LAPORAN PENELITIAN HIBAH PENELITIAN STRATEGI NASIONAL
TAHUN ANGGARAN 2009
EKSPRESI PROTEIN LAMUN (SEAGRASS)
TERHADAP PENCEMARAN LOGAM BERAT
TIMBAL (Pb) DI PERAIRAN PESISIR UTARA
JAWA TIMUR
OLEH : Dr.Ir.Endang Yuli Herawati., MS.
Dr.drh. Aulanni’am, DES
Dibiayai oleh Direktorat Jendral Pendidikan Tinggi, Departemen Pendidikan Nasional, melalui DIPA Universitas Brawijaya
No 0174.0/023—04.2/XV/2009 tanggal 31 Desember 2008, dan berdasarkan SK Rektor Nomor : 160/SK/2009, tanggal 7 Mei 2009
UNIVERSTAS BRAWIJAYA
MALANG, NOVEMBER 2009
RINGKASAN
Resiko polusi lingkungan ion logam berat Pb karena toxisitas serta menyebabkan
kelumpuhan dan akumulasi dalam biota, maka diperlukan monitoring konsentrasi logam
berat dalam lingkungan. Analisa kandungan logam berat dalam sedimen dan air banyak
dilakukan namun dalam tumbuhan lamun masih sangat sedikit dilakukan. Tujuan 1).
Mengetahui kandungan Pb pada akar, seludang dan daun lamun, sedimen dan air dari
lokasi yang berbeda 2). Menentukan tingkat pencemaran perairan pesisir Utara Jawa
Timur berdasarkan kandungan logam berat Pb; 3). Mengetahui dan menentukan profil
protein bagian - bagian tumbuhan lamun yang terkontaminasi Pb. Hasil penelitian didapat
1). Kandungan Pb dalam tumbuhan lamun dan sedimen di lingkungan tercemar
cenderung lebih tinggi daripada di lingkungan tidak tercemar; 2). Kandungan Pb air laut
Lamongan (0,062 ± 0,003 ppm) dan Lempuyang (0,049 ± 0,004 ppm) < sedimen
Lamongan (5,847 ± 0,058 ppm) dan Lempuyang (1,238 ± 0,034 ppm) namun pada air
sudah melebihi ambang batas Baku mutu air laut untuk kehidupan biota oleh KMNLH
(2004) 0,008 ppm; 3). Profil protein menunjukkan terekspresi hampir sama dengan berat
molekul 75,7 kDa di Lamongan dan 72 kDa di Lempuyang dari sampel akar, seludang
dan daun lamun Cymodocea rotundata. Disarankan 1). Tumbuhan lamun berguna untuk
membantu mengurangi toksisitas Pb di perairan pesisir; 2). Perlu penelitian tentang luas
area tumbuhan lamun pada suatu perairan dalam upaya mengurangi kandungan Pb dan 3).
Perlu dilakukan pengamatan tentang pengaruh salinitas yang lebih rendah
Kata kunci : lamun dan logam berat Pb
SUMMARY
Environmental pollution risk Pb heavy metal ion because toxicitas and causes
immobility and accumulation in biota, therefore needful monitoring concentrates heavy
metal in environmentally. Heavy metal concentration analysis in sedimentary and water a
lot of is done but on seagrass still measly is done. To the effect 1). Knowing Pb content
on seagrass parts (root, rhizome and leaf ), sediment and water of location that variably
2). Determining pollution degree Javanese North coast East base Pb's heavy metal
content; 3 ). Know and determines seagrass part protein profiles contamination Pb’s ones.
Observational result to be gotten 1). Pb's content in seagrass and sedimentary at begrimed
environment tends to overbid than at environment is not begrimed; 2 ). Pb's content water
goes out to sea Lamongan (0,062 ± 0,003 ppm) and Lempuyang (0,049 ± 0,004 ppm) <
Lamongan's sediment (5,847 ± 0,058 ppm) and Lempuyang (1,238 ± 0,034 ppm) but on
water was overshot Default bounds sill water quality goes out to sea to biota's life by
KMNLH (2004) 0,008 ppm; 3 ). Protein profile points out most expression close
resemblance heavily molecule 75,7 kDa at Lamongan and 72 kDa at Lempuyang of root
sample, seludang and leaf romances Cymodocea rotundata . Suggested 1). Seagrass plant
to help reduce Pb's toxicity at coast waters; 2 ). Need research seagrass area extent at one
particular waters in the effort reduce Pb's content and 3). Need to be done by more watch
about inferior salinity influence
Key word : Seagrass and Pb heavy metal
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