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Laudien, Jürgen; Heran Arce, Thomas; Hartig, Anita; Bartsch, Julian; Kuwer, Paul; Häussermann, Verena; Försterra, Günter; Schmidt-Grieb, Gertraut; Richter, Claudio (2019): Photographs of cold-water scleractinian corals maintained in the AWI experimental aquarium system. PANGAEA,

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This dataset provides observational evidence of polyp detachment in the solitary cold-water coral Caryophyllia huinayensis in the absence of disturbance. Three individuals spontaneously detached from their skeletons after keeping them for 37 months in aquaria with regular feeding and low environmental variability. A fourth individual started to detach, however, the coral remained in a semi-detached state with exposed mesenterial filaments along the edge for ten weeks.
Method: binocular microscope: Leica MZ 12_5, Pictures A_07a-2016_12_21.jpg, D1_11a-2016_12_21.jpg, and D2_11b-2016_12_21.jpg: Olympus SZX12, camera DP72, Image Analysis Software for Industrial Microscopes „analySIS FIVE“; Pictures C_07c-2017_03_21.jpg, E_11-2017_03_21.jpg, F1_11c-2017_03_21.jpg, and F2_11d-2017_03_21.jpg: camera ColorView soft imaging system, Image Analysis Software for Industrial Microscopes „cell^B“; Pictures G_101-2018_10_15.jpg to I_100b-2018_10_19.jpg: Nikon D7000 DSLR camera with AF-S VR Micro Nikkor 60mm f/2.8G ED. This dataset was generated in the frame of the co-operation between the Reserva Anihue (, the Huinay Scientific Field Station ( and the Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research (

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