Light comfort zones of mesopelagic acoustic scattering layers in two contrasting optical environments

Anders Røstad; Stein Kaartvedt; Dag L. Aksnes

doi:10.1016/j.dsr.2016.02.020

Light comfort zones of mesopelagic acoustic scattering layers in two contrasting optical environments

Anders Røstad, Stein Kaartvedt, Dag L. Aksnes

Research output: Contribution to journal › Article › peer-review

42 Scopus citations

Abstract

We make a comparison of the mesopelagic sound scattering layers (SLs) in two contrasting optical environments; the clear Red Sea and in murkier coastal waters of Norway (Masfjorden). The depth distributions of the SL in Masfjorden are shallower and narrower than those of the Red Sea. This difference in depth distribution is consistent with the hypothesis that the organisms of the SL distribute according to similar light comfort zones (LCZ) in the two environments. Our study suggest that surface and underwater light measurements ranging more than10 orders of magnitude is required to assess the controlling effects of light on SL structure and dynamics.

Original language	English (US)
Pages (from-to)	1-6
Number of pages	6
Journal	Deep Sea Research Part I: Oceanographic Research Papers
Volume	113
DOIs	https://doi.org/10.1016/j.dsr.2016.02.020
State	Published - Apr 2 2016

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: We would like to thank the Institute of Marine Research (IMR) for providing facilities for the acoustic observations at Solheim in Masfjorden. Furthermore, we thank three anonymous reviewers for valuable suggestions that improved our study. This study was funded by King Abdullah University of Science and Technology, University of Oslo, and University of Bergen.

ASJC Scopus subject areas

Oceanography
Aquatic Science

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10.1016/j.dsr.2016.02.020

https://repository.kaust.edu.sa/bitstream/10754/604715/1/1-s2.0-S0967063715300224-main.pdf

Cite this

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title = "Light comfort zones of mesopelagic acoustic scattering layers in two contrasting optical environments",

abstract = "We make a comparison of the mesopelagic sound scattering layers (SLs) in two contrasting optical environments; the clear Red Sea and in murkier coastal waters of Norway (Masfjorden). The depth distributions of the SL in Masfjorden are shallower and narrower than those of the Red Sea. This difference in depth distribution is consistent with the hypothesis that the organisms of the SL distribute according to similar light comfort zones (LCZ) in the two environments. Our study suggest that surface and underwater light measurements ranging more than10 orders of magnitude is required to assess the controlling effects of light on SL structure and dynamics.",

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AU - Røstad, Anders

AU - Kaartvedt, Stein

AU - Aksnes, Dag L.

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: We would like to thank the Institute of Marine Research (IMR) for providing facilities for the acoustic observations at Solheim in Masfjorden. Furthermore, we thank three anonymous reviewers for valuable suggestions that improved our study. This study was funded by King Abdullah University of Science and Technology, University of Oslo, and University of Bergen.

PY - 2016/4/2

Y1 - 2016/4/2

N2 - We make a comparison of the mesopelagic sound scattering layers (SLs) in two contrasting optical environments; the clear Red Sea and in murkier coastal waters of Norway (Masfjorden). The depth distributions of the SL in Masfjorden are shallower and narrower than those of the Red Sea. This difference in depth distribution is consistent with the hypothesis that the organisms of the SL distribute according to similar light comfort zones (LCZ) in the two environments. Our study suggest that surface and underwater light measurements ranging more than10 orders of magnitude is required to assess the controlling effects of light on SL structure and dynamics.

AB - We make a comparison of the mesopelagic sound scattering layers (SLs) in two contrasting optical environments; the clear Red Sea and in murkier coastal waters of Norway (Masfjorden). The depth distributions of the SL in Masfjorden are shallower and narrower than those of the Red Sea. This difference in depth distribution is consistent with the hypothesis that the organisms of the SL distribute according to similar light comfort zones (LCZ) in the two environments. Our study suggest that surface and underwater light measurements ranging more than10 orders of magnitude is required to assess the controlling effects of light on SL structure and dynamics.

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JO - Deep Sea Research Part I: Oceanographic Research Papers

JF - Deep Sea Research Part I: Oceanographic Research Papers

ER -

Light comfort zones of mesopelagic acoustic scattering layers in two contrasting optical environments

Abstract

Bibliographical note

ASJC Scopus subject areas

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