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  • 1
    Online Resource
    Online Resource
    Newark :John Wiley & Sons, Incorporated,
    Keywords: Abyssal zone. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (747 pages)
    Edition: 1st ed.
    ISBN: 9781118332481
    Language: English
    Note: Intro -- Title Page -- Table of Contents -- Contributors -- Foreword -- Preface -- Origin and scope of the book -- Structure of Biological Sampling in the Deep Sea -- Acknowledgements -- References -- Chapter 1: Deep-Sea Benthic Habitats -- 1.1 Introduction -- 1.2 Ecosystem and habitat diversity in the deep sea -- 1.3 Conclusions -- Acknowledgements -- References -- Chapter 2: Deep-Sea Fauna -- 2.1 Introduction -- 2.2 Life forms -- 2.3 Life habits -- 2.4 Adaptations -- 2.5 Spatial distribution patterns -- 2.6 Temporal patterns -- 2.7 Concluding remarks -- Acknowledgements -- References -- Chapter 3: Survey and Sampling Design -- 3.1 Introduction -- 3.2 General survey design -- 3.3 Case studies -- 3.4 Concluding remarks -- References -- Chapter 4: Environmental Sampling -- 4.1 Introduction -- 4.2 Conductivity, temperature and depth -- 4.3 Acoustic Doppler current profilers -- 4.4 Particulate organic matter -- 4.5 Sampling strategies -- 4.6 Future outlook and summary -- Acknowledgements -- References -- Chapter 5: Benthic Habitat Mapping -- 5.1 Introduction -- 5.2 Habitat - what do we mean? -- 5.3 Acquisition of remote-sensed data -- 5.4 Key elements of survey design for habitat mapping -- 5.5 Data processing, categorization and map generation -- 5.6 Acquisition of ground-truth data -- 5.7 Synthesis -- Acknowledgements -- References -- Chapter 6: Deep-Sea Zooplankton Sampling -- 6.1 Introduction -- 6.2 General considerations in deep-sea zooplankton sampling -- 6.3 Examples of zooplankton samplers used in deep-sea studies -- 6.4 Sampling operations -- 6.5 Environmental impact of sampling operations -- Acknowledgements -- References -- Chapter 7: Trawls -- 7.1 Introduction -- 7.2 General description of gear types -- 7.3 Sampling operations -- 7.4 Dealing with rough seafloor -- 7.5 Evaluation of trawl gear performance. , 7.6 Sample sorting and processing -- 7.7 Interpretation of data -- 7.8 Environmental impact considerations -- Acknowledgements -- Appendix 7.1 Net, ground gear and rigging plans for a typical rough-bottom trawl used both commercially and for research on seamounts in the southern hemisphere (Reproduced with permission of NIWA) -- Appendix 7.2 Details of a beam trawl design used by CEFAS in European waters (CEFAS. Reproduced with permission) -- Appendix 7.3 Flow diagram of Scanmar sensor use from the International Bottom Trawl Survey Manual (Reproduced with permission. ICES, 2010) -- References -- Chapter 8: Longlines -- 8.1 General introduction -- 8.2 Gear description, specifications and modifications -- 8.3 Sampling operations -- 8.4 Measurements, metrics and data considerations -- 8.5 Comparisons with other methods that sample fishes -- Acknowledgements -- Appendix 8.1 Characteristics of some longline component materials -- References -- Chapter 9: Epibenthic Sledges -- 9.1 Introduction -- 9.2 Description of dredge and sledge types, specifications and modifications -- 9.3 Sampling operations: how to choose and use a sledge -- 9.4 Sample sorting and processing -- 9.5 Interpretation of data -- 9.6 Concluding remarks -- Acknowledgements -- References -- Chapter 10: Corers and Grabs -- 10.1 Introduction -- 10.2 Description of gear types -- 10.3 Sampling operations -- 10.4 Sample processing -- 10.5 Data interpretation -- References -- Chapter 11: Landers -- 11.1 Introduction -- 11.2 Experimental design -- 11.3 Interpretation of data -- 11.4 Future developments -- Acknowledgements -- References -- Chapter 12: Towed Cameras -- 12.1 Introduction -- 12.2 Towed camera systems -- 12.3 Fundamentals of towed camera imaging systems -- 12.4 Deployment and survey design -- 12.5 Management of images and metadata -- 12.6 Data extraction and analysis. , 12.7 Methods reporting -- 12.8 Summary -- Acknowledgements -- References -- Chapter 13: Submersibles and Remotely Operated Vehicles -- 13.1 Introduction -- 13.2 General descriptions of submersibles and ROVs -- 13.3 Submersible and ROV sample collection gear -- 13.4 Submersible and ROV sample storage gear -- 13.5 Other gear used during submersible and ROV sampling -- 13.6 Submersible and ROV sampling operations -- 13.7 Submersible and ROV sample processing -- Acknowledgements -- References -- Chapter 14: Seafloor Observatories -- 14.1 Introduction -- 14.2 Planning an observatory system -- 14.3 Cabled observatories -- 14.4 Autonomous observatories -- 14.5 Data processing, management and archiving -- 14.6 Outreach for seafloor observatories -- 14.7 The future -- Acknowledgments -- References -- Chapter 15: Sorting, Recording, Preservation and Storage of Biological Samples -- 15.1 Introduction -- 15.2 Pre-voyage preparation -- 15.3 Sorting -- 15.4 Preservation -- 15.5 Sample labelling and recording -- 15.6 Photographing specimens -- 15.7 Sample storage and transport -- Acknowledgements -- Appendix 15.1 Example of forms that help sorting staff with consistent taxonomic identification, recording, and preservation standards -- Appendix 15.2 Shipping of samples in ethanol or formalin -- Appendix 15.3 Recommendations for the completion of a shipping letter (adapted from the Australian Quarantine and Inspection Service, AQIS) for shipping ethanol by air -- References -- Chapter 16: Information Management Strategies for Deep-Sea Biology -- 16.1 Introduction -- 16.2 General information management considerations -- 16.3 Considerations for specific data types -- 16.4 Conclusions -- Acknowledgements -- References -- Chapter 17: Data Analysis Considerations -- 17.1 Introduction -- 17.2 Hypotheses - what is your question?. , 17.3 Faunal data - what type of data do you have? -- 17.4 Environmental data - what should you use? -- 17.5 Sampling biases - how can you account for them? -- 17.6 Stratification and covariance - how can you partition out main effects? -- 17.7 Interpretation - how can you make the best sense of your results? -- References -- Chapter 18: Application of Biological Studies to Governance and Management of the Deep Sea -- 18.1 Introduction -- 18.2 What is managed and who are the managers? -- 18.3 The role of science -- 18.4 Management approaches and needs -- 18.5 Case studies -- 18.6 Biological studies at the science-policy interface -- Acknowledgements -- References -- Chapter 19: The Future of Biological Sampling in the Deep Sea -- 19.1 Introduction -- 19.2 Data collection -- 19.3 Data management -- 19.4 Data analysis -- 19.5 Future motivations for sampling -- Acknowledgements -- Glossary -- Index -- Supplemental Images -- End User License Agreement.
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  • 2
    Publication Date: 2024-04-29
    Description: To investigate sedimentation processes in hadal trenches, sediment cores were collected from Atacama, Kuril-Kamchatka, Kermadec and Mariana Trench regions. We collected 9 sediment cores from Atacama Trench (R/V Sonne SO261; from 2/Mar to 2/Apr/2018), 4 sediment cores from Kuril-Kamchatka Trench (R/V Sonne SO250; from 16/Aug to 26/Sep/2016), 3 sediment cores from Kermadec Trench (R/V Tangaroa; TAN1711 from 24/Nov to 14/Dec/2017), and 2 sediment cores from Mariana Trench (R/V Yokosuka; YK10-11 from 20/Nov to 4/Dec/2010), respectively. Using with these cores, we measured radionuclides (210Pb, 214Pb and 137Cs) and total organic carbon (TOC) profiles to calculate sedimentation, mass accumulation and TOC deposition rates. This dataset contains sapling site locations, 210Pb (and excess 210Pb), 214Pb and 137Cs concentrations and TOC contents of these cores. 14C ages of organic carbon are also measured for Mariana Trench sediment cores. Sedimentation, mass accumulation and organic carbon deposition rates calculated with excess 210Pb profiles and the surface TOC contents are also provided. Datasets about mass accumulation rates from continental shelf to the hadal environments and burial efficiency of organic carbon are compiled from our data and the previously published papers (references are shown in each file). These data are used for preparing figures, tables and the discussions in Oguri et al. (2022).
    Keywords: B_LANDER; BC; Bottom lander; Box corer; Documentation file; File content; focusing factor; GeoB22901-1, Site 1; GeoB22903-1, Site 5; GeoB22904-1, Site 4; GeoB22905-1, Site 3; GeoB22906-1, Site 7; GeoB22907-1, Site 2; GeoB22908-1, Site 10; GeoB22909-2, Site 9; Hadal trench; Kermadec Trench; KuramBio II; Mariana Trench; mass accumulation rate; mass-wasting event; MUC; MultiCorer; North Pacific Ocean; Office Open XML Workbook; organic carbon deposition rate; Radionuclides; Reference/source; Site 6; SO250; SO250_104-1; SO250_16-1; SO250_53-1; SO250_74-1; SO261; SO261_105-1; SO261_116-1; SO261_21-1; SO261_35-1; SO261_48-1; SO261_63-1; SO261_75-1; SO261_8-2; SO261_92-1; Sonne_2; TAN1711; TAN1711_K4; TAN1711_K6; TAN1711_K7; Tangaroa; YK10-11; YK10-11_M1; YK10-11_M2; Yokosuka
    Type: Dataset
    Format: text/tab-separated-values, 29 data points
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  • 3
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    ASLO (Association for the Sciences of Limnology and Oceanography)
    In:  Limnology and Oceanography, 58 (5). pp. 1640-1656.
    Publication Date: 2019-09-23
    Description: During the discovery and description of seven New Zealand methane seep sites, an infaunal assemblage dominated by ampharetid polychaetes was found in association with high seabed methane emission. This ampharetid-bed assemblage had a mean density of 57,000 ± 7800 macrofaunal individuals m−2 and a maximum wet biomass of 274 g m−2, both being among the greatest recorded from deep-sea methane seeps. We investigated these questions: Does the species assemblage present within these ampharetid beds form a distinct seep community on the New Zealand margin? and What type of chemoautotrophic microbes fuel this heterotrophic community? Unlike the other macro-infaunal assemblages, the ampharetid-bed assemblage composition was homogeneous, independent of location. Based on a mixing model of species-specific mass and isotopic composition, combined with published respiration measurements, we estimated that this community consumes 29–90 mmol C m−2 d−1 of methane-fueled biomass; this is 〉 290 times the carbon fixed by anaerobic methane oxidizers in these ampharetid beds. A fatty acid biomarker approach supported the finding that this community, unlike those previously known, consumes primarily aerobic methanotrophic bacteria. Due to the novel microbial fueling and high methane flux rates, New Zealand's ampharetid beds provide a model system to study the influence of metazoan grazing on microbially mediated biogeochemical cycles, including those that involve greenhouse gas emissions
    Type: Article , PeerReviewed
    Format: text
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  • 4
    Publication Date: 2019-02-01
    Description: Increasing interest in deep-seabed mining has raised many questions surrounding its potential environmental impacts and how to assess the impacts’ significance. Under the United Nations Convention on the Law of the Sea (UNCLOS), the International Seabed Authority (ISA) is charged with ensuring effective protection of the marine environment as part of its responsibilities for managing mining in seabed areas beyond national jurisdiction (the Area) on behalf of humankind. This paper examines the international legal context for protection of the marine environment and defining the significant adverse change that can cause “serious harm”, a term used in the ISA Mining Code to indicate a level of harm that strong actions must be taken to avoid. It examines the thresholds and indicators that can reflect significant adverse change and considers the specific vulnerability of the four ecosystems associated with the minerals targeted for mining: (1) manganese (polymetallic) nodules, (2) seafloor massive (polymetallic) sulphides, (3) cobalt-rich (polymetallic) crusts and (4) phosphorites. The distributions and ecological setting, probable mining approaches and the potential environmental impacts of mining are examined for abyssal polymetallic nodule provinces, hydrothermal vents, seamounts and phosphorite-rich continental margins. Discussion focuses on the special features of the marine environment that affect the significance of the predicted environmental impacts and suggests actions that will advance understanding of these impacts.
    Type: Article , PeerReviewed
    Format: text
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  • 5
    Publication Date: 2023-02-08
    Description: Hydrogeological processes influence the morphology, mechanical behavior, and evolution of subduction margins. Fluid supply, release, migration, and drainage control fluid pressure and collectively govern the stress state, which varies between accretionary and nonaccretionary systems. We compiled over a decade of published and unpublished acoustic data sets and seafloor observations to analyze the distribution of focused fluid expulsion along the Hikurangi margin, New Zealand. The spatial coverage and quality of our data are exceptional for subduction margins globally. We found that focused fluid seepage is widespread and varies south to north with changes in subduction setting, including: wedge morphology, convergence rate, seafloor roughness, and sediment thickness on the incoming Pacific plate. Overall, focused seepage manifests most commonly above the deforming backstop, is common on thrust ridges, and is largely absent from the frontal wedge despite ubiquitous hydrate occurrences. Focused seepage distribution may reflect spatial differences in shallow permeability architecture, while diffusive fluid flow and seepage at scales below detection limits are also likely. From the spatial coincidence of fluids with major thrust faults that disrupt gas hydrate stability, we surmise that focused seepage distribution may also reflect deeper drainage of the forearc, with implications for pore-pressure regime, fault mechanics, and critical wedge stability and morphology. Because a range of subduction styles is represented by 800 km of along-strike variability, our results may have implications for understanding subduction fluid flow and seepage globally.
    Type: Article , PeerReviewed
    Format: text
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  • 6
    Publication Date: 2020-07-31
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 7
    Publication Date: 2021-03-25
    Repository Name: EPIC Alfred Wegener Institut
    Type: Conference , notRev
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  • 8
    Publication Date: 2017-01-30
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
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  • 9
    Publication Date: 2022-03-30
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
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  • 10
    Publication Date: 2022-05-25
    Description: Author Posting. © The Author(s), 2013. This is the author's version of the work. It is posted here by permission of Elsevier for personal use, not for redistribution. The definitive version was published in Marine Policy 49 (2014):146-154, doi:10.1016/j.marpol.2013.11.017.
    Description: The United Nations General Assembly in 2006 and 2009 adopted resolutions that call for the identification and protection of vulnerable marine ecosystems (VMEs) from significant adverse impacts of bottom fishing. While general criteria have been produced, there are no guidelines or protocols that elaborate on the process from initial identification through to the protection of VMEs. Here, based upon an expert review of existing practices, a 10-step framework is proposed: 1) Comparatively assess potential VME indicator taxa and habitats in a region; 2) determine VME thresholds; 3) consider areas already known for their ecological importance; 4) compile information on the distributions of likely VME taxa and habitats, as well as related environmental data; 5) develop predictive distribution models for VME indicator taxa and habitats; 6) compile known or likely fishing impacts; 7) produce a predicted VME naturalness distribution (areas of low cumulative impacts); 8) identify areas of higher value to user groups; 9) conduct management strategy evaluations to produce trade-off scenarios; 10) review and re-iterate, until spatial management scenarios are developed that fulfil international obligations and regional conservation and management objectives. To date, regional progress has been piecemeal and incremental. The proposed 10-step framework combines these various experiences into a systematic approach.
    Description: The New Zealand Ministry of Science and Innovation (now known as the Ministry of Business, Innovation and Employment) provided funding for the workshop
    Keywords: High seas ; Vulnerable marine ecosystems ; Systematic conservation planning ; ABNJ ; VME ; RFMO
    Repository Name: Woods Hole Open Access Server
    Type: Preprint
    Format: application/pdf
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