva inornata (with asterisk), following the Kimura two-parameter model (K2P) generated by BOLD. The GenBank accession numbers corresponding to the sequences in the tree are listed in Appendix 1. The scale bar at lower left represents a 2% sequence difference.
FIGURE 3 in Rediscovery of Sagittalarva inornata n. gen., n. comb. (Gilbert, 1890) (Perciformes: Labridae), a long-lost deepwater fish from the eastern Pacific Ocean: a case study of a forensic approach to taxonomy using DNA barcoding
FIGURE 3. Larval labrids of the eastern Pacific Ocean: from top, Sagittalarva inornata 11.6 mm SL & 8.3 mm SL, Halichoeres 13.1 mm SL, Thalassoma 10.2 mm SL (identified by DNA-barcode matching).
FIGURE 7 in Rediscovery of Sagittalarva inornata n. gen., n. comb. (Gilbert, 1890) (Perciformes: Labridae), a long-lost deepwater fish from the eastern Pacific Ocean: a case study of a forensic approach to taxonomy using DNA barcoding
FIGURE 7. Underwater photograph of female S. inornata in Baja California from videos by Octavio Aburto-Oropeza and Brad Erisman.
FIGURE 8 in Bathydorus laniger and Docosaccus maculatus (Lyssacinosida; Hexactinellida): Two new species of glass sponge from the abyssal eastern North Pacific Ocean
FIGURE 8. Spicule images of Docosaccus maculatus sp. n. (LM). A. Atrial pentactin. B. Choanosomal hexactin. C. Dermal hexactin. Scale bar (between Figures 8a and 8b): 200 µm. D–G. Oxyhexasters. Scale bar (between 8d and 8f): 50 µm.
FIGURE 9 in Bathydorus laniger and Docosaccus maculatus (Lyssacinosida; Hexactinellida): Two new species of glass sponge from the abyssal eastern North Pacific Ocean
FIGURE 9. Floricomes of Docosaccus maculatus sp. n. (SEM). A. Complete floricome. Scale bar: 50 µm. B. Close-up of floricome secondary rays. Scale bars: A, 50 µm; B, 10 µm.
FIGURE 7 in Bathydorus laniger and Docosaccus maculatus (Lyssacinosida; Hexactinellida): Two new species of glass sponge from the abyssal eastern North Pacific Ocean
FIGURE 7. Giant prostal hexactins crisscross through the thin body of the sponge, creating an unfused support structure for the plate-like sponge (A). Small distal rays project downward into sediments while reduced knobs project upward to the atrial surface of the sponge (B). Diactins bundle together with the distal ray to create anchoring spicule tufts (not shown). Scale bars: A, 100 µm; B, 1 cm.
FIGURE 5 in Bathydorus laniger and Docosaccus maculatus (Lyssacinosida; Hexactinellida): Two new species of glass sponge from the abyssal eastern North Pacific Ocean
FIGURE 5. Docosaccus maculatus sp. n., whole body images of holotype. A. In situ photograph taken by ROV Tiburon. Atrial surface with black and white spots visible. Black spots are caused by shadows in holes that perforate the body (parietal oscula); white spots occur where anchoring spicule tufts are visible through the body. Credit: MBARI. B. Dermal surface, fouled to a beige color from sediment during collection, showing small papillae consisting of anchoring spicule bundles. Scale bar: 5 cm.
FIGURE 6 in Bathydorus laniger and Docosaccus maculatus (Lyssacinosida; Hexactinellida): Two new species of glass sponge from the abyssal eastern North Pacific Ocean
FIGURE 6. Diagram of spicule arrangement for Docosaccus maculatus sp. n. from Station M, California, USA. The atrial surface is at the top of the image while the dermal surface is at the bottom. Scale bar: 200 µm.
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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