. Suratno
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PRELIMINARY STUDY OF LARVAL DEVELOPMENT ORYZIAS JAVANICUS IN INDONESIA Puspitasari, Rachma; Suratno, .
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 9 No. 1 (2017): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (319.647 KB) | DOI: 10.29244/jitkt.v9i1.17920

Abstract

Java medaka Oryzias javanicus potentially developed as test organism, represents the coastal region because it has a high adaptability in freshwater, brackishwater and marine environments. Utilization of it as a test organism has some obstacles such as lack of number of test organisms with same size or age. The fulfillment of number can be solved if the test organism is cultivated exclusively in the laboratory. This study was a preliminary study to get information about suitable salinity for spawning and hatching. Parameter observed were spawning ability in 0 and 20 ppt and hatching rate of egg among 0. 15 and 30 ppt and development of larval fish in 0 ppt. Result indicated that the fish was be able to spawn in 0 and 20 ppt. Eggs were hatched within 9 days in 30 ppt, faster than in freshwater and 15 ppt. In general, O. javanicus was be able to spawn either in freshwater or seawater, but there are differences in the behavior of fish in the laying of egg. Fish will carried their eggs in the abdomen in freshwater, while 20 ppt salinity fish tends to release the eggs. O. javanicus be able to live and lay eggs on freshwater and seawater. Selection of salinity is adjusted to test requirement in egg phase, pascalarva or adult. In general, breeding of fish easier and faster done in fresh water while hatching eggs take place more quickly in high salinity.Keywords: Indonesia, Java Medaka, Oryzias javanicus, test organism
Pengaruh Kelainan Refraksi terhadap Terjadinya Vertigo pada Pasien di Poli Mata RSUD Dr. Moewardi Prawitasari, Fitri; Suratno, .; Indrakila, Senyum
Nexus Kedokteran Klinik Vol 2, No 1 (2013): Nexus Kedokteran Klinik
Publisher : Fakultas Kedokteran Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (34.903 KB)

Abstract

Background: Refractive error occurs when the lights do not fall exactly at retina and cause blur vision. Visual system disorder causes balance disorder with vertigo symptom. This research aims to know the effect of refractive error on vertigo to patients at Ophthalmology Department of Dr. Moewardi Hospital. Methods: This research was observational-analitic with cross-sectional approach. The samples for this research were the patients at Ophthalmology Department of Dr. Moewardi Hospital aged 18-58 years old who has refractive error such as miopia, hipermetropia, or astigmatism while the second group (control) were people  aged 18-58 years old without refractive error. Those samples were given questionnaire Vertigo Symptom Scale-Short Form and were tested for the balance to find out vertigo. Data was analyzed with Fisher Exact Test. Results: After the research to 25 patients with refractive error, 6 of 25 patients had vertigo. The second group, samples without refractive error had no vertigo. The result of Fisher Exact Test showed p value= 0,022 (p<0,05). Conclusions: There was effect of refractive error on vertigo to patients at Ophthalmology Department of Dr. Moewardi Hospital. Keywords: Refractive error, vertigo 
Pengaruh Kelainan Refraksi terhadap Terjadinya Vertigo pada Pasien di Poli Mata RSUD Dr. Moewardi Prawitasari, Fitri; Suratno, .; Indrakila, Senyum
Nexus Kedokteran Klinik Vol 2, No 1 (2013): Nexus Kedokteran Klinik
Publisher : Fakultas Kedokteran Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (34.903 KB)

Abstract

Background: Refractive error occurs when the lights do not fall exactly at retina and cause blur vision. Visual system disorder causes balance disorder with vertigo symptom. This research aims to know the effect of refractive error on vertigo to patients at Ophthalmology Department of Dr. Moewardi Hospital. Methods: This research was observational-analitic with cross-sectional approach. The samples for this research were the patients at Ophthalmology Department of Dr. Moewardi Hospital aged 18-58 years old who has refractive error such as miopia, hipermetropia, or astigmatism while the second group (control) were people  aged 18-58 years old without refractive error. Those samples were given questionnaire Vertigo Symptom Scale-Short Form and were tested for the balance to find out vertigo. Data was analyzed with Fisher Exact Test. Results: After the research to 25 patients with refractive error, 6 of 25 patients had vertigo. The second group, samples without refractive error had no vertigo. The result of Fisher Exact Test showed p value= 0,022 (p<0,05). Conclusions: There was effect of refractive error on vertigo to patients at Ophthalmology Department of Dr. Moewardi Hospital. Keywords: Refractive error, vertigo