keyword
MENU ▼
Read by QxMD icon Read
search

Coral caribbean

keyword
https://www.readbyqxmd.com/read/28484634/comparative-behavioural-observations-demonstrate-the-cleaner-shrimp-periclimenes-yucatanicus-engages-in-true-symbiotic-cleaning-interactions
#1
Benjamin M Titus, Clayton Vondriska, Marymegan Daly
Cleaner shrimps are ecologically important members of coral reef communities, but for many species, cleaner status (i.e. dedicated, facultative and mimic), clientele and ecological role remain unverified or described. On Caribbean coral reefs, the spotted 'cleaner' shrimp Periclimenes yucatanicus forms symbioses with sea anemones that may serve as cleaning stations for reef fishes. The status of this species as a cleaner is ambiguous: only a single in situ cleaning interaction has been reported, and in the only test of its efficacy as a cleaner, it did not effectively reduce parasite loads from surgeonfish...
April 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28472031/estimating-the-effect-of-multiple-environmental-stressors-on-coral-bleaching-and-mortality
#2
Paul D Welle, Mitchell J Small, Scott C Doney, Inês L Azevedo
Coral cover has been declining in recent decades due to increased temperatures and environmental stressors. However, the extent to which different stressors contribute both individually and in concert to bleaching and mortality is still very uncertain. We develop and use a novel regression approach, using non-linear parametric models that control for unobserved time invariant effects to estimate the effects on coral bleaching and mortality due to temperature, solar radiation, depth, hurricanes and anthropogenic stressors using historical data from a large bleaching event in 2005 across the Caribbean...
2017: PloS One
https://www.readbyqxmd.com/read/28458657/comparative-metagenomics-of-the-polymicrobial-black-band-disease-of-corals
#3
Julie L Meyer, Valerie J Paul, Laurie J Raymundo, Max Teplitski
Black Band Disease (BBD), the destructive microbial consortium dominated by the cyanobacterium Roseofilum reptotaenium, affects corals worldwide. While the taxonomic composition of BBD consortia has been well-characterized, substantially less is known about its functional repertoire. We sequenced the metagenomes of Caribbean and Pacific black band mats and cultured Roseofilum and obtained five metagenome-assembled genomes (MAGs) of Roseofilum, nine of Proteobacteria, and 12 of Bacteroidetes. Genomic content analysis suggests that Roseofilum is a source of organic carbon and nitrogen, as well as natural products that may influence interactions between microbes...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28419173/sponge-symbioses-between-xestospongia-deweerdtae-and-plakortis-spp-are-not-motivated-by-shared-chemical-defense-against-predators
#4
Micah Jaarsma Marty, Jan Vicente, Benjamin L Oyler, Allen Place, Russell T Hill
The recently described epizoic sponge-sponge symbioses between Xestospongia deweerdtae and two species of Plakortis present an unusual series of sponge interactions. Sponges from the genus Plakortis are fierce allelopathic competitors, rich in cytotoxic secondary metabolites, and yet X. deweerdtae flourishes as an epizoic encrustation on Plakortis deweerdtaephila and Plakortis symbiotica. Our objective in this study was to evaluate the hypothesis that X. deweerdtae grows epizoic to these two species of Plakortis due to a shared chemical defense against predators...
2017: PloS One
https://www.readbyqxmd.com/read/28378059/facilitation-in-caribbean-coral-reefs-high-densities-of-staghorn-coral-foster-greater-coral-condition-and-reef-fish-composition
#5
Brittany E Huntington, Margaret W Miller, Rachel Pausch, Lee Richter
Recovery of the threatened staghorn coral (Acropora cervicornis) is posited to play a key role in Caribbean reef resilience. At four Caribbean locations (including one restored and three extant populations), we quantified characteristics of contemporary staghorn coral across increasing conspecific densities, and investigated a hypothesis of facilitation between staghorn coral and reef fishes. High staghorn densities in the Dry Tortugas exhibited significantly less partial mortality, higher branch growth, and supported greater fish abundances compared to lower densities within the same population...
May 2017: Oecologia
https://www.readbyqxmd.com/read/28337605/application-of-diet-theory-reveals-context-dependent-foraging-preferences-in-an-herbivorous-coral-reef-fish
#6
John Hanmer, J Wilson White, Joseph R Pawlik
Dietary preferences of grazers can drive spatial variability in top-down control of autotroph communities, because diet composition may depend on the relative availability of autotroph species. On Caribbean coral reefs, parrotfish grazing is important in limiting macroalgae, but parrotfish dietary preferences are poorly understood. We applied diet-switching analysis to quantify the foraging preferences of the redband parrotfish (Sparisoma aurofrenatum). At 12 Caribbean reefs, we observed 293 redband parrotfish in 5-min feeding bouts and quantified relative benthic algal cover using quadrats...
May 2017: Oecologia
https://www.readbyqxmd.com/read/28329020/how-a-collaborative-integrated-taxonomic-effort-has-trained-new-spongiologists-and-improved-knowledge-of-martinique-island-french-antilles-eastern-caribbean-sea-marine-biodiversity
#7
Thierry Pérez, Maria-Cristina Díaz, César Ruiz, Baslavi Cóndor-Luján, Michelle Klautau, Eduardo Hajdu, Gisele Lobo-Hajdu, Sven Zea, Shirley A Pomponi, Robert W Thacker, Sophie Carteron, Guillaume Tollu, Adeline Pouget-Cuvelier, Philippe Thélamon, Jean-Philippe Marechal, Olivier P Thomas, Alexander V Ereskovsky, Jean Vacelet, Nicole Boury-Esnault
Although sponges are important components of benthic ecosystems of the Caribbean Sea, their diversity remained poorly investigated in the Lesser Antilles. By organizing a training course in Martinique, we wanted both to promote taxonomy and to provide a first inventory of the sponge diversity on this island. The course was like a naturalist expedition, with a field laboratory and a classroom nearby. Early-career scientists and environmental managers were trained in sponge taxonomy. We gathered unpublished data and conducted an inventory at 13 coastal sites...
2017: PloS One
https://www.readbyqxmd.com/read/28320966/tropical-dead-zones-and-mass-mortalities-on-coral-reefs
#8
Andrew H Altieri, Seamus B Harrison, Janina Seemann, Rachel Collin, Robert J Diaz, Nancy Knowlton
Degradation of coastal water quality in the form of low dissolved oxygen levels (hypoxia) can harm biodiversity, ecosystem function, and human wellbeing. Extreme hypoxic conditions along the coast, leading to what are often referred to as "dead zones," are known primarily from temperate regions. However, little is known about the potential threat of hypoxia in the tropics, even though the known risk factors, including eutrophication and elevated temperatures, are common. Here we document an unprecedented hypoxic event on the Caribbean coast of Panama and assess the risk of dead zones to coral reefs worldwide...
April 4, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28319134/genotype-and-local-environment-dynamically-influence-growth-disturbance-response-and-survivorship-in-the-threatened-coral-acropora-cervicornis
#9
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/28261447/caribbean-massive-corals-not-recovering-from-repeated-thermal-stress-events-during-2005-2013
#10
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/28243525/genetic-diversity-and-differentiation-in-reef-building-millepora-species-as-revealed-by-cross-species-amplification-of-fifteen-novel-microsatellite-loci
#11
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
https://www.readbyqxmd.com/read/28228681/discovery-of-a-new-species-of-hermit-crab-of-the-genus-pylopaguropsis-alcock-1905-from-the-caribbean-den-commensal-or-cleaner-crustacea-anomura-paguridae
#12
Rafael Lemaitre
A new secretive, yet brightly colored hermit crab species of the family Paguridae, Pylopaguropsis mollymulleraesp. n., is fully described based on specimens from the reefs of Bonaire, Lesser Antilles, southern Caribbean Sea. Populations of this new species were discovered and photographed in the Bonaire National Marine Park under a large coral ledge, at a depth of 13.7 m, living in crevices known by scuba divers to serve as den to a pair of "flaming reef lobsters" Enoplometopus antillensis, or a "broad banded moray" Channomuraena vittata...
2017: ZooKeys
https://www.readbyqxmd.com/read/28225766/marine-actinobacteria-as-a-source-of-compounds-for-phytopathogen-control-an-integrative-metabolic-profiling-bioactivity-and-taxonomical-approach
#13
Luz A Betancur, Sandra J Naranjo-Gaybor, Diana M Vinchira-Villarraga, Nubia C Moreno-Sarmiento, Luis A Maldonado, Zulma R Suarez-Moreno, Alejandro Acosta-González, Gillermo F Padilla-Gonzalez, Mónica Puyana, Leonardo Castellanos, Freddy A Ramos
Marine bacteria are considered as promising sources for the discovery of novel biologically active compounds. In this study, samples of sediment, invertebrate and algae were collected from the Providencia and Santa Catalina coral reef (Colombian Caribbean Sea) with the aim of isolating Actinobateria-like strain able to produce antimicrobial and quorum quenching compounds against pathogens. Several approaches were used to select actinobacterial isolates, obtaining 203 strains from all samples. According to their 16S rRNA gene sequencing, a total of 24 strains was classified within Actinobacteria represented by three genera: Streptomyces, Micromonospora, and Gordonia...
2017: PloS One
https://www.readbyqxmd.com/read/28168098/identifying-zooplankton-community-changes-between-shallow-and-upper-mesophotic-reefs-on-the-mesoamerican-barrier-reef-caribbean
#14
Dominic A Andradi-Brown, Catherine E I Head, Dan A Exton, Christina L Hunt, Alicia Hendrix, Erika Gress, Alex D Rogers
Mesophotic coral ecosystems (MCEs, reefs 30-150 m) are understudied, yet the limited research conducted has been biased towards large sessile taxa, such as scleractinian corals and sponges, or mobile taxa such as fishes. Here we investigate zooplankton communities on shallow reefs and MCEs around Utila on the southern Mesoamerican Barrier Reef using planktonic light traps. Zooplankton samples were sorted into broad taxonomic groups. Our results indicate similar taxonomic zooplankton richness and overall biomass between shallow reefs and MCEs...
2017: PeerJ
https://www.readbyqxmd.com/read/28152002/the-effects-of-elevated-seawater-temperatures-on-caribbean-gorgonian-corals-and-their-algal-symbionts-symbiodinium-spp
#15
Tamar L Goulet, Kartick P Shirur, Blake D Ramsby, Roberto Iglesias-Prieto
Global climate change not only leads to elevated seawater temperatures but also to episodic anomalously high or low temperatures lasting for several hours to days. Scleractinian corals are detrimentally affected by thermal fluctuations, which often lead to an uncoupling of their mutualism with Symbiodinium spp. (coral bleaching) and potentially coral death. Consequently, on many Caribbean reefs scleractinian coral cover has plummeted. Conversely, gorgonian corals persist, with their abundance even increasing...
2017: PloS One
https://www.readbyqxmd.com/read/28130801/bottom-up-and-top-down-controls-on-coral-reef-sponges-disentangling-within-habitat-and-between-habitat-processes
#16
Janie Wulff
Polarized debates about top-down vs. bottom-up control have given way to more nuanced understanding of control by both resources and consumers in many systems, but coral reef sponges have recently been asserted to differ from other groups in being controlled exclusively top-down. This assertion has been countered by reports of exclusively bottom-up control, with both conclusions based on studies of the same species. Accelerating deterioration of coral reefs motivates knowing the contexts in which either consumers or nutrients or both control key ecosystem role players like sponges...
April 2017: Ecology
https://www.readbyqxmd.com/read/28112169/prehistorical-and-historical-declines-in-caribbean-coral-reef-accretion-rates-driven-by-loss-of-parrotfish
#17
Katie L Cramer, Aaron O'Dea, Tara R Clark, Jian-Xin Zhao, Richard D Norris
Caribbean coral reefs have transformed into algal-dominated habitats over recent decades, but the mechanisms of change are unresolved due to a lack of quantitative ecological data before large-scale human impacts. To understand the role of reduced herbivory in recent coral declines, we produce a high-resolution 3,000 year record of reef accretion rate and herbivore (parrotfish and urchin) abundance from the analysis of sediments and fish, coral and urchin subfossils within cores from Caribbean Panama. At each site, declines in accretion rates and parrotfish abundance were initiated in the prehistorical or historical period...
January 23, 2017: Nature Communications
https://www.readbyqxmd.com/read/28097070/sponge-exhalent-seawater-contains-a-unique-chemical-profile-of-dissolved-organic-matter
#18
Cara L Fiore, Christopher J Freeman, Elizabeth B Kujawinski
Sponges are efficient filter feeders, removing significant portions of particulate and dissolved organic matter (POM, DOM) from the water column. While the assimilation and respiration of POM and DOM by sponges and their abundant microbial symbiont communities have received much attention, there is virtually no information on the impact of sponge holobiont metabolism on the composition of DOM at a molecular-level. We applied untargeted and targeted metabolomics techniques to characterize DOM in seawater samples prior to entering the sponge (inhalant reef water), in samples exiting the sponge (exhalent seawater), and in samples collected just outside the reef area (off reef seawater)...
2017: PeerJ
https://www.readbyqxmd.com/read/28072444/predator-effects-on-reef-fish-settlement-depend-on-predator-origin-and-recruit-density
#19
Cassandra E Benkwitt
During major life-history transitions, animals often experience high mortality rates due to predation, making predator avoidance particularly advantageous during these times. There is mixed evidence from a limited number of studies, however, regarding how predator presence influences settlement of coral-reef fishes and it is unknown how other potentially mediating factors, including predator origin (native vs. nonnative) or interactions among conspecific recruits, mediate the non-consumptive effects of predators on reef fish settlement...
April 2017: Ecology
https://www.readbyqxmd.com/read/28054550/the-emergent-role-of-small-bodied-herbivores-in-pre-empting-phase-shifts-on-degraded-coral-reefs
#20
Caitlin D Kuempel, Andrew H Altieri
Natural and anthropogenic stressors can cause phase shifts from coral-dominated to algal-dominated states. In the Caribbean, over-fishing of large herbivorous fish and disease among the long-spined urchin, Diadema, have facilitated algal growth on degraded reefs. We found that diminutive species of urchin and parrotfish, which escaped die-offs and fishing pressure, can achieve abundances comparable to total herbivore biomass on healthier, protected reefs, and exert sufficient grazing function to pre-empt macroalgal dominance following mass coral mortality...
January 5, 2017: Scientific Reports
keyword
keyword
49521
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"