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1,478 results for “coral reefs”
Figure 1 in Leipanthura casuarina, new genus and species of anthurid isopod from Australian coral reefs without a "five-petalled" tail (Isopoda, Cymothoida, Anthuroidea)
Figure 1. Leipanthura casuarina sp. n. a holotype female (right lateral view, pereopods not shown, oostegites indicated, pleopod 1 in operculate position) b paratype juvenile (right lateral view, pereopods shown, pleopods exposed) c head and right antennae 1 and 2, holotype female (dorsal view); e pleon and pleotelson, holotype female (dorsal view, uropods in situ) u left uropod, paratype juvenile (ventral view); left mouthparts, holotype female, in situ (md mandible mx maxilla 1 mp maxilliped). Scale bar = 0.5 mm, refers to a and b only.
Figure 1. Metatanais cylindricus Shiino 1952 female, lectotype A body, dorsal B body, lateral. Scale bar equals 1 in A new species of Metatanais Shiino, 1952 (Crustacea, Tanaidacea, Paratanaoidea) from Australian coral reefs, with a redefinition of the genus
Figure 1. Metatanais cylindricus Shiino 1952 female, lectotype A body, dorsal B body, lateral. Scale bar equals 1 mm.
Fig. 2 in A new species of Novastoa Finlay, 1926 (Mollusca: Gastropoda: Vermetidae) from coral reefs of the Pacific Ocean
Fig. 2. Novastoa rapaitiensis sp. nov. A–D. Pre-hatching larval shells from egg mass of Fig. 1M. E–F. Operculum of specimen from Rapa Iti (not from the type series). G. SEM image of lateral view of operculum, with lamina stripped away to expose underlying structure (MNHN IM-2000-31684, Rapa Iti Island, French Polynesia). H. SEM image of exterior surface of operculum (MNHN IM-2000-31684, Rapa Iti Island, French Polynesia). I. Radula of specimen from Rapa Iti. L. Central section of radula (MNHN IM-2000-31684, Rapa Iti Island, French Polynesia). M. SEM image of teleoconch sculpture after removal of surrounding substrate (UF 436684, Moorea Island, French Polynesia).
Fig. 1 in A new species of Novastoa Finlay, 1926 (Mollusca: Gastropoda: Vermetidae) from coral reefs of the Pacific Ocean
Fig. 1. Novastoa rapaitiensis sp. nov. A. Living specimens embedded in coral substrate with only apertures and heavily encrusted opercula visible (UF 400847, Moorea Island, French Polynesia, photographs by G. Paulay). B–C. Preserved specimen fractured in plane perpendicular to surface, showing both halves of broken shell and animal embedded in coral (UF 436684, Moorea Island, French Polynesia). D–E. Living specimen from Rapa Iti (MNHN IM-2000-31685) just after extraction from the shell. F. Living specimen embedded in coral that has been fractured in plane perpendicular to surface (UF 400849). – G–L. Lateral views of opercula. G. Operculum from Rapa Iti as photographed in the field just after dissection (not from the type series). H. Operculum from the Moorea Island population, French Polynesia (UF 436684). I. Operculum from the Rapa Iti Island population, French Polynesia (MNHN IM-2000-31684). L. Operculum from the Yonge Reef population, Australia (AM C.464342). – M. Egg capsule after removal from interior shell wall (more developed embryos shown in Fig. 2A–D).
Coral abundance on the inshore Great Barrier Reef 1998-2013
<p><em>Study sites: </em>Coral assemblages were surveyed at two depths (shallow: 2-4 m; deep: 5-8 m) at each of four locations on the Great Barrier Reef off Townsville; Nelly Bay (S19.167°, E146.850°) and Geoffrey Bay (S19.155°, E146.861°) on Magnetic Island and Little Pioneer Bay (S18.594°, E146.485°) and southeast Pelorus (S18.560°, E146.500°) in the Palms Island group giving a total of eight sites.</p> <p><em>Survey method</em>: Between six and nine surveys were conducted at each site between March 1998 and 2013. Between four to six replicate 15 m x 0.5 m belt transects were used at each site on each survey. The abundance of all hard and soft corals (i.e. <em>Scleractinia</em>, <em>Alcyonacea</em> and <em>Hydrocorallina</em>) with a maximum diameter greater than 5 cm within the belt transects was recorded. Coral were identified to genus following Veron (2000). We used colony abundance instead of the more commonly used metric of coral cover because it provides a better estimate of population level mortality.</p>
FIGURE 2 in A new species of Caligus Müller, 1785 (Copepoda: Siphonostomatoida: Caligidae) from coral reef plankton in the Mexican Caribbean
FIGURE 2. Caligus ilhoikimi sp. nov. (adult female holotype). A, maxilliped; B, first leg; C, detail of distal elements of first leg; D, second leg; E, detail of third exopodal segment of second leg; F, genital complex showing fifth legs and abdomen, ventral view. Scale bars: A, D = 0.2 mm; B = 0.1 mm; E, C = 0.05 mm; F = 0.5 mm.
NOAA NCCOS Assessment: Agency priorities for mapping coral reef ecosystems in American Samoa, 2023-06-06 to 2023-08-07
<p>Description:</p><p>NOAA's Coral Reef Conservation Program (CRCP) has identified a need for priority locations based on emerging management requirements in shallow coral reef areas (up to 40 meters depth) surrounding American Samoa. The priorities provided by participating agencies will inform research and monitoring activities, address current and future management needs, and maximize opportunities to leverage and complement existing regional efforts.</p><p>To meet this need, NOAA's National Centers for Coastal Ocean Science (NCCOS) developed a systematic, quantitative approach and online GIS application to gather seafloor mapping priorities from researchers and coral reef managers. Participants placed virtual coins into a grid overlaid on the project area to express the location of their mapping priorities. They also used pull-down menus to indicate specific mapping data needs and the rationale for their selections. Participants' inputs were compiled and analyzed to identify high priority areas along with their justifications and requirements. A total of nine participant groups entered their mapping priorities into the online tool. Identifying these high priority areas provide a critical spatial framework for prioritizing mapping efforts in shallow coral reef ecosystems in American Samoa.</p><p>Purpose:</p><p>The overall goal of the project was to systematically gather and quantify suggestions for mapping needs to support management of shallow coral reef ecosystems along the coast of the American Samoa. This dataset supports these goals by compiling input from a diversity of regional experts on their recommended priorities for mapping data collection.</p><p>Methods:</p><p>An advisory group was established which included individuals from NOAA CRCP and NOAA Fisheries. This advisory team customized the prioritization process specifically to meet the needs of CRCP and local coral reef manager priorities. In the online prioritization tool the study area was divided into 160 hexagonal grid cells 2.6 km2 in size. Existing relevant spatial datasets (e.g., bathymetry layers, Sanctuary Protection Areas, etc.) were provided as a digital atlas to help participants understand information and data gaps within the project area and to identify locations they wanted to prioritize for future data collections. Each participant was provided with 50 virtual coins to place into grid cells that they wished to prioritize. They were instructed to place more coins in grid cells that were higher priorities. A maximum of 5 coins could be placed into an individual grid cell. Respondents also reported why these locations were important by selecting a minimum of one, and a maximum of two, management uses from the following list: endangered species management (e.g.,), habitat restoration, monitoring, coastal vulnerability planning, watershed management, fisheries management, consultations and permitting, emergency response, and spatial protection and management. Respondents also reported requirements of data were needed in priority cells. A minimum of one, to a maximum of two choices were selected from the following list: delineations of large topographic features, delineations of hard vs. soft bottom, models of habitat suitability for key taxa or communities, delineations of substrate type (e.g. sand, mud, coral, rock), models of presence/absence or density of corals, identification of coral species and their local environments, documentation of individual specimen condition. Coin values were summarized and mapped to identify high priority areas, reasons for those priorities, and information needs. This ESRI shapefile contains the 2.6 km2 grid cells used in this prioritization and their associated coin values overall, as well as by management use, data product, and mapping methodology. Other summary values include the number of participants, number of participating groups, number of management uses, and number of data requirements. Additionally, coins for microscale (identification of coral species and their local environments and documentation of individual specimen condition), mesoscale (delineations of substrate type, models of presence/absence/density of corals), and regional (delineations of topographic features, delineations of hard vs. soft bottom, models of habitat suitability) requirements were summarized. Also included is a ranking of each grid cell based on the total number of coins, management uses, and participating groups allocating coins in the respective cell. For a complete description of the process and analysis see: Hile et al. 2023, in prep.</p>
Universal spatial properties of coral reefs
<p>Georeferenced database on the spatial properties of all individual shallow-water tropical coral reefs worldwide. The dataset was obtained by processing and analyzing the global-scale coral reef benthic data provided by the Allen Coral Atlas (ACA), a publicly available dataset of high-resolution satellite imagery and machine learning-based coral reef classifications. </p> <p>The original data, already divided into different coral provinces, was segmented to identify the individual reefs of each province using a label assignment algorithm. This allows to analyze several spatial properties of coral reefs such as the size distribution, area-perimeter relationship, fractal dimensions and shape measures.</p> <p>The dataset contains the following measures for each individual reef in each coral province:</p> <ul> <li>Area (m²)</li> <li>Perimeter (m)</li> <li>Surface fractal dimension</li> <li>Perimeter fractal dimension</li> <li>Compactness</li> <li>Diameter ratio</li> <li>Distance to nearest reef</li> <li>Longitude</li> <li>Latitude</li> <li>Geometry</li> </ul>
Data used for "Assessing spatiotemporal change in coral reef social-ecological systems"
<p>Coral reef data used for Eason, T. and Garmestani, A. S., Assessing spatiotemporal change in coral reef ecosystems. Under Review (Ecology and Society)</p> <p>The raw data was gathered from a coral bleaching study performed by Sully et al (2019). In our current study, we used data spanning from 2003-2016. We amalgamated station names and associated data when the station locations (latitude and longitude) remained essentially the same, but were named slightly different from year to year. </p> <p>Reference: Sully S, Burkepile DE, Donovan MK, Hodgson G, van Woesik R. A global analysis of coral bleaching over the past two decades. Nat Commun. 2019;10(1):1264</p>
Context-dependent multimodal behaviour in a coral reef fish: Stage 1 & 2 total duration and count data in behaviour trials
<p>Animals are expected to respond flexibly to changing circumstances, with multimodal signalling providing potential plasticity in social interactions. Whilst numerous studies have documented context-dependent behavioural trade-offs in terrestrial species, far less work has considered such decision-making in fish, especially in natural conditions. Coral reef ecosystems host 25% of all known marine species, making them hotbeds of competition and predation. We conducted experiments with wild Ambon damselfish (<em>Pomacentrus amboinensis)</em> to investigate context-dependent responses to a conspecific intruder; specifically, how nest defence is influenced by an elevated predation risk. We found that nest-defending male Ambon damselfish responded aggressively to a conspecific intruder, spending less time sheltering and more time interacting, as well as signalling both visually and acoustically. In the presence of a model predator compared to a model herbivore, males spent less time interacting with the intruder, with a tendency towards reduced investment in visual displays compensated for by an increase in acoustic signalling instead. We therefore provide ecologically valid evidence that the context experienced by an individual can affect its behavioural responses and multimodal displays towards conspecific threats.</p>
Fig. 20 in Taxonomic diversity of marine planktonic 'y-larvae' (Crustacea: Facetotecta) from a coral reef hotspot locality (Japan, Okinawa), with a key to y-nauplii
Fig. 20. Relative abundance of lecithotrophic y-nauplii at Sesoko Island (Okinawa, Japan) during field work in 2018 and 2019. Grey bars denote the number of lecithotrophic nauplii of each morphospecies that survived until the last naupliar stage during laboratory rearing. Blue bars show the numbers of cyprids that successfully molted from these last-stage nauplii. Images of all lecithotrophic y-naupliar morphospecies obtained during those two years are shown to the same scale.
Fig. 19 in Taxonomic diversity of marine planktonic 'y-larvae' (Crustacea: Facetotecta) from a coral reef hotspot locality (Japan, Okinawa), with a key to y-nauplii
Fig. 19. Last-stage nauplii of four different morphospecies of y-larvae (Facetotecta) from Sesoko Island (Okinawa, Japan). A–E. Y-nauplius Type AK. F–G. Y-nauplius Type AO. H. Y-nauplius Type AM. I–K. Y-nauplius Type AN. Shown either in life (A–B, H) or as slide-mounted exuviae (C–G, I–K). Abbreviations: A1 = first antenna; A2 = second antenna; Md = mandible.
Fig. 16 in Taxonomic diversity of marine planktonic 'y-larvae' (Crustacea: Facetotecta) from a coral reef hotspot locality (Japan, Okinawa), with a key to y-nauplii
Fig. 16. Last-stage nauplii of two different morphospecies of y-larvae (Facetotecta) from Sesoko Island (Okinawa, Japan). A–E. Y-nauplius Type Y. F–J. Y-nauplius Type O*. Shown either in life (A, F–G) or as slide-mounted exuviae (B–E, H–J). Abbreviations: A1 = first antenna; A2 = second antenna; Md = mandible.
Fig. 18 in Taxonomic diversity of marine planktonic 'y-larvae' (Crustacea: Facetotecta) from a coral reef hotspot locality (Japan, Okinawa), with a key to y-nauplii
Fig. 18. Last-stage nauplii of two different morphospecies of y-larvae (Facetotecta) from Sesoko Island (Okinawa, Japan). A–F. Y-nauplius Type AL. G–J. Y-nauplius Type AJ. Shown either in life (A–C, G–J) or as slide-mounted exuviae (D–F). Abbreviations: A1 = first antenna; A2 = second antenna; Md = mandible.
Fig. 17 in Taxonomic diversity of marine planktonic 'y-larvae' (Crustacea: Facetotecta) from a coral reef hotspot locality (Japan, Okinawa), with a key to y-nauplii
Fig. 17. Last-stage nauplii of three different morphospecies of y-larvae (Facetotecta) from Sesoko Island (Okinawa, Japan). A–E. Y-nauplius Type AF. F–K. Y-nauplius Type N*. L. Y-nauplius Type AP. Shown either in life (A–C, F–G) or as slide-mounted exuviae (D–E, H–L). Abbreviations: A1 = first antenna; A2 = second antenna; Md = mandible. L from Grygier et al. (2019).
Fig. 15 in Taxonomic diversity of marine planktonic 'y-larvae' (Crustacea: Facetotecta) from a coral reef hotspot locality (Japan, Okinawa), with a key to y-nauplii
Fig. 15. Last-stage nauplii of two different morphospecies of y-larvae (Facetotecta) from Sesoko Island (Okinawa, Japan). A–F. Y-nauplius Type L. G–M. Y-nauplius Type AB. Shown either in life (A–C, G–J) or as slide-mounted exuviae (D–F, K–M). Abbreviations: A1 = first antenna; A2 = second antenna; Md = mandible.
Fig. 13 in Taxonomic diversity of marine planktonic 'y-larvae' (Crustacea: Facetotecta) from a coral reef hotspot locality (Japan, Okinawa), with a key to y-nauplii
Fig. 13. Last-stage nauplii of two different morphospecies of y-larvae (Facetotecta) from Sesoko Island (Okinawa, Japan). A–E. Y-nauplius Type X. F–J. Y-nauplius Type K. Shown either in life (A–B, F–H) or as slide-mounted exuviae (C–E, I–J). Abbreviations: A1 = first antenna; A2 = second antenna; Md = mandible.
Fig. 14 in Taxonomic diversity of marine planktonic 'y-larvae' (Crustacea: Facetotecta) from a coral reef hotspot locality (Japan, Okinawa), with a key to y-nauplii
Fig. 14. Last-stage nauplii of two different morphospecies of y-larvae (Facetotecta) from Sesoko Island (Okinawa, Japan). A–F. Y-nauplius Type M. G–L. Y-nauplius Type AI. Shown either in life (A–B, G–I) or as slide-mounted exuviae (C–F, J–L). Abbreviations: A1 = first antenna; A2 = second antenna; Md = mandible.
Fig. 9 in Taxonomic diversity of marine planktonic 'y-larvae' (Crustacea: Facetotecta) from a coral reef hotspot locality (Japan, Okinawa), with a key to y-nauplii
Fig. 9. Last-stage nauplii of four different morphospecies of y-larvae (Facetotecta) from Sesoko Island (Okinawa, Japan). A–C. Hansenocaris cristalabri Olesen & Grygier, 2022. D–E. Hansenocaris aquila Olesen & Grygier, 2022. F–H. Y-nauplius Type AC. I–N. Y-nauplius Type AH*. Shown either in life (A–B, F–H, I–J), as slide-mounted exuviae (D–E, K–N) or in SEM (C). Abbreviations: A1 = first antenna; A2 = second antenna; Md = mandible. A–E from Olesen & Grygier (2022).
Fig. 4 in Taxonomic diversity of marine planktonic 'y-larvae' (Crustacea: Facetotecta) from a coral reef hotspot locality (Japan, Okinawa), with a key to y-nauplii
Fig. 4. Planktotrophic (feeding) y-nauplius of morphospecies Type A*. A. Ventral view. B. Lateral view. C. Naupliar feeding apparatus of right side. D. Postero-lateral spines of left side, dorso-caudal organ, dorso-caudal spine and furcal spines. The naupliar feeding apparatus, postero-lateral spines, dorsocaudal organ and dorso-ventrally flattened body (especially the first of these) are the key characters for separating planktotrophic y-nauplii from lecithotrophic y-nauplii. Abbreviations: Bas = basis; Cox = coxa; En = endopod; 1–3 = postero-lateral spine rows on trunk.
ScienceDex guides
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
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.