O
Ofri Johan
Publications - 38
Citations - 1590
Ofri Johan is an academic researcher. The author has contributed to research in topics: Coral & Coral reef. The author has an hindex of 7, co-authored 29 publications receiving 1393 citations.
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Journal ArticleDOI
One-third of reef-building corals face elevated extinction risk from climate change and local impacts
Kent E. Carpenter,Muhammad Abrar,Greta S. Aeby,Richard B. Aronson,Stuart Banks,Andrew W. Bruckner,Angel Chiriboga,Jorge Cortés,J. Charles Delbeek,Lyndon DeVantier,Graham J. Edgar,Alasdair J. Edwards,Douglas Fenner,Hector M. Guzman,Bert W. Hoeksema,Gregor Hodgson,Ofri Johan,Wilfredo Y. Licuanan,Suzanne R. Livingstone,Edward R. Lovell,Jennifer Moore,David Obura,Domingo Ochavillo,Beth Polidoro,William F. Precht,Miledel Christine C. Quibilan,Clarissa Reboton,Zoe T. Richards,Alex Rogers,Jonnell C. Sanciangco,Anne Sheppard,Charles Sheppard,Jennifer E. Smith,Simon N. Stuart,Emre Turak,J. E. N. Veron,Carden C. Wallace,Ernesto Weil,Elizabeth Wood +38 more
TL;DR: The Caribbean has the largest proportion of corals in high extinction risk categories, whereas the Coral Triangle has the highest proportion of species in all categories of elevated extinction risk.
Journal ArticleDOI
Urban coral reefs: Degradation and resilience of hard coral assemblages in coastal cities of East and Southeast Asia.
Eliza C. Heery,Bert W. Hoeksema,Nicola K. Browne,Nicola K. Browne,James Davis Reimer,Put O. Ang,Danwei Huang,Daniel A. Friess,Loke Ming Chou,Lynette H.L. Loke,Poonam Saksena-Taylor,Nadia Alsagoff,Thamasak Yeemin,Makamas Sutthacheep,Si Tuan Vo,Arthur R. Bos,Arthur R. Bos,Girley S. Gumanao,Muhammad Ali Syed Hussein,Zarinah Waheed,David J. W. Lane,Ofri Johan,Andreas Kunzmann,Jamaluddin Jompa,Suharsono,Daisuke Taira,Andrew G. Bauman,Peter A. Todd +27 more
TL;DR: This review highlights several key characteristics of urban coral reefs, including "reef compression" (a decline in bathymetric range with increasing turbidity and decreasing water clarity over time and relative to shore), dominance by domed coral growth forms and low reef complexity, variable city-specific inshore-offshore gradients.
Journal ArticleDOI
Coral mortality induced by the 2015-2016 El-Niño in Indonesia: the effect of rapid sea level fall
Eghbert Elvan Ampou,Eghbert Elvan Ampou,Ofri Johan,Christophe E. Menkès,Fernando Niño,Florence Birol,Sylvain Ouillon,Serge Andréfouët +7 more
TL;DR: In this article, the authors show that sea level was at its lowest in the past 12 years, affecting corals living in the bathymetric range exposed to unusual emersion.
Journal ArticleDOI
The Distribution and Abundance of Black Band Disease and White Syndrome in Kepulauan Seribu, Indonesia
TL;DR: A positive correlation between overall coral cover and the dominant reef building coral Montipora spp.
Distribution and Abundance of Black Band Disease on Corals Montipora sp in Seribu Islands, Jakarta
TL;DR: A 20m-belt transect with 1 m width to the left and right, and 3 replicates placed on the reef flat with a depth of 0-3 m, and a record number of infected colonies of BBD was used to determine the preliminary abundance of coral disease on several islands in the Thousand Islands as discussed by the authors.