bluuebunny/crossref_metadata_2025_split huggingface dataset:
HABITAT QUALITY MUD CRAB (Scylla serrata) IN MANGROVE ECOSYSTEM OF BINTAN BAY, BINTAN DISTRIC, RIAU ISLANDS
Authors: Tahmid M. , Fahrudin Achmad , Wardiatno Yusli 
Published: January 2018

Mud crab (Scylla serrata) is one of small scale fisheries commodity that have high economic value and typically associated with good mangrove ecosystem. A habitat degradation will cause a serious impact on the existence of mud crab population. The puropse of this study was to assess the ecological quality of mud crab habitat condition on Bintan Bay’s mangrove ecosystem. Ecological data collection was conducted by using plots line transect for mangrove and the mud carb data collection by using fishermen catch (fisher based survey). The results showed the value of habitat quality index (HQI) of mud crab (Scylla serrata) ranged from 52-82 which mean in the “moderate” category (index value 43-66) and "good" (index value 67-90). It showed that Bintan Bay’s mangrove ecosystems was good enough to support the viability of mud crab. Habitat quality had a linier impact on body weight gain (R2 = 99.78%) and carapace width (R2= 99.21%). This showed that higher the index value of habitat quality, the size of the body weight and carapace width will increases. Keywords: Scylla serrata, habitat quality, ecology, mangroves, and Bintan Bay
SPECIES COMPOSITION OF FRESHWATER EELS (Anguilla spp.) IN EIGHT RIVERS FLOWING TO PALABUHANRATU BAY, SUKABUMI, INDONESIA
Authors: Hakim Agus Alim , Kamal M Mukhlis , Butet Nurlisa A , Affandi Ridwan 
Published: January 2018

Freshwater eel (Anguilla spp.) is a catadromus fish that migrates from freshwater into seawater for spawning and return to freshwater during larvae stage to grow. The objective of this study was to determine species composition of tropical freshwater eels based on morphology collected from several rivers flowing in to the Palabuhan Ratu Bay. Young, adult, and glass eels were caught in August 2014 until Desember 2014. Glass eels were only caught in Cimandiri River. Freshwater eels were classified by ano-dorsal length (AD) divided by total length (TL), cluster analysis, and discriminant analysis based on morphometric data. The results showed different AD/TL of young and adult, i.e., 1.93±0.51 for A. bicolor bicolor, and 16.99±0.65 for A. marmorata, and three different AD/TL of glass eels i.e.,1.72±1.05 for A. bicolor bicolor6.60±1.79 for A. nebulosa nebulosa, and 15.07±1.04 for A. marmorata. Cluster analysis showed three groups of population characters of young and adult eels i.e. A. bicolor bicolor (2 groups) and A. marmorata (1 group). Discriminant analysis showed three groups of glass eels population i.e., A. bicolor bicolor, A. nebulosa nebulosa, and A. marmorata. Morphological identification showed that young and adult eels in Cibareno and Citepus rivers had two species i.e., A. bicolor bicolor and A. marmorata. Glass eels from Cimandiri river had three species i.e., A. bicolorbicolor, A. nebulosanebulosa, and A. marmorata. A. bicolor bicolor was found in each rivers and as a dominant species in Palabuhan Ratu Bay.Keywords: A. bicolor bicolor, A. marmorata, A. nebulosa nebulosa, species composition
RATIO OF NUTRIENT AND DIATOM-DINOFLAGELLATE COMMUNITY IN SPERMONDE WATERS, SOUTH SULAWESI
Authors: Nasir Andriani , Lukman Muhammad , Tuwo Ambo , Nurfadilah . 
Published: January 2018

Runoff of nutrients (N, P, Si) from the mainland would disrupt the balance of nutrients in the waters resulted in changing microalgae communities composition, especially between diatom and dino-flagellate (Dia/Dino). This study was aimed to analyze the relationship of nutrient ratios (N/P, N/Si, Si/P) in the waters, to the density ratio of the Dia/Dino in the coastal and marine waters of Spermonde archipelago, South Sulawesi, Indonesia, which experience nutrient enrichment. Nutrients and phyto-plankton samples were collected from the coastal waters of Tallo, Maros, Pangkep, and seawaters of Spermonde in three seasons (transition, wet, and dry). The results showed the average value (± stan-dard deviation) of Dia/Dino ratio in the coastal and sea waters is 1422±1742 and 1174±1290 in the transition season; 238±205 and 1039±2264 in the dry season; and 153±270 and 72±71in the rainy season. Meanwhile, in the marine waters the ratio of Dia/Dino ranges between 1 and 9839. The ratio of Dia/Dino was not different significantly (p>0,05) by spatial and temporal, but Dia/Dino ratio was different significantly (p<0,05) on the ratio of nutrients in coastal waters, where the value of N/Si ratio tends to ignite monospesies enrichment diatom (Chaetoceros) with a variant of 70,4%. Keywords: nutrient ratios, diatom, dinoflagellate, coastal, Spermonde
VACCINATION OF JUVENILE TIGER GROUPER WITH THREE INACTIVATED BACTERIAL PATHOGENS
Authors: Zafran . 
Published: January 2018

An experiment to evaluate the efficacy of inactivated polyvalent bacterial vaccines to increase specific immunity of tiger grouper (Epinephelus fuscoguttatus) against bacterial infection was conducted in floating net cages located in Sumbawa Island, West Nusa Tenggara. Polyvalent bacterial vaccine was prepared by mixing three species of killed-bacteria (Vibrio harveyi, V. alginolyticus, and Photobacterium leiognathi) with ratio of 1:1:1. The density of bacterial vaccine was adjusted at 1010 CFU/ml. The vaccines were delivered by immersion. The control fish were immersed in sea water without vaccine. Fish with ± 6 cm of total length and ± 7 g of body weigth were used in this experiment. The fishes were reared in concrete tanks in hatchery of Gondol, Bali until they reached ± 9 cm of total length. Later, the fishes were reared for 6 months in floating net cages located in Sumbawa. Re-vaccinations were delivered 60 days and 120 days post initial vaccination. The results showed that titer antibody and survival rate of the vaccinated fish were 1/128 and 77.11%, higher than the control (titer antibody=1/4-1/8, survival=45.56%, respectively). The relative percent survival of the vaccinated fish was 57.95%. It was suggested that the vaccines were immunogenic and had protective ability against bacterial infection in tiger groupers. Keywords: bacterial disease, polyvalent bacterial vaccine, tiger grouper
RESPONSE OF SEA SURFACE TEMPERATURE (SST) AND CHLOROPHYLL-A ON MADDEN JULIAN OSCILLATION (MJO) IN INDONESIAN SEAS
Authors: Balbeid Nabil , Atmadipoera Agus Saleh , Koropitan Alan Frendy 
Published: January 2018

Madden-Julian Oscillation (MJO) is a large-scale phenomenon that occurs in equatorial area, parti-cularly Indonesia. This research aimed to investigate the MJO propagation process and studied the correlation between MJO and sea surface temperature (SST) and chlorophyll-a. Sea variables (SST and chlorophyll-a) and atmosphere variables (outgoing longwave radiation/OLR, 1,5 km wind, and surface wind) were band-pass filtered for 20-100 days period. Spectral density from OLR and 1,5 km wind (2003-2012) shows that the MJO period was dominantly occurred for 40–50 days. Average pro-pagation of MJO velocity resulted from the atmospheric variable analysis by Hovmöller diagram was 4,7 m/s. Cross correlation between SST and OLR in South Java and Banda Sea results a strong corre-lation during MJO active phase, where MJO took place first and was then followed by the decreasing SST along the equatorial region. Increasing chlorophyll-a concentration occured at some areas du-ring MJO active phase with relatively short phase delay. During the MJO active phase, fluctuation of wind velocity generates variation over mixed layer depth and triggers upwelling /entrainment. Nutri-ent was upwelled to the water surface and hence increase phytoplankton production and chlorophyll-a concentration. Keywords: Madden Julian Oscillation, OLR, sea surface temperature, surface chlorophyll-a
SUSTAINABILITY STATUS OF MANGROVE ECOSYSTEM MANAGEMENT IN SEMBILANG NATIONAL PARK, BANYUASIN REGENCY, SOUTH SUMATERA PROVINCE
Authors: Theresia . , Boer Mennofatria , Pratiwi Niken T.M 
Published: January 2018

he utilization of mangrove in Sembilang National Park area has increased lately so that it is necessary to assess the sustainability of the mangrove ecosystem management in the region. The study was conducted in March-April 2015. The research location was in the National Park Sembilang, Banyuasin Regency, South Sumatra. The study used primary data and secondary data collections. The primary data were collected from direct observation of mangrove vegetation and via directs interviews of 86 respondents using purposive sampling method. The sustainability status and recommendations for management strategies were determined using Multi Dimensional Scaling (MDS) method approaching by RAPFISH (Rapid Assessment Technique for Fisheries).Current sustainabilitystatus of mangrove management in Sembilang National Park, Banyuasin Regency, South Sumatra was "less sustainable" with multidimensional sustainability index of 49.81. Priority attributes that need to be fixed in order to improve the status of sustainable management of mangrove ecosystems in the region were area changes, local knowledge, conflict of interest, and local wisdom. Alternative strategy priority for mangrove ecosystem management in the region was the empowerment of local community for sustainable mangrove utilization. Keywords: sembilang national park, RAPMANGROVE, mangrove ecosystem management
BIOACCUMULATION OF ORGANOCHLORINES PESTICIDES (OCP) COMPOUND IN GREEN MUSSELLS (Perna viridis) IN JAKARTA BAY
Authors: Edward . 
Published: January 2018

ABSTRACTThe green mussel, Perna viridis can be used to determine bioaccumulation levels of organochlorine pesticides in a marine environment. Measurements on pesticide organochlorine concentration in green mussels (Perna viridis) were conducted in March and May 2013. The purpose of this research was to determine the bioaccumulation level of organochlorine pesticides in green mussels which were cultivated in Jakarta Bay. The samples were collected in Jakarta Bay in March and May 2013. The organochlorine pesticides concentration were measured by gas chromatography HP 5890 series II. The results showed that the average concentration of organochlorine pesticides in the small size of green mussells was 12.842 ppb, in the medium size was 27.065 ppb, and in the big size was 108.646 ppb. These concentrations were still lower than safety threshold limit value for seafood stated by EPA (Environment Protection Agency) i.e., 1,500 ppb. The comparation between organochlorine pesticide concentration in seawater and organochlorine pesticide in green mussels (bioaccumulation factor) were 2,140 for small green mussel, 4,510 for medium green mussel, and 18,107 for big green mussels, respectively.Keywords: bioaccumulation, green musselss, organochlorine pesticide, Jakarta Bay
DISTRIBUTION OF SEAGRASSES IN INNER AMBON BAY
Authors: Irawan Andri , Nganro Noorsalam R. 
Published: January 2018

ABSTRACTExcessive sedimentation in Inner Ambon Bay (IAB) is alleged to cause the degradation of seagrass ve-getation in the area. To get a clearer picture about the matter, we conducted a field study in October 2010 - January 2011 to describe the distribution and density of seagrass at several locations in IAB with different conditions of sedimentation levels. Data were collected using transects perpendicular to the coastline along the seagrass vegetation. The results showed that there were six species of seagrass which were spreaded unevenly. At the locations with high sedimentation, we found the formation of monospecies seagrass vegetation. Conversely, at the locations with low sedimentation, we found the formation of multispecies seagrass vegetation. The distribution and abundance of each species was related to the differences of seagrasses ability to grow in a certain environment and the compe-titiveness among them. Keywords: sedimentation, distribution, seagrass, Inner Ambon Bay
POTENTIAL USE OF Ulva lactuca AS FEED INGREDIENT FOR TILAPIA
Authors: Mahasu Nur Hikma , Jusadi Dedi , Setiawati Mia , Giri I Nyoman Adi Asmara 
Published: January 2018

Due to the mainly imported for fish feed ingredients in Indonesia, many attemps have been made to discover local potential ingredients to reduce the utilization of imported ingredients. In this experiment, the utilization of Ulva lactuca as feed ingredient for tilapia was evaluated. Experiment 1 was conducted to determine the digestibility of Ulva for tilapia. In experiment 2 and 3, Ulva was used to substitute wheat pollard of either 0, 3, 6, 9, or 12 % in the feed formulation. In experiment 2, fish with an average body weight of 4.1±0.15 g were fed on those diets, and were cultured for 55 days. To calculate the digestibity in experiment 3, Cr2O3 was added into the diet of exeriment 2; then fed on the fish with an average body weight of 19.0±0.67 g. Results showed that apparent digestibility of dry matter and crude protein of Ulva were 66.3 and 83 %, respectively. Ash content in the diet increased of 13.5% with Ulva inclusion of 12%. On the other hand, using Ulva as a substitute for pollard up to 12% was not affected the growth performance of fish. Regardless of the Ulva level in the diet, the digestibility of the diet was the same. Therefore, Ulva is a potential source of local feed ingredient for tilapia. Keywords: Ulva lactuca, tilapia, digestibility, growth
PLANKTON COMMUNITY STRUCTURE OF TRADITIONAL AND INTENSIVE BRACKISHWATER PONDS IN PROBOLINGGO REGENCY, EAST JAVA PROVINCE
Authors: Utojo . , Mustafa Akhmad 
Published: January 2018

This experiment aimed to determine the plankton community structure in intensive and traditional ponds of Probolinggo Regency, East Java Province. Plankton collected with plankton net size of 60 μm and preserved with lugol 1%. Water qualities such as temperature, transparancy, salinity, dis-solved oxygen, pH, total organic matter, NO2-N, NO3-N, NH3-N, PO4-P, and total suspended solids were measured and analysed in this study. Planktons were identified using microscopy. Cells were counted using cell counting method. The results showed that in intensive pond we found 16 species of phytoplankton and 7 species of zooplankton with abundance 570-1.808 ind./L, while in traditional ponds, we found 10 species of phytoplankton and 3 species of zooplankton with abundance 134-776 ind./L. The dominant species of phytoplankton in the intensive and traditional ponds were Navicula sp andNitzschia sp, each of Bacillariophyceae class with abundance of 423 ind./L and 198 ind./L, res-pectively. Zooplankton species in intensive pond was copepod sp, while in traditional one was Oitho-na sp, each of Crustaceae class with abundance of 66 ind./L and 37 ind./L, respectively. Diversity and abundance of plankton in intensive pond was higher than in the traditional ponds. The water quality in intensive pond was optimal so that the response to the absorption of N and P inorganic by phyto-plankton was quicker and more effective than in traditional pond producing an increase in plankton communities. The increase value of NO3-N and total suspended solids in intensive pond caused the in-crease abundance of Navicula sp. The high value of NH3-N caused the abundance of Navicula sp to decline. The high values of dissolved oxygen, pH, total suspended solid, and NH3-N in traditional pond can decrease the Nitzschia sp abundance. Keywords: plankton communities, intensive and traditional ponds, Probolinggo, East Java
THE EFFECT OF STOCK DENSITY OF GOLDEN-MOUTH TURBAN (Turbo chysostomus, L.) ON THEIR SURVIVAL AND GROWTH UNDER AIR WATER LIFT SYSTEM
Authors: Hamzah M.S. 
Published: January 2018

Golden-mouth turban (Turbo chrysostumus, L.) belongs to the phylum of molluscs that inhabits coral reef ecosystem in group. Golden-mouth turban normally uses algae for their food. Study on survival and growth of the juvenile golden-mouth turban focussing on different density under air water lift sys-tem is still limited. This study was conducted on 7 January – 6 May, 2015, in a laboratory to observe the effect of different density on the survival and growth of golden-mouth turban under air water lift system. Based on the analyses of variance (ANOVA), there was no significant different (P>0.05) on mortality rate for different stock density treatment (5 ind., 10 ind., 15 ind., and 20 ind. each in 10 liter water volume). However, based on growth rate, the density of 5 individuals produced the highest monthly growth rate of 1.88 mm/month of shell height, 1.18 mm/month of mouth opening, and 1.1 gr/month of wet weight with the highest daily mean food absorption of 91.55 %. For all treatment, the correlation of shell height and wet body weight exhibited a similar growth pattrern i.e., allometry minor (b<3). Ketwords: Survival, growth, golden-mouth turban (Turbo chrysostumus), stocking density, air water lift system.
MARINE TOURISM SUSTAINABILITY DEVELOPMENT IN MARINE RECREATIONAL PARK ANAMBAS ISLAND
Authors: Kurniawan Rika , Yulianda Fredinan , Susanto Handoko Adi 
Published: January 2018

Mantang Besar and Mantang Kecil islands contain marine resources that can be developed for ma-rine tourism activities. For the above purpose, a study is needed to assess the potential of the islands. The objectives of this study were: (1) to analyze the sustainability potential of marine tourism on Man-tang Besar and Mantang Kecil islands and (2) to determine the policy and strategy to develop marine tourism in Mantang Besar and Mantang Kecil islands. Multi-Criteria Analysis (MCA) with Rapid Appraisal Index Sustainability of Ecotourism approach was used for the sustainability analysis of the marine tourism potential in both islands. The results showed that the sustainability status of marine tourism potential on Mantang Besar and Mantang Kecil islands for A dimension (ecology) was in ave-rage of 50.4592 within the category of sustainable, for B dimension (socio-economic) with average of 31.6113 within the category of less sustainable, and C dimension (institutional-technology) with ave-rage of 32.5581 wihtin the category of less sustainable. For the succes of the strategy development, B dimension should be prioritized and followed by B and C dimensions. Keywords: MCA, marine tourism development strategy, Anambas islands
OCEANOGRAPHY AND WATER QUALITY CONDITION IN SEVERAL WATERS OF THOUSAND ISLANDS AND ITS SUITABILITY FOR WHITE SHRIMP Litopenaeus vannamei CULTURE
Authors: Effendi Irzal , Suprayudi Muhammad Agus , Nurjaya I Wayan , Surawidjaja Enang Harris , Supriyono Eddy , Junior Muhammad Zairin , Sukenda . 
Published: January 2018

The purposes of this study were to determine oceanographic and water quality parameters and their suitability for white shrimp Litopenaeus vannamei culture. The measurements were carried out on dry season in Semak Daun Island, Karya Island, and Panggang Island waters of Thousand Islands, with areas of 315.0, 12.0, and 102.8 ha, water depth average of 4.6 m (0.5-28.1 m), 14.6 m (0.5-26.7 m), and 5.3 m (0.8-13.6 m), mean current water velocity of 12.9, 12.7, and 13.5 cm/second, respectively. In the study areas, we found a diurnal tidal pattern with high wave in January and July-August. Based on temperature, salinity, and water density in Semak Daun Island waters, there seemingly occurred a turn over indicating a good water circulation, while in Panggang Island and Karya Island waters tended to have a stratification. Generaly, water qualities in the study areas were in the op-timum range for white shrimp culture, i.e., temperature of 29.6-30.8oC, turbidity of 0.10-1.05 NTU, transparency of 5.8-9.7 m, total suspended solid of <8 mg/L, total dissolved solid of 20-164 mg/L, pH of 6.89-7.22, salinity of 32.2-32.3, dissolved oxygen of 5.8-10.8 mg/L, ammonia of 0.068-0.145 mg/L, nitrate 1.247-2.589 mg/L, and phosphate of 1.021-2.352 mg/L. Moreover, in Semak Daun Island wa-ters, we found the highest suitability for white shrimp culture due to its better water circulation.Keywords: mariculture, coral reef waters, strait, water current, turnover, stratification.
GROW OUT AND EVALUATION OF FIRST GENERATION (F1) OF PROSPECTIVE HUMPBACK GROUPER Cromileptes altivelis BROODSTOCK
Authors: Tridjoko . , Wardana Ida Komang , Muzaki Ahmad 
Published: January 2018

During this time the humpback grouper broodstock spawning that comes from nature. Efforts to provide humpback grouper fish from cultured (F1) has been conducted and it has been spawn. The purpose of this study was to determine the quality of broodstock first generation (F1) with a good maintenance management and monitoring evaluation of character growth, gonad development, and genetic characteristics through microsatelite marker. Broodstock reared in concrete tank volume of 75 m3 with three different of hormonal implantation treatments: (1) estradiol, (2) 17α-methyltestosterone (MT), (3) a mixture of 17α-Methyl-testosterone by aromatase inhibitors, and control. The observed parameters were growth, gonad development, reproductive hormones in the blood composition and the performance of genetic through microsatellite analysis. The results showed that the humpback grouper F1 implantation treatment by methyl testosterone and estradiol showed good growth with an average body weight at the end of the observed ranged from 680 ± 60.5 to 820 ± 76,5g with an average body length of 34 -36 cm. In individual control growth better because during the maintenance of the population is not implanted. Analyses of testosterone and estradiol in the blood plasma showed that 40% of individuals in the population were males. Microsatellite analysis showed that F1 fish had good genetic variation (0.778-1.000) so that it can be used as broodstock candidate.
CORAL REEF ECOSYSTEM VULNERABILITY INDEX TO OIL SPILL: CASE OF PRAMUKA ISLAND AND BELANDA ISLAND IN SERIBU ISLANDS
Authors: Suhery Noveldesra , Damar Ario , Effendi Hefni 
Published: January 2018

Vulnerability analysis is one of the methods for determining effective management of coastal and marine resources. Seribu islands potentially affected due to oil spills. The oil spills incident in this area caused by shipwreck from traffic on Tanjung Priok port and ALKI 1, as well as accident of petroleum exploration and exploitation. At least, oil spills in Seribu Islands have been recorded since 2003, 2004, 2006, 2007 and 2008. This study aims to calculate the vulnerability index of Pramuka island and Belanda island in the Seribu Islands. This research was conducted by using a theoretical approach of vulnerability (V), which is a function of exposure (E), sensitivity (S) and adaptive capacity (AC). The parameters in exposure category are tidal type, tidal range, wave height, substrat type, and water depth. Parameters in sensitivity category are growth type of reef, slope, protected ecosystem, coverage percentage, coral density, protected species, and fish abundance. Parameters in adaptive capacity are oil spill contingency system, conservation institution, community response, and economic dependence. Data of each parameter were transformed into a score ranging from 1 to 5. The formula of vulnerability index using addition and subtraction model where; V = E + S – AC. The results indicate that Seribu Islands have vulnerability status from moderate to high, which 4.15 for Pramuka island and 6.39 for Belanda island. Keywords: vulnerability index, Seribu islands, coral reef, oil spill