Judul: Pengaruh Curah Hujan, Angin, dan Kebakaran Hutan terhadap Sebaran dan Konsentrasi Karbon Monoksida
Abstrak: Karbon monoksida (CO) merupakan salah satu senyawa yang diemisikan dari kebakaran hutan dan dapat mengganggu kesehatan bahkan menyebabkan kematian. Penelitian ini bertujuan untuk menggambarkan sebaran spasial dan temporal CO serta kaitannya dengan curah hujan, angin, dan kebakaran hutan. Studi kasus dilakukan di wilayah Kota Palangka Raya tahun 2019. Pengolahan data dilakukan dengan metode penginderaan jauh. Data titik panas diperoleh dari situs FIRMS digunakan pada selang kepercayaan sebesar ≥ 80% untuk mengasumsikan kebakaran hutan, data konsentrasi CO dan angin diperoleh dari situs Giovanni NASA, dan data curah hujan diperoleh dari BMKG Tjilik Riwut Palangka Raya. Hasil penelitian menunjukkan bahwa konsentrasi CO tertinggi terjadi pada September (525 μg/m3) dan terendah pada bulan Juni (104 μg/m3). Konsentrasi CO tertinggi berada di wilayah timur Kecamatan Bukit Batu dan Jekan Raya, dan terendah di Kecamatan Rakumpit. Konsentrasi CO pada musim kemarau (210 μg/m3) lebih tinggi dari musim hujan (116 μg/m3). Jumlah titik panas tertinggi (450 titik) dan kecepatan angin tertinggi (0,73 m/s) terjadi pada bulan September, bertepatan dengan konsentrasi CO tertinggi. Korelasi CO dengan curah hujan bernilai -0,33, dengan jumlah titik panas bernilai 0,94, dan dengan kecepatan angin bernilai 0,73.
Keyword: Angin, Curah hujan, Karbon monoksida, Kebakaran hutan, Kota Palangka Raya

Judul: Analysis of Carbon Monoxide (CO) Distribution in Pekanbaru City and Its Surroundings Due to Forest Fires
Abstrak: Salah satu polutan yang dihasilkan dari asap kebakaran yakni karbon monoksida (CO). Tahun 2015 terjadi kebakaran hutan terbesar sedangkan tahun 2017 luas kebakaran kecil. Indikator yang dapat dilihat sebagai penentu tinggi atau rendahnya intensitas kebakaran hutan yakni hotspot. Polutan CO yang dihasilkan dapat mengganggu kesehatan manusia bahkan sampai di tingkat kematian. Penelitian dilakukan untuk membandingkan sebaran polutan CO tahun 2015 dan tahun 2017, serta melihat korelasi antara jumlah titik panas dengan konsentrasi CO. Data yang digunakan bersumber website giovanni dan firms modaps nasa. Hasil penelitian menunjukkan bahwa terdapat perbedaan signifikan persebaran polutan CO di tahun 2015 dengan 2017. Tahun 2015 diselimuti dengan polutan CO lebih tinggi dibandingkan dengan tahun 2017. Nilai tertinggi konsentrasi CO tahun 2015 sebesar 226,949 µg/m3 sedangkan nilai polutan tertinggi CO tahun 2017 sebesar 109,966 µg/m3. Hubungan antara jumlah titik panas dengan nilai konsentrasi CO tahun 2015 dan 2017 di Kota Pekanbaru dan sekitarnya masing-masing sebesar -0,585 dan -0,602. Konsentrasi CO di Pekanbaru lebih tinggi disebabkan pergerakan angin dan jumlah kendaraan., One of the pollutants produced from fire smoke is carbon monoxide (CO). In 2015 there was the largest forest fire, while in 2017 the fire area was small.. An indicator that can be seen as a determinant of high or low forest fires is hotspots. The resulting CO pollutants can interfere with human health and even lead to death. The study was conducted to compare the amount of CO pollutants in 2015 and 2017, and to see the correlation between hotspots and CO concentrations. The data used is sourced from the giovanni website and firms modaps nasa. The results showed that there was a significant difference in the distribution of CO pollutants in 2015 and 2017. 2015 was covered with higher CO pollutants than 2017. The highest value of CO concentration in 2015 was 226.949 g/ m3 while the highest pollutant value of CO in 2017 was 109.966 g/m3 . The relationship between the number of hotspots and the value of CO concentration in 2015 and 2017 in Pekanbaru City and its surroundings are -0.585 and -0.602, respectively.The higher CO concentration in Pekanbaru is caused by wind movement and number of vehicles.
Keyword: CO concentration, forest fires, hotspots, Riau Province

Judul: Transplantasi sel testikular ikan gurame pada ikan nila
Abstrak: One of the constraints in the cultivation of giant gouramy is the lack of fry availability, necessitating the development of fry production engineering technology to address these issues. Engineering technology of fry production through the surrogate broodstock generated by testicular cells transplantation technique has been developed in salmonid. Testicular cells transplantation technology requires a suitable recipient that can accept and support the development of spermatogonia donor cell. This study examined the potential of Nile tilapia as a recipient for donor giant gouramy cells by observing its colonization in the gonads of Nile tilapia. Fish donor of 598,82 grams body weight with Gonado Somatic Index (GSI) of 0,013% and spermatogonial cells percentage of 28,22% was used. Testicular cells in amount of 20.000 cells/0,5 μl PBS were injected into peritoneal cavity of 4-day-old tilapia larvae. The success of transplantation and donor cell colonization were analyzed using PCR method with DNA template that have been extracted from tilapia larvae of 1 day post injection and the gonad of 2 months old fish. PCR was performed using a set of specific primer for the giant gouramy growth hormone gene and tilapia β-actin as an internal control of DNA loading. PCR results showed that the transplanted tilapia has a DNA band in the same size with giant gouramy, and not in untransplanted control. The success rate of transplantation in larvae was 100% (5/5) and the percentage of individual recipients containing donor cells in their gonad was 60% (3/5). This indicates that donor cells from giant gouramy was successfully injected and can be colonized in the gonads of Nile tilapia, so the Nile tilapia potentially be used as recipient for giant gouramy testicular cells transplantation. Further analysis needs to be conducted to observe the ability of spermatogonial cells develop into sperm and eggs in the gonad of tilapia recipient.
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