Browsing by Author "Eddiwan, Eddiwan"

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    Nilai Ekonomi Mangroves: Sebuah Meta-Analisis
    (wahyu sari yeni, 2019-01-03) Hanifah, Abu; Eddiwan, Eddiwan
    This article presents a synthesis of literature that evaluates mangrove ecosystems through metaregression analysis. The main contribution of this study is the first meta-analysis that only focuses on mangrove forests, as one type of wetland in Riau province, Indonesia. The number of studies included in the regression analysis was 44 for a total of 145 observations. We include several regressions with the aim of overcoming outliers in the data as well as possible correlations between observations from the same study. We also investigate possible interaction effects between service types and GDP per capita. Our findings show that mangroves show a decrease in scale results, that GDP per capita has a positive effect on mangrove values, using replacement costs and contingency valuation methods produce higher estimates than using other methods. We also found that there were statistically significant interaction effects that affected the data. Finally, the results of this study indicate that using a weighted regression can provide better compatibility than the others. However, in terms of forecast performance, we found that all the models that were estimated to be carried out, in the same way, were unable to conclusively conclude whether one of the performances could exceed the others
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    Pengaruh Penyuntikan Ovaprim Terhadap Daya Rangsang Ovulasi Dan Kualitas Telur Ikan Lele Lokal (Clarias meladerma Blkr)
    (wahyu sari yeni, 2019-01-03) Sukendi, Sukendi; Putra, Ridwan Manda; Eddiwan, Eddiwan
    The purpose of this study was to determine the effect of injecting hCG on the stimulation power of ovulation and the quality of local catfish eggs (Clarias meladerma Blkr). This research was conducted in March - June 2018 in the Laboratory of Fish Breeding and Breeding, Department of Aquaculture, Faculty of Fisheries and Marine, University of Riau. The design used was a completely randomized design (CRD) with 5 treatments and 3 replications. The treatment given was injection of ovaprim with different doses, namely P1 = injection of ovaprim with a dose of 0.4 ml / kg body weight, P2 = injection of ovaprim with a dose of 0.5 ml / kg body weight, P3 = injection of ovaprim with a dose 0.6 ml / kg body weight, P4 = injection of 0.9% physiological NaCl solution 1 ml / kg body weight (as a control). Test parameters measured consisted of latent time, number of eggs from stripping, egg diameter, egg maturity and ovisomatic index. The results showed that the best treatment dose to increase ovulation stimulation power and egg quality of local catfish was the treatment of injecting 0.5 ml ovaprim / kg body weight resulting in a latent time of 6 hours, the number of eggs striping by 4176 grains, egg diameter of 1, 8 mm, the maturity of the eggs is 90% and the ovisomatic index is 13.12%.
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    PENGARUH VARIABEL KUALITAS AIR TERHADAP PRODUKTIVITAS UDANG VANAME (LITOPENAEUS VANNAMEI) DI KAWASAN PERTAMBAKAN DI DESA SUNGAI PINANG, KECAMATAN LINGGA TIMUR, KABUPATEN LINGGA, PROVINSI KEPULAUAN RIAU
    (2019-11) Eddiwan, Eddiwan; Sukendi, Sukendi; Siregar, Yusni Ikhwan
    Sungai Pinang Village is one of the villages in Lingga Timur District, Lingga Regency, Riau Islands, which is developing into a fishery production center. The development of aquaculture business, especially shrimp farming has grown rapidly, but on the other hand, there is a change in the quality and quality of the waters. Water quality is very influential on the growth of vaname shrimps (Litopenaeus vannamei) that are kept in ponds so that the impact on high and low productivity of vaname shrimps. Therefore, this study examined several variables of water quality that affect the productivity of vaname shrimp in ponds. This research was carried out in a fishpond area that is currently operational in Sungai Pinang Village, East Lingga District, Lingga Regency. The method used is the survey method and interviews with respondents in the Sungai Pinang village through the submission of the questionnaire. This interview is needed to get primary data on-farm productivity. While the water quality data obtained by direct measurement at the pond location and pond water sources, by taking water samples, which are then analyzed in the Aquatic Biology laboratory. As independent variables are water quality, namely temperature, dissolved oxygen (DO), salinity, pH, total suspended solids/total suspended solids (TSS), turbidity, nitrate, nitrite, phosphate and total organic matter (BOT). While the dependent variable is vaname shrimp productivity. The 'best' multiple regression model selections are based on the backward method. The results showed vaname shrimp productivity in the range of 133.3-3,000.0 kg/ha with an average of 690.38 kg/ha. Water quality variables that have a positive effect on vaname shrimp productivity are nitrates and phosphates. While water quality variables that negatively affect the productivity of vaname shrimp are pH and TSS.
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    TEKNOLOGI PENGOLAHAN HASIL PERIKANAN UNTUK MENINGKATKAN PEREKONOMIAN MASAYARAKAT PETANI IKAN DI DESA SUNGAI GERINGGING, KECAMATAN KAMPAR KIRI, KABUPATEN KAMPAR, RIAU
    (2019-11) Sukendi, Sukendi; Dewita, Dewita; Thamrin, Thamrin; Putra, Ridwan Manda; Windarti, Windarti; Eddiwan, Eddiwan
    The purpose of this community service activity is to provide knowledge and technology to housewives of farmer groups in Sungai Geringgin village, Kampar Kiri District, Kampar Regency about processing fishery products obtained from the cultivation carried out. The method used is the lecture method, discussion and direct practice about processing fishery products. The results obtained have formed the Sinar Mentari Business group whose members consist of 10 people consisting of housewives of the Independent Workers Cultivation group and specifically engaged in processing fishery products, this group has a high enthusiasm for the material provided, both in the form of theory and discussion as well as in the form of practice and demonstration. The results of the evaluation of knowledge changes showed 8 people (80.00%) have been able to absorb the material given with a predicate very well (value A), 2 people (20.00%) can absorb material given with a good predicate (value B), 1 person (10.00%) can absorb material with enough predicate (C value), while those who get enough predicate (C value) and less predicate (D value) are not found. The results of the skills evaluation show that the members of the Sinar Mentari Business Group have tried to process fishery products into snack food products in the form of fish snacks, fish nuggets and fish balls made at the house of the head of the Sinar Mentari Business Group, namely at the house of the Chairman of the Mandiri Karya Cultivators Group which has established as the center of the Sinar Mentari Business Group. The results of the impact evaluation showed the impact that the Sinar Mentari Group members who are housewives of the members of the Karya Mandiri Cultivators Group have had side activities to process fishery products from fish cultivation so far