?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=ANALISIS+PENGARUH+MEDIUM+PERAMBATAN+TERHADAP%0D%0AINTENSITAS+CAHAYA+LACUBA+(Lampu+Celup+Bawah+Air)&rft.creator=FERDI+SETIAWAN%2C+0815031012&rft.subject=+&rft.description=abstrak+indonesia%0D%0ACahaya+merupakan+salah+satu+faktor+yang+sangat+penting+dalam+proses%0D%0Apenangkapan+ikan+yang+dioperasikan+pada+malam+hari.+Ikan+yang+memiliki+sifat%0D%0Afototaksis+ini+sangat+bergantung+pada+intensitas+cahaya+yang+dihasilkan+oleh+suatu%0D%0Asumber+cahaya.+Sumber+cahaya+yang+biasa+digunakan+oleh+nelayan+membutuhkan%0D%0Abiaya+yang+sangat+mahal+dan+hanya+menggunakan+satu+warna+cahaya+untuk%0D%0Amenangkap+ikan%2C+sedangkan+setiap+jenis+ikan+memiliki+tingkat+kepekaan+terhadap%0D%0Awarna+cahaya+yang+berbeda-beda.+Dengan+adanya+permasalahan+tersebut%2C+peneliti%0D%0Amerancang+alat+Lacuba+(Lampu+Celup+Bawah+Air)+yang+efektif+dan+efesien+untuk%0D%0Ameningkatkan+pendapatan+nelayan.%0D%0AOleh+karena+ikan+dapat+membedakan+warna+cahaya+dan+akan+cenderung+suka+pada%0D%0Awarna+cahaya+tertentu%2C+peneliti+membuat+5+jenis+warna+lacuba+yaitu+putih%2C+merah%2C%0D%0Ahijau%2C+kuning%2C+dan+biru.+Lacuba+ini+akan+diujicobakan+kedalam+3+medium%0D%0Aperambatan+untuk+melihat+nilai+intensitas+cahaya.+Tiga+medium+perambatan+itu%0D%0Aadalah+udara%2C+air+tawar+(PDAM)%2C+dan+air+laut+di+perairan+Queen+Artha.+Penelitian%0D%0Adilakukan+dengan+mengamati+perubahan+intensitas+cahaya+lacuba+dengan+merubah%0D%0Atingkat+ketebalan+atau+jarak+medium+perantara.%0D%0AHasil+penelitian+menunjukkan+adanya+pengaruh+perubahan+medium+perantara%0D%0Aterhadap+perubahan+intensitas+cahaya+pada+masing-masing+warna+lacuba.+Peneliti%0D%0Amenemukan+adanya+hubungan+yang+linear+antara+intensitas+cahaya+dengan%0D%0Aketebalan+medium+perantara+dengan+nilai+koefesien+korelasi+sebesar+0%2C968.+Hasil%0D%0Apenelitian+juga+menunjukkan+bahwa+penurunan+nilai+intensitas+cahaya+yang%0D%0Aterbesar+terjadi+pada+air+laut+yaitu+sebesar+0%2C89+Lux%2Fcm%2C+dan+yang+terkecil+di+udara%0D%0Ayaitu+sebesar+0%2C86+Lux%2Fcm.+Kekurangan+daya+yang+dibutuhkan+pada+air+laut%0D%0Aadalah+sebesar+14%2C6%25+dibandingkan+saat+Lacuba+berada+di+air+tawar+(PDAM).%0D%0AKata+Kunci%3A+Cahaya%2C+Medium%2C+Perambatan%2C+Ikan%2C+Intensitas+Cahaya%2C+Lacuba%2C%0D%0AAkuarium.%0D%0A%0D%0Aabstrak+inggris%0D%0ALight+is+a+very+important+factor+in+the+process+of+catching+fish+at+night.+Fish+with%0D%0Afototaksisis+highly+dependent+on+the+intensity+of+light+produced+by+a+light+source.%0D%0AThe+light+source+commonly+used+by+fishermen+is+very+expensive+and+equipped+by%0D%0Aa+single+light.+While+each+type+of+fish+has+a+level+of+sensitivity+to+light+of+different%0D%0Acolors.+Given+these+problems%2C+the+researcher+designed+a+tool+named+Lacuba%0D%0A(Submersible+Underwater+Lights)+more+effective+and+efficient+to+increase+the%0D%0Aincome+of+fishermen.%0D%0ABecause+of+the+fish+can+distinguish+the+color+of+light+and+will+tend+to+like+the%0D%0Aparticular+color+of+light%2C+the+researcher+created+Lacuba+in+five+kinds+of+colors+%3A%0D%0Awhite%2C+red%2C+green%2C+yellow%2C+and+blue+.+The+Lacuba+will+be+experimented+into+three%0D%0Apropagation+medium+for+checking+itslight+intensity.+The+three+propagation%0D%0Amedium+selected+werethe+air%2C+the+fresh+water+(PDAM)%2C+and+the+sea+water+from%0D%0AQueen+Artha+Beach.+The+study+was+conducted+by+observing+changes+in+light%0D%0Aintensity+of+Lacuba+by+changing+the+thickness+or+distance+of+medium+level.%0D%0AThe+result+showed+that+the+changing+of+the+medium+level+is+effected+the+light%0D%0Aintensity+in+each+color+of+Lacuba.+The+Researcher+found+there+was+a+linear+relation%0D%0Abetween+the+intensity+of+light+with+the+thickness+of+medium+level+with%0D%0Acoefficientcorrelation+value+of+0.968.+The+result+also+showed+that+the+decrease+of%0D%0Alight+intensity+value+was+greater+in+the+sea+water+for+0.89+Lux%2Fcm%2C+while+the+air%0D%0Awas+lesser+for+0.86+Lux%2Fcm.+Shortage+of+power+required+in+sea+water+was+at+14.6%0D%0A%25+compared+to+when+Lacuba+was+in+freshwater+(PDAM).%0D%0AKey+words+%3A+Light%2C+Medium%2C+Propagation%2C+Fish%2C+Light+Intensity%2C+Lacuba%2C%0D%0AAquarium&rft.publisher=Fakultas+Teknik&rft.date=2014-09-08&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5359%2F1%2FABSTRACT.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5359%2F2%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5359%2F3%2FCOVER%2520DALAM.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5359%2F4%2FHALAMAN%2520PERSETUJUAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5359%2F5%2FHALAMAN%2520PENGESAHAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5359%2F6%2FPERNYATAAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5359%2F7%2FRIWAYAT%2520HIDUP.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F5359%2F8%2FMOTO.pdf&rft.format=text&rft.i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