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All Journal Jurnal Akuakultur Indonesia LIMNOTEK
Puji Hastuti, Yuni
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Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Engineering Environmental Science

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Effect of Light Intensity on Ammonium Removal and Biomass Growth in Different Levels of Aquaculture Effluent Using Duckweed (Lemna perpusilla) Agus Waluyo; Nirmala, Kukuh; Satya, Awalina; Puji Hastuti, Yuni; Chrismadha, Tjandra; Susanti, Evi; Sumi Lestari, Fajar; Nafisyah, Eva; Sugiarti; Nasrul, Muit
LIMNOTEK Perairan Darat Tropis di Indonesia Vol. 30 No. 2 (2024)
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/limnotek.2024.6420

Abstract

Cultivating duckweed in aquaculture effluent offers a viable approach to eliminating contaminants. The duckweed biomass obtained can be utilized for the generation of bioenergy. However, elevated levels of ammonium (NH4+) in aquaculture effluent, combined with variations in light intensity, can hinder biomass formation. The precise mechanisms underlying this inhibition remain incompletely elucidated. The study assessed the efficacy of duckweed (Lemna perpusilla) as a treatment agent for wastewater from catfish farms. The objective was to evaluate the growth response of duckweed and its efficacy in reducing ammonium levels. The research demonstrated that daily light intensity fluctuated using shade nets and that the ammonium concentration of aquaculture wastewater varied according to the age of the fish. The shade nets, which blocked 25% of the sunlight and had an average daily light intensity of 3433.34–15199.56 lux, demonstrated a slightly elevated NH4+ removal efficiency and duckweed productivity of 69.34% and 0.050 kg/m²/day, respectively. However, these values were not statistically significant when compared to conditions without shade nets, which had a removal efficiency of 63.97% and duckweed productivity of 0.042kg/m2/day (P<0.05). The implementation of shade structures that effectively decrease solar exposure by 25% shows promise for enhancing duckweed productivity and optimizing nutrient reduction in wastewater from fish cultivation systems. This approach contributes to the promotion of sustainable integrated aquaculture.
Health Status of Spiny Lobster Panulirus homarus with Sub-Mersible Net Cage System in the Different Depths at Kepulauan Seribu, DKI Jakarta Wahjuningrum, Dinamella; Effendi, Irzal; Hadiroseyani, Yani; Budiardi, Tatag; Diatin, Iis; Setiawati, Mia; Puji Hastuti, Yuni; Oman Sudrajat, Agus; Yonvitner; Sri Nuryati; Utami, Putri
Jurnal Akuakultur Indonesia Vol. 21 No. 1 (2022): Jurnal Akuakultur Indonesia
Publisher : Indonesian Society of Scientific Aquaculture (ISSA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19027/jai.21.1.68-80

Abstract

ABSTRACT Cultivation of Panulirus homarus lobster is now carried out with sub-mersible net cage system at a certain depth in order to obtain optimal temperature, light and water pressure. The purpose of this study was to evaluate the health status of the sand lobster P. homarus which was kept in sub-mersible net cage system measuring 250 cm × 272 cm × 135 cm with a depth of 6 m and 8 m in the waters of Semak Daun Island, Seribu Islands, DKI Jakarta. The average size of lobster seeds used was 93.23 ± 0.99 g/head with a density of 4 lobsters/m2. Lobsters were fed trash fish, molluscs and crustaceans, with a frequency of twice a day at 07.00 WIB 30% and 17.00 WIB 70% of the lobster biomass weight. This study used a completely randomized design with the two depth treatments mentioned above and three replications. Observations of total haemocyte count, differential haemocyte count, phenoloxidase activity, respiratory burst phagocytic activity and histology of lobster hepatopancreas were performed twice every 14 days. Based on the above observations, the depth does not affect the immune response, there is no visible damage to the cells and tissues of the lobster hepatopancreas. Keywords: haemolymph, histology, lobster cultivation, sea, sub-mersible net cage system
Production performance and water quality of Caulerpa lentillifera with fermented fruit vegetable fertilizer Supriyono, Eddy; Chrisliana, Chrisliana; Puji Hastuti, Yuni; Lila Antara, Kadek; Ee Ling, Yong; Nurussalam, Wildan
Jurnal Akuakultur Indonesia Vol. 23 No. 2 (2024): Jurnal Akuakultur Indonesia
Publisher : Indonesian Society of Scientific Aquaculture (ISSA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19027/jai.23.2.224-236

Abstract

The use of fermented vegetable and fruit waste (FVF) based fertilizers as an effort to reduce waste has the potential to be used to support aquaculture activities. This study aims to evaluate the effectiveness of Caulerpa lentillifera cultivation with the addition of fertilizer based on fruit and vegetable waste fermentation on water quality parameters and production performance. The experimental design used was a completely randomized design with three replications for four different doses of FVF fertilizer treatments, namely 0, 0.05, 0.1, and 0.2 µl/L. This study used an initial weight of 500 g which was reared in a concrete tank with a capacity of 1000 L for 30 days growth period. The results showed that the use of FVF of 0.1 µl/L gave a better net harvest weight (p<0.05), namely 0.08 ± 0.06 kg. Keywords: Caulerpa lentillifera, fermentation, fertilizer, seaweed, waste ABSTRAK Penggunaan pupuk berbasis fermentasi limbah sayur dan buah (FVF) sebagai salah satu upaya pengurangan limbah memberikan potensi sebagai larutan pendukung kegiatan budidaya. Penelitian ini bertujuan untuk mengevaluasi efektivitas budidaya Caulerpa lentillifera dengan penambahan pupuk berbasis fermentasi limbah buah dan sayur terhadap parameter kualitas air dan kinerja produksi. Rancangan percobaan yang digunakan adalah rancangan acak lengkap dengan tiga kali ulangan pada empat perlakuan pupuk, yaitu 0, 0.05, 0.1, dan 0.2 µl/L. Penelitian ini menggunakan bobot awal 500 g yang dipelihara dalam bak beton berkapasitas 1000 L. Hasil pengamatan menunjukkan bahwa penggunaan FVF sebesar 0.1 µl/L memberikan bobot panen bersih yang lebih baik (p<0.05) yaitu 0.08 ± 0.06 kg. Kata kunci: Caulerpa lentillifera, fermentasi, limbah, pupuk, rumput laut
Co-Authors Agus Oman Sudrajat Agus Waluyo Chrisliana, Chrisliana Chrismadha, Tjandra Dinamella Wahjuningrum Eddy Supriyono Ee Ling, Yong Evi Susanti Iis Diatin Irzal Effendi Kukuh Nirmala Lila Antara, Kadek Mia Setiawati Nafisyah, Eva Nasrul, Muit Putri Utami, Putri Satya, Awalina Sri Nuryati Sugiarti Sumi Lestari, Fajar Tatag Budiardi Wildan Nurussalam Y. Hadiroseyani Yonvitner -