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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis JOURNAL OF COASTAL DEVELOPMENT PENA AKUATIKA : JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Restiana Wisnu Aryati
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Library & Information Science Social Sciences

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CULTURE OF EMPEROR SNAPPER Lutjanus sebae Regina Melianawati; Restiana Wisnu Aryati
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 4 No. 1 (2012): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (186.259 KB) | DOI: 10.29244/jitkt.v4i1.7808

Abstract

Emperor snapper Lutjanus sebae is one of marine fishery commodities with high economic value, therefore capture rate of this fish is very high. To maintain its sustainability in nature, the culture of this species should be done in proper manner to support their conservation. This study was aimed to determine the culture technology of emperor snapper L. sebae. The eggs for this study was taken from wild broodstocks that have been domesticated in concrete rearing tank. Larval rearing was done in 500 liter polyethylene tank placed in hatchery. Phytoplankton Nannochloropsis oculata was used during larval rearing period. Larvae was fed with zooplanktons such as rotifer Brachionus rotundiformis and copepod Tisbe holothuriae in the beginning of rearing and artemia starting in day 16. Observed parameters were absorption of endogenous energy, preferrence of food, larval growth and survival rate. The result indicated that total length of newly hatched larvae were 2,44-2,63 mm, while yolk sac and oil globule were 179x10-3 - 183 x10-3 mm3 and 0,66x10-3 - 0,67x10-3 mm3, respectively. Yolk sac was absorbed at 60 hours after hatching, while oil globule almost totally absorbed at 80 hours after hatching. Live food rotifers were dominantly preferred by larvae until 10 days old, while copepods and artemia were preferred after 12 and 16 days. Larval rearing period was 22-29 days at water temperature 28.5-30.0°C. Survival rate of larvae were between 1.5 until 2.1%, while juveniles were 84.00-100.00%.Keywords: Emperor snapper, L. sebae, culture technology
APPLICATION OF COPPER OXIDE PAINTS AS PREVENTION FOR MACROFOULING ATTACHMENT ON A MARINE FLOATING NET CAGE Sri Rejeki; Titi Susilowati; Restiana Wisnu Aryati
JOURNAL OF COASTAL DEVELOPMENT Vol 13, No 3 (2010): Volume 13, Number 3, Year 2010
Publisher : JOURNAL OF COASTAL DEVELOPMENT

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (234.3 KB)

Abstract

Macrofouling is one of the major problems on a marine net cage culture. The attachment of macrofouling could cover the net cage and thus reduce the water circulation in the cage. Application of copper oxide paints may be able to solve that problem.  A field experiment with Completely Randomizes Design was applied with 9 treatments: paint without biocide; paints contained: 5% Copper Oxide; 10% Copper Oxide; 1% Chlorothalonil; 1% Chlorothaloni + 5% Copper Oxide; 1% Chlorothaloni + 10% Copper Oxide; 1% Zinc Omadine; 1% Zinc Omadine + 5% Copper Oxide; 1% Zinc Omadine + 10% Copper Oxide, each treatment was replicated 3 times. The research was done on July – September 2007 at Hanura Bay Lampung. Data of the abundance and diversity of macrofouling were collected weekly. The results showed that the application of copper oxide paints affected the macrofouling attachment significantly (P < 0, 01). The best result was antifouling paints contained Copper Oxide, and combination between Copper Oxide with Chlorothalonil and Zink Omadine.  However, from the economical point of view, paint with 5% Copper Oxide could be suggested for preventing macrofouling attachment on the marine net cage.    
PENGARUH LETAK WADAH BUDIDAYA KURUNG DASAR DAN KURUNG LEPAS DASAR TERHADAP PERTUMBUHAN DAN KELULUSHIDUPAN KEPITING BAKAU (Scylla serrata) Manggala Bintang Idatra; Sri Rejeki; Restiana Wisnu Aryati
Pena Akuatika Jurnal Ilmiah Perikanan Dan Kelautan Vol 17, No 2 (2018): PENA AKUATIKA JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Fakultas Perikanan Universitas Pekalongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (546.751 KB) | DOI: 10.31941/penaakuatika.v17i2.653

Abstract

ABSTRAK Kepiting bakau (Scylla serrata) merupakan salah satu sumber daya perikanan bernilai ekonomis penting. Upaya produksi budidaya kepiting bakau sudah cukup lama dilakukan dan dikembangkan, tetapi masih terdapat beberapa permasalahan, salah satu permasalahan yang ada yaitu pada aspek penerapan metode pada wadah budidaya. Umumnya terdapat dua jenis sistem peletakkan wadah budidaya kepiting bakau (S. serrata) yaitu letak wadah budidaya pen culture (kurung dasar) dan karamba apung (kurung lepas dasar), namun dari kedua jenis sistem peletakkan wadah tersebut belum diketahui yang sifatnya memberikan optimalisasi dan stabilitas dalam aspek pertumbuhan dan sintasan. Tujuan dari penelitian ini adalah mengetahui pengaruh letak wadah budidaya kurung dasar dan kurung lepas dasar terhadap pertumbuhan dan kelulushidupan kepiting bakau (S. serrata), serta mengetahui letak wadah budidaya yang terbaik untuk meningkatkan pertumbuhan dan kelulushidupan kepiting bakau (S. serrata). Penelitian ini menggunakan 2 perlakuan (perlakuan A= letak wadah budidaya kurung dasar, dan B= letak wadah budidaya kurung lepas dasar) dengan 6 pengulangan. Hewan uji yang digunakan adalah kepiting bakau (S. serrata) dengan bobot awal pemeliharaan  ±80 g/ekor dengan padat penebaran 4 ekor/m2. Penelitian dilaksanakan selama 30 hari (1 bulan) yaitu pada 18 Juni sampai 18 Juli 2017. Hasil penelitian menunjukkan bahwa perlakuan letak wadah budidaya kurung lepas dasar (perlakuan B) berpengaruh nyata (p-value<0,05) terhadap bobot mutlak (rerata±SD = 30,64±2,53 g) dan pertumbuhan relatif (rerata±SD = 1,28±0,19 g), namun tidak berpengaruh nyata terhadap kelulushidupan kepiting bakau (S. serrata). Kualitas air pada media pemeliharaan terdapat pada kisaran yang layak untuk pemeliharaan hewan uji. Kata kunci: Kepiting Bakau (Scylla serrata), Wadah Budidaya, Pertumbuhan, kelulushidupan.ABSTRACT Mud crab (Scylla serrata) is high-valuable fishery commodity and preferable-food in the community. The production of mud crab is long enough to do and be developed, but there are still some problems, wich is the aspects of the application of cultivation methods. It is commonly known that mud crab culture impelements 2 kind of cage location settings, they are pen culture (bottom) and floating cage (off bottom), but there is lack of information for the suitable one.The purpose of this research is to know the influence of bottom cage and off bottom cage on growth and survival rate of mangrove crab (S. serrata), and to know the best one of cultivation cage location to increase growth and survival rate of mud crab (S. serrata). This research applied 2 treatments (Treatment A was bottom cage and Treatment B was off bottom cage) with 6 replications. The initial weight average and culture density of mud crab was 80 g/ind and 4 ind/m2. The study was conducted for 30 days (1 month) it is on 18 June to 18 July 2017. The result showed that Treatment B (off bottom cage) was significantly different (P<0,05) towards its absolute weight growth value (30,64±2,53 g) and relative growth rate (1,28±0,19 g/day) and yet it was not significantly different (P>0,05) with its survival rate value. The water quality of the mud crab culture was in recommended average value.  Keywords: Mud crab (Scylla serrata), Cage, Growth, Survival Rate.
Co-Authors Manggala Bintang Idatra Regina Melianawati Sri Rejeki Titi Susilowati