bluuebunny/crossref_metadata_2025_split huggingface dataset:
THE COMPOSITION OF SPESIES AND CHANGES IN REEF FISHES COMMUNITY AT ECOREEF REHABILITATION SITE, MANADO TUA ISLAND, BUNAKEN NATIONAL PARK
Authors: Setiawan Fakhrizal , Razak Tries B. , Idris Idris , Estradivari Estradivari 
Published: January 2018

The study conducted from 2006 to 2012 with an interval of every two years in the ecoreef area of ​​ Manado Tua island found 2,936 individual reef fishes of 181 species that include into 32 families. Species composition value of the 10 dominant species of reef fishes was 55.48% of the total species. The highest number of species was Plotosus lineatus with schooling behavior which only discovered in 2010 at a depth of 3 meters. Ecoreef area of Manado Tua island, when analyzed from the abundance and biomass of reef fishes exhibited a succession of reef fish that have been stable, with peak abundance and higher biomass in 2008 and 2010. Reef fish found in ecoreef seemed to start a new living and become a new habitat for them. These were indicated by the highest biomass during the previous year but the number of individuals and spesies were decline. There was no change in the structure of reef fish communities in the ecoreef area of Manado Tua Island, which characterized by non significant different ecological index between the years. Cluster analyses grouped reef fish species into 2 groups i.e., the group of 2006 and the group of 2008, 2010, and 2012. Early survey in 2006 showed lower abundance of reef fish species for allegedly associated with low ecoreef organisms. Keywords: ecoreef, spesies composition, community structure, reef fish.
MICROHABITAT PREFERENCE OF SEASTAR IN HARI ISLAND WATERS, SOUTHEAST SULAWESI
Authors: Gaffar Syamsidar , Zamani Neviaty P , Purwati Pradina 
Published: January 2018

The objective of this study was to explore the information on the microhabitat preference of asteroidea in Hari Island Waters, Southeast Sulawesi. The specimens were collected in August 2012 and December 2012. The methods used in this study were road sampling technique, freehandpicking, and observation. The geographical coordinate position of the asteroidea and microhabitat were recorded by using GPS and then mapped by using the ArcGIS 10.1. Asteroidea map was overlayed with microhabitat map to determine the microhabitat preference. The study found 9 species of asteroidea belonging to 7 generas, 4 families, and 2 orders. All the asteroidea were relatively common species in the tropical shallow waters. The species were distributed along sides of the island with majority found in the northern side. The dominant species, Linckia laevigata, was found in all microhabitat which had beed adapted to various microhabitat conditions and water fluctuation. Based on area of distribution and population density, seastar tended to use reef coral as its microhabitat preference since reef coral could serve as a food source and habitat protection. Keywords: Seastar, microhabitat preference, Hari island
DIVERSITY AND ABUNDANCE OF ECHINODERMS AT WEDA BAY WATERS, NORTH MALUKU
Authors: Radjab Abdul Wahab , Rumahenga Semuel Agustinus , Soamole Ahmad , Polnaya Dominggus , Barends Wempy 
Published: January 2018

Weda Bay located at Halmahera Island, North Maluku was rich in fishes, sea cucumbers, crabs, shrimp, and alge resources. Research on diversity and density of echinoderms at Weda Bay, North Maluku was limited and therefore it was lack on data and information of the biota. The purpose of this study was to determine the diversity and density of echinoderms at Weda Bay, North Maluku. This research was conducted in March 2013 including transects and free collection of 6 stations contained echinoderms. The results showed that the overall echinoderms were found 23 species of 17 generas, 12 families, 10 orders, and 5 classes. Based on classes, the highest density of echinoderms was Asteroidea of 0.0456 ind/m2 (43.76 %) foundin the seagrass sand habitat. Meanwhile, the lowest density was Crinoidea of 0.0002 ind/m2 (0.19%) found in corals habitats. Keywords: diversity, density, echinoderms, Weda bay, North Maluku.
GONADAL DEVELOPMENT OF DOMESTICATED CORAL TROUT (Plectropomus leopardus) REARED IN FLOATING NET CAGE
Authors: Sembiring Sari BM , Andamari R , Muzaki A , Wardana I K , Hutapea J H , Widya A Ni Wayan 
Published: January 2018

Research on Coral trout breeding has been started since 2002 at the Institute of Mariculture Research and Development and currently some hatcheries are being developed around the institute using natural broodstock. To promote the success on this breeding program, it is necessary to study the reproduction development of domesticated coral trout. The fishes were reared in floating net cage. Observation were conducted on 163 fishes in June 2013 with body weight range from 710 -2020 g (average of 1.393 g) and total length with range of 34-49.5 cm. Fishes were dissected and taken out their gonad for histology preparedness. Histology analyses found that there were 156 female, 2 hermaprodite, 2 male, and 3 unidentified fishes. All female fishes were on early gonadal development (stage I and II with gonadal maturation index of observed coral trout ranged from 0.1 to 1.83). Further analyses showed that several different stages of gonad were found in the same gonad and concluded that coral trout was multiple spawnning order (asynchrounous). Based on the data above, it was concluded that gonad maturation of Coral trout is able to develop in domestication system in floating net cage. Keywords: Gonad, Coral trout (Plectropomus leopardus), hystology, floating net cage
VERTEBRAL DEVELOPMENT AND PROTEASE ACTIVITY OF LARVAL MILKFISH, Chanos chanos Forsskal IN DIFFERENT REARING MEDIA
Authors: Aslianti Titiek , Nasukha Afifah , Setyadi Irwan 
Published: January 2018

The milkfish (Chanos chanos Forsskal) seed quality is an important factor for supporting the fisheries industrialization program . The egg fertility and larval rearing management are two main factors to improve the quality of the seed. The aim of this research was to obtain the information about those two indicators on milkfish larvae, reared in different media. About 100,000 eggs were located in 6 units of the outdoor concrete tank with volume of 6 m3. Larvae were reared due to the rearing standard procedure while the feeding management was adapted during larvae development. Two different treatments in larval rearing medium were with and without the addition of molasses, subsequently in triple trials. This study started from hatching day (0 DAH) until the end of larval rearing period (16-18 DAH). The growth parameters such as vertebrae analyses and survival were taken in the end of research periods, while protease assessment was analyzed every day using tyrosine and casein standard methods. The results showed that the molasses addition produced a higher growth (TL 12.95±0.87 mm) and survival rate (87.66±1.52%), better vertebral performance (44-45 segments), and higher protease activity (0.1392-0.3863 U/ml/min) than without molasses addition. The results indicated that molasses addition in larvae rearing medium improved the larvae quality. Keywords: Protease enzime activity,milkfish seeds, molasses, vertebrae
THE APPLICATIONS GROUPER SEED PRODUCTION TECHNOLOGY TO SUPPORT MARICULTURE DEVELOPMENT
Authors: Ismi Suko 
Published: January 2018

Application technology for grouper seed production was conducted by dissemination activities, aimed for dissemination technology in several places having aquaculture prospects in order to facilitate seed supply. The research was conducted in 2012 collaborated with the Department of Fisheries and Maritime Affairs Lamongan Regency and Fisheries Academy of Sidoarjo. Application technology for grouper seed production was conducted in Tunggu village, Paciran district, Lamongan, East Java. Grouper seeds which maintained were tiger, cantik, and cantang. Seed productions were performed from egg to juvenile with size of ±3.0 cm,in which the eggs were transported from hatchery in Bali and larval rearing was conducted based on the produced technology. The results showed that survival rate of tiger grouper was 8.3%, cantang grouper was 11,6%, and cantik grouper was 12.4%. The results showed that R/C ratio was >1, in which the business was profitable. The technology can be applied to the community and grouper seed production can support aquaculture activities. Keywords: Grouper seed, production, technology, R/C ratio, aquaculture
SEAWATER QUALITY FOR SHRIMP MARICULTURE BASED ON MICROBIOLOGY PARAMETERS
Authors: Sutiknowati Lies Indah 
Published: January 2018

Seawater quality plays an important factor for the success of mariculture such as microbiology paramater. The research aimed to analize the waters quality for shrimp mariculture in Barru, Pangkep, and Maros based on bacteriology parameters. The research were carried out in June 2012. Bacteriology parameters analysed were total coliform, E.coli, pathogen, heterotrophic, halotolerant, and phosphate-nitrate-ammonia bacteria. Coliform and E.coli bacteria were analysed based on filtration. Pathogenic bacteria was identified using biochemical test. Heterotrophic, halotolerant, and phosphate-nitrate-ammonia bacteria were analysed using pour plate. The results from shrimp aquaculture showed the total abundance of coliform cell of >1000 colony forming unit (cfu)/100 ml, E.coli of 0-4 cfu/100ml, heterotrophic bacteria of about (31-176)x103 cfu/ml, and halotolerant bacteria of about (31-375)x103 cfu/ml. The results from sediment for heterotrophic bacteria was about (350-3920)x103 cfu/ml, halotolerant of about (350-4980)3x10 cfu/ml, and phosphate-nitrate-ammonia bacteria of about 14-46 cfu/ml. The pathogen bacteria waere found such as genus Aeromonas, Pseudomonas, Proteus, Citrobacter, Shigella and Yersinia. The dominant pathogens in shrimp aquaculture water and sediment were Proteus and Citrobacter. The results indicated that seawaters in Barru, Pangkep, and Maros can be used for mariculture including shrimp Panaeid. Keywords: bacteria, parameter, marineculture, shrimp.
WAVELET DENOISING APPLICATION ON CTD (CONDUCTIVITY TEMPERATURE DEPTH) SIGNALS TO IMPROVE THE QUALITY OF IDENTIFIED OVERTURN REGION
Authors: Naulita Yuli 
Published: January 2018

Turbulent mixing process can be evaluated from density inversions in CTD profiles, that may reveal the overturning eddies. The quality of overturn regions are then determined by the quality of CTD signals. The study removed noise on CTD signals without losing small perturbation which commonly occurred by traditional filter. By applying wavelet denoising in pre-processing data of Thorpe method, more Thorpe displacements indicated overturn regions, were able to detect especially in small density gradients. Therefore, the identified overturn region using the Thorpe method can be applied to a larger region of density gradients. Keywoods: turbulent mixing, overturn, Thorpe method, Thorpe displacement, wavelet denoising.
SCREENING ON THE POTENTIAL BIOACTIVE COMPOUNDS OF ANTIBACTERIAL ACTIVITY IN SOFT CORAL COLLECTED FROM SOUTH BANGKA ISLAND WATERS AND LAMPUNG BAY
Authors: Rozirwan Rozirwan , Bengen Dietriech G , Zamani Neviaty P , Effendi Hefni , Chaidir Chaidir 
Published: January 2018

ABSTRACT Soft corals contain bioactive compounds that can be used as a marine natural product. The puposes of this study was to determine of the soft corals inhibition potential for antibacterial activity. The methodology in this study included field sampling, extraction (in the solvent of n-hexane, ethyl acetate and methanol), antibacterial bioassay, and briefly describe the type of soft coral that possesed the highest inhibition. In sampling treatment, the biomass among wet samples and dry samples varied. The highest shrinkage due to drying was found in Nephthea, followed by Lobophytum and Sarcophyton, while the lowest was found in the genus of Sinularia. Extracted from 12 samples of soft coral, the lowest extract weight was found in the semi-polar solvent (EtOAc), while the extract weight of n-Hex and MeOH was vary. Inhibition power from all extract samples was found on soft coral extract in the EtOAc and MeOH solvents. The highest value of inhibition power was found in soft coral of Sinularia polydactyla and S. Flexibilis within strong catogery. Keywords: bioactive compounds, Lobophytum, Nephthea, Sarcophyton, Sinularia, soft coral
COMMUNITY SOCIAL-ECOLOGY DYNAMICS ON MADAK CULTURE OF COASTAL REGION, WEST SUMBAWA
Authors: Tania A Lidya , Yulianda Fredinan , Adrianto Luky 
Published: January 2018

ABSTRACT Madak activity is a local word for the people of Sumbawa to collect marine biota in tidal area during the low tide. The purpose of this study was to determine social change in communities of West Sumbawa for doing Madak culture. The study was conducted for 2 months in ​​West Sumbawa. Data were collected through observation, questionnaire, and interviewing the Madak people. It seemed that Madak culture changed totally, especially in daily actvities. In the past, they used tools that were environmentally friendly. However, during this study, they tended to damage coastal environment by flipping the reef. Keywords: Social, ecology, Madak culture, west Sumbawa
THE MASS SEED PRODUCTION OF GOLDEN TREVALLY FISH (Gnathanodon Speciosus Forsskal) WITH DIFFERENT FEED
Authors: Dharma Tony Setia 
Published: January 2018

ABSTRACT Golden trevally fish is a prospective commodity that can be cultured and contains high economic value. The purpose of this study was to determine the best type of food for golden trevally fish growth. The larval rearing were conducted using concrete tanks with 6 m3 of volume. Three different food were used as treatments, i.e: (a) pellet micro, (b) small shrimp, and (c) trash fish. The start of experiment for larvae were reared for 30 days old. The stocking density of larvae was reared at 10 pc/l. Sampling of larvae were conducted every 7 days to measure of survival rate (SR), total length (TL) and body weight (BW). The larvae were reared with flowthrow system. At 70 days old, larvae were harvested and graded. The results showed that there was no significantly different among treatments (P>0.05) for survival rate, but the growth was significantly difference among treatments (P<0.05). The survival rate (SR) treated with trash fish was 5.38±1.20%, small shrimp 4.05±1.10%, and micro pellet 4.01 ± 1.20%. The total length and weight treated with trash fish were 5.40 ± 0.80 cm and 53±0,50 mg, respectively, while treaded with small shrimp were 4.80 ± 0.20 cm and 61±0.30 mg, and micro pellet were 4.54±0.56 cm and 48±0.40 mg, respectively. Keywords: seed, food type, growth, survival, golden trevally fish.
IMPROVEMENT IN NUMBER AND QUALITY PRODUCTION OF SEED GROUPER FISH BY NATURAL FEED ENRICHMENT
Authors: Ismi Suko , Asih Yasmina Nirmala 
Published: January 2018

ABSTRACT Some researches on grouper seed production have been conducted and their results have been adopted by the farmer. Currently, grouper seeds for mariculture purposes can be provided from hatchery. However, seed abnormality is still the major problem in the hatchery. Therefore, an improvement for survival rate and quality of grouper seed production is very important. The aim of this study was to improve the production and reduce the abnormalities on grouper seed stock through enrichment of larvae feed (rotifer and artemia) with DHA and EPA, Vitamin and Calcium. The larvae of humpback grouper (Cromileptes altivelis) were reared with and without enrichment. The experiment were held in concrete tank with volume of 10 m3 filled with sea water 7-8 m3. Grouper eggs were stocked at a density of 10 eggs/l, larval were reared until the juvenile age of 45 days. Treatment were repeated three times. The data was analysed with descriptive statistic. The results showed that humpback grouper larvae reared with enriched rotifers and artemia produced better survival rate (26.81%), lower seed abnormality (26.10%), and better percentage of bigger size of seeds with grade A (20.3 %), B (39.2%), and C (40.5%). Meanwhile, treatment without feed enrichment produced lower survival rate (17.57%), higher abnormality (40.20%), and lower percentage of big size of seeds with grade A (9.7%), B (26.0%), and C (64.3%). Keywords: groupers, quality, enrichment, improvement, production
ANTIOXIDANT ACTIVITY OF SELECTED FORMULA Spirulina platensis TROCHES BASED ON PYSICAL CHARACTERISTICS
Authors: Fahleny Ria , Trilaksani Wini , Setyaningsih Iriani 
Published: January 2018

ABSTRACT Spirulina contains complete nutrition and bioactive components as a source of antioxidants. The aims of this research were to determine a formula of troche from Spirulina platensis according to the physical characteristic standard of the Indonesian Health Ministry, and to determine the antioxidant activity of the selected troche from Spirulina platensis. This research was conducted in three stages. The first stage was troches formulation. The second stage was troches physical analyses, including weight uniformity, friability, hardnes, and disintegration time. The third stage was to determine the antioxidant activity of the selected formula of troche from Spirulina platensis. There were five formulas of troches i.e., FTS 1, FTS 2, FTS 3, FTS 4, and FTS 5. The troche consisted of Spirulina platensis powder, carrageenan, gelatin, corn flour, sugarleaf, and mint powder. Based on the weight uniformity of the troche, all formulas met the standard. However, according to friability aspect, the best formula was FTS 1 with rate of 1.7%. The hardness of five formula ranged from 0.65 to 2.3 Kp, and none met the standard. The best formula based on disintegration time measurement was FTS 1 (24:47 minutes). Based on the physical characteristics of the troches, the selected formula was FTS 1. The antioxidant activity (IC50 of the selected formula (FTS 1) was 288,68 ppm. Keywords: antioxidant, troches, physical characteristics of troches, Spirulina platensis
DISSOLVED SILICATE IN COASTAL WATER OF SOUTH SULAWESI
Authors: Lukman Muhammad , Nasir Andriani , Amri Khairul , Tambaru Rahmadi , Hatta Muhammad , Nurfadilah Nurfadilah , Noer Rahmat Januar 
Published: January 2018

ABSTRACT Dissolved silicate (DSi) in coastal waters plays a crucial role in phytoplankton growth particularly diatom. This study aimed to determine DSi concentration seasonally in waters of the western coast of South Sulawesi in relation to coastal water quality indicator. Water, chlorophyll-a, and diatom samples were collected from the coastal areas of the Tallo-Makassar, Maros, and Pangkep, in April 2013 (transitional season), June 2013 (dry season), and February 2014 (wet season). Factorial analysis of variance was used to identify significant seasonal and temporal variations, and linear regression was used to test the relationship of chlorophyll-a and diatom abundance to DSi concentrations. The results showed that the DSi concentration was higher in the wet season of 35.2-85.2 µM than in the other seasons (transitional season: 10.8-68.4 µM, dry season: 9.59-24.1 µM). The abundance of diatoms during the transitional season reached ~9.7x107 cell/m3 in the Pangkep river, 2.3x107 cell/m3 in the Tallo river, and 1.3 x 107 cell/m3 in the Maros river. Chaetoceros, Nitzschia, and Rhizosolenia dominated the diatom composition. The mean concentration of chlorophyll-a in the Makassar coastal waters was 4.52±4.66 mg/m3, while in the Maros and Pangkep waters of 1.40±1.06, and 2.72±1.94 mg/m3, respectively. There was no strong linear corelation between DSi and diatom abundances, nor chlorophyll-a. These results suggested that DSi become a non-limiting factor for the diatom growth and potentially reduce the water quality via eutrophication and diatom blooms. Keywords: dissolved silicate, diatom, chlorophyll-a, coastal waters, South Sulawesi
TOPOGRAPHICALLY INDUCED TURBULENCE ON CONTINENTAL SHELF OFF JOGASHIMA, SAGAMI BAY, JAPAN
Authors: Naulita Yuli 
Published: January 2018

ABSTRACT Direct turbulence measurements using TurboMAP over a “small ridge” on the continental shelf off Jogashima, Sagami Bay, Japan revealed an active layer of topographically induced turbulence. The active layer ( = 10-7 - 10-6 W kg-1) located at mid-depth of 200 – 250 m, occurred on alternate side of “small ridge” depending on the direction of the tidal current. This active layer was accompanied by rebounded-isopycnal surfaces 26.0 - 26.1 σθ , in which all in qualitative manner showed an internal hydraulic flow control on the shelf. The turbulence friction velocity was two order of magnitude lower than observed- in this active layer explaining a less role of bottom friction than hydraulic flow to the high turbulence layer. Keywords: topographically induced turbulence, continental shelf, internal hydraulic flow
GRAIN-SIZE STATISTICAL PARAMETERS OF SANDY SEDIMENT IN KUALA GIGIENG, ACEH BESAR DISTRICT
Authors: Purnawan Syahrul , Haridhi Haekal A. , Setiawan Ichsan , Marwantim . 
Published: January 2018

Study of sediment distribution at Kuala Gigieng was to assess the information of sediment related to the occurrence of hydro-oceanographic processes. The sediment samples were collected from nine stations using coring method. Granulometric method was used to analyze the grain size distributions. The results showed different sediment distribution patterns in each area at estuary Kuala Gigieng. The outer area of estuary indicated skewed to coarse grains, while at the inner area of estuary indicated skewed to fine grains. Different sediment load transport process was suggested as the cause of differentiated sediment characters. Keywords: granulometry, grain size, sediment statistic, Kuala Gigieng
ECONOMIC EFFICIENCY AND PRODUCTIVITY OF THE FISHING BOAT FOR GIANT THREADFISH (Eletheronema tetradactylum)
Authors: Ahmad Muchtar , Nofrizal . 
Published: January 2018

This paper discussed the productivity and economic efficiency of the fishing boat for giant threadfish (Eletheronema tetradactylum), which operated in the Malacca Straits. Eleven fishing boats with different weights (GT) were observed for their input as total cost and output as total benefit in order to calculate respective fishing boat productivity and efficiency. It was found that fishing boat activities on giant threadfish using various boat sizes were efficient with BCR>1 and profitable. However, the average economic efficiency of all boats was 1.65 with the highest efficiency of 1.74 for the 2 GT fishing boat. The average productivity of the fishing boat was Rp 4.5 million or Rp 1.5 million/GT with its capital payback period of 29 months.The highest productivity was found on the 2 GT fishing boat of Rp 5.5 million or Rp 2.8 million/GT with its capital payback period of 27 months. However, The 4 GT fishing boat was recommended to be developed for artisanal fishery of giant threadfish because its economic efficiency was relatively high of 1.71 and its produktivity was Rp 5.1 million or Rp 1.3 million/GT with capital payback period of 29 months. Keywords: economic efficiency, fishing boat, Eletheronema tetradactylum, payback period