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All Journal Jurnal Perikanan dan Kelautan Peronema Forestry Science Journal BIOTIK: Jurnal Ilmiah Biologi Teknologi dan Kependidikan Journal of Science and Applicative Technology IJOEP : International Journal of Ecophysiology
Erni Jumilawaty
Staf Pengajar Departemen Biologi, Fakultas Matematika Dan Ilmu Pengetahuan Alam, Universitas Sumatera Utara
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Education Engineering Environmental Science Immunology & microbiology Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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DISTRIBUSI DAN POLA PERTUMBUHAN IKAN BULAN-BULAN (Megalops cyprinoides Broussonet, 1782) DI SUNGAI BELAWAN Khairul, Khairul; Wahyuningsih, Hesti; Jumilawati, Erni
Jurnal Perikanan dan Kelautan Vol 19, No 2 (2014)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.19.2.56-61

Abstract

The purpose of the study to determine the distribution and growth patterns ofindo pacific tarpon fish (Megalops cyprinoides Broussonet, 1782) in Belawan River.This study was conducted in January-March 2014. Sampling was collected by purpo-sive sampling method. Sampling colected at 3 stations fishnet use with 30 times thestocking for each month. Distribution is calculated using the formula Khouw (2009)and the growth patterns using formulas King (1995). The results showed the analysisof Indo Pacific tarpon fish distribution uniform categorized months as earned valueid <1. Growth pattern of indo pacific tarpon fish is negative allometric means thelength faster than weight gain.
KEPADATAN DAN POLA PERTUMBUHAN KERANG LOKAN (Geloina erosa, Solander 1786) DI EKOSISTEM MANGROVE BELAWAN Hasan, Uswatul; Wahyuningsih, Hesti; Jumilawaty, Erni
Jurnal Perikanan dan Kelautan Vol 19, No 2 (2014)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.19.2.42-49

Abstract

Density and growth pattern mangrove clam Geloina erosa (Solander 1786) inmangrove ecosystem Belawan, has been investigated in December 2013 - February2014. G erosa samples taken from three observation stations and each station observa-tions were made 3 replicates (months) sampling. The method used in determining thesampling point is the "purposive sampling". G. erosa samples were collected directlyby capturing by hand at the lowest tide. Result of the analysis data was the highestdensity of G. erosa at station 1 Nypah fruticants vegetation average of 3.207 individ-uals/m 2 , the lowest Heterogeneous vegetation at station 2 average of 1.362 individuals/m 2 . Allometric growth patterns show a pattern of negative (b <3).
KEPADATAN DAN POLA DISTRIBUSI KIJING (Glauconome virens, LINNAEUS 1767) DI EKOSISTEM MANGROVE BELAWAN Machrizal, Rusdi; Wahyuningsih, Hesti; Jumilawaty, Erni
Jurnal Perikanan dan Kelautan Vol 19, No 2 (2014)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.19.2.50-55

Abstract

The aims of this study were to determine density and distribution pattern of ki-jing (G. virens) in Belawan Mangrove Ecosystem. Sample were collected with a smallsquares 1x1 m 2 as much as 45 with interval 1 m. The results of this study showed thehighest value of the density was found in station III 2.93 Ind /m 2 , while at the station I2.80 Ind / m 2 . The lowest one was found in station II 1.16 Ind / m 2 . Distribution patternof Kijing on station I and II was uniform with id value 0.645 and 0.958, on the contra-vy on station III was clumped with id value 1.421.
Identifikasi Keanekaragaman Jenis Burung di Kawasan Restorasi Resort Sei Betung, Taman Nasional Gunung Leuser / (Identification Diversity of Bird Species in Restoration Area at Sei Betung Resort, Gunung Leuser National Park) Duma Fransisca Sihotang; Pindi Patana; Erni Jumilawaty
Peronema Forestry Science Journal Vol 2, No 2 (2013): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (626.254 KB)

Abstract

Forest damage in any ways will determine all of the organism inside include the birds. Forest restoration is a positive step that would help to recover back the forest. Bird is one of bio-indicator of forest condition. This research was needed not only to compare the diversity of  birds between restoration area and primary forest (middle and edge forest), but also to know the species of birds which could adapt in both areas. The research was conducted in June – July 2012 at Sei Betung Resort, based on the IPA (Indices Ponctuels d’Abondence) or Point Count method. The result showed that bird diversity index in middle forest is 3,586 as well as in edge forest is 3,554. Both results are categorized as high diversity level, while the restoration area is categorized as middle diversity level with 3,095 index value. Some birds were founded in both areas such as Wreathed hornbill (Aceros undulatus), Emerald dove (Chalcophaps indica), Black magpie (Platysmurus leucopterus), Short-toed coucal (Centropus rectunguis ), Greater coucal (Centropus sinensis), Lesser coucal (Centropus bengalensis), Buff-rumped Woodpecker (Meiglyptes tristis), Rufous woodpecker (Celeus brachyurus), Red-breasted parakeet (Psittacula alexandri), Yellow-vented bulbul (Phycnonotus goiavier), Cream-vented bulbul (Pycnonotus simplex), Black-headed Bulbul (Pycnonotus atriceps), Red-whiskered bulbul (Pycnonotus jocosus), Ashy tailorbird (Orthotomus ruficeps), Rufous-tailed tailorbird (Orthotomus sericeus), Magpie robin (Copsychus saularis). Key words: bird diversity, bird adaptation, primary forest, restoration area
PENDUGAAN PRODUKTIVITAS POHON PAKAN ORANGUTAN SUMATERA (Pongo abelii) PADA KAWASAN PPOS (PUSAT PENGAMATAN ORANGUTAN SUMATERA), BUKIT LAWANG Bungaran Bungaran; Pindi Patana; Erni Jumilaty
Peronema Forestry Science Journal Vol 4, No 3 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (885.977 KB)

Abstract

The population of Sumatran Orangutan (Pongo abelii) decreases due to forest conversion. In addition, the availability of feed orangutans also declining so much potential extinction of the Sumatran orangutan if this trend continues. This study aims to determine the productivity of the tree of the Sumatran orangutan (Pongo abelii) and ecological niche in the area of Sumatran Orangutan Observation Center (PPOS), Bukit Lawang. This study was conducted for 3 months observations performed every week. The result showed that the productivity of the tree of sumatran orangutan lowest for the urinary tree (Quercuss sumatrana) while the highest species productivity found in the forest of mango trees (Mangifera indica). Animal species found in the hills of mace, among others, sumatran orangutan, long-tailed monkeys, kedih, turtles, squirrels and hornbills.
ESTIMASI KEPADATAN ORANGUTAN SUMATERA (Pongo abelii Lesson, 1827) BERDASARKAN JUMLAH SARANG DI PERBATASAN CAGAR ALAM DOLOK SIBUAL BUALI Ferry Aulia Hawari; Pindi Patana; Erni Jumilaty
Peronema Forestry Science Journal Vol 4, No 4 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1361.697 KB)

Abstract

habitat is fragmented into several regions led to the survival of a population of a species depends on habitat conditions. The purpose of this study was to determine the population density of orangutans based on the number of nests in the Bulumario Village, Nature Reserve area Dolok Sibual Buali, District Sipirok, South Tapanuli, North Sumatra Province also determine the types of dominant vegetation is used as a nesting tree of the Sumatran orangutan in the village Bulumario, Knowing the value and Importance Value Index (IVI) of trees located in the village of Bulumario. This study was conducted in May 2014 until June 2014 in Nature Reserve Dolok Sibual Buali, Bulumario Village, District Sipirok, South Tapanuli, North Sumatra Province  The results of this study indicate orangutan population density based on the number of nests in the Bulumario village and district CADS is 0,023 individuals/km2 or 2,332 individuals/ha of the total number of nests found 49 nests. Most nests were found at a distance of 0-100 meters of the entire track the number of 14 nests (28,57%) and the class that dominates nest class D is the number of 23 nests (46,94%). Dominant position of the nest is in a position which is a position I nest close to the main stem of the tree with the nest number 24 (48,98%). Generally the nest is found at an altitude of 6-10 meters with a sum of 15 nests (30,61%). Important Value Index (IVI) is highest on the type Hoteng (Quercus gamelliflora Blume.) Of the family Fagaceae with IVI 33,83%, and the Moraceae family that is dominated by the number seven species.Keywords: Sumatran Orangutan, Orangutan Density, nest, Important Value Index
ESTIMASI KEPADATAN ORANGUTAN SUMATERA (Pongo abelii) BERDASARKAN JUMLAH SARANG DI DESA SEKITAR CAGAR ALAM DOLOK SIBUAL-BUALI Gabriella Junike Maria Azalia Simanjuntak; Pindi Patana; Erni Jumilaty
Peronema Forestry Science Journal Vol 4, No 4 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1027.123 KB)

Abstract

Sumatran Orangutan (Pongo abelii) is protected mammal species which existence is now in critically endangered species category of the International Union for Conservation of Nature (IUCN). It’s facing a very high risk of extinction in the wild. This research aimed to estimate Sumatran orangutan density, determined the types of dominant vegetation used as nesting tree, assest the value and Importance Value Index (IVI) of trees located in the village of Aek Nabara. This indirect method was used by counting the number of nests due to the difficulties in finding Sumatran Orangutans in wild habitat. The area of village is  in the border of Dolok Sibual-buali Natural Reserve, South Tapanuli.   The results of this study indicated orangutan population density was 0,006 individuals/km2 or 5,994 individuals/10 ha with the total number of 18 nests. Generally the nest was found at 6-10 meters of tree hight with a sum of 8 nests (44,44%). The highest of Important Value Index (IVI) was Hoteng species (Quercus gamelliflora Blume.). The trees which mostly used by orangutans as a nest was Hau Dolok tree (35,29%).Keywords: Sumatran Orangutan, Orangutan Density, orang utan nest, Important Value Index, Dolok Sibualbuali Natural Reserve
KELIMPAHAN JENIS DAN ESTIMASI PRODUKTIVITAS Ficus spp. SEBAGAI SUMBER PAKAN ALAMI ORANGUTAN SUMATERA (Pongo abelii) DI PUSAT PENGAMATAN ORANGUTAN SUMATERA (PPOS), TAMAN NASIONAL GUNUNG LEUSER Santy DN Purba; Pindi Patana; Erni Jumilaty
Peronema Forestry Science Journal Vol 4, No 1 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (812.373 KB)

Abstract

Ficus spp. a feed source tree that is a keystone species for primates and birds. Availability Ficus spp feed. This needs to be evaluated. Therefore, the availability of this feed is quantified through Ficus spp abundance. and estimates of productivity growth in young leaves, fruits, and flowers Ficus spp. The methodology used in this research is the analysis of vegetation and Zweifel method. The results were obtained Ficus spp abundance. highest in saplings found in trail 1 (4.325). Ficus spp abundance. relatively rare. Estimated productivity of young leaves in the January to April period of observation ranges from 30% -40%. Estimated productivity of flowers in the period January to April tends to moderate. Estimated productivity of fruit in the January to April period of observation ranged from 1-100 pieces per month. Period fertilization occurs after the flowering period, so the number of pieces that appear influenced by the growing amount of interest. If the amount of interest a little, then the amount of fruit too little. Observation period of January to April, including not tend to dry the fruit season. Other species in ecological niches are black squirrels and hornbills. Keywords: Ficus spp., Zweifel, estimated productivity, species abundance, ecological niches.Keyword: species abundance, productivity estimation, Ficus spp, Sumatran Orangutan, Natural Feed, Gunung Leuser National Park
Identifikasi Jenis Burung dan Kondisi Cuaca pada Tenggeran Buatan di Kawasan Restorasi Resort Sei Betung Taman Nasional Gunung Leuser (Identification of bird and weather on Artificial perch at Restoration Region Resort Sei Betung Gunung Leuser National Akta Novita Damanik; Pindi Patana; Erni Jumilaty
Peronema Forestry Science Journal Vol 5, No 1 (2016): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (546.012 KB)

Abstract

Restoration in the resort area of Sei Betung covers 9.734 hectares. Various attempts were conducted to rehabilitate to the area, such as replanting or utilizing spreading seed agent of bird. The presence of a certain bird species, generally followthe preference on it’s habitat. This research observed  what kind of bird perched on artificial perch and  weather conditions in the area. The methodology used Ponctuels d'Abondance / Index Point of Abundant (IPA-Count), thas did not require extensive sampling place or a certain squares wide. This method consisted a series of points that spreaded randomly or in straight line. The results obtained the highest diversity of trees is 1,20, the highest bird abundance merbah cerucuk 31,67. Birds conducted their activities in  temperature range between 26,50C - 310C and humidity around 70% and precipitation of 74,857mm. Keywords: Restoration, species of bird, temperature, humidity, rainfall
Komposisi Komunitas Cacing Tanah Pada Lahan Pertanian Organik Dan Anorganik Di Desa Raya Kecamatan Berastagi Kabupaten Karo Sri Jayanthi; Retno Widhiastuti; Erni Jumilawaty
Biotik Vol 2, No 1 (2014): Jurnal Biotik
Publisher : Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/biotik.v2i1.228

Abstract

Penelitian dilakukan di Desa Raya, Kecamatan Berastagi, Kabupaten Karo, Sumatera Utara dan di Laboratorium Sistematika Hewan Depatermen Biologi, Universitas Sumatera Utara, Medan pada bulan januari - februari 2013. Penelitian dilakukan secara purposive random sampling dengan menggunakan metode kuadrat dan hand sorting. Hasil penelitian ditemukan 1 spesies famili Glocossicidae (P. corethrurus) dan 3 spesies famili Megascolidae (Amynthas sp., Megascolex sp. dan Pheretima sp.). Kepadatan cacing tanah pada pertanian organik (128,000 ind/m2) dan anorganik (73,600 ind/m2). Ada perbedaan komposisi komunitas cacing tanah pada lahan pertanian organik (Pheretima sp. 50,833%, P. corethrurus 40,000%, Amynthas sp. 7,500%, Megascolex sp. 1,667%) dan anorganik (P. corethrurus 49,275%, Pheretima sp. 46,377%, Amynthas sp. 4,384%). P. corethrurus dan Pheretima sp. merupakan jenis cacing tanah yang karakteristik pada lahan pertanian organik dan anorganik. Kata Kunci: Anorganik, Cacing Tanah, Kabupaten Karo, Komunitas dan Organik ABSTRACT This study had been done in Raya subdistrict, Berastagi district, Karo, Sumatera Utara in Animal Systematics Laboratory of Biology Department University of Sumatera Utara on January to February 2013. The sample for this study taken by purposive random sampling using the least squares and hand sorting method. The results of the research found that there were one family of Glocossicidae (namely species P. corethrurus) and 3 species of family Megascolidae (namely: Amynthas sp., Megascolex sp., and Pheretima sp.). The density of eartworm in organic farming was 128,000 ind/m2 and in inorganic one was 73,600 ind/m2. There were differences in community composition of earthworms on organic farms, they were Pheretima sp. 50,833%, P. corethrurus 40,000%, Amynthas sp. 7,500%, Megascolex sp. 1,667%, meanwhile, in inorganic farms were P. corethrurus 49,275%, Pheretima sp. 46,377%, Amynthas sp. 4,348%. P. corethrurus and Pheretima sp. were the characteristic of earthworms species in organic and inorganic agricultural land. Keywords: Community, Earthworms, Inorganic and Organic
Co-Authors Akta Novita Damanik Bungaran Bungaran Duma Fransisca Sihotang Ferry Aulia Hawari Gabriella Junike Maria Azalia Simanjuntak Hasan, Uswatul Hesti Wahyuningsih Khairul Khairul, Khairul Nurul Husna Siregar Pindi Patana Retno Widhiastuti Rusdi Machrizal Santy DN Purba Sri Jayanthi