Report of acoustic processing routines & quality checking methods. Version 1.1. [D3.1]

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Date
2018Author
Fielding, S.
Status
PublishedPages
9pp.
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Show full item recordAbstract
The mesopelagic (200-1000 m depth), is one of the most understudied regions in the world oceans (St
John et al. 2016). Micronekton (~1 to 20 cm in length, Kloser et al. 2009) are an ecologically important
component of the mesopelagic community, having potentially large biomasses (Irigoien et al. 2014),
high nutritional value (Lea et al. 2002), transferring carbon from the surface to depth (Anderson et al.
2018), and of commercial interest (Gjøsæter and Kawaguchi 1980; St John et al. 2016).
Notoriously hard to sample, due to poor sampling efficiency of nets, observations within the
mesopelagic zone are frequently made using active acoustics (Simmonds and MacLennan 2005).
Whereby, echosounders produce a pulse of sound and receive echoes backscattered from organisms,
objects and discontinuities in the water. Measurement of the time delay of the received acoustic signal
and quantification of the intensity of the returned sound reveals information about the source of the
scatterin.....
Publisher
Collection Location Satellites (CLS)France
Series;Nr
MESOPP-18-0003;Document Language
enEssential Ocean Variables (EOV)
Fish abundance and distributionZooplankton biomass and diversity
Best Practice Type
Best PracticeStandard Operating Procedure
Citation
Fielding, S. (2018) Report of acoustic processing routines & quality checking methods. France, Collection Location Satellites (CLS) 9pp. (MESOPP-18-0003 [D.1]). DOI: http://dx.doi.org/10.25607/OBP-442Collections