Tropical Wetland Journal (TWJ)
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AN ANALYSIS ON FISHERY CAPTURE LICENSING TOWARD THE REGISTRATION AND MARKING OF FISH-TRANSPORTING VESSELS WITHIN THE SOUTH KALIMANTAN PROVINCE AUTHORITY
Full text linkThis study aimed to (1) identify the distribution of fish-transporting vessels under the authority of South Kalimantan Province; (2) to analyze the causes of unregistered and unmarked fish-transporting vessels within the provincial authority; and (3) to analyze the causes of fishery capture licensing that continues to run without a Fishing Vessel Book (Buku Kapal Perikanan – BKP). This research activity was conducted at the Banjarmasin Fishing Port, Pelambuan Village, Banjarmasin Barat District, Banjarmasin City, South Kalimantan, with the fish-transporting vessel’s owners within the South Kalimantan authority as the research object. The data collected were the data sourced directly from the observation result in the research location, and other supporting data related to the research object. The results showed that the spreading of fish-transporting vessels that land their cargo at the Banjarmasin Fishing Port were found in Kotabaru Regency, Tanah Bumbu Regency, Tanah Laut Regency, Banjar Regency, Barito Kuala Regency, and Banjarmasin City. Based on the data, there are 183 fish-transporting vessels within South Kalimantan Province authority, but only 42 vessels or 23% ships that are registered as fishing vessels. While for the marking of the vessels, 100% have not carried out marking as fishing vessels. This is due to the unavailability of a standard BKP and the lack of understanding from the vessel owners. The Licensing of Fishery Capture in the form of SIUP and SIKPI is still issued by BPTSP using only recommendation from Department of Fisheries and Maritime Affairs of South Kalimantan Province. The registration and marking of fish-transporting vessels of South Kalimantan Province Authority are not optimal due to the unavailability of a standard BKP that can be used as collateral so that a policy is needed from the local government in terms of budgeting funds for the procurement of BKP so that fish-transporting vessels in South Kalimantan Province can be registered and marked as Indonesian fishing vessels
RESISTANCE OF LOCAL BANANA VARIETIES TO FUSARIUM WILT DISEASE
Full text linkFusarium wilt is one of the important banana diseases that lead to low quality and quantity of banana production. The objective of this study was to examine and study the resistance of some local banana varieties to fusarium wilt. Pathogens were isolated from the weevil of kepok banana (saba banana) that showed severe symptoms of Fusarium wilt. The inoculum was prepared by propagating the pathogens on Potato Dextrose Agar (PDA) medium. Inoculation was carried out using mycelium fragment suspension (12 mg hyphae mL-1 tween 20 0.05%). The roots of the two-week Ambon banana were injured and immersed in the suspension. Pathogens were determined using Koch\u27s postulates. The varieties tested were seven (7) local banana varieties grown in South Kalimantan. Levels of resistance were determined based on the scale of Leaf Symptom Index (LSI). The pathogens were identified as Fusarium oxysporum f.sp. cubense. The results showed that there were differences in the levels of resistance; Kepok banana (highly susceptible); yellow Ambon, Awa, Susu, Mahuli and Talas bananas (susceptible), and Manggala banana (tolerant)
THE POTENTIAL OF KALANGKALA (Litsea angulata) SEED EXTRACT AS A NATURAL SPERMICIDE MATERIAL
Full text linkKalangkala (Litsea angulata) is one of the endemic plants in the wetlands area in Kalimantan which seeds are can reduce the quality of male mice spermatozoa such as motility and mobility. The purpose of this research is to know the potential of kalangkala seed extract on other parameters of spermatozoa quality, which are viability and morphology of male mice spermatozoa in an effort to obtain natural spermicide material. This research used five treatments by using twentyfive male mice. The design of this research was spermatozoa suspensions without being treated (Control = 0), spermatozoa suspensions +Na-CMC 0,5% (P1), spermatozoa suspensions + extract of kalangkala seed 0,1% (P2), spermatozoa suspensions + extract of kalangkala seed 0,3% (P3), and spermatozoa suspensions + extract of kalangkala seed 0,5% (P4), with five repititions for each treatment. The result of this research showed that the kalangkala seed extract reduce the percentage of viability of spermatozoa and increased the percentage of abnormal morphology of spermatozoa male mice. Therefore, kalangkala seed extract has potential as a natural spermicide
PLANKTON COMMUNITY STRUCTURE ON FISH PONDS IN THE RIAM KANAN RIVER OF BANJAR REGENCY
Full text linkAquaculture in Riam Kanan river receives watersupply from rivers and Riam Kanan reservoir from upstream to downstream and practices different irrigation and fertilization systems. This study was aimed to compare the plankton community structure, to find out the physicalchemical parameters associated with the abundance of plankton and the fertility of the fish-farming ponds. The research was conducted at Mandiangin Freshwater Aquaculture Center (Balai Budidaya Air Tawar – BBAT), Karang Intan (Balai Benih dan Induk Ikan Air Tawar – BB-IAT) and Cindai Alus Minapolitan area by using the observation method. Water samples were taken by composite of 6 replicates at 12 stations. The parameters measured were temperature, visibility, pH, iron, free ammonia, nitrate, phosphate, DO, BOD and plankton analysis. Data were tested statistically with cluster, Pearson correlation and regression. The result shows that there are differences in plankton community structure in the fish ponds, shown by 5 cluster groups. The abundance of phytoplankton has a significant correlation with pH, temperature, DO, and free ammonia. The abundance of zooplankton also has a significant correlation with pH, DO, BOD, and free ammonia. The seed pond at BBAT Mandiangin is eutrophically dominated by Bacillarophyta and Amoboezoa, while in BB-IAT Karang Intan and Cindai Alus are dominated by Cyanophyta and Rotifera. The inlet channel of BB-IAT Karang Intan and the broodstock pond belong to mesotrophic category, predominance by Cyanophyta, Chlorophyta and Rotifer. BBIAT Karang Intan outlet ponds, BBAT Mandiangin inlet channel and Cindai Alus inlet pond are included in the oligotrophic category, predominance by Cyanophyta and Chlorophyta. Plankton community structure of the fishfarming pond varies even with the same ecological conditions
CHARACTERISTICS PHYSICAL PROPERTIES OF SOIL FOR CONSERVATION POND PLANNING IN KECAMATAN LIANG ANGGANG PEATLANDS
Full text linkPeatland fires in 2015 that hit 23 of 33 provinces in Indonesia is one of the worst fires in history. South Kalimantan is one of the 23 provinces with the burned land area of 19.179,9 hectares. Peatland burning in Banjarbaru and of Banjar Regency which totaled 1.536 fire point burning with a land area of approximately 1.500 hectares. The main factor of this land fires is of decreased water level in the peat land. Therefore, to overcome that fires will not happen again by creating a conservation pond to hold water, especially during the rainy season in order to keep moist peat. The planning an peat land conservation in this area of 900 hectares. Peat ecosystem restoration can be done through the realignment of hydrological function where peat dome as a long-term water storage. The purpose of the research is to knowing the state of the physical properties soil for conservation pond made and knowing the condition of the ground water level in the field. From the results of an investigation soil physical properties obtained peat has not undergone recast and the number of pores in the soil are very large so that the soil becomes porous with a high water level conditions
A STUDY OF URBAN WATER DEMAND IN SOUTH KALIMANTAN PROVINCE
Full text linkThis research projected the citizens and water demand in 13 regencies/cities in South Kalimantan Province from 2013 to the next 20 years. The results of the project were compared with the intake capacity to meet the demand in upcoming years. In projecting the population growth, five methods were used, namely aritmethic method, geometric method, linier regression method, exponential method and logarithmic method. The most appropriate method for projecting the population growth is the method which has the minimum value of standard deviation and the correlation value close to 1. Water demand was calculated based on some factors, such as the average water demand, the maximum level of water demand, and the water demand at peak hours. The existing intake capacity was then compared with the water demand projection. In almost all PDAM (Munipical Tap Water Company) observed, the capacity of water processing installation could not fullfill the water demand at the peak hours. The adequate intake capacity of PDAM was only in Balangan regency and Banjarmasin city
BUSINESS PROSPECT OF THE TILAPIA HATCHERIES BY STANDARD OPERATING PROCEDURE APPLICATION OF GOOD HATCHERY PRACTICES (GHP) IN BANJAR REGENCY SOUTH KALIMANTAN
Full text linkThis research aimed to (1) analyze the profit of the tilapia hatchery business in Banjar Regency with GHP application and comparing it with the profit before it applied GHP; and (2) to analyze the investment feasibility of the tilapia hatchery business with GHP application in Banjar Regency. This research was carried out in the Karang Intan District, Banjar Regency, South Kalimantan, with the community GHP certified hatchery units as the object. The collected data was the data that directly originated from observation results in the location of the research, and other supporting data, which related to the object of the research. The results of the research showed that by applying GHP, the tilapia hatchery business gave more profit than before applying it. By applying GHP, the tilapia hatchery business developed very profitably and feasible to be carried on. The result of investment feasibility analysis showed that the NPV was positive, the Net BCR was more than 1, the IRR was more than discounted rate, and the period of the return of investment was faster than the project period
STRUCTURE, CONDUCT, AND PERFORMANCE OF NUCLEUS ESTATE AND SMALLHOLDER (NES) SCHEME IN OIL PALM SECTOR IN SOUTH KALIMANTAN
Full text linkThe purpose of this study was to analyze the structure, conduct, and performance of the nucleus estate and smallholder (NES) scheme in oil palm sector. The results showed that the conduct of partners in partnership generally was in accordance with the functions/tasks, rights and obligations regulated by the local government on the the nucleus estate and smallholder oil palm project. The market structure tended to be not competitive and the partnership system with the nucleus estate and smallholder (NES) scheme did not provide similar profits where the bargaining position of plasma farmers (smallholders) was relatively lower compared with that of the business partners (nucleus estates). Non-competitive market structure did not affect the transaction mechanism of Fresh Fruit Bunches (FFB) products from plasma plantations to necleus estates
LITTER DECOMPOSITION IN Rhizophora sp. MANGROVE STANDS OF VARYING PLANTING AGES
Full text linkInformation about litter decomposition in Rhizophora Sp. mangrove stands of different planting ages is very important to find out the main factors affecting the whole information on structure and function of mangrove ecosystem and to improve mangrove management in the future. The objective of this study was to determine the litter decomposition in Rhizophora sp. mangrove stands of varying planting ages, with a case study in Subang Regency, West Java Province. Comparisons of litter decomposition were taken from five stands of planting ages (4 years, 12 years, 21 years, 29 years, and 38 years old). Four parameters of litter decomposition compared were dry weight of litter, decomposition rate, litter decomposition coefficient, and half-life time. The observation on Rhizophora Sp. mangrove stands was conducted in three plots of 10 m x 10 m. The results show that the litter decomposition parameters, especially dry weight of litter, decomposition rate, litter decomposition coefficient, and half-life time, were different on each planting age of Rhizophora sp. mangrove stands. The fastest time for litter decomposition was found in 12 years old of Rhizophora Sp. stands with the achievement for 90 days of observation and the decomposition efficiency of 100%. Meanwhile, the slowest was found in 38 years old of Rhizophora Sp. mangrove stands with more than 120 days, and the litter decomposition efficiency was about 97.84%. Environmental conditions (soil and water conditions, nitrogen content, and soil fauna) play a major role on its differentiation. It can be concluded that the litter decomposition in Rhizophora sp. mangrove stands of varying planting ages change over time because of the environmental conditions, but the complexity of the relation between ages is not always apparent
ADDITION OF WHITE SHRIMP (Penaeus merguiensis) HEAD EXTRACT TO INCREASE PROTEIN CONTENT IN SHRIMP STICKS
Full text linkThe objective of this study was to obtain a proper ratio between the volume of water and the weight of shrimp heads in order to increase the protein content in shrimp sticks. The design used in the study was a completely randomized design (CRD) with treatment groups of 1:1, 1:2, and a control group without the addition of shrimp head extract. Water content, protein content, ash content and organoleptic test were the parameters measured. The results of the study show that the addition of white shrimp head extract in the treatment group with a 1: 1 ratio produced shrimp sticks with a protein content of 12.22%; in the treatment group with a 1: 2 ratio 13.44%; and in the control group without the addition of shrimp head extract only 5.54%. The addition of shrimp head extract also produced more preferred flavor compared to the one without the addition of the extract