By Paul Marshall, Heidi Schuttenberg
This advisor is a made of the collaboration of over fifty specialists in coral reef managemant. It presents a transparent and obtainable synthesis of present wisdom on coral bleachng. It presents science-based advice on activities reef managers can take up respomse to a mass bleaching occasion, and how you can help the power of reefs to outlive and get over such occasions.
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Extra resources for A Reef Manager's Guide to Coral Bleaching
Less suitable than LIT for collecting data on relative abundance, and more time-consuming. • Type, abundance and density of individual organisms. • Proportion of corals bleached and severity of bleaching. The video footage is analysed back in the laboratory. 4). • Provides a permanent visual record of the reef community, and reduces time required in the field. • Requires relatively expensive equipment, trained analysts to collect the data, operate the video-analysis equipment and software, and interpret the footage.
Naneng Setiasih A REEF MANAGER’S GUIDE TO CORAL BLEACHING Observers record different information for each of the three techniques. When using LITs, the observer notes changes from one benthic life form (plant or animal growing attached to the seabed) to another along the transect. 0 m. Though (Indonesia) as part of an ongoing coral bleaching monitoring program more time intensive, belt described in case study 1 transects cover a greater area of the site than LITs can. Therefore, managers choosing to implement this method can better assess the proportion of coral colonies that are affected by bleaching and can evaluate differences in bleaching response that may be linked to colony size.
Particularly for small reef areas with complex oceanography and strong mixing gradients, in situ measurements can help refine bleaching thresholds. Local sea temperatures can be monitored using in situ instruments that either require manual download or are equipped with remote data transfer features. Simple, stand-alone temperature data loggers are now readily available and affordable. Where resources are available, weather stations with telemetry systems can be used to provide real-time data on a full range of variables that influence bleaching, such as air and water temperature, wind, current and irradiance.
A Reef Manager's Guide to Coral Bleaching by Paul Marshall, Heidi Schuttenberg