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BULETIN OSEANOGRAFI MARINA

buloma
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Published by Universitas Diponegoro

ISSN : 20893507 EISSN : 25500015 DOI : -

Core Subject : Science,

Earth & Planetary Sciences

Buletin Oseanografi Marina (BULOMA) adalah jurnal yang menginformasikan hasil penelitian dan telaah pustaka tentang aspek Oseanografi, Ilmu Kelautan, Biologi Laut, Geologi Laut, Dinamika Laut dan Samudera, Estuari, Kajian Enerji Alternatif, Mitigasi Bencana, Sumberdaya Alam Pesisir, Laut dan Samudera.

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Articles 12 Documents

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Search results for , issue "Vol 1, No 1 (2011): Buletin Oseanografi Marina" : 12 Documents clear

Aplikasi Budidaya Rumput Laut Eucheuma cottonii (Weber van Bosse) Dengan Metode Jaring Lepas Dasar (Net Bag) Model Cidaun Nirwani Soenardjo
Buletin Oseanografi Marina Vol 1, No 1 (2011): Buletin Oseanografi Marina
Publisher : Universitas Diponegoro

Abstract Eucheuma cottonii (Weber van Bosse) is a marine commodity, wich need several particuliarly treatment in the enviroment due to their cultivation. The floating cultivation model cidaun using the net for sea grass cultivation is the preference methods to protec the thallus. The aim of the research is to find the specific growth rate of the Euheuma cottonii at the Bantarpanjang Nusakambangan Island. The eksperiment were done from April to Mei 2004. The research eksperiment based on the randomize with factorial approach 2 x2. The amount of seed (100 gr , 150 gr) and the seagrass distance ( 1,5 m , 2 m ) were aplied as the treatment with 5 replications. The research result show that the specific growth rate reach 4,4 % , wich justified that the cidaun floating methode can be applied as the cultivation methode. Key Words : Eucheuma cottonii, Cultivation, Cidaun floating metode, specific growth rate

Kondisi Terumbu Karang dengan Indikator Ikan Chaetodontidae di Pulau Sambangan Kepulauan Karimun Jawa, Jepara, Jawa Tengah. Suryanti Suryanti; Supriharyono Supriharyono; Willy Indrawan
Buletin Oseanografi Marina Vol 1, No 1 (2011): Buletin Oseanografi Marina
Publisher : Universitas Diponegoro

Abstract Coral reefs are marine ecosystems in tropical marine life constructed by the producer of lime in particular species of stony corals and calcareous algae, together with the biota that live in the bottom of which is a types of molluscs, crustaceans, echinoderms, Polychaeta, Sponge and tunicates and marine biota others are living freely in the surrounding waters. Chaetodontidae or butterfly fish is ordinary reef fish while the distribution in surround coral reef only. The experts agreed on placing fish leadership as "indicator species" of coral reef condition, because this fish is a true coral reef inhabitants. This study aims to identify relationships between the abundance of coral reef condition Chaetodontidae fish in waters of Sambangan Islands, Karimun java, Jepara, Central Java. Research was conducted in July 2010 in waters Sambangan Island, National Park Karimunjawa. The research method is field observation method with the sampling method using the line transect method (line transect) on coral and fish transect data on fish along the 30m data. Data taken in this study are the data of physical parameters, data, coral cover and fish abundance. Results from this study showed that the percentage of coral coverage at a depth of three meters amounted to 70.92% and at a depth of 10 meters amounted to 66.05%. Closing percentage is the highest Reef on the West side of site B with a depth of three meters is equal to 82.50% while the percentage of closures of the least Reef is on the East side of site A with a depth of 10 meters that is equal to 64.80%. Types of coral reef growth that dominated in the waters of the island is Acropora Branching Sambangan. Percentage value of 16.71. The average abundance of fish on each transect Chaetodontidae with a depth of 10 meters (10 individuals / transect) is smaller than the depth of three meters (11 individuals / transect). The relationship between the abundance of fish Chaetodontidae with Closure Percentage Sambangan Coral Island at a depth of 3 meters is strong (Significant) and Positive (DC), whereas at a depth of 10 meters is a weak (non-Significant) and Positive (DC). Keywords : percentage of coral coverage, Abundance of fish Chaetodontidae

Toksisitas Ekstrak Metanol Spirulina sp terhadap nauplii Artemia sp. Suryono Suryono; Ervia Yudiati
Buletin Oseanografi Marina Vol 1, No 1 (2011): Buletin Oseanografi Marina
Publisher : Universitas Diponegoro

Abstract BSLT (Brine Shrimp Lethality Test) was conducted on crude ectract of Spirulina sp. The extraction was done by added methanol solution. The Spirulina extract tested to newly hatched Artemia sp. nauplii. The objective of this study was to analize the mortality of the nauplii dan to determine the LC50-24h level. The result showed that the bioactive compound of Spirulina sp had a high toxicity level (LC50-24h: 113.2 ppm). It can be concluded that this specific microalgae had a potential source of medicine. Keywords: Spirulina sp, BSLT,crude extract.

ANALISA SPEKTRUM GELOMBANG BERARAH DI PERAIRAN PANTAI KUTA, KABUPATEN BADUNG, BALI Purwanto Purwanto
Buletin Oseanografi Marina Vol 1, No 1 (2011): Buletin Oseanografi Marina
Publisher : Universitas Diponegoro

Analisis Respon Spektral dan Ekstraksi Nilai Spektral Terumbu Karang Pada Citra Digital Multispektral Satelit ALOS-AVNIR di Perairan Gugus Pulau Pari, Kepulauan Seribu, Jakarta. Muhammad Helmi; Agus Hartoko; Herkiki S; Munasik Munasik; S Wouthuyzen
Buletin Oseanografi Marina Vol 1, No 1 (2011): Buletin Oseanografi Marina
Publisher : Universitas Diponegoro

Abstract Coral reef and other coastal ecosystem map are very important spatial data to provide for many coastal management and planning purposes in Indonesia. Pari Islets of Thousand Islands in the northern coast of Jakarta has great variation on complex coastal ecosystem, such as beach forest, mangrove, coral reefs and seagrass. These rather large shallow and clear water islets could be ideal for satellite image spectral-respond study. The study aimed to asses spectral respond and spectral value of coral reef extraction on ALOS-AVNIR multispectral-satellite image in Pari Islets of Thousand Islands, Jakarta. THSI 4-band multispectral satellite image dated 30 April 2008 (JAXA, 2008) with 10 m spatial resolution. Ground survey was conducted in 85 sampling points between June-July 2009. A set of image processing method including geometric correction, atmospheric calibration (enhanced dark pixel correction), water column correction, Lyzenga transform, Hue Saturation Intensity (HSI) transform, Principle Component 1, scattergram analysis, spectral comparison, was applied for the multispectral image analysis, accompanied by a Line Intercept Transect (LIT) and Manta-taw field survey for the coral reef study. The result showed that coral reef covers area in Pari islets were 249.9 ha (26.5%), seagrass 313.6 ha (33.3%) and shallow water sand 378.9 ha (40.2%). Spectral characteristic of green and red band were much better on differentiating between coral reef and other shallow water substrate compared to the other bands. Visually coral reef identification on HSI transformed image much easier compared to on Lyzenga transformed image. The map accuracy on HSI (88.1%) also higher than Lyzenga (77.3%). Spectral values of coral reef on scattergram were clumped only on specific location and easily differentiated from other shallow water substrates, and so coral reef patch on ALOS-AVNIR satellite image could be extracted directly from the scattergram. Key Word: Spectral respond, Coral reef, ALOS-AVNIR, Multispectral

Pendekatan Aspek Hukum, Geomorfologi, dan Teknik Dalam Penentuan Batas Wilayah Laut Daerah Heryoso Setiyono; Ibnu Pratikto; Hariyadi Hariyadi
Buletin Oseanografi Marina Vol 1, No 1 (2011): Buletin Oseanografi Marina
Publisher : Universitas Diponegoro

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

STUDI PENYEBARAN SEDIMEN TERSUSPENSI DI MUARA SUNGAI PORONG KABUPATEN PASURUAN Warsito Atmodjo
Buletin Oseanografi Marina Vol 1, No 1 (2011): Buletin Oseanografi Marina
Publisher : Universitas Diponegoro

Abstract Estuary is part of the downstream that straightly related to the sea which function as expenseas of water river (Triatmodjo, 1999). Sediment transport which came from river and sea will be akumulated in estuary. That akumulated make effect to changes of the depth in that area. The purpose from this research is to know about the suspended sediment spreading in Porong estuary. The research was done in three stages which were field survey on April 5th until 24th 2008, laboratory analysis to bottom sediment samples on May 5th until 27th 2008 in Core Laboratory Marine Geology Research and Development Centre Cirebon and suspended sediment analysis on June 13th 2008 in Water Laboratory Environmental Engineering, Civil and Environmental Engineering Department, Bandung Institute Technology. Model running on Computation Laboratory Marine Sciences Department, Diponegoro University Semarang. Model simulation running on 15 days from April 9th until 24th 2008 related to the field survey. Descriptive method was used in this research, and SMS (Surface Water Modelling System) software used for making the model. Materials used were primary and secondary data. Primary data that is current, tides, bottom sediment and suspended sediment. Secondary data that is Porong river flow, Juanda wind data and bathymetric map. Based on simulation current speed in research location on Spring condition up to 0.270 m/s and current speed on Neap condition up to 0.080 m/s. Which direction on ebb to flood condition moved from east to west then to north, on flood to ebb condition moved from north to south then to east. Simulation result of Suspended sediment consentration spreading on 15 days showed that suspended sediment consentration was 3.803 until 240.448 mg/l which dominate direction moved to south east. Key words : suspended sediment, current, Porong estuary.

Pola Distribusi Klorofil-a dan Total Suspended Solid (TSS) di Teluk Toli Toli, Sulawesi Anindya Wirasatriya
Buletin Oseanografi Marina Vol 1, No 1 (2011): Buletin Oseanografi Marina
Publisher : Universitas Diponegoro

Abstract The aim of this research is to investigate the distribution pattern of chlorophyl a and total suspended solid (TSS) at Toli toli Bay. The research was conducted in May 2009 by using research vessel Baruna Jaya VIII at 11 sampling stations in Toli toli Bay. Based on the distribution patterns of chlorophyll a, Toli toli Bay is categorized in good condition. Chlorophyll a concentrations were about 2.43 mg/m3 and ranged from 0.6-6.14 mg/m3. Horizontally, high chlorophyll a distribution were found in areas near estuary and reduced toward the open ocean. Vertically, the maximum chlorophyll a concentration was found in 25 m depth and then decreased until 100 m depth. TSS concentrations were about 7.65 mg/l and ranged from 5.8-10.4 mg/l which is still under the quality standard of the Ministry of Environment. KeyWords : Chlorophyl a, Total suspended solid (TSS), Toli toil, Sulawesi

UPTAKE Pb LIMBAH CAIR INDUSTRI KERTAS OLEH LELE DUMBO (Clarias gariepenus) DAN ECENG GONDOK (Eichornia crassipes) Sri Yulina Wulandari
Buletin Oseanografi Marina Vol 1, No 1 (2011): Buletin Oseanografi Marina
Publisher : Universitas Diponegoro

Abstract The aims of this research was to study accumulation rate of Pb in both King Cat Fishes (Clarias gariepenus) and waterhyacinth (Eichornia crassipes), so was decreasing rate of Pb in waste water of pulp and paper industry. This research was experimental laboratorism. Eighteenth glass wessel were filled 10 litres the mixture of pulp and paper waste water and fresh water whereas 40% volume of pulp and paper waste water. The result sowed that Pb heavy metal content in both King Cat Fishes and waterhyacinths increased by time treatment. Pb content in head of fishes was greater by aeration than that in body of fishes without aeration. Pb content in waterhyacinths was greater by aeration than that without aeration. Pb content in waste water decreased by time treatment. The decreasing rate of Pb in waste water was greater by aeratin than that without aeration. Key words: Uptake Pb, waste water, pulp and paper industry, King Cat Fish, waterhyacinth

Analisis Perubahan Garis Pantai selama 10 Tahun Menggunakan CEDAS (Coastal Engineering Design and Analisys System) di Perairan Teluk Awur pada Skenario Penambahan Bangunan Pelindung Pantai Hariyadi Hariyadi
Buletin Oseanografi Marina Vol 1, No 1 (2011): Buletin Oseanografi Marina
Publisher : Universitas Diponegoro

Abstract Live Environment Mining and Energy Duty Kabupaten Jepara (2006) said Teluk Awur shore is potential area occurred erosion. Reliable attempted to use preventing the problem is protecting with making hard struktur, therefore investigated with modeling shoreline changed use protection structure added three scenarios. The purpose of this study to known shoreline changed and the smallest effect in the scenario of protection structure added. For the efficiency time and price, so that prediction and simulation is done with using numeric model method with GENESIS (GENEralized model for SImulating Shoreline change). GENESIS is the one of subprogram in the NEMOS(Nearshore Evolution MOdeling System) at the CEDAS (Coastal Engineering Design and Analisys System) software. Long of the model simulation area is 8720 meters. Model simulation use three scenarios are Detached Breakwater, Non Diffracting Groin, and Detached Breakwater and combination of Non Diffracting Groin. and Detached Breakwater. Shoreline changed can consider based on simulation result is sediment transport volume, erosion wide, sedimentation and long shoreline changed. Based on result simulation, shoreline changed in existing condition is the most if compared with the other scenario with values-93.5942 meters, the smallest values occurred at the combination scenario from Detached Breakwater and Non Diffracting Groin with -54.3157 meters. This result give the information that protection structure required to decrease shoreline changed occur. Key Words: Shoreline Change, CEDAS, NEMOS, GENESIS, Teluk Awur, Detached Breakwater, Non Diffracting Groin

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