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419 results for “Octocorals”
FIGURE 11 in Two new paralcyoniid octocorals from Japan (Anthozoa: Alcyonacea)
FIGURE 11. Sclerites of Paralcyonium spinulosum (ZMA-COEL 7864) under SEM: A, long spindles from pedicel cortex, with detail of warts, B, and ultrastructure, C. Scale bars = 1 mm (A), 0.05 mm (B), 0.005 mm (C).
FIGURE 6 in Two new paralcyoniid octocorals from Japan (Anthozoa: Alcyonacea)
FIGURE 6. Nanalcyon sagamiense sp. nov. (NSMT-CoS 119): A, polyps showing two patterns of arrangement of sclerites in the anthocodial part and in proximal parts of tentacles; B, elongated platelets from proximal part of tentacles; C, elongated rods from anthocodiae; D, short rods from trunk. Scale bars = 1 mm (A), 0.1 mm (B–D).
FIGURE 8 in Two new paralcyoniid octocorals from Japan (Anthozoa: Alcyonacea)
FIGURE 8. Sclerites of Nanalcyon sagamiense sp. nov. (NSMT-CoS 119) under SEM: A, short rods from trunk cortex, with ultrastructure, B; C, large spindles from pedicel cortex, with detail of warts, D, and ultrastructure, E. Scale bars = 1 mm (C), 0.05 mm (A, D), 0.005 mm (B, E).
FIGURE 1 in Two new paralcyoniid octocorals from Japan (Anthozoa: Alcyonacea)
FIGURE 1. Ceeceenus retractus sp. nov., A–D, and Nanalcyon sagamiense sp. nov., E–K: A, holotype of Ceeceenus retractus (NSMT-Co 1552) in alcohol, showing a young colony (in red circle) arise from narrow membranous stolon of large polyp; B, detail of holotype, showing the arrangement of polyps on a branch; C, detail of holotype, showing the arrangement of sclerites in the anthocodia and tentacle; D, detail of holotype, showing the arrangement of polyps and sclerites in the proximal part of the trunk; E, holotype of live Nanalcyon sagamiense, showing secondary polyps (in red circle) arising near the proximal part of a primary polyp; F, holotype in alcohol (NSMT-CoS 119); G, detail of a polyp of holotype (NSMT-CoS 119), showing the arrangement of sclerites in the anthocodial parts and proximal parts of tentacles; H, paratype (NSMT-CoS 120) in alcohol; I, three paratypes (NSMT-CoS 121-1 to 3) in alcohol, showing a young colony (in red circle); J, paratype (NSMT-CoS 122) in alcohol; K, detail of paratype (NSMT-CoS 122), showing a secondary polyp (in red circle) near the proximal part of a primary polyp (in yellow circle). Scale bars = 10 mm (A), 5 mm (D–F, H–J), 1 mm (B, C, G, K).
FIGURE 2 in Two new paralcyoniid octocorals from Japan (Anthozoa: Alcyonacea)
FIGURE 2. Ceeceenus retractus sp. nov. (NSMT-Co 1552): A, polyps showing several patterns of sclerite arrangement in the anthocodial part and tentacles; B, sclerites of the tentacles; C, sclerites of the anthocodiae. Scale bars = 1 mm (A), 0.1 mm (B, C).
FIGURE 4 in Two new paralcyoniid octocorals from Japan (Anthozoa: Alcyonacea)
FIGURE 4. Sclerites of Ceeceenus retractus sp. nov. (NSMT-Co 1552) under SEM: A, flat oval platelets from anthocodiae, with ultrastructure, B; C, elongated and triangular rods from anthocodiae, with ultrastructure, D. Scale bars = 0.05 mm (A, C), 0.005 mm (B, D).
Supplementary material 2 from: Breedy O, McFadden CS, Cortés J (2023) An enigmatic new octocoral species (Anthozoa, Octocorallia, Malacalcyonacea) from Isla del Coco National Park. ZooKeys 1169: 317-331. https://doi.org/10.3897/zookeys.1169.100576
Phylogenetic relationships of Order Malacalcyonacea based on maximum likelihood analysis of 28S rDNA
FIGURE 4 in Growth in two deep-sea associates: the octocoral Pseudogorgia bellona and the euryalid snake star Asteroschema ajax
FIGURE 4. Ophiuroid radial shield length (top) and PC1 summarizing overall ophiuroid size(bottom) as a function of octocoral base width. Trendline: LOESS curve with alpha degree of smoothing set to two.
FIGURE 1 in Growth in two deep-sea associates: the octocoral Pseudogorgia bellona and the euryalid snake star Asteroschema ajax
FIGURE 1. Map of study area with sampling site of 130 octocoral / ophiuroid pairs (station CP5052), and type locality for P. bellona (station CP2557). Sampling depth range is provided below station numbers. Isobaths plotted from 0 to 1500 m depth, in 500 m increments (Pante and Simon-Bouhet, 2013).
FIGURE 3 in Growth in two deep-sea associates: the octocoral Pseudogorgia bellona and the euryalid snake star Asteroschema ajax
FIGURE 3. Correlogram showing the Spearman correlations among the coral (top 2 lines, left 2 columns) and brittle star (bottom 9 lines, right 9 columns) variables. Lower panel: blue gradient indicating a positive correlation (dark blue meaning high correlation) and red gradient indicating a negative correlation (dark red meaning a strong negative correlation). Diagonal: probability density functions for individual variables. Upper panel: biplots corresponding to each variable pair. Sample sizes: n=10 for lines 1–2, n=52 for lines 3–5 (with data on oral and aboral sides of the ophiuroids, see methods), n=124 for lines 6–10 (with data on aboral side only, see methods).
FIGURE 2 in Growth in two deep-sea associates: the octocoral Pseudogorgia bellona and the euryalid snake star Asteroschema ajax
FIGURE 2. Maximum likelihood tree based on partial 16S sequences for the genera Asteroschema, Ophiocreas, and Astroceras within the Euryalidae. The alignment contains 35 sequences and is 559 bp long. Support values for each node are ultrafast bootstrap values. Names of A. ajax specimens are bolded.
Data from: Projecting the recovery of a long-lived deep-sea octocoral species after the Deepwater Horizon oil spill using structured population models
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Data from: Molecular operational taxonomic units reveal restricted geographic ranges and regional endemism in the Indo‐Pacific octocoral family Xeniidae
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Data from: Niche divergence by deep-sea octocorals in the genus Callogorgia across the continental slope of the Gulf of Mexico
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Data from: Vectored dispersal of Symbiodinium by larvae of a Caribbean gorgonian octocoral
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Data from: Testing the depth-differentiation hypothesis in a deepwater octocoral
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Data from: A possible archaic precursor of the octocoral structural plan from the Estonian Ordovician
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Data from: Contrasting patterns of population structure and gene flow facilitate exploration of connectivity in two widely distributed temperate octocorals
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Data from: Highly contrasted responses of Mediterranean octocorals to climate change along a depth gradient
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Ecological factors mediate immunity and parasitic co-infection in sea fan octocorals
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