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All Journal Biospecies Peronema Forestry Science Journal Aquacoastmarine Ganendra: Majalah IPTEK Nuklir Metalurgi Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan
Yunasfi Yunasfi
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Earth & Planetary Sciences Education Engineering Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Other

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PEMANFAATAN FUNGI Aspergillus flavus, A. tereus DAN Trichoderma harzianum UNTUK MENINGKATKAN PERTUMBUHAN BIBIT Rhizophora apiculata DI DESA PULAU SEMBILAN KABUPATEN LANGKAT Monalia Hutauruk; Yunasfi Yunasfi; Mohammad Basyuni
Peronema Forestry Science Journal Vol 4, No 4 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Mangrove is a forest that it is affected by tides. Indonesia is one of countries that has the largest mangrove forest in the world. Nowdays, the area has been reduced due to the degradation of mangrove forests. This degradation can be addressed with rehabilitation. This study used the fungi of A. flavus, A. tereus and T. harzianum against R. apicuta seedlings which is one of the species used for the rehabilitation of mangrove forests. The research was conducted on August 2014 untill January 2015 using a completely randomized design (CRD) with A. flavus, A. tereus and T. harzianum treatments and with five replications. Results showed that treatment of T. harzianum provided seedlings, the best growth of R. apiculata where the average height of 16.06 cm, diameter of 0.676 cm, a leaf area of 259.68 cm2, and a total of 19 g dry weight compared to the control with average height of 10.06 cm, 0,619 cm of  diameter, leaf area of 146.64 cm2, and the total dry weight of 10.92 g.Key word: fungi, mangrove, Rhizophora apiculata, seedling
IDENTIFIKASI JENIS-JENIS MANGROVE YANG BERMANFAAT SECARA EKONOMI BAGI MASYARAKAT DI PULAU SEMBILAN DAN PULAU KAMPAI, KABUPATEN LANGKAT Eka Sapta Prasetya Silalahi; Budi Utomo; Yunasfi Yunasfi
Peronema Forestry Science Journal Vol 5, No 1 (2016): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

The destruction rate of mangrove in Indonesia progressively increased and the economy level , especially coastal people became higher. Therefore, it’s necessary to identify what type of mangrove that can economically profitable for society. The purpose of this research was to identify type’s of mangrove that beneficial economically to society in Kampai and Sembilan Island, knowing the utilization of mangrove that valuable in economy as well as the role and participation of people in the management and utilization of mangrove. The method that used is descriptive interviews and direct observation. The result showed the people in Kampai and Sembilan Island still have little knowledge about the mangrove, so that the people is difficult to utilize the mangrove maximally. The people of Kampai and Sembilan Island majority using mangrove from the economic side like wood for building , firewood and charcoal wood. The people use it for personal utilities. Type’s of mangrove that used in Sembilan island is Bakau (Rhizophora stylosa) and Api-api (Avicenia officialis) for building wood and firewood, while in Kampai Island type’s of mangrove that using is Bakau (Rhizophora stylosa) and Tengar (Ceriops tagal) for building wood and charcoal wood.Keyword: Economic Mangrove, Kampai Island, Sembilan Island
PENGARUH FUNGI Aspergillus flavus, Aspergillus terreus, DAN Trichoderma harzianum TERHADAP PERTUMBUHAN BIBIT Avicennia officinalis Indah K Sihombing; Yunasfi Yunasfi; Budi Utomo
Peronema Forestry Science Journal Vol 4, No 4 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Mangrove has the ability to absorb organic and inorganic from environment. Fungi in mangrovecan decompotition of litter and neutralize the accumulation of heavy metals. This research can provide information on the types of fungi are able to increase growth of seedlingA. officinalis. This research was conducted from October 2014 until January 2015 using a completely randomized design (CRD) with treatment application three types of fungi and five replications. There are three types of fungi namely appliedA. flavus,  A.tereus and T. harzianum. Application ofT. Harzianumgave the best  result on seedling growth parameter of A. Officinaliswith an average height 26.04 cm, application of A. Flavusgave the best diameter growth, the best leaf area and total dry weight of A. Officinaliswith an average diameter 0.62 cm, leaf area total 66238,6 cm2 and total dry weight 2.82 g, higher than the average of control.Keywords: Avicennia officinalis, fungi,  mangrove, acumulation
Keanekaragaman Jenis Kantung Semar (Nepenthes spp.) di Kawasan Suaka Margasatwa Siranggas Kabupaten Pakpak Bharat Maidita Fitri br Purba; Yunasfi Yunasfi; Pindi Patana
Peronema Forestry Science Journal Vol 4, No 2 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Pitcher plant (Nepenthes spp.) is one of the unique carnivorous plant species, the numbers continue to decline in the wild. Habitat destruction caused by human activities and un cultivated exploitation as an ornamental plant threatened its existence. This study aims to invent and determine species diversity of Pitcher plant (Nepenthes spp.) in the area of Siranggas Wildlife Reserve . The study was conducted at a height categories: 900 – 1.000 meter above see level (m asl) (found 6 types Nepenthes Nepenthes grasilis; Nepenthes mirabilis; Nepenthes tobaica; Nepenthes sp.1 ; Nepenthes sp. 2; and Nepenthes sp. 3),  1.100- 1.200 m asl (none of Nepenthes) and 1.200 – 1.300 m asl (found 3 types of  Nepenthes; Nepenthes reindwardtiana, Nepenthes rhombicaulis and Nepenthes tobaica). Observation ware conducted on three different lines in each height category. Observation path length was 100 m. Determination of the first track was done with purposive sampling method, the next track was determined by systematic sampling. Observation of Nepenthes spp. used of sampling plots 20 m x 20 m. Nepenthes spp. found 8 types of Nepenthes grasilis, Nepenthes mirabilis, Nepenthes reinwardtiana, Nepenthes rhombicaulis, Nepenthes tobaica, and 3 types were unknown (sp.1, sp.2, sp.3).Keywords: Nepenthes spp., Siranggas Wildlife Reserve, Exploitation.
INVENTARISASI ANGGREK TERESTIAL DI HUTAN PENDIDIKAN KAWASAN TAMAN HUTAN RAYA BUKIT BARISAN TONGKOH KABUPATEN KARO SUMATERA UTARA Ulinar Amantha Pasaribu; Pindi Patana; Yunasfi Yunasfi
Peronema Forestry Science Journal Vol 4, No 1 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Indonesia is a country which has the biggest wealth of orchid in the world. Indonesia has about 6.000 types of orchid in the world. In approximately 26.000 types of orchid, about 90% of the dendrobium stem species which are developed in the world are from Indonesia. This study aims to inventory the species of orchid which were found inthe Forest Education TAHURA Bukit Barisan Tongkoh Karo. Determination of the observation locationswhich were conducted by using purposive sampling method. The data which were collected in this study were: the types of orchid, elevation, position point, soil pH, temperature and humidity, and then the identification and analysis of vegetation types.  The results of this study indicated that orchids which were found in the Forest Education TAHURA Bukit Barisan Tongkoh Karo were 13 species of terrestrial orchids which consists of 8 genus. The highest INP value was 35.613 % on the type of Calanthe sp. and the lowest was 4.772 % on the type of Liparis sp. Diversity index H ' was 2.0. The most dominant genus of orchid was the type of the Calanthe genus which was Calanthe sp. which amounts to 69 individuals and the type of the Phaius genus which was Phaius sp. which amounts to 64 individuals.Keywords: terrestrial orchids, inventory, educational forest, Education Forest, TAHURA Bukit Barisan
Keanekaragaman Nepenthes Pada Kawasan Kebun Bonsai dan Sekitarnya di Cagar Alam Dolok Sibual Buali, Sumatera Utara Novha Nurul Fadillah; Pindi Patana; Yunasfi Yunasfi
Peronema Forestry Science Journal Vol 3, No 2 (2014): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Nepenthes is one of the few carnivorous plants which popular as ornamental plant. Sumatran has the richest Nepenthes flora after Borneo, with 29 species. This research was done in Dolok Sibual Buali Nature Reserve at May until June 2013. The purpose of this research is to identify the types of Nepenthes and to know the dominance type of Nepenthes in Dolok Sibual Buali Nature Reserve. Research location determined by using cluster method at three different location, there is 1200 m a.s.l., 1400 m a.s.l., and 1500 m a.s.l. Area size of observation was 0.6 Ha with 15 plots. The result of this research showed that 6 species Nepenthes founded in this area, the species are N. bongso, N. ovata, N. reinwardtiana, N. rhombicaulis, N. sumatrana, and N. tobaica. N. reinwardtiana was the largest species that discover with 152 clumps/0.6 Ha (32.55%) and the lowest species was N. sumatrana with 22 clumps/0.6 Ha (4.71%). The highest index diversity of the Nepenthes spp. was discovered in location III (1500 m a.s.l.) with 1.59.Keywords : Dolok Sibual Buali Nature Reserve, Kebun Bonsai, Biodiversity, Nepenthes
Inventarisasi Anggrek Tanah Pada Kawasan Kebun Bonsai dan Sekitarnya di Desa Padang Bujur, Cagar Alam Dolok Sibual-buali, Provinsi Sumatera Utara Humayra Nasution; Pindi Patana; Yunasfi Yunasfi
Peronema Forestry Science Journal Vol 3, No 2 (2014): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Dolok Sibual-buali Nature Reserve (CADS) is a conservation area in North Sumatra, covers ± 5.000 hectare area, altitude 1.200 – 1.700 m asl. Terrestrial orchids are orchids that grow in the ground in soil and the nutrition is obtained from the soil. Inventory of terrestrial orchids performed to study the diversity and altitudinal distribution of terrestrial orchids species in CADS. Study was performed in April - July 2013. Locations are determined by purposive sampling study with noticed the environmental factors, the vegetation observation used line plot transect which divided into 4 locations with different altitude intervals of every 100 m (1.200 m asl – 1.600 m asl), measuring plot 20 m x 100 m, divided to 5 subplots measuring 20 m x 20 m, so the plot number is 20.  The result found 29 species of terrestrial orchids, divided of 17 genus with the individuals amount as much 816/0,8 hectare. Plocoglottis sp. 1 is the most widely distribution of species, found from 1.200 m asl to 1.500 m asl.Keywords: terrestrial orchids, Dolok Sibual-buali Nature Reserve, inventory, Kebun Bonsai.
KEANEKARAGAMAN JENIS KANTONG SEMAR ( Nepenthes spp. ) DI CAGAR ALAM DOLOK SIBUAL-BUALI Muhaimin Zikri Pratama; Pindi Patana; Yunasfi Yunasfi
Peronema Forestry Science Journal Vol 5, No 3 (2016): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Nepenthes is a carnivorous plant that has a unique bag, each end of the leaf. This unique bag can trap insects or other small animals, as in the pocket there is nectar glands (glands honey) that can trap insects especially with the sweet taste. This research was conducted in the Nature Reserve Dolok Sibual Buali from August until October 2014. This study aims to determine the diversity of plant species in the area of ​​Nepenthes Nature Reserve Dolok Sibual-Buali, North Sumatra and Knowing dominance Nepenthes plants are found in the Nature Reserve Dolok Sibual -Buali, North Sumatra. This survey using the cluster method to determine the area of ​​the sample is based on consideration of the existence of Nepenthes (searching the sample). From the research results can be seen, there are 5 types of Nepenthes in Cagar Alam Dolok Sibual Buali, namely N. Bongso  N. ovata, N. reinwardtiana, rhombicaulis N., and N. tobaica. Total clumps most is N. reinwardtiana with 169 clumps and clumps least number is N. ovata with 54 clumps. Keywords: Cagar Alam Dolok Sibual Buali, species diversity, Nepenthes.
LAJU DEKOMPOSISI SERASAH DAUN Rhizhopora apiculata PADA BERBAGAI TINGKAT SALINITAS DI KAMPUNG NYPA DESA SEI NAGALAWAN KECAMATAN PERBAUNGAN Dilla Ersyahdes Riski; Yunasfi Yunasfi; Hesti Wahyuningsih
Peronema Forestry Science Journal Vol 5, No 3 (2016): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Mangrove litter has been decomposed contributes organic matter as food source for many organism and also to give fertility in the mangrove ecosystem. The purpose of this research were to measure the decompotion rate and to know the nutrient of carbon (C), nitrogen (N) and phosphorus (P) contained in the leaf litter of R. apiculata at the various levels of salinity. This research was done at Kampung Nypa Desa Sei Nagalawan Perbaungan, North Sumatera Province from August 2015 until January 2016 with used 50 grams of leaf litter. This research for decomposition rate of R. apiculata used Olson method. Nutrient analysis of carbon was conducted using Walkey & Black method, analysis of nitrogen and phosphorus nutrients was conducted using the extraction of wet destruction. The results showed the fastest weight loss and the rate of decomposition of  R. apiculata leaf litter was at 0-10 ppt. The highest of levels of carbon nutrients was in 10-20 ppt, the highest of levels nitrogen and phosphorus nutrients was at 0-10 ppt Keywords: Decomposition rate, nutrient, leaf litter, R. apiculata, salinity.
DISTRIBUSI DAN POLA PERTUMBUHAN UDANG PUTIH Penaeus Merguiensis de Man DI PERAIRAN ESTUARI SUAKA MARGASATWA KARANG GADING SUMATERA UTARA Audya Rahman; Miswar Budi Mulya; Yunasfi Yunasfi
AQUACOASTMARINE Vol 4, No 3 (2016): JURNAL AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

White shrimp Penaeus merguiensis de Man belonging to family of Penaeidae and the tribe of Decapoda. White shrimp are found in estuary waters of Karang Gading Wildlife North Sumatra. At the present, data about the presence of white shrimp in the waters of the estuary Wildlife Karang Gading North Sumatra have not been obtained, both of which include the abundance and growth patterns, so it is necessary to study. This study aims to determine the distribution and growth patterns of white shrimp in the waters of the estuary Wildlife Karang Gading North Sumatra. Sampling the white prawns done in May-June 2015 on estuary waters Karang Gading Wildlife North Sumatra use purse seine mini made of nylon material polifilamen, with a length of 10 m and a diameter of 3 m mouth opening. Sampling white shrimp is done every 21 days beginning at 08.00 am - 18.00 pm. At each sampling a one-time withdrawal mini purse seine along the 10 m at each station, so that the possibility of damage to the ecosystem of the study sites can be minimized. White shrimp were obtained at each station calculated the number of individuals, measured carapace length and body weight of shrimp, then performed the analysis includes the abundance, distribution, pattern of growth and condition factor. Measurement of physical-chemical parameters of water which include water temperature, water depth, water clarity, flow velocity, water pH, dissolved oxygen and salinity of water in the field at each station with three repetitions before sampling white shrimp. Especially for BOD5 and substrate fraction measurements performed in Agronomi laboratorium of Agriculture Faculty, North Sumatra University. The study concluded that the distribution of white shrimp in the waters of the estuary Wildlife Karang Gading belongs to the group distribution pattern. The growth pattern of white shrimp at stations 1 and 2 estuary waters of Karang Gading Wildlife Reserve is a positive allometric, while at station 3 is negative allometric. The condition factor of white shrimp in each station morphology have good plumpnessKey words:Distribution, estuary, growth pattern, white shrimp.
Co-Authors Ade Khana Saputri Ahmad Muhtadi Ahmad Mutadi Audya Rahman Bill Maulana Bidawi BUDI UTOMO Darmanto Ambarita Desrita Desrita Devita Mala Sari Dilla Ersyahdes Riski Eka Sapta Prasetya Silalahi Evan Kharogi Sinulingga Henny E. N. Gultom Hesti Wahyuningsih Humayra Nasution Indah K Sihombing Lestari Marbun M. Luthfi Dharmawan Maidita Fitri br Purba Mashadi Mashadi Miswar Budi Mulya Mohammad Basyuni Monalia Hutauruk Muhaimin Zikri Pratama Novha Nurul Fadillah Pindi Patana Rachel Nababan Sabilah Fi Ramadhani Saeful Yusuf Setyo Purwanto Tria Madesa Try Miharza Ulinar Amantha Pasaribu Yolanda Rizwany