Jurnal Perikanan Universitas Gadjah Mada
Jurnal Perikanan Universitas Gadjah Mada are published to promote a critical review of the various investigative issues of interest in the field of fisheries between the researchers, academics, students and the general public, as a medium for communication, dissemination, and utilization of wider scientific activities.
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<![CDATA[Haematological Profile and Serum Biochemistry of Juvenile Clarias gariepinus as Biomarkers of Textile Wastewater Toxicity ]]>
<![CDATA[Durojaiye, Abiola]]>;
<![CDATA[Ojetayo, Teslim Asafe]]>;
<![CDATA[Adedeji, Helen Oluwaseun]]>
<![CDATA[ Jurnal Perikanan Universitas Gadjah Mada Vol 26, No 1 (2024) ]]>
Publisher : <![CDATA[Universitas Gadjah Mada ]]>
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DOI: 10.22146/jfs.81962
<![CDATA[Pollution is a global problem with hazardous consequences especially on the biotic components of the aquatic ecosystem. Blood is a useful tool in diagnosing the health condition of fish. Hence, the aim of this project was to evaluate the effect of textile wastewater on fish blood. Fish were exposed to varying concentrations of textile wastewater for 96 hours. There were four treatments including the control and others containing 0.0005 ppm, 0.002 ppm and 0.035 ppm of textile wastewater per every 35 litres of freshwater. Each treatment had one replicate with 5 fish stocked in each replicate. The textile effluent significantly reduced (p<0.05) red blood cells (RBC), packed cell volume (PCV), haemoglobin concentration (HGB), and white blood cell (WBC) in the other treatments compared to the control. However, the mean corpuscular volume (MCV), mean corpuscular haemoglobin (MCH), and mean corpuscular haemoglobin concentration (MCHC) were not statistically different (p>0.05) from the control. There was a significant reduction in the value of serum metabolites (total protein, globulin, glucose) of juvenile C. gariepinus after exposure to textile effluent (p<0.05). Urea, albumin, and cholesterol increased significantly (p<0.05). However, creatinine did not follow any specific trend across the treatments. The activities of Aspartate transaminase (AST) and Alkaline transaminase (ALT) were significantly higher in the exposed fish compared to the control (p<0.05). Alkaline phosphatase (ALP) recorded a significantly higher value in the control compared to the other treatments (p<0.05). There were no significant differences in the concentrations of both Superoxide dismutase (SOD) and Glutathione S-transferase (GST) of fish exposed to textile effluent (p>0.05). The result revealed that the textile wastewater adversely affected the blood components of the exposed fish. It can be concluded that the presence of textile wastewater in aquatic environments could induce stress and consequently deteriorate the health of aquatic organisms.]]>
<![CDATA[Analysis of Tambau Water Pollution Levels Through Histopathology of Nilem Fish (Osteochilus vittatus) ]]>
<![CDATA[Atifah, Yusni]]>;
<![CDATA[Arianti, Riri Putri]]>;
<![CDATA[Vauzia, Vauzia]]>;
<![CDATA[Satria, Rijal]]>
<![CDATA[ Jurnal Perikanan Universitas Gadjah Mada Vol 26, No 1 (2024) ]]>
Publisher : <![CDATA[Universitas Gadjah Mada ]]>
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DOI: 10.22146/jfs.85043
<![CDATA[Tambau Lake is a lake used by the community to cultivate fish. The quality of lake waters can be reflected through animals that live in lake waters such as fish. Fish that have been polluted with pollutant compounds for a long period of time will experience structural and functional abnormalities, as well as changes in histological conditions. This study aims to determine the level of water pollution in Tambau Lake through histopathological studies of Osteochilus Vittatus gills. This type of research is a descriptive analysis using a survey method of Tambau Lake and Osteochilus vittatus. Determination of Osteochilus vittatus and water samples using purposive random sampling method. Preparation using paraffin method and hematoxylin-eosin staining. The results of the study were then analyzed descriptively based on the level of damage to the gill tissue structure with the level of water pollution. The results of histopathological analysis on Osteochilus vittatus gill samples found damage to the presence of (a) edema (cell swelling), (b) hyperplasia which causes other damage, namely (clubbing tissue shaped like a baseball bat and thickening of cartilage) and (c) secondary lamella fusion which continues to become (telangiectasis) which indicates that Tambau Lake water is experiencing moderate - severe pollution. This is also in line with simple water quality results (physical, chemical and biological tests) which showed that the level of pollution was classified as severe.]]>
<![CDATA[Effect of Clove Oil Addition on Edible Coating and Film on Bacterial Activity in Skipjack Fish Fillets ]]>
<![CDATA[Souhoka, Fensia Analda]]>;
<![CDATA[Kapelle, Imanuel Berly Delvis]]>;
<![CDATA[Lilipaly, Reggi Austin]]>
<![CDATA[ Jurnal Perikanan Universitas Gadjah Mada Vol 26, No 1 (2024) ]]>
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DOI: 10.22146/jfs.86946
<![CDATA[Using bioactive compounds in environmentally friendly food packaging can extend the shelf life of food. This study aimed to determine how adding clove oil in manufacturing edible coatings and chitosan films affects bacterial activity in skipjack tuna fillets. Edible coatings and films made from 1% chitosan were prepared by adding clove oil with a concentration of 1; 2; 3; 4; and 5%. The edible solution was applied to the skipjack tuna fillets using two packaging techniques: edible coating by immersing the sample for two minutes and edible film by wrapping the sample. The microbial activity test was carried out using the total plate count (TPC) method a microbiological test to count the number of live cells or colony-forming units in food. The maximum number of bacterial colonies using the TPC test based on SNI 01-2332.3-2006 for fishery products is 1.0x105 colonies/g. The number of bacterial colonies in the edible coating sample was 1.9x103–2.4x104 CFU/g, while the edible film sample was 1.8x104–2.4x105 CFU/g. Adding clove oil affected the TPC value compared to the untreated chitosan edible. Using bioactive compounds in environmentally friendly food packaging can extend the shelf life of food. The number of edible coating colonies on adding 1% clove oil was 5.8x103 CFU/g, lower than edible film 4.1x104 CFU/g and complying with SNI. Applying an edible coating on skipjack tuna fillets with 1-5% clove oil is better than using edible film regarding the TPC value.]]>
<![CDATA[Population Genetic of Kawakawa (Euthynnus affinis) in Sumatera Island ]]>
<![CDATA[Zedta, Raymon Rahmanov]]>;
<![CDATA[Maduppa, Hawis H]]>;
<![CDATA[Zamani, Neviaty Putri]]>;
<![CDATA[Subhan, Beginer]]>;
<![CDATA[Sani, Lalu Mukhsin Iqbal]]>
<![CDATA[ Jurnal Perikanan Universitas Gadjah Mada Vol 26, No 1 (2024) ]]>
Publisher : <![CDATA[Universitas Gadjah Mada ]]>
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DOI: 10.22146/jfs.87578
<![CDATA[Over the past five decades, there has been a growing trend in the capture of kawakawa (Euthynnus affinis), which, alongside its potential to support small-scale commercial fisheries, highlights its significance.However, there is inadequate data on this species for suitable management and conservation status. This study aimed to investigate the genetic diversity, population structure, and connectivity of the kawakawa in the three major fishing port in Sumatra, namely Belawan , Padang, and Lampung by using DNA mitochondria control region (d-loop) Sequence. In total, 78 sequences of kawakawa with an average size of 303 bp, we found 36 polymorphic sites and 56 haplotypes from all population were identified with DNA compatibility values of 97-100%. We found the genetic diversity values in Sumatera Island were high (h = 0.950; π = 0.034), with the highest genetic diversities value in Padang (h = 0.990; π = 0.082) and the lowest in Belawan (h = 0.929; π = 0.082). AMOVA and Fst analyses revealed no differentiation in each population (Fst = 0.005). The haplotype distribution and connectivity analyses showed genetic mixing among the three populations. This study showed a single stock at the study sites and suggests management measures at a regional level to maintain the population.]]>
<![CDATA[The Effect of Salinity on the Growth and Albumin Content of Striped Snakehead (Channa striata Bloch, 1793) ]]>
<![CDATA[Herlina, Sri]]>;
<![CDATA[Ndobe, Samliok]]>;
<![CDATA[Mangitung, Septina Fifi]]>;
<![CDATA[Masyahoro, Abdul]]>;
<![CDATA[Rukka, Andi Heryanti]]>;
<![CDATA[Madinawati, Madinawati]]>
<![CDATA[ Jurnal Perikanan Universitas Gadjah Mada Vol 26, No 1 (2024) ]]>
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DOI: 10.22146/jfs.90616
<![CDATA[The striped snakehead (Channa striata Bloch, 1793) is a freshwater fish which has long been popular as a food fish. Commonly found in freshwater bodies such as rivers, swamps and lakes, striped snakeheads have a high albumin protein content which can help to accelerate wound healing, facilitate the circulation of body fluids and maintain osmotic pressure in the body. Salinity is one of the limiting factors that can affect fish growth and survival. Changes in salinity could directly affect striped snakehead growth and metabolism. The purpose of this study was to determine the effect of different salinity treatments on the growth and albumin content of juvenile striped snakeheads. The research was conducted in November-December 2021 at the Water Quality and Aquatic Biology Laboratory, Faculty of Animal Husbandry and Fisheries, Tadulako University, Indonesia. The study applied 5 salinity treatments (2 ppt, 4 ppt, 6 ppt, 8 ppt and 10 ppt) with 8 replicates for 30 days. Net weight gain, specific growth rate (weight and length) and survival rate did not differ significantly between treatments (ANOVA, P>0.05). The Tukey post-hoc test indicated significantly higher growth under the 8 ppt salinity treatment (1.04±0,19 cm) with 100% survival rate. Albumin content increased linearly with salinity from 2 ppt (3.6-4.0%) to 10 ppt (4.9-5.3 %).]]>
<![CDATA[Machine Learning-Driven Seaweed Genera Identification on a Web Application Using Teachable Machine ]]>
<![CDATA[Azhar, Riza Nur]]>;
<![CDATA[Yudiati, Ervia]]>;
<![CDATA[Sedjati, Sri]]>
<![CDATA[ Jurnal Perikanan Universitas Gadjah Mada Vol 26, No 1 (2024) ]]>
Publisher : <![CDATA[Universitas Gadjah Mada ]]>
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DOI: 10.22146/jfs.92955
<![CDATA[This study aims to evaluate the use of machine learning technology, particularly Teachable Machine, in identifying seaweed genus in Indonesia. The limitations of identification databases and the lack of previous research were the main drivers of this study. The research focused on Panjang Island with three representative field data collection stations. This field data became the basis for training machine learning models for identification. In addition to field data, information from the literature on seaweed visual characteristics was also taken to support the identification process. The machine learning model developed achieved 99.42% accuracy in identifying 13 classes of 9 seaweed genus. The implementation of the model on the web application showed satisfactory responsive performance, including in the speed test on Google PageSpeed. Overall, the integration of machine learning technology in a web application platform provides a practical solution for accurate and accessible seaweed identification. This invention has great potential in supporting research, conservation, and sustainable utilization of marine resources in Indonesia.]]>
<![CDATA[An Ethnozoological Study: Utilization of Sharks Fishermen's Community of Brondong Village, Lamongan Regency ]]>
<![CDATA[Setyawan, Dwi]]>;
<![CDATA[Farid, Saif Aiman]]>;
<![CDATA[Hadi, Samsun]]>;
<![CDATA[Permana, Fendy Hardian]]>;
<![CDATA[Prihanta, Wahyu]]>
<![CDATA[ Jurnal Perikanan Universitas Gadjah Mada Vol 26, No 1 (2024) ]]>
Publisher : <![CDATA[Universitas Gadjah Mada ]]>
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DOI: 10.22146/jfs.87118
<![CDATA[The problems studied focus on the influence of ethnozoological knowledge and family economic Status on the use of endangered sharks by the people of Brondong village. The Data were taken in the form of (1) ethnozoological knowledge of the community, (2) Family economic status, (3) Attitudes, and (4) Shark utilization behavior. Data collection is done by survey method with the help of questionnaire, structured interview, and direct observation. Path - analysis is performed to determine the relationship of the proposed variables. Not only that, the relationship of variables can also be explained by descriptive analysis. The results showed that the Brondong ethnic community still adheres to Airlangga and Majapahit culture by maximizing fishing activities, one of which is the behavior of shark utilization for sale and consumption. While the results of Block 1 path analysis showed a significant influence of ethnozoological knowledge on attitudes, amounting to 0.446. While the results of Block 2 showed the influence of attitudes towards shark utilization behavior, had a significant path coefficient of 0.253. It is concluded that ethnozoological knowledge affects indirectly the utilization of shark behavior by passing attitude.]]>
<![CDATA[Major Fisheries Species along with Their Contribution to the National Fishery Production in Bangladesh ]]>
<![CDATA[Manik, Mehedi Hasan]]>
<![CDATA[ Jurnal Perikanan Universitas Gadjah Mada Vol 26, No 1 (2024) ]]>
Publisher : <![CDATA[Universitas Gadjah Mada ]]>
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DOI: 10.22146/jfs.87151
<![CDATA[In Bangladesh, due to its geographical location, fisheries play a significant role in socioeconomic development and food security. The country has 57 major rivers and nearly 118,813 km2 marine area in the Bay of Bengal. Almost 260 freshwater and 740 marine water fisheries species are found in Bangladesh. There is a lack of studies dealing with species-wise production status and growth rate in Bangladesh. This study is conducted to discover the recent trend of fisheries yield with major species-wise production share and growth rate. The required data have been collected from the website of the Department of Fisheries of the government of Bangladesh. Fisheries yield is increasing in Bangladesh, but the inland culture segment is growing fast compared to inland capture and marine segments as the slope of inland culture is 1.1, higher than inland capture and marine. Species converging in the major carp group are the highest, over 21%, contributor to the national yield. As a single species, the Hilsa takes the maximum production share, around 12%. The contribution of marine species is poor, approximately 15% of the total yield, compared to the potential. Bangladesh may raise the required export diversification based on fisheries resources. To do so, the policymakers of Bangladesh should raise funds for blue economic research, human resource development, and technology import.]]>
<![CDATA[Perspectives of Fishers on the Incident of Fish Kills in Coastal Waters in Rivers State, Nigeria ]]>
<![CDATA[Olopade, Olaniyi Alaba]]>;
<![CDATA[Dienye, Henry Eyina]]>;
<![CDATA[Oroma, Bestman Succes]]>
<![CDATA[ Jurnal Perikanan Universitas Gadjah Mada Vol 26, No 1 (2024) ]]>
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DOI: 10.22146/jfs.89782
<![CDATA[This study was conducted to assess fishermen's perspectives on the massive fish kill incident in coastal waters in Rivers State, Nigeria. Primary data were collected using questionnaires from 101 randomly selected fishermen and the data were evaluated using descriptive statistics. The results showed that fishing was the main occupation of the respondents and the interviewed fishermen have fishing experience in the region studied and knowledge of their fishery. The results showed that 53.3 percent of fishermen attributed the strange phenomenon to pollution, while 19.8 percent of fishermen cited infection and disease as the cause of the fish kills. The majority of respondents (94%) reported that croaker fish species were particularly affected in the study area. Other observations include fish swimming on the surface or jumping onto shore and affected fish washing up on shore. The unusual appearances of the dead fish commonly reported by respondents were as follows: fin rot, open mouth, disease spots and deep blue gills. About half of the respondents (50.5%) gave a range of 1,000 - 5000 dead fish and a size class of the dead fish of more than 30 cm. Most respondents (79.2%) indicated that the government has not taken any action. Few of those surveyed reported government action on sea clean-up exercises to remove dead fish, end oil spillage and bunkering as measures put in place by the government. The study recommended partnerships between the government and fishermen and fishermen's groups as stakeholders are required to address the concerns about marine waters.]]>
<![CDATA[Hydrolysis of Polysaccharide Caulerpa racemosa Seaweed with Fermentation Lactobacillus plantarum SK (5) ]]>
<![CDATA[Sudibyo, Muhammad Farid]]>;
<![CDATA[Santoso, Joko]]>;
<![CDATA[Desniar, Desniar]]>
<![CDATA[ Jurnal Perikanan Universitas Gadjah Mada Vol 26, No 1 (2024) ]]>
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DOI: 10.22146/jfs.91045
<![CDATA[Hydrolysis of polysaccharides can increase biological activity by changing the structure of polysaccharide functional groups and reducing molecular weight. Enzyme hydrolysis is an environmentally friendly hydrolysis method because it does not form toxic by-products. Lactobacillus plantarum can produce amylase and cellulase enzymes, which can be used to hydrolyze C. racemosa polysaccharides. This research aims to determine the best fermentation time and starter concentration in the C. racemosa polysaccharide hydrolysis process and the C. racemosa glucose concentration before and after fermentation. The research was divided into phases: phase I and II. The fermentation time in Phase I is six days, while in Phase II, it is 48 hours. The starter concentrations used are 0%, 5%, and 10%. The analysis showed that differences in starter concentration and fermentation time caused changes in the total values of LAB, TTA, pH, reducing sugar and glucose concentration. The best treatment was shown by adding 5% starter with a fermentation time of 24 hours.]]>
