A consistent approach to definitions and symbols in fisheries acoustics

By D. MacLennan, P. Fernandes, J. Dalen. 2002

769 citations recorded by the source corpus.

Subfields: Ecology, Global and Planetary Change, Oceanography

View Paper: https://www.semanticscholar.org/paper/f2a04bc6dd2c0aa3e45a7ece16a807cf24329f56

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Citations in the corpus

Acoustic biomass estimation of mesopelagic fish: backscattering from individuals, populations, and communities (2015, background): “…with echograms of volume backscattering coefficient (sv; m 21), the linear form of volume backscattering strength [Sv ¼ 10log10(sv); dB re 1 m21; MacLennan et al., 2002]. sv is integrated by depth to produce the area backscattering coefficient, sa (m 2 m22), and abundance ¼ sa/sbs (ind. m22;…”
Diel migration and swimbladder resonance of small fish: some implications for analyses of multifrequency echo data (2009, background): “This can also cause frequencydependent variations in their nautical-area-scattering coefficient (sA; MacLennan et al., 2002).”
Shoal behaviour and maturity relations of spawning capelin (Mallotus villosus )o ff Newfoundland: demersal spawning and diel vertical movement patterns (2006, methodology): “We integrated sv in each file to determine the average aerial backscattering coefficient (sa) for capelin per 100 metres along the transect (MacLennan et al. 2002).”
From siphonophores to deep scattering layers: uncertainty ranges for the estimation of global mesopelagic fish biomass (2019, background): “The gas bladders of ﬁsh and siphonophores produce backscatter that contributes to 95% or more of the organisms’ target strength [ TS ¼ 10log 10 ( r bs ), dB re 1 m 2 , Maclennan et al. , 2002] when inso-niﬁed at 38kHz, the frequency used in this study.”
An expanded target-strength relationship for herring (2003, methodology): “The TS (dB) is obtained from the acoustic-backscattering cross-section, rbs (m 2), by the formula (MacLennan et al., 2002) TS ¼ 10 logðrbsÞ: ð2Þ Since the backscattering cross-section is assumed to be largely proportional to the dorsal surface area of the swimbladder, the following model has been…”
Depth-dependent target strength of anchovy (Engraulis japonicus) measured in situ (2008, methodology): “where sA, the nautical-area-scattering coefficient (MacLennan et al., 2002), was 58.”
Developing an acoustic survey of euphausiids to understand trophic interactions in the Bering Sea ecosystem (2012, methodology): “Briefly, volume backscattering strength (Sv, dB re 1 m 1; see MacLennan et al., 2002 for a review of acoustic terminology) was averaged over 5 ping (horizontal) by 5 m (vertical) cells, and then all pairwise differences between Sv at different frequencies were computed for each of these cells.”