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Table 2 The annual mean value of Secchi depth and estimated lower depth of Z. marina

From: Coexistence between Zostera marina and Zostera japonica in seagrass beds of the Seto Inland Sea, Japan

  2010 2011 2012 2013
Secchi depth (m) 6.3 ± 1.6 6.9 ± 1.8 7.7 ± 1.5 8.9 ± 2.9
Z. marina depth limit (m) 6.8 ± 1.8 7.6 ± 2.0 8.4 ± 1.6 9.8 ± 3.1