Asian Journal of Fisheries and Aquatic Research http://www.journalajfar.com/index.php/AJFAR <p style="text-align: justify;"><strong>Asian Journal of Fisheries and Aquatic Research</strong>&nbsp;<strong>(ISSN: 2582-3760)</strong> aims to publish high quality papers (<a href="/index.php/AJFAR/general-guideline-for-authors">Click here for Types of paper</a>) on all areas of aquatic research. This journal facilitates the research and wishes to publish papers as long as they are technically correct, scientifically motivated. The journal also encourages the submission of useful reports of negative results. This is a quality controlled, OPEN peer reviewed, open access INTERNATIONAL journal.</p> en-US contact@journalajfar.com (Asian Journal of Fisheries and Aquatic Research) contact@journalajfar.com (Asian Journal of Fisheries and Aquatic Research) Tue, 18 Feb 2020 08:37:56 +0000 OJS 3.1.1.4 http://blogs.law.harvard.edu/tech/rss 60 Determination of Biochemical Responses of Genetically-male Tilapia (Oreochromis niloticus) after Replacing Fish Oil with Plant-based Oils in Their Diets http://www.journalajfar.com/index.php/AJFAR/article/view/30080 <p>This study evaluated biochemical responses of genetically male tilapia after replacing fish oil with plant-based oils in their diets. The sources of oils were coconut, olive, crude palm, sunflower and sesame seed. These oils were incorporated at 7% level and were used to formulate five isonitrogenous (42.5% CP) diets. In the control experiment (sixth diet) fish oil was used. Fish were reared in 1 m x 1 m x 1 m floating net-hapa. Feeing trial lasted for 12 weeks. At the end of the experiment, blood samples were collected and tested for serum protein, electrolytes and tissue lipid peroxidation. Results of the study revealed that the ratio of albumin to globulin was statistically similar (p &gt; 0.05) in all fish group examined. The results of serum electrolyte showed that olive oil treated fish recorded the highest (p &lt; 0.05) level. The amount of malondialdehyde (MDA) formed in fish tissues increased (p &lt; 0.05) in sunflower oil group by 69%, 43%, 20% and 32% in the liver, kidney, gills and heart respectively. This indicated that reactive oxygen species may be associated with the metabolism of sunflower oil leading to peroxidation of membrane lipids of the respective organs. However, this level of MDA deposition had not been associated with any negative effects on fish health. Inferences from this study conclusively support the direct use of these plant oils as total replacement for fish oil in diets of <em>Oreochromis niloticus.</em></p> M. U. Effiong, A. W. Akpan, I. K. Esenowo ##submission.copyrightStatement## http://www.journalajfar.com/index.php/AJFAR/article/view/30080 Tue, 18 Feb 2020 00:00:00 +0000 The Relationship of Megazoobenthos Association with Seagrass Ecosystem Conditions in Ujung Genteng Waters, Sukabumi http://www.journalajfar.com/index.php/AJFAR/article/view/30081 <p>Seagrass beds in Ujung Genteng waters are one of the shallow marine ecosystems that have relatively high biodiversity. Seagrass ecosystem as one of the coastal ecosystems in these waters has a diversity of marine life that is associated with it. The purpose of this study was to establish the association pattern and the correlation of mega zoobenthos to seagrass ecosystem conditions. The method used was a survey method by conducting a survey direct observation of the stations that have been determined.&nbsp; Three seagrass species were identified, namely: <em>Thallasia hemprichii</em>, <em>Cymodoceae rotundata</em> and <em>Enhalus acoroides</em>. The highest density of seagrass was found in station 2 with the type of seagrass <em>Thallasia hemprichii</em>&nbsp;as much as 207 ind/m<sup>2</sup>. Fifteen mega zoobenthos species were identified representing 3 phyla. Species Mega zoobenthos which is most commonly found in Ujung Genteng waters is <em>Ophiothrix fragilis</em>, <em>Ophiocoma erinaceus</em>, and <em>Diadema setosum</em>. The mega zoobenthos Diversity Index at the observation station is included in the medium category that is 2.33-2.66 and the evenness index is 0.63-0.84. Correlation of seagrass density with mega zoobenthos obtained by 0.92 shows that there is a very strong relationship between seagrass density with mega zoobenthos. The result shows that there are 4 patterns of close association and 2 patterns of very close association. <em>Ophiocoma erinaceus</em> of the ophiuroidea class has a pattern of very close positive associations with seagrass <em>Cymodoceae rotundata</em> and <em>Dendrodoris sp</em> of the order nudibranchia has a pattern of very close negative associations with seagrass <em>Cymodoceae rotundata.</em></p> Gilang Primanagita Rachman, Indah Riyantini, Zahidah Hasan, Herman Hamdani ##submission.copyrightStatement## http://www.journalajfar.com/index.php/AJFAR/article/view/30081 Thu, 20 Feb 2020 00:00:00 +0000 Perifiton Community Structure in Citarik River http://www.journalajfar.com/index.php/AJFAR/article/view/30083 <p>The purpose of this research is to determine the condition of waters in the Citarik River with the periphyton community as a bio indicator. This research was conducted from March-April 2019. The research method used was a survey method at 4 station points, five times sampling with a span of 7 days. The smallest periphyton abundance is in station IV which is 22 ind/cm<sup>2</sup> and the most is in station I which is 18278 ind/cm<sup>2</sup>. Comparison of species deficit values at each station is different, this is influenced by different physical and chemical parameters. The dominance index value in the waters of the Citarik River ranges from 0.1 to 0.8 and the diversity index value ranges from 0.2 to 0.9. The results showed the Citarik River was in a mildly polluted condition.</p> Heti Herawati, Nisa Hidayati Fitri, Zahidah ., Asep Sahidin, Izza Mahdiana Apriliani, Lantun Paradhita Dewanti ##submission.copyrightStatement## http://www.journalajfar.com/index.php/AJFAR/article/view/30083 Tue, 25 Feb 2020 00:00:00 +0000 Factors Influencing the Lipid Content and Fatty Acids Composition of Freshwater Fish: A Review http://www.journalajfar.com/index.php/AJFAR/article/view/30082 <p>Fish farming has a long tradition in Central Europe. Aquaculture is highly developed here and even so, freshwater fish meat consumption is still very low. Freshwater fish meat is an important source of n–3 long-chain polyunsaturated fatty acids (PUFA), principally eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) which have an indisputable effect on human health and prevent the genesis of human coronary disease. Previous researches revealed many aspects affecting the PUFA quantity. In general, the fatty acid composition of fish lipids affects age, seasonal change, nutrition, sex, reproductive cycle, geographical location, etc. This review represents a step towards the characterization of the fatty acid composition of economically important freshwater fish species from different points of view, including the above-mentioned factors and taking into consideration the way of stunning and differences of lipid composition in individual fish body sections.</p> Lucie Všetičková, Pavel Suchý, Eva Straková ##submission.copyrightStatement## http://www.journalajfar.com/index.php/AJFAR/article/view/30082 Fri, 21 Feb 2020 00:00:00 +0000