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145 results for “northeastern Pacific”
FIG. 13. — A, Triconia komo n in Two new species of the similis-subgroup of Triconia Böttger- Schnack, 1999 (Copepoda, Oncaeidae) and a redescription of T. denticula Wi, Shin & Soh, 2011 from the northeastern equatorial Pacific
FIG. 13. — A, Triconia komo n. sp. female: genital aperture, arrows indicating two spinous processes; B, Triconia onnuri n. sp. female genital aperture, arrow indicating spinous process, inset showing ornamentation with minute pores or pits above P6; C, male cephalosome, lateral, arrows indicating integumental pores. Scale bars: A, 2 μm; B, 5 μm; C, 10 μm.
FIG. 12 in Two new species of the similis-subgroup of Triconia Böttger- Schnack, 1999 (Copepoda, Oncaeidae) and a redescription of T. denticula Wi, Shin & Soh, 2011 from the northeastern equatorial Pacific
FIG. 12. — Triconia denticula Wi, Shin & Soh, 2011, female: A, P1, anterior; B, P2, anterior; C, P3, anterior; D, P4, anterior. Abbreviations: see Material and methods. Scale bar: 50 μm.
FIG. 10 in Two new species of the similis-subgroup of Triconia Böttger- Schnack, 1999 (Copepoda, Oncaeidae) and a redescription of T. denticula Wi, Shin & Soh, 2011 from the northeastern equatorial Pacific
FIG. 10. — Triconia denticula Wi, Shin & Soh, 2011. female: A, habitus, dorsal; B, habitus, lateral; C, urosome, dorsal, arrows indicating secretory pores; D, urosome, lateral; E, P5, dorsal view. Scale bars: A-D, 100 μm, E, 20 μm.
FIG. 11 in Two new species of the similis-subgroup of Triconia Böttger- Schnack, 1999 (Copepoda, Oncaeidae) and a redescription of T. denticula Wi, Shin & Soh, 2011 from the northeastern equatorial Pacific
FIG. 11. — Triconia denticula Wi, Shin & Soh, 2011, female: A, antennule; B, antenna, anterior; C, mandible; D, maxillule; E, maxilla; F, maxilliped; G, labrum, anterior; H, labrum, posterior. Scale bars: A, F, 50 μm; B-E, G, H, 20 μm.
FIG. 9. — Triconia onnuri n in Two new species of the similis-subgroup of Triconia Böttger- Schnack, 1999 (Copepoda, Oncaeidae) and a redescription of T. denticula Wi, Shin & Soh, 2011 from the northeastern equatorial Pacific
FIG. 9. — Triconia onnuri n. sp. male: A, habitus, dorsal; B, cephalosome and P1-bearing somite, lateral; C, antennule; D, urosome, dorsal; E, urosome, ventral; F, urosome, lateral; G, maxilliped, anterior; H, maxilliped, medial view; I, seta VI on caudal ramus, arrow indicating swollen base. Scale bars: A, B, 100 μm; C-H, 50 μm; I, 20 μm.
FIG. 8. — Triconia onnuri n in Two new species of the similis-subgroup of Triconia Böttger- Schnack, 1999 (Copepoda, Oncaeidae) and a redescription of T. denticula Wi, Shin & Soh, 2011 from the northeastern equatorial Pacific
FIG. 8. — Triconia onnuri n. sp. female: A, P1, anterior; B, P2, anterior; C, P3, anterior; D, P4, anterior. Abbreviations: see Material and methods. Scale bar: 50 μm.
FIG. 6. — Triconia onnuri n in Two new species of the similis-subgroup of Triconia Böttger- Schnack, 1999 (Copepoda, Oncaeidae) and a redescription of T. denticula Wi, Shin & Soh, 2011 from the northeastern equatorial Pacific
FIG. 6. — Triconia onnuri n. sp. female: A, habitus, dorsal; B, habitus, lateral; C, urosome, dorsal; D, urosome, lateral; E, P5, dorsal view; F, seta VI on caudal ramus, arrow indicating swollen base. Scale bars: A-D, 100 μm; E, 50 μm; F, 20 μm.
FIG. 5. — Triconia komo n in Two new species of the similis-subgroup of Triconia Böttger- Schnack, 1999 (Copepoda, Oncaeidae) and a redescription of T. denticula Wi, Shin & Soh, 2011 from the northeastern equatorial Pacific
FIG. 5. — Triconia komo n. sp. male: A, habitus, dorsal; B, antennule; C, urosome, lateral; D, urosome, dorsal; E, urosome, ventral; F, maxilliped, anterior, spine fused to inner proximal corner of endopod (= claw) figured separately; G, maxilliped, medial view, ornamentation of palmar margin figured separately. Scale bars: A, 100 μm, B-F, 50 μm.
FIG. 7. — Triconia onnuri n in Two new species of the similis-subgroup of Triconia Böttger- Schnack, 1999 (Copepoda, Oncaeidae) and a redescription of T. denticula Wi, Shin & Soh, 2011 from the northeastern equatorial Pacific
FIG. 7. — Triconia onnuri n. sp. female: A, antennule; B, antenna, posterior; C, mandible; D, maxillule, arrow indicating ornamentation of innermost element on outer lobe; E, maxilla; F, maxilliped; G, labrum, anterior; H, labrum, posterior, arrows indicating dentiform processes. Scale bars: A, C-H, 50 μm; B, 20 μm.
FIG. 4. — Triconia komo n in Two new species of the similis-subgroup of Triconia Böttger- Schnack, 1999 (Copepoda, Oncaeidae) and a redescription of T. denticula Wi, Shin & Soh, 2011 from the northeastern equatorial Pacific
FIG. 4. — Triconia komo n. sp. female: A, P1, anterior; B, P2, anterior; C, P3, anterior; D, P4, anterior. Abbreviations: see Material and methods. Scale bar: 50 μm.
FIG. 3. — Triconia komo n in Two new species of the similis-subgroup of Triconia Böttger- Schnack, 1999 (Copepoda, Oncaeidae) and a redescription of T. denticula Wi, Shin & Soh, 2011 from the northeastern equatorial Pacific
FIG. 3. — Triconia komo n. sp. female: A, antennule; B, antenna, anterior, distal elements on distal endopod segment numbered using capital letters, lateral elements indicated by Roman numerals; C, mandible, individual elements indicated by capital letters; D, maxillule; E, maxilla; F, maxilliped; G, labrum, anterior, arrows indicating pockets; H, labrum, posterior, arrows indicating dentiform processes. Abbreviations: see Material and methods. Scale bars: A, B, 50 μm; C-H, 20 μm.
FIG. 1 in Two new species of the similis-subgroup of Triconia Böttger- Schnack, 1999 (Copepoda, Oncaeidae) and a redescription of T. denticula Wi, Shin & Soh, 2011 from the northeastern equatorial Pacific
FIG. 1. — Location of sampling station (KOMO, KODOS Long-term Monitoring Station) in the northeastern equatorial Pacific Ocean.
FIG. 2. — Triconia komo n in Two new species of the similis-subgroup of Triconia Böttger- Schnack, 1999 (Copepoda, Oncaeidae) and a redescription of T. denticula Wi, Shin & Soh, 2011 from the northeastern equatorial Pacific
FIG. 2. — Triconia komo n. sp. female: A, habitus, dorsal; B, habitus, lateral; C, urosome, dorsal, with setae on caudal rami numbered using Roman numerals; D, urosome, lateral; E, P5, dorsal view. Abbreviations: see Material and methods. Scale bars: A-D, 100 μm; E, 20 μm.
TABLE 2 in Two new species of the similis-subgroup of Triconia Böttger- Schnack, 1999 (Copepoda, Oncaeidae) and a redescription of T. denticula Wi, Shin & Soh, 2011 from the northeastern equatorial Pacific
TABLE 2. — Morphometric variation among individuals of four species of the Triconia similis-subgroup from the northeastern equatorial Pacific: comparison of the length of spines on P2-P4 enp-3 of Triconia komo n. sp., Triconia onnuri n. sp. and Triconia denticula Wi, Shin & Soh, 2011. Abbreviations see material and methods. Symbol: ×, damaged; unit: µm.
FIGURE 5 in Insights into vertebral band pair deposition rate in the juvenile common thresher shark (Alopias vulpinus) in the northeastern Pacific Ocean
FIGURE 5 Number of vertebral band pairs after the oxytetracycline mark compared to days at liberty for Alopias vulpinus at liberty ≥1 year, tagged and recaptured in the northeastern Pacific Ocean (1998–2013) n = 14. The dashed lines represent the relationship of band pairs to days at liberty; the dotted line represents a 1:1 deposition rate of one band pair per year.
FIGURE 4 in Insights into vertebral band pair deposition rate in the juvenile common thresher shark (Alopias vulpinus) in the northeastern Pacific Ocean
FIGURE 4 Age-bias plots for all oxytetracycline (OTC)-marked Alopias vulpinus vertebrae to determine the number of band pairs distal to the birth band (left column), and number of band pairs distal to the OTC mark (right column). Readers 1, 2, and 3 read all sample vertebrae without knowledge of fish ID or time at liberty.
FIGURE 3 in Insights into vertebral band pair deposition rate in the juvenile common thresher shark (Alopias vulpinus) in the northeastern Pacific Ocean
FIGURE 3 An X-ray image of a section showing band pair progression of an oxytetracycline (OTC)-marked Alopias vulpinus recaptured in the northeastern Pacific Ocean. Translucent cartilage (dark bands on image) alternated with more-calcified cartilage (appearing light on image). Opaque, hypermineralized bands are marked with a solid dot; 4 band pairs post birth band and 3.5 band pairs post-OTC. The OTC mark and birth band are labeled. Tagged A. vulpinus A039014 was at liberty 3.81 years, measured 80 cm fork length (LF) at the time of tagging, and 140 cm LF at recapture.
FIGURE 1 in Insights into vertebral band pair deposition rate in the juvenile common thresher shark (Alopias vulpinus) in the northeastern Pacific Ocean
FIGURE 1 Tag and recapture locations for Alopias vulpinus whose vertebrae were used in this study (n = 14), Southern California Bight.
FIGURE 2 in Insights into vertebral band pair deposition rate in the juvenile common thresher shark (Alopias vulpinus) in the northeastern Pacific Ocean
FIGURE 2 Vertebral preparation: (a) standard anatomical planes of a fish; (b) oxytetracycline (OTC) mark fluorescing under UV light; section is cut along the green line (frontal plane); and (c) pin placement with UV light. Image A is adapted from an image in Wilson et al. (1983).
Twelve thousand recent limpets (Mollusca, Patellogastropoda) from a northeastern Pacific latitudinal gradient
<p>Provided here is an image and 2D shape library of 12,035 Recent patellogastropod limpet (Mollusca, Patellogastropoda) shells collected from the northeastern Pacific along a latitudinal gradient ranging from Alaska to Baja, California. 2D outline coordinate data and morphometric measurements were generated using macroscopic high-throughput imaging methods (<em>AutoMorph</em>: https://github.com/HullLab/AutoMorph) developed in P.M. Hull’s lab at Yale University.</p> <p>This dataset is composed of patellogastropoda from 1,256 University of California Museum of Paleontology (UCMP) sample lots (metadata.tar.gz: Table 1). These lots represent multi-species assemblages collected from 353 unique localities along the western coast of North America (metadata.tar.gz: Table 2), ranging from Cape Yakataga, Alaska, United States (60°06’11N) to Cabo San Lucas, Baja California, Mexico (22°89’56N).</p> <p>Images and morphometric data are provided in 7 datasets:</p> <p><strong>1) boxed_full_images.zip: </strong>1,256 full-lot (overview) images with boxed object identified by the <em>segment</em> module.</p> <p><strong>2) zstacks.zip: </strong>image stacks for each of the 1,256 sample lots processed by <em>segment.</em> These image stacks may potentially be used to generate individual 3D height maps.</p> <p><strong>3) 2d_edfs_labeled.zip: </strong>12,035 individual extended-depth-of-focus (EDF) images produced by <em>focus</em>. A list of the individuals represented is provided in TableS1 in metadata.zip.</p> <p><strong>4) 2d_outlines.zip: </strong>12,035 EDF images with 2D outline overlays for quality control.</p> <p><strong>5) 2d_coordinates.zip: </strong>1,256 .csv files of the outline shape coordinates for all lots successfully processed with <em>AutoMorph</em>, including one file (all_coordinates_limpets.csv) with the coordinates for all 12,035 individuals extracted.</p> <p><strong>6) master_2d_measurements.csv: </strong>UCMP locality numbers, UCMP lot numbers, locality coordinates, object identification numbers output by AutoMorph, and morphometric data for all 12,035 individuals. Each individual has associated full-lot, individual EDF, 2D and outline images, as well as outline shape coordinates, all of which may be found in the .zip files listed above. Object identification numbers, which are used to link morphometric measurements with associated images, can be found in the column ‘object IDs’. Morphometric data provided includes major axis length, minor axis length, perimeter length, eccentricity, and rugosity, as well as aspect ratio and the height and width of the aspect rectangle. Locality coordinates are rounded to the nearest 0.1 degree to account for potential measurement uncertainty.</p> <p><strong>7) metadata.zip: </strong>A directory containing 5 tables in corresponding .xslx files. Table 1 provides UCMP specimen and locality numbers, site names, rounded coordinates, and the number of individuals per UCMP lot. Table 2 provides the number of species per site, with locality numbers and species names also provided. Table 3 provides information on the species’ range minima and maxima observed in the present dataset, as well as the number of individuals per species. Table 4 provides a comparison of hand measurements and AutoMorph outputs for 41 specimens, used for measurement validation. Table 5 provides locality information mismatches for three UCMP specimen lots. Table S1 provides a list of all objects included in the dataset, including an indication of which objects have known locality coordinates.</p> <p>The dataset provided accompanies the manuscript “Twelve thousand Recent limpets (Mollusca, Patellogastropoda) from a northeastern Pacific latitudinal gradient” submitted to <em>Scientific Data.</em> This manuscript describes methods of data collection and contains important usage notes, and should thus be consulted before attempting to use the data provided here.</p> <p>This work was funded by the American Chemical Society PRF Grant #55837-DNI8 and by support from Yale University.</p>
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