Dwi Hindarti, Dwi
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A PRELIMINARY STUDY ON THE RESPONSE OF AMPHIPHOD GRANDIDIERELLA SP. TO CONTAMINATED SEDIMENT OF JAKARTA BAY Hindarti, Dwi; Puspitasari, Rachma; Arifin, Zainal
Marine Research in Indonesia Vol 35 No 2 (2010)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

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Abstract

A preliminary study on the response of amphipod exposed to contaminated sediments of Jakarta Bay was carried out in October 2009. The objective of the study was to determine the mortality rate of amphipod in response to exposure of contaminated sediments. Seven sediment samples were taken from the bay, i.e, reference site (St. A), and six-contaminated sites (St. B3, B5, C3, C5, D3, and D5). Amphipod (Grandidierella sp.) was collected from reference site. The study showed that average of mortality rate of amphipod ranged between 50.0 and 76.3% at contaminated sediments and 38.3% at reference sediments. There was significant difference on mortality rate of amphipod exposed to sediments of reference site and that of contaminated sites. The mortality of Grandidierella sp. was not strongly correlated with the concentration of Pb and Cu in contaminated sediments. The critical mortality factor of amphipod in this study might be due to variation in grain size of sediments and short period of acclimatization.
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): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

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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
A PRELIMINARY STUDY ON THE RESPONSE OF AMPHIPHOD GRANDIDIERELLA SP. TO CONTAMINATED SEDIMENT OF JAKARTA BAY Hindarti, Dwi; Puspitasari, Rachma; Arifin, Zainal
Marine Research in Indonesia Vol 35, No 2 (2010)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Original Source | Check in Google Scholar | Full PDF (9313.793 KB)

Abstract

A preliminary study on the response of amphipod exposed to contaminated sediments of Jakarta Bay was carried out in October 2009. The objective of the study was to determine the mortality rate of amphipod in response to exposure of contaminated sediments. Seven sediment samples were taken from the bay, i.e, reference site (St. A), and six-contaminated sites (St. B3, B5, C3, C5, D3, and D5). Amphipod (Grandidierella sp.) was collected from reference site. The study showed that average of mortality rate of amphipod ranged between 50.0 and 76.3% at contaminated sediments and 38.3% at reference sediments. There was significant difference on mortality rate of amphipod exposed to sediments of reference site and that of contaminated sites. The mortality of Grandidierella sp. was not strongly correlated with the concentration of Pb and Cu in contaminated sediments. The critical mortality factor of amphipod in this study might be due to variation in grain size of sediments and short period of acclimatization.
EFFECTS OF CYANIDE ON ORNAMENTAL CORAL FISH (CHROMIS VIRIDIS) Arifin, Zainal; Hindarti, Dwi
Marine Research in Indonesia Vol 30 (2006)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

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Abstract

The use of cyanide particularly for fishing has caused concern for its impacts on aquatic marine life. This study was the first attempt to provide information on the effect of cyanide on tropical marine fish in Indonesia and aimed to determine the toxicity of cyanide to coral fish, Chromis viridis. The fish were exposed to 10,18,32,56 and 100 µg 1-1 of cyanide. These five cyanide concentrations were tested for 96- h period of exposure through a static-renewal. Cyanide was found to be very toxic to the fish. The 96-h LC50 of cyanide for juvenile of Chromis viridis was 41.3 µg 1-1. The toxicity of cyanide to C. viridis was 300 times stronger than that of the trace metal cadmium. Compared to milkfish fry (Chanos chanos), C.  viridis was more sensitive to cyanide. It is estimated that at concentration of 32 µg 1-1 cyanide does not show observable effect (NOEC) to C. viridis. Meanwhile the lowest observable effect of cyanide  (LOEC) to the fish is at a concentration of 56 µg 1-1.
ASSESSING CONTAMINATION LEVEL OF JAKARTA BAY NEARSHORE SEDIMENTS USING GREEN MUSSEL (PERNA VIRIDIS) LARVAE Cordova, Muhammad Reza; Purbonegoro, Triyoni; Puspitasari, Rachma; Hindarti, Dwi
Marine Research in Indonesia Vol 41, No 2 (2016)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

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Abstract

Indication of accumulation of heavy metal in sediments will lead to problem for shore and sea ecosystems, biota living in that area and human’s health. The research is aiming to analyse the toxicity of sediment from thirty one locations in Jakarta Bay using Perna Viridis. High amount in larval abnormality found in sediments from the area near mainland and estuary are an indication of high influence of waste from anthropogenic activities from Jakarta mainland. These areas are down stream of Cengkareng Drain, Kamal River, Grogol River and Cakung River, area around sea transportation and North Jakarta Integrated Industrial Area. Sediment of Jakarta Bay, especially coming from estuary area and near to the land area causes an increase in green mussel larval abnormality. This indicates the high of waste influence from anthropogenic activity from Jakarta land area.
SEDIMENT CONTAMINANT AND TOXICITY IN KELABAT BAY, BANGKA BELITUNG PROVINCE Hindarti, Dwi; Arifin, Zainal; Puspitasari, Rachma; Rochyatun, Endang
Marine Research in Indonesia Vol 33, No 2 (2008)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

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Abstract

Sediment of 16 sites in the Kelabat Bay were monitored for metal contamination and toxicity in 2006. Two patterns of metal contaminants distribution in the sediment were observed. Higher concentrations of lead and copper were found in March than those in July, and so was in the inner bay than those observed in the outer bay, while different pattern was observed for cadmium concentration. The highest lead concentrations were observed at site 7 (inner bay) both in March and July. Although elevated levels of cadmium, lead and copper were observed in sediments, they were still in the tolerable level for marine life. Sediment of the bay was also evaluated for its toxicity using marine phytoplankton, Chaetoceros gracilis and sea urchin, Tripneustes gratila. Results of the tests reveal that no toxic effects of sediment to the growth of phytoplankton were observed, but to sea urchin fertilization of the sediment may have toxic effect.
Inhibition Effects of Jakarta Bay Sediments to the Growth of Marine Diatom (Chaetoceros Gracilis) Purbonegoro, Triyoni; Cordova, Muhammad Reza; Puspitasari, Rachma; Hindarti, Dwi
BULLETIN OF THE MARINE GEOLOGY Vol 33, No 2 (2018)
Publisher : Marine Geological Institute of Indonesia

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Abstract

Jakarta Bay coastal ecosystem is known suffered from water pollution and habitat degradation. Solid and fluid waste from households and several industrial areas flow and ended up in the bay. Ecotoxicological studies are needed to assess the effects of pollutant on marine organism, including phytoplankton as the primary producer. Therefore chemical analysis and toxicity test were performed to investigate the impact of Jakarta Bay Sediments to marine diatoms Chaetoceros gracilis. Heavy metals concentration especially Cu, Pb, Cd, and Hg in the sediments were lower than in previous studies. It could be related to the stricter environmental regulations which started enforced at the end of 1990s. Meanwhile, PAH and pesticide were higher than in previous studies. Increasing activities and maritime traffic in surrounding area of Tanjung Priok Port area and most likely comes from other adjacent harbors (Muara Baru, Muara Angke, and Marina Ancol harbor) and the massive usage of the pesticide compound in the households of the Jakarta City area were suspected to be the reasons. Estuaries area and locations <10 km were identified and predicted would produce harmful effects since the concentration of Zn and Hg in those area exceeded Probable Effects Level (PEL) of Sediment Quality Guidelines (SQG). The growth responses of Chaetoceros gracilis were varied greatly. Most of the sites (24 from 31 sites) showed inhibition effects on the growth of diatoms, ranged from 1.75-35.33 % (17.75±9.59 %) relative to control, with the highest inhibition value was at Cengkareng Drain estuary (M2). The relationship between the concentration of contaminants and the inhibition response could not be clearly explained, however, there is an assumption that low concentrations of some heavy metals were suspected to give adverse effects on diatom’s growth.Keywords: sediment, toxicity, marine diatoms, Chaetoceros gracilis, Jakarta BayEkosistem Teluk Jakarta dikenal mengalami pencemaran air dan degradasi habitat. Limbah cair dan padat berasal dari perumahan dan industri mengalir dan berakhir di teluk tersebut. Kajian ekotoksikologi diperlukan untuk mengetahui pengaruh pencemar terhadap organisme laut termasuk fitoplankton sebagai produsen primer. Analisis kimia dan uji toksisitas dilakukan untuk mengetahui dampak sedimen Teluk Jakarta terhadap diatom laut Chaetoceros gracilis. Konsentrasi logam berat terutama Cu, Pb, Cd, dan Hg dalam sedimen lebih rendah dari penelitian sebelumnya. Hal tersebut berkaitan dengan peraturan lingkungan ketat yang mulai diberlakukan pada akhir 1990-an. Namun demikian, konsentrasi PAH dan pestisida lebih tinggi dari penelitian sebelumnya. Hal tersebut diduga kuat akibat dari peningkatan aktivitas dan lalu lintas maritim di daerah sekitar Pelabuhan Tanjung Priok, juga kemungkinan besar berasal dari pelabuhan lain yang berdekatan (Muara Baru, Muara Angke, dan pelabuhan Marina Ancol) serta akibat penggunaan besar-besaran senyawa pestisida kegiatan rumah tangga di wilayah Kota Jakarta. Daerah dan lokasi estuaria <10 km diidentifikasi dan diprediksi akan menghasilkan efek berbahaya karena konsentrasi Zn dan Hg di area tersebut melebihi Probable Effects Level (PEL) dari Pedoman Kualitas Sedimen (SQG). Respon pertumbuhan diatom laut Chaetoceros gracilis sangat bervariasi. Sebagian besar stasiun (24 dari 31 stasiun) menunjukkan efek penghambatan pada pertumbuhan diatom, berkisar antara 1,75-35,33% (17,75 ± 9,59%) relatif terhadap kontrol, dengan nilai penghambatan tertinggi di muara Sungai Cengkareng (M2). Hubungan antara konsentrasi kontaminan dan respon penghambatan tidak dapat dijelaskan dengan lebih pasti namun terdapat asumsi konsentrasi rendah dari beberapa logam berat diduga memberikan efek buruk pada pertumbuhan diatom.Kata Kunci: sedimen, toksisitas, diatom laut, Chaetoceros gracilis, Teluk Jakarta