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All Journal Jurnal Perikanan dan Kelautan Aquacoastmarine Jurnal Equity Ekonomi dan Bisnis SABDAMAS Jurnal Ilmu Ekonomi dan Sosial (JIES) Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan Equity
Nurmatias Nurmatias
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Pengaruh Garam (NaCl) terhadap Pengendalian Infeksi Argulus sp. pada Ikan Mas (Cyprinus carpio) The Influence of Salt (NaCl) against Argulus sp. Infection Control on Goldfish (Cyprinus carpio) Anasthazya Christy Hanna Sinaga; Syammaun Usman; Nurmatias Nurmatias
AQUACOASTMARINE Vol 3, No 5 (2015): JURNAL AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

The development of goldfish cultivation has a good prospect due to theincreasing market demand. But the attack Argulus sp. on hatchery goldfish is a seriousproblem that can cause a loss of the farmers that is decreased production of fish, as wellas the low value. This research aims to know the extent to which the effectiveness saltagainst Argulus sp. infection in goldfish (Cyprinus carpio) and to know the optimallevels of salt in the control of infection of Argulus sp. on goldfish. This study used aRandomized Complete Design (RAL), namely 3 and 1 control treatment with eachtreatment was repeated as many as 3 times, with a dose of the treatment 3 ppt, 6 ppt, 9ppt. Data analyzed with ANOVA. The results showed that the giving of the salt effecton the value of the prevalence, intensity of infection of Argulus sp. and survival rate ofgoldfish. The concentration of salt in controlling attacks Argulus sp. found in thetreatment of the G3 (9 ppt) that is the value of the prevalence of 60,17%, the value ofthe intensity of 1,54 ind/tail with survival rates of fish 93,33%.Key words : Cyprinus carpio, Argulus sp., salt (NaCl), prevalence, intensity
Penambahan Berbagai Sumber Beta Karoten Alami Dalam Pakan Terhadap Peningkatan Kecerahan Warna Ikan Koi (Cyprinus carpio) Issue of Various Sources of Natural Beta Carotene In Feed To Koi Fish (Cyprinus carpio) Color Brightness Enhancement Evan Aspirata Hulu; Syammaun Usman; Nurmatias Nurmatias
AQUACOASTMARINE Vol 3, No 5 (2015): JURNAL AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

The potential for aquaculture in Indonesia has a very promising opportunity.The ornamental fish have a beauty value of its body shape, active movement and colordiversion. Koi (Cyprinus carpio) is one type of ornamental fish that can be cultered. Koifish which have beautiful and bright colors can be have a high value. Natural colormatters in feed is done to improve and maintain the color of ornamental fish. Materialsof beta carotene used were astaxanthin, carrot powder and spirulina. The purpose ofthis research is to determine the best effect of natural beta carotene issue to increasecolors brightness in koi fish and determine the treatment efficient or not. This researchused Completely Randomized Design (CRD) with four treatments: T (without givingcolor material), W (carrots), S (spirulina) and A (astaxanthin) each of dose 3% andthree repetition. Data were analyzed with ANOVA system. The result has shown thatissue 3% of astaxanthin produce the best color brightness at 0,97 point than the othertreatment. The result showed that the treatment of color materials issue in feed wasefficient (benefit) because of the efficiency values smaller than 1 (one).Keywords: Cyprinus carpio, koi fish, color, carotenoids
TINGKAT PENGGUNAAN Azolla pinnata PADA PAKAN TERHADAP PERTUMBUHAN IKAN NILA (Oreochromis niloticus) Grade of use of azolla pinnata the feed to growth of nila fish (Oreochromis niloticus) Daniel Sinaga; Syammaun Usman; Nurmatias Nurmatias
AQUACOASTMARINE Vol 4, No 1 (2016): JURNAL AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Nila fish is economic valuable fish, consumer demand increasing, but hasnot been followed by intensive cultivation and optimal. One of attempt toovercome these problems by substituting commercial feed with fish meat mealAzolla pinnata for growth nila fish. The tested fish are nila fish size 6 cm whichmaintained in an pain diameter 50 cm by 12 unit. With completely randomizeddesign. With treatment commercial pakan 100% without added azolla flour,commercial pakan 94 % added 10 % azolla flour, commercial pakan 88 %added 20 % azolla flour, and commercial pakan 82 % added 30 % azolla flour,the result showed that azolla flour can be used as a substitute for fish meal in fishfeed. The fourth feed that gives the best growth as feeds commercial pakan 82 %added 30 % azolla flour with weight growth of 4.33 g and length growth 2.23 cm.Keywords : Oreochromis niloticus, Azolla pinnata flour, Growth
ANALISIS KANDUNGAN FOSFOR TERHADAP DAYA DUKUNG PERAIRAN DANAU LUT TAWAR UNTUK BUDIDAYA SISTEM KERAMBA JARING APUNG Fikri Fachriza; Eri Yusni; Nurmatias Nurmatias
AQUACOASTMARINE Vol 4, No 1 (2016): JURNAL AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Lake Lut Tawar is the one of lake in Aceh province. The waters of Lake Lut Tawar used for agricultural activities, settlements, tourism and fisheries. Specifically for fisheries activities in Lake Lut Tawar, existence of floating net aquaculture increase by time to time. The existence of floating net aquaculture activities affect for water quality through feed waste, feces and dead fish. This study aims to determine how big the carrying capacity the waters of Lake Lut Tawar with floating net system of aquaculture, that is based on the presence of phosphorus using the formula of the Minister of Environment Regulation No. 28 of 2009. The research was conducted in January to Mai 2015, sempel capture location is determined based on the environment setting used purposive sampling method. The results showed quality the waters of Lut Tawar Lake still in the freshwater quality standard of Grade II PP 82 of 2001, and the carrying capacity the waters of Lut Tawar lake with total phosphate 0.1407 mg/L was at 23728.61 tons/year as well as the waters area that could be used for floating net cages measuring 19.291 hectaresKeywords: Carrying Capacity, Floating net, Lake Lut tawar
PENGARUH EKSTRAK DAUN Sonneratia alba TERHADAP INFEKSI BAKTERI Aeromonas hydrophila PADA IKAN NILA The Effect of Sonneratia alba Leaf Extract on Aeromonas hydrophila Bacterial Infection in Tilapia Dumaria R. M. L Tobing; Yunasfi Djayus; Nurmatias Nurmatias
AQUACOASTMARINE Vol 5, No 3 (2017): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Motile Aeromonas Septicemia (MAS) is a disease that attacks on the tilapia fish farming, both in the phase of seed and adult. One of alternative to prevent disease by using the extracts from mangrove plants. The aims of this study was to determine the effectiveness of Sonneratia alba leaf extract in tackling MAS disease in Nila fish and to determine the dose of S. alba extract on Tilapia fish. The extraction from S. alba leaves was made into powder form and then combined with artificial feed type FF-999. The LD50 test was performed on Nila fish for 24 hours. This study used Completely Randomized Design with four treatments: P0 (without of extract S. alba), P1 (1% extract S. alba), P2 (2% extract S. alba), P3 (3% extract S. alba). The results showed that the treatment of P1 and P2 could inhibit the growth of A. hydrophila.Keywords : Sonneratia alba, Tilapia, Antimicrobial Activity, Aeromonas hydrophila.
Absorbsi Kadmium (Cd) dan Timbal (Pb) oleh Bandeng (Chanos chanos) pada Tambak Komplangan di Desa Tanjung Rejo Kecamatan Percut Sei Tuan Daniel Abas Herman Silalahi; Yunasfi Djayus; Nurmatias Nurmatias
AQUACOASTMARINE Vol 6, No 3 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Aplication of silvofishery cultivation technique in TanjungRejo Village, PercutSei Tuan Sub District still not well managed. This happens because it enters The PaluhMerbau water source directly without water management process first. Remembering The PaluhMerbau is still intersect with Deli Estuary that has been polluted heavy metals then the autors are interested to do this research. This study aims to calculate the amount of heavy metal concentrationabsorbed by milkfishin Tanjung Rejo Village Percut Sei Tuan Subdistrict.This scientific report surveyed within a month in July 2017 and analyzed using an atomic absorption spectrophotometer (AAS).The result of UPT LPPMHP Medan test showed that the concentration of cadmium and lead on milkfish’s liver and milkfish’s gill has been contaminated by heavy metals cadmium and lead but still belowquality standards.Keywords: Heavy metal, cadmium, lead, milkfish and silvofishery.
Status dan sebaran mangrove di kawasan konservasi Taman Pulau Kecil, Kabupaten Tapanuli Tengah, Provinsi Sumatera Utara Ahmad Muhtadi; Zulham Apandy Harahap; Ahyar Pulungan; Nurmatias Nurmatias; Pardamean Lubis; Zufriwandi Siregar; Rudolf Y. Ompusunggu; Fauzan Aulia
Depik Vol 9, No 2 (2020): August 2020
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (863.191 KB) | DOI: 10.13170/depik.9.2.15065

Abstract

Mangroves are an important part of determining conservation areas as well as determining zoning within conservation areas. Therefore, information on the status and distribution of mangroves is essential in managing conservation areas. This study was conducted in Taman Pulau Kecil, Central Tapanuli District. The data was collected in June 2019. The sampling sites consisted 26 points (1-15 at the Mursala Island and its surroundings and 16-27 in the Tapian nauli Bay (maindland)). The study revealed 17 mangrove species from 9 families consisted of 14 true mangroves and 3 associated mangroves namely pandan (Pandanus tectorius), waru (Thespesia populnea), and ketapang (Terminalia catappa). Analysis of the importance of mangrove species in Taman Pulau Kecil, Central Tapanuli district showed that Rizophora, Xilocarpus, and Bruguiera have a large influence and role in the mangrove vegetation community. Mangroves in conservation area at Taman Pulau Kecil were in the good category. However, the condition and status of mangroves in Tapian Nauli Bay had better condition with the density of 3.120 ind/ha while in Mursala  Island and its surroundings with density of 2.356 ind/ha.Keywords: Mangrove, Marine Protected area, Mursala Island, Tapian Nauli BayABSTRAKMangrove merupakan salah satu ekosistem penting dalam penentuan kawasan konservasi serta dalam penentuan zonasi di dalam kawasan konservasi. Oleh karena itu, informasi status dan sebaran mangrove penting dalam upaya pengelolaan kawasan konservasi. Lokasi pengambilan data mangrove di kawasan konservasi daerah Taman Pulau Kecil Kabupaten Tapanuli Tengah. Pengambilan data dilakukan pada bulan Juni 2019. Lokasi pengambilan data pada 26 titik pengamatan yang terdiri dari titik 1-15 di Pulau Mursala dan sekitarnya dan titik 16-27 di Teluk Tapaian Nauli (pulau sumatera). Hasil penelitian ditemukan 17 spesies mangrove dari 9 famili. Jenis mangrove tersebut terdiri dari 14 mangrove sejati dan 3 mangrove ikutan yaitu pandan (P. tectorius), waru laut (Thespesia populnea), dan ketapang (Terminalia catappa). Analisis nilai penting jenis mangrove di KKPD Taman Pulau Kecil Tapanuli Tengah menunjukkan bahwa Rizophora, Xilocarpus, dan Bruguiera memiliki pengaruh dan peran yang besar dalam komunitas vegetasi mangrove. Mangrove di KKPD Taman Pulau Kecil Tapanuli Tengah termasuk kategori baik. Namun kondisi dan status mangrove di Teluk Tapian Nauli lebih baik dengan kerapatan rata-rata 3,120 ind/ha dibanding di Pulau Mursala dan sekitarnya dengan kerapatan rata-rata 2,356 ind/ha.Kata kunci: Mangrove, Kawasan konservasi perairan, Pulau Mursala, Teluk Tapian Nauli
Status dan sebaran mangrove di kawasan konservasi Taman Pulau Kecil, Kabupaten Tapanuli Tengah, Provinsi Sumatera Utara Ahmad Muhtadi; Zulham Apandy Harahap; Ahyar Pulungan; Nurmatias Nurmatias; Pardamean Lubis; Zufriwandi Siregar; Rudolf Y. Ompusunggu; Fauzan Aulia
Depik Vol 9, No 2 (2020): August 2020
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.9.2.15065

Abstract

Mangroves are an important part of determining conservation areas as well as determining zoning within conservation areas. Therefore, information on the status and distribution of mangroves is essential in managing conservation areas. This study was conducted in Taman Pulau Kecil, Central Tapanuli District. The data was collected in June 2019. The sampling sites consisted 26 points (1-15 at the Mursala Island and its surroundings and 16-27 in the Tapian nauli Bay (maindland)). The study revealed 17 mangrove species from 9 families consisted of 14 true mangroves and 3 associated mangroves namely pandan (Pandanus tectorius), waru (Thespesia populnea), and ketapang (Terminalia catappa). Analysis of the importance of mangrove species in Taman Pulau Kecil, Central Tapanuli district showed that Rizophora, Xilocarpus, and Bruguiera have a large influence and role in the mangrove vegetation community. Mangroves in conservation area at Taman Pulau Kecil were in the good category. However, the condition and status of mangroves in Tapian Nauli Bay had better condition with the density of 3.120 ind/ha while in Mursala  Island and its surroundings with density of 2.356 ind/ha.Keywords: Mangrove, Marine Protected area, Mursala Island, Tapian Nauli BayABSTRAKMangrove merupakan salah satu ekosistem penting dalam penentuan kawasan konservasi serta dalam penentuan zonasi di dalam kawasan konservasi. Oleh karena itu, informasi status dan sebaran mangrove penting dalam upaya pengelolaan kawasan konservasi. Lokasi pengambilan data mangrove di kawasan konservasi daerah Taman Pulau Kecil Kabupaten Tapanuli Tengah. Pengambilan data dilakukan pada bulan Juni 2019. Lokasi pengambilan data pada 26 titik pengamatan yang terdiri dari titik 1-15 di Pulau Mursala dan sekitarnya dan titik 16-27 di Teluk Tapaian Nauli (pulau sumatera). Hasil penelitian ditemukan 17 spesies mangrove dari 9 famili. Jenis mangrove tersebut terdiri dari 14 mangrove sejati dan 3 mangrove ikutan yaitu pandan (P. tectorius), waru laut (Thespesia populnea), dan ketapang (Terminalia catappa). Analisis nilai penting jenis mangrove di KKPD Taman Pulau Kecil Tapanuli Tengah menunjukkan bahwa Rizophora, Xilocarpus, dan Bruguiera memiliki pengaruh dan peran yang besar dalam komunitas vegetasi mangrove. Mangrove di KKPD Taman Pulau Kecil Tapanuli Tengah termasuk kategori baik. Namun kondisi dan status mangrove di Teluk Tapian Nauli lebih baik dengan kerapatan rata-rata 3,120 ind/ha dibanding di Pulau Mursala dan sekitarnya dengan kerapatan rata-rata 2,356 ind/ha.Kata kunci: Mangrove, Kawasan konservasi perairan, Pulau Mursala, Teluk Tapian Nauli
Status dan sebaran mangrove di kawasan konservasi Taman Pulau Kecil, Kabupaten Tapanuli Tengah, Provinsi Sumatera Utara Ahmad Muhtadi; Zulham Apandy Harahap; Ahyar Pulungan; Nurmatias Nurmatias; Pardamean Lubis; Zufriwandi Siregar; Rudolf Y. Ompusunggu; Fauzan Aulia
Depik Vol 9, No 2 (2020): August 2020
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.9.2.15065

Abstract

Mangroves are an important part of determining conservation areas as well as determining zoning within conservation areas. Therefore, information on the status and distribution of mangroves is essential in managing conservation areas. This study was conducted in Taman Pulau Kecil, Central Tapanuli District. The data was collected in June 2019. The sampling sites consisted 26 points (1-15 at the Mursala Island and its surroundings and 16-27 in the Tapian nauli Bay (maindland)). The study revealed 17 mangrove species from 9 families consisted of 14 true mangroves and 3 associated mangroves namely pandan (Pandanus tectorius), waru (Thespesia populnea), and ketapang (Terminalia catappa). Analysis of the importance of mangrove species in Taman Pulau Kecil, Central Tapanuli district showed that Rizophora, Xilocarpus, and Bruguiera have a large influence and role in the mangrove vegetation community. Mangroves in conservation area at Taman Pulau Kecil were in the good category. However, the condition and status of mangroves in Tapian Nauli Bay had better condition with the density of 3.120 ind/ha while in Mursala  Island and its surroundings with density of 2.356 ind/ha.Keywords: Mangrove, Marine Protected area, Mursala Island, Tapian Nauli BayABSTRAKMangrove merupakan salah satu ekosistem penting dalam penentuan kawasan konservasi serta dalam penentuan zonasi di dalam kawasan konservasi. Oleh karena itu, informasi status dan sebaran mangrove penting dalam upaya pengelolaan kawasan konservasi. Lokasi pengambilan data mangrove di kawasan konservasi daerah Taman Pulau Kecil Kabupaten Tapanuli Tengah. Pengambilan data dilakukan pada bulan Juni 2019. Lokasi pengambilan data pada 26 titik pengamatan yang terdiri dari titik 1-15 di Pulau Mursala dan sekitarnya dan titik 16-27 di Teluk Tapaian Nauli (pulau sumatera). Hasil penelitian ditemukan 17 spesies mangrove dari 9 famili. Jenis mangrove tersebut terdiri dari 14 mangrove sejati dan 3 mangrove ikutan yaitu pandan (P. tectorius), waru laut (Thespesia populnea), dan ketapang (Terminalia catappa). Analisis nilai penting jenis mangrove di KKPD Taman Pulau Kecil Tapanuli Tengah menunjukkan bahwa Rizophora, Xilocarpus, dan Bruguiera memiliki pengaruh dan peran yang besar dalam komunitas vegetasi mangrove. Mangrove di KKPD Taman Pulau Kecil Tapanuli Tengah termasuk kategori baik. Namun kondisi dan status mangrove di Teluk Tapian Nauli lebih baik dengan kerapatan rata-rata 3,120 ind/ha dibanding di Pulau Mursala dan sekitarnya dengan kerapatan rata-rata 2,356 ind/ha.Kata kunci: Mangrove, Kawasan konservasi perairan, Pulau Mursala, Teluk Tapian Nauli
Dampak Covid-19 terhadap Financial Market di Indonesia Hadi, Prasetyo; Primta Surbakti, Lidya; Nurmatias, Nurmatias
EQUITY Vol 25 No 1 (2022): EQUITY
Publisher : Department of Accounting, Faculty of Economics and Business, Universitas Pembangunan Nasional Veteran Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34209/equ.v25i1.2733

Abstract

Covid-19 secara global lebih mengoncangkan ekonomi jika dibandingkan dengan the Great Financial Crisis pada 2007–2008. Hal ini dibuktikan dengan index harga saham gabungan (IHSG) di bursa efek Indonesia mengalami penurunan harga saham yang sangat signifikan.Tujuan penelitian ini adalah untuk mengetahui pengaruh covid-19 terhadap financial market di Indonesia.  Menggunakan Pooled data dan STATA 13 digunakan untuk menganalisis data. Sample penelitian ini adalah 44 IHSG harian dengan 9 sektor di Bursa Effek Indonesia untuk masa pembatasan sosial berskala besar (PSBB) dikarenakan Covid-19 ini dimulai 20 Maret 2020 sampai 29 Mei 2020. IHSG untuk semua sektor di BEI yang digunakan untuk mengukur financial market di Indonesia. Penelitian ini menemukan bahwa makin tinggi Covid19 maka semakin tinggi harga saham  pada sector agribisnis, sector industry kimia dasar, sector industry lainnya, sector barang konsumsi, sektor  sedangkan untuk sector perdagangan tidak ada pengaruhnya. Untuk sector property dan dan sector keuangan semakin tinggi Covid-19 semakin rendah harga saham. Investor mungkin dapat menggunakan temuan ini untuk memahami peran penting dari peningkatan Covid-19 di Indonesia.
Co-Authors Absalom, Ombri Ahmad Muhtadi Ahmad Muhtadi Anasthazya Christy Hanna Sinaga Artha Maria Gabriella Sitorus Aryalan Ginting Daniel Abas Herman Silalahi Daniel Sinaga Darma Bakti Desita Sari Br Ginting Dewi Murni Tampubolon Dumaria R. M. L Tobing Eri Yusni Evan Aspirata Hulu Fauzan Aulia Fauzi, Arfian Fikri Fachriza Henny Fitriani S I Gusti Ngurah Antaryama Kirana, Dwi Jaya Muchtar Ahmad Nobelson, Nobelson Pardamean Lubis Pindi Patana Prasetyo Hadi Primta Surbakti, Lidya Ricky Suranta Barus Rudolf Y. Ompusunggu Syammaun Usman Tommy Patria Marbun Yoko Tristiarto Yunasfi Djayus Zufriwandi Siregar Zulham Apandy Harahap