?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENGARUH+KEPADATAN+Azolla+sp.+TERHADAP+KUALITAS+AIR%2C%0D%0APERTUMBUHAN+DAN+TINGKAT+KELANGSUNGAN+HIDUP%0D%0ABENIH+IKAN+NILA+(Oreochromis+niloticus)%0D%0APADA+SISTEM+PEMELIHARAAN+TANPA+GANTI+AIR&rft.creator=0714111006%2C+EVI+NILA+DEWI&rft.subject=+&rft.description=Abstrak%0D%0A%0D%0AIkan+nila+merupakan+komoditas+yang+diminati+di+beberapa+negara.+Hal+tersebut%0D%0Adiketahui+dari+permintaan+pasar+dunia+yang+cukup+tinggi.+Sistem+budidaya+yang%0D%0Adapat+dilakukan+dalam+membudidayakan+ikan+nila+adalah+dengan+sistem+budidaya%0D%0Atanpa+ganti+air.+Salah+satu+teknik+yang+tepat+untuk+menjaga+kualitas+air+dalam%0D%0Apemeliharaan+ikan+nila+dalam+sistem+tanpa+ganti+air+adalah+dengan+penggunaan%0D%0Abioremediasi.+Azolla+sp.+merupakan+tanaman+air+yang+berperan+sebagai+agen%0D%0Abioremediasi.+Penelitian+bertujuan+untuk+mengetahui+pengaruh+kepadatan+Azolla%0D%0Asp.+terhadap+kualitas+air%2C+pertumbuhan%2C+dan+tingkat+kelangsungan+hidup+benih+ikan%0D%0Anila+serta+mengetahui+kepadatan+Azolla+sp.+terbaik+bagi+pertumbuhan+dan+tingkat%0D%0Akelangsungan+hidup+benih+ikan+nila+dalam+sistem+tanpa+ganti+air.+Rancangan%0D%0Apenelitian+yang+digunakan+adalah+Rancangan+Acak+Lengkap+(RAL)+dengan+lima%0D%0Aperlakuan+dan+tiga+ulangan+(0%2C50%2C100%2C150%2C+dan+200+gr%2Fm2+Azolla+sp.).+Penelitian%0D%0Adilakukan+menggunakan+benih+ikan+nila+5-7+cm+dan+akuarium+berukuran%0D%0A80x50x60+cm3.+Parameter+dalam+penelitian+meliputi+suhu%2C+pH%2C+DO%2C+amoniak%2C+laju%0D%0Apertumbuhan+harian+benih+ikan+nila+dan+Azolla+sp.%2C+serta+tingkat+kelangsungan%0D%0Ahidup+relatif+(SR+relatif).+Hasil+penelitian+menunjukkan+bahwa+kepadatan+Azolla%0D%0Asp.+yang+berbeda+memberikan+pengaruh+nyata+terhadap+penurunan+dan+kestabilan%0D%0ApH+hingga+batas+optimal.+Hasil+penelitian+juga+menunjukkan+bahwa+Azolla+sp.%0D%0Ameningkatkan+kelangsungan+hidup+dan+laju+pertumbuhan+harian+benih+ikan+nila.%0D%0AKepadatan+Azolla+sp.+terbaik+bagi+pemeliharaan+benih+ikan+nila+dalam+sistem%0D%0Atanpa+ganti+air+adalah+150+gram%2Fm2.%0D%0AKata+kunci+%3A+Azolla+sp.%2C+kualitas+air%2C+benih+ikan+nila%2C+pertumbuhan%2C+SR+relatif%0D%0A%0D%0AAbstract%0D%0A%0D%0ATilapia+is+an+interesting+commodity+in+many+countries.+It+is+well+known+from+its%0D%0Ahigh+demand+all+over+the+world.+Aquaculture+system+that+can+be+conducted+to+rear%0D%0Atilapia+is+zero+water+exchange+system.+One+method+used+to+mantain+water+quality%0D%0Ain+the+tilapia+culture+by+using+zero+water+exchange+system+is+bioremediation.%0D%0AAzolla+sp.+is+an+aquatic+plant+that+might+be+used+an+agent+of+bioremediation.+The%0D%0Aaims+of+this+research+were+to+determine+density+effect+Azolla+sp.+on+water+quality%2C%0D%0Agrowth%2C+and+survival+rate+of+tilapia+seed+in+zero+water+exchange+system%2C+and+to%0D%0Adetermine+the+best+density+of+Azolla+sp.+for+growth+an+survival+rate+of+tilapia+seed%0D%0Ain+zero+water+exchange+system.+The+design+of+the+research+was+a+Completely%0D%0ARandomized+Design+(CRD)+with+five+treatments+(0%2C+50%2C+100%2C+150%2C+and+200+g%2Fm2%0D%0AAzolla+sp.)+and+triplicate.+Tilapia+seed+length+5-7+cm+and+aquarium+80x50x60+cm3%0D%0Asize+were+used+in+this+research.+The+observations+towards+water+quality+and%0D%0Agrowth+parameter+were+conducted+including+temperature%2C+pH%2C+DO%2C+ammonia%2C%0D%0Adaily+growth+rate+of+tilapia+seed+and+Azolla+sp.%2C+and+relative+survival+rate+(relative%0D%0ASR).+The+result+showed+that+density+of+Azolla+sp.+gave+significant+effect+on%0D%0Adecreasing+and+stabilizing+to+optimum+pH.+The+result+also+showed+that+Azolla+sp.%0D%0Aincreased+survival+rate+and+growth+rate+of+tilapia+seed.+The+best+density+of+Azolla%0D%0Asp.+for+tilapia+seed+culture+in+zero+water+exchange+system+was+150+gram%2Fm2.%0D%0AKeywords+%3A+Azolla+sp.%2C+water+quality%2C+tilapia+seed%2C+growth%2C+relative+SR&rft.date=2012-02-04&rft.type=Skripsi&rft.type=PeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F12738%2F1%2F1%2520COVER%2520luar.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F12738%2F2%2F2%2520ABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F12738%2F3%2F3%2520cover%2520dalam.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F12738%2F4%2F4%2520HAL%2520PERSETUJUAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F12738%2F5%2F5%2520MENGESAHKAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F12738%2F6%2F6%2520HAL%2520Persembahan.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F12738%2F7%2F7%2520MOTTO.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F12738%2F8%2F8%2520RIWAYAT%2520HIDUP.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F12738%2F9%2F9%2520SANWACANA.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F12738%2F10%2F10%2520DAFTAR%2520ISI.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F12738%2F11%2F11DAFTAR%2520GA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