## 3 Selection of the Site and Assessment of Carrying Capacity  
Several strategies will be employed to attain the ecological and environmental sustainability of aquaculture. The right location of a farm to reduce unwanted impacts is an essential strategy. The foundation of sustainable aquaculture will be comprised of proper design of the hatchery, selection of site, as well as proper management [25]. Policy is also essential in this process, since it regulates entry into the aquaculture industry and provides areas that are appropriate and sufficient of determining the environmental effects of aquaculture. In most states, the aquaculture sector lacks a legislative framework governing environmental quality. Carrying capacity is the maximum load of cultured species that the environment can sustain without deleterious effects on the ecosystem, system used for culture, and stocks [26]. The cultured biomass in an aquaculture system provides input-output relationships in which the inputs are additive and the outputs are subtractive. Carrying capacity has a cultural dimension and is therefore typically dynamic [27].  
Determination of limits and standards using improved and innovated concept for site selection is the first step to policy formulation in order to avoid excessive carrying capacity [28]. For instance, when aquaculture creates no negative effects in an environment and maximum production limitations are met with social satisfaction, the carrying capacity assessment is reached [29]. As a result, sustainability is realised due to the fact that community satisfaction is attained through sufficient economic rewards derived from eco-friendly technology, which also provides a place for additional resource users. Followingthe determination of the carrying capacity, it is possible to establish aquaculture facilities with capacities that correspond to the carrying capacity. Carrying capacity is also used for aquaculture planning, and the assessment of acceptable aquaculture zones [30].  
The total market for aquaculture space is anticipated to increase because of the sector's rapid expansion, particularly in Asia, with the utilisation of coastal slopes that are affecting the ecosystem. Local considerations pertaining to a site's ecological sustainability and the size of the market are two common selection criteria for selection sites [31]. Accessibility to infrastructure and supporting facilities is a consideration in deciding the location of aquaculture operations, which has environmental, transportation, and economic implications. Because of the short-term aspect of this management strategy, aquaculture progress will be hampered even more, as it has a limited geographic scope and wider implications on environmental sustainability in the remote location [32]. Carrying capacity is evaluated throughout the whole site selection procedure, beginning with the calculation on capability and giving special attention during selection. Since the process needs to begin at a specified time, it adheres to spatial and temporal aspects, plus evaluating the complete range of available space before determining aquaculture-suitable locations. The assessment of carrying capacity must be adapted to the proposed target species and system as it is an ongoing system. Additionally, the estimation of carrying capacity is still necessary for the extension of established species to new places.