Harpasis S. Sanusi
Faculty of Fisheries and Marine Sciences, Bogor Agricultural University, Bogor

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KARAKTERISTIK KIMIAWI DAN KESUBURAN PERAIRAN TELUK PELABUHAN RATU PADA MUSIM BARAT DAN TIMUR Sanusi, Harpasis S.
Jurnal Ilmu-Ilmu Perairan dan Perikanan Indonesia Vol 11, No 2 (2004): Desember 2004
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (71.575 KB)

Abstract

Hasil penelitian pada periode musim barat (Desember, 1993) maupun timur (Juli, 1994) memperlihatkan kadar zat hara (NO3-N, NH4-N, PO4-P) yang relatif rendah bagi kebutuhan optimum proses fotosintesis fitoplankton. Unsur hara SiO2 terlarut pada musim barat, baik di perairan permukaan (37.56 - 151.68 mg SiO2/l) maupun pada kedalaman 25 m (3.97 - 39.19 mg SiO2/l) jauh berada di atas rata-rata normal 2.0 mg SiO2/l. Lain halnya pada musim timur, kadar SiO2 tercatat rendah yaitu 0.135 - 0.995 mg SiO2/l (perairan permukaan) dan 0.132 - 0.218 mg SiO2/l (kedalaman 25 m). Keberadaan unsur hara di perairan teluk selain dipengaruhi aktivitas fotosintesis juga dipengaruhi masukan dari sistem sungai yang bermuara di teluk (elemen alogenik) antara lain berupa pengaruh tingginya padatan tersuspensi (79 - 660 mg/l) yang terbawa sungai terutama pada musim barat. Penyebaran vertikal (hingga kedalaman 25 m) unsur hara pada kedua musim memperlihatkan kecenderungan menurun, terutama silikat, fosfat dan nitrat pada musim barat. Kadar unsurhara yang relatif lebih rendah pada kedalaman 25 m diikuti oleh kelimpahan organisme plankton yang lebih rendah dibandingkan dengan yang terdapat di perairan permukaan. Pada musim barat, produktivitas atau kesuburan perairan teluk, dinilai dari kelimpahan organisme plankton dan bentos, tergolong rendah sampai sedang. Berbeda dengan musim timur, produktivitas perairannya relatif tinggi yang dicirikan oleh kelimpahan plankton yang tinggi.Kata kunci: Musim barat, musim timur, unsur hara, debit sungai, elemen alogenik, padatan tersuspensi.
KETERKA1TAN STRUKTUR KOMUNITAS MEIOFAUNA DENGAN KERAPATAN LAMUN DAN PARAMETER LINGKUNGAN DI SELAT DOMPAK, KEPULALIAN RIAU Soedharma, Dedi; Wardiatno, Yusli; Sanusi, Harpasis S.
Jurnal Perikanan Dan kelautan Vol 12, No 01 (2007)
Publisher : Jurnal Perikanan Dan kelautan

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Abstract

A study on the relationship between meiofauna community structure with seagrassdensity and environmental parameters has been carried out in the Dompak Straitwaters, Riau Archipelago. This study were investigated on four different seasonsthroughout a year, from May 2005 to April 2006. Three sampling site, i.e.., Al, A2and A3 were chosen to represent research sites. The sediment samples were tekenby PVC cores, in which six layers were separated (i.e. 0-5 cm, 5-10 cm, 10-15 cm,15-20 cm, 20-25 cm and 25-30 cm). The environmental parameters, such ascurrent velocity, the sediment composition, total organic carbon (TOO, totalorganic matter (TOM), pH and redox potential (Eh), were also observed. The dataon meiofauna, seagrass density and environmental parameters were analyzedstatistically by a regression analyisis. This analysis was run using a SPSS softwareversion 11.5 for Windows. The meiofauna was dominated by Nematodes,Copepods, Polychaetes, Foraniiniferans and Turbellarians. The results areshowing that the meiofaunal community structure would depend on severalconditions such as seagrass density, environmental factors and hydrologicalcharacteristics. The regression results are showing that the meiofaunal communitystructure patterns was significantly correlated with seagrass density and to theenvironmental parameters. Vertically, the meiofaunal community structurepatterns seems to be more affected by TOC and TOM. While the horizontally, itseems to he more affected by current velocity, TOM and pH.
The Efficacy of Bioaugmentation on Remediating Oil Contaminated Sandy Beach Using Mesocosm Approach (Efikasi Tehnik Bioaugmentasi dalam Memulihkan Pantai Berpasir Tercemar Minyak Menggunakan Pendekatan Mesokosm) Darmayati, Yeti; Sanusi, Harpasis S.; Prartono, Tri; Santosa, Dwi Andreas; Ruyitno, Ruyitno
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 20, No 3 (2015): Jurnal Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (234.012 KB) | DOI: 10.14710/ik.ijms.20.3.143-152

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Bioremediation is basically consists of two approaches, biostimulation and bioaugmentation. The efficacy of bioaugmentation for combating oil pollution in field application is still argued. The purpose of study was to evaluate the efficacy of bioaugmentation and to compare the affectivity of single strain and consortium application in remediating oil polluted sandy beach. Experimental study in a field has been conducted with two (2) treatments and one (1) control in three different plots. The treatmens were introduction of a single strain (Alcanivorax sp TE-9) and a consortium (Alcanivorax sp. TE-9, Pseudomonas balearica st 101 and RCO/B/08-015) cultures into oil contaminated sediment. The experiment in mesocosm approach was taken place in Cilacap coast. Arabian light crude oil was used in the concentration of 100.000 mg.kg-1 sediment. Changes of oil concentration, bacterial density and pore water quality have been monitored periodically for 3 months. The result showed that oil degradation percentage and bacterial growth in both treatments were higher than in control. After 3 months, the percentage of oil degradation experiment in control, single strain and formulated consortium treatments were observed at 60.4%, 74.5% and 73.5%. It proves that bioaugmentation tehnique can enhance significantly oil biodegradation in sandy beach. The applications of bacteria in single or consortium culture give no different impact on their affectivity for bioremediation in Cilacap sandy beach. By data extrapolation it can be predicted that both of treatments able to reduce remediation time from 210 days into 135–137 days. Bioaugmentation can be proposed as a good solution for finalizing oil removing in Cilacap sandy beach when oil spilled occurred in this environment. Keywords: Bioremediation, bioaugmentation, oil, sandy beach, Alcanivorax, mesocosm, Cilacap   Bioremediasi pada dasarnya terdiri dari dua pendekatan yaitu biostimulasi dan bioaugmentasi. Teknik bioaugmentasi  dalam menanggulangi pencemaran minyak di lapangan masih diperdebatkan efektivitasnya. Penelitian ini bertujuan untuk mengevaluasi efikasi tehnik bioaugmentasi serta membandingkan efektivitas kultur tunggal dan konsorsium  dalam memulihkan pantai berpasir tercemar minyak. Studi eksperimental di lapangan telah dilakukan dengan menggunakan dua perlakuan dan satu kontrol di tiga plot berbeda, Perlakuannya adalah penambahan bakteri kultur tunggal (Alcanivorax sp TE-9) dan bakteri konsorsium (Alcanivorax sp. TE-9, Pseudomonas balearica st 101 dan RCO/B/08-015) ke dalam sedimen yang tercemar minyak. Eksperimen dengan pendekatan mesokosm dilakukan di pantai Cilacap. Minyak mentah ringan Arabia dengan konsentrasi 100.000 mg.kg-1 sedimen digunakan sebagai bahan cemaran. Perubahan konsentrasi minyak, kepadatan bakteri dan parameter lingkungan diamati secara periodik selama 3 bulan percobaan. Hasil penelitian menunjukkan bahwa persentase degradasi minyak dan densitas bakteri di sedimen perlakuan lebih tinggi daripada kontrolnya. Setelah 3 bulan eksperimen, persentase degradasi minyak pada kontrol, perlakuan kultur tunggal dan konsorsium masing-masing teramati 60.4%, 74.5% and 73.5%. Hal ini membuktikan bahwa tehnik bioaugmentasi secara signifikan mampu meningkatkan biodegradasi minyak di pantai berpasir. Pemberian mikroba dalam bentuk kultur tunggal ataupun konsorsium mempunyai efektivitas yang tidak berbeda untuk proses bioremediasi di pantai berpasir Cilacap.  Dengan ekstrapolasi data dapat diduga bahwa kedua perlakuan bioaugmentasi ini mampu mempercepat waktu pemulihan lingkungan dari 210 hari ke 135-137 hari. Bioaugmentasi dapat diusulkan sebagai solusi yang cukup baik untuk menghilangkan minyak pada tahap akhir pembersihan pantai berpasir Cilacap, jika terjadi tumpahan minyak di lingkungan ini. Kata kunci: single strain, consortium, bioaugmentation, oil, bioremediation, sandy beach,  Alcanivorax, Cilacap
Toxicity of Ammonia to Benthic Amphipod Grandidierella bonnieroides: Potential as Confounding Factor in Sediment Bioasssy (Toksisitas ammonia terhadap amphipod bentik Grandidierella bonnieroides : Potensi sebagai faktor pengganggu dalam bioassay sedimen) Hindarti, Dwi; Arifin, Zainal; Prartono, Tri; Sanusi, Harpasis S.
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 20, No 4 (2015): Jurnal Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (324.696 KB) | DOI: 10.14710/ik.ijms.20.4.215-222

Abstract

Toxicity of ammonia was evaluated using amphipod Grandidierella bonnieroides to describe its role as confounding factor in sediment quality assessment. Ammonia is a toxic compound that is found naturally in seawater and sediment. High ammonia content in the pore water sediment can be potentially toxic to benthic biota, so that it will interfere with the results of sediment toxicity tests. Laboratory production amphipod was used in this ammonia toxicity test. Water-only toxicity tests was conducted to produce new toxicity data of ammonia, and is expressed as LC50, LOEC and NOEC for benthic amphipod G.bonnieroides. The study resulted the 96-h median lethal concentration (LC50) of ammonia for G. bonnioerides was 65.5 mg.L-1. While the value LOEC (low observed effect concentration) is 56 mg.L-1 and NOEC value (no observed effect concentration) was 32 mg.L-1 . This shows that ammonia has a relatively low toxicity to amphipod and ammonia does not act as a confounding factor in the sediment toxicity test, because the ammonia content in sediment does not pose any significant effect on amphipod survival. It can be concluded that the amphipod has a potential useful as test organism in sediment bioassay for assessing the quality of marine sediment. Moreover, the high dependence of total ammonia toxicity indicates that it is necessary to measure the total ammonia and pH of the medium when testing environmental samples. Keywords: ammonia, amphipod, toxicity, confounding factor, bioasssay Toksisitas ammonia dievaluasi menggunakan amphipod Grandidierella bonnieroides untuk menggambarkan perannya sebagai faktor pengganggu dalam penilaian kualitas sedimen. Amonia merupakan senyawa beracun yang ditemukan secara alami dalam air laut dan sedimen. Kandungan amonia yang tinggi dalam air pori sedimen dapat berpotensi racun bagi biota bentik, sehingga akan mengganggu hasil uji toksisitas sedimen. Amphipod hasil produksi laboratorium digunakan dalam uji amonia. Uji toksisitas dilakukan untuk menghasilkan data toksisitas baru ammonia, dan dinyatakan sebagai LC50, LOEC dan NOEC untuk G.bonnieroides amphipod bentik. Studi ini menghasilkan nilai konsentrasi median letal 96-jam (LC50) ammonia untuk G. bonnioerides adalah 65.5 mg.L-1. Sedangkan nilai LOEC (konsentrasi terendah yang menyebabkan dampak secara signifikan) adalah 56 mg.L-1 dan nilai NOEC (konsentrasi tertinggi yang tidah menyebabkan dampak secara signifikan) 32 mg.L-1. Hal ini menunjukkan bahwa ammonia memiliki toksisitas relatif rendah untuk amphipod dan ammonia tidak bertindak sebagai pengganggu dalam untuk uji toksisitas sedimen, karena kandungan ammonia dalam sedimen tidak menimbulkan pengaruh yang nyata pada survival amphipod. Dapat disimpulkan bahwa amphipod memiliki potensi sebagai biota uji dalam sedimen bioassay untuk menilai kualitas sedimen laut. Selain itu, terdapat ketergantungan yang tinggi toksisitas amoniak terhadap pH, sehingga perlu untuk memantau total amonia dan pH saat melakukan pengujian sampel lingkungan. Kata kunci : ammonia, amphipod, toksisitas, faktor pengganggu, bioassay
Pengaruh Suhu dan Salinitas Terhadap Respon Fisiologi Larva Tiram Mutiara Pinctada maxima (Jameson) Winanto, Tjahjo; Soedharma, Dedi; Affandi, Ridwan; Sanusi, Harpasis S.
JURNAL BIOLOGI INDONESIA Vol 6, No 1 (2009): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (247.755 KB) | DOI: 10.14203/jbi.v6i1.3171

Abstract

ABSTRACTPENDAHULUANPinctada maxima adalah spesiesakuakultur yang mempunyai nilaiekonomi tinggi (Taylor et al. 1997). Dipasaran internasional, mutiara yangdiproduksi sering kali disebut dengannama “South Sea Pearl”. Indonesiatermasuk salah satu negara penghasilmutiara (South Sea Pearl) yang cukupdiskenal di pasaran dunia, sebagian besarproduksi South Sea Pearl yang dipasarkanberasal dari hasil budidaya (Anna2006). Produksi mutiara berbasisbudidaya merupakan aktivitas usaha yangmenguntungkan. Perkembangan usahabudidaya mutiara saat ini sudah mengarahpada kegiatan industri yang terintegrasi(Fassler 1995).The Effect of Temperature and Salinity to The Physiological Respons on The Larvae ofPinctada maxima (Jameson). Energy budget is one of the most sensitive tools available forindividual assessing environmental changes like temperature and salinity, and also prerequisitefor individual growth and survival. The aim of this study is to obtained information on energybudget on routine metabolism, in different levels of temperature and salinity, and to know thelevels of optimum temperature and salinity. The research was used randomized block design,with three replications. The result showed that optimal temperature and salinity on P. maximalarvae was 28 oC and 32 – 34 ‰ (BE and BF). Energy budget to routine metabolism increasedwas attributed to increased temperature and salinity due to the optimal, than would be decreasedwhen temperature and salinity increased. The highest of energy budged for routine metabolismat treatment BF. Stage I: energy budged between 6.73 – 7.35 C g wet weight-1 hour-1 (28.18 –30.74 J g wet weight-1 hour-1); Stages II: 5.85 – 5.95 C g wet weight-1 hour-1 (24.48 – 24.90 J g wetweight-1 hour-1); Stages III: 4.73 – 4.80 C g wet weight-1 hour-1 (15.07– 19.58 J g wet weight-1hour-1). The highest survival rate of larvae was by treatment BF, but has not higher significant(P e” 0.05) with BE, stage I: survival rate between 87.75 – 87.92 %; Stage II: 81.91 – 82.39 % andstage III: 76.72 – 77.26 %. The best of relative growth length of larvae by treatment BF and notsignificant (P e” 0.05) with BE, at stage I: 29.78 x 17.93 ?m – 30.57 x 18.43 ?m (AP x DV); stageII: 57.62 x 46.73 ?m – 58.13 x 47.33 ?m and stage III: 80.32 x 69.29 ?m – 80.88 x 69.62 ?m. Thequickest time of plantigrade stages have found by treatment BF (day 19.50) and hasn’tsignificant (P > 0.05) with BE (day 20.85).Keywords: Pinctada maxima, larvae, response; physiology, metabolism.Kata kunci: Pinctada maxima, larvae, respon, fisiology, metabolisme.
KARAKTERISTIK KIMIAWI DAN KESUBURAN PERAIRAN TELUK PELABUHAN RATU PADA MUSIM BARAT DAN TIMUR Sanusi, Harpasis S.
Jurnal Ilmu-Ilmu Perairan dan Perikanan Indonesia Vol 11, No 2 (2004): Desember 2004
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (71.575 KB)

Abstract

Hasil penelitian pada periode musim barat (Desember, 1993) maupun timur (Juli, 1994) memperlihatkan kadar zat hara (NO3-N, NH4-N, PO4-P) yang relatif rendah bagi kebutuhan optimum proses fotosintesis fitoplankton. Unsur hara SiO2 terlarut pada musim barat, baik di perairan permukaan (37.56 - 151.68 mg SiO2/l) maupun pada kedalaman 25 m (3.97 - 39.19 mg SiO2/l) jauh berada di atas rata-rata normal 2.0 mg SiO2/l. Lain halnya pada musim timur, kadar SiO2 tercatat rendah yaitu 0.135 - 0.995 mg SiO2/l (perairan permukaan) dan 0.132 - 0.218 mg SiO2/l (kedalaman 25 m). Keberadaan unsur hara di perairan teluk selain dipengaruhi aktivitas fotosintesis juga dipengaruhi masukan dari sistem sungai yang bermuara di teluk (elemen alogenik) antara lain berupa pengaruh tingginya padatan tersuspensi (79 - 660 mg/l) yang terbawa sungai terutama pada musim barat. Penyebaran vertikal (hingga kedalaman 25 m) unsur hara pada kedua musim memperlihatkan kecenderungan menurun, terutama silikat, fosfat dan nitrat pada musim barat. Kadar unsurhara yang relatif lebih rendah pada kedalaman 25 m diikuti oleh kelimpahan organisme plankton yang lebih rendah dibandingkan dengan yang terdapat di perairan permukaan. Pada musim barat, produktivitas atau kesuburan perairan teluk, dinilai dari kelimpahan organisme plankton dan bentos, tergolong rendah sampai sedang. Berbeda dengan musim timur, produktivitas perairannya relatif tinggi yang dicirikan oleh kelimpahan plankton yang tinggi.Kata kunci: Musim barat, musim timur, unsur hara, debit sungai, elemen alogenik, padatan tersuspensi.
ECONOMIC VALUATION OF MANGROVES FOREST RESOURCES IN REGENCY OF BANGGAI DAN BANGGAI ISLAND CENTRAL SULAWESI Putranto, Sugeng; Zamani, Neviaty P.; Sanusi, Harpasis S.; Riani, Etty; Fahrudin, Achmad
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol 9, No 2 (2017): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (71.575 KB) | DOI: 10.29244/jitkt.v9i2.19298

Abstract

This study aims to determine how big the value of the total economic benefits of mangrove forest by using the concept of economic valuation to calculate the value of the benefits of natural resources which exist in 9 District of Banggai Regency and Banggai Island Regency located in Peleng Strait Costal Area there are: District of Batui Selatan, Batui, Luwuk Timur, Lamala, Masama, Balantak, Bualemo (in Banggai Regency Area) and District of Buko and Buko Selatan (Banggai Island Regency). The research was conducted in August to November 2016, by conducting field observations and interviews directly to the community and local government. Based on the results obtained that indicate the area of mangrove forest ecosystems in Peleng Strait Costal Area with a broad ± 167 ha, have total value of economic benefits amounted Rp 26,591,841,888/year with the largest contributor to the value of benefits is from the value of indirect benefits that is the value of the benefits of mangrove forests as a buffer abrasion or sea water waves is about Rp 16.030.000.000. The total value of economic benefits can be used as a reference or basic comparison for the community and the government in determining the policy management and utilization of existing mangrove forests. Keywords: mangrove forest ecosystems, benefits value, economicvaluation
DISTRIBUTION AND BEHAVIOUR OF DISSOLVED AND PARTICULATE Pb AND Zn IN JENEBERANG ESTUARY, MAKASSAR Najamuddin, .; Prartono, Tri; Sanusi, Harpasis s.; Nurjaya, I Wayan
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol 8, No 1 (2016): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (71.575 KB) | DOI: 10.29244/jitkt.v8i1.12494

Abstract

ABSTRACTDissolved and particulate heavy metals play a role in geochemical cycle as an agent in adsorption-desorption, deposition-resuspension, and dispersion mechanisms of heavy metals in water environment. The objectives of this research were to determine the distribution and behaviour of dissolved and particulate heavy metals Pb and Zn in different seasons (west and east seasons) at Jeneberang Estuary of Makassar. Concentrations of Pb and Zn were analysed using Atomic Adsorption Spectrophotometry based on APHA, AWWA, WEF (2005). The concentration of dissolved Pb in the riverine, estuarine, and marine waters were in the range (average) of <0.002 mg/L (below detectable limit), 0.013-0.144 mg/L (0.047 mg/L), 0.016-0.198 mg/L (0.079 mg/L); and the concen-tration of dissolved Zn were in the range (average) of <0.002 mg/L (below detectable limit), <0.002-0.014 mg/L (0.005 mg/L), <0.002-0.083 mg/L (0.017 mg/L). Meanwhile, the concentration of parti-culate Pb were in the range (average) of 1.807-2.569 mg kg-1 (2.215 mg kg-1), 0.521-1.272 mg kg-1 (0.911 mg kg-1), 0.465-2.182 mg kg-1 (1.033 mg kg-1), and the concentration of particulate Zn were in the range (average) of 19.151-90.942 mg kg-1 (51.710 mg kg-1), 16.999-63.059 mg kg-1 (31.694 mg   kg-1), 19.439-80.283 mg kg-1 (45.554 mg kg-1) in the riverine, estuarine and marine waters, respecti-vely. Behaviour of dissolved heavy metals Pb and Zn showed that the concentrations tended to increase (desorption) along the gradient of high salinity as a  result of the higher heavy metals input from coastal region than that riverine regimes.Keywords: distribution, behaviour, dissolved, particulate, heavy metal, Jeneberang Estuary
ANALISYS AND MAPPING OF ENVIRONMENTAL SENSITIVITY INDEX IN BANGGAI REGENCY AND BANGGAI ISLANDS REGENCY, CENTRAL SULAWESI Putranto, Sugeng; Zamani, Neviaty P.; Sanusi, Harpasis S.; Riani, Etty; Fahrudin, Achmad
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol 9, No 1 (2017): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (71.575 KB) | DOI: 10.29244/jitkt.v9i1.17949

Abstract

The Environmental Sensitivity Index (ESI) is a description of the biological, socio-economic and socio-cultural values of a particular coastal and marine area used as a priority response to oil spills, shown on a map by applying spatial analysis using geographic information system technology. The purpose of this research was to analyse mangrove ecosystem area in Banggai and Banggai Islands Regency based on its vulnerability value by analyzing mangrove community structure and socio-economic services for local community. The research was conducted in nine sub-districts, among others: South Batui, Batui, East Luwuk, Lamala, Masama, Balantak, Bualemo (Banggai) and Bulagi and Buko (Banggai Islands). The study was conducted from August to November 2016, with field observations, direct interviews with communities and local government and literature review. The results of spatial analysis of ESI in the coastal areas of Banggai and Banggai Islands are obtained from sensitivity values of medium and sensitive. Areas with moderate sensitivity are Batui, East Luwuk, Masama, Lamala, Balantak and Bualemo sub-districts with grades of 16,78 – 24,35. The value of ESI with sensitive category ranges from 38,24 – 57,54 in Bulagi, Buko and South Batui sub-districts. Keywords: mangrove ecosystem, Environmental Sensitivity Index (ESI)
DAMPAK LOGAM BERAT TERHADAP PERUBAHAN POLIMORFISMEIKAN BADUKANG (Arius sp.) DI ESTUARIA MUARA SUNGAI KAHAYAN DAN KATINGAN KALIMANTAN TENGAH [Impact of heavy metals on polymorphism changes of catfish {Arius sp.) in estuaries of Kahayan and Katingan Rivers, Harteman, Edison; Soedharma, Dedi; Winarto, Adi; Sanusi, Harpasis S.
Jurnal Iktiologi Indonesia Vol 7, No 2 (2007): Desember 2007
Publisher : Masyarakat Iktiologi Indonesia (MII )

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (299.866 KB) | DOI: 10.32491/jii.v7i2.213

Abstract

The purpose of this study was to evaluate impact of metal pollutants: Pb, Cd, and Hg on morphism changes of fish phenotype through concentration and bio-concentration factor (BCF). The study site was located in the river mouths of Kahayan River and Katingan River. Samples collected were water sample and fish sample with malformation on pectoral and caudal hard fin rays. Water sample and fish bone were analysed by Atomic Absorption Spectrophotometer (AAS). The results indicated that lead (Pb) concentration in the estuary and in pectoral and caudal hard fin rays was the highest compared to cadmium (Cd) and mercury (Hg) concentration. It may because Cd and Hg have high affinity to bone tissue of pectoral and caudal hard fin rays than Pb. The highest lead concentration in the water could cause high its metal in bone tissue. If metal in river mouth has not detected or low concentration than standard values of water and biota, it does not mean the water safe to fish and other aquatic organism because heavy metal has been continuously accumulated in tissue. Pb, Cd and Hg have ability to replace Calcium in Phosphate of cell of pectoral and caudal fins. This causes inhibited Ca absorption into bone cell. As consequence, chemical composition on bone changes the bone experiences softening inhibited hardening, and malformation. Bone malformation was caused by changes of bone chemical composition and environmental effects.