YAN Lei, ZHANG Peng, YANG Lin, YANG Bingzhong, CHEN Sen, LI Yanan, TAN Yongguang. Effect of moon phase on fishing rate by light falling-net fishing vessels of Symplectoteuthis oualaniensis in the South China Sea[J]. South China Fisheries Science, 2015, 11(3): 16-21. DOI: 10.3969/j.issn.2095-0780.2015.03.003
Citation: YAN Lei, ZHANG Peng, YANG Lin, YANG Bingzhong, CHEN Sen, LI Yanan, TAN Yongguang. Effect of moon phase on fishing rate by light falling-net fishing vessels of Symplectoteuthis oualaniensis in the South China Sea[J]. South China Fisheries Science, 2015, 11(3): 16-21. DOI: 10.3969/j.issn.2095-0780.2015.03.003
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Effect of moon phase on fishing rate by light falling-net fishing vessels of Symplectoteuthis oualaniensis in the South China Sea

    Abstract
  • Based on the production data of the light falling-net fishing vessels in Xisha and Zhongsha sea area from 2006 to 2010 (March to May), we investigated the effect of moon phase on fishing rate of Symplectoteuthis oualaniensisbased ongeneral additive model (GAM). And the difference of the fishing days and the average daily catch between bright moonlight (8th~22nd, lunar calendar) and no-moonlight (23rd~7th, lunar calendar) were analyzed by ANOVA analysis. The results show that the effect of moon phase on average daily catch of S.oualaniensis was remarkable by GAM analysis in every year (P0.001). Significant difference was found in the fishing days (P=0.0040.05) and average daily catch (P=0.0240.05) in bright moonlight and no-moonlight, and the fishing days and average daily catch in bright moonlight were higher than those in no-moonlight .
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