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  • 1
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    An allometric smoothing function to describe the relation between otolith and somatic growth over the lifespan of walleye pollock (Theragra chalcogramma) (2021)
    In:  http://aquaticcommons.org/id/eprint/8860 | 403 | 2012-06-14 17:12:27 | 8860 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-28
    Description: We propose a new equation to describe the relation betweenotolith length (OL) and somatic length (fork length [FL]) of fish for the entire lifespan of the fish. The equation was developed by applying a mathematical smoothing method based on an allometric equation with a constant term for walleye pollock (Theragra chalcogramma) —a species that shows an extended longevity (〉20 years). The most appropriate equation for defining the relation between OL and FL was a four-phase allometric smoothing functionwith three inflection points. The inflection points correspond to the timing of settlement of walleye pollock,changes in sexual maturity, and direction of otolith growth. Allometric smoothing functions describing therelation between short otolith radius and FL, long otolith radius and FL, and FL and body weight were also developed. The proposed allometric smoothing functions cover the entirelifespan of walleye pollock. We term these equations “allometric smoothing functions for otolith and somatic growth over the lifespan of walleye pollock.”
    Keywords: Biology ; Ecology ; Fisheries
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 447-456
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  • 2
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    Hatching date, nursery grounds, and early growth of juvenile walleye pollock (Theragra chalcogramma) off northern Japan* (2021)
    In:  http://aquaticcommons.org/id/eprint/8984 | 403 | 2012-08-03 19:03:11 | 8984 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-06-30
    Description: Walleye pollock (Theragra chalcogramma) is widely distributed in the North Pacific Ocean and plays an important role in coastal subarctic ecosystems. The Japanese Pacific population of this species is one of the most important demersal fishes for commercial fisheries in northern Japan. The population is distributed along the Pacific coast of Hokkaido and the Tohoku area (Fig. 1), which is the southern limit of distribution of the species in the western North Pacific. In Funka Bay, the main spawning ground for this population, pollock spawn from December to March (Kendall and Nakatani, 1992). Planktonic eggs and larvae are transported into the bay, where juveniles usually remain until late July when they reach 60−85 mm in total length (Hayashi et al., 1968; Nakatani and Maeda, 1987). These juvenile pollock then migrate from Funka Bay eastward to the Doto area off southeastern Hokkaido (Honda et al., 2004). Many studies on eggs, larvae, and juveniles of the species have been conducted in or near Funka Bay, but little information is available on the ecology of the early life stages in the Tohoku area. Hashimoto and Ishito (1991) suggested that eggs are transported from Funka Bay southward to the Tohoku area by the coastal branch of the Oyashio Current, but there has been no study to verify this hypothesis.
    Keywords: Biology ; Ecology ; Fisheries
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 468-475
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  • 3
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    Observation of manganese deposits on Kaikata Seamount, Izu-Ogasawara (Bonin) Arc by the Shikai 2000 submersible (1992)
    PANGAEA
    In:  Supplement to: Usui, Akira; Nishimura, Akira (1992): Submersible observations of hydrothermal manganese deposits on the Kaikata Seamount, Izu-Ogasawara (Bonin) Arc. Marine Geology, 106(3-4), 203-216, https://doi.org/10.1016/0025-3227(92)90130-A
    Details
    Publication Date: 2023-08-28
    Description: During Dive 408 of Shinkai 2000 on the flank of the Kaikata Seamount located on the volcanic front of the Izu-Ogasawara (Bonin) Arc, possibly recent hydrothermal manganese deposits were observed on sandy volcanic sediments at water depths of between 800 and 1200 m. The deposits cover almost the entire surface sediment across the manganese belt on the northwestern flank on the seamount on a scale of kilometers. The occurrence of the deposits, seafloor morphology and temperature of the sediments, together with previous shipboard results, lead to a possible model for the formation of the manganese deposits: A low-temperature hydrothermal solution ascends through fractures or faults in the volcanic substrate into permeable volcanic sands and precipitates manganate minerals which cement several centimeters of surface sand as hardpan. More intense and probably intermittent discharge of hydrothermal solution follows and forms many typical ridge-like vents and mounds on the seafloor. Subsequently, pure dense manganate layers developed beneath the semi-consolidated volcanic sandstone and act as a cap to the ascending fluids. The proposed mechanism may be the dominant type of low-temperature hydrothermal mineralization in submarine island-arc volcanoes and rifts. Similar hydrothermal manganese deopsits most probably occur in other active areas of the modern seafloors and in inactive island arcs.
    Keywords: Date/Time of event; Deposit type; DEPTH, sediment/rock; Description; DV408/St_1; DV408/St_2; DV408/St_3; DV408/St_4; Elevation of event; Event label; Kaikata Seamount, Pacific Ocean; Latitude of event; Longitude of event; Na8906; Natsushima; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Position; Quantity of deposit; S2000; Sample ID; Sediment type; Shinkai2000_408-S1; Shinkai2000_408-S2; Shinkai2000_408-S3; Shinkai2000_408-S4; Shinkai2000_DV408; Size; Submersible Shinkai 2000; Substrate type; Uniform resource locator/link to image
    Type: Dataset
    Format: text/tab-separated-values, 32 data points
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  • 4
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    Annotated record of the detailed examination of Mn deposits from R/V Tokaidaigaku Maru II Cruise GDP-11 stations (1977)
    PANGAEA
    In:  Supplement to: Konda, Isao; Matsuoka, Kazumi; Nishimura, Akira; Ohno, Terufumi (1977): Nummulites Boninensis from the Amami Plateau in the Northern Margin of the Philippine Sea. Transactions and proceedings of the Paleontological Society of Japan, 106, 61-71, https://www.jstage.jst.go.jp/article/prpsj1951/1977/106/1977_106_61/_article
    Details
    Publication Date: 2023-08-28
    Description: The eleventh research cruise of Japanese Geodynamics Project in the West Pacific was carried out by the R/V Tokaidaigaku-maru II in August, 1974. During this cruise, in which the authors participated, many traverses of echo sounding and seismic reflection profiling and frequent sampling of bottom sediments were undertaken.
    Keywords: Deposit type; DEPTH, sediment/rock; Description; Dredge; DRG; Elevation of event; Event label; GDP-11; GDP-11-17; GDP-11-22-TN; GDP-11-9; Identification; Latitude of event; Longitude of event; Method/Device of event; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Pacific Ocean; Position; Quantity of deposit; Sediment type; Size; Substrate type; Tokaidaigaku Maru II; Uniform resource locator/link to image; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 30 data points
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  • 5
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    Chemistry of manganese nodules of GH81-4 survey area (2022)
    PANGAEA
    Details
    Publication Date: 2023-08-28
    Description: 103 nodule samples from each station of the GH81-4 survey from R/V Hakurei Maru were split; one half for microscopy on polished sections and one half for X-ray diffraction (XRD) and chemical analyses. The latter half was powdered in air and subjected to XRD analysis. The powder samples were analyzed for Mn, Fe, Cu, Ni, Co, Pb, Zn, Si, and A1 by atomic absorption spectroscopy after borate/carbonate fusion and HC1 dissolution. All concentrations were shown at ll0 C dried base after measurement of water contents (H20-) and LOI (H20+).
    Keywords: Aluminium; Atomic absorption spectrometry (AAS); BC; Box corer; Cobalt; Copper; Deposit type; DEPTH, sediment/rock; Dredge; DRG; Elevation of event; Event label; FFGR; Free-fall grab; Geochemistry; GH81-4; GH81-4-B59; GH81-4-B60; GH81-4-B61; GH81-4-B64; GH81-4-B65; GH81-4-B66; GH81-4-B67; GH81-4-B68; GH81-4-D496; GH81-4-FG311; GH81-4-FG312; GH81-4-FG313; GH81-4-FG314; GH81-4-FG315; GH81-4-FG316-1; GH81-4-FG316-2; GH81-4-FG317; GH81-4-FG322-1; GH81-4-FG322-2; GH81-4-FG327; GH81-4-FG329; GH81-4-FG334; GH81-4-FG335; GH81-4-FG338; GH81-4-FG341-1; GH81-4-FG341-2; GH81-4-FG342; GH81-4-FG343; GH81-4-FG344; GH81-4-FG345; GH81-4-FG350; GH81-4-FG351; GH81-4-FG352; GH81-4-FG353; GH81-4-FG355; GH81-4-FG356; GH81-4-FG357; GH81-4-FG358; GH81-4-FG360; GH81-4-FG361; GH81-4-FG362; GH81-4-FG363; GH81-4-FG364; GH81-4-FG365; GH81-4-FG366; GH81-4-FG367; GH81-4-FG368; GH81-4-FG369; GH81-4-FG370; GH81-4-FG372; GH81-4-FG373; GH81-4-FG374; GH81-4-FG375; GH81-4-FG376; GH81-4-FG377; GH81-4-FG378; GH81-4-FG379; GH81-4-FG380; GH81-4-FG381; GH81-4-FG382; GH81-4-FG384; GH81-4-FG385; GH81-4-FG386; GH81-4-FG387; GH81-4-FG390; GH81-4-FG391; GH81-4-FG392; GH81-4-FG394; GH81-4-FG395; GH81-4-FG396; GH81-4-FG397; GH81-4-FG400; GH81-4-FG402; GH81-4-FG403; GH81-4-FG405; GH81-4-FG407; GH81-4-FG408; GH81-4-FG410; GH81-4-FG412; GH81-4-FG413; GH81-4-FG418; GH81-4-FG422; GH81-4-FG423; GH81-4-FG424; GH81-4-FG425; GH81-4-FG426; GH81-4-P220-H56; GH81-4-P224-H60; GH81-4-P225-H61; GH81-4-P229-H65; Hakurei-Maru No.2 (1980); Identification; Iron; Latitude of event; Lead; Longitude of event; Loss on ignition; Manganese; manganese micronodule; manganese nodule; Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; ocean; Pacific Ocean; PC; Piston corer; sediment; Silicon; Station 2577; Station 2578; Station 2579; Station 2580; Station 2581; Station 2582; Station 2583; Station 2588; Station 2594; Station 2596; Station 2597; Station 2598; Station 2605; Station 2606; Station 2608; Station 2609; Station 2610; Station 2611; Station 2617; Station 2619; Station 2620; Station 2621; Station 2622; Station 2624; Station 2625; Station 2626; Station 2627; Station 2628; Station 2630; Station 2631; Station 2632; Station 2633; Station 2634; Station 2635; Station 2636; Station 2637; Station 2638; Station 2640; Station 2641; Station 2642; Station 2644; Station 2646; Station 2647; Station 2648; Station 2649; Station 2650; Station 2651; Station 2652; Station 2653; Station 2654; Station 2655; Station 2656; Station 2657; Station 2659; Station 2660; Station 2661; Station 2662; Station 2663; Station 2665; Station 2666; Station 2667; Station 2669; Station 2670; Station 2671; Station 2672; Station 2677; Station 2678; Station 2679; Station 2680; Station 2681; Station 2684; Station 2686; Station 2687; Station 2690; Station 2692; Station 2693; Station 2695; Station 2696; Station 2698; Station 2699; Station 2705; Station 2706; Station 2710; Station 2711; Station 2712; Station 2713; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 1233 data points
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  • 6
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    Occurrence of manganese nodules of GH81-4 survey area (2022)
    PANGAEA
    Details
    Publication Date: 2023-08-28
    Description: Local variability of manganese nodule facies and associated sediments were studied around abyssal hills (60 x 60 km²) located in the equatorial zone of the Central Pacific Basin. Small-scale variations in nodule occurrence, mineralogy, chemistry, and internal structure are discussed in relation to seismic records and sediment lithology. The slow sedimentation rate from the late Tertiary to the Quaternary appear to have promoted formation of nodules around the abyssal hills, although the Plio-Pleistocene hiatus at depths below sediment surface suggests no clear evidence of increased growth of nodules during the period. In the area of rapid and continuous sedimentation away from the hill areas, nodules are rare probably because of insufficient lifting force for nodules. Mineralogical and chemical studies reveal that the two principal nodule morphologies (smooth and rough surfaces) result from preferential deposition of hydrogenous or diagenetic manganese minerals in relation to early diagenesis of surface siliceous sediments. Regional variability of nodule-surface morphology and composition suggests a very local change in sedimentary conditions in space, and internal mineral variation suggests changes in sedimentary conditions with time. The geological factors controlling the small-scale variability of nodule facies seem to be similar to those controlling regional-scale variations.
    Keywords: BC; Box corer; Deposit type; DEPTH, sediment/rock; Description; Dredge; DRG; Elevation of event; Event label; FFGR; Free-fall grab; Geochemistry; GH81-4; GH81-4-B59; GH81-4-B60; GH81-4-B61; GH81-4-B64; GH81-4-B65; GH81-4-B66; GH81-4-B67; GH81-4-B68; GH81-4-D496; GH81-4-FG311; GH81-4-FG312; GH81-4-FG313; GH81-4-FG314; GH81-4-FG315; GH81-4-FG316-1; GH81-4-FG316-2; GH81-4-FG317; GH81-4-FG322-1; GH81-4-FG322-2; GH81-4-FG327; GH81-4-FG329; GH81-4-FG334; GH81-4-FG335; GH81-4-FG338; GH81-4-FG341-1; GH81-4-FG341-2; GH81-4-FG342; GH81-4-FG343; GH81-4-FG344; GH81-4-FG345; GH81-4-FG350; GH81-4-FG351; GH81-4-FG352; GH81-4-FG353; GH81-4-FG355; GH81-4-FG356; GH81-4-FG357; GH81-4-FG358; GH81-4-FG360; GH81-4-FG361; GH81-4-FG362; GH81-4-FG363; GH81-4-FG364; GH81-4-FG365; GH81-4-FG366; GH81-4-FG367; GH81-4-FG368; GH81-4-FG369; GH81-4-FG370; GH81-4-FG372; GH81-4-FG373; GH81-4-FG374; GH81-4-FG375; GH81-4-FG376; GH81-4-FG377; GH81-4-FG378; GH81-4-FG379; GH81-4-FG380; GH81-4-FG381; GH81-4-FG382; GH81-4-FG384; GH81-4-FG385; GH81-4-FG386; GH81-4-FG387; GH81-4-FG390; GH81-4-FG391; GH81-4-FG392; GH81-4-FG394; GH81-4-FG395; GH81-4-FG396; GH81-4-FG397; GH81-4-FG400; GH81-4-FG402; GH81-4-FG403; GH81-4-FG405; GH81-4-FG407; GH81-4-FG408; GH81-4-FG410; GH81-4-FG412; GH81-4-FG413; GH81-4-FG418; GH81-4-FG422; GH81-4-FG423; GH81-4-FG424; GH81-4-FG425; GH81-4-FG426; GH81-4-P220-H56; GH81-4-P224-H60; GH81-4-P225-H61; GH81-4-P229-H65; Hakurei-Maru No.2 (1980); Identification; Latitude of event; Longitude of event; manganese micronodule; manganese nodule; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Nodule, areal coverage; Nodules; Nodules, mass abundance; ocean; Pacific Ocean; PC; Piston corer; sediment; Station 2577; Station 2578; Station 2579; Station 2580; Station 2581; Station 2582; Station 2583; Station 2588; Station 2594; Station 2596; Station 2597; Station 2598; Station 2605; Station 2606; Station 2608; Station 2609; Station 2610; Station 2611; Station 2617; Station 2619; Station 2620; Station 2621; Station 2622; Station 2624; Station 2625; Station 2626; Station 2627; Station 2628; Station 2630; Station 2631; Station 2632; Station 2633; Station 2634; Station 2635; Station 2636; Station 2637; Station 2638; Station 2640; Station 2641; Station 2642; Station 2644; Station 2646; Station 2647; Station 2648; Station 2649; Station 2650; Station 2651; Station 2652; Station 2653; Station 2654; Station 2655; Station 2656; Station 2657; Station 2659; Station 2660; Station 2661; Station 2662; Station 2663; Station 2665; Station 2666; Station 2667; Station 2669; Station 2670; Station 2671; Station 2672; Station 2677; Station 2678; Station 2679; Station 2680; Station 2681; Station 2684; Station 2686; Station 2687; Station 2690; Station 2692; Station 2693; Station 2695; Station 2696; Station 2698; Station 2699; Station 2705; Station 2706; Station 2710; Station 2711; Station 2712; Station 2713
    Type: Dataset
    Format: text/tab-separated-values, 1141 data points
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  • 7
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    Chemistry of Pliocene-Pleistocene pumice from the Izu-Bonin Arc (1992)
    PANGAEA
    In:  Supplement to: Nishimura, Akira; Rodolfo, Kelvin S; Koizumi, Akiko; Gill, James B; Fujioka, Kantaro (1992): Episodic deposition of Pliocene-Pleistocene pumice from the Izu-Bonin Arc, Leg 126. In: Taylor, B; Fujioka, K; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 126, 3-21, https://doi.org/10.2973/odp.proc.sr.126.115.1992
    Details
    Publication Date: 2024-01-09
    Description: Thick pumice deposits were found in the cored sequences of forearc, arc, and backarc sites of Leg 126 in the Izu-Bonin Arc. These deposits, composed of fragmental rhyolite pumice with the chemical composition of low-alkali tholeiites, are products of arc volcanism. Pumice deposits constitute more than half of the thickness of the sediment fill of the Sumisu Rift, a backarc rift of the Izu-Bonin Arc. They comprise five thick pumiceous beds separated by thin hemipelagic units; as such, they record four major episodes or pulses of explosive, rhyolitic volcanism during the last 0.15 Ma, separated by quiescent intervals that each lasted about 30-60 k.y. The thick pumiceous beds were deposited in the rift mainly by sediment gravity flows during and immediately after the eruption of arc volcanos, which were probably submarine. Initiation of rifting was also preceded in the Pliocene by submarine rhyolitic volcanism, as seen in samples from the top of the eastern rift flank. Thick pumice beds correlative with those in the backarc also occur in the forearc basin to the east.
    Keywords: 125-785A; 126-788C; 126-790B; 126-790C; 126-791A; 126-793A; DRILL; Drilling/drill rig; Joides Resolution; Leg125; Leg126; North Pacific Ocean; Ocean Drilling Program; ODP; Philippine Sea
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 8
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    (Table 1) Volcanic ash layers at ODP Site 126-790 (1992)
    PANGAEA
    Details
    Publication Date: 2024-01-09
    Keywords: -; 126-790B; 126-790C; Description; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Event label; Joides Resolution; Layer description; Leg126; Number; Ocean Drilling Program; ODP; Philippine Sea; Sample code/label
    Type: Dataset
    Format: text/tab-separated-values, 507 data points
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  • 9
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    (Appendix B) Chemical composition of the tephra layers of ODP Site 126-792 and 126-793 (1992)
    PANGAEA
    Details
    Publication Date: 2024-01-09
    Keywords: 126-792A; Alkali; Alkali, standard deviation; Aluminium oxide; Aluminium oxide, standard deviation; Calcium oxide; Calcium oxide, standard deviation; Chromium(III) oxide; Chromium(III) oxide, standard deviation; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Electron microprobe (EMP); Elements, total; Iron oxide, FeO; Iron oxide, FeO, standard deviation; Joides Resolution; Leg126; Magnesium oxide; Magnesium oxide, standard deviation; Manganese oxide; Manganese oxide, standard deviation; Nickel oxide; Nickel oxide, standard deviation; North Pacific Ocean; Ocean Drilling Program; ODP; Potassium oxide; Potassium oxide, standard deviation; Sample code/label; Sample comment; Silicon dioxide; Silicon dioxide, standard deviation; Sodium oxide; Sodium oxide, standard deviation; Standard deviation; Titanium dioxide; Titanium dioxide, standard deviation; Vanadium, standard deviation; Vanadium oxide
    Type: Dataset
    Format: text/tab-separated-values, 9214 data points
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  • 10
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    (Table 3) Grain-size analyses for ODP Leg 126 samples (1992)
    PANGAEA
    Details
    Publication Date: 2024-01-09
    Keywords: 126-788C; 126-790; 126-791A; COMPCORE; Composite Core; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Event label; Joides Resolution; Leg126; Ocean Drilling Program; ODP; Philippine Sea; Sample code/label; Size fraction 〈 1.75 phi; Size fraction 0.037-0.032 mm, 4.75-5.00 phi; Size fraction 0.044-0.037 mm, 4.50-4.75 phi; Size fraction 0.053-0.044 mm, 4.25-4.50 phi; Size fraction 0.063-0.053 mm, 4.00-4.25 phi; Size fraction 0.074-0.063 mm, 3.75-4.00 phi; Size fraction 0.088-0.074 mm, 3.50-3.75 phi; Size fraction 0.105-0.088 mm, 3.25-3.50 phi; Size fraction 0.125-0.105 mm, 3.00-3.25 phi; Size fraction 0.149-0.125 mm, 2.75-3.00 phi; Size fraction 0.177-0.149 mm, 2.50-2.75 phi; Size fraction 0.210-0.177 mm, 2.25-2.50 phi; Size fraction 0.250-0.210 mm, 2.00-2.25 phi; Size fraction 0.297-0.250 mm, 1.75-2.00 phi; Size fraction 5.0-6.0 phi; Size fraction 6.0-7.0 phi
    Type: Dataset
    Format: text/tab-separated-values, 1054 data points
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