Ibnu Pratikto
Jurusan Ilmu Kelautan Fakultas Perikanan dan Ilmu Kelautan Universitas Diponegoro, Semarang

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Deliniasi Batas Biogeofisik Wilayah Daratan Pesisir Rochaddi, Baskoro; Pratikto, Ibnu
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 11, No 1 (2006): Jurnal Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

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Abstract

Perencanaan untuk pengelolaan kawasan pesisir memerlukan batasan dan deskripsi mengenai kawasan daratan pesisir yang jelas. Permasalahan yang ada di Indonesia pada umumnya dan Kota Semarang pada khususnya adalah belum ditetapkannya batas wilayah pesisir baik untuk perencanaan maupun operasionalnya, sehingga sampai sekarang wilayah daratan pesisir masih diperlakukan sama seperti wilayah daratan lainnya. Maka dari itu penelitian untuk mencari batas daratan pesisir,  sangat penting dilakukan di Kota Semarang. Penelitian ini bertujuan untuk menentukan batas wilayah daratan pesisir di Kota Semarang dengan pendekatan biofisik. Penelitian lapangan dilakukan pada tanggal 21 Agustus -30 September 2004. Penelitian dilakukan di wilayah Kota Semarang, meliputi tiga sungai yaitu Sungai Plumbon, Sungai Banjir Kanal Barat, dan Sungai Banjir Kanal Timur. Adapun data intrusi air asin pada akuifer air tanah dangkal berdasarkan penelitian yang dilakukan pada tahun 2000. Materi penelitian meliputi parameter biologi (makrozoobenthos, fitoplankton, dan mangrove) dan parameter fisik (jangkauan masuknya air laut di sungai, intrusi air laut pada akuifer dangkal, kajian teoritis geologi). Dari hasil analisis kedua parameter tadi, maka selanjutnya dapat ditarik batas wilayah daratan pesisir di daerah Kota Semarang. Hasil dari tumpang tindih peta berdasarkan parameter jangkauan masuknya air laut di sungai, intrusi air laut pada air tanah dangkal, makrozoobenthos, fitoplankton dan mangrove menunjukkan bahwa batas daratan pesisir Kota Semarang secara biofisik untuk Semarang bagian barat adalah 1,7 -2,2 Km dari garis pantai, Semarang bagian tengah 1,9 -3,5 Km dari garis pantai dan untuk Semarang bagian timur 2,4 -4,8 Km dari garis pantai.   Kata kunci: batas biofisik, daratan pesisir, Semarang The delineation and description of coastal land are needed in coastal planning and management. The main problem in Indonesia especially in Semarang is the delineation for planning and operation unsettled yet. Until now coastal land still treated like others land region. Because of that the research to seek the delineation of coastal land is very important to be done. The objective of this research is to determine delineation of coastal land in Semarang by biophysical approach. The research was conducted in August 21st -September 30th 2004 in Semarang including 3 rivers which are Plumbon River, Banjir Kanal Barat River, and Banjir Kanal Timur River. The data of intrusion sea water in unconfined aquifer is based on the research in 2000. The materials of these researches were biology parameters such as (macrozoobenthos, Phytoplankton and mangrove) and physical parameters (intrusion of sea water in river, intrusion of sea water in unconfined aquifer and study of theoretical geology). Base on analysis of the parameters can be determining the delineation of coastal land in Semarang. The results of over lay map based on intrusion of sea water in river, intrusion of sea water in unconfined aquifer, macrozoobenthos, phytoplankton and mangrove parameters shows that delineation of coastal land in west part of Semarang was 1, 7 -2.2 Km from coastal line, central part of Semarang was 1, 9 -3, 5 Km from coastal line, east part of Semarang was 2, 4 -4, 8 Km from coastal line. Key words: biophysical delineation, coastal land, Semarang
Pendekatan Aspek Hukum, Geomorfologi, dan Teknik Dalam Penentuan Batas Wilayah Laut Daerah Setiyono, Heryoso; Pratikto, Ibnu; Hariyadi, Hariyadi
BULETIN OSEANOGRAFI MARINA Vol 1, No 1 (2011): Vol 1, No.1, Oktober 2011
Publisher : BULETIN OSEANOGRAFI MARINA

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Abstract The Indonesian Decree No 32 / 2004 related to the Local Authority justified the coastal region management to the province and or region. The Government law related to the coastline determination is not yet defined. Due to the problem, the international procedure of the coastline determination were descriptively analyzed base on the sea law, geomorphology and plan mapping.Key-words : regional coast line, maritime line, international sea law 
ANALISIS PERUBAHAN PENGGUNAAN LAHAN DI WILAYAH PESISIR KOTA PEKALONGAN MENGGUNAKAN DATA LANDSAT 7 ETM+ Shofiana, Rina; Subardjo, Petrus; Pratikto, Ibnu
Journal of Marine Research Vol 2, No 3 (2013) : Journal of Marine Research
Publisher : Journal of Marine Research

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The research of land use change is very important for this time, because of changes in land use have an impact on the physical and social environment. The purpose of this research is to determine the extent and causes of land use change in Pekalongan coastal area from 1999 - 2012 using the data of Landsat 7 ETM+ satellite image. This research uses unsupervissed classification method by using the Er Mapper 7.0 software. Then to analyze the land use change using overlay land use maps of 1999, 2006, and 2012 use ArcGIS 9.3 software. The results showed that the land use change in the Pekalongan coastal from 1999 - 2012 shows pool is the largest additional land use changes the amount of ± 334.91 ha. This caused by rob in the research area. While vacant land is the largest land use which have a reduction in the amount of ± 792.86 ha. It is influenced by human factors such as population growth (number and distribution), the increase was also influenced by economic and physical factors such as topography, and soil type. Based on the results of the land use change research in the Pekalongan coastal from 1999 - 2012 there are some additional and reduction.
STUDI KESESUAIAN PERAIRAN UNTUK EKOWISATA DIVING DAN SNORKELING DI PERAIRAN PULAU KERAMAT, KEBUPATEN SUMBAWA PROVINSI NUSA TENGGARA BARAT Widhianingrum, Indriani; Indarjo, Agus; Pratikto, Ibnu
Journal of Marine Research Vol 2, No 3 (2013) : Journal of Marine Research
Publisher : Journal of Marine Research

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Keramat Island is an uninhabited island and one of the favored tourism area in Sumbawa which has considerable potential as a tourist area with beautiful and unspoiled natural scenery, away from the activities surrounding communities, with a white sandy expanse full of flora and fauna and the pollution level is very small.The research was conducted in the waters of Keramat Island, Sumbawa district on September - November 2011 with the aim to determine the potential that exists in the waters of Keramat Island and assess the suitability of Keramat Island waters as diving and snorkeling ecotourism.The method used in this research is descriptive exploratory method. The analysis used in this study is an analysis of the water suitability, that is by comparing the characteristics and quality of the waters with the land usage requirements for certain tourist activities.Results of the study showed that the Keramat Island waters has a good potential for Diving and Snorkeling with the potential for the highest live coral reefs 84.15% and the lowest 38%, 5-11 Life form coral and various fish species are 40-127 species. The greater the percentage of coral reefs in the waters, the greater the species of fish and coral life form. Diving suitability of Keramat Island waters is in the S1 category (very appropriate) with IKW at Station 1-6 ranged between 90-100% and the snorkeling suitability of Keramat Island waters is in the S1 category (very appropriate) with IKW at Station 7-12 of 100%.
Tinjauan Parameter Fisik Pantai Mangkang Kulon Untuk Kesesuaian Pariwisata Pantai Di Kota Semarang Yustishar, Maulana; Pratikto, Ibnu; Koesoemadji, Koesoemadji
Journal of Marine Research Vol 1, No 2 (2012): Journal of Marine Research
Publisher : Journal of Marine Research

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Mangkang Kulon Coast has the potential to be developed to provide benefits to community. This research aimed to overview physic parameter for coastal tourism of Mangkang Kulon Coast, Mangkang Village, Tugu Distric, Semarang Regency. There are 2 beach of sampling, primary sampling on May-June 2009 and field sampling on February-March 2010. Field sampling includes measurements physic parameters and supported by secondary data. This research used descriptive and purposive sampling method. The results showed that the Coast Mangkang Kulon have the potential and suitability as a coastal tourism. The results of measurements in station I, II and III almost similar, it shows of water depth is ± 2.5 meters (< 5 meter maximum value of depth), slope coast about 3-6° so very easy to do tourism activity and oceanography aspect including waves, tides and currents available and support the marine tourism. Although there are several unfavorable parameters such as such turbidity, narrow coast, varies sands size and sand color. However, need strategy to show the better display its advantages such as convenience factor, supporting facilities to cover the shortage. In addition, the presence of mangrove can be an interesting icon visitors attention so that the government is expected to wisely choose the concept of tourism development on the coast is the most appropriate.
STUDI POTENSI PULAU PISANG BAGIAN UTARA UNTUK PERENCANAAN KAWASAN WISATA PANTAI, KABUPATEN LAMPUNG BARAT, PROVINSI LAMPUNG Sitompul, Putra Charisma Chryssa; Subardjo, Petrus; Pratikto, Ibnu
Journal of Marine Research Vol 2, No 3 (2013) : Journal of Marine Research
Publisher : Journal of Marine Research

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Faithful Cape Coast is one of Lampung destinations featured attraction and a tourist attraction in West Lampung regency which has considerable potential as a marine tourism area. This study aims to identify and assess physical potential of Pisang Island as coastal tourism area. The research was conducted in July-August 2011, this is because the month is a transitional season, when the season started, many people were coming to Pisang Island. The method used in this study is descriptive exploratory method. The analysis used in this study is the analysis of the suitability of tourism, namely by comparing the characteristics and quality of land to the land use requirements for specific tourism activities. The results of the study showed that the physical condition of the waters of North Pisang Island potential as marine tourism area, with some activity that is Coastal walk, Sun Bathing, and fishing. Based on the IKW for Coastal Walk into the category of class S1 (highly suitable) with IKW value by 93%, whereas for Sun Bathing in the category S1 (highly suitable) with IKW value by 94% and for Fishing in category S2 (Quite suitable) with IKW value by 70%.
Studi kesesuaian perairan pantai tanjung setia sebagai kawasan wisata bahari kabupaten lampung barat Provinsi lampung Aziz, Zulkifli; Subardjo, Petrus; Pratikto, Ibnu
Journal of Marine Research Vol 1, No 2 (2012): Journal of Marine Research
Publisher : Journal of Marine Research

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Faithful Cape Coast is one of Lampung destinations featured attraction and a tourist attraction in West Lampung regency which has considerable potential as a marine tourism area. This study aims to identify and assess physical potential of Cape Coast Faithful as marine tourism area. This study aims to identify and assess physical potential of Cape Coast Faithful as marine tourism area. The results of the study showed that the physical condition of the waters of Cape Coast Faithful potential as marine tourism area, with some activity that is surfing (Surfing), diving (Diving), and fishing (Fishing). Based on the IKW for surfing activities (Surfing) into the category of class S1 (very suitable) with IKW value by 80%, whereas for diving (Diving) and fishing (Fishing) in the category S2 (quite appropriate) with each IKW value of 70% for diving (Diving), and 64% for fishing activities (fishing).
STUDI POTENSI PANTAI SINDANGKERTA DI KABUPATEN TASIKMALAYA UNTUK PENGEMBANGAN WISATA BAHARI Suryani, Dietta; Pratikto, Ibnu; Koesoemadji, Koesoemadji
Journal of Marine Research Vol 2, No 3 (2013) : Journal of Marine Research
Publisher : Journal of Marine Research

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Sindangkerta Beach in Cipatujah is one of tourism object in South Tasikmalaya which has considerable potential as marine tourism area. The government doesn’t pay much attention makes this area couldn’t develop optimally. In addition, management data is very minimum. The study aims to indentify Sindangkerta Beach potential for marine tourism area. The research was held on February until March 2012. Those months is the last period of the rainy season in Indonesia but it wasn’t discourage the tourists to came to Sindangkerta Beach. The study used description analysis which is describes the real condition in the field and analysis of the suitability of tourism. This type analysis is compared the characteristics and quality of land to land use requirements for specific tourism activities. The result showed that Sindangkerta Beach has many unique things such as upraised coral area, culture attraction and has adequate facilities for supporting tourism activities, Based on the result of Indeks Kesesuaian Wisata (IKW), Sindangkerta Beach is very suitable (S1) for beach recreation. As for Taman Saut the value is 83.57%, for Taman Lengsar is 80% and 82.85% for Ketapang Beach which are the places result into S1 class or very suitable.
KAJIAN STRUKTUR DAN KOMPOSISI VEGETASI MANGROVE DI KAWASAN PESISIR DESA PASAR BANGGI, KABUPATEN REMBANG Saputro, Irawan; Pribadi, Rudhi; Pratikto, Ibnu
Journal of Marine Research Vol 2, No 4 (2013) : Journal of Marine Research
Publisher : Journal of Marine Research

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The condition of an ecosystem mangrove in the Pasar Banggi appertain one of the best in northern coast in central java. Management mangrove ecosystem there begin since the 1960s with conduct rehabilitation especially independently by the community. This condition, is perceived as a good condition and could be a good example to be applied in other areas. The purpose of this study is to know about the structure and composition of mangrove vegetation in Coastal Pasar Banggi Village, Rembang District. Vegetation data taking based on purposive sampling method and every transect made sampling plot. Each tree (plot 10 m x 10 m) and sapling (subplot 5 m x 5 m) identified and measured on diameter at breast height (± 1.3 m). Seedling calculated the amount of each species and the percentage of cover on subplot 1 m x 1 m. The result of research in Pasar Banggi Village was found 11 mangrove species. Generally, tree mangrove in Pasar Banggi Village have the range of density 100 ind/ha – 2533 ind/ha which dominated by Rhizophora mucronata. The Index of diversity (H’) and Eveness (J’) of mangrove vegetation in Coastal Pasar Banggi Village, Rembang District, were in low category.
Komunitas Ikan di Perairan Kawasan Pulau Parang, Kepulauan Karimunjawa, Jepara (Fish Community at Parang Waters of Karimunjawa Island) Pribadi, Rudhi; Endrawati, Hadi; Pratikto, Ibnu
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 18, No 1 (2013): Jurnal Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

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Kawasan mangrove merupakan salah satu habitat ikan yang penting. Penelitian ini bertujuan untuk mengidentifikasi ikan di kawasan perairan bervegetasi mangrove Pulau Parang, Kepulauan Karimunjawa. Pengambilan contoh ikan dilakukan dengan gillnet sedangkan juvenil ikan diambil menggunakan Bonggo net dengan menyisir kolom perairan secara horizontal menggunakan perahu selama 10-15 menit pada kecepatan ±2 knot pada waktu pagi hari. Sampel ikan diawetkan dengan formalin 10% dan di laboratorium diganti dengan alkohol 70% untuk pengawetan yang lebih lama selanjutnya diidentifikasi. Kepadatan populasi ikan dihitung per stasiun dari seluruh contoh yang diamati. Contoh air diambil menggunakan water sampler, dan beberapa parameter perairan (suhu udara, suhu air, kedalaman, kecerahan, pH, DO) diukur secara langsung. Penelitian ini menemukan 7 spesies juvenil ikan di perairan bervegetasi mangrove Pulau Parang, yaitu Apogon ceramensis, Sphaeramia orbicularis, Hypoatherina barnesi, Zenarchopterus dispar, Zenarchopterus gilli, Gerres argyreus, dan Lethrinus lentjan yang termasuk dalam 5 famili, yaitu Apogonidae, Atherinidae, Hemiramphidae, Gerreidae, dan Lethrinidae. Pada saat bulan Juni ditemukan lebih sedikit jenis ikan dan jumlah individu juvenil ikan dibandingkan sampling bulan September 2012. Lebih banyak juvenil ini dimungkinkan adanya rekruitmen di daerah mangrove tersebut. Selama penelitian paling sedikit ditemukan 28 jenis ikan di perairan Pulau Parang yang terdiri dari 15 famili. Terdapat banyak perbedaan individu pada lokasi yang sama yaitu stasiun Batu Merah pada dua kali sampling. Hal ini menandakan daerah tersebut sebagai tempat mencari makan bagi ikan. Kata kunci:  ikan, mangrove, Pulau Parang, Kepulauan Karimunjawa   Mangrove ecosystem is recognised as essential habitat for many species of fishes. The study was aimed to identify community structure of mangrove fishes of Parang Island, Karimunjawa Islands. Adult fish was trapped using gillnet, while its juvenile collected using a larva-net tow horizontally by small boat for 10-15 minutes of 2knot speed along the mangrove waters in the morning. Sample was initially preserved in 10% formaldehyde then in 70% alcohol prior to further identification. Fish abundance was estimated on each station, and ambient parameter (water and air temperature, water depth, clarity, pH and DO) was measured insitu. The result shown that at least 7 species of fishes were found in Parang Island i.e.: Apogon ceramensis, Sphaeramia orbicularis, Hypoatherina barnesi, Zenarchopterus dispar, Zenarchopterus gilli, Gerres argyreus, and Lethrinus lentjan which taxonomically belongs to 5 families i.e.; Apogonidae, Atherinidae, Hemiramphidae, Gerreidae, and Lethrinidae. Less species was found in June rather in September sampling period, which possibly indicating of fish recruitmen on that mangrove ecosystem. In total 28 fish species of 15 families were found across all study sites in Parang Island and its surrounding waters. Species diversity among different sampling time, such as in Batu Merah Station, was also varied which possibly indicating that the site is feeding ground for many species in the area. Keywords: fish, mangrove, Parang Island, Karimunjawa Islands