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

Anders Røstad, Stein Kaartvedt, Dag L. Aksnes

Research output: Contribution to journalArticlepeer-review

34 Scopus citations


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 languageEnglish (US)
Pages (from-to)1-6
Number of pages6
JournalDeep Sea Research Part I: Oceanographic Research Papers
StatePublished - 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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