Underwater acoustics for ecosystem-based management: state of the science and proposals for ecosystem indicators

Trenkel, Verena M.; Ressler, Patrick H.; Jech, Mike; Giannoulaki, Marianna; Taylor, Chris

doi:10.3354/meps09425

Cited by 108 publications

(54 citation statements)

References 141 publications

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“…Multiple frequency scientific echosounders with split-beams and resulting echo-trace analysis (using frequency responses) can provide information on the sizes of animals, thus allowing some distinctions to be made. Despite the fact that the underwater acoustic instruments do not allow species classification (Knudsen and Larsson, 2009), they could be useful to gain information on pelagic and semi-demersal species as well as on zooplankton assemblages (Trenkel et al, 2011; Table 2). The Acoustic Complexity Index (ACI) coupled with a software dedicated to soundscape analysis can be used to elaborate collected acoustic files, in order to track the various biological signals, their daily and nightly dynamics and distinguish them from noise pollution.…”

Section: Acoustic Monitoringmentioning

confidence: 99%

Implementing and Innovating Marine Monitoring Approaches for Assessing Marine Environmental Status

et al. 2016

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Marine environmental monitoring has tended to focus on site-specific methods of investigation. These traditional methods have low spatial and temporal resolution and are relatively labor intensive per unit area/time that they cover. To implement the Marine Strategy Framework Directive (MSFD), European Member States are required to improve marine monitoring and design monitoring networks. This can be achieved by developing and testing innovative and cost-effective monitoring systems, as well as indicators of environmental status. Here, we present several recently developed methodologies and technologies to improve marine biodiversity indicators and monitoring methods. The innovative tools are discussed concerning the technologies presently utilized as well as the advantages and disadvantages of their use in routine monitoring. In particular, the present analysis focuses on: (i) molecular approaches, including microarray, Real Time quantitative PCR (qPCR), and metagenetic (metabarcoding) tools; (ii) optical (remote) sensing and acoustic methods; and (iii) in situ monitoring instruments. We also discuss Danovaro et al. Innovative Approaches in Marine Monitoring their applications in marine monitoring within the MSFD through the analysis of case studies in order to evaluate their potential utilization in future routine marine monitoring. We show that these recently-developed technologies can present clear advantages in accuracy, efficiency and cost.

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Section: Acoustic Monitoringmentioning

confidence: 99%

Implementing and Innovating Marine Monitoring Approaches for Assessing Marine Environmental Status

et al. 2016

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“…As summarized previously (Trenkel et al, 2011), acousticderived abundance indices have long been used in single stock assessments and will remain important under descriptor 3. Fisheries acoustic data could however have applications beyond that: the spatial range, distribution or other measures of spatial occupancy of a species (Woillez et al, 2007) could also be included as important indicators and are readily extracted from acoustic survey data.…”

Section: Acousticsmentioning

confidence: 99%

“…Due to complexities in species identification in acoustic data, biodiversity indicators (MSFD descriptor 1) at species level remain a challenge. However, in the absence of species-specific information, surrogates for species, such as coarser taxonomic groupings, size groups, or groups distinguished by their multi-frequency backscattering could well prove useful (Godø, 2009;Trenkel et al, 2011).…”

Section: Acousticsmentioning

confidence: 99%

A Review of the Tools Used for Marine Monitoring in the UK: Combining Historic and Contemporary Methods with Modeling and Socioeconomics to Fulfill Legislative Needs and Scientific Ambitions

et al. 2017

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Marine environmental monitoring is undertaken to provide evidence that environmental management targets are being met. Moreover, monitoring also provides context to marine science and over the last century has allowed development of a critical scientific understanding of the marine environment and the impacts that humans are having on it. The seas around the UK are currently monitored by targeted, impact-driven, programmes (e.g., fishery or pollution based monitoring) often using traditional techniques, many of which have not changed significantly since the early 1900s. The advent of a new wave of automated technology, in combination with changing political and economic circumstances, means that there is currently a strong drive to move toward a more refined, efficient, and effective way of monitoring. We describe the policy and scientific rationale for monitoring our seas, alongside a comprehensive description of the types of equipment and methodology currently used and the technologies that are likely to be used in the future. We contextualize the way new technologies and methodologies may impact monitoring and discuss how whole ecosystems models can give an integrated, comprehensive approach to impact assessment. Furthermore, we discuss how an understanding of the value of each data point is crucial to assess the true costs and benefits to society of a marine monitoring programme.

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“…Sounds are also fundamental components of freshwater and marine systems (Trenkel et al, 2011;Yan et al, 2010). Water is an excellent medium for sound transmission because it travels about five times faster in water than in air (about 1500 vs. 300m/s) and attenuates less over the same distances in water than in air.…”

Section: Introductionmentioning

confidence: 99%

The Soundscape Approach for the Assessment and Conservation of Mediterranean Landscapes: Principles and Case Studies

Farina

Buscaino

Ceraulo

et al. 2014

Journal of Landscape Ecology

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The fine-grained mosaic of natural and human-modified patches that characterizes the Mediterranean region has created a multifaceted system that is difficult to investigate using traditional ecological techniques. In this context, sounds have been found to be the optimum model to provide indirect and timely information about the state of ecosystems. The sonic nature of the environment (the soundscape) represents an important component of the landscape, and the new discipline of soundscape ecology has recently been shown to have appropriate tools for investigating the complexity of the environment. In the last decade, technological advances in the acoustic field have led researchers to carry out wide-scale and long-term ecological research using new and efficient tools, such as digital low cost sound recorders, and autonomous software and metrics. Particularly in the Mediterranean region, where land transformation occurs at a very rapid rate, soundscape analysis may represent an efficient tool with which to:1) track transformations in the community balance, 2) indicate the most acoustically complex parts (bioacoustic hotspots) of the land mosaic, 3) prevent environmental degradation, and 4) decide whether protection or restoration actions are most appropriate.Conserving the quality of Mediterranean sounds means preserving the natural dynamics of its animal populations and also involves maintaining the cultural heritage, human identity, and the spiritual values of the area.

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Underwater acoustics for ecosystem-based management: state of the science and proposals for ecosystem indicators

Cited by 108 publications

References 141 publications

Implementing and Innovating Marine Monitoring Approaches for Assessing Marine Environmental Status

Implementing and Innovating Marine Monitoring Approaches for Assessing Marine Environmental Status

A Review of the Tools Used for Marine Monitoring in the UK: Combining Historic and Contemporary Methods with Modeling and Socioeconomics to Fulfill Legislative Needs and Scientific Ambitions

The Soundscape Approach for the Assessment and Conservation of Mediterranean Landscapes: Principles and Case Studies

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