ow nloaded from measured in the Bering Sea. e ICES Journal of Marine Science, 63: 683e692. This paper reports theoretical values of target strength (TS) for the lanternfish Stenobrachius leucopsarus, a fish without an airbladder, which dominates the Subarctic marine mesopelagic fish community. Two m...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.598.7813 2023-05-15T15:43:48+02:00 The Pennsylvania State University CiteSeerX Archives 2005 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.598.7813 http://icesjms.oxfordjournals.org/content/63/4/683.full.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.598.7813 http://icesjms.oxfordjournals.org/content/63/4/683.full.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://icesjms.oxfordjournals.org/content/63/4/683.full.pdf body-mass density body sound speed deformed-cylinder model spheroid model Stenobrachius leucopsarus target strength text 2005 ftciteseerx 2016-01-08T13:51:41Z ow nloaded from measured in the Bering Sea. e ICES Journal of Marine Science, 63: 683e692. This paper reports theoretical values of target strength (TS) for the lanternfish Stenobrachius leucopsarus, a fish without an airbladder, which dominates the Subarctic marine mesopelagic fish community. Two models for liquid-like slender bodies, the general prolate-spheroid model (PSM) and the deformed-cylinder model (DCM), were used to compute the TS of the fish relative to its orientation. The relative mass density g and the sound speed h in sea-water were measured and used in both models. To confirm the appropriateness of the models, tethered experimental measurements were carried out at 38 kHz for five specimens. The value of g measured by the density-bottle method was very low (1.002e1.009) compared with that of marine fish in general. The value of h measured by the time-average approach was 1.032e1.039 at the water temperature at which S. leucopsarus is found. TS-fluctuation patterns against fish orientation (the TS pattern) estimated from the DCM and PSM were in good agreement in the area of their main lobes. Both models reproduced the main lobes of the Text Bering Sea Subarctic Unknown Bering Sea |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
topic |
body-mass density body sound speed deformed-cylinder model spheroid model Stenobrachius leucopsarus target strength |
spellingShingle |
body-mass density body sound speed deformed-cylinder model spheroid model Stenobrachius leucopsarus target strength |
topic_facet |
body-mass density body sound speed deformed-cylinder model spheroid model Stenobrachius leucopsarus target strength |
description |
ow nloaded from measured in the Bering Sea. e ICES Journal of Marine Science, 63: 683e692. This paper reports theoretical values of target strength (TS) for the lanternfish Stenobrachius leucopsarus, a fish without an airbladder, which dominates the Subarctic marine mesopelagic fish community. Two models for liquid-like slender bodies, the general prolate-spheroid model (PSM) and the deformed-cylinder model (DCM), were used to compute the TS of the fish relative to its orientation. The relative mass density g and the sound speed h in sea-water were measured and used in both models. To confirm the appropriateness of the models, tethered experimental measurements were carried out at 38 kHz for five specimens. The value of g measured by the density-bottle method was very low (1.002e1.009) compared with that of marine fish in general. The value of h measured by the time-average approach was 1.032e1.039 at the water temperature at which S. leucopsarus is found. TS-fluctuation patterns against fish orientation (the TS pattern) estimated from the DCM and PSM were in good agreement in the area of their main lobes. Both models reproduced the main lobes of the |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
publishDate |
2005 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.598.7813 http://icesjms.oxfordjournals.org/content/63/4/683.full.pdf |
geographic |
Bering Sea |
geographic_facet |
Bering Sea |
genre |
Bering Sea Subarctic |
genre_facet |
Bering Sea Subarctic |
op_source |
http://icesjms.oxfordjournals.org/content/63/4/683.full.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.598.7813 http://icesjms.oxfordjournals.org/content/63/4/683.full.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766378000076505088 |