OmniAkuatika最新文献_第8页

The Ability of Gracilaria Sp. to Absorb Ammoniac (NH3-N) and its Effect on Chlorophyll Content and Growth 龙须菜对氨氮的吸收能力及其对叶绿素含量和生长的影响

OmniAkuatika Pub Date : 2018-12-18 DOI: 10.20884/1.OA.2018.14.3.608

Y. N. Ihsan, Rizky K. Bangsa, Kalysta Fellatami, T. Pribadi

{"title":"The Ability of Gracilaria Sp. to Absorb Ammoniac (NH3-N) and its Effect on Chlorophyll Content and Growth","authors":"Y. N. Ihsan, Rizky K. Bangsa, Kalysta Fellatami, T. Pribadi","doi":"10.20884/1.OA.2018.14.3.608","DOIUrl":"https://doi.org/10.20884/1.OA.2018.14.3.608","url":null,"abstract":"One of the most commonly found component of domestic waste in coastal areas is ammoniac. Phytoremediation techniques can be done to reduce ammoniac concentrations. In this research, the technique uses the macroalgae Gracillaria sp. This study aims to measure the optimum ability of Gracillaria sp. to absorb ammoniac and its effect towards the primary productivity of water exposed to ammoniac. The research was done by comparing the reduction of ammoniac in seawater, which is used as a medium of experiment for 120 hours, with the ammoniac concentration in Gracillaria sp. The research method used was an experimental method with a completely randomized design of four treatments and three repetitions. The effectiveness results of ammoniac reduction by macroalgae in treatment A, B, C and D are 41.21%, 50.27%, 47.37% and 43.05% respectively. The initial concentration results of ammoniac in Gracillaria sp. was 20.75 mg/kg and the final concentrations in treatment A, B, C and D were 21.08 mg/kg, 21.20 mg/kg, 22.87 mg/kg and 24.44 mg/kg respectively. The measurement results of chlorophyll-a concentration in water coloumn ranged between 0.015 - 0.027 mg/l.","PeriodicalId":31102,"journal":{"name":"OmniAkuatika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48123025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Genetic Population Structure of Yellowfin Tuna (Thunnus albacares) as Based Data of Fish Conservation in North Mallucas Sea 基于北马鲁卡斯海域鱼类保护数据的黄鳍金枪鱼（Thunnus albacares）遗传种群结构

OmniAkuatika Pub Date : 2018-12-14 DOI: 10.20884/1.oa.2018.14.3.457

N. Akbar, M. Aris

{"title":"Genetic Population Structure of Yellowfin Tuna (Thunnus albacares) as Based Data of Fish Conservation in North Mallucas Sea","authors":"N. Akbar, M. Aris","doi":"10.20884/1.oa.2018.14.3.457","DOIUrl":"https://doi.org/10.20884/1.oa.2018.14.3.457","url":null,"abstract":"Tuna is a migratory species with high economic value. Utilization of tuna is increasing and growing every year. Fishing intensity of tuna in the Maluku Sea is high and can disrupt the population. The existence of the population will be threatened if not managed properly. The latest genetic information approach is necessary to prevent the population decline. The purpose of this research was to know the genetic structure of yellowfin tuna in North Maluku waters, Indonesi. Sampling was conducted in May-July 2016 in Morotai Island, Obi and Sanana, while secondary data was gathered in Ternate Island, Bacan and Ambon. A total of 72 samples were collected and analyzed. The result of the study found that the base length (bp) of the control region of mtDNA was found to be 512 bp (base pairs). the genetic distance in the nearest population is at Sanana and Obi (0.025). The results of genetic distance analysis between population found genetic similarity between Morotai-Sanana (0,021), Obi-Sanana (0,025), Obi-Morotai (0,026) and Ambon-Sanana (0,026), while the furthest genetic distance was found in Ternate-Bacan (0,040) and Ternate-Obi (0,042). The pairwise comparison test (Fst) shows a few genetic differentiation between yellowfin tuna populations. The value (Fst) of the yellowfin tuna population shows a strong gene flow between populations. The haplotype distribution shows a relationship between haplotypes in both yellowfin tuna, thus failing to show clade between different geographic locations. Unsustainable use can harm the population through genetic quality. Several approaches should be taken to support the life cycle of yellowfin tuna. The overall result shows that there has not been any change of genetic structure of yellowfin tuna in North Maluku Sea. Keywords : Haplotype, genetic distance, North Maluku, yellowfin tuna, pairwise comparison test","PeriodicalId":31102,"journal":{"name":"OmniAkuatika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49610120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Detection of Eutrophication In Benoa Bay - Bali 巴厘岛贝诺阿湾富营养化检测

OmniAkuatika Pub Date : 2018-11-28 DOI: 10.20884/1.OA.2018.14.3.490

Y. Suteja, I. Dirgayusa

引用次数: 7

The Chemical Composition of Gracilaria verrucosa Extract and its Utilization on Survival and Growth Litopenaeus vannamei 疣状龙须菜提取物的化学成分及其在凡纳滨对虾生存和生长中的应用

OmniAkuatika Pub Date : 2018-11-28 DOI: 10.20884/1.OA.2018.14.3.508

Yudiana Jasmanindar, S. Sukenda, A. Alimuddin, M. Z. Junior, N. Utomo

{"title":"The Chemical Composition of Gracilaria verrucosa Extract and its Utilization on Survival and Growth Litopenaeus vannamei","authors":"Yudiana Jasmanindar, S. Sukenda, A. Alimuddin, M. Z. Junior, N. Utomo","doi":"10.20884/1.OA.2018.14.3.508","DOIUrl":"https://doi.org/10.20884/1.OA.2018.14.3.508","url":null,"abstract":"The Gracilaria genus is a potential source of natural and environmentally-friendly alternatives in improving the survival and growth of shrimp. This study aims to identification immunostimulant molecules extract G. verrucosa and evaluate the utilization of G verrucosa extract as an immunostimulant in improving survival and growth of L. vannamei. Seaweed extraction used ethyl acetate then formulated in the diets. The immunostimulant molecule in the G. verrucosa was analysis. The shrimp were fed a test diet containing extract G. verrucosa at a dose of 2 g kg-1 or extract G. verrucosa-free control diets for 42 days. Shrimps were fed diets containing extract with a specific duration. The observation on the survival and growth of L. vannamei was performed after maintenance at the Laboratory for six weeks. Following, diets containing extract was tested in the field (pond shrimp farm) at the same dose of extract for 58 days. Shrimp was feed diets containing extract once a week, once in the early culture, and diet control, then the survival and growth shrimp were analysis. Concentrations of sulfates and carbohydrates in G. verrucosa ethyl acetate-extract were 24.21% and 13.41%, and crude protein 3.64%. GC-MS pyrolysis results show that G. verrucosa polysaccharide is similar to immunostimulant molecules. The survival shrimp gave diets containing G. verrucosa extract formulation was higher than that of shrimps fed controls diet. The Shrimp fed diets extracts have higher growth than shrimp given control dietsKeywords: Gracilaria, extract, polysaccharides, immunostimulant","PeriodicalId":31102,"journal":{"name":"OmniAkuatika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47630460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

The Phosphorus and Sulphur Distribution and Culturable Bacterial In Time Chronosequence of Ex-Tin Mining Ponds 前锡矿池中磷、硫的分布及可培养细菌的时间序列

OmniAkuatika Pub Date : 2018-11-28 DOI: 10.20884/1.oa.2018.14.3.473

A. Kurniawan, O. Oedjijono, Tamad Tamad, U. Sulaeman

{"title":"The Phosphorus and Sulphur Distribution and Culturable Bacterial In Time Chronosequence of Ex-Tin Mining Ponds","authors":"A. Kurniawan, O. Oedjijono, Tamad Tamad, U. Sulaeman","doi":"10.20884/1.oa.2018.14.3.473","DOIUrl":"https://doi.org/10.20884/1.oa.2018.14.3.473","url":null,"abstract":"The tin mining had caused ecological changes that can be occured to macro- and microecosystem. This article aims to study the pattern distribution of element of phosphorus (P) and sulphur (S) and also to identify culturable bacterial that were isolated form ex-tin mining ponds in time chronosequence. The elemets of P and S were detected by X-Ray Fluorescence (XRF) and the bacterials was isolated in medium agar and biochemistry identification by microbact. The concentration of element of P and S showed the average of P concentration increased in time chronosequnce of ex-tin mining ponds, whereas the average of S concentration showed dynamic pattern. In ex-tin mining pond with age < 1 year the average concentration of P was 33,725 mg.L-1 and S was 311,45 mg.L-1. In ex-tin mining pond with age 5-10 years were P (59,8 mg.L-1) and S (451,75 mg.L-1). In ex-tin mining pond with age > 15 years were P (67,44 mg.L-1) and S (386,125 mg.L-1). While, the culturable bacterials were Kurthia spp; Actinobacillus equuli; Bacillus amyloliquefaciens; Bacillus spp; Micrococcus sp; Enterobacter gergoviae; Veillonella sp; Enterobacter aerogenes; Moraxella bovis; Nitrobater spp; and Enterobacter agglomerans.","PeriodicalId":31102,"journal":{"name":"OmniAkuatika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48596006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Substitution of Fish Meal with Chicken Feather Silage Meal on Feed Can Improve Growth Performance of Striped Catfish (Pangasius hypopthalmus) 饲料中以鸡毛青贮粉替代鱼粉可提高下眼斑鲶鱼的生长性能

OmniAkuatika Pub Date : 2018-11-28 DOI: 10.20884/1.OA.2018.14.3.455

D. Rachmawati, I. Samidjan, D. Harwanto, Hadi Pranggono

{"title":"Substitution of Fish Meal with Chicken Feather Silage Meal on Feed Can Improve Growth Performance of Striped Catfish (Pangasius hypopthalmus)","authors":"D. Rachmawati, I. Samidjan, D. Harwanto, Hadi Pranggono","doi":"10.20884/1.OA.2018.14.3.455","DOIUrl":"https://doi.org/10.20884/1.OA.2018.14.3.455","url":null,"abstract":"The purpose of this research is to study the effect of substitution of fish meal with silage meal of chicken feathers on feed to protein digestibility, growth and survival rate of striped catfish (Pangasius hypopthalmus). The test fish used is catfish with an average weight of 2.31 ± 0.04 grams /fish. This research used experimental method with Completely Randomized Design, 5 treatments in triplicate. The treatments in this study were substitution of fish meal meal with different dose of chicken feather meal, namely A, B, C, D and E (0%; 25%; 50%; 75% and 100% silage meal of chicken feathers, respectively). Parameters observed included relative growth rate (RGR), feed conversion ratio (FCR), protein efficiency ratio (PER), Apparent Digestibility Coefficient of Protein (ADCP), and survival rate (SR) of catfish. The results showed that the substitution of fish meal with chicken feather silage meal was very significant (P <0.01) to RGR, FCR, PER, and ADCP, but no significant effect (P> 0.05) on SR of catfish. Dose 25% silage chicken feather meal in the feed is the best dose to improve the RGR and ADCP of catfish. Water quality during the study is still within a reasonable range for catfish culture.","PeriodicalId":31102,"journal":{"name":"OmniAkuatika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43126423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Influence of Meteorology-Oceanography Factors on Spatial Distribution of Oil and Grease Pollutant in Donan Estuary, Cilacap 气象-海洋因子对多南河口油类污染物空间分布的影响

OmniAkuatika Pub Date : 2018-11-28 DOI: 10.20884/1.OA.2018.14.3.555

M. Trenggono, M. Virginia, A. D. Syakti

{"title":"The Influence of Meteorology-Oceanography Factors on Spatial Distribution of Oil and Grease Pollutant in Donan Estuary, Cilacap","authors":"M. Trenggono, M. Virginia, A. D. Syakti","doi":"10.20884/1.OA.2018.14.3.555","DOIUrl":"https://doi.org/10.20884/1.OA.2018.14.3.555","url":null,"abstract":"Donan Estuary is one of the watershed impacted by anthropogenic activities which more particularly from industry and shipping releasing environmental pollutants i.e. oil and grease. Analysis of oil and grease distribution due to meteorology-oceanography factors used spatial analysis method from primary data was taken on June 2017. This research aims to understand the spatial distribution of the concentration of oil and grease in Donan Estuary and to asses the influence of meteorology-oceanography condition on oil and grease distribution. Our research showed oil and grease concentrations varied among the studied area. The higher concentration of oil and grease were found at station 3 while lower concentration was observed at station 12, closed to Penyu Bay. Accordingly, such differences might be due to the different sources of pollutants and different meteorology-oceanography parameter characteristics that affect oil and grease distribution. For instance, oil and grease concentration was inversely proportional to current velocity. Based on tidal current, oil and grease were move forward to the South, West and South East at low tide and move to North and West at high tide. We noted that the direction of wind gave the low influence to oil and grease movement. The high concentration of oil and grease in each station were followed by Total Suspended Solid (TSS) enhancement. On the other hand, temperature has an effect on evaporation process of oil and grease volatile fraction.","PeriodicalId":31102,"journal":{"name":"OmniAkuatika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46031942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Moina sp. Powder Supplementation as Artemia sp. Substitute Through Growth, Lysine, Histidine, Methionine, and Leucine Amino Acid Contents in Tiger Grouper x Camouflage Grouper Hybrid Larvae (Epinephelus fuscoguttatus x Epinephelus microdon) 虎斑石斑鱼与迷彩石斑鱼杂交幼虫赖氨酸、组氨酸、蛋氨酸和亮氨酸氨基酸含量变化对虎斑石斑鱼与迷彩石斑鱼杂交幼虫赖氨酸、组氨酸、蛋氨酸和亮氨酸含量的影响

OmniAkuatika Pub Date : 2018-11-28 DOI: 10.20884/1.OA.2018.14.3.433

Shobrina Silmi Qori Tartila, Arga Iswara, Frida Choirun Nisa, Nofita Irmayani Herlambang, M. A. Alamsjah, Agustono Agustono

{"title":"Moina sp. Powder Supplementation as Artemia sp. Substitute Through Growth, Lysine, Histidine, Methionine, and Leucine Amino Acid Contents in Tiger Grouper x Camouflage Grouper Hybrid Larvae (Epinephelus fuscoguttatus x Epinephelus microdon)","authors":"Shobrina Silmi Qori Tartila, Arga Iswara, Frida Choirun Nisa, Nofita Irmayani Herlambang, M. A. Alamsjah, Agustono Agustono","doi":"10.20884/1.OA.2018.14.3.433","DOIUrl":"https://doi.org/10.20884/1.OA.2018.14.3.433","url":null,"abstract":"Tiger Grouper x Cammouflage Grouper (TGCG) (Epinephelus fuscoguttatus x Epinephelus microdon) production is still low nowadays due to the insufficient price of the live feed supply during the larval phase, which is nauplii Artemia sp. One of the live feed types which is able to become a substitute of nauplii Artemia sp. is Moina sp., which has better lysine, histidine, methionine, and leucine contents, besides having the sufficient price for the supply itself. However, Moina sp. is unable to survive in the high salinity, thus it has to be produced as a powder. This condition leads to a further research whether to observe that the Moina sp. powder supplementation is able to become nauplii Artemia sp. substitute through the increased growth and the optimum better lysine, histidine, methionine, and leucine contents in TGCG larvae. The research was conducted using the complete randomized design experimental method. The result showed that Moina sp. powder is compatible as good substitute candidate of nauplii Artemia sp., as it increased the larval length growth, even it had no difference in weight growth, but it was also able to increase the larval lysine, histidine, methionine, and leucine contents.","PeriodicalId":31102,"journal":{"name":"OmniAkuatika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48965090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Different Doses of Fermented Organic Feed on the Growth Performance of Oithona sp. in Semi-Mass Culture Condition 半批量培养条件下不同剂量发酵有机饲料对伊托纳氏菌生长性能的影响

OmniAkuatika Pub Date : 2018-11-28 DOI: 10.20884/1.OA.2018.14.3.456

Suminto Suminto, D. Chilmawati, D. Harwanto

引用次数: 4

Distribution Of Batillaria Zonalis (Mollusca : Gastropoda) on Avicennia Marina (Forsk.) Vierh In The Coast Of Banggi, Rembang, Central Java 带小檗(软体动物:腹足纲)在海棠上的分布在邦吉海岸，伦邦，中爪哇

OmniAkuatika Pub Date : 2018-11-28 DOI: 10.20884/1.OA.2018.14.3.458

D. Ariyanto, D. Bengen, T. Prartono, Y. Wardiatno

引用次数: 3