OmniAkuatika最新文献_第4页

Viability Test of Hydrocarbonoclastic Bacteria Consortium Entrapted on Sawdust Material 木屑材料捕获烃类碎屑菌群的生存试验

OmniAkuatika Pub Date : 2021-08-12 DOI: 10.20884/1.OA.2021.17.1.879

Devia Hartono Puteri, A. Nugraha, Y. Darmayati, A. D. Syakti

{"title":"Viability Test of Hydrocarbonoclastic Bacteria Consortium Entrapted on Sawdust Material","authors":"Devia Hartono Puteri, A. Nugraha, Y. Darmayati, A. D. Syakti","doi":"10.20884/1.OA.2021.17.1.879","DOIUrl":"https://doi.org/10.20884/1.OA.2021.17.1.879","url":null,"abstract":"Oil spills in the sea are generally prevented in various ways, one of them is the bioaugmentation method through bacterial entrapment on sawdust carriers. The entrapment of bacteria is one of the bacterial immobilization techniques. The potential of bacterial consortium on sawdust is still not widely used, especially in long-term storage. The purpose of this study was to obtain the viability of hydrocarbonoclastic bacterial consortium on sawdust after 0, 7, and 41 days of storage. The bacterial consortium consists of Bacillus aquimaris, B. megaterium, B. pumilus, Halobacillus trueperi, and Rhodobacteraceae bacterium. The samples were tested by culturing the immobilized bacterial consortium of 0, 7, and 41 days on falcon tubes containing crude oil and seawater. The viability of the immobilized bacterial consortium was tested for 28 days (days 0, 7, 14, 21, and 28) by enriched the bacterial populations periodically. The viability test was also supported by the measurement of environmental parameters on the 1 st day and the 28 th day such as DO, pH, salinity and, temperature. The results show that bacterial consortium in all storage periods was viable on sawdust carriers which related to the high number of bacterial populations on the 28 th day. The most viable bacterial consortium on sawdust was the 0-day storage (9.59 x 10 8 CFU/ml) which was indicated by the increases phase at the end of the day. It was proved that the bacteria are still productive and could degrade petroleum hydrocarbons.","PeriodicalId":31102,"journal":{"name":"OmniAkuatika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47450620","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: 1

Underwater noise of commercial vessels in Nusakambangan Strait and the relationship with distance 努萨坎班甘海峡商船水下噪声及其与距离的关系

OmniAkuatika Pub Date : 2021-08-04 DOI: 10.20884/1.OA.2021.17.1.902

A. Amron, R. Hidayat, Yessy Hurly Sefnianti, Ratna Juita Sari

{"title":"Underwater noise of commercial vessels in Nusakambangan Strait and the relationship with distance","authors":"A. Amron, R. Hidayat, Yessy Hurly Sefnianti, Ratna Juita Sari","doi":"10.20884/1.OA.2021.17.1.902","DOIUrl":"https://doi.org/10.20884/1.OA.2021.17.1.902","url":null,"abstract":"The existence of shipping activities can produce noise with certain characteristics as a main source of noise pollution in the waters. This research aimed to study the sound characteristics (frequency and sound pressure levels) of various type of commercial vessels crossing the Nusakambangan Strait, its relationship to the distance, and their potential impact to the marine biota. Noise frequency and sound pressure level were determined by spectral and envelope analysis from sound recording by hydrophone, while the type of vessel that produces noise and the distance from receiver were analyzed based on video recording. Relationship between frequency and sound pressure level to the distance were analyzed using simple linear regression. Results showed that frequency of noise is varied more clearly compared to the sound pressure level (1,7 – 20 kHz and 93.8 -117.8 dB re 1 μPa respectively) for each type of vessel (ro-ro ferry, small fishing boat, small ferry, tug boat and pilot boat) based on the size of the ship, engines type and power, loading capacity and vessels speed. Sound characteristics changed based on distance, where the frequency of sound increases (0.04 – 34.28 Hz.m-1) and different things for sound pressure level (0.04 – 0.11 dB dB re 1 μPa m-1). Estimated source level also differ from one ship to another (105 – 128 dB dB re 1 μPa). The existence of ship noise has the potential impacts on the presence of marine biota in these waters.","PeriodicalId":31102,"journal":{"name":"OmniAkuatika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45384320","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 fish meal replacement with lentil seed (Lens culinaris) in common carp (Cyprinus carpio) L. diet 扁豆籽鱼粉替代对鲤鱼日粮的影响

OmniAkuatika Pub Date : 2021-07-07 DOI: 10.20884/1.OA.2021.17.1.886

N. Abdulrahman, V. M. Ahmad, B. Hassan, Z. S. Abdulla, Derin Omer Muhammed-Ramzi, Hevar Aras Hama-Salih, Hemin Nuraddin Mohammed

{"title":"Effect of fish meal replacement with lentil seed (Lens culinaris) in common carp (Cyprinus carpio) L. diet","authors":"N. Abdulrahman, V. M. Ahmad, B. Hassan, Z. S. Abdulla, Derin Omer Muhammed-Ramzi, Hevar Aras Hama-Salih, Hemin Nuraddin Mohammed","doi":"10.20884/1.OA.2021.17.1.886","DOIUrl":"https://doi.org/10.20884/1.OA.2021.17.1.886","url":null,"abstract":"The aim of this study was to see how replacing fish meal with lentil seeds (LS) as an alternative plant protein source in diets for common carp Cyprinus carpio affected growth performance, feed consumption, and the composition of the fish's proximate carcass. The fish (100-106 g mean initial weight) were fed 0% (LS0), 5% (LS5), 10% (LS10), 15% (LS15) and 20% (LS20) of Lentil seed protein for 10 weeks. With increasing fishmeal replacement with lentil seed in the fish diet, there was a significant (p<0.05) increase in weight gain, relative and specific growth rate. T5 (20% LS) had a significantly (p<0.05) higher feed efficiency ratio and protein efficiency ratio than the other treated groups. There were no significant (p<0.05) differences in the mean values of proximate composition of fish fillets, such as moisture, crude protein, crude lipid and ash. Finally, no significant differences in muscle ratio (weight without viscera vs. weight without viscera & head) were found. The current study found that lentil seed can replace 20% of dietary fish meal in common carp diets for better growth.Keywords: lentil seed, fish meal, common carp, growth performance and feed utilization.","PeriodicalId":31102,"journal":{"name":"OmniAkuatika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44767296","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: 1

Stratification and Characteristic of Water Masses in Selayar Slope-Southern Makassar Strait 望加锡海峡南部Selayar斜坡水团的分层和特征

OmniAkuatika Pub Date : 2021-06-27 DOI: 10.20884/1.OA.2021.17.1.620

Isnaini Prihatiningsih, I. Jaya, A. Atmadipoera, R. Zuraida

引用次数: 0

The Role of Filter with Different Media Compositions on Water Quality and Survival of Pangasius (Pangasius sp.) in Recirculation Aquaculture System 不同滤料组成对循环水养殖系统中巴沙鱼水质及生存的影响

OmniAkuatika Pub Date : 2021-06-27 DOI: 10.20884/1.OA.2021.17.1.824

Ariska Nur Oktavia, S. Hastuti, D. Harwanto

{"title":"The Role of Filter with Different Media Compositions on Water Quality and Survival of Pangasius (Pangasius sp.) in Recirculation Aquaculture System","authors":"Ariska Nur Oktavia, S. Hastuti, D. Harwanto","doi":"10.20884/1.OA.2021.17.1.824","DOIUrl":"https://doi.org/10.20884/1.OA.2021.17.1.824","url":null,"abstract":"The high market demand for Pangasius (Pangasius sp.) has encouraged farmers to adopt a cultivation system with high stocking densities and high feeding rates. This causes fish farming waste to increase and ammonia in the waters also increases, resulting in a decrease in water quality. One of the efforts to overcome this problem is by using Recirculation Aquaculture System (RAS). This study aims to examine the effect of filters with different media compositions in RAS of Pangasius. Test fish, average weight of 4.59 g, kept for 30 days in aquarium with a density of 1.15 g.L-1. The feed is given at satiation, twice a day. There were five treatments and four replications during study. The treatments were the difference composition of filter media, i.e. A (100% zeolite), B (25% net + 75% zeolite), C (50% net + 50% zeolite), D (75% net + 25% zeolite), and E (100% net). Dacron was used as a mechanical filter in all treatments. The results showed that the composition of different filter materials had a significant effect (P <0.05) on Survival Rate (SR), Total Amount of Feed Fed (TFF), Relative Growth Rate (RGR), and Feed Conversion Efficiency (FCE). The best performance was showed by media biofilter composition of 25% nets + 75% zeolite, with the value of VTR (Volumetric Total Ammonia Nitrogen Removal) were 55.45-66.32 g.m-3.day-1, SR was 93.75%; TFF was 124.84 g; RGR was 2.13%.day-1, and FCE was 46.87%. Various different compositions of net and zeolite as filter media on RAS were able to manage TAN below tolerance limit.Keywords: catfish, recirculation system, filter composition, dacron, net, zeolite.","PeriodicalId":31102,"journal":{"name":"OmniAkuatika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47407357","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

Productivity and Distribution of Fish Aggregation Devices (FADs) in Outer Ambon Bay Waters, Indonesia 印度尼西亚外安汶湾水域鱼类聚集装置的生产力和分布

OmniAkuatika Pub Date : 2021-06-27 DOI: 10.20884/1.OA.2021.17.1.777

D. Matrutty, Jacobus Paillin, S. R. Siahainenia, W. Waileruny, K. Rutumalessy

{"title":"Productivity and Distribution of Fish Aggregation Devices (FADs) in Outer Ambon Bay Waters, Indonesia","authors":"D. Matrutty, Jacobus Paillin, S. R. Siahainenia, W. Waileruny, K. Rutumalessy","doi":"10.20884/1.OA.2021.17.1.777","DOIUrl":"https://doi.org/10.20884/1.OA.2021.17.1.777","url":null,"abstract":"Distribution of small pelagis fish in FADs, and produktivity of FADs in AmFADs are usually used by fishermen to concentrate fish for an efficient catching activity. However, the number, distance, and distribution in the waters need to be assessed in relation to the productivity of the FADs in order to maintain the sustainability. This study was aimed to map the distribution of FADs; to analyze the distribution of species, number and size of fish associated with FADs; and to calculate FAD productivity based on distribution in the Outer Ambon Bay waters. Data was obtained by observation and interview. Field observation, including: coordinates and number of FADs, species, number and size of fish. The distance and distribution of FADs, was mapped using software (Argis web), while the productivity of FADs was analyzed base on catch per unit effort (CPUE). The result, FAD in Outer Ambon Bay waters was found 25 unit and the average distance of FAD was obtained 0.47 nautical miles, and the placement of the device was irregular. The placement pattern of FADs were generally straight to coastline. Small pelagic fish was found 7 species and the 5 of the dominant species were obtained Decapterus sp, Selar crumenophthalmus, Rastreliger sp, Sardinella sp and Selaroides sp. The species were unevenly spread at each FAD with quite varied sizes. FAD productivity showed that the highest productivity was found in the middle group FAD at Ambon Bay waters.Keywords: Distance, size, small pelagis, productivitybon Bay","PeriodicalId":31102,"journal":{"name":"OmniAkuatika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42352781","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

The Growth of Seriatopora hystrix (Dana, 1846) Transplant with Differences of Fragments Size and Planting Position Seriatopora hystrix (Dana, 1846)移栽中片段大小和种植位置差异的生长

OmniAkuatika Pub Date : 2021-06-27 DOI: 10.20884/1.OA.2021.17.1.815

Carissa Paresky Arisagy, R. Adharini, E. Setyobudi

{"title":"The Growth of Seriatopora hystrix (Dana, 1846) Transplant with Differences of Fragments Size and Planting Position","authors":"Carissa Paresky Arisagy, R. Adharini, E. Setyobudi","doi":"10.20884/1.OA.2021.17.1.815","DOIUrl":"https://doi.org/10.20884/1.OA.2021.17.1.815","url":null,"abstract":"Transplantation of coral reefs requires sufficient fragments but must still ensure the sustainability of coral donors. This research aimed to know the survival rate and growth rate of transplant corals with different fragment sizes and planting positions and to determine the most effective and efficient transplantation methods of the Seriatopora hystrix. The research was conducted from January to April 2016 in Serangan Island waters Denpasar Bali (1-2 m depth). The method used was a field experiment with variations of planting position (vertical, horizontal) and fragment sizes (3, 5, 7 cm). The results showed a high survival rate (98.3%) of the transplanted S. hystrix with planting position and fragment sizes variation. The variation of planting position and fragment sizes were significantly affected the length growth rate of the S. hystrix (p <0.05). The vertical planting position showed better growth compared to the horizontal planting position. The transplantation of coral with initial fragment sizes of 5 and 7 cm showed a higher growth rate than the fragment size of 3 cm. However, statistical analysis revealed no significant difference between initial fragment sizes of 5 and 7 cm. Therefore, this study demonstrated the most effective and efficient for S. hystrix transplantation showed in the vertical position with the initial fragment size of 5 cm.Key words: coral bleaching, initial fragment, tropical, zooxanthellae","PeriodicalId":31102,"journal":{"name":"OmniAkuatika","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41721823","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: 1

Heavy Metal (Pb, Hg) Extent in Mud Crab (Scylla serrata) in Cengkok Coastal Waters, Banten Bay, Indonesia 印度尼西亚万丹湾成角沿岸水域泥蟹(Scylla serrata)重金属(Pb、Hg)含量

OmniAkuatika Pub Date : 2020-12-31 DOI: 10.20884/1.OA.2020.16.2.810

E. Noviani, S. Sulistiono, A. Samosir

引用次数: 14

Spatio-Temporal Assessment of Zooplankton Fauna of Uta Ewa Estuary, Akwa Ibom State, Nigeria. 尼日利亚阿夸伊博姆州Uta Ewa河口浮游动物区系的时空评价

OmniAkuatika Pub Date : 2020-12-31 DOI: 10.20884/1.OA.2020.16.2.822

U. E. Jonah, Emeka Donald Anyanwu, D. A. Avoaja

{"title":"Spatio-Temporal Assessment of Zooplankton Fauna of Uta Ewa Estuary, Akwa Ibom State, Nigeria.","authors":"U. E. Jonah, Emeka Donald Anyanwu, D. A. Avoaja","doi":"10.20884/1.OA.2020.16.2.822","DOIUrl":"https://doi.org/10.20884/1.OA.2020.16.2.822","url":null,"abstract":"Estuaries are influenced by the mixture of river water with seawater; creating unique ecosystems with several physical and chemical processes affecting the water quality. Spatial and temporal assessment of the composition, abundance, and distribution of zooplankton fauna of Uta Ewa Estuarine water system was carried out between May 2019 and February 2020 to assess the effects of anthropogenic activities on the zooplankton assemblage. Water and Zooplankton samples were collected from three (3) stations using standard procedures. Some parameters like water temperature, dissolved oxygen, hydrogen-ion, electrical conductivity, and turbidity were determined in-situ. The ranges of the physico-chemical parameters were: water temperature (24.9-25.3oC), EC (62.3-70.9mS/m), pH (6.5-6.7), turbidity (12.0-28.0NTU), DO (3.8-4.7mg/L), BOD (2.3-3.2mg/L), phosphate (3.2-5.2mg/L), and nitrate (3.0-6.3mg/L). ANOVA showed a significant difference (p<0.05) in the spatial and temporal means values of some parameters. A total of 1,067 individuals from 30 zooplankton taxa and 4 taxonomic groups were recorded. Rotifers (33.4%) were the dominant group, followed by protozoa (32.9%), copepods (20.9%) and cladocerans (13.8%). Station 1 had the highest abundance (388 individuals), station 2 (303 individuals) and station 3(375 individuals). The higher number of individuals (193) was recorded in August 2019. The biodiversity indices pointed to slightly polluted to stable environment. This study showed that the water quality and zooplankton community was influenced by anthropogenic activities both spatially and temporally but season also played a major role in the temporal variation. In conclusion, the water quality was deteriorating due to anthropogenic activities, which in turn affected the structure of zooplankton community. Keywords: Abundance, Assessment, Zooplankton, Physicochemical, Estuary","PeriodicalId":31102,"journal":{"name":"OmniAkuatika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46854570","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: 1

Species Composition and Distribution of Tropical Marine Macroalgae In The Pari Island Reef Cluster, Jakarta 雅加达帕里岛珊瑚礁群热带海洋大型藻类的物种组成和分布

OmniAkuatika Pub Date : 2020-12-31 DOI: 10.20884/1.OA.2020.16.2.819

F. Zulpikar, T. Handayani, J. Renyaan, H. Rifai, B. Perisha

{"title":"Species Composition and Distribution of Tropical Marine Macroalgae In The Pari Island Reef Cluster, Jakarta","authors":"F. Zulpikar, T. Handayani, J. Renyaan, H. Rifai, B. Perisha","doi":"10.20884/1.OA.2020.16.2.819","DOIUrl":"https://doi.org/10.20884/1.OA.2020.16.2.819","url":null,"abstract":"The objective of this study was to analyze the species composition and distribution of marine macroalgae at Pari Island reef cluster-Seribu Islands reef system Jakarta based on specimen information available in Reference Collection of Research Center for Oceanography (RCO-LIPI). The Macroalgae specimens were collected irregularly by researchers during marine expedition projects from 1973 until 2014. Taxonomic identification of specimens was conducted in 2014, validation of species names was updated in May 2020 through www.macroalgaebase.org. The floristic composition value of macroalgae was analyzed using the C/P, R/P, and (R+C)/P ratio. Bray-Curtis similarity index analyzes were performed to visualize differences in macroalgae species from the different islands. We recorded a total of 41 species from 25 genus and 18 families. Rhodophyta represented the most significant number of taxa with 20 species (49%), followed by Chlorophyta with 11 species (27%) and Phaeophyta with ten species (24%). In this study, we found that Sargassum polycystum, Gracilaria salicornia, Amphiroa fragilisima, and Halimeda opuntia are dominant species in the study area. The highest macroalgae diversity found in Kongsi Island with 33 species, while the lower diversity found in Pari Island with five species. Bray-Curtis Similarity index showed that Kongsi Island and Burung Island have the highest similarity value with 29,26%, while Tikus Island and Pari Island have the lowest similarity value with 11,76%. The macroalgae distribution in the Pari island reef cluster influenced by the difference of substrate profile and environmental pressure derived from human activities. Proper management of macroalgae resources is necessary to preserve the sustainability of the macroalgae ecosystem. Keywords: macroalgae, composition, distribution, Pari Island","PeriodicalId":31102,"journal":{"name":"OmniAkuatika","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49082343","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: 4