Results 11 to 20 of about 8,365 (254)

Applications of unmanned aerial vehicles in intertidal reef monitoring. [PDF]

Sci Rep, 2017
AbstractMonitoring of intertidal reefs is traditionally undertaken by on-ground survey methods which have assisted in understanding these complex habitats; however, often only a small spatial footprint of the reef is observed. Recent developments in unmanned aerial vehicles (UAVs) provide new opportunities for monitoring broad scale coastal ecosystems ...
Murfitt SL, Allan BM, Bellgrove A, Rattray A, Young MA, Ierodiaconou D.   +5 more
europepmc   +4 more sources

Comparison of methods used to estimate coral cover in the Hawaiian Islands [PDF]

PeerJ, 2015
Nine coral survey methods were compared at ten sites in various reef habitats with different levels of coral cover in Kāne‘ohe Bay, O’ahu, Hawaiʻi. Mean estimated coverage at the different sites ranged from less than 10% cover to greater than 90% cover ...
Paul L. Jokiel, Kuʻulei S. Rodgers, Eric K. Brown, Jean C. Kenyon, Greta Aeby, William R. Smith, Fred Farrell   +6 more
doaj   +2 more sources

Assisted sexual reproduction of Acropora cervicornis for active restoration on Florida’s Coral Reef

Frontiers in Marine Science, 2022
Given the rapid, global decline in the health and abundance of coral reefs, increased investments in restoration-based interventions -including asexual and sexual propagation- are being made by coral reef scientists at research institutions, but also at ...
Hanna R. Koch, Briana Matthews, Celia Leto, Cody Engelsma, Erich Bartels   +4 more
doaj   +1 more source

Monitoring Coral Reefs from Space [PDF]

Oceanography, 2010
Coral reefs are one of the world’s most biologically diverse and productive ecosystems. However, these valuable resources are highly threatened by human activities. Satellite remotely sensed observations enhance our understanding of coral reefs and some of the threats facing them by providing global spatial and time-series data on reef habitats and the
Eakin, C. Mark, Nim, Carl J., Brainard, Russell E., Aubrecht, Christoph, Elvidge, Chris, Gledhill, Dwight K., Muller-Karger, Frank, Mumby, Peter J., Skirving, William J., Strong, Alan E., Wang, Menghua, Weeks, Scarla, Wentz, Frank, Ziskin, Daniel   +13 more
openaire   +8 more sources

No apparent cost of disease resistance on reproductive output in Acropora cervicornis genets used for active coral reef restoration in Florida

Frontiers in Marine Science, 2022
As assisted sexual reproduction interventions continue to become embedded within coral reef restoration initiatives, it is important to understand the potential for trade-offs between key traits like reproductive output and disease resistance.
Hanna R. Koch, Yuen Azu, Yuen Azu, Erich Bartels, Erinn M. Muller   +4 more
doaj   +1 more source

Spatial and Temporal Patterns of Stony Coral Tissue Loss Disease Outbreaks in The Bahamas

Frontiers in Marine Science, 2021
Coral reefs of Grand Bahama and New Providence islands in The Bahamas have been surveyed several times over the past decade, and long-term monitoring indicates declines in coral cover associated with hurricanes, bleaching events, and local threats ...
Craig Dahlgren, Valeria Pizarro, Krista Sherman, William Greene, Joseph Oliver   +4 more
doaj   +1 more source

Spatiotemporal Variation in Coral Assemblages and Reef Habitat Complexity among Shallow Fore-Reef Sites in the Florida Keys National Marine Sanctuary

Diversity, 2022
With the unprecedented degradation and loss of coral reefs at multiple scales, the underlying changes in abiotic and biotic features relevant to the three-dimensional architecture of coral reefs are critical to conservation and restoration.
Kayelyn R. Simmons, DelWayne R. Bohnenstiehl, David B. Eggleston   +2 more
doaj   +1 more source

Coral reef bleaching monitoring based on multitime Landsat-8 remote sensing image series

地质科技通报, 2022
In recent years, due to the influence of human activities and global warming, the coral reef ecosystem in the South China Sea (SCS) has degraded, and bleaching occurs.
Ke Wu, Fan Yang, Ying Xu
doaj   +1 more source

Oceanic productivity and high-frequency temperature variability—not human habitation—supports calcifier abundance on central Pacific coral reefs

Frontiers in Marine Science, 2022
Past research has demonstrated how local-scale human impacts—including reduced water quality, overfishing, and eutrophication—adversely affect coral reefs. More recently, global-scale shifts in ocean conditions arising from climate change have been shown
Brittany Huntington, Bernardo Vargas-Ángel, Courtney S. Couch, Hannah C. Barkley, Melanie Abecassis   +4 more
doaj   +1 more source

MONITORING OF THE PALM BEACH ARTIFICIAL REEF

Coastal Engineering Proceedings, 2023
Palm Beach is located on the Gold Coast, Queensland, Australia. Infrastructure along Palm Beach is exposed to high coastal hazard risks. The City of Gold Coast (City) delivered the Palm Beach Shoreline Project (PBSP) in 2019, involving beach nourishment stabilised by an artificial reef, as a sustainable solution to coastal hazards threats and provide ...
Paul Prenzler, Shannon Hunt, Zoe Elliott-Perkins, Dan Hamilton, Dan Messiter, Courtney Wharton, Evan Watterson   +6 more
openaire   +1 more source