Cape_Horn_fish_data

Data collected in the field. Excel file format. Region: Fjords, Cape Horn, Diego Ramirez Island: Canel Barbara, Diego Ramirez, Isla Grevy, Isla Hermite, Isla Herschel, Isla Hornos, Isla Wollaston Station: 1-18 Sample: 1, 2 Date: dd-MMM-yr Lat: Latitude – decimal degrees WGS84 Long: Longitude - decimal degrees WGS84 Depth: M Species: Scientific name Count: number Num_m^2: Number per meter square

Stipe densities of <i>Macrocystis pyrifera</i> and <i>Lessonia</i> spp. among the three sub-regions.

<p>Box plots showing median (black line), mean (red dashed line), upper and lower quartiles, and 5th and 95th percentiles. Kruskal-Wallis Rank Sum comparisons among regions were statistically different for <i>Lessonia</i> spp. (<i>X</i>^<i>2</i> = 13.3, p = 0.001) but not for <i>Macrocystis pyrifera</i> (<i>X</i>^<i>2</i> = 4.9, p = 0.08). Regions with the same letter are not significantly different (Steel-Dwass unplanned multiple comparisons procedures, a = 0.05).</p

Deep Ocean Dropcam deployment statistics and associated habitats.

<p>Habitats: mud (M), sand (S), pebble (P), cobble (C), boulder (B), continuous flat rock (F), diagonal rock ridge (R), and vertical rock-pinnacle top (T). The first letter represents at least 50% cover by that category, and the second, at least 30% cover. Combined, the two-letter code represents ≥ 80% of the benthic cover at a site. Deploy–deployment.</p

Fish assemblage characteristics among the three sub-regions.

<p>Box plots showing median (black line), mean (red dashed line), upper and lower quartiles, and 5th and 95th percentiles. Kruskal-Wallis Rank Sum comparisons among regions were statistically different for species richness (<i>X</i>^<i>2</i> = 13.3, p = 0.001) and numerical abundance (<i>X</i>^<i>2</i> = 4.9, p = 0.08). Regions with the same letter are not significantly different (Steel-Dwass unplanned multiple comparisons procedures, a = 0.05).</p

Sampling locations in southern Patagonia.

<p>A. Magellan Region, B. Cape Horn Archipelago, C. Francisco Coloane Marine Park, D. Diego Ramírez.</p

Similarity of percentages (SIMPER) for benthic taxa most responsible for the percent dissimilarities between sub-regions using Bray-Curtis similarity analysis of hierarchical agglomerative group average clustering.

<p>Values are mean (no. m^-2) with standard deviations in parentheses. Diss. = Average dissimilarity with one standard deviation of the mean in parentheses. A = Cape Horn and Diego Ramírez, B = Cape Horn and Francisco Coloane, and C = Diego Ramírez and Francisco Coloane.</p

Benthic assemblage characteristics among sub-regions.

<p>Diversity is Shannon-Wiener H′(log_e), Evenness is J = H’/ln(S). Statistical results of Kruskal-Wallis rank-sum test (<i>X</i>²) with Steel-Dwass test for unplanned multiple comparisons. Underlined sub-regions are not significantly different (α = 0.05). Francisco Coloane = FC, Cape Horn = CH, Diego Ramírez = DR.</p

Sea urchin numerical abundances among sub-regions.

<p>Values are mean (no. m^-2) with standard deviations in parentheses.</p

Shallow water fish species observed during surveys in the Magellan Region.

<p>Mean total length (TL) in cm are from quantitative underwater transects unless otherwise noted.</p

Principle coordinates analysis of A. benthic taxa by sub-region and, B. functional groups by island within sub-regions.

<p>Benthic taxa and functional group abundance data were ln(x+1) transformed prior to analyses. Vectors are the primary taxa driving the ordination (Pearson Product movement correlations ≥ 0.6). <i>C</i>. <i>vagans</i>–<i>Campylonotus vagans</i>, <i>C</i>. <i>lurida</i>–<i>Cosmasterias lurida</i>, <i>P</i>. <i>antarctica</i>–<i>Porania antarctica</i>.</p