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      Toksisitas Logam Berat Timbal (Pb) dan Pengaruhnya Pada Konsumsi Oksigen dan Respon Hematologi Juvenil Ikan Kerapu Macan (Epinephelus fuscoguttatus)

      Toxicity of heavy metal’s lead (Pb) and its effects on oxygen consumption and hematological response of juvenile tiger grouper (Epinephelus fuscoguttatus)

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      Date
      2011
      Author
      Sahetapy, Jacqueline M.F
      Djokosetiyanto, D.
      Supriyono, Eddy
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      Abstract
      Timbal (Pb) adalah salah satu logam berat yang beracun dan berbahaya yang banyak ditemukan sebagai pencemar dan cenderung mengganggu kelangsungan hidup organisme perairan. Tingginya konsentrasi timbal yang mencemari perairan dapat mengganggu proses kelangsungan hidup juvenil - juvenil ikan, karena timbal berikatan dengan lendir insang dan akan menyebabkan gangguan pada sistem pernapasan ikan sehingga menurunkan kemampuan sel darah merah mengikat oksigen dan menghalangi kerja enzim sehingga proses fisiologis dan metabolisme tubuh terganggu. Penelitian ini bertujuan untuk menganalisis pengaruh toksisitas timbal pada berbagai konsentrasi terhadap tingkat konsumsi oksigen, kadar glukosa darah, respon hematologi ( kadar hematokrit, hemoglobin, jumlah eritrosit, dan leukosit), kelangsungan hidup dan laju pertumbuhan pada ikan kerapu macan. Penelitian ini dilakukan di Laboratorium Lingkungan Departemen Budidaya Perairan, Institut Pertanian Bogor dan dilaksanakan selama 3 (tiga) bulan. Penelitian dilaksanakan dalam dua tahapan yaitu : uji akut dan uji sub kronik. Ikan uji yang digunakan adalah juvenil ikan kerapu macan (Epinephelus fuscogutattus) berukuran 6-7 cm yang diperoleh dari Balai Benih Situbondo Jawa Timur.
       
      Lead (Pb) is a toxic and dangerous heavy metal, most found as contaminants and tend to interfere the survival of aquatic organisms. The aim of this research was to analyze the effect of lead toxicity at various concentrations to the level of oxygen consumption, blood glucose level, hematological response (hematocrit, hemoglobin, number of erythrocyte and leukocytes), survival and growth of tiger grouper fish. This study was conducted in the two stages, those are: acute and sub–chronic test. The results showed that the impact of lead toxicity in juvenile tiger grouper fish would reduce the level of oxygen consumption, hematocrit, hemoglobin and the number of erythrocyte, those were equal to 0.34 mg O2/gr of body weight / hour; 9.66%; 2.64 % and 0,77x106 cells/mm3. Besides the effect of lead toxicity also increases the number of leukocytes (0,81x106 cells/mm3), blood glucose levels (90.79 mmol / liter), effect growth rate and reduce the survival rates.
       
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      http://repository.ipb.ac.id/handle/123456789/52474
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      • MT - Fisheries [3210]

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