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78 results for “Mesophotic coral ecosystem”
Mesophotic coral ecosystems of French Polynesia are hotspots of alpha and beta generic diversity for scleractinian assemblages
<p>Revealing how diversity varies across the depth gradient is key to understanding the role of mesophotic coral ecosystems in the functioning of coral reefs. We examined how alpha and beta generic diversity of scleractinian coral assemblages vary across a wide depth gradient for coral reefs. We studied generic diversity patterns of scleractinian corals at sixteen sites in eight islands of three archipelagos in French Polynesia, as derived from the analysis of photo-quadrats, across the seafloor from shallow to lower mesophotic depths (6 to 120 m) and on a wide geographic scale. Our sampling considered quantitative coral cover to explore the patterns of alpha and beta components of diversity across depth and horizontal space. We show that in French Polynesia, mesophotic coral ecosystems host higher alpha and beta generic diversity than shallow reefs despite decreasing coral cover with depth. The variation of coral genus richness across the depth gradient is mainly driven by a mid-domain effect with a peak at 40 m depth. At the same time, we found that the turnover of coral genera across islands (i.e., spatial beta diversity) increased steadily along the depth gradient. Our findings report the first quantitative results of coral cover and diversity from mesophotic coral ecosystems in French Polynesia and also present one of the few existing studies to examine the broad breadth of the mesophotic depth gradient. We demonstrate that mesophotic depths can host unexpectedly high generic richness of scleractinian coral assemblages. At the same time, we showed that increasing depth increases the differences in generic diversity composition across islands, whereas shallow reefs are similar in between. While a single island could conserve shallow regional biodiversity, mesophotic depths containing the richest diversity require site-specific measures, suggesting that considering these mesophotic depths in conservation is necessary to maintain regional diversity.</p>
Fig. 5 in Preliminary observations of macrobenthic invertebrates and megafauna communities in the upper mesophotic coral ecosystems in Apo Reef Natural Park, Philippines
Fig. 5. Barplots represent the total species richness across the depths (A) and reef types (B). C and E show the abundance of macrobenthic invertebrates and megafauna, respectively, with their corresponding trophic groups across depths. D and F show the abundance of macrobenthic invertebrates and megafauna, respectively, with their corresponding trophic groups across reef types.
Fig. 3 in Preliminary observations of macrobenthic invertebrates and megafauna communities in the upper mesophotic coral ecosystems in Apo Reef Natural Park, Philippines
Fig. 3. Macrobenthic invertebrate species in Apo Reef Natural Park. A, Holothuria atra; B, Holothuria fuscogilva; C, Thelenota anax; D, Thelenotarubra lineata; E, Thromidia catalai; F, Tridacna sp.; G, Xetospongia sp.
Fig. 2 in Preliminary observations of macrobenthic invertebrates and megafauna communities in the upper mesophotic coral ecosystems in Apo Reef Natural Park, Philippines
Fig. 2. Reef fish and marine reptile megafaunal species in Apo Reef Natural Park. A, Eretmochelys imbricata; B, Bolbometopon muricatum; C, Balistoides viridescens; D, Cheilinus undulatus; E, Caranx melampygus; F, Cephalopholis argus; G, Macolor niger; H, Sphyraena qenie; I, Triaenodon obesus.
Fig. 1 in Preliminary observations of macrobenthic invertebrates and megafauna communities in the upper mesophotic coral ecosystems in Apo Reef Natural Park, Philippines
Fig. 1. Map showing the location of Apo Reef Natural Park in the Philippines, as well as, the study sites that were surveyed in March 2016.
Fig. 4 in Preliminary observations of macrobenthic invertebrates and megafauna communities in the upper mesophotic coral ecosystems in Apo Reef Natural Park, Philippines
Fig. 4. Results of the non-metric multidimensional scaling (nMDS) across depths (A) and reef types (B). Analysis of similarity (ANOSIM) results along with the corresponding p values are included in the plots (A and B). Vectors showing the influence (direction and magnitude) of the different benthic cover on the species composition (C).
Mesophotic coral ecosystems of French Polynesia are hotspots of alpha and beta generic diversity for scleractinian assemblages
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Data from: Predicting the distribution of Mesophotic coral ecosystems in the Chagos Archipelago
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Data from: Assessment of mesophotic coral ecosystem connectivity for proposed expansion of a marine sanctuary in the northwest Gulf of Mexico: population genetics
While there are several areas containing shallow coral habitats in the Gulf of Mexico (GOM), the availability of suitable reef habitat at mesophotic depths (~30–150 m) along the continental shelf margin suggests the potential for ecologically connected coral populations across hundreds of kilometers in the northwest (NW) GOM. The NW GOM includes a relatively high proportion of mesophotic habitats, including salt diapirs in Flower Garden Banks National Marine Sanctuary (FGBNMS), Bright Bank, and McGrail Bank, the latter two being Habitat Areas of Particular Concern (HAPCs). In response to a proposed expansion plan for the sanctuary boundaries to include additional mesophotic banks in the NW GOM, we investigated the genetic connectivity of the depth-generalist coral Montastraea cavernosa, a ubiquitous member of scleractinian communities throughout the Tropical Western Atlantic. Montastraea cavernosa populations in the NW GOM demonstrated strong connectivity with relatively high levels of gene flow and no significant genetic differentiation occurring over banks up to 120 km apart. Historical migration models based on genetic data predicted panmixia of M. cavernosa across the NW GOM. The comparisons between genetic and biophysical models (see Garavelli et al., 2018; associate manuscript) highlight not only the importance of incorporating multiple assessments of connectivity into management schemes, but also the potentially stochastic nature of oceanographic patterns in the NW GOM and their effect on migration estimates among coral habitats. These trends indicate that M. cavernosa populations have remained well-connected in the NW GOM and that coral populations on each bank have likely been receiving larval recruitment through time. Thus, M. cavernosa populations should be managed as a combined unit within the NW GOM, which supports the proposal to expand the NMS boundaries to include mesophotic habitats beyond West and East FGB.
FIGURE 3 in New genus and new species of Cumacea (Crustacea: Peracarida) from the mesophotic coral ecosystem of SW Puerto Rico, Caribbean Sea
FIGURE 3. Cumellana caribbica gen. et sp. nov. holotype, immature female A maxilliped 3; B, pereopod 1; C, pereopod 2; D, pereopod 2, detail of dactylus; E, pereopod 3; F, pereopod 4; G, pereopod 5; H, uropod. Scales: A–C, E–H, 0.1 mm, D, 0.05 mm.
FIGURE 1 in New genus and new species of Cumacea (Crustacea: Peracarida) from the mesophotic coral ecosystem of SW Puerto Rico, Caribbean Sea
FIGURE 1. Cumella alexandrinae sp. nov. holotype, immature female A, body, lateral view; B, body, dorsal view; C, antenna 1; D, maxilliped 3; E, pereopod 1; F, pereopod 2; G, pereopod 3; H, pereopod 4; I, pereopod 5, broken; J, uropod. Scales: A,B, 0.5 mm; C, 0.1 mm; D, 0.1 mm; E–I, 0.2 mm; J, 0.5 mm.
FIGURE 2 in New genus and new species of Cumacea (Crustacea: Peracarida) from the mesophotic coral ecosystem of SW Puerto Rico, Caribbean Sea
FIGURE 2. Cumellana caribbica gen. et sp. nov. holotype, immature female A, body, lateral view; B, antenna 1; C, antenna 2; D, labrum; E, mandibule; F, maxilla 1; G, maxilla 2; H, maxilliped 1; I, maxilliped 2. Scales: A, 0.5 mm; B, 0.1 mm; C, 0.1 mm, D–I, 0.05 mm.
FIGURE 4 in A new species of Boca Lowry & Stoddart, 1997 (Amphipoda: Lysianassoidea: Aristiidae) from a mesophotic coral ecosystem off Puerto Rico, Caribbean Sea
FIGURE 4. Type locality of Boca gurui sp. nov. Hole-in the-Wall, 90.5 m (297 ft.), off SW Puerto Rico, Caribbean Sea (Distribution map by Danielle P. Cintra).
FIGURE 3 in A new species of Boca Lowry & Stoddart, 1997 (Amphipoda: Lysianassoidea: Aristiidae) from a mesophotic coral ecosystem off Puerto Rico, Caribbean Sea
FIGURE 3. Boca gurui sp. nov. Hole-in the-Wall, 90.5 m (297 ft.), off SW Puerto Rico, Caribbean Sea, UFBA 2129. Scale bars: 0.2 mm for Ep1-3 and Ur1-3; 0.05 mm for U3 and T; 0.1 mm for the remainder.
FIGURE 2 in A new species of Boca Lowry & Stoddart, 1997 (Amphipoda: Lysianassoidea: Aristiidae) from a mesophotic coral ecosystem off Puerto Rico, Caribbean Sea
FIGURE 2. Boca gurui sp. nov. Hole-in the-Wall, 90.5 m (297 ft.), off SW Puerto Rico, Caribbean Sea, UFBA 2129. Scale bars: 0.2 mm.
FIGURE 1 in A new species of Boca Lowry & Stoddart, 1997 (Amphipoda: Lysianassoidea: Aristiidae) from a mesophotic coral ecosystem off Puerto Rico, Caribbean Sea
FIGURE 1. Boca gurui sp. nov. Hole-in the-Wall, 90.5 m (297 ft.), off SW Puerto Rico, Caribbean Sea, UFBA 2129. Scale bars: 0.2 mm for Hd+E and A1–2; 0.05 mm for Mx1IP; 0.1 mm for the remainder.
FIGURE 7 in New genus and new species of Caprellidae (Crustacea: Peracarida: Amphipoda) from the mesophotic coral ecosystems of Puerto Rico and St. Croix, Caribbean Sea
FIGURE 7. Liropus gurui sp. nov. Lateral view of holotype male, 4.4 mm, and paratype female "a", 3.5 mm.
FIGURE 10 in New genus and new species of Caprellidae (Crustacea: Peracarida: Amphipoda) from the mesophotic coral ecosystems of Puerto Rico and St. Croix, Caribbean Sea
FIGURE 10. Liropus gurui sp. nov. Pereopods 3, 4 and 5, and abdomen (lateral and ventral view) of holotype male, 4.4 mm. Pereopods 3 and 4 and abdomen of paratype female "a", 3.5 mm. Pereopods 6 and 7 of paratype male "c", 2.1 mm.
FIGURE 4 in New genus and new species of Caprellidae (Crustacea: Peracarida: Amphipoda) from the mesophotic coral ecosystems of Puerto Rico and St. Croix, Caribbean Sea
FIGURE 4. Borikenella spinosa gen. nov., sp. nov. Pereopods 3 and 4 of holotype male, 4.2 mm. Pereopods 3–7 of paratype female "a", 4.1 mm.
FIGURE 6 in New genus and new species of Caprellidae (Crustacea: Peracarida: Amphipoda) from the mesophotic coral ecosystems of Puerto Rico and St. Croix, Caribbean Sea
FIGURE 6. Borikenella spinosa gen. nov., sp. nov. Variation in size and body projections. A, B: juveniles; C: immature male; D, E: premature females; F-H: mature females.
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
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OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.