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    Global effects of moon phase on nocturnal acoustic scattering layers

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    Type
    Article
    Authors
    Prihartato, Perdana cc
    Irigoien, Xabier cc
    Genton, Marc G. cc
    Kaartvedt, Stein cc
    KAUST Department
    Biological and Environmental Sciences and Engineering (BESE) Division
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Marine Science Program
    Office of the VP
    Red Sea Research Center (RSRC)
    Statistics Program
    Date
    2016-01-18
    Online Publication Date
    2016-01-18
    Print Publication Date
    2016-02-18
    Permanent link to this record
    http://hdl.handle.net/10754/621771
    
    Metadata
    Show full item record
    Abstract
    © Inter-Research 2016. The impact of moon phase on the global nocturnal vertical distribution of acoustic scattering layers (SLs) in the upper 200 m was studied during the Malaspina expedition that circumnavigated the world. We assessed the nocturnal weighted mean depths and the vertical extension of the SL (the range between the upper 25th percentile and lower 75th percentile of the backscatter) and used a generalized additive model to reveal the relationship between the nocturnal vertical distribution of the SL and moon phase, as well as other environmental factors. Moon phase significantly affected the SL distribution on a global scale, in contrast to other factors such as dissolved oxygen, temperature and fluorescence, which each correlated with nocturnal SL distribution during the large geographic coverage. Full moon caused a deepening effect on the nocturnal SL. Contrary to expectations, the shallowest distribution was not observed during the darkest nights (new moon) and there was no difference in vertical distribution between new moon and intermediate moon phases. We conclude that the trend of deepening SL during approximately full moon (bright nights) is a global phenomenon related to anti-predator behavior.
    Citation
    Prihartato P, Irigoien X, Genton M, Kaartvedt S (2016) Global effects of moon phase on nocturnal acoustic scattering layers. Mar Ecol Prog Ser 544: 65–75. Available: http://dx.doi.org/10.3354/meps11612.
    Sponsors
    This research was supported by the Malaspina 2010 Expedition project, funded by the Spanish Ministry of Economy and Competitiveness (Consolider-Ingenio 2010, CSD2008-00077) and co-funded by AZTI-Tecnalia. The research was equally supported by the baseline funding of S.K. provided by King Abdullah University of Science and Technology (KAUST). We thank Udane Martinez for setting the acoustics onboard and all those who contributed to the success of the Malaspina 2010 Expedition.
    Publisher
    Inter-Research Science Center
    Journal
    Marine Ecology Progress Series
    DOI
    10.3354/meps11612
    ae974a485f413a2113503eed53cd6c53
    10.3354/meps11612
    Scopus Count
    Collections
    Articles; Biological and Environmental Science and Engineering (BESE) Division; Red Sea Research Center (RSRC); Marine Science Program; Statistics Program; Computer, Electrical and Mathematical Science and Engineering (CEMSE) Division

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