Frequency of occurrence of environmental conditions favourable for adult reproduction and larval metamorphosis in the Surface layer (≤ 9m).

<p>Frequency of occurrence (percentage of all months over all years) in which mean salinity, temperature, and oxygen concentrations exceeded tolerance limits for adult reproduction and larval metamorphosis in the upper 9m ("Surface layer") of the water column (<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0119217#pone.0119217.t001" target="_blank">Table 1</a>). (A) "Hindcast" period 1980–2008 and (B) "Forecast" period 2009–2020. Filled and empty black circles show infested and non-infested sites, respectively ([<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0119217#pone.0119217.ref024" target="_blank">24</a>,<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0119217#pone.0119217.ref043" target="_blank">43</a>,<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0119217#pone.0119217.ref057" target="_blank">57</a>], this study).