53 research outputs found

    A systematic review and meta-analysis of the direct effects of nutrients on corals

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    Chronic exposure of coral reefs to elevated nutrient conditions can modify the performance of the coral holobiont and shift the competitive interactions of reef organisms. Many studies have nowquantified the links between nutrients and coral performance, but fewhave translated these studies to directly address coastal water quality standards. To address this management need, we conducted a systematic review of peer-reviewed studies, public reports, and gray literature that examined the impacts of dissolved inorganic nitrogen (DIN: nitrate, nitrite, and ammonium) and dissolved inorganic phosphorus (DIP: phosphate) on scleractinian corals. The systematic review resulted in 47 studies with comparable data on coral holobiont responses to nutrients: symbiont density, chlorophyll α (chl-α) concentration, photosynthesis, photosynthetic efficiency, growth, calcification, adult survival, juvenile survival, and fertilization. Mixed-effects meta-regression meta-analyses were used to determine the magnitude of the positive or negative effects of DIN and DIP on coral responses. Zooxanthellae density (DIN & DIP), chl-α concentration (DIN), photosynthetic rate (DIN), and growth (DIP) all exhibited positive responses to nutrient addition; maximum quantum yield (DIP), growth (DIN), larval survival (DIN), and fertilization (DIN) exhibited negative responses. In lieu of developing specific thresholds for the management of nutrients as a stressor on coral reefs, we highlight important inflection points in the magnitude and direction of the effects of inorganic nutrients and identify trends among coral responses. The responses of corals to nutrients are complex, warranting conservative guidelines for elevated nutrient concentrations on coral reefs

    Large expert-curated database for benchmarking document similarity detection in biomedical literature search

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    Document recommendation systems for locating relevant literature have mostly relied on methods developed a decade ago. This is largely due to the lack of a large offline gold-standard benchmark of relevant documents that cover a variety of research fields such that newly developed literature search techniques can be compared, improved and translated into practice. To overcome this bottleneck, we have established the RElevant LIterature SearcH consortium consisting of more than 1500 scientists from 84 countries, who have collectively annotated the relevance of over 180 000 PubMed-listed articles with regard to their respective seed (input) article/s. The majority of annotations were contributed by highly experienced, original authors of the seed articles. The collected data cover 76% of all unique PubMed Medical Subject Headings descriptors. No systematic biases were observed across different experience levels, research fields or time spent on annotations. More importantly, annotations of the same document pairs contributed by different scientists were highly concordant. We further show that the three representative baseline methods used to generate recommended articles for evaluation (Okapi Best Matching 25, Term Frequency-Inverse Document Frequency and PubMed Related Articles) had similar overall performances. Additionally, we found that these methods each tend to produce distinct collections of recommended articles, suggesting that a hybrid method may be required to completely capture all relevant articles. The established database server located at https://relishdb.ict.griffith.edu.au is freely available for the downloading of annotation data and the blind testing of new methods. We expect that this benchmark will be useful for stimulating the development of new powerful techniques for title and title/abstract-based search engines for relevant articles in biomedical research.Peer reviewe

    Counts of Elacatinus gobies on Bahamian reefs with controlled lionfish densities from reef surveys conducted in Eleuthera, Bahamas in 2012 (Lionfish Invasion project)

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    Dataset: lionfish and goby countsThis dataset includes counts of Elacatinus gobies on Bahamian reefs with controlled lionfish densities from reef surveys conducted in Eleuthera, Bahamas in 2012. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/3886NSF Division of Ocean Sciences (NSF OCE) OCE-085116

    Cleaner and host species observed on Bahamian reefs under varying experimental conditions in Eleuthera, Bahamas in 2012 (Lionfish Invasion project)

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    Dataset: lionfish cleaner bottle exptCleaner and host species observed on Bahamian reefs under varying experimental conditions in Eleuthera, Bahamas in 2012 (Lionfish Invasion project). For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/3907NSF Division of Ocean Sciences (NSF OCE) OCE-085116

    Results of experimental field studies, in the Bahamas, Cayman Islands, and Philippines, assessing susceptibility of red lionfish (Pterois volitans) to parasitic gnathiid isopods in both native and introduced ranges in 2009-2011

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    Dataset: lionfish gnathiid experimentsResults of experimental field studies, in the Bahamas, Cayman Islands, and Philippines, assessing susceptibility of red lionfish (Pterois volitans) to parasitic gnathiid isopods in both native and introduced ranges in 2009-2011. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/3889NSF Division of Ocean Sciences (NSF OCE) OCE-085116

    Results of an investigation of parasite communities infecting lionfish (Pterois volitans) in their native range, Guam and the Philippines, and in their invaded range, the Bahamas and the Cayman Islands

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    Dataset: lionfish parasitesResults of an investigation of parasite communities infecting lionfish (Pterois volitans) in their native range, Guam and the Philippines, and in their invaded range, the Bahamas and the Cayman Islands. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/3894NSF Division of Ocean Sciences (NSF OCE) OCE-085116
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