Biofloc technology (BFT) is gaining traction as a strategic aquaculture tool for boosting feed conversions, biosecurity, and wastewater recycling. The significant aspect of BFT is aquaculture with highest stocking density and minimal water exchange. It not only improves the water quality of a system by removing inorganic nitrogen from wastewater but also serves as a suitable feed supplement and probiotic source for cultured species. This technology is commonly used for shrimp and tilapia culture and can be used for both semi-intensive and intensive culture systems. Biofloc, when combined with formulated diets, forms a balanced food chain that improves growth performance. Nutrients in this system are continuously recycled and reused and form an efficient alternative system in aquaculture. In addition to the reduction in water exchange, it is also considered as a bio-security measure, since it prevents entry of disease from outside sources. Aquamimicry is an innovative concept that simulates natural estuarine conditions by developing copepods that act as supplementary nutrition especially for shrimp culture. The review highlights the process, significance, and development of BFT, its microbial interactions, nutritional value, transition from biofloc to copefloc, and concept of aquamimicry to sustainably improve aquaculture production.

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Using cephalopod production data from the FishStatJ database of the Food and Agriculture Organization of the United Nations, this study (1) measured the degree of development of the cephalopod fisheries in 10 major cephalopod‐producing countries; (2) classified each of the 10 fisheries according to its development level; and (3) estimated cephalopod production by the world as a whole as well as by China and Japan individually in 2017, 2018, and 2019. For objectives (1) and (2), the grey constellation cluster model was used. The results of the analysis indicate that cephalopod fisheries in the major producing countries can be roughly divided into four classes: excellent (class I), good (class II), weak (class III), and poor (class IV), with Japan, China, and South Korea being in class I; Thailand, Peru, Viet Nam, India, and Morocco being in class II; and Indonesia and Chile being in classes III and IV, respectively. The grey interval forecasting model was used for objective (3). The model estimates that cephalopod production by the world as a whole will be in the range 5.44–5.76 million metric tons (t) over the period studied and that by China in the range 1.77–1.98 million t. Both areas show rising trends, with average annual growth rates of 2.88% and 5.90%, respectively. By contrast, cephalopod production by Japan is estimated to decline from 0.24 to 0.22 million t, with an average annual growth rate of −2.82%.