Long-term changes in the planktonic cnidarian community in a mesoscale area of the NW Mediterranean - Fig 2

<p><b>Upper panel: Annual mean sea surface temperature (SST) over the period 1974–2011.</b> The horizontal line represents the mean value of the long-term series, and red points represent the studied years (1983, 2004 and 2011). <b>Lower panel: SST anomalies for the summer months of June over the period 1974–2011.</b> Red bars represent the studied years. Data from the L’Estartit Meteorological Station.</p

Species contributions as average dissimilarities (Av. Dis.) to the overall average dissimilarity between each pair of years, as indicated by the SIMPER analysis.

<p>Species contributing to the first 90% of the dissimilarity are shown in decreasing order of percentage contribution. Species contributing to the three highest average dissimilarities (one year vs other) are in <b>bold</b>.</p

Summary of the relationships between the environmental variables and axis 1 from the canonical correspondence analyses (CCA) performed for all surveys combined and for each June survey (1983, 2004 and 2011).

<p>The most significant factor in each case is in <b>bold</b>. Cons. var. explained = constrained variance explained.</p

Mean ± SD abundance values and range (Ind.1000 m^-3), relative abundance (RA) and frequency of occurrence (FO) for all species found during the June surveys of 1983, 2004 and 2011 along the Catalan coast.

<p>Mean ± SD abundance values and range (Ind.1000 m^-3), relative abundance (RA) and frequency of occurrence (FO) for all species found during the June surveys of 1983, 2004 and 2011 along the Catalan coast.</p

Values of the environmental parameters along the Catalan coast during the June surveys of 1983, 2004 and 2011.

<p>Values of the environmental parameters along the Catalan coast during the June surveys of 1983, 2004 and 2011.</p

Spatial distribution of the species <i>Lensia subtilis</i> and <i>Muggiaea kochii</i> overlaid on the surface temperature for each survey.

<p>From top to bottom: June 1983, 2004 and 2011.</p

Results of the analyses of variance using generalized linear models (GLM) for the abundance of total cnidaria, Siphonophorae, Hydromedusae and Scyphomedusae between pairs of years.

<p>Results of the analyses of variance using generalized linear models (GLM) for the abundance of total cnidaria, Siphonophorae, Hydromedusae and Scyphomedusae between pairs of years.</p

Ordination plot of the canonical correspondence analysis (CCA) showing the relationships between the sampling stations (red for 1983, green for 2004 and blue for 2011) and the environmental variables (arrows).

<p>Ordination plot of the canonical correspondence analysis (CCA) showing the relationships between the sampling stations (red for 1983, green for 2004 and blue for 2011) and the environmental variables (arrows).</p

Spatial distributions of the positive and negative score values of each sampled station for the first axis that resulted from the CCA analyses for each survey.

<p>Blue dots represent negative score values, and red dots represent positive values.</p

Surface temperature and salinity in June 1983, 2004 and 2011 along the Catalan coast.

<p>Surface temperature and salinity in June 1983, 2004 and 2011 along the Catalan coast.</p