Sound scattering by several zooplankton groups. I. Experimental determination of dominant scattering mechanisms

The Journal of the Acoustical Society of America
Timothy K StantonR L Eastwood

Abstract

The acoustic scattering properties of live individual zooplankton from several gross anatomical groups have been investigated. The groups involve (1) euphausiids (Meganyctiphanes norvegica) whose bodies behave acoustically as a fluid material, (2) gastropods (Limacina retroversa) whose bodies include a hard elastic shell, and (3) siphonophores (Agalma okeni or elegans and Nanomia cara) whose bodies contain a gas inclusion (pneumatophore). The animals were collected from ocean waters off New England (Slope Water, Georges Bank, and the Gulf of Maine). The scattering properties were measured over parts or all of the frequency range 50 kHz to 1 MHz in a laboratory-style pulse-echo setup in a large tank at sea using live fresh specimens. Individual echoes as well as averages and ping-to-ping fluctuations of repeated echoes were studied. The material type of each group is shown to strongly affect both the overall echo level and pattern of the target strength versus frequency plots. In this first article of a two-part series, the dominant scattering mechanisms of the three animal types are determined principally by examining the structure of both the frequency spectra of individual broadband echoes and the compressed pulse (time serie...Continue Reading

References

Jan 24, 1998·The Journal of the Acoustical Society of America·T K StantonP H Wiebe

❮ Previous
Next ❯

Citations

Jun 8, 2013·The Journal of the Acoustical Society of America·Christopher J WilsonKenneth H Dunton
Feb 6, 2008·The Journal of the Acoustical Society of America·Andone C LaveryNancy Copley
Feb 12, 2009·The Journal of the Acoustical Society of America·Tomohito ImaizumiYasushi Nishimori
Jun 21, 2012·The Journal of the Acoustical Society of America·Wu-Jung LeeTimothy K Stanton
Oct 12, 2007·The Journal of the Acoustical Society of America·Andone C Lavery, Tetjana Ross
Mar 19, 2008·The Journal of the Acoustical Society of America·Benjamin A JonesPeter L Tyack
Aug 7, 2008·The Journal of the Acoustical Society of America·Paul L D Roberts, Jules S Jaffe
Sep 16, 2014·Journal of Plankton Research·Jørgen BergeSanna Majaneva
Jun 3, 2016·The Journal of the Acoustical Society of America·Wu-Jung Lee, Cynthia F Moss
Oct 31, 2016·The Journal of the Acoustical Society of America·Christopher BassettJeremy P Wilkinson
Jan 24, 1998·The Journal of the Acoustical Society of America·T K StantonP H Wiebe
Apr 5, 2002·The Journal of the Acoustical Society of America·Andone C LaveryDezhang Chu
Aug 24, 2000·The Journal of the Acoustical Society of America·T K StantonJ D Warren
Aug 7, 2004·The Journal of the Acoustical Society of America·Timothy K Stanton, Dezhang Chu
Sep 21, 2004·The Journal of the Acoustical Society of America·D Benjamin ReederTimothy K Stanton
Jul 16, 2005·The Journal of the Acoustical Society of America·Mark V TrevorrowMark C Benfield
Feb 3, 2020·The Journal of the Acoustical Society of America·Kelly J Benoit-Bird, Chad M Waluk

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

The Journal of the Acoustical Society of America
Timothy K StantonPeter H Wiebe
The Journal of the Acoustical Society of America
Timothy K StantonJ D Warren
The Journal of the Acoustical Society of America
Paul L D Roberts, Jules S Jaffe
The Journal of the Acoustical Society of America
Andone LaveryNancy Copley
© 2021 Meta ULC. All rights reserved