Departemen Ilmu Kelautan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro, Indonesia
BibTex Citation Data :
@article{JKT3849, author = {Bambang Yulianto and Rini Pramesti and Rozi Hamdani and Sunaryo Sunaryo and Adi Santoso}, title = {Kemampuan Biosorpsi Dan Pertumbuhan Rumput Laut Gracilaria sp. Pada Media Mengandung Logam Berat Kadmium (Cd)}, journal = {Jurnal Kelautan Tropis}, volume = {21}, number = {2}, year = {2018}, keywords = {kadimum (Cd); Logam Berat; biosorpsi; Gracilaria sp.; cadmium (Cd); heavy metal; biosorption}, abstract = { Biosorption Capacity and Growth of Seaweed Gracilaria sp. In Media Containing Heavy Metal Cadmium (Cd) Contamination of coastal and marine waters by heavy metals in significant concentrations will threaten the lives of biota inhabitant. One of the dangerous heavy metals due to its potential toxicity is cadmium (Cd). The purpose of this study was to find out: biosorption ability of Gracilaria sp. against Cd in seawater media, the effect of exposure time on Cd content absorbed by Gracilaria sp., and growth of Gracilaria sp. in Cd-contaminated media with different concentrations. This study used a laboratory experimental method, by exposing Gracilaria sp. to three different concentration treatments and one control treatment (A: Control; B: 0.1 mg/L; C: 1 mg/L; and D: 10 mg/L) for 4 weeks. Observation of biosorption ability and growth of Gracilaria sp. was done every week. The results of the research on biosorption ability showed that Gracilaria sp. was able to absorb Cd dissolved in seawater. The concentrations of Cd absorbed by Gracilaria sp., respectively in treatment B were 1.81 mg/kg (first week), 2.33 mg/kg (second week), 4.51 mg/kg (3rd week), and 1.47 mg/kg (4th week); in treatment C were 8.07 mg/kg (first week), 11.67 mg/kg (second week), 9.86 mg/kg (3rd week), and 8.67 mg/kg (4th week); and in treatment D were 52.59 mg/kg (first week), 56.66 mg/kg (second week), 78.01 mg/kg (3rd week), and 87.67 mg/kg (4th week). It is concluded that Gracilaria sp was capable of absorbing cadmium dissolved in seawater. However, the growth of Gracilaria sp. (absolute and specific growth rate) showed a decrease in biomass weight due to exposure to Cd-contaminated media, making Gracilaria sp. was not as a good species to be used as a Cd-metal hyperaccumulator. Kontaminasi perairan pesisir dan laut oleh logam berat dalam konsentrasi yang signifikan akan mengancam bagi kehidupan biota yang ada di dalamnya. Salah satu logam berat yang berbahaya karena sifat toksisitasnya adalah Kadmium (Cd). Tujuan dari penelitian ini untuk mengetahui: 1) kemampuan biosorpsi rumput laut Gracilaria sp. terhadap logam berat Cd dalam media air laut dengan konsentrasi yang berbeda , 2) mengetahui pengaruh perbedaan waktu pendedahan ( exposure time ) terhadap kandungan logam Cd terabsorpsi oleh Gracilaria sp., dan 3) mengetahui pertumbuhan Gracilaria sp. pada media terkontaminasi logam berat Cd dengan konsentrasi yang berbeda. Penelitian menggunakan metode eksperimental laboratoris, dengan melakukan pemaparan rumput laut Gracilaria sp. pada tiga perlakuan konsentrasi yang berbeda dan satu perlakuan kontrol (A: Kontrol; B: 0,1 mg/L; C; 1 mg/L; dan D 10 mg/L) selama 4 minggu masa pemeliharaan. Pengamatan kemampuan bioabsorpsi dan pertumbuhan Gracilaria sp. dilakukan setiap minggu. Hasil penelitian kemampuan bioabsorpsi menunjukkan bahwa Gracilaria sp. mampu menyerap logam Cd yang terlarut dalam air laut. Konsentrasi logam berat Cd yang diserap Gracilaria sp. pada perlakuan B = 1,81 mg/kg (minggu ke-1), 2,33 mg/kg (minggu ke-2), 4,51 mg/kg (minggu ke-3), 1,47 mg/kg (minggu ke-4); Perlakuan C = 8,07 mg/kg (minggu ke-1), 11,67 mg/kg (minggu ke-2), 9,86 mg/kg (minggu ke-3), dan 8,67 mg/kg (minggu ke-4); Perlakuan D = 52,59 mg/kg (minggu ke-1), 56,66 mg/kg (minggu ke-2), 78,01 mg/kg (minggu ke-3), dan 87,67 mg/kg (minggu ke-4). Dapat disimpulkan bahwa Gracilaria sp mampu menyerap Cd terlarut dalam air laut. Namun demikian, pertumbuhan Gracilaria sp. (pertumbuhan mutlak dan laju pertumbuhan spesifik) mengalami penurunan berat biomassa akibat pemaparan pada media mengandung logam Cd, sehingga menjadikan spesies Gracilaria sp. bukan sebagai spesies hiperakumulator yang baik untuk logam Cd. }, issn = {2528-3111}, pages = {129--136} doi = {10.14710/jkt.v21i2.3849}, url = {https://ejournal2.undip.ac.id/index.php/jkt/article/view/3849} }
Refworks Citation Data :
Biosorption Capacity and Growth of Seaweed Gracilaria sp. In Media Containing Heavy Metal Cadmium (Cd)
Contamination of coastal and marine waters by heavy metals in significant concentrations will threaten the lives of biota inhabitant. One of the dangerous heavy metals due to its potential toxicity is cadmium (Cd). The purpose of this study was to find out: biosorption ability of Gracilaria sp. against Cd in seawater media, the effect of exposure time on Cd content absorbed by Gracilaria sp., and growth of Gracilaria sp. in Cd-contaminated media with different concentrations. This study used a laboratory experimental method, by exposing Gracilaria sp. to three different concentration treatments and one control treatment (A: Control; B: 0.1 mg/L; C: 1 mg/L; and D: 10 mg/L) for 4 weeks. Observation of biosorption ability and growth of Gracilaria sp. was done every week. The results of the research on biosorption ability showed that Gracilaria sp. was able to absorb Cd dissolved in seawater. The concentrations of Cd absorbed by Gracilaria sp., respectively in treatment B were 1.81 mg/kg (first week), 2.33 mg/kg (second week), 4.51 mg/kg (3rd week), and 1.47 mg/kg (4th week); in treatment C were 8.07 mg/kg (first week), 11.67 mg/kg (second week), 9.86 mg/kg (3rd week), and 8.67 mg/kg (4th week); and in treatment D were 52.59 mg/kg (first week), 56.66 mg/kg (second week), 78.01 mg/kg (3rd week), and 87.67 mg/kg (4th week). It is concluded that Gracilaria sp was capable of absorbing cadmium dissolved in seawater. However, the growth of Gracilaria sp. (absolute and specific growth rate) showed a decrease in biomass weight due to exposure to Cd-contaminated media, making Gracilaria sp. was not as a good species to be used as a Cd-metal hyperaccumulator.
Kontaminasi perairan pesisir dan laut oleh logam berat dalam konsentrasi yang signifikan akan mengancam bagi kehidupan biota yang ada di dalamnya. Salah satu logam berat yang berbahaya karena sifat toksisitasnya adalah Kadmium (Cd). Tujuan dari penelitian ini untuk mengetahui: 1) kemampuan biosorpsi rumput laut Gracilaria sp. terhadap logam berat Cd dalam media air laut dengan konsentrasi yang berbeda, 2) mengetahui pengaruh perbedaan waktu pendedahan (exposure time) terhadap kandungan logam Cd terabsorpsi oleh Gracilaria sp., dan 3) mengetahui pertumbuhan Gracilaria sp. pada media terkontaminasi logam berat Cd dengan konsentrasi yang berbeda. Penelitian menggunakan metode eksperimental laboratoris, dengan melakukan pemaparan rumput laut Gracilaria sp. pada tiga perlakuan konsentrasi yang berbeda dan satu perlakuan kontrol (A: Kontrol; B: 0,1 mg/L; C; 1 mg/L; dan D 10 mg/L) selama 4 minggu masa pemeliharaan. Pengamatan kemampuan bioabsorpsi dan pertumbuhan Gracilaria sp. dilakukan setiap minggu. Hasil penelitian kemampuan bioabsorpsi menunjukkan bahwa Gracilaria sp. mampu menyerap logam Cd yang terlarut dalam air laut. Konsentrasi logam berat Cd yang diserap Gracilaria sp. pada perlakuan B = 1,81 mg/kg (minggu ke-1), 2,33 mg/kg (minggu ke-2), 4,51 mg/kg (minggu ke-3), 1,47 mg/kg (minggu ke-4); Perlakuan C = 8,07 mg/kg (minggu ke-1), 11,67 mg/kg (minggu ke-2), 9,86 mg/kg (minggu ke-3), dan 8,67 mg/kg (minggu ke-4); Perlakuan D = 52,59 mg/kg (minggu ke-1), 56,66 mg/kg (minggu ke-2), 78,01 mg/kg (minggu ke-3), dan 87,67 mg/kg (minggu ke-4). Dapat disimpulkan bahwa Gracilaria sp mampu menyerap Cd terlarut dalam air laut. Namun demikian, pertumbuhan Gracilaria sp. (pertumbuhan mutlak dan laju pertumbuhan spesifik) mengalami penurunan berat biomassa akibat pemaparan pada media mengandung logam Cd, sehingga menjadikan spesies Gracilaria sp. bukan sebagai spesies hiperakumulator yang baik untuk logam Cd.
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