Effect Of Macroalgae Feed Type on Abalone Growth and Survival (Haliotis squamata) on the Cultivation System Polyculture with Nemo Fish (Clownfish)

Abstract

Abalone (Haliotis squamata) or sea snails are also called awabi, mutton fish, and sea ear. Abalone cultivation (Haliotis squamata) has quite good prospects, considering that the demand for Asian markets such as Japan, China, and Singapore is increasing. The world's demand for abalone is increasing in line with the increasing need for a diversity of protein sources. In addition to abalone, other leading commodities in marine aquaculture are nemo fish (Clownfish). Nemo fish has high economic value both in the local and international markets with a wide range of market-markets such as Australia, Japan, Germany and France. Increasing the production of these two commodities can be cultivated in one container called polyculture. Polyculture is cultivation by keeping more than one type of fish or species in the same container. The application of polyculture techniques is expected to increase the carrying capacity or carrying capacity of cultivation containers. The success of polyculture will determine the growth and sustainability of abalone and nemo fish cultivation activities. This study uses an experimental method with a Complete Random Design with the treatment of macroalgae feed types consisting of 5 types, namely: This treatment was carried out with 5 treatments and 3 repetitions, namely: Gracilaria sp. (A), Ulva lactuca (B), Caulerpa (C), Kappaphycus alvarezii (D), Sargasum (E). The five types of treatments were repeated 3 times so that 15 experimental units were obtained. The results of the research that have been carried out, show that the difference in macroalgae in the maintenance of abalone mussels with nemo fish has a real influence on the growth (absolute length and absolute weight) and the survival rate of abalone mussels (Haliotis squamata) and nemo fish (Clownfish) which are the best in the maintenance with macroalgae Gracillaria sp.