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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 12 Documents
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Search results for , issue "Vol 10, No 2 (2020)" : 12 Documents clear
The Effect Of Ketapang Leaves Extracts (Terminalia Catappa) In Inhibiting The Growth Of Bacteria Edwarsiella Tarda On In Vitro Test Maryani Maryani; Shinta Sylvia Monalisa; Rekonsili Soritua Panjaitan
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.v10i2.9218

Abstract

This study was conducted to find out the effectiveness of ketapang (Terminalia catappa) leaves extracts, as well as determine the best dose of the extract of ketapang leaves (Terminalia catappa) in inhibiting the growth of bacteria Edwardsiella tarda. Method that used in this research is descriptive method with 6 treatments and 3 replications, such as giving the extracts of ketapang leaves as much 3 g/60 ml, giving the extracts of ketapang leaves as much 4.5 g/60 ml, giving the extracts of ketapang leaves as much 6 g/60 ml, giving the extracts of ketapang leaves as much 7.5 g/60 ml, giving the chloramphenicol 500 mg as a positive control and giving the aquades as a negative control. This research was conducted at the Testing Laboratory of Fish Quarantine Station, Quality Control and Safety of Fishery Class I Palangka Raya for 3 months from January to March 2017. The result of this research is the inhibition of a test contained in the extract of ketapang leaves (Terminalia catappa) at the dose of 3 g/60 ml; 4.5 g/60 ml; 6 g/60 ml and 7.5 g/60 ml classified in the strong category (10-20 mm) in inhibiting bacteria Edwardsiella tarda. Extract of ketapang leaves (Terminalia catappa) at a dose of 6 g/60 ml more effective as bacteriostatic be based on the average of bigger diameter inhibition zone, it is 15.33 mm than the treatment of others ketapang leaves extracts (Terminalia catappa). In the test MIC (Minimum Inhibitory Concentration) treatment with a dose of 3 g/60 ml was able to inhibit bacterial growth Edwardsiella tarda. The disc test and MIC (Minimum Inhibitory Concentration) test showed that the extracts of ketapang leaves (Terminalia catappa) effective as bacteriostatic, it has seen from its ability to inhibit the growth of bacteria Edwardsiella tarda.
Study of Tidal Characteristics in The South and North Coastal of Sumenep Regency, Madura Luhur Moekti Prayogo; Leni Suspidayanti
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.v10i2.9385

Abstract

Sumenep is one of Madura's regency, which has many islands with a wealth and diversity of natural resources, especially in its marine and coastal areas. With many islands owned, sea transportation in Sumenep is of great importance in the regency. One of the crucial aspects that must be considered related to this transportation is tidal information. This study aims to determine the tidal characteristics in the South and North Coast of Sumenep Regency using the Least Square method. The tide data used in February and September 2020 were obtained from the Geospatial Information Agency (BIG) with an observation interval of one hour. This time was chosen because it represents monsoons' occurrence in Indonesia in the annual season, namely the dry and rainy seasons. The results of this study indicate that the southern coastal area (Giligenting District) has a mixed tidal type, tends to be semi-diurnal with Formzahl numbers of 0.86 and 1.29 (0.25 <F £ 1.5). In comparison, the North coast (Dasuk District) has a Diurnal tidal type with Formzahl numbers of 3.64 and 4.30 (F > 3.0). The different tides are due to the sampling's location representing different geographical conditions, namely open waters (North Coast) and closed waters (Pesisir Selatan). The elevation parameters obtained still need supporting data such as waves, currents, and bathymetry used by policymakers for safety in using sea transportation. 
The Study of Formaldehyde and Borax Content on Salted Fish from Several Markets in Tembilahan Indragiri Hilir, Riau Putri Wening Ratrinia; Sumartini Sumartini; Lisa Bonita
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.v10i2.9583

Abstract

Fisheries and marine sector is one of the potential sectors in Indragiri Hilir district, Riau. Local fishermen make efforts to preserve the catch by salting it. Although salt can extend product shelf life, there are still many salted fish producers that add formaldehyde and borax to reduce production costs. The addition of formaldehyde and borax is carried out with the aim of extending product shelf life so that producers do not lose. The aim of this study was to determine the presence of formalin and borax content in salted fish products in several markets in Tembilahan. The sampling method in this study was simple random sampling by taking three different samples of salted fish, namely salted belukang, salted kembung, and salted gulama in three different markets in Tembilahan. Samples were tested for formalin and borax using test kit. The results of the qualitative formalin content test showed that from 9 samples of salted fish from several Tembilahan markets, there were 5 positives samples containing formaldehyde. The five samples were salted salted fish belukang, salted fish kembung, salted fish gulama from central market, and salted fish gulama and salted fish kembung from Parit 11 market. In the other hand, the salted fish samples were also tested qualitatively for borax content test. The qualitative test results of borax on 9 samples from several markets in Tembilahan showed no color change on the turmeric paper after immersion in the sample solution. This indicates that all salted fish samples is negative for borax content.
Types of Sex And Development of Gonad Protoginic Rice Grouper (Cromileptes altivelis) After Hormone Stimulation Abdul Zahri; Melissa Justin Renjaan; Farida Farida
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.v10i2.7123

Abstract

This study aims to analyze the effect of estradiol (E2) and methyltestosterone (MT) combined with hCG on the composition of sex and the gonad development of protogynous humpback grouper (Cromileptes altivelis). The fish experiment 13±1,5g of body weight in the nursery phase. Treatment with a estradiol solution of 3 mg mL–1+ hCG 20 IU mL–1(CE), MT 3mg mL–1+ hCG 20 IU mL–1(CM), estradiol 3 mg mL–1 (E), MT 3 mg mL–1 (M) and 9 mg mL–1 NaCl to control (K). Hormone with dose 1 mL kg–1 was injected on dorsal fin base, with frequency of six times and periode of two weeks. The fish are kept in a 500 liters fiberglass container with a calm water system for 11 months. Fish were fed pellets with protein content of 46% twice daily. The study used a completely randomized design with one treatment factor, the hormone and its combination. Giving hormones with combination, i.e. treatmenth CE and CM was effective to increase the percentage of gonad development with GSI value 0.4161±0.0978% and 0.4161±0.1055%, whilw HSI on CE 0.6456±0.0419% and CM 0.5797±0.1069%  The gonadal histologic observation showed transition pattern and sex change from female to male at treatment M and CM. The MT hormone is able to stimulate masculinization and its performance is more effective when combined with hCG, 90% from sample population. The development of female gonads in the phases of oogonia and male of masculinization result in the phase of spermatogonia.
Analysis of Seagrass Condition Thalassia hemprichii in Kabung Island Waters, Bengkayang Regency, West Kalimantan Mega Sari Juane Sofiana; Ikha Safitri; Risko Risko; Karina Elwanda Saputri; Taufik Nurcahyanto
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.v10i2.9497

Abstract

Seagrass is one of the important ecosystems and habitats for marine organisms. Thalassia hemprichii is one of the seagrass species in Kabung Island Waters. Studies on seagrass ecosystem conditions must be carried out as initial information for integrated aquatic management. Analysis of seagrass ecosystem conditions includes density and coverage percentage. Seagrass data was collected using the line transect method with a length of 50 cm and quadrants transect of 1 m x 1 m perpendicular to the coastline toward the sea. The density of T. hemprichii at Stations I and II were 50.83 and 68.27 ind/m2, respectively. The average coverage percentage at Stations I and II were 5.05% and 5.85%, respectively. These ecosystem conditions could be categorized as rare density. Physico-chemical parameters of the waters of Kabung Island including temperature, salinity, pH, dissolved oxygen (DO), water visibility, depth, and current have been carried out. The Kabung Island waters have a salinity of 32-33‰, temperature 29-30oC, and pH 8.0-8.4. The depth and water visibility of the seagrass habitat was 0.6 m. The current velocity was 0.07-0.29 m/s. These parameters were optimum conditions for seagrass life. However, the dissolved oxygen in Kabung Island was low at 2.2-4 mg/L.
Design Appropriateness of Boat Lift Net Based on Archipelagic Fishing Port of Karangantu Mizan Muhammad Toyyibun
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.v10i2.10064

Abstract

Boat lift net fishing fleets in Archipelagic Fishing Port of Karangantu were built traditionally and does not have design drawings. The boats are doing its fishing activities as usual although hadn’t preliminary design. This research aims at analyzing the design appropriateness of boat lift net compliment to the static gear vessel in Indonesia. The survey method with purposive sampling is applied in the research. The research is done in Archipelagic Fishing Port of Karangantu on July until October 2019 with identification the compartments of the boat and direct measurements of the boat. The result shows that the main dimensions ratio and coefficient of fineness of boat lift net has been appropriate as static gear vessel for fishing activities. The hull form of the boats are round bottom and U-bottom. The stern of boats is flying deck added-transom, and using V-type raked bow.
Front Matter Volume 10 Nomor 2 (Desember 2020) Redaksi Jurnal Perikanan dan Kelautan
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.v10i2.10970

Abstract

Comparison of Admiralty and Least Square Methods for Tidal Analysis in Mandangin Island, Sampang Regency, East Java Luhur Moekti Prayogo
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.v10i2.10215

Abstract

The existence of hydro-oceanographic information such as tides plays an essential role in supporting coastal areas' transportation. This study aims to compare the tidal analysis results in Mandangin Island, Sampang Regency, East Java using the Admiralty and Least Square methods. The data used in this study are tidal data for May and November 2020, which represent the dry and rainy seasons in Indonesia. Tide data are obtained from the Geospatial Information Agency (BIG) at one-hour intervals. From this research, it can be concluded that the tidal types generated from the Admiralty and Least Square methods in Mandangin Island, East Java, are mixed types with semidiurnal tendencies. The use of the Admiralty and Least Square methods results in the difference in the harmonic components' amplitude values. The M2 and O1 components have an enormous difference in May 2020, with amplitude values of 0.0003 and 0.0002, and the difference in the amplitude values of the harmonic components also occurred in November 2020. The M2 component has the most significant difference compareto other components, namely 0.0011. The components O1, P1, and MS4 in the same month result in a relatively small difference in amplitude values with values of 0.0002, 0.0002, and 0.0001. For further tidal research, data corrections should be considered, a nodal correction to produce more accurate observational data. This correction can use the T_Tide program with constants obtained from the analysis process.
KEBIASAAN MAKANAN IKAN DI SITU GONGGONG, KABUPATEN PANDEGLANG, BANTEN Neng Muliah; Forcep Rio Indaryanto; Ani Rahmawati; Muta Ali Khalifa; Desy Aryani; Erik Munandar
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.v10i2.11167

Abstract

Gonggong Lake is one of the lentic waters, located at Cipicung village Cikedal District Pandeglang Banten. Gonggong Lake is used as a source of water for irrigation rice fields, O. tilapia culture, tofu production, oncom, social activity, and fishing. This causes made the availability of natural food and resulted in the change balance of ecosystems in the waters. Natural fish foods are the main factor needed in the process of growth, reproduction, and survival of fish. Fish food habits in nature are important to be studied as an effort to manage fishery resources. The study aimed to determine to identify fish food habits in Gonggong Lake. The study was conducted from July to August 2017 at 4 stations, i.e. 1) inlet I; 2) inlet II; 3) center of the lake, and 4) outlet. Fish and food habits identification was conducted at the laboratory of aquaculture, University of Sultan Ageng Tirtayasa. The results of this study in Gonggong Lake, there are 5 species of fish caught namely Oreochromis niloticus, Barbonymus gonionotus, Trichogaster trichopterus, Channa striata, and Glossogobius giuris. Food habits in Gonggong Lake  are dominated by herbivorous fish with main food of phytoplankton and plant parts. Natural foods are dominated by phytoplankton consist of the Chlorophyta, Chrysophyta, Cyanophyta, Cryptophyta, and Euglenophyta groups.
Back Matter Volume 10 Nomor 2 (Desember 2020) Redaksi Jurnal Perikanan dan Kelautan
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.v10i2.10978

Abstract

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