Asian Journal of Fisheries and Aquatic Research 2020-04-10T07:57:25+00:00 Asian Journal of Fisheries and Aquatic Research Open Journal Systems <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> Fishing Vessel Characteristics with Multipurpose Gear to Support Fishing Operations in the Northern Sea of Java, Indonesia (Case Study in Indramayu) 2020-04-09T20:24:49+00:00 Izza M. Apriliani Lantun P. Dewanti Alexander M. A. Khan Heti Herawati Achmad Rizal Nadia M. Kusnadi <p>This study aims to analyze the ratio of the main dimensions of the vessel to see the performance of vessels with multipurpose gear. The research was conducted in February-March 2018 at the Karangsong Fish Landing Base (Ind: PPI), Indramayu. The object of research is the vessel used for fishing operations with multipurpose gear. The research method uses survey methods through the measurement of the main dimensions of fishing vessels, interviews and literature studies. The data obtained were then analyzed by comparative descriptive to compare the value of the ratio of the main dimensions of the vessel between Length and Breadth (L/B), the ratio between Length and Depth (L/D) and the ratio between Breadth and Depth (B/D). The calculation results of the ratio of the main dimensions of the vessel are then compared with the standard ratio values in Indonesia. Fishing vessels with multipurpose gear in Indramayu have good vessel motion characteristics but have an impact on slow speed, strong elongation strength of the vessel, and stability and ability to drive a good vessel. The dimension ratio of multipurpose gear vessels generally meets the criteria of the ratio of the main dimensions of vessels based on the method of operation in Indonesia. It should be noted that the L / B ratio tends to exceed the minimum standard criteria for the Indonesian dimension ratio, this results in slow speeds and will interfere with the setting and hauling fishing gear on seine boat and mini trawl fishing gear.</p> 2020-03-02T00:00:00+00:00 ##submission.copyrightStatement## Water Quality Assessment of Shitalakhya River 2020-04-09T20:24:47+00:00 Md. Mahabub Alam Md. Kudrat- E-Zahan M. Habibur Rahman A. A. S. Mostofa Zahid <p>Water quality is the key of environmental concern because of its important provision of water for drinking and domestic purpose, irrigation and aquatic life including fish and fisheries. The present study was conducted to assess the surface water quality of the Shitalakhya River from January, 2017 to December, 2018. Temperature, pH, EC, TDS, TSS, BOD<sub>5</sub>, Alkalinity, Total Hardness, Calcium Hardness, Magnesium Hardness, Chloride, Dissolved Silica, Total Iron concentration and Turbidity in water samples have been found in the ranges 24 - 33°C, 6.5 - 7.6, 108 - 478 µS/cm, 54 - 245 ppm, 8 - 118 mg/l, 6 - 12 mg/l, 36.6 - 231.8 mg/l, 30 - 190 mg/l, 20 - 120 mg/l, 10 - 80 mg/l, 3.54 - 9.91 mg/l, 16 - 51 mg/l, 0.10 - 1.5 mg/l, 2.09 - 120 NTU in the year 2017 and 21 - 32.5°C, 6.7 - 7.3, 101 - 424 µS/cm, 55 - 212 ppm,&nbsp; 10 - 154 mg/l, 7 - 16 mg/l, 42.7 - 219.6 mg/l,&nbsp; 35 - 180 mg/l, 25 - 115 mg/l, 10 - 70 mg/l, 4.96 - 16.99 mg/l, 19 - 84 mg/l, 0.10 - 2.50 mg/l, 2.73 - 214 NTU in the year 2018 respectively. Obtained results of the present study area shows that most of the parameters were within the permissible limit except Turbidity, Total Suspended Solid (TSS), Dissolved Silica (SiO<sub>2</sub>) and Biological Oxygen Demand for five days (BOD<sub>5</sub>). Use of river water can pose serious problems to human health and aquatic ecosystem via biological food chain. The present research suggests special preference for better management of the river water to protect the health of aquatic ecosystem of the river.&nbsp;</p> 2020-03-24T00:00:00+00:00 ##submission.copyrightStatement## Haematological Studies of Clarias gariepinus Exposed to Ethanolic Stem Bark Extracts of Ackee, Blighia sapida 2020-04-10T07:57:25+00:00 M. U. Effiong E. A. Sunday F. A. Ella <p>The study evaluated effects of sub-lethal concentrations (0.00, 1.6, 3.2, 6.4, 12.8 g/l) of ethanolic stem bark extracts of ackee, <em>Blighia sapida</em> on haematological profile of <em>Clarias gariepinus </em>(mean weight, 6.95± 1.02 g; total length 11.7±1.32 cm). Each concentration was treated in triplicate using a static bioassay system. The exposure period was 21 days. Physico-chemical parameters of water were monitored throughout the study period. Results revealed that haematocrit, red blood cell, haemoglobin and mean corpuscular haemoglobin concentration counts were significantly (p&lt;0.05) depleted with increase in extract concentration while white blood cell counts increased (p&lt;0.05) linearly from 198.2, 198.5, 208.8, 219.4 and 241.53 x 10<sup>3 </sup>cells/µl in 0.00, 1.6, 3.2, 6.4 and 12.8 g/l respectively. The levels of water temperature increased with extract concentrations while dissolved oxygen and pH contents decreased. The implications of these results showed that stem bark extract of ackee had negative effects on the blood of treated fish. This may further explain the decline in wild fishery resources in the locality where the plant parts were collected. In view of this, the direct use of this plant in harvesting fish by local fisher folks in Southern Nigeria should be discouraged until information that aid its application in a sustainable manner is made available through further studies.</p> 2020-04-10T00:00:00+00:00 ##submission.copyrightStatement##