Nirwani Soenardjo
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Aplikasi Budidaya Rumput Laut Eucheuma cottonii (Weber van Bosse) Dengan Metode Jaring Lepas Dasar (Net Bag) Model Cidaun Nirwani Soenardjo
Buletin Oseanografi Marina Vol 1, No 1 (2011): Buletin Oseanografi Marina
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (261.72 KB) | DOI: 10.14710/buloma.v1i1.2970

Abstract

Abstract                 Eucheuma cottonii (Weber van Bosse) is a marine commodity, wich need several particuliarly treatment in the enviroment due to  their cultivation.  The floating cultivation model cidaun using the net for sea grass cultivation is the preference methods to protec the thallus.             The aim of the research is to find the specific growth rate of the Euheuma cottonii at the Bantarpanjang Nusakambangan Island. The eksperiment were done from April to Mei 2004. The research eksperiment based on the randomize with factorial approach 2 x2. The amount of seed (100 gr , 150 gr) and the seagrass distance ( 1,5 m , 2 m ) were aplied as the treatment with 5 replications. The research result show that the specific growth rate reach 4,4 %  , wich justified that the cidaun floating methode can be applied as the cultivation methode.   Key Words  : Eucheuma cottonii, Cultivation, Cidaun floating metode, specific growth rate
Kandungan Logam Berat Timbal (Pb) Dan Tembaga (Cu) Pada Akar Dan Buah Mangrove Avicennia marina Di Perairan Tanjung Emas Semarang Endang Supriyantini; Nirwani Soenardjo
Jurnal Kelautan Tropis Vol 18, No 2 (2015): JURNAL KELAUTAN TROPIS
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (590.596 KB) | DOI: 10.14710/jkt.v18i2.520

Abstract

Perairan Tanjung Emas merupakan salah satu kawasan pesisir yang dekat dengan aktivitas pelabuhan, industri, dan pemukiman penduduk. Tingginya aktivitas di kawasan Tanjung Emas diduga mengalirkan berbagai limbah yang dapat menimbulkan pencemaran, antara lainpencemaran oleh logam berat Pb dan Cu. Penelitian ini bertujuan untuk mengetahui kandungan logam berat Pb dan Cu dalam air, sedimen, akar, dan buah mangrove Avicennia marinaserta untuk mengetahui tingkat akumulasi terhadap logam-logam tersebut. Metode yang digunakan dalam penelitian ini adalah metode deskriptif dan penentuan lokasi penelitian dilakukan dengan metode purposive sampling. Kemudian logam berat dianalisis menggunakan AAS (Atomic Absorbtion Spectrophotometry). Hasil penelitian menunjukan bahwa kandungan logam berat Pb dan Cu di perairan Tanjung Emas Semarang menunjukkan pencemaran berat karena sudah melebihi batas ambang yang ditentukan yaitu masing-masing 0,01-0,06 mg/L (Pb) dan 0,004-0,14 mg/L (Cu). Kandungan Cu pada sedimen sebesar 1,236-3,212 mg/kg; Cu pada akar2,104-2,529 mg/kg; dan Cu pada buah A. marina 1,640-4,336 mg/kg.Hampir semua hasil ini lebih tinggi bila dibandingkan dengan kandungan Pb pada sedimen 0,251-0,507 mg/kg; Pb pada akar 0,732-1,625 mg/kg; dan Pb pada buah A. marina 0,114-0,345 mg/kg.BCF akar tertinggi ditemukan pada logam Pb yaitu 1,443-6,474 dan TF buah tertinggi ditemukan pada logam Cu yakni 0,674-1,714.Kata Kunci : Logam Berat Pb dan Cu, kolom air,sedimen, akar dan buah A.marina, BCF dan TF A. marina.Tanjung Emas waters were one of the coastal areas near that port activities, industries, and residential areas. The high activities in the area of Tanjung Emas allegedly flowed various wastes that can cause pollution, that is heavy metal Pb and Cu. The aim of this research was to determine the content of heavy metals Pb and Cu in the waters, sediment, roots, and fruits of the mangrove Avicennia marina as well as to determine the level of accumulation for these metals. The method that was used in this research was descriptive method and the determination of the location of research area used purposive sampling method. Then, heavy metals were analysedusing AAS (Atomic Absorption Spectrophotometry). The results showed that the content of heavy metals Pb and Cu in the waters of Tanjung Emas Semarang showed heavy contamination because it exceeds thespecifiedthreshold is 0,01-0,06 mg/L (Pb) and 0,004-0,14 mg/L (Cu). The content of Cu in the sediments was 1,236-3,212 mg/kg; Cucontentat the root was 2,104-2,529 mg/kg; and Cu content in fruits of mangrove A. marina is 1,640-4,336 mg/kg. Almost all of these results was higher when compared with the content of Pb in sediments is 0,251-0,507 mg/kg; Pb at the root is 0,732-1,625 mg/kg; and Pb in A. marina fruits is 0,114-0,345 mg/kg. The BCF highest root was found in Pb is 1,443-6,474 and TF highest fruits found on the committal was 0,674-1,714.Keywords : Heavy Metal Pb and Cu, in waters, Sediment, Roots and Fruit of A. marina, BCF and TFA. marina