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Ririn Irnawati
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INDONESIA
Jurnal Perikanan dan Kelautan
Published by Universitas Sultan Ageng Tirtayasa
ISSN : 20893469     EISSN : 25409484     DOI : http://dx.doi.org/10.33512/jpk
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Decision Sciences, Operations Research & Management Environmental Science
JPK accommodate the result of research and review of fisheries and marine, with the focus and scope : 1. Management and Technology Aquaculture 2. Fisheries Resource Management 3. Fishery Products Processing 4. Fishing Technology and Management 5. Marine Technology and Science
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Perairan
Articles 253 Documents
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APLIKASI PREBIOTIK PADA PAKAN KOMERSIAL UNTUK MENINGKATKAN KINERJA PERTUMBUHAN IKAN NILA (Oreochromis niloticus) Afrita Jayati Sudiarto; Mustahal Mustahal; Achmad Noerkhaerin Putra
Jurnal Perikanan dan Kelautan Vol 4, No 4 (2014)
Publisher : JURNAL PERIKANAN DAN KELAUTAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jpk.v4i4.170

Abstract

This research aimed to evaluate the effect of prebiotic to promote the growth of tilapia. Fish were fed four times daily in ad satiation. The Feed used were commercial feed pellet dry with 32% carbohydrates, 7% lipids and 30% proteins. The prebiotic used was extracted from sweet potato varieties sukuh. The experiment were done with three treatments and 3 replicates, namely control A (0% prebiotic), B (1% prebiotic) and C (2% prebiotic). The results showed that application of prebiotic in feed can promote better tilapia growth compared to control. The treatment with the addition of 1% prebiotics showed the best result on promoting tilapia growth, feed efficiency, bacteria population in gastrointestinal tract, apparent digestibility and nutrition retention among other treatments respectively.Keyword: prebiotic, growth performance, tilapia (Oreochromis niloticus).
Maritime Limit Conflict, Illegal Fishing and Enformance of Effort in Natuna Sea Region between Indonesia and China Gayuh Nugroho Dwi Putranto; Muhammad Zid; Mieke Miarsyah
Jurnal Perikanan dan Kelautan Vol 9, No 2 (2019)
Publisher : JURNAL PERIKANAN DAN KELAUTAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jpk.v9i2.7243

Abstract

Indonesia tries to protect sea areas to avoid illegal fishing cases and maritime boundary disputes. Illegal fishing that occurred in Natuna resulted in decreased income from the fishery side due to the existence of illegal fishing practices. Various attempts have been made by the Indonesian government to deal with illegal fishing by foreign fishermen and local fishermen. The case of illegal fishing that occurred at the end of 2019 was carried out by the Chinese state in Natuna waters which had triggered tension between Indonesia and China, which was triggered by different perceptions related to maritime boundaries where China used the nine-dash line concept that was not by UNCLOS recognized by the UN. This study aims to explain the nine-dash line concept that underlies unilateral claims to China, and the concept of UNCLOS which underlies ownership of the Natuna waters by Indonesia and efforts to enforce illegal fishing in the Natuna Islands. The study was conducted descriptively based on secondary data based on Indonesia's sovereign rights over the Natuna Islands. The results show that China's claim to Natuna based on the nine-dash lines does not form the basis of applicable international law
Variasi DNA Mitokhondria dari Ikan kakap Putih Budidaya dan Dari Tangkapan Liar Di Thailand Yusmansyah Yusmansyah; Wansuk Senanan; Uthairat Na- Nakorn
Jurnal Perikanan dan Kelautan Vol 1, No 1 (2011)
Publisher : JURNAL PERIKANAN DAN KELAUTAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jpk.v1i1.843

Abstract

Kakap Putih (Lates calcarifer Bloch) adalah salah satu ikan ekonomis penting yang benihnya dapat diproduksi Thailand. Data genetik merupakan salah satu aspek penting dalam mengatur pemijahan induk untuk pemuliaan, namun hingga saat ini informasi terkait keragaman genetiknya masih minim. Penelitian ini bertujuan mengkaji keragaman dan perbedaan genetik kakap putih pada tiga populasi hatchery dan dua populasi alam di Thailand dengan menggunakan metode gabungan antara Restriction Fragment Length Polymorphisms dan Polymerase Chain Reaction (PCR-RFLP) pada D-loop control region di DNA mitokondria. Ditemukan tujuh potongan endonuklease dari 268 sampel yang diamati. Populasi alami Chantaburi (CH) memiliki keragaman haplotipe dan nukleotida tertinggi (h = 0.6626, π = 0.0554) dibandingkan populasi lainnya: tiga populasi hatcheri yaitu Rayong (RA), Chonburi (CB) dan Nakhon Si Thammarat (NK) ) (h berkisar antara 0.2709 – 0.3227; π berkisar antara 0.0195 – 0.386) dan populasi alam Nakhon Si Thammarat (PN) (h = 0.172, π = 0.0091). Mismatch distribution analysis mengungkap kejadian bottleneck pada beberapa generasi sebelumnya di populasi alam PN dan seluruh populasi hatcheri. Analysis of Molecular Variance (AMOVA) menunjukkan 88.95% keragaman disebabkan perbedaan dalam populasi dan 11.05 % disebabkan perbedaan antar populasi. Perbedaan genetik yang signifikan terdapat pada perbedaan antar populasi alam (ΦST = 0.239, P<0.001), namun perbedaan antar populasi hatchery tidak signifikan, menunjukkan terjadi pencampuran genetik sekerabat antar satu dengan hatcheri lainnya. Hal ini karena minimnya masukkan indukan baru dari alam. Kedua hal tersebut dapat menurunkan keragaman dan perbedaan genetik pada setiap populasi hatchery dan antar populasi hatchery. Data awal penelitian ini dapat digunakan untu
Apllication of Ovaprim and Oxytocin Hormone for Gonadal Maturation and Embryogenesis of the Pomfret (Colossoma mropomum) Mustahal Mustahal; Mas Bayu Syamsunanrno; Ariq Dwi Wijanarko
Jurnal Perikanan dan Kelautan Vol 10, No 2 (2020)
Publisher : JURNAL PERIKANAN DAN KELAUTAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jpk.v10i2.9439

Abstract

The pomfret fish have been widely cultured by fish culturist in Indonesia. However, the gonadal maturation have faced the obstacles with the hormone supplies for the culturists. Therefore, the purpose of this study was to determine the dose of ovaprim and the oxytocin hormone in accelerating gonadal maturation as well the embryogenesis of  the pomfret fish by semi-natural spawning methods. The study was conducted from September to November 2019 at the Laboratory of Fish Seedling Production, at  Baros District, Serang Regency. The number of fish used was 18 fishes (12 males and 6 females), for each spawning treatment have been used 2 males and 1 female. The experiments were using a completely randomized design (CRD) consisting of 2 combinations of treatments and 2 replications. The treatments used were as follows: 0.5 ml / kg ovaprim (K), 0.5 ml / kg ovaprim + 0.25 ml / kg oxytocin (P1), 0.25 ml / kg ovaprim + 0.25 ml / kg oxytocin (P2). The results showed that the use of combination of ovaprim and oxytocin (P1 and P2) was able to stimulate the maturity and spawning of the pomfret fish. The oxytocin injection to induce the spawning have been increased the latency time and increased the fecundity of the pomfret fish. The best hormonal combination treatment in resulting the gonadal maturation and egg hatching was that of  the P2 with the fastest latency time was 614.50 ± 13.44 minutes, the fecundity was 460,134 ± 72,597, fertilization rate  was 80.28 ± 3.11% and hatching rate was 77.08 ± 0.16%.
The Escape Gap Effectiveness of Collapsible Trap to Catch Swimming Crab (Portunus pelagicus) in Banten Bay) Anggi Kurniasih; Ririn Irnawati; Adi Susanto
Jurnal Perikanan dan Kelautan Vol 6, No 2 (2016)
Publisher : JURNAL PERIKANAN DAN KELAUTAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jpk.v6i2.1103

Abstract

Swimming crab is one of an economic fisheries commodity in Banten Province. One of the fishing gear to catch swimming crabs is collapsible trap. The objective of this study is to analyze the effectiveness of escape gap on collapsible traps for catching swimming crab in Banten Bay. This research uses experimental fishing. The escape gap have 4 cm in length and 3 cm in width to release the swimming crabs with carapace width < 10 cm. This research was conducted in January-February 2015 in Banten Bay. The total 84 swimming crab consist of 40 males and 44 females. With total weight 15,556 g. The carapace width distribution in this study ranged from 6,5 to 14,1 cm. The application of escaping gap have high effectiveness to catch the legal size of swimming crab with proportion 84%.
Mapping of Mangrove Distribution and Density in Eastern Coastal of Biak Island, Papua Using Landsat 8 Satellite Imaginary Vivia Tablaseray; M Rizky Ardhy Pairin; Nadia Fakdawer; Baigo Hamuna
Jurnal Perikanan dan Kelautan Vol 8, No 1 (2018)
Publisher : JURNAL PERIKANAN DAN KELAUTAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jpk.v8i1.3682

Abstract

As the one of coastal resource, mangrove has socio-economic, and physical functions. Mangrove distribution and density can be identified by using remote sensing technology. Satellite images of Landsat are the most widely used for mangrove mapping. This research was conducted to determine of the mangrove distribution and density in eastern coastal of Biak Island, Papua using Landsat 8 OLI satellite imaginary, acquisition date at June 30, 2015. This research was conducted from June to August 2017, covering field data acquisition and satellite image processing. The step of mangrove identification was done by using a composite 564 RGB band, then the separation of mangrove, non-mangrove and waters objects using supervised classification method. The next step is to analyze the density of mangroves by using the formula of Normalized Difference Vegetation Index (NDVI). The result of research showed that mangrove area in eastern coastal of Biak Island was about 144.81 hectares, where the rare density 89.64 hectares, medium density 26.19 hectares and dense density 28.98 hectares. The low area of mangrove were generally caused by anthropogenic factors such as logging, changes over the function of mangroves and effect of tsunami 1996.
Applicaton of Collapsible Mud Crab with Escape Gap in Laboratory Scale Adi Susanto; Ririn Irnawati
Jurnal Perikanan dan Kelautan Vol 2, No 2 (2012)
Publisher : JURNAL PERIKANAN DAN KELAUTAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jpk.v2i2.23

Abstract

Use environmentally unfriendly mud crab fishing technology threat sustainability.  Catching crab is more environmentally friendly can be done with the installation of escape gap in collapsible trap. Escape gap use to escape not economic mud crab.  This study aims to determine the shape and size of escape gap and more effective installation position for use on collapsible traps. The results showed that the rectangle escape gap with dimensions 60x36 mm can carry a mangrove crab with carapace width <70 mm. The installation position of the most effective escape gap is on the side under the funnel with crab escape frequency percentage of 53%. Keyword: fishing technology, collapsible trap, escape gap, mud crab
Back Matter Volume 9 Nomor 1 (Juni 2019) Redaksi JPK
Jurnal Perikanan dan Kelautan Vol 9, No 1 (2019)
Publisher : JURNAL PERIKANAN DAN KELAUTAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jpk.v9i1.7081

Abstract

Front Matter Volume 10 Nomor 1 (Juni 2020) Redaksi JPK
Jurnal Perikanan dan Kelautan Vol 10, No 1 (2020)
Publisher : JURNAL PERIKANAN DAN KELAUTAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jpk.v10i1.9591

Abstract

Live Feed Combination for knife fish -Chitala lopis) Mas Tri Djoko Sunarno; Mas Bayu Syamsunarno
Jurnal Perikanan dan Kelautan Vol 5, No 2 (2015)
Publisher : JURNAL PERIKANAN DAN KELAUTAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jpk.v5i2.1062

Abstract

This study in aiming to evaluate response of knife fish to various life fish species as a diet sources in controllable tank. After adapting to experimental condition, 36 tested fish collected from nature of 326.6 ± 184.1 g in individual weight were randomly stocked in 7 fiber tanks at a rate of 4-5 fish per tank and fed on life fishes in fingerling size at different combinations (common carp, tilapia, shrimp, carp+tilipia, tilapia+shrimp, carp+tilapia+shrimp) every 6 hours for 5 days of culture period. The result showed than knife fish prefer combination life food of common carp and tilapia, and then followed by common carp, tilapia and shrimp. Night was feeding time for knife fish.

Page 15 of 26 | Total Record : 253

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