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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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Journal : Aquacoastmarine

 1 
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.
STRUKTUR DAN KOMPOSISI VEGETASI MANGROVE DI DUSUN II DESA PULAU SEMBILAN KECAMATAN PANGKALAN SUSU KABUPATEN LANGKAT SUMATERA UTARA Yolanda Rizwany; Yunasfi Yunasfi; Ahmad Mutadi
AQUACOASTMARINE Vol 4, No 3 (2016): JURNAL AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Mangrove forest ecosystem is a type of forest that are mostly located along the coast or a river that survival is affected by the tide. Ecosystems mangrove in village II of sembilan island has long used surrounding peoples for land aquaculture and firewood. This research aims to determine the structure and composition of mangrove vegetation, water quality, soil pH conditions and the substrate. This research is done in March 2016 till May 2016. The research was conducted sampling analysis of vegetation transect method. Mangrove species found in the research is 27 species of 12 families. Mangrove density value at station I 4700 ind/ha, station II 4767 ind/ha, station III 4067 ind/ha, station IV 4800 ind/ha, station V 3667 ind/ha. Based on living environment minister No. 201/2004, the density of mangrove in village II of Sembilan Island included in the category of very dense (both categories). The quality of physical and chemical water, for the parameters temperature range of 29-30°C, the current velocity 0,045-0,017 m/s, pH of the water 7.03-7.33, salinity 24-26o/oo and soil pH 6,59-7,21. The value is still quite ideal (optimum) for mangrove growth. Mangrove substrate types in this research is loam, clay, sandy clay loam, and sandy clay.Key Words : Mangrove, Sembilan island, Substrate, Water quality
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