Open Access Original Research Article

Fishing Vessel Characteristics with Multipurpose Gear to Support Fishing Operations in the Northern Sea of Java, Indonesia (Case Study in Indramayu)

Izza M. Apriliani, Lantun P. Dewanti, Alexander M. A. Khan, Heti Herawati, Achmad Rizal, Nadia M. Kusnadi

Asian Journal of Fisheries and Aquatic Research, Page 1-8
DOI: 10.9734/ajfar/2020/v6i130085

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.

Open Access Original Research Article

Water Quality Assessment of Shitalakhya River

Md. Mahabub Alam, Md. Kudrat- E-Zahan, M. Habibur Rahman, A. A. S. Mostofa Zahid

Asian Journal of Fisheries and Aquatic Research, Page 9-20
DOI: 10.9734/ajfar/2020/v6i130086

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, BOD5, 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,  10 - 154 mg/l, 7 - 16 mg/l, 42.7 - 219.6 mg/l,  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 (SiO2) and Biological Oxygen Demand for five days (BOD5). 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. 

Open Access Original Research Article

Haematological Studies of Clarias gariepinus Exposed to Ethanolic Stem Bark Extracts of Ackee, Blighia sapida

M. U. Effiong, E. A. Sunday, F. A. Ella

Asian Journal of Fisheries and Aquatic Research, Page 21-27
DOI: 10.9734/ajfar/2020/v6i130088

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, Blighia sapida on haematological profile of Clarias gariepinus (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<0.05) depleted with increase in extract concentration while white blood cell counts increased (p<0.05) linearly from 198.2, 198.5, 208.8, 219.4 and 241.53 x 103 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.

Open Access Original Research Article

Analysis of Local Government Policies in the Development of Aquaculture in Bandung District, West Java, Indonesia 2019

Gita Adillah, S. Asep Agus Handaka, Achmad Rizal, Atikah Nurhayati

Asian Journal of Fisheries and Aquatic Research, Page 28-38
DOI: 10.9734/ajfar/2020/v6i130089

Bandung District is one district in the province of West Java, which has a lot of potentials, one of which is the aquaculture sector. According to data from the Department of Marine and Fisheries of West Java province in 2016, the number of fisheries production reached 13.326 tonnes of Bandung regency. The purpose of this study is to analyze and devise appropriate policy recommendations for the development of aquaculture in Bandung. The method used in this research was the case study method. Analysis of the data used in this research is using the Soft Systems Methodology approach. Based on the approach to the problem of unstructured problems using existing condition which includes technical and production aspects, institutional aspects and aspects of human resources. The research was conducted in July 2019 - August 2019 in Bandung. Respondents in this study consisting of 5 people from 3 cultivators and 2 people from government agencies. The draft recommendation for government policy in the development of aquaculture in Bandung District, including repair of infrastructure, spatial planning in allocating land fish breeding in the area of fisheries management area corresponding to the parameters by optimizing land, mentoring programs on a group of fish farmers and seedlings or capital as a common practice, it is often done socialized about government policy. The clarity of the rule of law for the perpetrators of fish farmers, facilitate the making of fisheries licenses and training and extension done regularly and intensely.

Open Access Original Research Article

Spatial Distribution of Phytoplankton in Jatigede Reservoir, West Java, Indonesia

Rima Nabilah Haifa, Zahidah Hasan, Heti Herawati, Isni Nurruhwati, Asep Sahidin

Asian Journal of Fisheries and Aquatic Research, Page 39-48
DOI: 10.9734/ajfar/2020/v6i130090

Jatigede Reservoir has water input from the Cimanuk River. This river has gone through several anthropogenic activities that can affect its waters. Changes in conditions can occur due to changes in ecosystems carried out by several ecological aspects, one of which is the distribution of biota structures. The purpose of this study is to map the distribution of phytoplankton through spatial distribution both horizontally and vertically at the Jatigede Reservoir, West Java. The study began in July 2019 until September 2019. This research uses survey method. Sampling was carried out at 4 stations on the surface, half of the compensation depth, and compensation depth. The water parameters analyzed are transparency, temperature, depth, current, pH, CO2, BOD, DO, NO3-, PO43-, NH3, fitoplankton abundance, diversity index and dominance index. The results showed that 49 genera from 11 classes and 5 phyla were identified. Diversity index during the study reached between 0.904-2.062 and the dominance index was in the range of 0.267-0.681. The highest phytoplankton composition at each station and depth was found in the Bacillariophyceae class as much as 59.65% with an average abundance of 5523 ind/L.11 phytoplankton classes found during the study were identified at all observation stations, except in the eustigmatophyceae and mediophyceae classes.