Abstract
A pilot intercalibration study was performed to evaluate the ability of RD Instrument's 307 kHz acoustic Doppler current profiler to measure zooplankton abundance. The intercalibration was between a bottom-mounted acoustic profiler deployed in 150 m of water at the edge of the New England shelf and zooplankton samples collected with a MOCNESS net system which was towed near the profiler. The results of the study showed significant correlations between backscattered signal intensity and total zooplankton volume, cross-sectional area, and dry weight. From the correlations it appears to be possible to predict zooplankton biomass to approximately ± 15 mg m-3 over the range of abundance spanned by our data with enormous resolution in time and space. However, experience with processing the acoustic data clearly indicates that significant results are only possible after careful attention to the calibration of the transducers/electronics and to the quality of the data produced by the individual profiler beams.
| Original language | English |
|---|---|
| Pages (from-to) | 455-474 |
| Number of pages | 20 |
| Journal | Deep Sea Research Part A, Oceanographic Research Papers |
| Volume | 36 |
| Issue number | 3 |
| DOIs | |
| State | Published - Jan 1 1989 |
| Externally published | Yes |
Fingerprint
ASJC Scopus subject areas
- Earth and Planetary Sciences(all)
- Environmental Science(all)
Cite this
On the use of the acoustic Doppler current profiler to measure zooplankton abundance. / Flagg, Charles N.; Smith, Sharon L.
In: Deep Sea Research Part A, Oceanographic Research Papers, Vol. 36, No. 3, 01.01.1989, p. 455-474.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - On the use of the acoustic Doppler current profiler to measure zooplankton abundance
AU - Flagg, Charles N.
AU - Smith, Sharon L
PY - 1989/1/1
Y1 - 1989/1/1
N2 - A pilot intercalibration study was performed to evaluate the ability of RD Instrument's 307 kHz acoustic Doppler current profiler to measure zooplankton abundance. The intercalibration was between a bottom-mounted acoustic profiler deployed in 150 m of water at the edge of the New England shelf and zooplankton samples collected with a MOCNESS net system which was towed near the profiler. The results of the study showed significant correlations between backscattered signal intensity and total zooplankton volume, cross-sectional area, and dry weight. From the correlations it appears to be possible to predict zooplankton biomass to approximately ± 15 mg m-3 over the range of abundance spanned by our data with enormous resolution in time and space. However, experience with processing the acoustic data clearly indicates that significant results are only possible after careful attention to the calibration of the transducers/electronics and to the quality of the data produced by the individual profiler beams.
AB - A pilot intercalibration study was performed to evaluate the ability of RD Instrument's 307 kHz acoustic Doppler current profiler to measure zooplankton abundance. The intercalibration was between a bottom-mounted acoustic profiler deployed in 150 m of water at the edge of the New England shelf and zooplankton samples collected with a MOCNESS net system which was towed near the profiler. The results of the study showed significant correlations between backscattered signal intensity and total zooplankton volume, cross-sectional area, and dry weight. From the correlations it appears to be possible to predict zooplankton biomass to approximately ± 15 mg m-3 over the range of abundance spanned by our data with enormous resolution in time and space. However, experience with processing the acoustic data clearly indicates that significant results are only possible after careful attention to the calibration of the transducers/electronics and to the quality of the data produced by the individual profiler beams.
UR - http://www.scopus.com/inward/record.url?scp=0024568405&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0024568405&partnerID=8YFLogxK
U2 - 10.1016/0198-0149(89)90047-2
DO - 10.1016/0198-0149(89)90047-2
M3 - Article
AN - SCOPUS:0024568405
VL - 36
SP - 455
EP - 474
JO - Deep-Sea Research, Part A: Oceanographic Research Papers
JF - Deep-Sea Research, Part A: Oceanographic Research Papers
SN - 0198-0149
IS - 3
ER -