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<![CDATA[Improving the Quality of Smooth Anchovy Nugget (Stolephorus sp) with the Addition of Sajiku Flour ]]>
<![CDATA[Nurainy Kaliky]]>
<![CDATA[ Jurnal Perikanan dan Kelautan Vol 28, No 1 (2023): February ]]>
Publisher : <![CDATA[Faculty of Fisheries and Marine, Universitas Riau ]]>
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DOI: 10.31258/jpk.28.1.51-55
<![CDATA[Anchovies (Stolephorus sp) are fish that have important economic value even though they are small. This fish is rich in nutritional content and has a savory and delicious taste when processed into food. This fish is very liked by various groups even though it has small in size and without bones. This anchovy contains lots of calcium, protein, and minerals such as phosphorus and iron that are very useful for increasing the intelligence of children and toddlers, as well as for preventing osteoporosis in pregnant women and the elderly as well as helping in the growth of bones and teeth in infants, toddlers, and children. To improve the quality of anchovy nuggets, it is necessary to add certain binders to improve the taste of anchovy nuggets. This study aims to improve the quality of anchovy nuggets by adding a binder in the form of sajiku flour and adding to the economic value of refined anchovy so that it is more attractive to the public. There were 3 treatments and 2 repetitions. The treatments were A. Anchovies; A1 = using carrots, A2 = without carrots, and treatment B (my flour concentration); B1=100g, B2= 200g. Moreover, Treatment C (cooking temperature); C = 65ºC - 85ºC for 30 minutes. From the results of the study, it can be seen that the water content, protein content, and fat content did not show any significant effect]]>
<![CDATA[Supplementation of Crab (Portunus pelagicus) Shell Calcium Flour on Commercial Feed on Freshwater Lobster (Cherax quadricarinatus) Molting Frequency ]]>
<![CDATA[Azizah Mahary]]>;
<![CDATA[Andri Pratama Wibowo]]>
<![CDATA[ Jurnal Perikanan dan Kelautan Vol 28, No 1 (2023): February ]]>
Publisher : <![CDATA[Faculty of Fisheries and Marine, Universitas Riau ]]>
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DOI: 10.31258/jpk.28.1.76-83
<![CDATA[Freshwater lobster (Cherax quadricarinatus) is a type of crustacean (crustacean). Freshwater lobster is a type of shrimp that lives in shallow fresh inland waters, with a muddy substrate and lots of gaps and cavities to hide. The cultivation of freshwater lobsters is quite easy because the tolerance to the environment is quite high with relatively few disease problems. Molting is a natural process that occurs in freshwater lobsters as their bodies grow. Calcium is one of the mineral elements that lobsters really need to form new shells. In addition to calcium, lobsters will also undergo a mineralization process to form new membranes using calcium absorbed from the environment in which they live. The purpose of this study was to determine the effect of supplementation of calcium flour from crab shells on commercial feed on molting frequency, absolute weight and length, survival of freshwater lobster, and determine the appropriate dose of calcium flour supplementation of crab shells. This study used a completely randomized design (CRD) with 4 treatments and 4 replications with additional doses of calcium flour, 0%, 2%, 4%, and 6% per kg of feed. The stock density of freshwater lobster was 7 individuals per aquarium for 30 days of rearing. The results showed that the addition of shell calcium powder of as much as 4% (treatment C) was the best dose with 2 molts/ind and the lowest was in treatment A (control). The highest growth in absolute weight and absolute length was at a concentration of 4% (treatment C) 2.34g and 1.55 cm, the lowest value was obtained at treatment A (control) 1.63g and 0.95 cm. Supplementation of crab shell calcium flour in commercial feed for crayfish did not have a significant effect on the survival (SR) of freshwater lobster]]>
<![CDATA[The Effect of Water Hyacinth Biomass (Eichornia crassipes)on the Concentration of Chlorophyll-a on Local Catfish (Clarias batrachus) Rearing ]]>
<![CDATA[Deni Efandry Simatupang]]>;
<![CDATA[Syafriadiman Syafriadiman]]>;
<![CDATA[Saberina Hasibuan]]>
<![CDATA[ Jurnal Perikanan dan Kelautan Vol 28, No 1 (2023): February ]]>
Publisher : <![CDATA[Faculty of Fisheries and Marine, Universitas Riau ]]>
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DOI: 10.31258/jpk.28.1.7-17
<![CDATA[Eichornia crassipes have root fibers that can repair water quality, improve the concentration of chlorophyll-a, increase growth, and maintain the survival of local catfish. The purpose of this study was to obtain the best biomass of water hyacinth for the increasing concentration of chlorophyll-a on local catfish rearing in August – September 2020. This study used a one-factor completely randomized design (CRD) with 4 treatments and 3 replication. The treatments in this study had different water hyacinth biomass, P0 (Control), P1 (112 g m-2), P2 (162 g m-2), and P3 (212 g m-2). The local catfish seeds that are used are sized approximately 5-7 cm, weigh 2.62-3.02 g, maintained for 30 days in a rearing container with a peat water volume of 98 L and a density of 2 fish L-1. The result showed that the best treatment was biomass 212 g m2 water hyacinth containing concentration chlorophyll-a 0.73 µg L-1 with the value of correlation concentration chlorophyll-a (r)=0.97 and R2=0.95, it was able to improve concentration chlorophyll-a on local catfish rearing such as increasing pH 5.7-6.0, nitrate 2.45 mg L-1, phosphate 2.09 mg L-1, temperature 27-280C and dissolved oxygen 5.4-5.5 mg L-1. Absolute weight growth (9.04g) with the value of correlation (r) = 0.99 and R2 = 0.99, and survival rate of local catfish (94.67%). The highest growth of the biomass water hyacinth per 3 days is 2.82%.]]>
<![CDATA[Marketing of Processed Fish Products and Influencing Factors ]]>
<![CDATA[Yefrina Akhyudelpa]]>;
<![CDATA[Ratni Prima Lita]]>;
<![CDATA[Yulia Hendri Yeni]]>
<![CDATA[ Jurnal Perikanan dan Kelautan Vol 28, No 1 (2023): February ]]>
Publisher : <![CDATA[Faculty of Fisheries and Marine, Universitas Riau ]]>
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DOI: 10.31258/jpk.28.1.56-59
<![CDATA[The boundaries of the water’s Exclusive Economic Zone in West Sumatra Province are ± 186,500 km² and have the potential to produce as much as ± 340,930 tons/year in 2004. In 2007, there was a decrease in marine fish production to 187,092 tons. Three important elements of the market, namely (a) human will; (b) the desire to have; (c) the ability to shop. A group of people pursuing the business of processing fresh fish, making semi-finished products, as well as finished products is the purpose of fish processors. The environment around the business that has a direct impact on business operations is the marketing environment. The big influence that also affects the marketing of fish to fishery business actors or micro, small, and medium enterprises in the city of Padang is also caused by environmental factors used In this study uses a survey method that looks directly at each activity and conditions that exist in the research area related to problems that occur when marketing processed fish which is also an analysis of the factors that can affect fish consumption by consumers of Micro, Small and Medium Enterprises Micro, Small and Medium Enterprises]]>
<![CDATA[The Multiple Impact of Pulau cinta Tourism Object on the Community's Economy in Teluk Kenidai Village, Kampar District, Riau Province ]]>
<![CDATA[Fathia Azizi]]>;
<![CDATA[Darwis AN]]>;
<![CDATA[Trisla Warningsih]]>
<![CDATA[ Jurnal Perikanan dan Kelautan Vol 28, No 1 (2023): February ]]>
Publisher : <![CDATA[Faculty of Fisheries and Marine, Universitas Riau ]]>
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DOI: 10.31258/jpk.28.1.84-88
<![CDATA[The research was carried out in Pulau Cinta, Teluk Kenidai Village, Tambang District, Kampar Regency, Riau Province. This study aims to identify the type of business, and the economic impact of the Pulau Cinta tourist attraction on the people's economy, and analyze the multiple impact value of the Pulau Cinta tourist attraction on the people's economy. This study used a survey method and the respondents were 100 tourists, 42 business owners (business units), and 47 workers. Data collection was carried out using questionnaires and retrieval of documentation. The results showed that the types of businesses found in the Pulau Cinta tourist attraction were places to eat and drink, banana boat rentals, ATV motorbikes, and ornamental boats, the impact that occurred changes the livelihoods of the surrounding community due to new jobs in the tourism sector and increases in income, the multiple impact value shows that the Keynesian income multiplier is 1.17, the type I income multiplier ratio is 1.83 and the type II income multiplier ratio is 1.91 which means that Pulau Cinta tourism has an economic impact on the community, especially on people's income local Teluk Kenidai.]]>
<![CDATA[Analysis of Shoreline Changes Period 1991 – 2001 Pasumpahan Island, Padang, West Sumatera ]]>
<![CDATA[Fifi Sanora]]>;
<![CDATA[Rifardi Rifardi]]>;
<![CDATA[Elizal Elizal]]>
<![CDATA[ Jurnal Perikanan dan Kelautan Vol 28, No 1 (2023): February ]]>
Publisher : <![CDATA[Faculty of Fisheries and Marine, Universitas Riau ]]>
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DOI: 10.31258/jpk.28.1.31-36
<![CDATA[Pasumpahan Island is an area that is affected by currents, waves and sedimentation processes because it is directly adjacent to the Indian Ocean and the mouth of the Pisang River, this causes changes in the coastline in the form of abrasion and accretion on the island. This study aims to determine the effect of currents, waves, and sedimentation processes on the rate of change of the shoreline for 10 years (1991-2001) on Pasumpahan Island. This research was conducted in March 2022 on Pasumpahan Island, Padang City, West Sumatra Province. The method used is a survey method to obtain primary data including current speed, heightwaves and sediments. The study method used is a quantitative method with a multi-temporal satellite imagery approachusing the Digital Shoreline Analysis System (DSAS) software with the End Point Rate (EPR) approach. The results of the analysis of current velocity values ranged from 0.21-0.28 m/s, wave heights ranged from 0.24-0.55 m, the average diameter of the sediment ranged from 0.83-1 Φ. The results of image data processing show that there has been a change in the shoreline in the form of low category abrasion (0.4 m/year), stable (1.42 m/year), and accretion (3.07 m/year) on Pasumpahan Island]]>
<![CDATA[Coral Reef Status after the 2018 Sunda Strait Tsunami Using the CPCe Program: A Case Study of Tanjung Lesung Banten ]]>
<![CDATA[Luthfi Anzani]]>;
<![CDATA[La Ode Alam Minsaris]]>;
<![CDATA[Alya Dina Wilujeung]]>;
<![CDATA[Cakra Rahardjo]]>;
<![CDATA[La Ode Fajar Hasidu]]>;
<![CDATA[Fajar Nugroho]]>
<![CDATA[ Jurnal Perikanan dan Kelautan Vol 28, No 1 (2023): February ]]>
Publisher : <![CDATA[Faculty of Fisheries and Marine, Universitas Riau ]]>
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DOI: 10.31258/jpk.28.1.116-124
<![CDATA[Tsunami that swept the Tanjung Lesung coast in 2018 caused Anak Krakatau to collapse in Sunda Strait which hit the coastal areas of Banten and Lampung. Tanjung Lesung is one of the worst areas affected. Tsunami in Tanjung Lesung has taken lives, damaged infrastructure, and caused terrible natural damage. One of the damages affecting residents' lives in the Tanjung Lesung coastal community is exposure to the marine ecosystem. The main ecosystem that has the highest productivity level is the coral reef. Coral biota is the main benthic biota of reefs that are directly affected by earthquakes and tsunamis. Forms of damage to coral reef ecosystems include several coral colonies that were found broken, overturned and some died because they were covered by sediment. However, until now there has been no data on the status of coral reefs after the 2018 Sunda Strait tsunami. Therefore, researchers feel the urgency of this research is high enough to determine the condition of coral reefs after the Sunda Strait tsunami in Tanjung Lesung. There are 3 research stations for data collection before the tsunami, and we conduct research in those 3 stations again after the tsunami. Then we added 3 research stations again, so there are 6 research stations. Observation of coral reefs uses the Line Intercept Transect (LIT) method. The line transect is made by stretching a roll meter with a scale parallel to the coastline along 25 meters with three replications with an interval of about 0-5 meters between replications so the total observed transect was 75 meters. The deterioration of coral reef conditions at three research stations (1-3) proved that the tsunami waves affected the damage to coral reefs. This has an impact on the diversity of coral reef species inhabitants that have decreased. Disturbance form coral-damaged structure and composition changes of the base substrate as habitat can have an impact on reef fish and coral reef inhabitants. So that this research is expected to be a reference for policymakers in determining rehabilitation steps for areas affected by the 2018 Sunda Strait tsunami]]>
<![CDATA[Tourism Suitability Index (TSI) and Regional Carrying Capacity (RCC) of Pesona Beach in Teluk Rhu Village, North Rupat Bengkalis Regency, Riau ]]>
<![CDATA[Merry Manalu]]>;
<![CDATA[Trisla Warningsih]]>;
<![CDATA[Darwis AN]]>
<![CDATA[ Jurnal Perikanan dan Kelautan Vol 28, No 1 (2023): February ]]>
Publisher : <![CDATA[Faculty of Fisheries and Marine, Universitas Riau ]]>
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DOI: 10.31258/jpk.28.1.103-111
<![CDATA[Rupatisland in Riau Province has many beaches as tourist destinations. One of the beaches is Pesona Beach which is located in Teluk Rhu village, North Rupat, Riau Province. This beach has the beauty of white sand that stretches along the coast. This study was conducted in July 2021 with the aim of knowing the tourism suitability index and calculating the carrying capacity of the region to develop into a beach tourism destination. This research method used descriptive and qualitative methods then the data is based on the parameters of the TourismSuitabilityIndex(TSI) and Regional Carrying Capacity(RCC). The final results showed that the tourism suitability index for four categories: beach recreation S2 (appropriate), swimming S2 (appropriate), fishing S1 (very suitable), and boating S1 (very suitable). The regional carrying capacity of the Pesona beach area for tourism activities can accommodate 821 people/day. If there is an excess of visitors, it will have a negative impact on the ecosystem, therefore it is necessary to pay attention to the operation of the tourist area so that it is preserved and sustainable]]>
<![CDATA[Identification of Saponins from the Active Fraction Sea Cucumbers (Stichopus vastus sluiter) ]]>
<![CDATA[M Irwan Sapta Purna Bintang]]>;
<![CDATA[Mery Sukmiwati]]>;
<![CDATA[Rahman Karnila]]>
<![CDATA[ Jurnal Perikanan dan Kelautan Vol 28, No 1 (2023): February ]]>
Publisher : <![CDATA[Faculty of Fisheries and Marine, Universitas Riau ]]>
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DOI: 10.31258/jpk.28.1.112-115
<![CDATA[This study aims to determine the secondary metabolic content of saponin contained in the active fraction of sea cucumber (Stichopus vastus) by using metabolic test reagents and thin-layer chromatography (TLC) analysis. The active fraction was given the reagent in the form of HCl 2N and strong acid then continued with analysis to determine the Rf value and lieberman-burchad reaction. The results of the metabolic reaction test showed that the active fraction contained steroidal saponin compounds characterized by the presence of a stable foam and the formation of a greenish-green color. TLC analysis produced a single stain with an Rf value of 0.9 and a bluish color reaction after being given Liberman-burchad which confirmed that the saponins contained in the active fraction of sea cucumbers were steroidal saponin]]>
<![CDATA[Acute Toxicity Test of Laundry Detergent Waste and Sublethal Test to Gourami Fingerlings (Osphronemus gouramy) ]]>
<![CDATA[Rizky Ramadhan]]>;
<![CDATA[Syafriadiman Syafriadiman]]>;
<![CDATA[Saberina Hasibuan]]>
<![CDATA[ Jurnal Perikanan dan Kelautan Vol 28, No 1 (2023): February ]]>
Publisher : <![CDATA[Faculty of Fisheries and Marine, Universitas Riau ]]>
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DOI: 10.31258/jpk.28.1.125-133
<![CDATA[Laundry detergent waste is toxic and can harm the environment and aquatic life. This study aims to find out the effect of detergent waste on the growth and mortality of gourami (Osphronemus gouramy) seeds and the threshold value of laundry detergent waste that can still be tolerated by gourami seeds. This research was carried out from December 2020 to January 2021 at the Aquaculture Environmental Quality Laboratory, Faculty of Fisheries and Marine Science (FPK) University of Riau. This research method used an experimental method using a completely randomized design (CRD) method with three tests namely the preliminary test, acute toxicity test, and sublethal test. Observation of fish behavior and morphology during the test is described descriptively. In the preliminary test, the lower and upper threshold values were 10 mlL-1and 100 mlL-1. Then in the acute toxicity test, the value LC50-96hour was obtained at 30.1 mlL-1with a biological safe limit value of 0.301 mlL-1. The best treatment obtained from the sublethal test was P1 with a concentration of 0.3 mlL-1resulting in an absolute weight gain of 1.03 g, a specific growth rate of 1.56%, and a survival rate of 83.33%. The mortality rate is influenced by the concentration of detergent waste, the higher the concentration of detergent waste, the higher the mortality rate. Detergent waste that enters the waters affects the surface tension of the water so that the oxygen diffusion process is hampered, the reduced dissolved oxygen stresses the fish. Detergent waste can also enter the fish's body, irritating the gills and other organs, which can lead to death]]>
