Relevant bibliographies by topics / Coralli

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Academic literature on the topic 'Coralli'

Author: Grafiati
Published: 4 June 2021
Last updated: 10 March 2023

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Journal articles on the topic "Coralli"

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Sabee, Olivia. "Jean Coralli and the Romantic Ballet." Dance Chronicle 43, no. 1 (January 2, 2020): 91–95. http://dx.doi.org/10.1080/01472526.2019.1710442.

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Wang, Yong-Xia, Ji-Hui Liu, Yi-Guang Chen, Xiao-Xia Zhang, Zhi-Gang Wang, Yun Chen, Shi-Ping Tian, Bin Hu, and Xiao-Long Cui. "Amorphus orientalis sp. nov., an exopolysaccharide-producing bacterium isolated from salt mine sediment." International Journal of Systematic and Evolutionary Microbiology 60, no. 8 (August 1, 2010): 1750–54. http://dx.doi.org/10.1099/ijs.0.015735-0.

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A Gram-negative, moderately halophilic, non-motile, aerobic bacterium, designated strain YIM D10T, was isolated from a salt mine sediment sample from Yunnan, south-west China. The strain grew optimally in the presence of 3–8 % NaCl and at 28 °C and pH 7.5. The polar lipid profile of strain YIM D10T comprised diphosphatidylglycerol, an unknown phospholipid and two unknown aminolipids. The major cellular fatty acids were C18 : 1 ω7c (30.5 %), C19 : 0 cyclo ω8c (29.3 %) and C18 : 0 (13.2 %). The respiratory quinone was ubiquinone 10 (Q-10). The genomic DNA G+C content was 65.4 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain YIM D10T was closely related to Amorphus coralli RS.Sph.026T (96.8 % gene sequence similarity). Results confirmed the placement of isolate YIM D10T within the genus Amorphus. However, DNA–DNA hybridization between strain YIM D10T and the type strain of the only recognized species of the genus Amorphus, A. coralli RS.Sph.026T, was 16.7 %, showing clearly that the isolate constitutes a new genospecies. Strain YIM D10T could be clearly differentiated from A. coralli and other phylogenetic neighbours on the basis of some phenotypic, genotypic and chemotaxonomic features. Therefore, strain YIM D10T is considered to represent a novel species of the genus Amorphus, for which the name Amorphus orientalis sp. nov. is proposed; the type strain is YIM D10T (=DSM 21202T=CCTCC AA 208035T).
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Martinuzzi, Paola. "Elena Zilotti, Carlo Coralli: dalle scene filodrammatiche alla Comédie-Italienne." Studi Francesi, no. 195 (LXV | III) (December 1, 2021): 609–10. http://dx.doi.org/10.4000/studifrancesi.47224.

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Chen, Wen-Ming, Kai-Rou Lin, and Shih-Yi Sheu. "Endozoicomonas coralli sp. nov., isolated from the coral Acropora sp." Archives of Microbiology 201, no. 4 (November 12, 2018): 531–38. http://dx.doi.org/10.1007/s00203-018-1591-2.

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McGowan, Margaret M. "José Sasportes and Patrizia Veroli (eds.), Giovanni Coralli, L'Autore di Giselle." Dance Research 36, no. 2 (November 2018): 269–70. http://dx.doi.org/10.3366/drs.2018.0241.

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Chimetto, Luciane A., Ilse Cleenwerck, Marcelo Brocchi, Anne Willems, Paul De Vos, and Fabiano L. Thompson. "Marinobacterium coralli sp. nov., isolated from mucus of coral (Mussismilia hispida)." International Journal of Systematic and Evolutionary Microbiology 61, no. 1 (January 1, 2011): 60–64. http://dx.doi.org/10.1099/ijs.0.021105-0.

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A Gram-negative, aerobic bacterium, designated R-40509T, was isolated from mucus of the reef builder coral (Mussismilia hispida) located in the São Sebastião Channel, São Paulo, Brazil. The strain was oxidase-positive and catalase-negative, and required Na+ for growth. Its phylogenetic position was in the genus Marinobacterium and the closest related species were Marinobacterium sediminicola, Marinobacterium maritimum and Marinobacterium stanieri; the isolate exhibited 16S rRNA gene sequence similarities of 97.5–98.0 % with the type strains of these species. 16S rRNA gene sequence similarities with other type strains of the genus Marinobacterium were below 96 %. DNA–DNA hybridizations between strain R-40509T and the type strains of the phylogenetically closest species of the genus Marinobacterium revealed less than 70 % DNA–DNA relatedness, supporting the novel species status of the strain. Phenotypic characterization revealed that the strain was able to grow at 15–42 °C and in medium containing up to 9 % NaCl. The isolate could be differentiated from phenotypically related species by several features, including its ability to utilize d-alanine, l-alanine, bromosuccinic acid, β-hydroxybutyric acid and α-ketovaleric acid, but not acetate or l-arabinose. It produced acetoin (Voges–Proskauer), but did not have esterase lipase (C8) or catalase activities. It possessed C18 : 1 ω7c (35 %), summed feature 3 (iso-C15 : 0 2-OH and/or C16 : 1 ω7c; 25 %) and C16 : 0 (22 %) as major cellular fatty acids. The DNA G+C content was 58.5 mol%. The name Marinobacterium coralli sp. nov. is proposed to accommodate this novel isolate; the type strain is R-40509T (=LMG 25435T =CAIM 1449T).
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Sheu, Der-Shyan, Shih-Yi Sheu, Pei-Bei Xie, Sen-Lin Tang, and Wen-Ming Chen. "Thalassotalea coralli sp. nov., isolated from the torch coral Euphyllia glabrescens." International Journal of Systematic and Evolutionary Microbiology 68, no. 1 (January 1, 2018): 185–91. http://dx.doi.org/10.1099/ijsem.0.002478.

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Lee, Dong-Jin, and Robert J. Elias. "Paleobiologic and evolutionary significance of corallite increase and associated features inSaffordophyllum newcombae(Tabulata, Late Ordovician, southern Manitoba)." Journal of Paleontology 74, no. 3 (May 2000): 404–25. http://dx.doi.org/10.1017/s0022336000031681.

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Saffordophyllum newcombaeFlower, 1961, displays unique abilities and an unprecedented range in types of corallite increase. Cerioid growth was characteristic, but colonies on soft substrates could grow in a tollinaform manner during early astogeny. The capacity for recovery from damage and partial mortality is amazing. Rejuvenation may have been accompanied by peripheral expansion in some cases. Rapid regeneration could involve axial increase. Circular lacunae that formed during recovery became sites of rapid lateral increase or corallite decrease.Two types of axial increase occurred within coralla. Lateral increase was concentrated mainly along the basal wall and adjacent to certain circular lacunae. In typical cerioid parts of the corallum, lateral increase seldom yielded “adult” corallites, but incipient lateral offsets could be numerous. The level of colony integration was probably moderately high. There was likely soft-tissue continuity among polyps, coordination of polyp behavior, subjugation of individuals for the good of the colony, and perhaps astogenetic control.Saffordophyllum newcombaeis considered to be a tabulate coral, although one type of axial increase is similar to that in a few rugose corals and the other type of axial increase as well as possible peripheral expansion resemble modes of increase in some coralline sponges. Lateral increase is considered compatible with cnidarian rather than poriferan biology. Corallite size is typical of tabulates.Saffordophyllummay not be the direct ancestor of favositid tabulates, and may not even be closely related to them;S. newcombaeis very different fromPaleofavositesandFavosites.The remarkable range in forms of increase discovered inS. newcombaedemonstrates the critical need for detailed paleobiologic studies, if we are to understand the early evolutionary history of corals and to establish reliable criteria for distinguishing various coral groups and homeomorphs.
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Li, Jie, and Si Zhang. "Kocuria coralli sp. nov., a novel actinobacterium isolated from coral reef seawater." International Journal of Systematic and Evolutionary Microbiology 70, no. 2 (February 1, 2020): 785–89. http://dx.doi.org/10.1099/ijsem.0.003825.

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Young, Graham A., and Robert J. Elias. "The relationship between growth form and internal morphology in favositid corals." Paleontological Society Special Publications 6 (1992): 323. http://dx.doi.org/10.1017/s2475262200008832.

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Growth form in Paleozoic colonial corals is commonly used as an indicator of paleoenvironmental conditions. However, this character was also influenced by genetic factors, and it must be recognized that aspects of internal morphology were significant in the development of external form. In favositids a primary control on growth form was exerted by rates of corallite divergence, offsetting, and vertical growth, since the shape of the corallum base and growth surface resulted largely from these factors. This relationship worked in both directions; modifications of external shape that were apparently related to environmental conditions are reflected by measurable changes in internal morphology. In any favositid the most efficient packing of corallites is hexagonal, but this arrangement was thrown out of equilibrium by corallite offsetting. Rate of offsetting was largely controlled by internal packing stress and thus by the degree of corallite divergence. Periodic offsetting is reflected by a bimodal corallite size distribution (dimetrism). The distribution of corallite shapes and sizes in different parts of a corallum is therefore a key indicator of mode of growth; growth form can be seen to have had an influence on characters that are commonly used as species discriminators.This study is based on analysis of serial sections of Paleofavosites subelongus (Savage) from the uppermost Ordovician to lowermost Silurian of the east-central United States. This species is highly variable in internal characters and the size range and type of corallite packing can differ substantially between coralla. The early part of each colony's astogeny played a major role in the development of growth form; specimens at either end of the variation continuum show contrasting modes of growth which generated different growth forms. In one mode, colonies produced broad bases through early axial offsetting and developed patterns of growth in which corallites expanded rapidly to mature sizes. Subsequent rates of offsetting were sufficiently high that dimetrism is common; such specimens most commonly have domical growth forms. In a second mode, colonies with lower rates of early axial offsetting have conical bases, a lower degree of dimetrism, and commonly bulbous forms.Patterns of subsequent growth of all coralla demonstrate the connection between internal and external characters. Periods of increased axial offsetting and higher rates of corallite expansion occurred in conjunction with phases of lateral colony expansion. Elsewhere in the colony, offsetting was also periodic but occurred predominantly at the edges of the axis and in colony margins; this pattern allowed the axial polyps to continue upward growth while shorter-lived polyps were generated to maintain lateral parts of the growth surface. Bursts of offsetting commonly occurred in bands with close-spaced tabulae and thickened corallite walls, and were sometimes associated with intervals of increased corallite mortality. Paleofavosites subelongus was apparently unable to produce offsets at the outermost colony margins and was thus confined to upwardly expanding growth forms with outcurved corallites. Serial sectioning of other species of Paleofavosites in which tabular forms predominate indicates that coralla with such shapes were able to generate abundant offsets along colony margins and could maintain axial regions with predominantly hexagonal corallites and low rates of offsetting.Although internal characters apparent early in astogeny set the basic mode of growth of each Paleofavosites subelongus colony, the subsequent growth form was influenced by numerous other factors, including reorientation during life, partial mortality of the growth surface, and probable changes in environmental conditions. In most populations one of the two modes of basal growth predominates, but populations with overlapping characters also occur. The growth pattern set down near the base of each corallum may be related to the environmental regime prevailing at and following the time of colony initiation, but may also reflect genetic differences within and between populations.
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Dissertations / Theses on the topic "Coralli"

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NASTO, INA. "CARATTERIZZAZIONE DELLE COMUNITA A CORALLO DI ACQUA FREDDA NEL ADRIATICO MERIDIONALE." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2017. http://hdl.handle.net/10281/180848.

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INTRODUZIONE GENERALE Le comunità di coralli di acqua fredda sono estremamente importanti per l'ecosistema bentonico. Essendo stato dichiarato un importante ecosistema sia per il valore ecologico che per quello economico, la proposta di questa tesi è quella di descrivere le comunità di coralli d'acqua fredda nell'Adriatico sud. Le attività di ricerca si sono concentrate su quattro diversi argomenti elencati di seguito. La fauna bentonica di Sessile associata al corallo sub-fossile dell'acqua fredda dall'Albania Questo studio presenta una descrizione preliminare della fauna associata al quadro corallo subfossile in due siti recentemente trovati in Albania. La Macrofauna è stata registrata durante due indagini di pesca sperimentali condotte nel marzo 2015 e nel maggio 2016 in due zone profonde della costa albanese, tra la profondità di 190 e 230 m. Sono stati analizzati campioni di coralli subfossili di Lophelia pertusa e Dendrophyllia cornigera per identificare la fauna associata. Sono state identificate 82 specie, 2 Foraminifera, 22 Porifera, 6 Cnidaria, 25 Mollusca, 14 Annelida, 1 Arthropoda, 11 Bryozoa, 1 Echinodermata, di cui 75 specie che sono nuovi record per la fauna albanese. Tutte le specie identificate sono state precedentemente riportate nelle aree coralline di Santa Maria di Leuca e Bari Canyon. Questo studio ha aggiornato la conoscenza della biodiversità del profondo mare Adriatico sudorientale, nonché della fauna marina albanese in particolare. Nuove informazioni ottenute per le specie di acque profonde confermano l'importante contributo del quadro di corallo dell'acqua fredda nella biodiversità del segnale acustico. Variazioni morfologiche spatiotemporali del Mediterraneo Lophelia pertusa. Per valutare se la variazione morfologica di L. pertusa segue un modello specifico basato su variabili ambientali (o altre), questo studio combina due differenti approcci morfometrici: la morfologia lineare lineare classica e l'utilizzo di punti di riferimento delle coordinate tridimensionali (landmarks). Gli obiettivi principali di questo studio sono quello di verificare l'esistenza di gruppi morfologici distinti all'interno della specie cosmopolita L. pertusa nel Mediterraneo e di individuare eventuali relazioni tra gruppi morfologici (sia nei coralli moderni che nei coralli fossili) e (paleo) delle condizioni oceanografiche. Applicazioni della tomografia computazionale a raggi X nello studio della morfologia della L. Pertusa. Lo scopo di questo lavoro è stato quello di confrontare 4 colonie di Lophelia pertusa corallo sub-fossile, provenienti dal Mediterraneo e dall'Atlantico orientale. I sottogruppi sono riferimenti importanti che testimoniano le condizioni ambientali del paleo-ambientale, pertanto il loro studio morfologico è un tema importante per l'ecologia. Lo scopo di questo è stato quello di indagare se esistono differenze veramente morfologiche tra queste quattro colonie Lophelia, sia nella morfologia dei coralli e nella loro organizzazione spaziale. La tomografia computerizzata dei campioni ci ha permesso di misurare alcune variabili scelte secondo le caratteristiche della specie. Datazione la morte dei coralli sclerattiniani profondi del mare sud-orientale Questa parte del mio studio riguarda la precisa datazione U / T di coralli morti provenienti provenienti da acque albanesi. Gli Smples furono ottenuti dall'Albania dalla crociera oceanografica CNR CoCoMap13 nel Mare Adriatico del sud-est e da una Lophelia pertusa colonia catturata durante le indagini di pesca sperimentali a nord della baia di Vlora. Lo scopo è di datare la presenza di CWC nelle acque profonde albanesi, valutando anche il tempo per l'insediamento e la scomparsa del CWC nel AdriATICO
The present study regarding the Albanian CWC and associated biota consists of specific research activities focused on the four main topics listed below. Sessile benthic fauna associated with sub-fossil Cold Water Coral from off Albania This section presents a preliminary description of the fauna associated with sub-fossil coral framework in two sites recently found in off Albania. Macrofauna was recorded during two experimental fishing surveys conducted in March 2015 and May 2016 in two deep areas of the Albanian coast, between the depth of 190 to 230 m. Sub-fossil coral samples of L. pertusa and D. cornigera were analyzed to identify the associated fauna. A total of 82 species were identified, 2 Foraminifera, 22 Porifera, 6 Cnidaria, 25 Mollusca, 14 Annelida, 1 Arthropoda, 11 Bryozoa, 1 Echinodermata, including 75 species that are new records for the Albanian fauna. Morphological variations of Mediterranean Lophelia pertusa The main aims of this study are to test the existence of distinct morphological groups within the quasi-cosmopolitan species L. pertusa in the Mediterranean and to identify, if any, relationships between morphological groups (both in modern and fossil corals) and (paleo) oceanographic conditions. Applications of X-ray Computed Tomography in the morphometric study of the Adriatic Lophelia pertusa The aim of this analysis was to investigate whether there are really morphological differences between these four Lophelia colonies, both in the morphology of the corallites and in their spatial organization. Computed tomography made possible to measure some variables chosen according to the species's characteristics. Dating the Albanian Adriatic cold water corals This part of my study deals on the the precise U/Th dating of dead corals specimens sourced coming from Albanian waters. Smples were obtained off Albania by the oceanographic CNR CoCoMap13 cruise in the southeastern Adriatic Sea and one Lophelia pertusa colony caught during experimental fishing surveys in north of the Vlora Bay. The purpose is to time in the presence of CWC in Albanian deep waters, assessing also the tempo for CWC settlement and demise in the southern Adriatic Sea.
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MOCCIA, DAVIDE. "Deep coral communities along Sardinian submarine canyons." Doctoral thesis, Università degli Studi di Cagliari, 2016. http://hdl.handle.net/11584/266681.

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Submarine canyons deeply incise the Mediterranean continental margins, becoming authentic conduits between the continental shelves and deep-sea basins. Enhanced habitat heterogeneity and organic inputs allow a noticeable benthic biodiversity development, creating authentic “hotspots” of biodiversity. However, if knowledge on distribution and composition of benthic assemblages dwelling in different canyon systems across the Mediterranean basin is considerably increasing; on the other hand, factors driving their distribution and biodiversity at multiple spatial scales are still difficult to discern and thus far to being well understood. Among these benthic communities, suspension feeders take considerable advantages from environmental features of canyons; because of this, they are often dominant showing dense patches of large Anthozoan. These organisms, along with other components of the benthos such as sponges, ascidians and bryozoans, enhance the three-dimensional development of the habitat, constituting the so called ‘animal forests’ which play a key ecological role in the benthic-pelagic coupling processes. Moreover, due to their slow growth rates, longevity and tridimensional structure, these species are particularly vulnerable towards mechanical injuries inflicted by fishing gears. In this regard, supporting knowledge on their distribution patterns and ecology are needed in order to develop sound conservation measures. Therefore, through a non-invasive protocol based on ROV footage coupled with multi-beam dataset, this thesis aims to document Sardinian deepwater coral forests communities dwelling along different canyons and other geological features of the Sardinian continental margin. The present work compares local, and regional biodiversity of coral communities inhabiting contrasting and similar geological features of the continental margin, considering different spatial scales and also exploring the role of a subset of environmental descriptors, obtained through the image analysis, in determining the observed patterns. Overall, multi-variate analyses emphasized a higher variability in the composition of coral communities at the smallest spatial scale investigated that overcomes the variability at regional/geographical scale. In particular, in the first study, patterns of observed diversity were significant different within the same geological feature rather than among contrasting geological setting, and the tested environmental variables explained the patterns of observed diversity. In the second study, results suggested that coral community composition differed across canyons within the same area, but not among the three geographical areas, and that variations patterns appeared to be mainly constrained by differences in the hydrodynamic conditions operating on local scales. The last part of the thesis aimed to describe the distribution and demographic features of scleractinian habitat-forming cold water coral Madrepora oculata encountered in the north eastern and southern western canyons of the island of Sardinia. These species are documented for the first time in the northeast Sardinian continental margin, extending the geographical framework of the recently discovered “Sardinian cold water coral province”. Results revealed that, as for all the best developed CWC situations present in the Mediterranean Sea, the new Sardinian province is clearly dominated by patches of M. oculata occurring with small/medium size colonies in two different type of substrate (rocky wall and inclined silted bottom). Results from the present thesis increase knowledge on deep coral assemblages inhabiting Sardinian submarines canyons, providing new insights on the scale-dependent structure and dynamics of deep dwelling coral assemblages. These results will likely have considerable implications for the spatial development of forthcoming conservation strategies to preserve such biodiversity hotspots.
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CAU, ALESSANDRO. "Deep coral forests from the Island of Sardinia." Doctoral thesis, Università degli Studi di Cagliari, 2015. http://hdl.handle.net/11584/266561.

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Forests are major ecological structures of the terrestrial environment that enhance biodiversity through different kinds of specialized relations that exist between the vegetal canopy and organisms from all animal reigns. The concept of forest has recently been transplanted in the marine environment; marine forests share all ecological features of terrestrial forests. What is actually peculiar in the marine environment is the shift from the ‘vegetal’ forest in shallow depths (within the photic zone) to the ‘animal’ forest (dwelling in the circalittoral zone) throughout the depth gradient. ‘Animal forest’ concept refers to forests entirely constituted by animals, that substitute to the vegetal canopy in the three dimensional development of the habitat. Benthic suspension feeders are, in fact, the main contributors to the habitat biomass and create important three-dimensional structures that enhance the ecosystem’s overall complexity. Among factors controlling the horizontal distribution of such ecosystems, the geomorphology of the sea bottom is thought to be a key factor in the distribution of deep-sea coral as many coral species require hard substrates, particular light and current conditions. Through the combination of non-invasive techniques such as ROV footage coupled with multi-beam surveys in contrasting geological settings, this thesis aims to test (both at species and community level) if and how distribution and composition of coral forests dwelling in the mesophotic environment (from 50 to 200m depth) could be influenced by contrasting geological settings. Uni- and multivariate as well as multiple regression analyses were used to test for differences in alpha and beta biodiversity in roche du large ecosystems and canyons, which are the most common geological features along continental margins worldwide. Results revealed that, in contrast to what was previously reported in scientific literature, red coral populations are not structured along a bathymetric gradient but other intraspecific, interspecific and environmental interactions may shape the population structure. Investigations on communities emphasized a high variability at mesoscale (10s of km) that overcomes the macroscale (100s of km). In particular, tested environmental variables explain patterns of observed diversity, that is higher within the same geological feature rather than among contrasting geological settings. Finally, a ROV survey conducted over a roche du large ecosystem off Carloforte (SW Sardinia) revealed the presence of a pristine millennial black coral forest of Leiopathes glaberrima. The investigated site is a millennial deep coral oases as well as a nursery area for the spotted catshark Schyliorhinus canicula, which deserves special protection. Our results enhance knowledge on coral forests dwelling in the mesophotic environment and provide useful insights for recasting conservation strategies, both at species and community level.
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Barbaro, Simone. "Analisi di tecniche di preprocessing per la classificazione di coralli con deep learing." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/18481/.

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Si vuole comprendere quanto le operazione di estrazione di feature basate su colore e tessitura possano essere utili nella classificazione dei coralli. Quindi vengono esplorati gli effetti che le operazioni di preprocessing di cambiamento dello spazio di colore in HSV e CIELAB, local binary pattern, Wavelet e tiling abbiano sui modelli ResNet e DenseNet addestrati nei dataset EILAT e RSMAS. I risultati vengono riportati e confrontati attraverso diverse misure, alcune conclusioni vengono tratte da questi risultati e si espande su possibili ricerche future.
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Mazzocchi, Marika. "Biodiversità malacologica degli ecosistemi a coralli bianchi del Mediterraneo, dall'ultimo glaciale ad oggi." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/8191/.

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Nello studio di questa tesi è stata descritta una ricerca condotta allo scopo di fornire un contributo alla conoscenza della biodiversità analizzando la componente macrofaunistica subfossile e recente del Phylum Mollusca del Canale di Sicilia e del Golfo di Cadice. Tali organismi sono già da tempo noti in questi ambienti poiché associati a biocostruzioni a coralli bianchi presenti lungo i margini continentali atlantici e mediterranei i cui costituenti principali sono gli sclerattiniari coloniali Lophelia pertusa e Madrepora oculata. Tuttavia ben poco si conosce sull’ecologia di queste specie che si ritrovano spesso influenzate da scambi idrologici e biologici attraverso lo Stretto di Gibilterra. Nel corso di questo studio sono state analizzate 7 carote sedimentarie marine campionate durante diverse campagne oceanografiche: 6 carotaggi atlantici prelevati durante la campagna oceanografica Meteor nel Golfo di Cadice e 1 carota campionata nel Canale di Sicilia durante la campagna oceanografica MARCOS guidata dall’ISMAR-CNR di Bologna, sulla quale si concentra l’attenzione di questo lavoro. I dati raccolti sono stati analizzati in maniere quantitativa, per questo è stato utilizzato il software per analisi statistiche “Past3” e sono stati combinati con l’analisi qualitativa dei campioni in modo da ottenere il maggior numero di informazioni. Tra le analisi statistiche sono state effettuate il calcolo di tutti gli indici di dominanza, diversità, di equiripartizione e ricchezza specifica (Simpson, Shannon, Evenness e Margalef) e l’analisi multivariata NMDS (Non-metric Multi-Dimensional Scaling). Infine è stata effettuata l’analisi delle associazioni trofiche distribuite in una carota. Il risultato ha evidenziato un’elevata biodiversità per campioni prelevati in profondità e il ritrovamento di organismi appartenenti all’ultimo glaciale.
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DA, ROS ZAIRA. "Recovery and restoration of marine endangered habitats." Doctoral thesis, Università Politecnica delle Marche, 2020. http://hdl.handle.net/11566/274535.

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La biodiversità marina regola il funzionamento ecosistemico, responsabile della produzione di beni e servizi importanti per la biosfera ed il benessere umano. I cambiamenti climatici globali e le attività umane stanno alterando la biodiversità degli oceani ed il funzionamento ecosistemico. Al momento, partendo dalla consapevolezza che le sole misure di conservazione non sono sufficienti a invertire la degradazione degli ecosistemi, è riconosciuto che il restauro ambientale è una azione di cruciale importanza per far fronte a questa minaccia. Tuttavia, è necessaria una maggiore conoscenza scientifica per rendere efficaci azioni di restauro, specialmente negli ambienti profondi che sono largamente sconosciuti. Tra le maggiori attività che avranno impatti sugli habitat marini vi sono lo sfruttamento di risorse minerarie e la pesca a strascico, le quali, risospendendo particelle polimetalliche e sedimenti, avranno effetti principalmente sulle specie bentoniche. In questa tesi, il Corallium rubrum, specie strutturante di elevata valenza ecologica, è stato esposto a questi due tipi di particolato. Dopo la rimozione della fonte di impatto, questo organismo è in grado di recuperare parzialmente tassi di alimentazione e la sua integrità tissutale. Questo esperimento fornisce utili informazioni non solo per meglio comprendere gli effetti di tali attività su organismi bentonici, ma anche per definire possibili misure di mitigazione attraverso una modulazione appropriata della loro intensità e durata. Allevare in acquario specie di corallo minacciate potrà essere utile per futuri progetti di restauro che prevedono il trapianto di colonie donatrici. Una dieta appropriata da somministrare durante l’allevamento può avere effetti benefici sulla loro crescita ed il loro successo riproduttivo. In questa tesi, è stata studiata la selezione di cibo da parte di alcuni coralli profondi (Desmophyllum pertusum, Madrepora oculata and Dendrophyllia cornigera), i quali hanno mostrato una preferenza per il crostaceo Mysis relicta. I risultati ottenuti dalle analisi condotte sugli isotopi stabili hanno inoltre fornito nuove informazioni sulle nicchie trofiche occupate nel Mar Mediterraneo da queste specie. Una volta ampliate le conoscenze sugli habitat e le specie da restaurare, è necessario valutare l’efficacia delle procedure di rispristino che si vogliono applicare. In questa tesi, sono stati studiati gli effetti di due esperimenti pilota di trapianto della fanerogama Cymodocea nodosa e della gorgonia Eunicella singularis su attributi di funzionamento ecosistemico. I risultati ottenuti indicano che il trapianto di tali organismi, se opportunamente pianificato, non solo garantisce la loro sopravvivenza, ma può anche avere effetti positivi su processi ecosistemici chiave. Tuttavia, sono necessari ulteriori studi per valutare la possibile estensione di queste azioni per affrontare l'attuale scala spaziale di perdita di specie/habitat. Questo lavoro fornisce nuovi elementi per la comprensione dei potenziali benefici ecologici derivanti dal restauro ambientale e delle sue ricadute per la conservazione del capitale naturale.
Marine biodiversity regulates ecosystem functions, which are responsible for the production of goods and services for the biosphere and human well-being. Global changes and human activities are altering ocean biodiversity and ecosystem functioning. At present, stemming from the awareness that conservation and management are often not enough to halt and revert the degradation of threatened ecosystems, it has been recognized that active restoration is crucial to cope with this issue. More knowledge is needed to make restoration actions effective, especially for the largely unknown deep ocean. Two of the main activities that will alter marine habitats are ore exploitation and bottom trawling that, resuspending polymetallic and sediment particles, will affect benthic species. In this thesis, the habitat-forming species Corallium rubrum was exposed to these types of particles. After the removal of the disturbance, its feeding rates and tissue integrity partially recovered. This experiment provides new insights on the consequences of these activities as well as on potential mitigation strategies by properly modulating their intensity and duration. Rearing endangered corals in aquaria can be useful for future projects that aim to restore degraded reefs by transplanting healthy colonies. An appropriate diet may positively impinge on their growth or reproduction success. In this perspective, I studied the food selection of cold-water corals (Desmophyllum pertusum, Madrepora oculata and Dendrophyllia cornigera) was studied and these species showed a preference for the crustacean Mysis relicta. Stable isotope analyses provided also novel information on the trophic niches occupied by these coral species in the Mediterranean Sea. After expanding the knowledge on the habitat or the species to be restored, it is necessary to evaluate the effectiveness of the restoration actions that it might be applied. In this thesis, the effects of two pilot transplantation experiments of the seagrass Cymodocea nodosa and the gorgonian Eunicella singularis on ecosystem functioning of surrounding sediments have been studied. The results showed that transplantation can be effective and that it can have also positive effects on key-ecological processes. However, further studies are needed to assess the potential of scaling-up these actions addressing the present scale of species/habitat loss. This work provides new elements for a better understanding of the potential ecological benefits that can contribute to the conservation of the natural capital.
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Lazzari, Valentina. "Studio dell'effetto dell'acidificazione del mare sulla riproduzione del corallo Astroides calycularis (Scleractinia, Dendrophylliidae) lungo un gradiente naturale di CO2." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amslaurea.unibo.it/6676/.

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E’ previsto che l’emissione in atmosfera di anidride carbonica (CO2) da parte dell’uomo e la conseguente acidificazione delle acque dei mari provocherà effetti negativi di vasta portata sui processi biologici di diversi ecosistemi marini. L’acidificazione del mare può provocare effetti negativi su tutti gli stadi del ciclo vitale degli organismi marini, influenzandone la fisiologia, morfologia, comportamento ed alcune fasi della riproduzione e del reclutamento. Esistono poche informazioni riguardo gli effetti dell’acidificazione sulla riproduzione sessuale dei coralli. Questo studio ha lo scopo di quantificare la capacità riproduttiva di Astroides calycularis (scleractinia coloniale mediterranea azooxantellata) in colonie trapiantate lungo un gradiente naturale di pH, generato dalle emissioni di CO2 del cratere vulcanico sottomarino di Panarea (Isole Eolie). Le colonie sono state trapiantate in 4 siti, dal centro del cratere, dove si riscontra la condizione più acida (pH 7.40), alla periferia, caratterizzata da condizioni di pH normali (pH 8.07). La popolazione di A. calycularis di Panarea ha mostrato una sessualità mista a livello coloniale (polipi gonocorici in colonie ermafrodite), in contrapposizione alla condizione gonocorica riscontrata nella stessa specie studiata a Palinuro e a Punta de la Mona (Spagna). I risultati preliminari sembrerebbero mostrare un effetto negativo dell’acidificazione sullo sviluppo gonadico femminile della specie. L’ipotesi è che esso sia dovuto ad una riallocazione delle energie sui processi di calcificazione a danno dell’ovogenesi. La spermatogenesi risentirebbe meno degli effetti negativi dell’acidificazione nelle fasi di sviluppo interne all’ individuo, in quanto meno dispendiose da un punto di vista energetico rispetto alle fasi di ovogenesi. Gli spermatozoi potrebbero invece essere influenzati negativamente dall’ ambiente più acido una volta entrati in contatto con esso, con conseguenze sulla riuscita della fecondazione. Questo studio necessita di ulteriori dati e verrà completato con le analisi istologiche in corso.
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GUARNERI, MASSIMILIANO. "Sviluppo di un sistema hardware/software per lo studio di immagini acquisite in ambiente sommerso controllato mediante l’addestramento di reti neurali a convoluzione." Doctoral thesis, Università Politecnica delle Marche, 2021. http://hdl.handle.net/11566/290236.

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Negli ultimi anni l’applicazione degli algoritmi di Intelligenza Artificiale è cresciuta drasticamente in diversi settori e aspetti della nostra vita. Uno dei maggiori settori di successo è il trattamento delle immagini, non solo in termini di classificazione, ma anche in termini di elaborazione e miglioramento dei dati: uno degli esempi più diffusi è il software per telecamere mobili, che utilizza algoritmi basati su reti neurali per ottenere immagini di alta qualità da obiettivi con potere risolutivo ridotto rispetto a quelli ottici professionali. Il presente lavoro si propone di utilizzare reti neurali convoluzionali non supervisionate per l’elaborazione di immagini subacquee, in modo da cercare di ottenere immagini di qualità dell’aria e ridurre tutti gli effetti causati dall’interazione tra la luce e le particelle d’acqua e particolato disciolto. Al giorno d’oggi vengono presentati diversi lavori per la correzione degli effetti di basso contrasto e sfocatura, ma la maggior parte di essi genera immagini sintetiche ottenute applicando algoritmi complementari utilizzati per la correzione degli effetti dovuti all’ acqua. Il presente lavoro mira a creare un vero e proprio dataset composto da immagini aria/acqua mediante l’uso di un setup sperimentale ad-hoc per l’addestramento di una rete GAN (Generative Adversarial Network) non supervisionato.
In the last years the application of Artificial Intelligence algorithms has grown drastically in different sectors and aspects of our lives. One of the major successful sectors is the treatment of images, not only in terms of classification, but also in terms of processing and data improvements: one of the most diffuse examples are the mobile camera software, which uses neural-networks-based algorithms for obtaining high quality pictures from lenses with a reduced resolving power, if compared with professional optical ones. The present work aims to use unsupervised Convolutional Neural Networks for underwater images processing, so to try to obtain air-quality images and reduce all the effects caused by the interaction between light and water particles. Nowadays several works are presented for the correction of low contrast and blurriness effects, but most of them generate synthetic images obtained by applying complementary algorithms used for water effects correction. The present work aims to create a real dataset composed by air/water images by the use of an ad-hoc experimental setup for training an unsupervised Generative Adversarial Network (GAN). Because of their nature to be generative models of data, GANs can learn to estimate the underlying probability distribution of the data and the unsupervised GAN can make it without a one-to-one mapping.
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Santora, Karen A. "Abundance and diversity of culturable bacteria from healthy and suspect white plague type II-infected corals in the Flower Garden Banks National Marine Sanctuary." Fairfax, VA : George Mason University, 2008. http://hdl.handle.net/1920/3074.

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Thesis (M.S.)--George Mason University, 2008.
Vita: p. 103. Thesis director: Robert B. Jonas. Submitted in partial fulfillment of the requirements for the degree of Master of Science in Environmental Science and Policy. Title from PDF t.p. (viewed July 3, 2008). Includes bibliographical references (p. 96-102). Also issued in print.
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Robison, Jennifer D. "The photophysiology of symbiotic dinoflagellates (Symbiodinium) under varying light and thermal conditions and the implications for coral bleaching." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file 8.14 Mb., 97 p, 2006. http://proquest.umi.com/pqdlink?did=1163244091&Fmt=7&clientId=8331&RQT=309&VName=PQD.

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Books on the topic "Coralli"

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Intorre, Sergio. Coralli trapanesi nella collezione March. Palermo: Osservatorio per le arti decorative in Italia "Maria Accascina", 2017.

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Vannina, Olivesi, ed. Giovanni Coralli: L'autore di Giselle. Canterano (RM): Aracne editrice, 2018.

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Rudas, Nereide. L' isola dei coralli: Itinerari dell'identità. Roma: Carocci, 2004.

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L' isola dei coralli: Itinerari dell'identità. Roma: NIS, 1997.

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Rudas, Nereide. L' isola dei coralli: Itinerari dell'identità. 2nd ed. Roma: Carocci, 2004.

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Mojetta, Angelo. Pesci e coralli del Mar Rosso. Milano: Mondadori, 1996.

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Aldo, Sparti, Fondazione Puglisi Cosentino, and Museo regionale Pepoli, eds. I grandi capolavori del corallo: I coralli di Trapani del XVII e XVIII secolo. Cinisello Balsamo, Milano: Silvana editoriale, 2013.

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Ascione, Caterina. La Real Fabbrica de' coralli della Torre del Greco. Napoli: Enzo Albano, 2000.

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Scorpioni, vipere e coralli alla corte degli Este: Contra pestem. Roma: Aracne editrice S.r.l., 2014.

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Vitale, Salvo. Nel cuore dei coralli: Peppino Impastato, una vita contro la mafia. Soveria Mannelli, Catanzaro: Rubbettino, 1995.

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Book chapters on the topic "Coralli"

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Wendt, Jobst. "Corals and Coralline Sponges." In Skeletal Biomineralization: Patterns, Processes and Evolutionary Trends, 45–66. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4899-5740-5_5.

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Wendt, Jobst. "Corals and Coralline Sponges." In Skeletal Biomineralization: Patterns, Processes and Evolutionary Trends, 45–66. Washington, D. C.: American Geophysical Union, 2013. http://dx.doi.org/10.1029/sc005p0045.

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Traylor-Knowles, Nikki, and Madison Emery. "Analysis of Spatial Gene Expression at the Cellular Level in Stony Corals." In Methods in Molecular Biology, 359–71. New York, NY: Springer US, 2022. http://dx.doi.org/10.1007/978-1-0716-2172-1_19.

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AbstractScleractinians, or stony corals, are colonial animals that possess a high regenerative capacity and a highly diverse innate immune system. As such they present the opportunity to investigate the interconnection between regeneration and immunity in a colonial animal. Understanding the relationship between regeneration and immunity in stony corals is of further interest as it has major implications for coral reef health. One method for understanding the role of innate immunity in scleractinian regeneration is in situ hybridization using RNA probes. Here we describe a protocol for in situ hybridization in adult stony corals using a digoxigenin (DIG)-labeled RNA antisense probe which can be utilized to investigate the spatial expression of immune factors during regeneration.
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Wendt, Jobst. "Corals and Coralline Sponges Plates 162–169." In Skeletal Biomineralization: Patterns, Processes and Evolutionary Trends, 65–67. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4899-5391-9_7.

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Narchi, Nemer E., and Lisa L. Price. "Introduction." In Ethnobiology of Corals and Coral Reefs, 1–14. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-23763-3_1.

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Aswani, Shankar, and Simon Albert. "Change in Roviana Lagoon Coral Reef Ethnobiology." In Ethnobiology of Corals and Coral Reefs, 157–75. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-23763-3_10.

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Sánchez-Rodríguez, Alexandra, Octavio Aburto-Oropeza, Brad Erisman, Victoria M. Jiménez-Esquivel, and Gustavo Hinojosa-Arango. "Rocky Reefs: Preserving Biodiversity for the Benefit of the Communities in the Aquarium of the World." In Ethnobiology of Corals and Coral Reefs, 177–208. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-23763-3_11.

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Cruz-Garcia, Gisella S., and Paul J. E. Peters. "Conservation of Corals in the Colombian Caribbean." In Ethnobiology of Corals and Coral Reefs, 209–34. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-23763-3_12.

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Milner, Richard. "Seeing Corals with Darwin’s “Eye of Reason”: Discovering an Image of a Tropical Atoll in the English Countryside." In Ethnobiology of Corals and Coral Reefs, 15–25. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-23763-3_2.

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Jones, Graham B. "The Reef Sulphur Cycle: Influence on Climate and Ecosystem Services." In Ethnobiology of Corals and Coral Reefs, 27–57. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-23763-3_3.

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Conference papers on the topic "Coralli"

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Range, Pedro, Bruno Giraldes, Jassim Al-Khayat, Manuel M. Romeo, Nissy Chacko, Mark Chatting, Aisha Alashwal, et al. "Coral Research and Nursery Farm Project." In Qatar University Annual Research Forum & Exhibition. Qatar University Press, 2021. http://dx.doi.org/10.29117/quarfe.2021.0040.

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In the framework of the Coral Management Plan for the North Field Expansion Project (NFE) and North Field Production Sustainability Project (NFPS), Qatargas has partnered with the Environmental Science Center (ESC) to develop the first land-based coral nursery in Qatar. This nursery plan includes the extraction of 1000 corals’ colonies from the NFPS and NFE pipeline corridors, north of Ras Laffan, and hence their transportation to the nursery facility, rehabilitation under controlled husbandry conditions, fragmentation, out-plantation to carefully selected recipient sites and long-term monitoring (up to 48 months). The first two batches of 200 corals were extracted in March and outplanted in April 2021. Results of the first two monitoring events, after 44 and 66 days, were quite encouraging for the seven coral genera tested. Attachment success was very high, with 92% to 97% of the outplanted fragments being detected during monitoring. No bleaching, disease or mortality was recorded so far. The coral propagation methods used in this project (i.e., fragmentation, husbandry and outplanting), although widely used, have been tested with a restricted number of branching coral species and usually in in-situ nurseries. Our project is among the first to apply this type of approach (land-based nursery) to reef restoration in the Arabian Gulf.
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Sutthacheep, Makamas, Makamas Sutthacheep, Thamasak Yeemin, Thamasak Yeemin, Sittiporn Pengsakun, Sittiporn Pengsakun, Kanwara Sangmanee, Kanwara Sangmanee, Juthamart Putthayakool, and Juthamart Putthayakool. "MONITORING CORAL RECOVERY AT NEARSHORE CORAL REEFS IN PHANGNGA PROVINCE, THE ANDAMAN SEA FOLLOWING THE 2010 CORAL BLEACHING EVENT." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.31519/conferencearticle_5b1b936dde9b43.46989412.

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Mass bleaching and subsequent mortality of scleractinian corals in response to elevated seawater temperatures has been considered as one of the most impacts of global climate change. Three extensive coral bleaching events in the Andaman Sea were reported, in the years 1991, 1995 and 2010. Studies on survival of coral colonies, coral recruitment and community structure of coral reef associated macrofauna would predict the trends for coral recovery from the impacts of coral bleaching events. The present study aimed to examine the status of coral communities, density of coral recruits and coral reef associated macrofauna at nearshore coral reefs in Phangnga Province, the Andaman Sea following the 2010 coral bleaching event. The dead coral cover was high (>50%) while the live coral cover was in the range of 13-21%. There was high diversity of coral recruits on natural substrates. The average densities of macrobenthic fauna varied from 1.9 to 2.6 individuals.m-2, with significant differences among study sites. The dominant macrobenthic species were a soft coral (Lobophytum sp.), a sea star (Linckia laevigata) and a sea urchin (Echinostrephus molaris). Coral recovery at these coral reefs would be possible but local anthropogenic stressors must be overwhelmingly reduced in order to enhance coral reef resilience. The long-term monitoring programs in the Andaman Sea are required for decision makers to support their adaptive management approaches.
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Sutthacheep, Makamas, Makamas Sutthacheep, Thamasak Yeemin, Thamasak Yeemin, Sittiporn Pengsakun, Sittiporn Pengsakun, Kanwara Sangmanee, Kanwara Sangmanee, Juthamart Putthayakool, and Juthamart Putthayakool. "MONITORING CORAL RECOVERY AT NEARSHORE CORAL REEFS IN PHANGNGA PROVINCE, THE ANDAMAN SEA FOLLOWING THE 2010 CORAL BLEACHING EVENT." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.21610/conferencearticle_58b4315bb3db6.

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Mass bleaching and subsequent mortality of scleractinian corals in response to elevated seawater temperatures has been considered as one of the most impacts of global climate change. Three extensive coral bleaching events in the Andaman Sea were reported, in the years 1991, 1995 and 2010. Studies on survival of coral colonies, coral recruitment and community structure of coral reef associated macrofauna would predict the trends for coral recovery from the impacts of coral bleaching events. The present study aimed to examine the status of coral communities, density of coral recruits and coral reef associated macrofauna at nearshore coral reefs in Phangnga Province, the Andaman Sea following the 2010 coral bleaching event. The dead coral cover was high (>50%) while the live coral cover was in the range of 13-21%. There was high diversity of coral recruits on natural substrates. The average densities of macrobenthic fauna varied from 1.9 to 2.6 individuals.m-2, with significant differences among study sites. The dominant macrobenthic species were a soft coral (Lobophytum sp.), a sea star (Linckia laevigata) and a sea urchin (Echinostrephus molaris). Coral recovery at these coral reefs would be possible but local anthropogenic stressors must be overwhelmingly reduced in order to enhance coral reef resilience. The long-term monitoring programs in the Andaman Sea are required for decision makers to support their adaptive management approaches.
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Weiss, Anna M., and Rowan Martindale. "CRUSTOSE CORALLINE ALGAE INCREASE FRAMEWORK AND DIVERSITY ON ANCIENT CORAL REEFS." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-281530.

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Elobaid, Elnaim, Bruno Welter Giraldes, Hamad Al-Kuwari, Jassim Al-Khayat, Fadhil Sadooni, and Ekhlas Elbary. "Towards Sustainable Management of Coastal and Offshore Islands in Arabian Gulf Typology: Sensitivity Analysis, Ecological Risk Assessment of Halul and Al-Alyia Islands." In Qatar University Annual Research Forum & Exhibition. Qatar University Press, 2021. http://dx.doi.org/10.29117/quarfe.2021.0035.

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The great majority of marine ecosystems in Qatar are in fast decline and nearing collapse, where most ecosystem has lost the biological and economic functionality. Aiming to support the decision makers in the management and restoration strategies for recovering the biological and economic functionality of the ecosystems/natural resources of Qatar, we conducted 1) a typology mapping of the main components of the ecosystem of two islands, 2) a sensitivity and vulnerability assessment according to the known guidelines and standards. Highlighting the potential ecological risk and required recommendations for sustainable management plans, within the frame of Qatar National Vision 2030 (QNV 2030). The Islands present different anthropogenic pressure. As expected, Al Alyia the coastal Island is under real risk, with critical areas of sensibility but still presenting a potential for recovering its economy and ecological functionality, highlighting the collapsed stage of the very sensitive coral reefs, the vulnerability of oyster beds and seagrass and the functionality of the mangrove (expanding) and Sabha with massive birds nesting. The offshore Island Halul presented in the typology mapping the coral reefs as the main ecosystem but with the presence of seagrass, algae bed, sandy beach, and Sabha. The coral reef still presents a certain functionality, with corals covering several hard substrates, however with high sensitivity and high vulnerability, especially the coral in the shallow areas with scattered colonies, and the vulnerable nesting of marine turtles on beaches. As the management, we recommend increasing the restoration effort of targeted ecosystems, mainly involving coral reefs for increasing the marine biodiversity in general and restoring the oyster beds for recovering the filtration service. Strategies must be made for recovering the ecosystems’ functionality and restore the productivity of the Qatari fishing stock. We recommend applying this mapping method and sensitivity classification for all marine areas around Qatar for supporting the management plans.
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Nurdin, Nurjannah, Teruhisa Komatsu, Hiroya Yamano, Gulam Arafat, Chair Rani, and M. Akbar AS. "Spectral response of the coral rubble, living corals, and dead corals: study case on the Spermonde Archipelago, Indonesia." In SPIE Asia-Pacific Remote Sensing, edited by Robert J. Frouin, Naoto Ebuchi, Delu Pan, and Toshiro Saino. SPIE, 2012. http://dx.doi.org/10.1117/12.999306.

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Morales, Brandi, and Anna Weiss. "CORAL RECOVERY AMONG SLOVENIAN CORALS AROUND THE PALEOCENE-EOCENE THERMAL MAXIMUM (PETM)." In South-Central Section - 56th Annual Meeting - 2022. Geological Society of America, 2022. http://dx.doi.org/10.1130/abs/2022sc-373890.

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Dimitrijević, Danijela, Nussaibah Raja schoob, and Wolfgang Kiessling. "CORALLITE SIZES AND THEIR LINK TO EXTINCTION RISK OF SCLERACTINIAN CORALS ACROSS THE TRIASSIC-JURASSIC BOUNDARY." In GSA 2020 Connects Online. Geological Society of America, 2020. http://dx.doi.org/10.1130/abs/2020am-357201.

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Mohd Salleh, Nurul Haqimin, Norlinda Mohd Rozar, Noor Apandi Osnin, Mohd Safuan Che Din, Nurul Asmidah Mohd Azli, and Sharifah Noor Ridzwan Syed Muhammad. "DIVE SITE ATTRACTIVENESS INDEX (DSAI) AS AN INNOVATION IN SCUBA DIVING TOURISM: A CASE OF PERHENTIAN ISLANDS." In GLOBAL TOURISM CONFERENCE 2021. PENERBIT UMT, 2021. http://dx.doi.org/10.46754/gtc.2021.11.004.

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Dive sites which are home to various forms of marine life, unique structures and corals have become the main attraction for scuba divers. Divers normally choose the most attractive diving sites by visiting dive centers or getting referrals from other divers. However, there is problem in conventional subjective judgments where no standard measures have been considered. As a result, the judgments on dive site attractiveness may satisfy some divers but not others. To avoid these uncertainties, this research innovatively developed the world’s first index model for the attractiveness a dive site. Eight factors have been carefully selected, namely visibility, current stability, uniqueness of underwater scenery, coral health, the immensity of the coral reef, diversity and density of marine life. Then, these identified factors were ranked and assessed by using an Analytical Hierarchy Process (AHP) and Evidential Reasoning (ER). Finally, all dive sites are indexed so it can be compared with others for better decision-making. To test the applicability of this proposed model, 22 dive sites in Perhentian Island were successfully assessed, indexed, and mapped. Terumbu Tiga (T3), Sail Rock and Tokong Laut were indexed as the top three dive sites in Perhentian Islands. The results also showed that the most profound factor that determined the attractiveness of a dive site was the diversity of its marine life followed by the diversity of its coral species, and the uniqueness of its underwater scenery. Practically, this model can be applied and widely used for indexing all dive sites in the world based on decision-makers’ preferences. It is expected that this index model will benefit divers, dive centers, marine parks, and related agencies by providing a new information that can be used in marine tourism.
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Kim, Tanyoung, Hwajung Hong, and Brian Magerko. "Coralog." In the 27th international conference extended abstracts. New York, New York, USA: ACM Press, 2009. http://dx.doi.org/10.1145/1520340.1520657.

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Reports on the topic "Coralli"

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Rinkevich, Baruch, and Cynthia Hunter. Inland mariculture of reef corals amenable for the ornamental trade. United States Department of Agriculture, January 2006. http://dx.doi.org/10.32747/2006.7695880.bard.

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The worldwide market for ornamental saltwater invertebrates supplies the needs of millions of aquarium hobbyists, public exhibitions (i.e., zoos) universities and research institutions. With respect to reef building corals, it is estimated that more than half a million coral colonies/year from a total 93 genera, were exported globally during the period of 1985-1997. International value of retail sale of live coral trade alone is estimated as $78 million in 1997 (not including the illegally, widely smuggled material). The continuous, large-scale collection of marine organisms is responsible, in many places, for the destruction of coral reefs. The expected expansion of the trade further threatens these fragile habitats. While no true captive-bred corals are commercially available, our long-term goal is to develop ex situ inland farming of coral colonies that will circumvent the need for in situ collections and will provide domesticated specimens for the trade and for research. We simultaneously studied two model branching coral species, Stylophora pistillata (Pocilloporidae; in Israel) and Porites (Poritidae; in the US). The proposal included three specific aims: (a) To develop protocols for nubbins (small fragments, down to the size of a single polyp) usage in coral farming;(b) To address the significance of colony pattern formation to the coral trade; and (c) To develop the protocols of using nubbins in physiological and ecotoxicological assays (using oil dispersants, the expression of the stress protein HSP-70, household detergents, etc.). Ten scientific publications (published manuscripts, accepted for publications, submitted to scientific journals, in preparation), revealing results that were related to all three specific aims, originated from this BARD proposal. As a result of the work supported by the BARD, we have now, in hand, original and improved protocols for coral maintenance ex situ, proven expertise on manipulating coral colonies’ pattern formation and biological knowledge on island mariculture of reef corals (from Hawaii and from the Red Sea) amenable for the ornamental trade (for public and private aquaria use, for experimentation). At least one Israeli company (Red Sea Corals, Ltd., KibbutzSaar) is using our methodologies for further developing this new mariculture sector. We are now in the process of introducing the rationale and methodologies to Hawaiian private entities to expand dissemination of the research outcomes.
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Sarah Gignoux-Wolfsohn, Sarah Gignoux-Wolfsohn. What is killing Caribbean corals? Investigating a devastating coral disease. Experiment, February 2014. http://dx.doi.org/10.18258/2083.

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Rogers, Caroline. A synthesis of coral reef research at Buck Island Reef National Monument and Salt River Bay National Historical Park and Ecological Preserve, St. Croix, U.S. Virgin Islands: 1961 to 2022. National Park Service, September 2022. http://dx.doi.org/10.36967/2294235.

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This synthesis focuses on the history of research on coral reefs within two U.S. National Park Service units in St. Croix, U.S. Virgin Islands: Buck Island Reef National Monument (from 1961 to 2022) and Salt River Bay National Historical Park and Ecological Preserve (from 1980 to 2022). Buck Island Reef National Monument (BUIS) is off the north shore of the island of St. Croix, in the U.S. Virgin Islands. Established in 1961 and expanded in 2001, it is under the jurisdiction of the National Park Service (NPS). Long-term monitoring programs maintained by the NPS and jointly by the University of the Virgin Islands (UVI) and the Virgin Islands Department of Planning and Natural Resources (VIDPNR) provide data on trends in living coral cover and specific coral species from 2000 and 2001, respectively. Disease, thermal stress (indicated by coral bleaching), and hurricanes reduced total coral cover periodically, but cover remained relatively stable from 2007 through the end of 2020. Salt River Bay National Historical Park and Ecological Preserve (SARI) is a national park on the north shore of the island of St. Croix, in the U.S. Virgin Islands. Established in 1992, it is co-managed by the NPS and the Government of the Virgin Islands. Long-term monitoring programs maintained by the NPS and by the UVI with the VIDPNR provide data on trends in living coral cover and individual coral species from 2011 and 2001, respectively. In spite of thermal stress (indicated by coral bleaching), disease, and hurricanes, total coral cover remained relatively stable through the end of 2020. This document also includes results from extensive investigations by the National Oceanic and Atmospheric Administration (NOAA) and from many individual projects including those based out of the underwater saturation habitats Hydrolab and Aquarius from 1977 to 1989, as well as studies from researchers at Fairleigh Dickinson University’s West Indies Laboratory. While not possible to review all of these in detail, this report highlights information considered useful to managers, and scientists planning future research. In 2021, a particularly virulent disease called stony coral tissue loss disease (SCTLD), first noted in 2014 in Florida, and then in 2019 in the U.S. Virgin Islands, started killing corals in BUIS and SARI with the different species showing a gradient of susceptibility. An exact cause or link between this disease and human actions has not been discovered to date. The losses associated with this disease have now exceeded those from any other stressors in these national parks.
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Frantz, Rachel. Coral Skeleton. Ames: Iowa State University, Digital Repository, 2014. http://dx.doi.org/10.31274/itaa_proceedings-180814-1030.

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Maxwell Helmberger, Maxwell Helmberger. Do deepwater corals eat microplastics? Experiment, April 2022. http://dx.doi.org/10.18258/26259.

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Sarlo, Malena, undefined, and undefined. Exec. Summary- Coral Reefs & Coral Communities Western Pacific Coast Panama. The Nature Conservancy, October 2008. http://dx.doi.org/10.3411/col.08031508.

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Thomas DeCarlo, Thomas DeCarlo. Can corals acclimate to higher temperatures? Experiment, October 2021. http://dx.doi.org/10.18258/22185.

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Woodley, Cheryl, and Craig Downs. Ecological Risk Assessment of Munitions Compounds on Coral and Coral Reef Health. Fort Belvoir, VA: Defense Technical Information Center, January 2014. http://dx.doi.org/10.21236/ada610114.

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Yentsch, Charles S., and David A. Phinney. CoBOP Coral Reefs: Optical Closure of a Coral Reef Submarine Light Field. Fort Belvoir, VA: Defense Technical Information Center, August 2001. http://dx.doi.org/10.21236/ada627656.

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Yentsch, Charles S., and David A. Phinney. CoBOP Coral Reefs: Optical Closure of a Coral Reef Submarine Light Field. Fort Belvoir, VA: Defense Technical Information Center, September 2002. http://dx.doi.org/10.21236/ada626467.

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