Depik Jurnal最新文献_第5页

Antioxidant activity of silver nanoparticles synthesized using Holothuria atra extract 海棠提取物合成纳米银的抗氧化活性研究

Depik Jurnal Pub Date : 2022-12-08 DOI: 10.13170/depik.11.3.28485

I. Irwan, M. Ramadhaniaty, Eli Nurliza

引用次数: 0

The effect of cryoprotectant on the viability and motility of goldfish Carassius aurtus sperm after 48 hours refrigerated 冷冻保护剂对冷藏48小时金鱼鲫鱼精子活力和活力的影响

Depik Jurnal Pub Date : 2022-11-23 DOI: 10.13170/depik.11.3.28480

N. Nurlaili, I. Salma, K. Eriani, S. Maulida, Z. Muchlisin

{"title":"The effect of cryoprotectant on the viability and motility of goldfish Carassius aurtus sperm after 48 hours refrigerated","authors":"N. Nurlaili, I. Salma, K. Eriani, S. Maulida, Z. Muchlisin","doi":"10.13170/depik.11.3.28480","DOIUrl":"https://doi.org/10.13170/depik.11.3.28480","url":null,"abstract":"The principle of sperm preservation is to prolong the viability of spermatozoa by reducing the degree of metabolism during storage at low temperatures, and one method involved was a cryoprotectant as a sperm protector. This study aimed to determine the best type of cryoprotectant for refrigeration storage of goldfish Carrasius auratus sperm. A completely randomized design was used, and five types of cryoprotectant were tested, namely Methanol, Ethanol, Ethylene Glycol, Glycerol, and DMSO at a 10% concentration combined with 15% egg yolks. The sperm was diluted with Ringer’s solution and stored at 4⁰C for 48 hours. The ANOVA test revealed that cryoprotectant significantly affected the motility and viability of sperm after 48 hours of refrigeration (P0.05). The results showed that 10% DMSO combined with 15% egg yolk could maintain sperm motility and viability better than other treatments, with values of 85.80% and 86.50%, respectively, which were significantly different from the other treatments. Glycerol produced the second-best sperm quality with motility and viability values of 71.13% and 74.13%, respectively. Therefore, DMSO is the most effective cryoprotectant for refrigeration storage of goldfish sperm.","PeriodicalId":30450,"journal":{"name":"Depik Jurnal","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82108973","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

Plankton potential as bioindicator of trophic status of Lokop River Leuser Ecosystem 浮游生物潜力作为Lokop河Leuser生态系统营养状况的生物指标

Depik Jurnal Pub Date : 2022-11-23 DOI: 10.13170/depik.11.3.25034

A. Persada, S. P. Febri, K. Putri, Herlina Putri Endah Sari, R. Djamani

{"title":"Plankton potential as bioindicator of trophic status of Lokop River Leuser Ecosystem","authors":"A. Persada, S. P. Febri, K. Putri, Herlina Putri Endah Sari, R. Djamani","doi":"10.13170/depik.11.3.25034","DOIUrl":"https://doi.org/10.13170/depik.11.3.25034","url":null,"abstract":"Lokop is one of the villages in East Aceh which has a watershed in the Leuser Ecosystem. Human activities have the potential to disrupt the Trophic Status of Lokop River, such as the use of pesticides for agriculture, household waste and the use of potassium for fishing. It is necessary to research the quality of the waters in the Lokop River. The plankton community present in river waters can be an indicator of environmental pollution by analyzing the saprobic index. This study aims to determine the index of plankton diversity and water quality in the Leuser Ecosystem of the Lokop River through the saprobic index. The research was conducted at three stations. A sampling of plankton was taken in the form of a 10 cc filtrate and five replications were carried out for each study site. Water quality measurements include pH, TDS, Temperature, transparancy, depth, and current. 11 potential species can be used as pollution indicators in the Lokop River, namely Cladophora sp, Diatoma elongatum, Fragilaria capucina, Oedogonium sp., Gonatozygon sp, Lyngbya agardh, Melosira sp., Merismopedia punctata, Microspora sp, Pinnularia sp, Synedra ulna. The plankton diversity index is in the medium category. Based on the Saprobic Index, the level of pollution at the research site was not to lightly loaded of organic pollution and lowly loaded of organic pollution.Keywords:IsoprobikPlanktonBioindicatorLokop","PeriodicalId":30450,"journal":{"name":"Depik Jurnal","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74409864","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

Biological aspects of Diopatra sp. (Onuphidae, Polychaeta) collected from mangrove habitats of Jeruklegi, Cilacap Regency 在Jeruklegi, Cilacap Regency红树林生境中收集的Diopatra sp. (Onuphidae, polychata)的生物学特征

Depik Jurnal Pub Date : 2022-11-22 DOI: 10.13170/depik.11.3.25787

E. Wibowo, Iga Ayu Ratna Puspitasari, Atang Atang, J. Pamungkas

{"title":"Biological aspects of Diopatra sp. (Onuphidae, Polychaeta) collected from mangrove habitats of Jeruklegi, Cilacap Regency","authors":"E. Wibowo, Iga Ayu Ratna Puspitasari, Atang Atang, J. Pamungkas","doi":"10.13170/depik.11.3.25787","DOIUrl":"https://doi.org/10.13170/depik.11.3.25787","url":null,"abstract":"Diopatra species are members of the family Onuphidae (Polychaeta, Annelida) that are widely used as fishing bait. These tubicolous worms are common in particular mangrove areas of Cilacap. However, biological aspects of Diopatra sp. inhabiting the areas have not been studied. In the present work, we investigated several biological aspects of the worms, including the segment number, the body weight and the sex ratio, based on Diopatra samples collected from four mangrove habitats of Jeruklegi Village, Cilacap Regency, between June and July 2021. The results show that the average numbers of segments of Diopatra sp. obtained ranged from 195 to 216 segments, whereas the average body weights ranged from 2.03 to 3.12 g, and the average sex ratios ranged from 0.5 to 1.3. In general, the biological aspects of Diopatra sp. between sampling sites were relatively similar; this can be attributed to the similar environmental conditions at all sampling sites, including salinity (25–32 ppt), water temperature (30–32 oC), dissolved oxygen (6.4–8.8 ppm) and pH (7). While Diopatra worm farming is necessary so that local people do not rely on natural catch, a further taxonomic study is required to reveal the identity of this economically important local species.Keywords:Biological aspectDiopatraMangrove habitatPolychaetesTubicolous worms","PeriodicalId":30450,"journal":{"name":"Depik Jurnal","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81682552","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 effect of aquous extract of johar leaves (Senna siamea) injection on survival rate and blood profile of snakehead fish (Channa striata) 番泻叶水提物注射液对黑头鱼成活率和血谱的影响

Depik Jurnal Pub Date : 2022-11-22 DOI: 10.13170/depik.11.3.26841

A. Sutriana, Budianto Panjaitan, Tasya Luthfiah Siddik, F. Farida, M. Hanafiah, Nuzul Asmilia, R. Rosmaidar, R. Rahmad

{"title":"The effect of aquous extract of johar leaves (Senna siamea) injection on survival rate and blood profile of snakehead fish (Channa striata)","authors":"A. Sutriana, Budianto Panjaitan, Tasya Luthfiah Siddik, F. Farida, M. Hanafiah, Nuzul Asmilia, R. Rosmaidar, R. Rahmad","doi":"10.13170/depik.11.3.26841","DOIUrl":"https://doi.org/10.13170/depik.11.3.26841","url":null,"abstract":"Aqueous extract of johar leaf contains metabolite compounds such as flavonoids, sponins, tannins, phenols, anthraquinones, anthocyanins, and cardiac glycosides which can be used to substitute commercial antibiotics. The use of aqueous extract of johar leaf has been known to have antibacterial activity in vitro. This study aims to determine the effect of aqueous extract of johar leaves (Senna siamea) injection on survival and blood profile of snakehead fish (Channa striata) in vivo. This research was a laboratory study using a completely randomized design (CRD) with 5 treatments and 3 replications with a total sample of 75 snakehead fish. The fish in KA, KB, KC and KD groups were injected with aqueous extract of johar leaves with concentrations of 10%, 20%, 40%, and 60% respectively, while in KE group the fish was injected with distilled water (control). The parameters of this study were the survival rate and blood profile of snakehead fish. Blood hematology examination included calculation of erythrocyte count, hemoglobin level, and hematocrit percentage, leukocyte count, and thrombocyte count. The research data obtained were analyzed using one-way analysis of variance and followed by Duncan's Multiple Distance test. Injection of aqueous extract of johar leaf did not affect the survival rate of snakehead fish. However, hemoglobin and platelet levels significant decrease in the group given 60% concentration of aqueous extract of johar leaf. It can be concluded that aqueous extract of johar leaf at a concentration of 10%, 20%, 40% is safe to use in snakehead fish.Keywords:Johar leaves extractSnakehead fishBlood profileSurvival rate","PeriodicalId":30450,"journal":{"name":"Depik Jurnal","volume":"45 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90972707","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 influences of the Indian Ocean Dipole (IOD) on rainfall in South Aceh 印度洋偶极子(IOD)对南亚齐降水的影响

Depik Jurnal Pub Date : 2022-11-18 DOI: 10.13170/depik.11.3.25984

R. Permatasari, Y. Ilhamsyah, S. Purnawan, I. Setiawan, M. Ramadhaniaty, Sutarni Sutarni, Eko Cahyo Pristiwantoro

{"title":"The influences of the Indian Ocean Dipole (IOD) on rainfall in South Aceh","authors":"R. Permatasari, Y. Ilhamsyah, S. Purnawan, I. Setiawan, M. Ramadhaniaty, Sutarni Sutarni, Eko Cahyo Pristiwantoro","doi":"10.13170/depik.11.3.25984","DOIUrl":"https://doi.org/10.13170/depik.11.3.25984","url":null,"abstract":"This study aimed to examine the influences of the Indian Ocean Dipole (IOD) on rainfall in three districts in South Aceh. The analysis was undertaken using Dipole Mode Index (DMI) data and five years of rainfall (2016 to 2020) in West Labuhan Haji, Tapak Tuan, and Bakongan areas. This research employed a correlation analysis and the Principal Component Analysis, followed by Cluster Analysis to investigate the relationship between IOD and rainfall at the study location. The negative IOD occurred in 2016, and the positive IOD occurred in 2017, 2018, 2019, and 2020. The strongest positive DMI was in October 2019 (1.123˚C), while the strongest negative DMI was in July 2016 (0.661˚C). Generally, the sub-districts of West Labuhan Haji, Tapak Tuan, and Bakongan always have high rainfall. The highest rainfall in West Labuhan Haji was recorded in January 2017 (1014 mm/month), in Tapak Tuan in November 2017 (1073 mm/month), and in Bakongan in July 2020 (605 mm/month). The correlation between DMI and rainfall in the three locations shows different findings. Although it was very small, the IOD affected the rainfall in West Labuhan Haji, Tapak Tuan, and Bakongan. In West Labuhan Haji, the highest correlation was in lag 1 (0.188); in Tapak Tuan, the highest correlation was in lag 2 (0.156), while in Bakongan, the highest correlation was in lag 2 (-0.191). The correlations in these three locations are considered weak. Thus, the IOD is not the main factor affecting the rainfall in West Labuhan Haji, Tapak Tuan, and Bakongan. As South Aceh is located in windward, the orographic effect may influence high rainfall in this region.Keywords:DMIRainfallPrincipal component AnalysisWest Labuhan HajiTapak TuanBakongan","PeriodicalId":30450,"journal":{"name":"Depik Jurnal","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77991681","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

Reducing ammonia levels in catfish cultivation water using several aquatic plants 利用几种水生植物降低鲶鱼养殖水中氨含量

Depik Jurnal Pub Date : 2022-11-16 DOI: 10.13170/depik.11.3.27723

M. Mustaqim, Mutasar Mustasar, Y. Akmal, Mida Wahyuni, T. I. Fajri, Zaitun Ritaqwin

引用次数: 0

Study on shipyard location and model development 船厂选址与模型开发研究

Depik Jurnal Pub Date : 2022-11-16 DOI: 10.13170/depik.11.3.28347

T. Rizwan, H. Husaini, H. Husin, Akhyar Akhyar

引用次数: 0

Distribution of heavy metal (Pb, Cd and Hg) concentrations in sediment of Bone River, Gorontalo 戈龙塔洛骨河沉积物中重金属(Pb、Cd和Hg)的分布

Depik Jurnal Pub Date : 2022-11-02 DOI: 10.13170/depik.11.3.27775

M. K. Kadim, Endang Yuli, D. Arfiati, A. Hertika, Faizal Kasim