PENGGUNAAN BEBERAPA MEDIA PELEKAT SUBSTRAT PADA TRANSPLANTASI KARANG Acropora millepora (EHRENBERG 1834) DI PERAIRAN PULAU SERANGAN DENPASAR

SANDHI RADITYA, Dr. Ir. Djumanto, M.Sc.; Drs. Namastra Probosunu, M.Si.

2015 | Skripsi | S1 MANAJEMEN SUMBER DAYA PERIKANAN

Penelitian ini bertujuan untuk mengetahui jenis media pelekat substrat karang yang terbaik untuk transplantasi berdasarkan tingkat kelulushidupan, pertumbuhan, dan laju pertumbuhan karang A. millepora. Media pelekat substrat yang digunakan yaitu: dempul, semen abu, campuran semen abu dan semen putih, campuran semen abu dan gips, lem epoxy, dan lem cyanoacrylate. Pengambilan data dilakukan setiap minggu selama bulan Juli-September 2014 dengan mengukur tinggi, lebar, pertambahan tunas karang, dan parameter lingkungan perairan. Pertumbuhan karang diukur menggunakan jangka sorong setelah satu minggu transplantasi. Parameter lingkungan perairan yang diukur adalah suhu air, kecepatan arus, kecerahan, dan salinitas. Hasil penelitian menunjukkan bahwa A. millepora memiliki tingkat kelulushidupan sebesar 100% kecuali pada penanaman menggunakan lem cyanoacrylate sebesar 50%. A. millepora mengalami pertambahan tinggi paling cepat pada media pelekat lem cyanoacrylate yaitu sebesar 1,98 mm/bulan; pertambahan lebar paling cepat pada media pelekat campuran semen abu dan semen putih yaitu sebesar 3,68 mm/bulan; serta pertambahan tunas paling cepat pada media pelekat dempul yaitu sebesar 23 tunas/bulan. A. millepora pada berbagai perlakuan memiliki laju pertambahan tinggi dan lebar rata-rata yang sama. Namun, A. millepora memiliki perbedaan nyata pada laju pertambahan tunas rata-rata antara perlakuan dempul (kontrol) dengan perlakuan campuran semen abu dan gips, lem epoxy, serta lem cyanoacrylate (α = 5%). Semua media pelekat yang diujikan dapat digunakan untuk transplantasi karang.

The objective of this study was to investigate the best adhesive substrate media for coral transplantation interm of survival rate, growth, and growth rate of A. millepora. There were six adhesive media substrate which were tested, namely: putty, portland cement, mixture of portland cement and white cement, mixture of portland cement and gypsum, epoxy glue, and cyanoacrylate glue. Data was collected weekly from July to September 2014 by measuring coral height, coral width, accretion of coral branches, and the water parameter. Coral growth was measured using calipers after a week transplantation. The water parameter that were measured namely: temperature, current speed, brightness, and salinity. The result showed that among the adhesive media substrates which were tested the survival rate of A. millepora at 100% except in planting by using cyanoacrylate glue which only 50%. A. millepora has the fastest growth of height at 1,98 mm/month in the cyanoacrylate treatment, the fastest growth of width at 3,68 mm/month in the mixture of portland cement and white cement treatment, and the fastest growth of branches were 23 branches/month, obtained from putty treatment. A. millepora had an equal average growth rate of height and width. However, there were significant difference at the growth rate of branches among putty treatment (control) with three other treatments, that were the mixture of portland cement and gypsum, epoxy glue, and cyanoacrylate glue (α = 5%). As overall, adhesive media substrates which were tested can be applied for coral transplantation.

Kata Kunci : coral, Denpasar, growth, media, transplantation