Anna Ida Sunaryo Purwiyanto and Fitri Agustriani
ILMU KELAUTAN Juni 2014 Vol. 19(2):81-87
http://ejournal.undip.ac.id/index.php/ijms
Abstract
Sembilang National Park is one of the national parks which is located in South Sumatera and became the largest mangrove area in western Indonesia. Most of the mangroves area in this national park has been experiencing conversion to be tidal ponds. This has resulted in concerns on mangrove forest destruction in the park. One of the efforts to maintain mangroves area is by applying silvofishery system, which is mangrove planting and cultivation of milkfish in ponds performed simultaneously. This study aims to investigate the water quality and nutrient condition in the ponds in the area of silvofishery restoration at Sembilang National Park. The study was conducted by purposive sampling method in the silvofishery ponds, non-silvofishery ponds, and river water bodies throughout the park. Measurements conducted on water quality parameters and nutrient content, especially nitrate and phosphate. The results showed that the presence of mangrove in the ponds area is able to improve the oxygen content and pH of pond water. Mangroves also demonstrated the ability to bind nitrates which indirectly will prevent the pond water from pollution. However, the high phosphorus content showed that young mangrove plants in the restoration area have not been able to significantly bind the of this nutrient. The results of this study showed that mangrove forests are very beneficial for aquaculture activities because of its ability to absorb nutrient pollutants.
Keywords: silvofishery; ponds; nitrate; phosphate; Sembilang National Park
Science
The Knowledge
Senin, 15 Desember 2014
Jumat, 22 November 2013
Potensi Akumulasi Logam Cu di Perairan Timur Muara Sungai Banyuasin, Sumatera Selatan
Anna
Ida Sunaryo Purwiyanto dan Susi Lestari
Seminar Nasional Kelautan & Perikanan
“Pengembangan IPTEK Kelautan & Perikanan dalam
Percepatan Pembangunan Ekonomi di Kawasan Timur Indonesia”
Kupang, 12 Oktober 2013
ABSTRAK
Wilayah
perairan timur Muara Sungai Banyuasin merupakan salah satu pusat penangkapan
sumberdaya perikanan di Sumatera Selatan, tetapi muara ini juga menjadi salah
satu muara sungai terbesar yang tidak luput dari aktifitas transportasi dan
buangan limbah industri dan domestik. Tujuan penelitian ini untuk mengetahui
tingkat konsentrasi logam Cu pada perairan timur Muara Sungai Banyuasin,
terutama pada bagian dasar perairan, sedimen, dan biota bentik (yaitu kepiting)
yang hidup di muara ini dan potensi terjadinya bioakumulasi Cu pada kepiting.
Penelitian ini dilakukan pada bulan Oktober 2012, dengan titik sampling
mencakup bagian luar muara (stasiun 1), bagian tengah muara (stasiun 2) dan
bagian dalam muara (stasiun 3). Hasil penelitian menunjukkan bahwa kandungan
logam Cu tertinggi pada dasar perairan adalah pada stasiun 1 (0,174 ppm) dan
terendah pada stasiun 2 (0,003 ppm). Pada bagian sedimen, Cu tertinggi terdapat
di stasiun 3 (0,1113 ppm) dan terendah pada stasiun 1 (0,0387 ppm). Sedangkan
pada daging kepiting, Cu tertinggi ditemukan pada kepiting di stasiun 1 (0,3667
ppm) dan terendah pada kepiting stasiun 2 (0,2450 ppm). Hasil analisa regresi
menunjukkan bahwa kandungan Cu pada daging kepiting memiliki hubungan keeratan
lebih tinggi terhadap konsentrasi Cu pada dasar perairan (R2 = 0,981) dibandingkan terhadap Cu pada
sedimen (R2 = 0,395).
Perhitungan BCF menunjukkan adanya kemampuan akumulasi logam Cu pada daging
kepiting namun dengan kategori akumulasi rendah.
Kata kunci : tembaga (Cu), kepiting, BCF,
perairan timur Muara Sungai Banyuasin
ABSTRACT
East coast River estuary of Banyuasin is one of thecapture fishery
resources in South Sumatra province, but this estuary also become one of the
largest estuaries which has impact from transport activity, domestic waste and
industrial waste. The purpose of this research is to find out the level of
concentration of Cu in the estuary of the east coast River Banyuasin,
especially in the bottom waters, sediments, and benthic biota (i.e crab) who
live in this estuary dan the accumulation potention of Cu in crabs. The
research was conducted in October 2012, with tree sampling points outside the
estuary (station 1), the middle of the estuary (station 2) and the inside of
the estuary (station 3). The results showed that the highest Cu content in the
waters is at station 1 (0.174 ppm) and the lowest at station 2 (0.003 ppm). In
the sediments, the highest Cu in station 3 (0.1113 ppm) and the lowest at
station 1 (0.0387 ppm). While in the crab meat, crab found in the highest Cu at
station 1 (0.3667 ppm) and the lowest at station 2 crab (0.2450 ppm). Results of
regression analysis showed that the Cu content in the crab meat has a higher
relationship closeness of Cu concentration in the waters (R2 = 0.981) compared
to Cu in sediments (R2 = 0.395). BCF calculation shows the ability of Cu accumulation in the crab meat,
but with a low accumulation category.
Key words : copper (Cu), mud crab, BCF, east side of River Banyuasin Estuary
Selasa, 30 April 2013
Korelasi Konsetrasi Logam Berat Cu Pada Daun Avicennia sp Terhadap Gonad Scylla serrata di Tanjung Api-Api, Sumatera Selatan
Anna Ida Sunaryo Purwiyanto
Jurnal Penelitian Sains 15 (4) : 15432-160 -
15432-163
Intisari: Logam berat Cu
merupakan salah satu jenis methalothionein esensial yang sangat mempengaruhi
aktifitas reproduksi organisme dan akan bersifat toksik bila konsentrasinya melebihi ambang batas. Secara alami, logam Cu tersebar di
berbagai ekosistem, baik ekosistem perairan maupun sedimen, salah satunya
adalah ekosistem mangrove. Ekosistem mangrove merupakan salah satu perangkap alami Cu yang akumulasinya akan mempengaruhi
biota yang berasosiasi dengan ekosistem ini, termasuk juga kepiting yang
memanfaatkan daun mangrove sebagai pakan alami. Organ pada Scylla serrata yang paling terpengaruh adalah gonad, sehingga adanya kandungan Cu pada daun mangrove akan mengakibatkan
gonad juga terkontaminasi. Hubungan akumulasi pada mangrove tersebut diduga memiliki korelasi positif dengan akumulasi pada organ reproduksi kepiting. Oleh karena itu, penelitian ini bertujuan untuk menganalisa korelasi
konsentrasi Cu pada daun Avicennia sp dan Cu yang terdapat dalam gonad kepiting. Pengukuran konsentrasi Cu
dilakukan dengan menggunakan metode AAS-flame. Hasil penelitian menunjukkan
bahwa kandungan logam Cu pada gonad jantan (0,0064 ppm) ternyata lebih tinggi
dibandingkan gonad betina (0,0059 ppm) dan konsentrasi Cu tersebut memiliki
kaitan yang cukup tinggi terhadap konsentrasi Cu yang terkandung dalam daun
mangrove api-api (0,00075-0,0022 ppm).
Kata Kunci: Cu, gonad, Scylla serrata, daun Avicennia sp
Abstract: Heavy metals Cu is one of the essential methalothionein which influence reproductive activity of organisms and will be toxic when its concentration exceeds a threshold. Naturally, Cu spread in various ecosystems, both aquatic and sediment ecosystems, one of example is a mangrove ecosystem. Mangrove ecosystem is one of the natural trap which accumulate Cu and affecting associated organism, including mangrove crabs that use leaves as a natural food. One of the most affected organ of Scylla serrata is the gonad, so that the Cu content in the leaves of mangroves will result contaminated in gonads. These relationship suspected has a positive correlation. Therefore, this study aims to determine the correlation between Cu which contains in the leaves of mangroves and Cu contained in the gonad crab. Cu concentration measurements performed using AAS-flame method. The results showed that Cu metal content in the male gonads (0,0064 ppm) were higher than female gonads (0,0059 ppm) and those Cu content has a high correlation to the concentration of Cu contained in mangrove leaf ((0,00075-0,0022 ppm).
Keywords: Cu, gonad, Scylla serrata, Avicennia sp leaves
Email: anna.ida3@gmail.com
Senin, 22 April 2013
Principles of Ion exchange chromatography
Ion exchange atau bahasa indo nya pertukaran ion sering terjadi, baik di perairan maupun di sedimen. Proses ini mengakibatkan mineral yang terdapat di perairan atau sedimen menjadi bervariasi, bahkan bila pertukaran ion yang terjadi cukup tinggi, tidak menutup kemungkinan dominasi mineral pada suatu lingkungan juga akan mengalami perubahan.
Semoga video ini membantu memahami prinsip terjadinya ion exchange...
Semoga video ini membantu memahami prinsip terjadinya ion exchange...
Kamis, 18 April 2013
Vertical Distribution and Flux of Nutrients in the Sediments of the Mangrove Reclamation Region of Muara Angke Kapuk – Jakarta
Anna Ida Sunaryo Purwiyanto1,
Tri Prartono2), Alan Frendy Koropitan2)
1*). Program Studi Ilmu Kelautan, FMIPA – Universitas Sriwijaya, Palembang,
Sumatera Selatan 30662, Indonesia
2). Departemen Ilmu Kelautan, FPIK – IPB, Kampus IPB Darmaga Bogor 16680,
Indonesia
ABSTRACT
The reclaimed mangrove estuary in Muara Angke Kapuk is a reclaimed area that has
not evaded the impacted of pollution and waste in the areas surrounding
Cengkareng, Jakarta. This is apparent from the fact that almost all sediments
under the mangrove trees are buried
under heaps of plastic trash. However, the reclaimed region still has
variety of organism, which indicating that the region still has an internal carrying
capacity, especially nutrients from sediment. The purpose of this research was to examine the condition
of sediment nutrients in this mangrove reclamation region. The research was conducted by taking
water samples using a modification of the stratified cup at a sediment depth of
0-15 cm with depth intervals of 2.5 cm, and taking sediment samples using the sediment ring. Pore water samples
were measured for dissolved oxygen (DO) and concentrations of ammonia, nitrite,
nitrate, and phosphate. Sediment samples were used to obtain porosity values.
The data obtained is used to make vertical
concentration profiles and analysis of vertical nutrient flux. Vertical
nutrient flux analysis was performed with the aid of QUAL2K software version
2.11. The results showed different vertical distributions and flux of
nutrients, where influx for ammonia and phosphate and an increase in
line with increasing sediment depth, while nitrate efflux and a decreased concentration. The flux calculation of nitrite as transitory nutrient was not done, but the concentration
decreased after a depth of 2.5 cm. This indicates that the high contamination
on the surface does not prevent the natural chemical processes so the reclaimed region can still
provide nutritional support for its organism.
Keywords : porewater, nutrient, fluxes,
sediment, Muara Angke Kapuk
Makara Journal , 2012, 16(3) : 197-202
http://journal.ui.ac.id/index.php/science/article/view/1482/1280Daya Serap Akar dan Daun Mangrove Terhadap Logam Tembaga (Cu) di Tanjung Api-Api, Sumatera Selatan
Maspari Journal, 2013, 5 (1), 1-5
ABSTRAK
Perairan Tanjung Api-Api merupakan suatu ekosistem penting di
wilayah Sumatera Selatan. Perairannya yang menjadi jalur sibuk berbagai jenis
kapal dan aktifitas perikanan, serta keberadaan hutan mangrove yang masih tebal
menjadikan perairan ini sebagai ekosistem yang unik. Aktifitas yang dilakukan
di perairan Tanjung Api-Api ini tentu saja akan menghasilkan limbah dan
mempengaruhi kondisi mangrove yang terletak tepat di sepanjang perairan. Salah
satu limbah yang cukup berbahaya bagi ekosistem mangrove adalah tembaga (Cu)
mengingat peran Cu bagi metabolisme tumbuhan yang akan menyebabkan kematian
bila jumlahnya berlebih . Oleh karena itu, penelitian ini difokuskan pada
fungsi mangrove dalam menghadapi limbah Cu dengan cara menyerap dan
mengakumulasikannya dalam jaringan tumbuhan (akar dan daun) mangrove, khususnya
Avicennia dan Rhizopora. Hasil penelitian menunjukkan bahwa pada akar mangrove
mengakumulasi Cu lebih banyak. Rata-rata kandungan logam Cu pada akar dan daun
Avicennia adalah 0,0035 ppm dan 0,0013 ppm, sedangkan pada akar dan daun
Rhizopora adalah 0,0028 ppm dan 0,0007 ppm. Akumulasi tersebut belum melebihi
ambang batas karena mangrove dapat menyerap Cu hingga 15 ppm. Akumulasi Cu pada
Avicennia yang lebih tinggi dibandingkan Rhizopora menunjukkan bahwa zona
terdepan hutan mangrove mengakumulasi logam berat lebih banyak dibandingkan
zona mangrove di belakangnya.
Kata kunci : tembaga (Cu), akar dan daun mangrove, Tanjung Api-api
Full text
http://jurnalmaspari.blogspot.com/2013/03/volume-5-nomor-1-januari-2013.html
Full text
http://jurnalmaspari.blogspot.com/2013/03/volume-5-nomor-1-januari-2013.html
Rabu, 02 Januari 2013
Total Organic Carbon Analysis
Step 1 for TOC water analysis equipment
Step 2 for TOC water analysis equipment
Step 2 for TOC water analysis equipment
Step 3 for TOC water analysis
Analysis TOC in sediment
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