keyword
MENU ▼
Read by QxMD icon Read
search

Coral reef

keyword
https://www.readbyqxmd.com/read/28319134/genotype-and-local-environment-dynamically-influence-growth-disturbance-response-and-survivorship-in-the-threatened-coral-acropora-cervicornis
#1
Crawford Drury, Derek Manzello, Diego Lirman
The relationship between the coral genotype and the environment is an important area of research in degraded coral reef ecosystems. We used a reciprocal outplanting experiment with 930 corals representing ten genotypes on each of eight reefs to investigate the influence of genotype and the environment on growth and survivorship in the threatened Caribbean staghorn coral, Acropora cervicornis. Coral genotype and site were strong drivers of coral growth and individual genotypes exhibited flexible, non-conserved reaction norms, complemented by ten-fold differences in growth between specific G-E combinations...
2017: PloS One
https://www.readbyqxmd.com/read/28300113/global-warming-and-recurrent-mass-bleaching-of-corals
#2
Terry P Hughes, James T Kerry, Mariana Álvarez-Noriega, Jorge G Álvarez-Romero, Kristen D Anderson, Andrew H Baird, Russell C Babcock, Maria Beger, David R Bellwood, Ray Berkelmans, Tom C Bridge, Ian R Butler, Maria Byrne, Neal E Cantin, Steeve Comeau, Sean R Connolly, Graeme S Cumming, Steven J Dalton, Guillermo Diaz-Pulido, C Mark Eakin, Will F Figueira, James P Gilmour, Hugo B Harrison, Scott F Heron, Andrew S Hoey, Jean-Paul A Hobbs, Mia O Hoogenboom, Emma V Kennedy, Chao-Yang Kuo, Janice M Lough, Ryan J Lowe, Gang Liu, Malcolm T McCulloch, Hamish A Malcolm, Michael J McWilliam, John M Pandolfi, Rachel J Pears, Morgan S Pratchett, Verena Schoepf, Tristan Simpson, William J Skirving, Brigitte Sommer, Gergely Torda, David R Wachenfeld, Bette L Willis, Shaun K Wilson
During 2015-2016, record temperatures triggered a pan-tropical episode of coral bleaching, the third global-scale event since mass bleaching was first documented in the 1980s. Here we examine how and why the severity of recurrent major bleaching events has varied at multiple scales, using aerial and underwater surveys of Australian reefs combined with satellite-derived sea surface temperatures. The distinctive geographic footprints of recurrent bleaching on the Great Barrier Reef in 1998, 2002 and 2016 were determined by the spatial pattern of sea temperatures in each year...
March 15, 2017: Nature
https://www.readbyqxmd.com/read/28293249/transcriptomic-analysis-of-thermally-stressed-symbiodinium-reveals-differential-expression-of-stress-and-metabolism-genes
#3
Sarah L Gierz, Sylvain Forêt, William Leggat
Endosymbioses between dinoflagellate algae (Symbiodinium sp.) and scleractinian coral species form the foundation of coral reef ecosystems. The coral symbiosis is highly susceptible to elevated temperatures, resulting in coral bleaching, where the algal symbiont is released from host cells. This experiment aimed to determine the transcriptional changes in cultured Symbiodinium, to better understand the response of cellular mechanisms under future temperature conditions. Cultures were exposed to elevated temperatures (average 31°C) or control conditions (24...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28286360/biogeography-and-molecular-diversity-of-coral-symbionts-in-the-genus-symbiodinium-around-the-arabian-peninsula
#4
Maren Ziegler, Chatchanit Arif, John A Burt, Sergey Dobretsov, Cornelia Roder, Todd C LaJeunesse, Christian R Voolstra
AIM: Coral reefs rely on the symbiosis between scleractinian corals and intracellular, photosynthetic dinoflagellates of the genus Symbiodinium making the assessment of symbiont diversity critical to our understanding of ecological resilience of these ecosystems. This study characterizes Symbiodinium diversity around the Arabian Peninsula, which contains some of the most thermally diverse and understudied reefs on Earth. LOCATION: Shallow water coral reefs throughout the Red Sea (RS), Sea of Oman (SO), and Persian/Arabian Gulf (PAG)...
March 2017: Journal of Biogeography
https://www.readbyqxmd.com/read/28280012/draft-genome-sequence-of-pseudoalteromonas-sp-strain-pab-2-2-isolated-from-abrolhos-bank-brazil
#5
Bruno S O Silva, Maria S Nobrega, Luciana Leomil, Diogo A Tschoeke, Gizele D Garcia, Graciela Dias, Cristiane C Thompson, Fabiano L Thompson
We present here the draft genome sequence of Pseudoalteromonas sp. strain PAB 2.2, isolated from water of Parcel de Abrolhos coral reef (17°57'32.7″; 38°30'20.3″), on Abrolhos Bank, at a depth of 12 m. The assembly consists of 4,434,635 bp and contains 40 contigs, with a G+C content of 41.60%.
March 9, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28276458/coral-reef-grazer-benthos-dynamics-complicated-by-invasive-algae-in-a-small-marine-reserve
#6
Kostantinos A Stamoulis, Alan M Friedlander, Carl G Meyer, Iria Fernandez-Silva, Robert J Toonen
Blooms of alien invasive marine algae have become common, greatly altering the health and stability of nearshore marine ecosystems. Concurrently, herbivorous fishes have been severely overfished in many locations worldwide, contributing to increases in macroalgal cover. We used a multi-pronged, interdisciplinary approach to test if higher biomass of herbivorous fishes inside a no-take marine reserve makes this area more resistant to invasive algal overgrowth. Over a two year time period, we (1) compared fish biomass and algal cover between two fished and one unfished patch reef in Hawai'i, (2) used acoustic telemetry to determine fidelity of herbivorous fishes to the unfished reef, and (3) used metabarcoding and next-generation sequencing to determine diet composition of herbivorous fishes...
March 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28275985/seasonal-distribution-of-phytoplankton-and-its-association-with-physico-chemical-parameters-in-coastal-waters-of-malvan-west-coast-of-india
#7
Revati Hardikar, C K Haridevi, Mintu Chowdhury, Namrata Shinde, Anirudh Ram, M A Rokade, P S Rakesh
Malvan coast is one of the Marine Protected Area (MPA) of Maharashtra because of its rich coral reef and biodiversity. The study investigated on phytoplankton assemblage and their diversity with respect to physico-chemical parameters covering protected and unprotected area of Malvan coast. Physico-chemical parameters such as salinity, nitrite, nitrate, and ammonia did not display seasonality due to inadequate fresh water influx and allochthonous nutrient input. Positive correlation of phosphate (r = 0.96, p < 0...
April 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28273119/population-structure-of-the-hydrocoral-millepora-platyphylla-in-habitats-experiencing-different-flow-regimes-in-moorea-french-polynesia
#8
Caroline E Dubé, Alexandre Mercière, Mark J A Vermeij, Serge Planes
While the fire coral Millepora platyphylla is an important component of Indo-Pacific reefs, where it thrives in a wide range of environments, the ecological and biological processes driving its distribution and population structure are not well understood. Here, we quantified this species' population structure in five habitats with contrasting hydrodynamic regimes in Moorea, French Polynesia; two in the fore reef: mid and upper slopes, and three in the lagoon: back, fringing and patch reefs. A total of 3651 colonies of fire corals were mapped and measured over 45,000 m2 of surveyed reef...
2017: PloS One
https://www.readbyqxmd.com/read/28272836/mapping-carbon-fate-during-bleaching-in-a-model-cnidarian-symbiosis-the-application-of-13-c-metabolomics
#9
Katie E Hillyer, Daniel A Dias, Adrian Lutz, Ute Roessner, Simon K Davy
Coral bleaching is a major threat to the persistence of coral reefs. Yet we lack detailed knowledge of the metabolic interactions that determine symbiosis function and bleaching-induced change. We mapped autotrophic carbon fate within the free metabolite pools of both partners of a model cnidarian-dinoflagellate symbiosis (Aiptasia-Symbiodinium) during exposure to thermal stress via the stable isotope tracer ((13) C bicarbonate), coupled to GC-MS. Symbiont photodamage and pronounced bleaching coincided with substantial increases in the turnover of non(13) C-labelled pools in the dinoflagellate (lipid and starch store catabolism)...
March 8, 2017: New Phytologist
https://www.readbyqxmd.com/read/28272010/the-use-of-a-sea-salt-based-spray-for-diabetic-foot-ulcers-a-novel-concept
#10
David A Pougatsch, Andrew Rader, Lee C Rogers
Several patients present to wound healing specialists seeking a natural or alternative medical approach to their wounds. The purpose of this prospective, case-cohort study of 10 patients was to evaluate the use of Oceanzyme Wound Care Spray (Ocean Aid, Inc, Boynton Beach, FL) in improving healing in diabetic foot ulcers during a 12-week period. This product contains water purified by reverse osmosis, coral reef sea salt, lysozyme, and sodium benzoate. The primary endpoint was wound closure, and secondary endpoints were infection rate and wound area reduction...
February 2017: Wounds: a Compendium of Clinical Research and Practice
https://www.readbyqxmd.com/read/28261447/caribbean-massive-corals-not-recovering-from-repeated-thermal-stress-events-during-2005-2013
#11
Benjamin Paul Neal, Adi Khen, Tali Treibitz, Oscar Beijbom, Grace O'Connor, Mary Alice Coffroth, Nancy Knowlton, David Kriegman, B Greg Mitchell, David I Kline
Massive coral bleaching events associated with high sea surface temperatures are forecast to become more frequent and severe in the future due to climate change. Monitoring colony recovery from bleaching disturbances over multiyear time frames is important for improving predictions of future coral community changes. However, there are currently few multiyear studies describing long-term outcomes for coral colonies following acute bleaching events. We recorded colony pigmentation and size for bleached and unbleached groups of co-located conspecifics of three major reef-building scleractinian corals (Orbicella franksi, Siderastrea siderea, and Stephanocoenia michelini; n = 198 total) in Bocas del Toro, Panama, during the major 2005 bleaching event and then monitored pigmentation status and changes live tissue colony size for 8 years (2005-2013)...
March 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28257492/naturally-occurring-hybrids-of-coral-reef-butterflyfishes-have-similar-fitness-compared-to-parental-species
#12
Stefano R Montanari, Jean-Paul A Hobbs, Morgan S Pratchett, Line K Bay, Lynne van Herwerden
Hybridisation can produce evolutionary novelty by increasing fitness and adaptive capacity. Heterosis, or hybrid vigour, has been documented in many plant and animal taxa, and is a notable consequence of hybridisation that has been exploited for decades in agriculture and aquaculture. On the contrary, loss of fitness in naturally occurring hybrid taxa has been observed in many cases. This can have negative consequences for the parental species involved (wasted reproductive effort), and has raised concerns for species conservation...
2017: PloS One
https://www.readbyqxmd.com/read/28256065/volcanic-ash-supports-a-diverse-bacterial-community-in-a-marine-mesocosm
#13
V Witt, P M Ayris, D E Damby, C Cimarelli, U Kueppers, D B Dingwell, G Wörheide
Shallow-water coral reef ecosystems, particularly those already impaired by anthropogenic pressures, may be highly sensitive to disturbances from natural catastrophic events, such as volcanic eruptions. Explosive volcanic eruptions expel large quantities of silicate ash particles into the atmosphere, which can disperse across millions of square kilometres and deposit into coral reef ecosystems. Following heavy ash deposition, mass mortality of reef biota is expected, but little is known about the recovery of post-burial reef ecosystems...
March 3, 2017: Geobiology
https://www.readbyqxmd.com/read/28250656/new-cytotoxic-cembranoid-from-indonesian-soft-coral-sarcophyton-sp
#14
Hedi Indra Januar, Neviaty Putri Zamani, Dedi Soedharma, Ekowati Chasanah
CONTEXT: Sarcophyton is a soft coral species that contains various secondary metabolites with cytotoxic activity. The production of cytotoxic compounds in soft corals is suggested as their allelochemical to win space competition. Therefore, if a particular soft coral species dominates a reef area, it may suggest to contain interesting bioactive compounds. AIMS: This research aimed to characterize the cytotoxic compounds in dominant soft coral species (Sarcophyton sp...
January 2017: Pharmacognosy Research
https://www.readbyqxmd.com/read/28250108/the-sphingosine-rheostat-is-involved-in-the-cnidarian-heat-stress-response-but-not-necessarily-in-bleaching
#15
Sheila A Kitchen, Virginia M Weis
Sphingolipids play important roles in mitigating cellular heat and oxidative stress by altering membrane fluidity, receptor clustering and gene expression. Accumulation of signaling sphingolipids that comprise the sphingosine rheostat, pro-apoptotic sphingosine (Sph) and pro-survival sphingosine-1-phosphate (S1P), is key to determining cell fate. Reef-building corals and other symbiotic cnidarians living in shallow tropical waters can experience elevated seawater temperature and high UV irradiance, two stressors that are increasing in frequency and severity with climate change...
February 22, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28249192/occurrence-of-pharmaceuticals-and-personal-care-products-in-effluent-dominated-saudi-arabian-coastal-waters-of-the-red-sea
#16
Aasim M Ali, Helene Thorsen Rønning, Walied Alarif, Roland Kallenborn, Sultan S Al-Lihaibi
The occurrence of selected pharmaceuticals and personal care products (PPCPs) and the pesticide atrazine were investigated in seawater samples collected from stations located at effluent dominated sites in the Saudi Arabian coastal waters of the Red Sea. PPCPs were analysed using solid phase extraction (SPE) followed by high performance liquid chromatography - tandem mass spectrometry (HPLC-MS/MS). A multi component method for the ultra-trace level quantification of 13 target PPCPs in Seawater was developed and validated for the here performed study...
May 2017: Chemosphere
https://www.readbyqxmd.com/read/28247459/shifting-paradigms-in-restoration-of-the-world-s-coral-reefs
#17
Madeleine J H van Oppen, Ruth D Gates, Linda L Blackall, Neal Cantin, Leela J Chakravarti, Wing Y Chan, Craig Cormick, Angela Crean, Katarina Damjanovic, Hannah Epstein, Peter L Harrison, Thomas A Jones, Margaret Miller, Rachel J Pears, Lesa M Peplow, David A Raftos, Britta Schaffelke, Kristen Stewart, Gergely Torda, David Wachenfeld, Andrew R Weeks, Hollie M Putnam
Many ecosystems around the world are rapidly deteriorating due to both local and global pressures, and perhaps none so precipitously as coral reefs. Management of coral reefs through maintenance (e.g., marine-protected areas, catchment management to improve water quality), restoration, as well as global and national governmental agreements to reduce greenhouse gas emissions (e.g., the 2015 Paris Agreement) is critical for the persistence of coral reefs. Despite these initiatives, the health and abundance of corals reefs are rapidly declining and other solutions will soon be required...
March 1, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28246645/deep-reefs-are-not-universal-refuges-reseeding-potential-varies-among-coral-species
#18
Pim Bongaerts, Cynthia Riginos, Ramona Brunner, Norbert Englebert, Struan R Smith, Ove Hoegh-Guldberg
Deep coral reefs (that is, mesophotic coral ecosystems) can act as refuges against major disturbances affecting shallow reefs. It has been proposed that, through the provision of coral propagules, such deep refuges may aid in shallow reef recovery; however, this "reseeding" hypothesis remains largely untested. We conducted a genome-wide assessment of two scleractinian coral species with contrasting reproductive modes, to assess the potential for connectivity between mesophotic (40 m) and shallow (12 m) depths on an isolated reef system in the Western Atlantic (Bermuda)...
February 2017: Science Advances
https://www.readbyqxmd.com/read/28245292/condition-specific-rna-editing-in-the-coral-symbiont-symbiodinium-microadriaticum
#19
Yi Jin Liew, Yong Li, Sebastian Baumgarten, Christian R Voolstra, Manuel Aranda
RNA editing is a rare post-transcriptional event that provides cells with an additional level of gene expression regulation. It has been implicated in various processes including adaptation, viral defence and RNA interference; however, its potential role as a mechanism in acclimatization has just recently been recognised. Here, we show that RNA editing occurs in 1.6% of all nuclear-encoded genes of Symbiodinium microadriaticum, a dinoflagellate symbiont of reef-building corals. All base-substitution edit types were present, and statistically significant motifs were associated with three edit types...
February 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28243525/genetic-diversity-and-differentiation-in-reef-building-millepora-species-as-revealed-by-cross-species-amplification-of-fifteen-novel-microsatellite-loci
#20
Caroline E Dubé, Serge Planes, Yuxiang Zhou, Véronique Berteaux-Lecellier, Emilie Boissin
Quantifying the genetic diversity in natural populations is crucial to address ecological and evolutionary questions. Despite recent advances in whole-genome sequencing, microsatellite markers have remained one of the most powerful tools for a myriad of population genetic approaches. Here, we used the 454 sequencing technique to develop microsatellite loci in the fire coral Millepora platyphylla, an important reef-builder of Indo-Pacific reefs. We tested the cross-species amplification of these loci in five other species of the genus Millepora and analysed its success in correlation with the genetic distances between species using mitochondrial 16S sequences...
2017: PeerJ
keyword
keyword
66106
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"