IOP Conference Series: Earth and Environmental Science, 2020
Intensive shrimp cultures are characterized by high stocking densities and use large quantities o... more Intensive shrimp cultures are characterized by high stocking densities and use large quantities of artificial feed. The artificial feed was consumed only a small part by shrimp, while the rest decomposes in ponds and produces inorganic nitrogen compounds such as ammonia, nitrite, and nitrate, which are poisonous to shrimp and decrease water quality. One alternative that can be applied to improve water quality in the shrimp pond is the use of bioremediation agents. One of the bioremediation agents is seaweed Gracilaria changii. The study was designed using a Completely Randomized Design consisting of three treatments, namely (A) shrimp culture without seaweed as bioremediator; (B) shrimp culture with seaweed as bioremediator in the middle of the treatment (starting from fifth week), and (C) shrimp culture with seaweed as bioremediator since the beginning of the treatment. Each treatment was repeated three times each. During the study, ammonia, nitrite, and nitrate were measured every...
IOP Conference Series: Earth and Environmental Science, 2019
This research series consisted of 4 (four) research activities, two implemented indoors at the Ce... more This research series consisted of 4 (four) research activities, two implemented indoors at the Center for Brackishwater Aquaculture (BPBAP) Takalar in July - August 2017, and two carried out in the coastal waters of Aeng Batu-Batu Village, Galesong District, Takalar Regency, South Sulawesi, Indonesia in May - July 2018. The objectives of the studies were to analyse growth and content of specific nutritional components (carotenoids, fibre, and minerals) of the seaweed Caulerpa lentillifera. The C. lentillifera cultivated indoors and in coastal waters had the same cultivation period and initial seedling weight. There were differences in C. lentillifera growth and nutritional content between the two treatments. Growth and mineral content were higher indoors; likely due to the presence of readily absorbed minerals in the substrate provided (a mixture of sand and coral fragments). Higher carotenoid and fibre content in C. lentillifera cultivated in coastal waters was likely due to carote...
The dynamics of the body nutrient content and growth in the mud crab Scylla olivacea were studied... more The dynamics of the body nutrient content and growth in the mud crab Scylla olivacea were studied as physiological response in mangrove areas. Crab farming in mangrove areas is a concept of silvofishery. The ecofriendly aquaculture began to develop. The body nutrient and growth significantly (p<0,01) influnced by density of mud crab in mangrove areas.
IOP Conference Series: Earth and Environmental Science, 2021
Feed for fattening mud crabs must not only be able to survive in water, but must also have high n... more Feed for fattening mud crabs must not only be able to survive in water, but must also have high nutritional quality. High nutritional quality has an impact on increasing feed prices, so it is necessary to improve the quality of feed while maintaining a stable price. This study evaluated the organoleptic, physical and chemical quality of mud crab feed fermented by adding various doses of mixed microorganisms which cause fermentation to the raw feed materials. The microorganism mixture doses tested were: 0, 10, 20, and 30 mL 100 g-1 of raw feed materials. Based on organoleptic feed data (appearance, texture, aroma, and feed colour), physical data (water stability, including speed of breakdown and solids dispersion, hardness level, and sinking speed) and feed nutritional or chemical tests (protein, fat, nitrogen-free extract, crude fibre, ash, and water content, as well as the dry and organic matter digestibility percentages) it can be concluded that the microorganism mixture can be us...
Indonesian shrimp farming was intensively conducted on period of 1980‟s. However, in the late 199... more Indonesian shrimp farming was intensively conducted on period of 1980‟s. However, in the late 1990s, there was a big harvest failure on several Indonesian ponds. The failure caused by the quality of the water was decrease that triggering disease epidemic. One solution to the problem is plant bioremediation using algae or commonly named phytoremediation. This study aimed to determine the effectiveness of Gracilaria sp. as bioremediator for the N and P changes in vanname shrimp culture (Litopenaeus vannamei). This study was conducted in October to December 2013. Seaweed Gracilaria sp. was taken from one of the farmer in Takalar Regency, while the shrimp (Litopenaeus vannamei) was taken from one of farmer in Pangkep Regency. Treatment and experimental research was designed using a Completely Randomized Design (CRD) consisting of three treatments and respectively three replicates. Parameters that statistically tested were the values of nitrogen and phosphate in seaweed and in the water ...
Produksi udang vaname di Indonesia mengalami perkembangan yang pesat dalam satu dasa warsa terakh... more Produksi udang vaname di Indonesia mengalami perkembangan yang pesat dalam satu dasa warsa terakhir. Salah satu masalah pokok dalam budidaya udang vaname di tambak adalah tingginya penggunaan pakan buatan. Penelitian ini bertujuan untuk mengkaji kombinasi dosis dan frekuensi pemberian pakan terhadap rasio konversi pakan (FCR) pada budidaya udang vaname di tambak. Juvenil udang vaname dipelihara di dalam hapa berukuran 1 m x 1 m x 1 m yang ditempatkan di dalam tambak. Pakan yang digunakan adalah pakan dengan sumber karbohidrat tepung jagung yang disubstitusi dengan tepung ubi jalar sebanyak 50%. Rancangan penelitian yang digunakan adalah Rancangan Acak Lengkap pola Faktorial. Faktor pertama adalah dosis 3%, 6% dan 9% dan faktor kedua frekuensi pemberian pakan 3, 4 dan 5 kali per hari. Setiap kombinasi perlakuan diberi ulangan masing-masing 3 kali sehingga jumlah satuan percobaan sebanyak 27 unit. Pemeliharaan udang dilakukan selama 8 minggu. Hasil penelitian menunjukkan perlakuan yan...
Indonesian shrimp farming was intensively conducted on period of 1980‟s. However, in the late 199... more Indonesian shrimp farming was intensively conducted on period of 1980‟s. However, in the late 1990s, there was a big harvest failure on several Indonesian ponds. The failure caused by the quality of the water was decrease that triggering disease epidemic. One solution to the problem is plant bioremediation using algae or commonly named phytoremediation. This study aimed to determine the effectiveness of Gracilaria sp. as bioremediator for the N and P changes in vanname shrimp culture ( Litopenaeus vannamei ). This study was conducted in October to December 2013. Seaweed Gracilaria sp. was taken from one of the farmer in Takalar Regency, while the shrimp ( Litopenaeus vannamei ) was taken from one of farmer in Pangkep Regency. Treatment and experimental research was designed using a Completely Randomized Design (CRD) consisting of three treatments and respectively three replicates. Parameters that statistically tested were the values of nitrogen and phosphate in seaweed and in the wa...
This research aims to determine the type of substrate suitable for seaweed spores Kappaphycus alv... more This research aims to determine the type of substrate suitable for seaweed spores Kappaphycus alvarezii attachment. This research was conducted on February-April 2014, at Mini Hatchery of Marine Science and Fishery Faculty, Hasanuddin University, Makassar. The substrates used were large-mesh size net, dacrone, and small-mesh size net. The experimental design used in this research was a Complete Randomized Design (CRD) with three different substrate treatments and five replications. The variables observed were the spores and plantlets development and thallus weight. Data were analyzed using analysis of variance (ANOVA), continued with W-Tukey test. The results showed that spore on dacrone substrate produce the highest average weight than others. In addition, thallus with dacrone substrate had shown the best development than the others. Keywords: Kappaphycus alvarezii , spores, thallus, substrate.
International journal of scientific and research publications, 2019
Mud crab is one of aquatic organisms occupying mangrove ecosystem that has high economic value an... more Mud crab is one of aquatic organisms occupying mangrove ecosystem that has high economic value and potential for cultivation with Silvofishery system. The current study was conducted in the mangrove areas of Mandalle Village, Pangkep Regency, South Sulawesi Province. This study was aimed to compare the growth rate and the chemical composition of the body of mud crab (Scylla olivacea) that cultured with Silvofishery system on a variety of mangrove vegetation. The experimental container used an embedded cage made from bamboo with length, width and height of 1.5 x 1.5 x 1.5 m each. Tested animal used was mud crab (S. olivacea) collected from Pallime Village, Cenrana Subdistrict, Bone Regency, South Sulawesi Province with weight of 155±10 gram and cultured for 40 days. The study consisted of three treatments with five replications each. The three genera of mangrove vegetation used were Avicennia, Rhizophora, and Sonneratia. The collected data were analyzed using non-parametric statistic...
Cultivation of mangrove crabs for fattening can be carried out in mangrove area or known as a sil... more Cultivation of mangrove crabs for fattening can be carried out in mangrove area or known as a silvofishery system. This study aimed to determine the best types of feed for mangrove crab (Scylla olivacea) fattening which cultivated in the mangrove area. The research was conducted in the mangrove area of Pangkep Regency, South Sulawesi Province, Indonesia. The experimental animal used was male mangrove crabs (S. olivacea) with a weight of 250±10 g. The container used was a confinement that made from bamboo with length, width, and height of 1.0 x 1.0 x 1.0 m respectively, and placed in the mangrove area. Four types of feed used referred to treatment with a dose of 10% of crab’s body weight. The frequency of feeding was twice per day namely in the morning by 30% and in the afternoon 70%. The study used a complete randomized design (CRD) consisting of 4 treatments and 3 replications. The different types of feed used were: (A) trash fish, (B) mujair fish, (C) oysters, and (D) rice field s...
IOP Conference Series: Earth and Environmental Science, 2020
Intensive shrimp cultures are characterized by high stocking densities and use large quantities o... more Intensive shrimp cultures are characterized by high stocking densities and use large quantities of artificial feed. The artificial feed was consumed only a small part by shrimp, while the rest decomposes in ponds and produces inorganic nitrogen compounds such as ammonia, nitrite, and nitrate, which are poisonous to shrimp and decrease water quality. One alternative that can be applied to improve water quality in the shrimp pond is the use of bioremediation agents. One of the bioremediation agents is seaweed Gracilaria changii. The study was designed using a Completely Randomized Design consisting of three treatments, namely (A) shrimp culture without seaweed as bioremediator; (B) shrimp culture with seaweed as bioremediator in the middle of the treatment (starting from fifth week), and (C) shrimp culture with seaweed as bioremediator since the beginning of the treatment. Each treatment was repeated three times each. During the study, ammonia, nitrite, and nitrate were measured every...
IOP Conference Series: Earth and Environmental Science, 2019
This research series consisted of 4 (four) research activities, two implemented indoors at the Ce... more This research series consisted of 4 (four) research activities, two implemented indoors at the Center for Brackishwater Aquaculture (BPBAP) Takalar in July - August 2017, and two carried out in the coastal waters of Aeng Batu-Batu Village, Galesong District, Takalar Regency, South Sulawesi, Indonesia in May - July 2018. The objectives of the studies were to analyse growth and content of specific nutritional components (carotenoids, fibre, and minerals) of the seaweed Caulerpa lentillifera. The C. lentillifera cultivated indoors and in coastal waters had the same cultivation period and initial seedling weight. There were differences in C. lentillifera growth and nutritional content between the two treatments. Growth and mineral content were higher indoors; likely due to the presence of readily absorbed minerals in the substrate provided (a mixture of sand and coral fragments). Higher carotenoid and fibre content in C. lentillifera cultivated in coastal waters was likely due to carote...
The dynamics of the body nutrient content and growth in the mud crab Scylla olivacea were studied... more The dynamics of the body nutrient content and growth in the mud crab Scylla olivacea were studied as physiological response in mangrove areas. Crab farming in mangrove areas is a concept of silvofishery. The ecofriendly aquaculture began to develop. The body nutrient and growth significantly (p<0,01) influnced by density of mud crab in mangrove areas.
IOP Conference Series: Earth and Environmental Science, 2021
Feed for fattening mud crabs must not only be able to survive in water, but must also have high n... more Feed for fattening mud crabs must not only be able to survive in water, but must also have high nutritional quality. High nutritional quality has an impact on increasing feed prices, so it is necessary to improve the quality of feed while maintaining a stable price. This study evaluated the organoleptic, physical and chemical quality of mud crab feed fermented by adding various doses of mixed microorganisms which cause fermentation to the raw feed materials. The microorganism mixture doses tested were: 0, 10, 20, and 30 mL 100 g-1 of raw feed materials. Based on organoleptic feed data (appearance, texture, aroma, and feed colour), physical data (water stability, including speed of breakdown and solids dispersion, hardness level, and sinking speed) and feed nutritional or chemical tests (protein, fat, nitrogen-free extract, crude fibre, ash, and water content, as well as the dry and organic matter digestibility percentages) it can be concluded that the microorganism mixture can be us...
Indonesian shrimp farming was intensively conducted on period of 1980‟s. However, in the late 199... more Indonesian shrimp farming was intensively conducted on period of 1980‟s. However, in the late 1990s, there was a big harvest failure on several Indonesian ponds. The failure caused by the quality of the water was decrease that triggering disease epidemic. One solution to the problem is plant bioremediation using algae or commonly named phytoremediation. This study aimed to determine the effectiveness of Gracilaria sp. as bioremediator for the N and P changes in vanname shrimp culture (Litopenaeus vannamei). This study was conducted in October to December 2013. Seaweed Gracilaria sp. was taken from one of the farmer in Takalar Regency, while the shrimp (Litopenaeus vannamei) was taken from one of farmer in Pangkep Regency. Treatment and experimental research was designed using a Completely Randomized Design (CRD) consisting of three treatments and respectively three replicates. Parameters that statistically tested were the values of nitrogen and phosphate in seaweed and in the water ...
Produksi udang vaname di Indonesia mengalami perkembangan yang pesat dalam satu dasa warsa terakh... more Produksi udang vaname di Indonesia mengalami perkembangan yang pesat dalam satu dasa warsa terakhir. Salah satu masalah pokok dalam budidaya udang vaname di tambak adalah tingginya penggunaan pakan buatan. Penelitian ini bertujuan untuk mengkaji kombinasi dosis dan frekuensi pemberian pakan terhadap rasio konversi pakan (FCR) pada budidaya udang vaname di tambak. Juvenil udang vaname dipelihara di dalam hapa berukuran 1 m x 1 m x 1 m yang ditempatkan di dalam tambak. Pakan yang digunakan adalah pakan dengan sumber karbohidrat tepung jagung yang disubstitusi dengan tepung ubi jalar sebanyak 50%. Rancangan penelitian yang digunakan adalah Rancangan Acak Lengkap pola Faktorial. Faktor pertama adalah dosis 3%, 6% dan 9% dan faktor kedua frekuensi pemberian pakan 3, 4 dan 5 kali per hari. Setiap kombinasi perlakuan diberi ulangan masing-masing 3 kali sehingga jumlah satuan percobaan sebanyak 27 unit. Pemeliharaan udang dilakukan selama 8 minggu. Hasil penelitian menunjukkan perlakuan yan...
Indonesian shrimp farming was intensively conducted on period of 1980‟s. However, in the late 199... more Indonesian shrimp farming was intensively conducted on period of 1980‟s. However, in the late 1990s, there was a big harvest failure on several Indonesian ponds. The failure caused by the quality of the water was decrease that triggering disease epidemic. One solution to the problem is plant bioremediation using algae or commonly named phytoremediation. This study aimed to determine the effectiveness of Gracilaria sp. as bioremediator for the N and P changes in vanname shrimp culture ( Litopenaeus vannamei ). This study was conducted in October to December 2013. Seaweed Gracilaria sp. was taken from one of the farmer in Takalar Regency, while the shrimp ( Litopenaeus vannamei ) was taken from one of farmer in Pangkep Regency. Treatment and experimental research was designed using a Completely Randomized Design (CRD) consisting of three treatments and respectively three replicates. Parameters that statistically tested were the values of nitrogen and phosphate in seaweed and in the wa...
This research aims to determine the type of substrate suitable for seaweed spores Kappaphycus alv... more This research aims to determine the type of substrate suitable for seaweed spores Kappaphycus alvarezii attachment. This research was conducted on February-April 2014, at Mini Hatchery of Marine Science and Fishery Faculty, Hasanuddin University, Makassar. The substrates used were large-mesh size net, dacrone, and small-mesh size net. The experimental design used in this research was a Complete Randomized Design (CRD) with three different substrate treatments and five replications. The variables observed were the spores and plantlets development and thallus weight. Data were analyzed using analysis of variance (ANOVA), continued with W-Tukey test. The results showed that spore on dacrone substrate produce the highest average weight than others. In addition, thallus with dacrone substrate had shown the best development than the others. Keywords: Kappaphycus alvarezii , spores, thallus, substrate.
International journal of scientific and research publications, 2019
Mud crab is one of aquatic organisms occupying mangrove ecosystem that has high economic value an... more Mud crab is one of aquatic organisms occupying mangrove ecosystem that has high economic value and potential for cultivation with Silvofishery system. The current study was conducted in the mangrove areas of Mandalle Village, Pangkep Regency, South Sulawesi Province. This study was aimed to compare the growth rate and the chemical composition of the body of mud crab (Scylla olivacea) that cultured with Silvofishery system on a variety of mangrove vegetation. The experimental container used an embedded cage made from bamboo with length, width and height of 1.5 x 1.5 x 1.5 m each. Tested animal used was mud crab (S. olivacea) collected from Pallime Village, Cenrana Subdistrict, Bone Regency, South Sulawesi Province with weight of 155±10 gram and cultured for 40 days. The study consisted of three treatments with five replications each. The three genera of mangrove vegetation used were Avicennia, Rhizophora, and Sonneratia. The collected data were analyzed using non-parametric statistic...
Cultivation of mangrove crabs for fattening can be carried out in mangrove area or known as a sil... more Cultivation of mangrove crabs for fattening can be carried out in mangrove area or known as a silvofishery system. This study aimed to determine the best types of feed for mangrove crab (Scylla olivacea) fattening which cultivated in the mangrove area. The research was conducted in the mangrove area of Pangkep Regency, South Sulawesi Province, Indonesia. The experimental animal used was male mangrove crabs (S. olivacea) with a weight of 250±10 g. The container used was a confinement that made from bamboo with length, width, and height of 1.0 x 1.0 x 1.0 m respectively, and placed in the mangrove area. Four types of feed used referred to treatment with a dose of 10% of crab’s body weight. The frequency of feeding was twice per day namely in the morning by 30% and in the afternoon 70%. The study used a complete randomized design (CRD) consisting of 4 treatments and 3 replications. The different types of feed used were: (A) trash fish, (B) mujair fish, (C) oysters, and (D) rice field s...
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