Multiple octopus species inhabit overlapping ecohabitats worldwide yet little is known about the behavioral mechanisms that facilitate such coexistence. To distinguish coexistence mechanisms of Octopus vulgaris and Macrotritopus defilippi in high densities, rigorous fieldwork was conducted to examine their respective foraging strategies. Direct observations via SCUBA diving combined with active and remote video demonstrated that O. vulgaris was primarily nocturnal, foraged on hard bottom substrate, and consumed mostly bivalves while M. defilippi was strictly diurnal, foraged on soft bottom substrate, and consumed exclusively crustaceans. Both species showed a saltatory (stop and go) foraging tactic dominated by speculative bottom searching, which is guided by visual scanning and decision making, followed by tactile endeavors of the arms and chemotactile suckers. Species-specific behaviors were parachute attack (O. vulgaris), mimicry of flounder swimming (M. defilippi), and tripod stance (M. defilippi). Coexistence between these two species results primarily from differences in resource use (habitat and diet) and temporal and spatial heterogeneity. Incorporating species-specific behavioral habits is a key tool for understanding octopus ecology and coexistence.

多种章鱼物种栖息在世界范围内重叠的生态栖息地，但对促进这种共存的行为机制知之甚少。为了区分高密度章鱼和Macrotritopus defilippi的共存机制，进行了严格的实地考察以检查它们各自的觅食策略。通过 SCUBA 潜水结合主动和远程视频进行的直接观察表明，O. vulgaris主要在夜间活动，在硬底基质上觅食，主要食用双壳类动物，而M. defilipp我是严格昼伏夜出的，在软底基质上觅食，只吃甲壳类动物。这两个物种都表现出跳跃式（走走停停）觅食策略，主要是推测性的底部搜索，这是由视觉扫描和决策引导的，其次是手臂和化学触觉吸盘的触觉努力。特定物种的行为是降落伞攻击 ( O. vulgaris )、模仿比目鱼游泳 ( M. defilippi ) 和三脚架姿势 ( M. defilippi )。这两个物种之间的共存主要源于资源利用（栖息地和饮食）的差异以及时空异质性。结合特定物种的行为习惯是了解章鱼生态和共存的关键工具。