cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5281/zenodo.17546738
title: SCOPE 2016 Particle Enrichment Experiments, PC/PN, TOC, Picoplankton Abundances

description: SCOPE 2016 Particle Enrichment Experiments, PC/PN, TOC, Picoplankton Abundances

Samples were collected during the HOT 286, HOT 291, HOT 292, and KOK 1703 cruises in the North Pacific Ocean.  Concentrations of particulate carbon, nitrogen, and total organic carbon were determined from experiments where whole seawater was amended with sinking particles. Particles were collected using a large diameter (1 m), surface-tethered, 50 μm nylon mesh net trap. The net trap was hung at 175 m for 24 h. Collected particles were concentrated in the net's cod-end and subsampled using a Folsom plankton splitter; these sample splits were subsequently screened through a 335-μm mesh to remove large zooplankton. The screened splits were then further divided into ten 100 mL aliquots using a McLane Wet Sample Divider and triplicate splits were pooled. 300 mL of the pooled splits were added to triplicate 10-liter carboys containing seawater collected from the same depth as the net trap deployment (175 m). Unamended seawater controls (no particle amendments) consisted of triplicate 10-liter carboys filled with seawater collected from 175 m from the same cast as the seawater used for the particle-amended treatments. Carboys were subsampled for subsequent laboratory analyses of particulate carbon, nitrogen, and total organic carbon. For total organic carbon analyses, seawater from each carboy was subsampled into acid-cleaned 125 mL polyethylene bottles and frozen at −20°C. Total organic C concentrations were measured by high temperature combustion using a Shimadzu TOC-V. For particulate C determinations, 2–4 L of seawater was subsampled from each carboy and filtered onto precombusted glass fiber filters (Whatman GF/F) and filters were analyzed by  using an Exeter CE-440 Elemental Analyzer. Picoplankton abundances were determined by flow cytometry. Aliquots (1.9 mL) were subsampled and preserved with 0.8% paraformaldehyde (final concentration; EM grade, Electron Microscopy Sciences). Samples were flash frozen in liquid nitrogen, and stored at -80C. Picoplankton abundances were quantified using an Attune NxT acoustic focusing cytometer after staining with SYBR Green I (488/530 nm excitation/emission wavelengths).

The timestamp is in UTC.
DOI: 10.5281/zenodo.17459403
title: SCOPE 2016 Particle Enrichment Experiments, PC/PN, TOC, Picoplankton Abundances

description: SCOPE 2016 Particle Enrichment Experiments, PC/PN, TOC, Picoplankton Abundances

Samples were collected during the HOT 286, HOT 291, HOT 292, and KOK 1703 cruises in the North Pacific Ocean.  Concentrations of particulate carbon, nitrogen, and total organic carbon were determined from experiments where whole seawater was amended with sinking particles. Particles were collected using a large diameter (1 m), surface-tethered, 50 μm nylon mesh net trap. The net trap was hung at 175 m for 24 h. Collected particles were concentrated in the net's cod-end and subsampled using a Folsom plankton splitter; these sample splits were subsequently screened through a 335-μm mesh to remove large zooplankton. The screened splits were then further divided into ten 100 mL aliquots using a McLane Wet Sample Divider and triplicate splits were pooled. 300 mL of the pooled splits were added to triplicate 10-liter carboys containing seawater collected from the same depth as the net trap deployment (175 m). Unamended seawater controls (no particle amendments) consisted of triplicate 10-liter carboys filled with seawater collected from 175 m from the same cast as the seawater used for the particle-amended treatments. Carboys were subsampled for subsequent laboratory analyses of particulate carbon, nitrogen, and total organic carbon. For total organic carbon analyses, seawater from each carboy was subsampled into acid-cleaned 125 mL polyethylene bottles and frozen at −20°C. Total organic C concentrations were measured by high temperature combustion using a Shimadzu TOC-V. For particulate C determinations, 2–4 L of seawater was subsampled from each carboy and filtered onto precombusted glass fiber filters (Whatman GF/F) and filters were analyzed by  using an Exeter CE-440 Elemental Analyzer. Picoplankton abundances were determined by flow cytometry. Aliquots (1.9 mL) were subsampled and preserved with 0.8% paraformaldehyde (final concentration; EM grade, Electron Microscopy Sciences). Samples were flash frozen in liquid nitrogen, and stored at -80C. Picoplankton abundances were quantified using an Attune NxT acoustic focusing cytometer after staining with SYBR Green I (488/530 nm excitation/emission wavelengths).

The timestamp is in UTC.
DOI: 10.14286/bjkpp5
title: OTN Canada Pacific Sockeye Salmon Tagging Project 2

description: This is the OBIS extraction of the Ocean Tracking Network and University of British Columbia (UBC) OTN Canada Pacific Sockeye Salmon Tagging Project 2, consisting of the release tagging metadata, i.e. the location and date when the tagged animal was released, and summarized detection events of tagged individuals.
 If readers are interested in the source dataset they may also inquire with the project PIs as listed here or on the OTN web site (https://members.oceantrack.org/project?ccode=NEP.PSS2).Abstract:The objective is to assess the speed of outmigration, and location and level of mortality in freshwater and coastal areas, for individual smolts from Chilko Lake, a population situated 750 km inland from the ocean and is the highest elevation rearing lake for sockeye salmon in Canada. In spring 2010, 200 2-yr old juveniles were captured as they initiated their smolt outmigration and surgically implanted with acoustic transmitters. Sentinel acoustic receivers situated near the release site and in the lower Fraser River, and acoustic curtains associated with POST were used to determine travel rates and locales and levels of mortality. Preliminary results indicate that smolts travelled at ~ 1-2 km/h during the initial sections of their migration through turbulent and clear water environments, and final sections, which were turbid and tidally influenced, of the freshwater migration. But they travelled ~ 5 km/h through the expansive fast flowing sections in between. Diel patterns were evident. On average fish reached the ocean in ~ 8 days with a range of 5-17 days among fish. Survival to reach the estuary is estimated at 20-30% and 15-20% to reach the first POST acoustic curtain situated in Northern Strait of Georgia about 180 km from the Fraser River mouth. We await the downloads of the other POST acoustic curtains to assess survival beyond this first acoustic receiver curtain. Of concern is that at present, POST does not have the funding available to download all of its Canadian curtains (e.g. the Queen Charlotte Strait line) and it is unclear when or if this will happen.
DOI: 10.14286/rfv7e2
title: Hinch Tags

description: This is the OBIS extraction of the Ocean Tracking Network and University of British Columbia (UBC) Hinch Tags, consisting of the release tagging metadata, i.e. the location and date when the tagged animal was released, and summarized detection events of tagged individuals.
 If readers are interested in the source dataset they may also inquire with the project PIs as listed here or on the OTN web site (https://members.oceantrack.org/project?ccode=NEP.HNCH).Abstract:The Pacific Ocean Shelf Tracking (POST) project was designed to develop and promote the application of acoustic tagging technology to study the life history of Pacific salmon and other species migrating along the continental shelf of western North America. POST envisioned the eventual creation of a permanent continental-scale telemetry system, however, during its existence more limited pilot-scale arrays were deployed, primarily concentrated in the Pacific Northwest. These included several acoustic receiver curtains between Vancouver Island and the mainland, creating an excellent means by which to monitor coastal marine animal migrations, especially by juvenile salmonids (smolts) migrating to sea (see projects QCS, JDF and NSOG). In addition to arrays on the continental shelf, POST equipment was deployed upstream and in the estuaries of several major salmon-producing rivers. POST arrays, and POST data, were incorporated into the OTN in 2012. The integration of these arrays, their equipment and the associated animal tagging projects into OTN's global network allowed for international, widespread monitoring of important species within the Northeast Pacific Ocean. Tracking data generated from the POST arrays can be applied to the development of fishery management policies aimed at the sustainable harvest of resources, and to the understanding and conservation of other marine and diadromous species. Additional details about specific tracking projects which were originally a part of POST are only available by contacting the associated researcher.
DOI: 10.14286/2ed1h1
title: Effects of ultraviolet radiation exposure on salmon smolt mortality

description: This is the OBIS extraction of the Ocean Tracking Network and University of Washington (UWash) Effects of ultraviolet radiation exposure on salmon smolt mortality, consisting of the release tagging metadata, i.e. the location and date when the tagged animal was released, and summarized detection events of tagged individuals.
 If readers are interested in the source dataset they may also inquire with the project PIs as listed here or on the OTN web site (https://members.oceantrack.org/project?ccode=NEP.MLNCHK).Abstract:Marine survival rates of many juvenile salmon populations have declined in recent decades. Although several potential causes have been proposed, there has been little conclusive evidence for which factors are responsible or not responsible for these declines. We experimen- tally addressed the hypothesis that exposure of coho salmon Oncorhynchus kisutch or sockeye salmon O. nerka to solar ultraviolet-B radiation (UVB) during freshwater rearing of fry and parr life-history stages increases mortality at the time of smoltification and ocean entry. Juvenile coho and sockeye salmon were reared in outdoor hatchery tanks either exposed to full spectrum sun- light or shielded from UVB radiation by plastic screens for up to 9 mo prior to release. Smolts were tagged with acoustic transmitters and detected with hydrophone receivers during their downriver and early ocean migration. Survival of treatment groups was compared using Cormack-Jolly- Seber and Burnham mark-recapture models. While exposure to UVB resulted in decreased growth of juvenile coho salmon, survivorship during the early marine period was unaffected by the UVB treatment for both populations. This first attempt to experimentally address the hypo - thesis of impaired survival resulting from solar UVB radiation has shown that other factors are more likely responsible for observed declines in salmon marine survival rates. Taken directly from Melnychuk MC, Walters CJ, Christensen V, Bothwell ML, and Welch DW. 2012. Effects of solar ultraviolet radiation exposure on early ocean survival and fry-to-smolt growth of juvenile salmon. Marine Ecology Progress Series 457: 251–264. doi:10.3354/meps09426
DOI: 10.14286/bk1oeg
title: Noakes Tags

description: This is the OBIS extraction of the Ocean Tracking Network and Oregon State University (OSU) Noakes Tags, consisting of the release tagging metadata, i.e. the location and date when the tagged animal was released, and summarized detection events of tagged individuals.
 If readers are interested in the source dataset they may also inquire with the project PIs as listed here or on the OTN web site (https://members.oceantrack.org/project?ccode=NEP.NOAK).Abstract:The Pacific Ocean Shelf Tracking (POST) project was designed to develop and promote the application of acoustic tagging technology to study the life history of Pacific salmon and other species migrating along the continental shelf of western North America. POST envisioned the eventual creation of a permanent continental-scale telemetry system, however, during its existence more limited pilot-scale arrays were deployed, primarily concentrated in the Pacific Northwest. These included several acoustic receiver curtains between Vancouver Island and the mainland, creating an excellent means by which to monitor coastal marine animal migrations, especially by juvenile salmonids (smolts) migrating to sea (see projects QCS, JDF and NSOG). In addition to arrays on the continental shelf, POST equipment was deployed upstream and in the estuaries of several major salmon-producing rivers. POST arrays, and POST data, were incorporated into the OTN in 2012. The integration of these arrays, their equipment and the associated animal tagging projects into OTN's global network allowed for international, widespread monitoring of important species within the Northeast Pacific Ocean. Tracking data generated from the POST arrays can be applied to the development of fishery management policies aimed at the sustainable harvest of resources, and to the understanding and conservation of other marine and diadromous species. Additional details about specific tracking projects which were originally a part of POST are only available by contacting the associated researcher.
DOI: 10.14286/us57ue
title: Essington Tags

description: This is the OBIS extraction of the Ocean Tracking Network and University of Washington (UWash) Essington Tags, consisting of the release tagging metadata, i.e. the location and date when the tagged animal was released, and summarized detection events of tagged individuals.
 If readers are interested in the source dataset they may also inquire with the project PIs as listed here or on the OTN web site (https://members.oceantrack.org/project?ccode=NEP.ESS).Abstract:The Pacific Ocean Shelf Tracking (POST) project was designed to develop and promote the application of acoustic tagging technology to study the life history of Pacific salmon and other species migrating along the continental shelf of western North America. POST envisioned the eventual creation of a permanent continental-scale telemetry system, however, during its existence more limited pilot-scale arrays were deployed, primarily concentrated in the Pacific Northwest. These included several acoustic receiver curtains between Vancouver Island and the mainland, creating an excellent means by which to monitor coastal marine animal migrations, especially by juvenile salmonids (smolts) migrating to sea (see projects QCS, JDF and NSOG). In addition to arrays on the continental shelf, POST equipment was deployed upstream and in the estuaries of several major salmon-producing rivers. POST arrays, and POST data, were incorporated into the OTN in 2012. The integration of these arrays, their equipment and the associated animal tagging projects into OTN's global network allowed for international, widespread monitoring of important species within the Northeast Pacific Ocean. Tracking data generated from the POST arrays can be applied to the development of fishery management policies aimed at the sustainable harvest of resources, and to the understanding and conservation of other marine and diadromous species. Additional details about specific tracking projects which were originally a part of POST are only available by contacting the associated researcher.
DOI: 10.14286/pmvczs
title: Balfry Tags

description: This is the OBIS extraction of the Ocean Tracking Network and Vancouver Aquarium (VanAqua) Balfry Tags, consisting of the release tagging metadata, i.e. the location and date when the tagged animal was released, and summarized detection events of tagged individuals.
 If readers are interested in the source dataset they may also inquire with the project PIs as listed here or on the OTN web site (https://members.oceantrack.org/project?ccode=NEP.BALF).Abstract:The Pacific Ocean Shelf Tracking (POST) project was designed to develop and promote the application of acoustic tagging technology to study the life history of Pacific salmon and other species migrating along the continental shelf of western North America. POST envisioned the eventual creation of a permanent continental-scale telemetry system, however, during its existence more limited pilot-scale arrays were deployed, primarily concentrated in the Pacific Northwest. These included several acoustic receiver curtains between Vancouver Island and the mainland, creating an excellent means by which to monitor coastal marine animal migrations, especially by juvenile salmonids (smolts) migrating to sea (see projects QCS, JDF and NSOG). In addition to arrays on the continental shelf, POST equipment was deployed upstream and in the estuaries of several major salmon-producing rivers. POST arrays, and POST data, were incorporated into the OTN in 2012. The integration of these arrays, their equipment and the associated animal tagging projects into OTN's global network allowed for international, widespread monitoring of important species within the Northeast Pacific Ocean. Tracking data generated from the POST arrays can be applied to the development of fishery management policies aimed at the sustainable harvest of resources, and to the understanding and conservation of other marine and diadromous species. Additional details about specific tracking projects which were originally a part of POST are only available by contacting the associated researcher.
DOI: 10.14286/wrwubr
title: Kintama 2004-2011 tags

description: This is the OBIS extraction of the Ocean Tracking Network and Kintama Research Services (KRS) Kintama 2004-2011 tags, consisting of the release tagging metadata, i.e. the location and date when the tagged animal was released, and summarized detection events of tagged individuals.
 If readers are interested in the source dataset they may also inquire with the project PIs as listed here or on the OTN web site (https://members.oceantrack.org/project?ccode=NEP.KNTM).Abstract:The Pacific Ocean Shelf Tracking (POST) project was designed to develop and promote the application of acoustic tagging technology to study the life history of Pacific salmon and other species migrating along the continental shelf of western North America. POST envisioned the eventual creation of a permanent continental-scale telemetry system, however, during its existence more limited pilot-scale arrays were deployed, primarily concentrated in the Pacific Northwest. These included several acoustic receiver curtains between Vancouver Island and the mainland, creating an excellent means by which to monitor coastal marine animal migrations, especially by juvenile salmonids (smolts) migrating to sea (see projects QCS, JDF and NSOG). In addition to arrays on the continental shelf, POST equipment was deployed upstream and in the estuaries of several major salmon-producing rivers. POST arrays, and POST data, were incorporated into the OTN in 2012. The integration of these arrays, their equipment and the associated animal tagging projects into OTN's global network allowed for international, widespread monitoring of important species within the Northeast Pacific Ocean. Tracking data generated from the POST arrays can be applied to the development of fishery management policies aimed at the sustainable harvest of resources, and to the understanding and conservation of other marine and diadromous species. Additional details about specific tracking projects which were originally a part of POST are only available by contacting the associated researcher.
DOI: 10.14286/xq1kmk
title: Macfarlane Tags

description: This is the OBIS extraction of the Ocean Tracking Network and Southwest Fisheries Science Center NOAA (NOAA-SWFSC) Macfarlane Tags, consisting of the release tagging metadata, i.e. the location and date when the tagged animal was released, and summarized detection events of tagged individuals.
 If readers are interested in the source dataset they may also inquire with the project PIs as listed here or on the OTN web site (https://members.oceantrack.org/project?ccode=NEP.MACFL).Abstract:The Pacific Ocean Shelf Tracking (POST) project was designed to develop and promote the application of acoustic tagging technology to study the life history of Pacific salmon and other species migrating along the continental shelf of western North America. POST envisioned the eventual creation of a permanent continental-scale telemetry system, however, during its existence more limited pilot-scale arrays were deployed, primarily concentrated in the Pacific Northwest. These included several acoustic receiver curtains between Vancouver Island and the mainland, creating an excellent means by which to monitor coastal marine animal migrations, especially by juvenile salmonids (smolts) migrating to sea (see projects QCS, JDF and NSOG). In addition to arrays on the continental shelf, POST equipment was deployed upstream and in the estuaries of several major salmon-producing rivers. POST arrays, and POST data, were incorporated into the OTN in 2012. The integration of these arrays, their equipment and the associated animal tagging projects into OTN's global network allowed for international, widespread monitoring of important species within the Northeast Pacific Ocean. Tracking data generated from the POST arrays can be applied to the development of fishery management policies aimed at the sustainable harvest of resources, and to the understanding and conservation of other marine and diadromous species. Additional details about specific tracking projects which were originally a part of POST are only available by contacting the associated researcher.
DOI: 10.13012/b2idb-7913244_v1
title: Data for Photoenzymatic Asymmetric Hydroamination for Chiral Alkyl Amine Synthesis

description: Chiral alkyl amines are common structural motifs in pharmaceuticals, natural products, synthetic intermediates, and bioactive molecules. An attractive method to prepare these molecules is the asymmetric radical hydroamination; however, this approach has not been explored with dialkyl amine-derived nitrogen-centered radicals since designing a catalytic system to generate the aminium radical cation, to suppress deleterious side reactions such as α-deprotonation and H atom abstraction, and to facilitate enantioselective hydrogen atom transfer is a formidable task. Herein, we describe the application of photoenzymatic catalysis to generate and harness the aminium radical cation for asymmetric intermolecular hydroamination. In this reaction, the flavin-dependent ene-reductase photocatalytically generates the aminium radical cation from the corresponding hydroxylamine and catalyzes the asymmetric intermolecular hydroamination to furnish the enantioenriched tertiary amine, whereby enantioinduction occurs through enzyme-mediated hydrogen atom transfer. This work highlights the use of photoenzymatic catalysis to generate and control highly reactive radical intermediates for asymmetric synthesis, addressing a long-standing challenge in chemical synthesis.
DOI: 10.7910/dvn/5zawxq
title: Replication Data for: Preemptive Multipartism and Democratic Transitions

description: Students of authoritarian rule debate whether the presence of multiple parties in the legislature stabilizes dictatorships or promotes their demise. We show that authoritarian regimes face a quandary: allowing for multipartism reduces the risk of bottom-up revolt, but paves the way for protracted top-down democratization. Concessions to the opposition diminish the long-term benefits of authoritarian rule and empower regime soft-liners. We provide evidence from Latin America—a region with a broad range of authoritarian regimes—and test our theory using survival models, instrumental variable estimators, random forest ensembles, and two case studies. Our theory explains why rational autocrats accept multipartism, even though this concession may ultimately undermine the regime. It also accounts for democratic transitions that occur when the opposition is fragmented and in the absence of a stunning authoritarian defeat.