Penyuluhan Teknologi Pembenihan Ikan Bandeng Untuk Mendorong Kemandirian Produksi Benih Ikan Bandeng Di Kabupaten Bima Provinsi Nusa Tenggara Barat

2020 ◽  
Vol 2 (2) ◽  
pp. 124-132
Author(s):  
Alis Mukhlis ◽  
Nadirah Karimatul Ilmi ◽  
Sanca Rahmatullah ◽  
Anita Prihatini Ilyas ◽  
Awan Dermawan

Milkfish (Chanos chanos Forskal) is one of the high economic value of brackish water fish and it has become the main commodity of brackish water fisheries for Bima Regency. Bima Bay was the center of milkfish production in Bima Regency with a pond area of around 1,612.16 Ha. Fishponds were spread in 3 (three) districts, namely Bolo sub-district covering 759.95 Ha, Woha sub-district covering 765.82 Ha, and Palibelo sub-district covering 86.39 Ha. As many as 11.41% of the total area of ponds used for milkfish enlargement throughout the year, while 88.59% used for milkfish enlargement and salt production alternately. The area of a pond was about 0.25-0.65 Ha using a stocking density of 4.000-6.000 milkfish fry/pond. The number of seeds needed for the Bima bay area was around 27.4 million per year. Even though milkfish hatchery technology has developed, the technology is not yet understood by milkfish farmers. Therefore, extension activities need to be carried out with the aim of increasing public understanding of seedling and quality of seedlings produced so that the independence of seed production in the future can be realized. Aquaculture Study Program of Vocational Program at Bima Regency of Mataram University conducted a counseling activity in Bima Regency in September 2019 with the theme is Milkfish Hatchery (Chanos chanos Forskal) Household Scale, Opportunities and Problems. It was attended by about 40 target communities, namely Milkfish Farmers in the Bima Bay area. Based on communication during counseling, there needs to be a demonstration plot for Milkfish Hatchery in Bima Regency as a place for training and learning related communities

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
John P. Unyimadu ◽  
O. Osibanjo ◽  
Joshua O. Babayemi

Investigation of the levels of organochlorine pesticides (OCPs) in fish samples was carried out to assess the contamination status of Niger River. Ten different brackish water species of fish (6 samples for each, making a total of 60) were purchased from landing sites at the Delta area of Niger River. These were Drapane africana, Mochokus niloticus, Chrysichthys nigrodigitatus, Pristipoma jubelini, Vomer septapinis, Pseudotolithus senegalensis, Mugil cephalus, Pseudotolithus elongatus, Sphyraena piscatorum, and Lutjanus goreensis. OCPs were determined using standard methods. Certified reference standards from Accustandard USA were used for the instrument calibration and quantification of OCPs. Twenty OCPs, namely, α-HCH, β-HCH, γ-HCH, δ-HCH, endrin, endrin aldehyde, endrin ketone, heptachlor, heptachlor epoxide, aldrin, dieldrin, endosulfan I, endosulfan II, endosulfan sulfate, methoxychlor, α-chlordane, γ-chlordane, DDE, DDT, and DDT, were identified/quantified using Gas Chromatography (GC) (Hewlett Packard GC 5890 series 11 with electron capture detector). Confirmation was done using Shimadzu GCMS QP2010. The highest concentration of ∑OCPs in the brackish fish samples of the Niger River, 4302±2066 µg/kg fresh weight, with a range of 2237-6368 µg/kg, was detected in Drapane africana, while the lowest concentration, 2320±876.4, with a range of 1006-3288 µg/kg, was found in Mochokus niloticus. The concentration of total OCP compounds varied markedly amongst the different fish species. The guideline value of 2000 µg/kg fresh weight by WHO/FAO was exceeded and therefore implied potential harmful effects on humans. Since contamination of the fish samples was an indication of contamination of the river, the quality of the water for public water supply should be of concern; and therefore further monitoring is suggested.


2016 ◽  
Vol 4 (1) ◽  
Author(s):  
Istiadi Istiadi ◽  
Mohammad Ridha

Laboratory of the study Program is the on factor that imfluence the quality of student in the process of theirstudy in Vocational Program . In order that, laboratory must become the crucial factor in producing qualifiedalumni.The quality of teaching ini laboratory in general was imfluenced some factors like: lecturer/instructur,curicullum, tools or su pported facilities in laboratory. For that reason, in this research we want to know thegeneral of student in laboratory teaching. Factors that was identified included : degree of studentsatisfaction, quality of teaching, and laboratory supporting facilities . Output of this research is benefited asthe input in developing the ideal office and Secretary Laboratory that sincronized with student needs.Keyword; Laboratory, quality of teaching, facility, curicullum, student satisfaction.


Author(s):  
Raveesha P ◽  
K. E. Prakash ◽  
B. T. Suresh Babu

The salt water mixes with fresh water and forms brackish water. The brackish water contains some quantity of salt, but not equal to sea water. Salinity determines the geographic distribution of the number of marshes found in estuary. Hence salinity is a very important environmental factor in estuary system. Sand is one major natural aggregate, required in construction industry mainly for the manufacture of concrete. The availability of good river sand is reduced due to salinity. The quality of sand available from estuarine regions is adversely affected due to this reason. It is the responsibility of engineers to check the quality of sand and its strength parameters before using it for any construction purpose. Presence of salt content in natural aggregates or manufactured aggregates is the cause for corrosion in steel. In this study the amount of salinity present in estuary sand was determined. Three different methods were used to determine the salinity in different seasonal variations. The sand sample collected nearer to the sea was found to be high in salinity in all methods.  It can be concluded that care should be taken before we use estuary sand as a construction material due to the presence of salinity.


Author(s):  
Fitri Nurmasari ◽  
Raup Padillah

Banyuwangi Regency is one of the agricultural centers in East Java province and Indonesia. Mostly,Banyuwangi people work as farmers due to the fertil soil and wide amount of agricultural land in Banyuwangi . Thelarge number of people who work as farmers initiating the formation of farmer groups. One of the farmer groups in theSrono sub-district of Banyuwangi is the "Tan Selo 1" farmers group located in the village of Sukomaju and the "TanSelo 2" farmers group in Sukonatar village. The normal average price of one banana bunch in Banyuwangi is between50-60 thousand depending on the type and quality of bananas. Problems arise when the quantity of bananas in the marketarose, the price of 1 bunch of bananas decreases dramatically. The price of 1 bunch which is usually set at 50-60thousand drops drastically to only 20-30 thousand. This is certainly a problem for farmers in the Tan Selo group. The lackof knowledge of Tan Selo farmers about alternative variants of processed banana based products and the lack ofknowledge of the marketing strategies make it hard for the Tan Selo farmers to increase the economic value of bananaswhich have been used as an alternative income for farmers. Therefore, the solutions offered to overcome the problems offarmers include: equipping and improving farmers' knowledge about the variety of processed banana-based foods andtheir marketing strategies, conducting training to make variations on banana-based foods, conducting training oneffective marketing strategies. Overall, a series of community service programs were carried out perfectly as it expected.The percentage of participants' understanding in choosing high quality bananas is 85%, the percentage of participants’ability in processing banana-based foods is 86%, and percentage of participants who successfully sell processed foodproducts by utilizing online shopping sites is 70%


Author(s):  
Alide M. W. Cova ◽  
Fabio T. O. de Freitas ◽  
Paula C. Viana ◽  
Maria R. S. Rafael ◽  
André D. de Azevedo Neto ◽  
...  

ABSTRACT The objective of this study was to evaluate the growth and accumulation of ions in lettuce grown in different hydroponic systems and recirculation frequencies. The experimental design was randomized blocks with 8 treatments and 4 replicates. The evaluated hydroponic systems were Nutrient Flow Technique (NFT) and an adapted Deep Flow Technique (DFT), the latter with recirculation frequencies of 0.25, 2 and 4 h. Both systems used fresh water and brackish water. Plant growth, accumulation of inorganic solutes (Na+, K+, Cl- and NO3-) and the correlation between dry matter production and Na+/K+ and Cl-/NO3- were evaluated. The salinity of the water used to prepare the nutrient solution caused decrease in growth and K+ and NO3- levels, and increased contents of Na+ and Cl- in the plants. When using fresh water the highest dry matter production was obtained in the NFT system. In case of brackish water the adapted DFT system increased the production, in relation to NFT system (at same recirculation frequency: 0.25 h). It was found that the choice of the type of hydroponic system and recirculation interval for the cultivation of lettuce depends on the quality of the water used to prepare the nutrient solution.


2006 ◽  
Vol 28 (2) ◽  
pp. 185-191 ◽  
Author(s):  
MW Parrow ◽  
M Elbrächter ◽  
MK Krause ◽  
JM Burkholder ◽  
NJ Deamer ◽  
...  

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