scholarly journals Convergence of stakeholders’ environmental threat perceptions following mass coral bleaching of the Great Barrier Reef

2020 ◽  
Author(s):  
Lauric Thiault ◽  
Matthew I. Curnock ◽  
Georgina G. Gurney ◽  
Scott F. Heron ◽  
Nadine A. Marshall ◽  
...  
2021 ◽  
Author(s):  
Wenhui ZHAO ◽  
Yi HUANG ◽  
Steven T Siems ◽  
Michael J Manton

2017 ◽  
Vol 33 (3) ◽  
pp. 160-170 ◽  
Author(s):  
Hilary Whitehouse ◽  
Marie Taylor ◽  
Neus (Snowy) Evans ◽  
Tanya Doyle ◽  
Juanita Sellwood ◽  
...  

AbstractThis is a researched account of an offshore coral reef education partnership formed during a time of rapid environmental change (the coral bleaching events in the years 2015 to 2017). The aim of the partnership is to encourage a learning connection with Sea Country. Framed as civic environmentalism, this article explores the dimensions of practice between a reef tourism provider, local schools, a local university, and local Indigenous rangers that enables primary, secondary and university students, rangers, and educators to travel together on day trips to the outer Great Barrier Reef and islands and have immersive and sharing educational experiences. Offshore environmental education and higher quality marine education is increasingly important in the Anthropocene, when Australian reefs are subject to the pressures of climate change and other impacts other impacts that diminish their resilience.


PLoS ONE ◽  
2014 ◽  
Vol 9 (2) ◽  
pp. e88720 ◽  
Author(s):  
Neal E. Cantin ◽  
Janice M. Lough

OCEANS 2006 ◽  
2006 ◽  
Author(s):  
M. Heron ◽  
B. Willis ◽  
A. Prytz ◽  
P. Cetina-Heredia ◽  
Y. Mao ◽  
...  

2018 ◽  
Vol 9 (1) ◽  
Author(s):  
Pedro R. Frade ◽  
Pim Bongaerts ◽  
Norbert Englebert ◽  
Alice Rogers ◽  
Manuel Gonzalez-Rivero ◽  
...  

Eos ◽  
2019 ◽  
Vol 100 ◽  
Author(s):  
David Shultz

A new study using seawater chemistry compares the status of the iconic reef before and after a bleaching event.


2007 ◽  
Vol 4 (5) ◽  
pp. 310 ◽  
Author(s):  
Graham Jones ◽  
Mark Curran ◽  
Andrew Broadbent ◽  
Stacey King ◽  
Esther Fischer ◽  
...  

Environmental context. Levels of atmospheric dimethylsulfide (DMS) and its oxidation products are reputed to affect the microphysics of clouds and the amount of incoming solar radiation to the ocean. Studies of DMS and its precursor compound dimethylsulfoniopropionate (DMSP) at two inshore fringing coral reefs in the Great Barrier Reef highlight pronounced seasonal, diurnal and tidal variation of these compounds, with dissolved DMS and DMSP significantly correlated with sea surface temperatures (SSTs) up to 30°C. During a coral bleaching episode at one of the reef sites, dissolved DMS concentrations decreased when SSTs exceeded 30°C, a result replicated in chamber experiments with staghorn coral. The results raise interesting questions on the role of these organosulfur substances in corals and whether DMS emissions from coral reefs could have an effect on regional climate in the Great Barrier Reef. Abstract. A study of dissolved dimethylsulfide (DMSw), dissolved and particulate dimethylsulfoniopropionate (DMSPd, DMSPp), and atmospheric dimethylsulfide (DMSa) was carried out at two inshore fringing coral reefs (Orpheus Island and Magnetic Island) in the Great Barrier Reef (GBR) to investigate the variation of these organosulfur substances with season, sea surface temperature, tides, and time of day. Highest concentrations of these organosulfur substances occurred in the summer months at both reefs, with lowest concentrations occurring during winter, suggesting a biological source of these compounds from the reef flats. At the Orpheus Island reef, where more measurements were made, DMSw and DMSPd were significantly correlated with tidal height during the flooding tide over the reef (r = 0.37, P < 0.05; r = 0.58, P < 0.01 respectively), and elevated DMSw and DMSa concentrations generally occurred in the daylight hours, possibly reflecting photosynthetic production of DMSw from the reef flats. Chamber experiments with the staghorn coral Acropora formosa confirmed that corals produce DMSw in the day. DMSw (r = 0.43, P < 0.001) and DMSPd (r = 0.59, P < 0.001) were significantly positively correlated with sea surface temperatures (SST) at the Orpheus Island reef. During severe coral bleaching at the eutrophic Magnetic Island reef in the summer, DMSw concentrations decreased at SSTs greater than 30°C, suggesting that reef production of DMSw decreases during elevated SSTs. This was later confirmed in chamber experiments with Acropora formosa, which showed that when this coral was exposed to temperatures at its bleaching threshold (31°C), decreased production of DMSw occurred. These results suggest that DMS and DMSP in coral zooxanthellae may be functioning as antioxidants, but further experiments are needed to substantiate this.


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