Abstract
Tidal and oceanic currents are promising marine renewable energy. However, there is a concern about potential effects on marine environment and organisms to install such kind of device in the ocean. In particular, collision with marine species and turbines is still unknown and this collision risk is a great concern among regulators and developers. If we attempt to install the device at a site where fishery is major industry, regulators and developers need to negotiate with local fishermen in advance, moreover they need to cautious it during operation. Therefore, several experiments were conducted in terms of collision risk. Taya [1] and Zhang et al. [6] carried out for an experiment with just one type of fish. Based on their research, another type of fish is examined in this research to show different behaviour around turbines.