Chrisna Adhi Suryono
Jurusan Ilmu Kelautan Universitas Diponegoro
Articles
20
Documents
Pestisida Organoklorin pada Aqifer Dangkal di Wilayah Pesisir Kota Semarang

ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 14, No 3 (2009): Jurnal Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

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Abstract

Studi ini bertujuan untuk menganalisis kondisi fisika-kimiawi dan tingkat kontaminasi pestisida organoklorin dalam aqifer dangkal di wilayah pesisir Kota Semarang.  Sampel airtanah diambil di 10 lokasi di pesisir Semarang, yang mewakili daerah industri, pertanian dan pemukiman.  Hasil penelitian menunjukkan nilai parameter fisika-kimiawi airtanah (pH, suhu, salinitas) mempunyai variasi yang rendah.  Ke 10 sampel yang diamati menunjukan warna, rasa dan bau dalam air sampel.  Hasil rata-rata kandungan heptaclor adalah 0.023-0.055 µg L-1 dan enfrin adalah tidak terdeteksi sampai 0.648 µg L-1.  Hasil perbandingan kandungan pestsida organochlorine dalam aqifer dangkal di pesisir Semarang dengan WHO dan IWQS menunjukan bahwa air pada aqifer di Semarang termasuk terkontaminasi pestisida organochlorine dan membuktikan telah ditemukannya pestisida organochlorine pada aqifer dangkal di wilayah pesisir Kota Semarang.Kata kunci: aqifer dangkal, organochlorin pestisida, wilayah pesisir  The present study was conducted to assess psycho-chemical parameters and the level of organochlorine pesticides contamination in shallow aquifer of Semarang city coastal areas.  Ten samples of groundwater were collected in different sites of Semarang coastal i.e. industrial, agriculture and settlement areas. The results indicated that low variation existed among some physico-chemical parameter (pH, temperature, salinity). In the colors, taste and odor of 10 water sample were also investigated.  Mean values found in positive samples were heptachlor, ranging from 0.023 to 0.055 µg L-1, whereas endrin, ranging from undetected to 0.648 µg L-1. Compare to World Health Organization (WHO) limits and Indonesian Drinking and Domestic Water Quality Standard for Ground Water (IWQS) showed that this study proved the presence of organochlorine pesticides contamination of some shallow aquifer supplies in the coastal areas of Semarang city. Key  words : shallow aquifer, organochlorine pesticides, coastal area

Kandungan Kolesterol Kepiting Bakau (Scylla serrata) Jantan Dan Betina Pada Lokasi Yang Berbeda

Journal of Marine Research Vol 2, No 1 (2013): Journal of Marine Research
Publisher : Journal of Marine Research

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Abstract

Mud crab (Scylla serrata) have potency commercial market in this country and the other country. That thing because mud crab (Scylla serrata) flesh has a delicious taste and high nutrition. People haven’t knowed about cholesterol content in both male or female mud crab (Scylla serrata), whereas the knowledge about cholesterol content is important to consider nutrition intake to keep in good health. This research aim to determine cholesterol content in Scylla serrata by observing male and female crab in Pemalang and Demak. This research used descriptive method and sampling used purposive random sampling method. Determination of sampling position used purposive sampling method. This research has done in October 30th – November 25th 2011. This research used 30 male and 30 female with mean body weigh 60 - 100 g. Analysis of cholesterol content used method by Lieberman–Burchad. Result from this research indicates that S. serrata from Pemalang has cholesterol content more large than S. serrata from Demak, while the male crab from both place has higher cholesterol content than female crab (66,67 mg/100g and 61,67 mg/100g in male crab, and 64,67 mg/100g and 58,33 mg/100g in female crab).

Struktur Komunitas Gastropoda Di Perairan Pesisir Kecamatan Genuk Kota Semarang

Journal of Marine Research Vol 1, No 1 (2012): Journal of Marine Research
Publisher : Journal of Marine Research

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Abstract

Gastropods have an important role in aquatic environments, especially in food and energy cycles. This aim of study determine the abundance and structure community of gastropods and physical parameters of the water, the type of substrate sediments and organic matter content in sediments that serve to optimize the utilization analysis and estimation of the abundance of gastropods conditions contained in the Genuk Coastal Waters, the city of Semarang. The method used in this research descriptive method by means of sampling stations gastropods includes 6 points. The study results for all sampling points had 260 individuals, that comprise of 10 species, namely Turricula javana, Thaislacera, Murex trapa, Bufonaria rana linnaeus, Nassarius sp, Natica tigrina, Babylonia spirata, Turritella terebra, Pseudoneptunea varicosa, and Conus sp. Sum abundance of species ranging between 0,08 to 2,37 individu/m2. Value index of diversity (H) ranged from 0,000 to 2,026 in the category of low and moderate, and values of uniformity index (e) ranged from 0,000 to 1,461 are included in the high category and the dominance index (c) between 0,255 to 1 in the category of not no dominance (TAD) and no dominance (AD), and for the distribution patterns are dominated by the uniform distribution pattern from the clumped distribution patterns whereas community similarity (S) category was up to the height ranges between 44,44% - 88,89%.

Distribusi dan Kelas Ukuran Panjang Kerang Darah (Anadara granosa) di Perairan Pesisir Kecamatan Genuk, Kota Semarang

Journal of Marine Research Vol 1, No 1 (2012): Journal of Marine Research
Publisher : Journal of Marine Research

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Abstract

Anadara granosa are often called blood cockle because of a brownish red color of meat Anadara. This color is due to hemoglobin in the blood. This research was conducted in coastal waters district Genuk Semarang held in April to June 2009 using descriptive methods. The methods used to determination sampling location was purposive sampling methods. Samples were collected at intervals of once a month. The results that of distribution of A. granosa in Genuk District waters, Semarang. Found eight individuals in April, 30 individuals in May, and 1341 individuals in June. The highest abundance of A. granosa found at station I of 2314 ind / ha. Based on the classes of A. granosa in this area, the shells length variation have approximately uniform size but in this area more dominated by small and medium-sized A. granosa, whereas large shells were found relatively little, indicating that A. granosa in this area was undergoing to grow.

Program Studi Ilmu Kelautan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Dipenogoro

Journal of Marine Research Vol 1, No 2 (2012): Journal of Marine Research
Publisher : Journal of Marine Research

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Abstract

Human activities such as setlement, harbor, industry and fishing and bivalve catching in the shoreline directly or indirectly will force the changing of waters environment quality, for example the changing of physical and chemical quality of waters. Ecological study on benthic such as bivalve has an important rule because its high life tolerances could describe the environmental changing of the waters. In the dynamic environment, biology analysis, in particular biota benthic community analysis, could give clear description on waters area quality. This research intends to discover point of ecology bivalvia and also examined the correlation of waters quality towards bivalve ecological value. The research was held on March 3, March 24 and April 18, 2012 in 8 stations in Eastern Semarang waters. The material research was bivalve. The research indicates that 10 species from 5 families which are Anadara granosa, Anadara gubernaculum, Anadara inaequivalvis, Anadara pilula, Placuna placenta, Pharella javanica, Siliqua winteriana, Mactra violacea, Marcia hiantina and the highest affluence as 1274,4 Ind/Ha² ( station III), Paphia undulate. Average Diversity index (H’) of bivalve was around 0,3-1,2. Average Uniformity Index (e) was around 0,4-0,9. Bivalve distribution pattern in the research location in general indicated grouped distribution (Clumped). The result of cluster analysis divided 3 class areashile the lowest was found in class I. Double linier regression indicated examined waters parameter which were temperature, salinity, depth, organic content and silt depend on the affluence and diversity of bivalve.

Kajian Kondisi Lahan Mangrove di Desa Bedono, Kecamatan Sayung, Kabupaten Demak dan Kelurahan Mangunharjo, Kecamatan Tugu, Kota Semarang

Journal of Marine Research Vol 1, No 2 (2012): Journal of Marine Research
Publisher : Journal of Marine Research

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Abstract

Mangrove ecosystem have an important role in coastal and marine areas. The existence of these ecosystems in the midst of human life provides many benefits. There are several benefits that are directly or indirectly. Utilization of these ecosystems can slowly lead to a problem that needs to be done the proper management efforts for the utilization of mangrove areas can be done in an optimal and sustainable. One of these management is to evaluate mangrove land condition. The results showed that in both study site physical factor of inundation was the most dominant, while chemical factor even though mostly also similar. Land use and land interaction against current and wave were the most influence factor on mangrove land suitability in Bedono, while in Mangunharjo the most dominant was land use. In term of land suitability for mangrove both Bedono and Mangunharjo were fall into sufficient enough category with physical factors more dominant than the chemicals.

Studi Kelimpahan Gastropoda di Bagian Timur Perairan Semarang Periode Maret – April 2012

Journal of Marine Research Vol 2, No 4 (2013) : Journal of Marine Research
Publisher : Journal of Marine Research

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Coastal environment in Eastern part of Semarang is an area that changed in ecological conditions caused by the influence of a variety of human activities such as ports activity, industries, fishing activity, and common people’s residence which causes a decrease in water quality that directly affect the presence, and abundance of gastropods in that area. Purpose of this study is to find out the abundance of gastropods in coastal water environment, Eastern part of Semarang, during periods March to April 2012. This study using the descriptive method, sample survey method, and method used in determining station is purposive sampling method. Sample collected are including water quality measurement, sediments, and samples of biota that is gastropods. Sample of gastropods taken by using the dredge, by width 138cm, height 137cm, and net 500 cm long. Samples of gastropods founded then identified in Marine Biological Laboratory, Marine Faculty, Diponegoro University. Water quality measurement including physical factors, are : depth, water brightness, temperature, substrate, and chemical factors, they are : salinity, acidity (pH), dissolved oxygen (DO), and organic content. There are 14 spesies founded, they are : Architectonica perdix, Busycon canaliculatum, Conus tenuistriatus, Engina zonalis, Fasciolaria salma, Murex trapa, Nassarius javanus, N. pullus, Natica lineata, N. tigrina, Pseudoeptunea varicose, Terebralia palustris, Trigonostoma scalariformis, and Turricula javana. Highest abundance is on station II (183,67), and the lowest abundance is station VII (2,67).

STUDI KANDUNGAN LOGAM BERAT Pb DAN Cd DALAM SEDIMEN DI PERAIRAN PESISIR KECAMATAN GENUK SEMARANG

Journal of Marine Research Vol 3, No 1 (2014) : Journal of Marine Research
Publisher : Journal of Marine Research

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Heavy metals; lead (Pb) and cadmium (Cd) are commonly used in the industrial sectors, including the industryof batteries, pesticides, detergents, paints, and chemical factories. Heavy metals which get into the water can damage the ecosystems and organisms in it. The aim of this study is to determine the contents of heavy metals Pb and Cd in sediments at Genuk coast waters district, Semarang. This research was conducted on October 7, November12, and December112012 at Genuk Coast Water District, Semarang. The sampling was conducted in 8 stationpoints. The method used for the analysis of heavy metals wasAtomic Absorption Spectrophotometry (AAS), while the sediment fraction was analyzed using wet sieving method in Soil Mechanics Laboratory of the Faculty of Engineering, Diponegoro University. Based on the research result, the contents of heavy metals Pb was higher compared with Cd, i.e heavy metal Pb ranging from 13,99 ppm - 38,11 ppm and heavy metal Cdranging from 0,17 ppm – 0,25 ppm, while the percentage of sediment fraction in all research stations dominated by silt fraction. The resultof correlation test has showed a positive correlation between heavy metals Pb and Cd to the grain size and organic matter in the amount of 11.4% and 49.6%.

DISTRIBUSI KELAS UKURAN KERANG SIMPING PINGGIR (Placuna Placenta, Linn, 1758 :Pelecypoda) DI PERAIRAN GENUK SEMARANG

Journal of Marine Research Vol 3, No 1 (2014) : Journal of Marine Research
Publisher : Journal of Marine Research

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Placuna placenta are often called scallop shells included in the phylum mollusca, Pelecypoda Class, and Family Placunidae. The research was held on October until December 2012. The research was conducted at the research 8 stations. The materials have been used are scallop shells, sea water, and the substrate of water base. The method used in this research is descriptive method and purposive sampling method as the method in determining the location of doing research with interval of 1 month. The result of this research is that the distribution of scallop shells in Genuk waters found in October was 63 ind / ha, in November 582 Ind / ha and in December 155 ind/ha. The Results of the linear regression about relationship length and weight of the Scallop shells in the period October- December included on negative allometric because the regression coefficient (b) less than 3. The abundance of scallop shells on research site influenced waters condition quality and the organic materials in sediment.

Akumulasi Logam Berat Timbal (Pb) dan Pengaruhnya Terhadap Histologi Akar Mangrove Avicennia marina (Forssk). Vierh. di Perairan Mangunharjo Semarang

Journal of Marine Research Vol 3, No 1 (2014) : Journal of Marine Research
Publisher : Journal of Marine Research

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Mangunharjo areas water is an area of coastal waters and the sea which close to the settlement industry and community activities. Where feared result of industrial waste were dumped around it that cause pollution. One form of pollution is the waste produced in the form of lead (Pb) heavy metals is a heavy metal element that can not be broken down by natural processes. The existence of Pb in nature have an impact on coastal vegetation is mangrove. Mangroves are coastal ecosystems which have an important role in estuarine areas. Other mangrove function is to absorb organic and non-organic materials. The purpose of this research was to study the accumulation of lead (Pb) heavy metals in Avicennia marina mangrove roots and influences the type of heavy metal accumulation of lead (Pb) to root tissue in Avicennia marina waters Mangunharjo. This research was conducted with descriptive analytic method. The results showed the amount of heavy metals on the roots of Avicennia marina Pb higher than the Pb content of heavy metals in sediment and water indicating that these plants are able to accumulate heavy metals in the roots to absorb these elements in sediments and water. Observations cell histology showed no change in root tissues of Avicennia marina.