Judul: Effect of Salinity on Heart Rate of Eel (Anguilla bicolor)
Abstrak: Sidat merupakan salah satu biota perairan yang menjadi potensi pengembangan penangkapan, budidaya, dan konservasi. Sidat merupakan hewan katadromus yang melakukan migrasi ke laut untuk memijah, sehingga perlu diketahui perubahan kondisi fisiologisnya ketika akan bermigrasi dari hulu ke laut dalam akibat perubahan salinitas. Tujuan penelitian ini untuk mengetahui pengaruh salinitas terhadap detak jantung dan waktu pulih sidat. Detak jantung sidat ukuran 33-49 cm sebanyak 45 ekor diobservasi menggunakan teknik elektrokardiogram (EKG) dengan perlakuan empat salinitas yang berbeda yaitu 8, 16, 25, dan 33 ppt. Detak jantung direkam menggunakan karbon konduktor yang dihubungkan dengan bio-amplifier dan osiloskop. Hasil penelitian menunjukkan rata-rata detak jantung mengalami penurunan (brakikardia) terhadap perbedaan salinitas. Detak jantung sidat selama perlakuan adalah 68±2,01 dpm (salinitas 8 ppt), 66±3,62 dpm (salinitas 16 ppt), 64±4,29 dpm (salinitas 25 ppt), dan 59±4,52 dpm (salinitas 33 ppt). Detak jantung sidat (yellow eel) tidak berpengaruh signifikan terhadap perbedaan salinitas (p>0,05). Waktu pulih sidat berpengaruh signifikan terhadap perbedaan salinitas (p<0,05). Waktu pulih sidat semakin lama seiring dengan peningkatan salinitas., Eel is one of the aquatic biota that has the potential to develop capture, aquaculture, and conservation. Eels are catadromous animals that migrate to the sea to spawn, so it is necessary to know the changes in their physiological conditions when migrating from upstream to deep sea due to changes in salinity. The purpose of this research was to determine the effect of salinity on heart rate and recovery time of eels. Heart rate of eel with size 33-49 cm (n=45) was monitored using an electrocardiogram (ECG) technique with four different salinity treatment at 8, 16, 25, and 33 ppt. Heart rate was observed using a carbon conductor connected to a bio-amplifier and an oscilloscope. The average heart rate of eels was decreased (brachycardia) due to differences in salinity. The heart rate of eels during treatment was 68 ± 2.01 bpm (8 ppt salinity), 66 ± 3.62 bpm (16 ppt salinity), 64 ± 4.29 bpm (25 ppt salinity), and 59 ± 4.52 bpm (salinity 33 ppt). Heart rate of yellow eel didn’t significantly influence the difference in salinity (p>0,05). Eels heart rate recovery time was a significant effect due to difference in salinity (p<0,05). Recovery time of eel are getting longer on the salinity increases.
Keyword: detak jantung, salinitas, sidat

Judul: Temperature Effect on Heart Rate of Eel (Anguilla bicolor)
Abstrak: Perubahan suhu mempengaruhi perubahan perilaku ikan dan salah satu faktor penting untuk kelangsungan hidup ikan. Suhu optimum suatu spesies dapat dijadikan sebagai informasi keberadaan ikan untuk data perikanan tangkap. Detak jantung ikan dapat dijadikan sebagai indikator untuk mengetahui pengaruh suhu terhadap fisiologi ikan termasuk juga ikan Sidat (Anguila bicolor). Tujuan penelitian ini adalah menentukan pengaruh suhu terhadap detak jantung ikan sidat dan lama waktu pulihnya. Data detak jantung dikumpulkan dengan pengamatan yang dilakukan pada ikan sidat (Anguilla bicolor) sebanyak 40 ekor berukuran 36±0.30 cm dengan bobot tubuh <200 g pada suhu yang berbeda 21, 25, dan 31°C. Pengamatan detak jantung dilakukan menggunakan teknik elektrokardiogram (EKG). Hasil rekaman detak jantung dihitung menggunakan frame-by-frame video analisis. Pengaruh suhu terhadap detak jantung dan waktu pulih diolah menggunakan analisis statistik rancangan acak lengkap. Hasil penelitian menunjukkan bahwa detak jantung sidat pada suhu 21, 25, dan 31°C berturut-turut yaitu sebesar 40±1.61, 70±3.91, dan 122±7.36 dpm. Suhu berpengaruh secara signifikan (P<0.05) terhadap detak jantung ikan sidat dengan nilai Q10 semakin rendah, yaitu 2.77 dan 2.25. Waktu pulih ikan sidat pada perlakuan suhu rendah lebih lama dibandingkan dengan pada perlakuan suhu tinggi., Changes in temperature affect changes in fish behaviour and one of important factors for fish survival. The optimum temperature of a species can be used as information on fish existence for capture fisheries data. Heart rate of fish can be used as an indicator to know the effect of temperature on fish physiology. The aim of this study are to determine the effect of temperature on fish heart rate and its recovery time. Heart rate data were collected by observing on 40 eels (Anguilla bicolor) measuring 36±0.30 cm and body weight <200 g at different temperatures of 21, 25, and 31°C. The observation of heart rate was monitored by electrocardiograph (ECG) technique. The results from video monitoring was calculated using frame-by-frame video analysis. The effect of temperature on heart rate and recovery time was processed using statistical analysis with complete randomized design. The results showed that the eel heart rates at 21, 25, and 31°C were 40±1.61, 70±3.91, and 122±7.36 bpm, respectively. Temperature significantly affected (P<0.05) to the heart rate of eel with the lower Q10 value, 2.77 and 2.25. Recovery time of eel heart rate at low temperature was longer than high temperature.
Keyword: Eel (Anguilla bicolor), heart rate, Q10, recovery time, temperature

Judul: Development of IPB Linux Open Source Distribution for Business (ILOSbiz)
Abstrak: The objective of this research is to develop a Linux distribution, ILOSbiz, targeted for office use. This distribution is built through remastering another established distribution, similar to the previously developed ILOS in 2008. In order to know the needed applications to include in ILOSbiz, a survey was conducted involving 15 IPB staffs. We experimented with OpenSUSE and PCLinuxOS using KIWI Image System and My LiveCD to remaster, respectively. PCLinuxOS with My LiveCD was chosen for the final ILOSbiz as it gave better flexibility in the remastering. Comparison with ILOS shows that ILOSbiz has better hardware support.
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