Tara Pacific expedition - november 2017 Outer reef of Egum Atoll, Papua New Guinea, Guillaume Iwankow (professional diver, CRIOBE) coring a Porites lobata coral. He uses a hydraulic perforator, powered by a surface compressor which is located in a boat, anchored over the coring site. A coring procedure is executed in several steps and takes between 20 minutes and 2 hours, depending on several factors. D: 10 m

• Contributor: BIOSPHOTO / Alamy Stock Photo
• Image ID: TAEDYF
• File size: 103.4 MB (5.6 MB Compressed download)
• Releases: Model - no | Property - no
• Dimensions: 7360 x 4912 px | 62.3 x 41.6 cm | 24.5 x 16.4 inches | 300dpi
• Date taken: 22 January 2019
• Location: Pacific
• Photographer: Christoph Gerigk / Biosphoto

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