Research article
Pertumbuhan Fitoplankton Dunaliella sp dengan Cahaya Berbeda pada Skala Laboratorium
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Abstract
Dunaliella sp merupakan fitoplankton yang kaya akan kandungan β-karotin dan gliserol. Saat ini Dunaliella sp dibudidayakan sebagai sumber pakan bagi ikan. Salah satu parameter lingkungan yang menunjang pertumbuhan Dunaliella sp adalah intensitas cahaya. Dalam kultur skala laboratorium cahaya matahari dapat diganti dengan cahaya lampu. Tujuan dari penelitian ini adalah untuk mengetahui pertumbuhan Dunaliella sp skala laboratorium dengan intensitas cahaya yang berbeda. Penelitian dilaksanakan di Laboratorium Pakan Alami Pusat Penelitian Laut Dalam LIPI Ambon pada bulan Juli 2013. Penelitian menggunakan tiga perlakuan cahaya lampu TL yaitu cahaya 20 watt, 40 watt dan 60 watt. Setiap perlakuan diberikan bibit Dunaliella sp dengan kepadatan awal 820.000 sel/ml. Perhitungan kepadatan dilakukan setiap 24 jam selama 21 hari. Kultur pada ketiga perlakuan menunjukan adanya perbedaan dalam pencapaian puncak pertumbuhan. Dimana terjadi tiga kali puncak pertumbuhan pada ketiga perlakuan. Puncak pertumbuhan pertama ketiga perlakuan terjadi pada hari yang sama yaitu hari keempat, sedangkan puncak pertumbuhan kedua lebih cepat terjadi pada cahaya 60 Watt dan puncak pertumbuhan ketiga pada cahaya 40 Watt. Hal ini disebabkan karena intensitas cahaya yang diberikan berbeda, sehingga mengakibatkan kecepatan pertumbuhannya berbeda pula. Hasil analisa statistik tidak ada pengaruh cahaya terhadap pertumbuhan Dunaliella sp
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UNIDAR
Competing interest
The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
Conflict of interest
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
Ethical approval acknowledgements
No ethical approval required for this article. All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1975, as revised in 2008 (5)
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Data sharing not applicable to this article as no datasets were generated or analysed during the current study, and/or contains supplementary material, which is available to authorized users.
Bibliographic Information
Cite this article as:
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Submitted
4 March 2018 -
Accepted
10 April 2018 -
Published
2 May 2018 -
Version of record
2 May 2018 -
Issue date
31 May 2018
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