Article Per Year (5 Year)
p-Index From 2021 - 2026
2.198
P-Index
This Author published in this journals
All Journal Jurnal Natur Indonesia Jurnal Perikanan dan Kelautan Jurnal Ilmu Lingkungan JBIO: jurnal biosains (the journal of biosciences) Tunas Geografi Peronema Forestry Science Journal Aquacoastmarine SCHOOL EDUCATION JOURNAL PGSD FIP UNIMED Journal of Applied Geospatial Information Jurnal Penelitian Pendidikan IPA (JPPIPA) Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Jurnal Serambi Engineering Jurnal Iktiologi Indonesia (Indonesian Journal of Ichthyology) Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Berkala Ilmiah Biologi Journal of Environmental and Development Studies Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan
Hesti Wahyuningsih
Department Biology, Faculty Of Mathematics And Natural Sciences, Universitas Sumatera Utara. Medan, Indonesia
Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology Physics Social Sciences Veterinary Other

Published : 45 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 45 Documents
Search

 1   2   3   4   5 
KAJIAN POTENSI OBJEK WISATA ALAM TIRTA DESA BUKIT LAWANG KECAMATAN BAHOROK KABUPATEN LANGKAT SUMATERA UTARA (Potential Study of Nature Tourism Object Tirta Bukit Lawang Village Bahorok District Langkat Regency North Sumatera) Desti Natalia Simbolon; Hesti Wahyuningsih; Yoes Soemaryono
AQUACOASTMARINE Vol 5, No 2 (2017): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (371.882 KB)

Abstract

Nature Tourism Object Tirta Bukit Lawang Village is a tourist place that utilizes the beauty and potential of the Bahorok River located in Langkat regency of North Sumatera. This research aims to determine the potential of Bahorok River tourism and how the visitor's perception of the tourist area. This research was conducted at Bahorok River in January - February 2017. The Bahorok River located in Tirta Bukit Lawang tourism is utilized by visitors to perform relaxed activities, natural baths and traditional rafting, of these activities will certainly be supported by the potential on the tour. The carrying capacity of Tirta Bukit Lawang tourism area is 470 people / day. The Tourist Suitability Index for the relaxed category includes the corresponding S2 group, the bathing category belonging to the S1 group is very suitable and the traditional rafting category is included into the S2 group. The quality of Bahorok River is relatively clear so it is potential to support tourism activities.Keywords : Bahorok River, The carrying capacity area, Tourist Sustaibility Index, Relax Sit, Natural Baths and Tradistional Rafting.
STRUKTUR KOMUNITAS MAKROZOOBENTOS DI ZONA INTERTIDAL DESA PINTU AIR KABUPATEN LANGKAT PROVINSI SUMATERA UTARA Arif Nuhalin Nasution; Hesti Wahyuningsih; Indra Lesmana
AQUACOASTMARINE Vol 5, No 3 (2017): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (150.23 KB)

Abstract

Pintu Air Village is an area that has an intertidal zone which is a tidal and tall area that has a very large diversity of macrozoobenthos. This research aims to Analysis of macrozoobenthic community structures and their chemical physics relationships in the intertidal zone. The research was conducted at the Intertidal Zone of Pintu Air Village in May-June 2017. Determination of sampling location using purposive sampling method at 3 stations. Taking Macrozoobenthos on 9 plots in the intertidal zone. Results of the research obtained 19 species of macrozoobenthos. Density ranged from 7,6-11,7 ind/m2, Diversity ranged from 2,18-2,19 including the moderate category, Uniformity ranged from 0,54-0,58, Dominance ranged from 0,11-0,12 dan Distribution pattern ranged from 0,71-0,87. Pearson correlation results between the diversity of macrozoobenthos to temperature, depth and salinity are moderate, pH and brightness are low, DO is very low.Keyword : Pintu Air Village, Intertidal Zone, Macrozoobenthos, CommunityStructure, Water Quality.
HUBUNGAN LEBAR KARAPAS DAN BERAT KEPITING BAKAU (Scylla spp.) DI PERAIRAN KAWASAN MANGROVE DESA JARING HALUS KABUPATEN LANGKAT SUMATERA UTARA Raswin Nasution; Hesti Wahyuningsih; Ahmad Muhtadi
AQUACOASTMARINE Vol 6, No 1 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (333.543 KB)

Abstract

The Mangrove Crabs population is typically associated with good Mangrove forest, so habitat loss will have a serious impact on the Crabpopulation. One of the areas of Mangrove Crab catching in nature is theMangrove Area Waters of Jaring Halus Village. The purpose of this research was to know the relationship between the width of the carapace and the weight of theMangrove Crab (Scylla spp.) in Mangrove Waters of Jaring Halus Village,Langkat Regency, North Sumatera. This research was conducted in December 2016 - January 2017 with 3 catching stations using Bubu fishing equipment of 45 units. The catch was analyzed by simple linear regression W = a Lb. The number of Mangrove Crabs caught 178 heads consisting of 93 males and 85 females with sex ratio between male and female is 1 : 0,91. The carapace's width of caughtCaps ranged from 41 to 96 mm where the male carapace's width ranged from 41 - 90 mm, while the females ranged from 41 - 96 mm. Heavy Crab Mangrove  that caught ranged from 30-540 mm where the males ranged from 30 - 370 grams while the female 30-540 grams. Growth of male and female mangrove crabs is positive allometric (b > 3) which means more dominant weight accretion compared to long accretion.Keywords: Jaring Halus Village, Mangrove, Scylla spp.
KARAKTERISTIK BIO-FISIK HABITAT PANTAI PENELURAN TERHADAP TINGKAT KEBERHASILAN PENETASAN TELUR PENYU HIJAU (Chelonia mydas) DI PULAU PENYU PESISIR SELATAN PROVINSI SUMATERA BARAT Puji Cintami Tambun; Hesti Wahyuningsih; Yoes Soemaryono
AQUACOASTMARINE Vol 6, No 1 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (483.809 KB)

Abstract

Green Turtle (Chelonia mydas) is an endangered marine reptile because of its high economic value. The main threats to the Green Turtle population from human activities, such as coastal and marine pollution, destruction of spawning habitats, destruction of feeding areas, migration disruption, illegal sea turtle fishing and turtle egg collection. This research took place in May - July 2017 at Turtle Island Pesisir Selatan West Sumatera Province. The measurements obtained were 1.53 km of coastline, coastal width ranging from 15.5 - 24.5 m, coastal slope ranging from 23.8 – 29.2˚, semi diurnal tidal type, nest distances from the highest tides ranging from 8 to 9.5 m, the lowest nest distance from 13.5 - 14.5 m, the nest distance of the plant ranges from 2 to 10 m, the nest substrate consists of sand, clay, and dust which is dominated by sand, measured nest size during the study ranges from L 62 - 65 cm, P 100 - 105 cm, D 36 - 38 cm, d 38 - 39 cm, t 23-25 cm, measured temperature range 27 ° C - 30 ° C, temperature measured 27 ˚C - 29˚C, pH value nest 7, measured rainfall 400 mm/month, nest number found 8 nests, consisting of 4 Green Turtle nest (Chelonia mydas) and 4 Hawksbill turtle nests (Eretmochelys imbricata). The highest hatching percentage was 95.23% and the lowest was 24.21%.Keywords: Green Turtle (Chelonia mydas), characteristic, bio-physical, hatching percentage, Turtle Island
DISTRIBUSI PENELURAN PENYU DI KECAMATAN SORKAM BARAT KABUPATEN TAPANULI TENGAH PROVINSI SUMATERA UTARA Sea Turtle Distribution in West Sorkam District, Central Tapanuli Regency, North Sumatera Province Winni J. S Simbolon; Hesti Wahyuningsih; Ani Suryanti
AQUACOASTMARINE Vol 6, No 1 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (236.016 KB)

Abstract

Sea turtle is a group of reptiles that have a wide range of roaming, which inhabit tropical and subtropical seas around the world. Sea turtle is animal listed in CITES (Convention on International Trade in Endangered Species of Wild Fauna and Flora). One of the turtle nesting places in North Sumatra is the coastal area of West Sorkam, Central Tapanuli Regency, North Sumatra Province. Sea turtle distribution has done to know the location and general characteristics of turtle nesting location in West Sorkam District, Central Tapanuli Regency, North Sumatera Province is done by purposive sampling. The research has been conducted from the end of April until the beginning of September in West Sorkam District. The method used in this research is survey method, that is by observation or direct observation. The data collected in the form of primary data and secondary data. The results showed that turtle nesting spots in West Sorkam District cover the four villages of Pasar Sorkam village, Madani village, Tolok Roban village, Binasi village and last seen time in 2017. Type of sea turtle found is Olive Ridley (Lepidochelys olivacea) on May and July 2017 meanwhile in June it is unknown because the eggs are sold by fisherman.Keywords: seaturtle, nesting, West Sorkam, distribution.
HUBUNGAN SEDIMENTASI TERHADAP STRUKTUR KOMUNITAS MAKROZOOBENTOS DI MUARA SUNGAI DESA PINTU AIR KABUPATEN LANGKAT PROVINSI SUMATERA UTARA Ira Mutiara Lumbangaol; Hesti Wahyuningsih; Rusdi Leidonald
AQUACOASTMARINE Vol 6, No 1 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (633.421 KB)

Abstract

Community activity gives influence to ecosystem condition in river estuary area in Desa Pintu Air and potentially affect water quality, characteristic and sedimentation rate, and abundance of marine biota especially macrozoobenthos. The study was conducted from May to July 2017 at Pintu Air Village, Langkat Regency, North Sumatra Province. The study was conducted by purposive sampling. The result showed that sedimentation rate in Desa Pintu Air estuary Station I was 3491,98 gr/ m2/day, Station II was 389,10 gr/m2/day, Station III was 369,15 gr/m2/day, Station IV equal to 1576,14 gr/m2/day, and Station V was 5353,51 gr/m2/day. Abundance of macrozoobenthos in Station I was 18 ind/m2 Station II of 17 ind/m2, Station III was 13 ind/m2, Station IV was 22 ind/m2 and Station V was 7 ind/m2 . The value of Diversity Index (H ') Station I was 4,08 Station II was 4,65 Station III was 4,83 Station IV was 5,12 and Station V was 4,07. Dominance index (C) Station I was 1,01 Station II was 0,32 Station III was 0,47 Station IV was 0,49 and Station V was 0,77. The value of sedimentation correlation to macrozoobentos abundance was -0,509, sedimentation correlation value to macrozoobentos diversity was -0.822, and the value of sedimentation correlation to macrozoobentos dominance was 0.850.Keywords : Sedimentation, Macrozoobenthos, Estuary
KEANEKARAGAMAN PLANKTON DANAU SIOMBAK KECAMATAN MEDAN MARELAN KOTA MEDAN The Diversity of Plankton at Siombak Lake, Medan Marelan District of Medan City Supardi Harahap; Hesti Wahyuningsih; Zulham Apandy Harahap
AQUACOASTMARINE Vol 6, No 1 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (338.799 KB)

Abstract

Siombak Lake is an artificial lake located in Kelurahan Rengas Pulau, Medan Marelan, is 18 km north of the center of Medan. Plankton is one of the main components in the food chain and food web. The purpose of this research is to know the diversity of plankton community, the value of water chemistry physics parameters, and the correlation between water chemical physics factor with plankton at Lake Siombak Medan Marelan Sub-district Medan City. The research was conducted at Siombak Lake in September 2015. Plankton and plankton water quality data including temperature, pH, brightness, dissolved oxygen (DO), BOD5, NH3, and phosphor grades were obtained from the field and analyzed in the laboratory. The method used in determining the sampling location for plankton sampling is "Purposive Sampling" at 5 (five) observation stations. The value of plankton diversity index obtained at Lake Siombak is Station 1: 3.05145, Station 2: 3.14593, Station 3: 3.10679, Station 4: 3.07244 and Station 5: 3.1212. Temperature, pH, BOD, Salinity, DO, Brightness are in the range of quality standards, while nitrate and phosphate exceed the quality standard.Keyword : Plankton, Physics - Chemistry of Water, Lake Siombak
ANALISIS FAKTOR-FAKTOR YANG MEMPENGARUHI TERWUJUDNYA SEKOLAH ADIWIYATA MANDIRI DI SMA NEGERI 1 SUNGGAL KECAMATAN SUNGGAL Fatmadhona Artamadya; Alvi Syahrin; Hesti Wahyuningsih
SCHOOL EDUCATION JOURNAL PGSD FIP UNIMED Vol 9, No 2 (2019): SCHOOL EDUCATION JOURNAL PGSD FIP UNIMED
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (133.022 KB) | DOI: 10.24114/sejpgsd.v9i2.13715

Abstract

The purpouse to analyze (1) The influence of policy factors (2) The influence of curriculum factor (3) The influence of factors of participation (4) The influence of facilities management factor .Determination of the number of samples using Slovin technique so as to obtain the number of samples of 92. The results showed   it can be concluded that simultaneous effect of environmentally sound policy variable, the implementation of environment-based curriculum and management of supporting facilities towards the realization of Adiwiyata Mandiri School at SMA Negeri 1 Sunggal Sunggal Subdistrict. (4) SMA Negeri 1 Sunggal does not have Adiwiyata Mandiri standard because the implementation of curriculum and policy has not been consistent and continuous. Keywords: Adiwiyata School, Adiwiyata School Factors
Perubahan plasma darah dan kematangan gonad pada ikan betina Tor soro di kolam pemeliharaan [Changes of blood plasma and gonadal maturity on female Tor soro in pond] Hesti Wahyuningsih; Muhammad Zairin Jr; Agus Oman Sudrajat; Ligaya ITA Tumbelaka; Wasmen Manalu
Jurnal Iktiologi Indonesia Vol 12 No 1 (2012): Juni 2012
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v12i1.127

Abstract

Tor soro is an endemic species of freshwater fish in North Sumatera. Year by year the population of Tor soro tend to decrease. Currently,Torsorohashadtechnologyofdomestication. In order to support the success of breeding of Tor soro, information on the gonad development is urgently needed. Oocyte diameter and biochemistry of blood plasma of eight young females was carried out every month during a year (April 2009-March 2010). The estradiol-17p concentration was high received in July (0.9±0.8 ng ml'1), then decreased drastically in August (0.20±0.16 ng ml'1) and again increased until achieving the highest concentration in March.The highest of the estradiol-17p concentration correspond the peak of vitellogenesis towards the maturation. Biochemistry of blood plasma low in June as follow protein total 3.9±0.359 g dl-1; cholesterol 0.13±0.014 g dl-1; triglyceride 0.1±0.021 g dl-1 occurred at the time of the maximum size oocyte development. Concentration of low glucose existed in September (0.04±0.019 g dl-1) when the fish ovulated, this condition increased gradually up to optimal in February (0.12±0.003 g dl-1).Meanwhile optimal ovarian maturity occurred in June and September. AbstrakTor soro merupakan ikan endemik di Sumatera Utara dengan populasinya yang kian menurun. Saat ini, Tor soro telah mengalami teknologi domestikasi dan mampu dilakukan perbanyakan ikan pada kolam budidaya sejak tahun 2000. Informasi tentang reproduksi ikan ini masih sangat sedikit sehingga perlu adanya kajian tentang perkembangan gonad sebagai data awal pengembangan budi daya. Dalam studi ini digunakan delapan ekor betina muda. Pengukuran diameter oosit dan parameter biokimia plasma darah dilakukan sebulan sekali selama setahun (April 2009-Maret 2010). Konsen-trasi estradiol-17p yang tinggi diperoleh pada bulan Juli 2009 (0,9±0,8 ng ml-1), kemudian menurun drastis pada bulan Agustus 2009 (0,20±0,16 ng ml-1) dan kembali meningkat hingga mencapai konsentrasi tertinggi pada bulan Maret 2010. Tingginya konsentrasi estradiol-17p ini menunjukkan puncak vitelogenesis menuju maturasi. Hasil pengukuran biokimia plasma (total protein, kolesterol dan trigliserida, kecuali glukosa) yang rendah diperoleh pada bulan Juni 2009 (total protein 3,9±0,359 g dl-1; kolesterol 0,13±0,014 g dl-1; trigliserida 0,1±0,021 g dl-1) yang terjadi pada saat ukuran oosit mencapai maksimum. Konsentrasi glukosa terendah pada bulan September 2009 (0,04±0,019 g dl-1) saat ikan mengalami ovulasi, dan selanjutnya meningkat secara bertahap hingga mencapai optimal pada bulan Februari 2010 (0,12±0,003 g dl-1). Perkembangan kematangan gonad mencapai optimum pada bulan Juni dan September 2009.
Estimasi Potensi Produksi Ikan Di Danau Laut Tawar Berdasarkan Morphoedaphic Index Saiful Adhar; Ternala Alexander Barus; Esther Sorta Mauli Nababan; Hesti Wahyuningsih; Erlangga Erlangga; Munawwar Khalil
Jurnal Serambi Engineering Vol 5, No 3 (2020)
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v5i3.2144

Abstract

Laut Tawar Lake is located in Aceh Tengah District is the largest lake in Aceh Province. The lake, located at an altitude of 1230 meters above sea level, produces about 13 species of freshwater fish. Fish depik (Rasbora tawarensis), eyas (Rasbora sp.), and relo (Rasbora sp.) are endemic species of Laut Tawar Lake. This study aims to estimate the potential of fish production based on the value of morphoedaphic index. The observation was conducted for one year, from October 2016 until September 2017. The measurement of electric conductivity value of lake waters was conducted on 7 (seven) stations selected purposively in the lake area about 5870 hectares. The results showed that morphoedaphic index value of Laut Tawar Lake ranged from 5.10 to 7.84 with an average of 6.14. Potential of fish production in the lake is 33.47 kg/ha/yr with total potential of fish production of 196.49 ton/yr. The value shows a decrease of 10.93 kg/ha/yr over a period of 22 years. This decrease is caused by changes in morphometry parameters and water quality of Laut Tawar Lake.
Co-Authors . Elvitriana Agus Oman Sudrajat Ahmad Muhtadi Ahmad Mutadi Alvi Syahrin Angraini, Tia Ani Suryanti Aprima Matondang Arbi Maulana Arif Nuhalin Nasution Aththorick, T Alief Atni, Oky Kusuma Berliani, Kaniwa Charo Lina Kaban Delvian Delvian Delvian Desrita Desrita Desti Natalia Simbolon Dilla Ersyahdes Riski Elimasni Enzelia R Gultom Erlangga Erlangga Erman Munir Erni Jumilawaty etti sartina siregar Eva Christina S Fachri Fauzi fatimah Fatimah Fatmadhona Artamadya Fernades SP Simarmata Frandy Tulus Siahaan Hamdani Harahap Hariadi Sirait Hasan, Uswatul Hermansyah Hotnida Sinaga Indra Lesmana Ira Mutiara Lumbangaol Isnaini Nurwahyuni Johannes Keynes Harianja Julius Paolo Siregar Khairul Khairul, Khairul Khalis, Tasya Anaya Dzaki KIKI NURTJAHJA Liana Dwi Sri Hastuti Lubis, Putri Amelia Mardhatillah, Siti Margolang, Anggi R. Mars Sella Sinurat Masitta Tanjung Muhammad Zairin Jr Munawwar Khalil, Munawwar Nababan, Esther Sorta Mauli Nasution, Ahmad Luthfi Abdillah Nasution, Tulus I. Nathasya Zaharuddin NUNUK PRIYANI Onrizal Onrizal Pardosi, Sinta R Pera Herawati Puji Cintami Tambun Pulungan, Afran Rouzani Rahman Al Faris Raswin Nasution Ratna Dewi Sinaga Rizki, Rafika Rusdi Leidonald Rusdi Machrizal Safira Mustaqilla Saiful Adhar Siagian, Gunaria Silfy Anisa Nasution Simaremare, Elisabet Rosevenny Sinaga, Ade Angelia Atmanegara Sinulingga, Virna Br Supardi Harahap Supriharti, Deny Tajudddin Siregar Tantri Ayu Syahfitri Ternala A Barus Ternala A Barus Ternala Alexander Barus Ternala Alexander Barus Toberni S Situmorang TRI WULANDARI Wasmen Manalu windy windy Winni J. S Simbolon Wira Khairulsyah Wulan Apridamayanti Yoes Soemaryono Yohana, Winda Y. Yunasfi Yunasfi Zulham Apandy Harahap