Gleason et al. 2010

scientific article | Coral Reefs

Landscape video mosaic from a mesophotic coral reef

Gleason ACR, Gracias N, Lirman D, Gintert BE, Smith TB, Dick MC, Reid RP

Adobe pdf disabled addd0070fc849240f18943197db4226a4caf211ae987143710823268485043aa
Www fec836ca290318f37dc3ecd481f22b98faf488d5ddef687807ca6b76d8e893ed
Gscholar 58dd9f05df3b8d1811d087e8507325500777053d6677b471fd75373a30a4cee1

Landscape video mosaics (Lirman et al. 2007) were acquired at four sites in the Hind Bank Marine Conservation District, US Virgin Islands (Smith et al. In press), one of which is shown here (Fig. 1). This mosaic covers 31 m2 with a resolution of 1.8 mm/pixel. Live stony coral cover, estimated from 400 random points on the mosaic, was high (42.5%). The community was dominated by plating or encrusting forms of colonies of the genus Montastraea. Other coral genera identified from the video at lower abundance included Agaricia, Colpophyllia, Helioseris, Mycetophyllia, and Porites. Dive time and diver training were not obstacles to video acquisition for landscape mosaics, which in this case took only 25 min per mosaic by a diver who had only one practice acquisition. Processing each mosaic took about 1 h of analyst time and 24 h of computer time. The ease of data acquisition, ability to use off-the-shelf hardware (i.e., a video camera and possibly lights), and potential suite of indicators (e.g., benthic cover, coral sizes, disease prevalence, and bleaching) that can be obtained from the images suggest that landscape mosaics could be applied widely for surveys of mesophotic coral ecosystems.

Research sites

10.1007   s00338 009 0544 2
Meta-data (pending validation)

Mesophotic “mentions”
2 x (total of 276 words)

Community structure Methods and Technology

Research focus
Scleractinia (Hard Corals)

US Virgin Islands

Research platforms
Diving (unspecified)
Author profiles
Arthur Gleason ( 2 pubs)
Tyler Smith ( 20 pubs)