AquaMarine (Jurnal FPIK UNIDAYAN )

Studi Budidaya Rumput Laut

Wardha Jalil

Abstrak

Penggunaan Ekstrak Bawang Putih (Allium sativum) Dengan Dosis Berbeda Terhadap Kelulusan Hidup Ikan Nila (Oreochromis niloticus) Yang Diinfeksi Bakteri Aeromonas hydrophila

Budiyanti, Wa Ode Safia, Saptari Joan Tatra, Arif Nurhidayat, Windu Sukendar — Fri, 01 Apr 2022 00:00:00 +0800

Tilapia is one of the aquaculture commodities that has a fairly high market prospect. The tilapia farming business is developing intensively, causing changes in the environment of cultivated land due to high pollution and mishandling of cultivation, including the inefficient use of feed, which triggers disease problems. One type of bacteria that is very dangerous and often attacks fish such as gourami, carp, mooring fish as well as catfish, such as catfish and catfish is Aeromonas hydrophylla. Treatment with the use of folk remedies is still lacking. For this reason, it is necessary to find natural ingredients that are suitable for eradicating or controlling these bacteria, one of which is using garlic (Allium sativum) which is environmentally friendly and cheap. This study aims to determine the effectiveness of Garlic extract in inhibiting the attack of Aeromonas sp bacteria on tilapia (Oreochromis niloticus). The method used is a Complete Randomized Design (RAL) with 4 (four) treatments and 3 (three) tests, namely treatment A (Concentration 30 ml), treatment B (Concentration 40 ml), treatment C (Concentration 50 ml), and treatment D (Concentration 0 ml). As supporting data, behavioral observations were carried out, measurements of survival rates and water quality parameters. Data analysis using fingerprint analysis (Anova). If it is significantly different, it is continued with a tukey test at the level of α= 0.05. The results showed that the difference in the dosage of Garlic extract in inhibiting the growth of Aeromonas sp bacteria. on tilapia (Oreochromis niloticus) does not exert a noticeable influence.

Pertumbuhan dan Tingkat Kelangsungan Hidup Ikan Nila (Oreochromis Niloticus) dengan POC NASA dan Tepung Ampas Tahu dalam Pakan

Tamar Mustari — Sat, 01 Apr 2023 00:00:00 +0800

NASA POC is a liquid organic fertilizer that contains macro and micro nutrients, growth regulators and soil microorganisms. Because of this, NASA POC can be used as a raw material for feed to increase fish growth. Another local feed raw material that has high nutritional value and is relatively cheap and easy to obtain is tofu dregs flour. Purposeful research determine the growth and survival of tilapia when using Nasa POC and tofu dregs flour at different doses. This research was conducted for 8 weeks at the FPIK Research Ponds, Dayanu Ikhsanuddin University. The maintenance containers are made of 12 pieces of 18 liter plastic which are equipped with aeration. The test organism used tilapia (Oreochromis niloticus) seeds measuring 5-7 cm and weighing 5-6 grams originating from local fish farming ponds, with a density of 10 fish/container. The study used a completely randomized design with 4 treatments and 3 replications, namely A (0 ml POC Nasa and 0% tofu dregs flour), B (30 ml POC Nasa and 25% tofu dregs flour), C (20 ml POC Nasa and 30% flour tofu dregs), D (10 ml POC Nasa and 35% tofu dregs flour). The results showed that the use of POC Nasa and tofu dregs had an effect on the growth of tilapia (O. niloticus) (P<0.05). The highest absolute growth was in C treatment (20 ml POC Nasa and 30% tofu dregs flour) namely 7.91 ± 0.30 gr, and the lowest was in B treatment (30 ml POC Nasa and 25% tofu dregs flour) namely 6.11 ± 0.15 gr. The highest specific growth (% per day) was in C treatment (20 ml POC Nasa and 30% tofu dregs flour) namely 1.64 ± 0.06, and the lowest was in B treatment (30 ml POC Nasa and 25% tofu dregs flour) namely 1 .38±0.06. The survival rate for all treatments was 100%.

Pemetaan Parameter Oseanografi Kawasan Budidaya Rumput Laut di Perairan Kadia Liya Kabupaten Wakatobi

Alim Setiawan, Ihsan, Edyar Simon — Mon, 01 Nov 2021 00:00:00 +0800

Kadia Liya is one of the seaweed-producing areas in Wakatobi Regency, Southeast Sulawesi Province. Seaweed farming activities in this area continue to grow. The development of aquaculture activities continues to grow because it is influenced by fairly good water conditions. Remote sensing mapping technology is the best alternative for monitoring the condition of oceanographic parameters on a regional scale. This study aims to map oceanographic parameters including salinity, dissolved oxygen, and acidity in the Kadia Liya seaweed cultivation area, Wakatobi Regency, sampling has been carried out at 20 station points spread across the cultivation area. The satellite imagery used is the Sentinel-2A satellite imagery. The method used in data processing is the interpolation method used, namely Inverse Distance Weighting (IDW) using the ArcGIS 10.8 application. The results of observations of water conditions include salinity with a range between 30.3 - 37.1 per mile (‰), dissolved oxygen (DO) which is 4.7 mg / l - 9.5 mg / l, and acidity (pH) which is 6.0 - 8.5. In general, the condition of oceanographic parameters such as salinity, dissolved oxygen, and acidity at the research site is still relatively suitable for seaweed cultivation activities.

Pengurangan Konsentrasi Amoniak Pada Budidaya Ikan Nila (Oreochromis niloticus) dengan memanfaatkan Karbon Aktif Kulit Pisang Kepok (Musa Acuminate L.) Pada Sistem Resirkulasi

Arfan Afandi, Supasman Emu, Thion Tifani — Sat, 01 Apr 2023 00:00:00 +0800

The success of the aquaculture business is closely related to the optimum environmental conditions for the survival and growth of the fish being reared, so it is necessary to improve the aquatic environment. One of the filters that can be used to purify water is by utilizing activated carbon from kapok banana peels. Banana peels contain pectin and cellulose. The purpose of this study was to determine the effect of various uses of activated carbon from kapok banana skin (Musa acuminate L.) with different doses as a filter in a recirculation system on ammonia concentrations in tilapia (Oreochromis niloticus) aquaculture. The fish-rearing containers used were basins with a diameter of 50 cm and a height of 30 cm, totaling 12 pieces, while the filter containers in the form of PVC with a diameter of 3” were 12 pieces. 120 test organisms were used with a size of 5-7 cm. Feeding with a protein content of 25-30% is carried out 2 times a day at 08.00 and 16.00 WITA with a dose of 5% of body weight. This study used a completely randomized design (CRD) with 4 treatments and 3 replications, namely Treatment A (Usual Filtration), Treatment B (Filtration using activated carbon of kapok banana peels as much as 5 g), Treatment C (Filtration using activated carbon of kapok banana peels as much as 10 g) and Treatment D (Filtration using 15g of kapok banana skin activated carbon). The use of activated carbon in kapok banana peels can reduce ammonia levels and increase the survival rate in tilapia cultivation when compared to without the use of activated carbon in kapok banana peels.