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Kelimpahan Bibit Lobster di Teluk Bumbang Kabupaten Lombok Tengah Paryono Paryono; Edwin Jefri; Baiq Hilda Astriana; Ibadur Rahman; Chandrika Eka Larasati; S. S. Sukoraharjo
Jurnal Kelautan Nasional Vol 17, No 2 (2022): AGUSTUS
Publisher : Pusat Riset Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (389.892 KB) | DOI: 10.15578/jkn.v17i2.10634

Abstract

Kebijakan pemerintah membuka ekspor bibit lobster tahun 2020 disambut gembira nelayan Lombok tengah, karena mereka bisa menangkap bibit lobster kembali. Upaya mengendalikan stok bibit lobster di alam agar berkelanjutan perlu data kelimpahan bibit lobster. Penelitian ini bertujuan mengetahui kelimpahan bibit lobster di Teluk Bumbang Kabupaten Lombok Tengah. Periode penelitian mulai September 2020 hingga Februari 2021.  Titik sampling di 3 lokasi yaitu  bagian dalam,  bagian tengah dan bagian luar dari teluk Bumbang. Penangkapan bibit lobster menggunakan alat tangkap tradisional yaitu pocong. Jenis bibit lobster yang tertangkap yaitu lobster mutiara (Panulirus ornatus) dan lobster pasir (P. Homarus).  Hasil tangkapan bibit lobster paling banyak pada bagian tengah Teluk Bumbang. Tingginya kelimpahan bibit lobster di bagian tengah teluk disebabkan oleh ombak kecil, perairan relative lebih dalam, serta tidak banyak aktivitas nelayan. Terdapat fluktuasi hasil tangkapan bibit lobster pada setiap periode penangkapan. Hal ini dipengaruhi oleh tinggi rendahnya pasang surut dan suhu perairan. Pengaruh pasang surut terhadap kelimpahan bibit lobster lebih dipenagruhi efek pasang surut berupa arus dan gelombang. Suhu perairan berubah dari dingin di awal penelitian menjadi lebih hangat di akhir penelitian. Pada saat suhu berubah dari dingin ke panas (hangat) terjadi peningkatan kelimpahan bibit lobster yang signifikan.
EFFECT OF ADDITIONAL GINGER (Zingiber officinale var. amarum) ON FEED ON THE GROWTH AND SURVIVAL LEVEL OF GOLDFISH (Cyprinus Carpio) Nining Syafirah; Muhammad Marzuki; Baiq Hilda Astriana
Journal of Fish Health Vol. 1 No. 2 (2021): Journal of Fish Health
Publisher : Aquaculture Department, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (375.119 KB) | DOI: 10.29303/jfh.v1i2.530

Abstract

Goldfish is one of the most popular freshwater cultivated fish because it is one of the freshwater commodities that has economic value and is sold at a price that is affordable to all groups. Ginger is a natural ingredient that can stimulate fish growth. The purpose of this study was to determine the effect of adding ginger to feed and to determine a good dose of ginger for growth and survival rates of carp (Cyprinus carpio). This research was conducted by experimental method using completely randomized design (CRD) with 5 treatments and 3 replications. The treatments given were Treatment 1: 0 grams, without adding ginger / kg of feed (control), Treatment 2: 2.5 grams of ginger / kg of feed, Treatment 3: 5 grams of ginger rhizome / kg of feed, Treatment 4: 7.5 grams of ginger / kg of feed, Treatment 5: 10 grams of ginger / kg of feed. The results showed that the addition of ginger had no significant effect on absolute length growth, absolute weight growth, feed conversion ratio, and feed efficiency, but had a significant effect on the survival rate of goldfish (cyprinus corpio). And a good dose of ginger is in P2 treatment with a dose of 2.5 grams of ginger, because it has been able to show a good survival rate of 100%.
EFFECT OF ADDITION OF TEMULAWAK EXTRACT (Curcuma xanthorriza) ON ARTIFICIAL FEED ON GURAMI FISH GROWTH (Osphronemus goramy) Dian Ananda; Saptono Waspodo; Baiq Hilda Astriana
Journal of Fish Health Vol. 1 No. 2 (2021): Journal of Fish Health
Publisher : Aquaculture Department, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (396.63 KB) | DOI: 10.29303/jfh.v1i2.531

Abstract

The problem with gouramy cultivation was slow growth due to the short intestines of gouramy so that the absorption of feed takes longer and less. Several previous studies used temulawak in the form of flour, extract, oil which was applied to carp, tilapia, milkfish, catfish. The addition of extract, temulawak flour to the feed gave an increase in growth both in length and weight in the test fish. The purpose of this study was to determine whether or not the effect of temulawak extract on the growth of gouramy fish. This research was conducted for 45 days. This research was conducted by experimental method using a completely randomized design (CRD) with 5 treatments (P) 3 times replication (U), in order to obtain 15 experimental units. Treatment 0 Control (without temulawak extract), Treatment 1 Provision of temulawak extract with a concentration of 14%/kg feed, Treatment P2 Administration of temulawak extract with a concentration of 16%/kg feed, treatment P3 Administration of temulawak extract with a concentration of 18%/kg feed, and treatment P4 administration of temulawak extract with a concentration of 20%/kg feed. The results showed that in the P0 treatment the absolute weight gain was 0.78 grams, in the P1 treatment the absolute weight was 0.58 grams, the P2 treatment was 0.33 grams, the P3 treatment was 0.37 grams, and in the P4 treatment it was obtained The result of absolute weight gain was 0.39 grams. The results showed the absolute length increase ranged from 0.35-0.57 cm. It can be concluded that the addition of temulawak extract to the commercial feed of carp has no significant effect on absolute weight, absolute length, survival rate and feed efficiency level.
THE EFFECT OF GIVING ONION (Allium Sativum) EXTRACT TO TREAT THE SEED OF TILAPIA (Oreochromis Niloticus) BACTERIAL INFECTED Aeromonas hydrophila Ani Lestari; Nurliah; Baiq Hilda Astriana
Journal of Fish Health Vol. 1 No. 2 (2021): Journal of Fish Health
Publisher : Aquaculture Department, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (381.53 KB) | DOI: 10.29303/jfh.v1i2.532

Abstract

MAS disease (Motile Aeromonas Septicemia) is a disease caused by A. hydrophila bacteria that attack tilapia and other freshwater fish species. The use of antibotics and chemicals in the continuous prevention and treatment of this disease can damage the aquatic environment and can cause bacterial resistance to antibotics, so antibotic use becomes ineffective. The study used a Complete RandomIzed Design (RAL) with an experimental method consisting of 5 treatments and 3 repeats. Treatment in this study is (P1) without soaking garlic extract and without infected bacteria Aeromonas hydrophila, (P2) without soaking garlic extract and infected bacteria Aeromonas hydrophila, (P3) soaking garlic extract with a concentration of 1% and disinfection of bacteria Aeromonas hydrophila, (P4) immersion of garlic extract with a concentration of 1.5% and infected bacteria Aeromonas hydrophila, (P5) soaked garlic extract with a concentration of 2% and infected with Aeromonas hydrophila bacteria. The results showed that the SR value of tilapia fish in each treatment had values ranging from 0.0% to 66.7%. Relative percent survival (RPS) tilapia seeds in each treatment have values ranging from 0.0% to 66.7%. The conclusion of this study is that giving garlic extract with different concentrations has a real different influence on survival rates and relative percent survival (RPS).