Abstract
This study was conducted to examine several physical aspects of shelter design necessary for enhancing sea cucumber resources. Physical factors were restricted to hole sizes (0.0014, 0.0025 and 0.0079 ㎡) and materials (porous cement mortar, cement mortar and PVC) of blocks for shelter structure and focused on which hole shapes and sizes and block materials sea cucumbers prefer by water temperature (10, 15 and 20℃).BR A series of experiments were conducted in a recirculation aquaculture system with dimensions of 2100×1000×1100 mm. Observations of video camera footage were made of sea cucumber given the selection of experimental blocks with different materials, hole shapes and sizes. 70 sea cucumbers (36.37±5 g) were used for each experiment. The experiments were replicated 9 times. The numbers of the animals attracted by different blocks were observed and recorded in twice a day. BR The data were evaluated by an analysis of variance (ANOVA). More sea cucumbers were attracted in large size hole (P0.05) and rough surface of the shelter(P0.05) at 15 and 20℃. It was observed that the porous cement mortar was more suitable for shelter material to culture sea cucumber than cement mortar and PVC.
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