Gabon_dryad_fish_data

Data description: Date – MM/DD/YYYY ; Reef – Gabon ; STATION – Rig1……Rig10 ; Latitude – Decimal degrees, WGS 1984 ; Longitude - Decimal degrees, WGS 1984 ; Depth_m- depth in meters ; Depth_stratum - DIVER – AMF = Alan Friedlander ; TRANSECT = A, B, C, D ; Taxon – lowest possible scientific name ; num_m^2 – numerical abundance in number per meter squared ; g_m^2 – biomass in grams per meter square

Percent occurrence of major taxa found on oil platforms in Gabon.

<p>The mean is the percentage of the sub-quadrats were the taxa was observed. % freq. is the percentage of platforms upon which this taxon was observed (n = 10).</p

Non-metric multidimensional scaling plot of benthic communities and fish assemblages associated with oil platforms in Gabon.

<p>Vectors are the primary taxa driving the ordination (Pearson Product movement correlations ≥0.9). A. benthic communities species codes: Ar.lixu  =  <i>Arbacia lixula v. africana</i>, Ceram  =  <i>Ceramiaceae</i> unidentified, Di.list  =  <i>Diplosoma listerianum</i>, Eu.trib  =  <i>Eucidaris tribuloides v. africana</i>, Liss  =  <i>Lissoclinum</i> sp., Me.tini  =  <i>Megabalanus tintinnabulum</i>, Poly  =  Polyclinidae unidentified, Pt.atla  =  <i>Pteria atlantica</i>, Tubas  =  <i>Tubastraea</i> sp. B. Fish assemblage species codes: Ab.saxa  =  <i>Abudefduf saxatilis</i>, Ky.sp  =  <i>Kyphosus</i> sp., My.jaco  =  <i>Myripristis jacobus</i>, Op.sp  =  <i>Ophioblennius</i> sp., Pa.furc  =  <i>Paranthias furcifer</i> Sp.mela  =  <i>Spicara melanurus</i>.</p

Descriptions of oil platforms sampled along the coast of Gabon, West Africa.

<p>* ‘Deep’ is the second shallowest crossbeam of each platform.</p

Estimates of abundance and sizes of large schooling resource species associated with oil rigs in Gabon.

<p>Values are approximate number of individuals associated with the oil rig with minimum and maximum size (TL [total length] cm) in parentheses.</p

Conditional effects of Monte-Carlo permutation results on the redundancy analysis (RDA).

<p>Variables in bold are significantly correlated with the RDA axes.</p

Results of redundancy analysis (RDA) on log-transformed data on fish biomass of trophic groups and abundance of higher-level benthic groups with environmental variables (e.g., age of platform, distance offshore, latitude, platform area).

<p>FG  =  functional groups.</p

Oil platforms sampled along the coast of Gabon, West Africa.

<p>Platform numbers and descriptions are found in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0103709#pone-0103709-t001" target="_blank">Table 1</a>.</p

Comparisons of trophic (a) biomass (t ha⁻¹) and (b) abundance (no. m⁻²) at oil platforms in Gabon.

<p>Values are means and standard error. Kruskal-Wallis Rank Sum comparisons among trophic groups were statistically different for biomass (H = 12.3, p = 0.007) and abundance (H = 35.3, p<0.001). Trophic groups with the same letter are not significantly different (Dunn's unplanned multiple comparisons procedures, α = 0.05).</p

Biomass (g m⁻²) of the top ten species observed on quantitative transects on oil platforms in Gabon, West Africa.

<p>Values are means and one standard deviation. Trophic groups – Plank  =  planktivores, Herb  =  herbivores, Pisc  =  piscivores, Invert  =  invertivores. Distributions derived from <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0103709#pone.0103709-Floeter2" target="_blank">[82]</a>, <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0103709#pone.0103709-Wirtz6" target="_blank">[83]</a>. % is the percent contribution of each species to total fish biomass.</p