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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 8, No 2 (2018)" : 12 Documents clear
Evaluation of Fermentation on Moringa Leaves (Moringa oleifera) as Raw Material on Feed of Tilapia (Oreochromis niloticus) ) Achmad Noerkhaerin Putra; Citra Widia Ningsih; Fitriana Sari Nurani; Mustahal Mustahal; Forcep Rio Indaryanto
Jurnal Perikanan dan Kelautan Vol 8, No 2 (2018)
Publisher : JURNAL PERIKANAN DAN KELAUTAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jpk.v8i2.6726

Abstract

Moringa leaves is a potential ingredient for raw material of tilapia feed, which a high protein content of 25%. However, moringa leaves has a high fibre and antinutritional factors. The aims of this study was to evaluate the fermentation of Moringa leaves (Moringa oleifera) as a raw material feed on tilapia (Oreochromis niloticus). This study was conducted for eight months at Laboratory of Aquaculture, Department of Fisheries, Faculty of Agriculture, University of Sultan Ageng Tirtayasa. The study consisted of 4 treatments of feed with different fermentations, namely: A: reference feed 70% + Moringa leaves meal 30%, B: reference feed 70%+fermented Moringa leaves meal with Rhizopus oligosporus 30%, C: reference feed 70%+fermented Moringa leaves meal with Saccharomyces cereviceae 30%, and feed D: reference feed 70%+fermented Moringa leaves meal with Aspergillus niger 30%. The results showed that feed with Moringa leaves fermentation using A. niger resulted in the best growth on tilapia compared to other treatments. Fermentation with A. niger and R. oligosporus on Moringa leaves produced the best nutrient digestibility value compared to other treatments. Moringa leaves fermented with A. niger, S. cerevisiae and R. oligosporus had no effect on physiological processes on tilapia, as shown by hematological parameter values that were within the normal range. Moringa leaves fermented with Aspergillus niger can be used as a raw material for tilapia feed.
Health Conditions and Spatial Variations in Rhizophora apiculata Population Characteristics in the Petroleum Industry Area and Non-Industry in Riau Province Syahrial Syahrial; Dietriech G Bengen; Tri Prartono; Bintal Amin
Jurnal Perikanan dan Kelautan Vol 8, No 2 (2018)
Publisher : JURNAL PERIKANAN DAN KELAUTAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jpk.v8i2.6643

Abstract

The current marine environment has begun to be polluted and will directly affect the biota around it. The study of health conditions and spatial variations in the characteristics of the population of Rhizophora apiculata was carried out in the mangrove ecosystem around the oil and non-industrial areas of Riau Province. This study aims at a baseline for evaluating mangrove management in Riau Province. Sampling is carried out using line transects drawn from the reference point (outermost mangrove stands) in a direction perpendicular to the coastline to the mainland and sample plots made with a size of 10 X 10 m2. Samples of leaves, fruits, and flowers are taken randomly based on the sample plots made. Then preserved with 70% alcohol and labeled. The preserved samples were taken to the laboratory to measure morphometrics and calculate the number of stomats. The results showed that the population of R. apiculata at all stations was in an unhealthy condition. In addition, individual competition and adaptability possessed by the population of R. apiculata are very low, ranging from 09.53 - 17.27% and illustrating more group growth and very high competition among individuals. Furthermore, the discriminant analysis shows that the morphometric variables that most characterize the population of R. apiculata in the oil industry with non-industrial areas are the length of the stem. Based on the results of PCA analysis, the variables that most determine the poor health of the population of R. apiculata are the parameters of Pb heavy metals, pH, temperature and DO waters.
LC50-48 hours and pH tolerance to seeds Kurumoi Rainbow Fish (Melanotaenia parva) Tutik Kadarini
Jurnal Perikanan dan Kelautan Vol 8, No 2 (2018)
Publisher : JURNAL PERIKANAN DAN KELAUTAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jpk.v8i2.6671

Abstract

The value of pH concentration on water quality influences the resistance or survival of kurumoi rainbow fish (Melanotaenia parva). Rainbow fish in habitat (natural) live in a pH range of 6.8-8.5 and in cultivation activities the pH range is unknown. At a concentration of pH <7 including acid pH and > 7 including a moderate pH 7 neutral pH. The direct effect of pH will affect water balance as a fish medium and will die when the pH changes extreme or changes rapidly. The aim of the study was to determine the Lethal Concentration (LC5048 hours) and Tolerance both at acidic and basic pH. The test fish used were Kurumoi rainbow fish with a total length of 2.1 ± 0.25 cm and a weight of 0.10 ± 0.05 g of ± 450 tails. There are two experiments, namely the toxicity test of LC50-48 acid pH and toxicity test of LC50-48 alkaline pH. For toxicity tests LC50-48 acid pH consisted of 7 treatments and three replications at different pH levels, namely A) pH 6.0 (control); B) pH 3.50; C) pH 3.96; D) pH 4.48; E) pH 5.07; F) pH 5.74; and G) pH 6.50. Whereas the toxicity test of LC50-48 alkaline pH consisted of 7 treatments and three replications, namely A) pH 7.0 (control); B) pH 8.5; C) pH 9.2; D) pH 9.9; E) pH 10.7; F) pH 11.6 and G) pH 12.5. The parameters observed during the study were ecording dead fish at hours to (0; 24; 48; 72 and 96) and toxicity of LC50-48. The results showed that the toxicity of LC50-48 pH to Kurumoi rainbow fish was at acidic pH of 4.70 and tolerance ranged from 5.07 to 6.50 for 96 hours while alkaline pH was 10.7 and tolerance ranged from 8.5 to 9.9 for 96 hours.
Sosio-Ecological Dynamic of Small Scale Fisheries in Prigi Trenggalek Darmawan Ockto Sutjipto
Jurnal Perikanan dan Kelautan Vol 8, No 2 (2018)
Publisher : JURNAL PERIKANAN DAN KELAUTAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jpk.v8i2.6727

Abstract

Small scale fishing is a very important part of the fisheries sector. Not only play an important role in enhancing food security, but also becomes an absorbent for workers without the need for educational. Actors in the small-scale fishery, as defined by Law 45 of 2009, are fishermen who fish their daily needs with the largest size of 5 (five) Gross Register Tonnes (GT) of fishing boats. The fishermen of Prigi are dominated by small fishermen, where the fleet is no larger than 5 GT. The number of small-scale fishing gear in Prigi exceeds 60% of the total gear. The dominance of small-scale fisheries promotes good management with long-term goals, namely the sustainability of fisheries. Today's management of fisheries management has shifted from conventional management to community-based management. In order to support the community-based management of fisheries management, various information about the community, which is the policy objective, is needed. To this end, small-scale fisheries research in Prigi and strategies for the adaptation of the extended fishery fisheries were carried out. The method used is the snowball sampling method and the calculation of the diversity of catching resources. Fishermen who are the subject of the research are small-scale fishermen who operate ships under 5 GT. The gear is stretch fishing, gillnets and tonda fishing rods. There are small fishermen in Prigi who have different types of gear that are used at that time depending on the season of the fish. The selection of fishing gear by fishermen is likely to be caused by different expertise, skills and experience of fishermen in the operation of fishing gears. In addition, the capital held by fishermen to produce fishing gear and the economic level of the fish caught will also likely affect the fishers in choosing the type of fishing gear used each day. The adaptation strategies of fishermen to unpredictable catches are divided into two groups, namely the catch strategy and the search for alternative sources of income.
Allocative Efficiency of Production Input of Pacific White Shrimp Farming in Grabag District, Purworejo Regency, Central Java Gama Dian Nugroho; Masyhuri Masyhuri; Irham Irham
Jurnal Perikanan dan Kelautan Vol 8, No 2 (2018)
Publisher : JURNAL PERIKANAN DAN KELAUTAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jpk.v8i2.6644

Abstract

This study aims to determine the factors that affect the productivity of white shrimp farming business, allocative efficiency and profit of white shrimp farming in Grabag District, Purworejo Regency, Province of Central Java. The method used in this study was descriptive analysis. Selection of the study sample was done by purposive sampling that was farmer of white shrimp in Grabag District with total respondent in this study were 51 people. Production variables in this study were shrimp seed, feed, probiotics, lime, labour, farmer age, farmer education and farmer's experience. The analytical method used in this study was linear regression from Cobb-Douglas production function, to determine the factors that influenced the productivity of white shrimp farming business so that it could analyze the allocative efficiency, besides the profit analysis. The result of the analysis showed that: (1) the factors that influenced the productivity of white shrimp farming were feed, probiotics and farmers' experience, (2) the use of feed production and probiotic factor was not allocatively efficient so its use should be increased, (3) Average profit of white shrimp farming business was 996.116.057 IDR with average of pond area of 7.011,76 m2 / farmer so that average of each farmer got profit 142.063,63 IDR/m2/year.
The Effect of Various Probiotics in Sangkuriang Cat Fish (Clarias gariepinus) on Health Status and Performans Production Anhar Faisal Fanani; Sulis Anjarwati; Nurul Fajrih
Jurnal Perikanan dan Kelautan Vol 8, No 2 (2018)
Publisher : JURNAL PERIKANAN DAN KELAUTAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jpk.v8i2.6673

Abstract

Probiotics are very important for cultivation because of their role in improving the health status of fish, increasing the body's resistance to disease, growth rate, improving intestinal morphology and balance of the microflora. The study aimed to compare commercial probiotics with probiotics from fermented milk using kefir seeds in an effort to improve health, growth rate and efficiency of sangkuriang catfish feed. The research material used 5-7cm long sangkuriang catfish as many as 400 tails. The study used a completely randomized design (CRD) with 4 treatments and 5 replications, namely P0:Control (feed without addition of probiotics), P1: Feed + 5% Probiotics A (King Grameh), P2: Feed + 5% Probiotics B (Em4), P3: Feed + 5% Probiotics C (Kefir). Each experimental unit consisted of 20 fish. The parameters observed in this experiment were growth rate, FCR and feed efficiency. Treatment with various types of probiotics has a significant effect (P <0.05) on FCR, feed efficiency, and growth rate. However, the FCR in treatments T1 and T2 did not show significant differences, and on feed efficiency and growth rate on T1 were not significantly different. The conclusion of this study is that the provision of kefir probiotics is able to show better production results.
Identification of Bacteria Aeromonas Hydrophila in The Fish Comodites Transported to Sumatera Island Through Port of Merak – Banten Ishaaq Saputra; Forcep Rio Indaryanto
Jurnal Perikanan dan Kelautan Vol 8, No 2 (2018)
Publisher : JURNAL PERIKANAN DAN KELAUTAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jpk.v8i2.6646

Abstract

Aeromonas hydrophila is one of the pathogenic bacteria existed in Indonesia and have negative impact on aquaculture. The high mobility of transported fish commodities through Merak Port also increases the potential fish diseases outbreak carried from Java to Sumatera Island, included A.hydrophila bacteria. The aim of this research was to evaluate the frequency of A.hydrophila found in fish transported through Merak Port. This research was done by collecting data series from 2014 to 2016 at Fish Quarantine and Inspection Agency of Merak. Results indicated that A. hydrophila dominate among other bacteria (31.37%). However, trend of this bacteria decreased by the time with up to 56.9%. This results can be used as the basic information of prevention tool/mitigation action to prevent the Motile Aeromonas Septicemia (MAS) disease outbreak caused by A. hydrophila.
Kover Belakang Volume 8 No.2 Desember 2018 Hery Sutrawan Nurdin
Jurnal Perikanan dan Kelautan Vol 8, No 2 (2018)
Publisher : JURNAL PERIKANAN DAN KELAUTAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jpk.v8i2.6676

Abstract

Trophic State of Cibanten Watershed Muta Ali Khalifa; Forcep Rio Indaryanto
Jurnal Perikanan dan Kelautan Vol 8, No 2 (2018)
Publisher : JURNAL PERIKANAN DAN KELAUTAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jpk.v8i2.6659

Abstract

Cibanten watershed upstream is from Karang Mount (one of that is shallow lake Cibanten water springs), flow in Serang City and the downstream at Banten Bay. From upstream until downstream, Cibanten watershed used by various anthropogenic activities where potentially to increasing trophic state of the waters. This research aimed to evaluate trophic state of Cibanten watershed. Research conducted at April – Mei 2018. Water sample took and measured at three different location, upstream (code: Hu), Central (code: T) and downstream (code: Hi). Water parameters where in-situ measurement was water depth, temperature, secchi depth, water colour, pH, dissolved oxygen and salinity (special for downstream). Water sample analysed at Aquaculture Laboratory of UNTIRTA, the water parameter was phosphate and chlorophyll-a. Trophic state of Cibanten watershed analysed with Trophic State Index (TSI). The result from upstream of Cibanten watershed categorized as mesotrophic, with maximum secchi depth until water bottom and existed some water plant. In the central and downstream of Cibanten watershed categorized as light eutrophic. The significant different between upstream, central and downstream of Cibanten watershed is secchi depth. Low secchi depth at central and downstream due to water turbidity, shown by water colour is yellowbrown that assumed come from suspended solid contents.
Waste Disposal Rate of Small Fishing Vessel ( < 5GT) in PPN Karangantu Ani Rahmawati; Hery S Nurdin
Jurnal Perikanan dan Kelautan Vol 8, No 2 (2018)
Publisher : JURNAL PERIKANAN DAN KELAUTAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jpk.v8i2.6725

Abstract

The research was conducted to know waste disposal for small fishing vessel (< 5GT) in PPN Karangantu. Research is done in August until November at PPN Karangantu. The aim for the research is analizing waste disposal rate of small fishing vessel (<5GT) at PPN Karangantu. Methods used in research is the survey method and laboratory analysis. Waste disposal a ship were analysed in the water out of a ship and waters in the area of a ship are docked. The parameter that is a ammonia, magnesium, copper , zinc , phenol , oils and fats. The ammonia in waters higher than the ammonia on a ship waste water. Magnesium, copper, zinc, fatty oil and phenol inversely proportional to the waste water ammonia of value in a ship is higher than in waters

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