MATURE GONADAL BROODSTOCK SELECTION IN GONGGONG CONCH Laevistrombus turturella
| Main Authors: | Muzahar, Jr., Muhammad Zairin , Yulianda, Fredinan , Suprayudi, Muhammad Agus , Alimuddin, Effendi, Irzal |
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| Format: | Article info application/pdf eJournal |
| Bahasa: | eng |
| Terbitan: |
Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University
, 2020
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| Subjects: | |
| Online Access: |
http://journal.ipb.ac.id/index.php/jurnalikt/article/view/28144 http://journal.ipb.ac.id/index.php/jurnalikt/article/view/28144/19776 |
Daftar Isi:
- Gonggong conch Laevistrombus turturella is a sea conch that has been consumed by many people in Kepulauan Riau Province so the population is expected to decline. One of the efforts to conserve conchs is through culture. Culture activities require the availability of the mature gonad broodstock. The aim of this study was to analyze the size of a mature gonadal of gonggong conch based on the shell length and the color of gonads, and to evaluate the effect of different temperature exposures in the speed of determining the sexual of broodstock. The conch shell length was measured by a caliper, then were broken to observe the gonad color. Data were analyzed by student t-test. The exposure treatments with water temperatures of 15°C (P1), 20°C (P2) and 30°C (P3). Seven conch broodstocks were put into the aquarium according to the treatment, the duration of time the soft gonggong conch body came out of the shell was recorded. Data were analyzed with the Kruskal Wallis test. The results showed that the average length of the mature gonad gonggong conch broodstocks from Madong-Tanjungpinang sea were 63.449±5.352 mm (males) and 66.953±5.876 mm (females). Determination of the gonggong conch broodstock sexual can be accelerated with thermal shock on water temperature of 20°C
- Siput gonggong Laevistrombus turturella merupakan siput laut yang banyak dikonsumsi masyarakat di Provinsi Kepulauan Riau sehingga populasinya diperkirakan menurun. Upaya pelestarian siput ini perlu dilakukan salah satunya dengan budidaya. Kegiatan budidaya memerlukan ketersediaan induk matang gonad. Tujuan penelitian ini adalah menganalisis ukuran induk siput gonggong matang gonad berdasarkan panjang cangkang dan warna gonad, serta mengevaluasi pengaruh paparan suhu berbeda terhadap kecepatan penentuan jenis kelamin induk. Panjang cangkang siput gonggong diukur dengan jangka sorong, kemudian dipecahkan untuk mengamati warna gonadnya. Data dianalisis dengan student t-test. Perlakuan paparan suhu air 15°C (P1), 20°C (P2), dan 30°C (P3). Tujuh ekor induk siput gonggong dimasukkan ke dalam akuarium sesuai perlakuan, durasi waktu keluar tubuh lunak siput gonggong dari cangkang dicatat. Data dianalisis dengan uji Kruskal Wallis. Hasil penelitian menunjukkan ukuran rata-rata panjang cangkang induk siput gonggong matang gonad dari laut Madong-Tanjungpinang adalah 63,449±5,352 mm (jantan) dan 66,953±5,876 mm (betina). Penentuan jenis kelamin siput gonggong dapat dipercepat dengan pemberian kejutan suhu dengan suhu air 20°C.