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Wildlife Population Assessment: Changing Priorities Driven by Technological Advances. JOURNAL OF STATISTICAL THEORY AND PRACTICE 2023. [DOI: 10.1007/s42519-023-00319-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
AbstractAdvances in technology are having a large effect on the priorities for innovation in statistical ecology. Collaborations between statisticians and ecologists have always been important in driving methodological development, but increasingly, expertise from computer scientists and engineers is also needed. We discuss changes that are occurring and that may occur in the future in surveys for estimating animal abundance. As technology advances, we expect classical distance sampling and capture-recapture to decrease in importance, as camera (still and video) survey, acoustic survey, spatial capture-recapture and genetic methods continue to develop and find new applications. We explore how these changes are impacting the work of the statistical ecologist.
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Aulicino G, Cesarano C, Zerrouki M, Ruiz S, Budillon G, Cotroneo Y. On the use of ABACUS high resolution glider observations for the assessment of phytoplankton ocean biomass from CMEMS model products. Ecol Modell 2021. [DOI: 10.1016/j.ecolmodel.2021.109619] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Lee WJ, Staneva V. Compact representation of temporal processes in echosounder time series via matrix decomposition. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2020; 148:3429. [PMID: 33379913 DOI: 10.1121/10.0002670] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 11/02/2020] [Indexed: 06/12/2023]
Abstract
The recent explosion in the availability of echosounder data from diverse ocean platforms has created unprecedented opportunities to observe the marine ecosystems at broad scales. However, the critical lack of methods capable of automatically discovering and summarizing prominent spatio-temporal echogram structures has limited the effective and wider use of these rich datasets. To address this challenge, a data-driven methodology is developed based on matrix decomposition that builds compact representation of long-term echosounder time series using intrinsic features in the data. In a two-stage approach, noisy outliers are first removed from the data by principal component pursuit, then a temporally smooth nonnegative matrix factorization is employed to automatically discover a small number of distinct daily echogram patterns, whose time-varying linear combination (activation) reconstructs the dominant echogram structures. This low-rank representation provides biological information that is more tractable and interpretable than the original data, and is suitable for visualization and systematic analysis with other ocean variables. Unlike existing methods that rely on fixed, handcrafted rules, this unsupervised machine learning approach is well-suited for extracting information from data collected from unfamiliar or rapidly changing ecosystems. This work forms the basis for constructing robust time series analytics for large-scale, acoustics-based biological observation in the ocean.
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Affiliation(s)
- Wu-Jung Lee
- Applied Physics Laboratory, University of Washington, Seattle, Washington 98105, USA
| | - Valentina Staneva
- eScience Institute, University of Washington, Seattle, Washington 98105, USA
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Jones DOB, Gates AR, Huvenne VAI, Phillips AB, Bett BJ. Autonomous marine environmental monitoring: Application in decommissioned oil fields. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 668:835-853. [PMID: 30870752 DOI: 10.1016/j.scitotenv.2019.02.310] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 02/19/2019] [Accepted: 02/19/2019] [Indexed: 06/09/2023]
Abstract
Hundreds of Oil & Gas Industry structures in the marine environment are approaching decommissioning. In most areas decommissioning operations will need to be supported by environmental assessment and monitoring, potentially over the life of any structures left in place. This requirement will have a considerable cost for industry and the public. Here we review approaches for the assessment of the primary operating environments associated with decommissioning - namely structures, pipelines, cuttings piles, the general seabed environment and the water column - and show that already available marine autonomous systems (MAS) offer a wide range of solutions for this major monitoring challenge. Data of direct relevance to decommissioning can be collected using acoustic, visual, and oceanographic sensors deployed on MAS. We suggest that there is considerable potential for both cost savings and a substantial improvement in the temporal and spatial resolution of environmental monitoring. We summarise the trade-offs between MAS and current conventional approaches to marine environmental monitoring. MAS have the potential to successfully carry out much of the monitoring associated with decommissioning and to offer viable alternatives where a direct match for the conventional approach is not possible.
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Affiliation(s)
- Daniel O B Jones
- National Oceanography Centre, University of Southampton Waterfront Campus, Southampton SO14 3ZH, UK.
| | - Andrew R Gates
- National Oceanography Centre, University of Southampton Waterfront Campus, Southampton SO14 3ZH, UK
| | - Veerle A I Huvenne
- National Oceanography Centre, University of Southampton Waterfront Campus, Southampton SO14 3ZH, UK
| | - Alexander B Phillips
- National Oceanography Centre, University of Southampton Waterfront Campus, Southampton SO14 3ZH, UK
| | - Brian J Bett
- National Oceanography Centre, University of Southampton Waterfront Campus, Southampton SO14 3ZH, UK
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Verfuss UK, Aniceto AS, Harris DV, Gillespie D, Fielding S, Jiménez G, Johnston P, Sinclair RR, Sivertsen A, Solbø SA, Storvold R, Biuw M, Wyatt R. A review of unmanned vehicles for the detection and monitoring of marine fauna. MARINE POLLUTION BULLETIN 2019; 140:17-29. [PMID: 30803631 DOI: 10.1016/j.marpolbul.2019.01.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Revised: 12/14/2018] [Accepted: 01/05/2019] [Indexed: 06/09/2023]
Abstract
Recent technology developments have turned present-day unmanned systems into realistic alternatives to traditional marine animal survey methods. Benefits include longer survey durations, improved mission safety, mission repeatability, and reduced operational costs. We review the present status of unmanned vehicles suitable for marine animal monitoring conducted in relation to industrial offshore activities, highlighting which systems are suitable for three main monitoring types: population, mitigation, and focal animal monitoring. We describe the technical requirements for each of these monitoring types and discuss the operational aspects. The selection of a specific sensor/platform combination depends critically on the target species and its behaviour. The technical specifications of unmanned platforms and sensors also need to be selected based on the surrounding conditions of a particular offshore project, such as the area of interest, the survey requirements and operational constraints.
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Affiliation(s)
- Ursula K Verfuss
- SMRU Consulting, New Technology Centre, North Haugh, St Andrews, Fife KY16 9SR, UK.
| | - Ana Sofia Aniceto
- Akvaplan-niva AS, Fram Centre, P.O. Box 6606, Langnes, 9296 Tromsø, Norway
| | - Danielle V Harris
- Centre for Research into Ecological and Environmental Modelling, The Observatory, University of St Andrews, St Andrews, Fife KY16 9LZ, UK
| | - Douglas Gillespie
- Sea Mammal Research Unit, Scottish Oceans Institute, University of St Andrews, Fife KY16 8LB, UK
| | - Sophie Fielding
- British Antarctic Survey, High Cross, Madingley Road, Cambridge CB3 0ET, UK
| | - Guillermo Jiménez
- Seiche Ltd., Bradworthy Industrial Estate, Langdon Road, Bradworthy, Holsworthy, Devon EX22 7SF, UK
| | - Phil Johnston
- Seiche Ltd., Bradworthy Industrial Estate, Langdon Road, Bradworthy, Holsworthy, Devon EX22 7SF, UK
| | - Rachael R Sinclair
- SMRU Consulting, New Technology Centre, North Haugh, St Andrews, Fife KY16 9SR, UK
| | - Agnar Sivertsen
- Norut - Northern Research Institute, Postboks 6434 Forskningsparken, 9294 Tromsø, Norway
| | - Stian A Solbø
- Norut - Northern Research Institute, Postboks 6434 Forskningsparken, 9294 Tromsø, Norway
| | - Rune Storvold
- Norut - Northern Research Institute, Postboks 6434 Forskningsparken, 9294 Tromsø, Norway
| | - Martin Biuw
- Akvaplan-niva AS, Fram Centre, P.O. Box 6606, Langnes, 9296 Tromsø, Norway
| | - Roy Wyatt
- Seiche Ltd., Bradworthy Industrial Estate, Langdon Road, Bradworthy, Holsworthy, Devon EX22 7SF, UK
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