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Ben Scoulding
Commonwealth Scientific and Industrial Research Organisation
OceanographyTarget strengthAtlantic mackerelEcho soundingFishery
10Publications
4H-index
35Citations
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Publications 12
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#1Timothy A. Whitton (Bangor University)H-Index: 3
#2Suzanna E. Jackson (Bangor University)H-Index: 1
Last. Alan G. Davies (Bangor University)H-Index: 29
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Last. Ben ScouldingH-Index: 4
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#1Gavin J. MacaulayH-Index: 13
#2Ben Scoulding (CSIRO: Commonwealth Scientific and Industrial Research Organisation)H-Index: 4
Last. Sascha M. M. FässlerH-Index: 8
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A time-series of acoustically derived aquatic biomass estimates relies on the acoustic equipment maintaining the same performance throughout the time-series. This is normally achieved through a regular calibration process. When the acoustic equipment changes it is necessary to verify that the new equipment produces a similar result to the old equipment, otherwise an unknown bias can be introduced into the time-series. The commonly used Simrad EK60 echosounder has been superseded by the Simrad EK...
2 CitationsSource
#1Sven Gastauer (Curtin University)H-Index: 4
#2Ben Scoulding (Hobart Corporation)H-Index: 4
Last. Miles Parsons (Curtin University)H-Index: 8
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Ongoing monitoring of complex, mixed species environments is a challenging task. In this study, the potential of acoustic and catch data collected aboard a commercial fishing vessel, in combination with geostatistical variance estimates, are explored as a means to derive information on the distribution and abundance of key species groups within selected fishing regions. The FV Carolina M, a trap fishing vessel which operates in waters off Broome, Western Australia, in the Northern Demersal Scale...
1 CitationsSource
#1Sven Gastauer (Curtin University)H-Index: 4
#2Ben Scoulding (Hobart Corporation)H-Index: 4
Last. Miles Parsons (Curtin University)H-Index: 8
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Goldband snapper (Pristipomoides multidens) is an ecologically and economically important species in the Northern Demersal Scalefish Fishery (NDSF). The Carolina M, a trap fishing vessel operating in the NDSF, was equipped with Simrad ES70 echosounders, operated at 38 and 120 kHz. In 2014 acoustic data, in combination with optical recordings of the catch, were opportunistically collected during routine fishing operations. In December 2014 pure, low density goldband snapper schools were observed ...
5 CitationsSource
#1Sven Gastauer (Curtin University)H-Index: 4
#2Ben Scoulding (Hobart Corporation)H-Index: 4
Last. Miles Parsons (Curtin University)H-Index: 8
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Fisheries acoustics is now a standard tool for monitoring marine organisms. Another use of active-acoustics techniques is the potential to qualitatively describe fish school and seafloor characteristics or the distribution of fish density hotspots. Here, we use a geostatistical approach to describe the distribution of acoustic density hotspots within three fishing regions of the Northern Demersal Scalefish Fishery in Western Australia. This revealed a patchy distribution of hotspots within the t...
1 CitationsSource
#1Ben Scoulding (Hobart Corporation)H-Index: 4
#2Sven Gastauer (Curtin University)H-Index: 4
Last. Paul G. Fernandes (Aberd.: University of Aberdeen)H-Index: 23
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Atlantic mackerel Scomber scombrus is a small pelagic, migratory fish which supports commercial fisheries. These fish school and are detectable using echosounders, yet fishery-independent estimates of their abundance in the North East Atlantic do not consider acoustic data. Accurate estimates of mean target strength (TS) are presently limiting echo-integration surveys from providing useful estimates of Atlantic mackerel abundance and distribution. This study provides TS estimates for in situ mac...
4 CitationsSource
#1Sven Gastauer (Curtin University)H-Index: 4
Last. Ben ScouldingH-Index: 4
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Abstract Northern blue whiting is a small abundant pelagic gadoid that is widely distributed in the northeast Atlantic and one of the most commercially valuable species west of the British Isles and Ireland. Over the last two decades the northeast Atlantic stock has undergone dramatic changes in abundance. The stock size decreased dramatically from 2007 to 2011, but has since shown signs of recovery. Changes in recruitment levels have occurred almost simultaneously with unusual changes in the no...
6 CitationsSource
Atlantic mackerel is a small pelagic, migratory fish which supports valuable commercial fisheries. Despite the fact that these fish school in massive numbers, and are readily detected using echosounders, fishery-independent estimates of the abundance of mackerel in the Northeast Atlantic do not yet consider acoustic data. Echo-integration surveys could provide annual estimates of abundance, with additional scope for studying mackerel distributions throughout the year. However, as in all acoustic...
2 CitationsSource
In a separate presentation, Scoulding et al. describe the rationale and foundation for regular acoustic surveys of Atlantic mackerel (Scomber scombrus) in the northeast Atlantic Ocean. Two key aims of this work were (1) to obtain a good knowledge of the in situ target strength of these weak scatterers, and (2) to settle on a robust and efficient workflow for the processing of mackerel acoustic survey data. To achieve these aims, dedicated mackerel acoustic surveys were carried out in 2012 and 20...
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