Estimation of organic waste and waters carrying capacity for lobster cage culture development in North Lombok District, West Nusa Tenggara Province

Junaidi, Muhammad and Nurliah, Nurliah and Azhar, Fariq and Diniarti, Nanda and Lumbessy, Salnida Y (2019) Estimation of organic waste and waters carrying capacity for lobster cage culture development in North Lombok District, West Nusa Tenggara Province. AACL Bioflux, 12 (6). pp. 2359-2370. ISSN 1844–9166

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Lobster cultivation has prospects to be developed in North Lombok waters, West Nusa Tenggara Province. In addition to being profitable, lobster farming also has the potential to produce waste that can obstruct the sustainability of the aquaculture activity itself. The study of estimation of organic waste from lobster farming activities and anthropogenic waste was carried out to obtain information on the carrying capacity of waters for the development of lobster culture. This research was conducted in May 2018 and May until August 2019. This study used the survey method. Data collected includes primary data and secondary data. Measurement of water quality parameters was carried out at twenty-three observation points in situ for temperature, salinity, pH, dissolved oxygen, brightness, turbidity, and pH, also laboratory analysis for nitrate, ammonia, and phosphate. The estimation of a waste load from aquaculture activities refers to the mass balance model based on data from proximate analysis of feed, feed digestibility, nutrient retention, feed conversion ratio, fish biomass production, and total organic particles. Estimation of carrying capacity refers to the total nitrogen load, both from lobster culture and anthropogenic activities. The results of the study indicate that the waters of North Lombok are potential areas for the development of marine culture because of the condition of water quality in a standard threshold of sea quality. Lobster cultivation in floating net cages (FNCs) for 6 months produced waste including 213.58 kg of N and 44.07 kg of P entering the waters and anthropogenic waste including 185 62.00 kg of N and 88 793.96 kg of P. Based on the N waste load approach, the carrying capacity of the environment in North Lombok waters for the development of lobster culture in floating net cages is 2 276 FNC units. If the productivity of 1 unit of KJA in one lobster maintenance cycle for 6 months is 0.17 tons, then the optimal production of lobster is 386.80 tons.

Item Type: Article
Keywords (Kata Kunci): organic waste, carrying capacity, spiny lobster cage culture, development, water quality.
Subjects: S Agriculture > SH Aquaculture. Fisheries. Angling
Divisions: Program Studi Perairan
Depositing User: Dr.Ir. Muhammad Junaidi
Date Deposited: 28 May 2022 04:05
Last Modified: 28 May 2022 04:05

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