Asian Journal of Fisheries and Aquatic Research
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Species Composition of Aquatic Resources in Lantebung Mangrove Ecotourism Area, Makassar, Indonesia
No full textThe mangrove ecotourism area is an alternative place for recreation for the community, so it is thought to disturb aquatic resources. This study aims to analyze the species composition of aquatic resources in the Lantebung mangrove ecotourism area. Data collection used a survey method, and the research was conducted from October to November 2023 in the Lantebung mangrove ecotourism area in Makassar, Indonesia. The results showed that the composition of fish species consisted of five dominating fish species, namely Tawes (Garres abbreviatus) 3904 fish (39.40%), Peperek (Nuchequula nuchalis) 2389 fish (24.11%), Peperek (Eubleekeria splendens) 1021 fish (10.30%), Rejung fish (Sillago robusta) 975 fish (9.84%), and Peperek (Leiognathus longispinis) 910 fish (9.18%). The diversity of aquatic resources included 29 species of fish with 9985 individuals, 19 species of crustaceans with 117 individuals, ten species of Mollusca with one individual in each species, and one species of Cnidaria with one individual. The highest fish species composition is Tawes fish (Garres abbreviatus), and the lowest type is Cnidaria
Suitability and Carrying Capacity of Aquatic Environment for Shrimp Culture in Sarjo District, Pasangkayu Regency West Sulawesi
No full textThe potential of coastal and marine resources in Indonesia is so diverse both in terms of quantity and quality, should be able to contribute greatly to the economic growth of the State of Indonesia. The purpose of this stydy is to assess the level of land suitability and carrying capacity of the pond environment for shrimp culture in Sarjo District Pasangkayu Regency. The research was conducted using survey method, measuring biological, physical and chemical parameters. The observed data consisted of temperature, turbidity, TSS, current direction and speed, tides, pH, salinity, dissolved oxygen, ammonia, nitrate, nitrite, phosphate, BOD, COD, BOT, and plankton. Based on biological, physical and chemical data, an analysis of the suitability of the pond area was carried out using the geographic information system (GIS) Arc View GIS Application Version 3.3. The results of the level of suitability of land for shrimp culture in Sarjo District was very suitable 154.88 hectare; 2) Suitable 77.16 hectare and quite suitable 27.26 hectare. Overall land for aquaculture in each area is traditional 732.95 hectare, semi-intensive 1,589.12 hectare and intensive 247.83 hectare. The environmental carrying capacity of intensive shrimp cultivation ponds with an estimated maximum production of 42.63 tons ha-1, with a permitted pond area that does not exceed the environmental carrying capacity is 166.07 ha; semi-intensive cultivation with a maximum production of 153.49 tons ha-1 MT-1, the permitted pond area so as not to exceed the environmental carrying capacity is 597.85 hectare, traditional cultivation with a maximum production of 3.4 tons MT-1 with a supported pond area of 2,569 ha in Sarjo District, Pasangkayu Regency
Heavy Metal Intake by Fishes of Different River Locations in Bangladesh: A Comparative Statistical Review
No full textBangladesh a nation with a high population density, gets all of the protein it needs from river fishes. The observation is very alarming that heavy metals polluted the major river water by the growing garment washing, dyeing and textile, fertilizer, cement, tannery, metal, electrochemical and pharmaceutical industries were the main culprits that don’t have proper effective effluent treatment plants (ETP). High-value heavy metals in industrial area river fish as chromium (Cr) 164.73 mg/kg in Heteropneustes fossilis (stinging catfish) at Buriganga River, Hazaribagh, zinc (Zn) 309.47 mg/kg in Mastacembelus armatus (Bain) fish at Bangshi river, Savar, copper (Cu) 26.33 mg/kg in Mastacembelus armatus (Bain) at Bangshi river, Savar, arsenic (As) 5.64 mg/kg in Heteropneustes fossilis (stinging catfish) at Bangshi river, Savar, lead (Pb) 18.16 mg/kg in Channa punctatus (Taki) at Buriganga river, Hazaribagh and cadmium (Cd) 2.03 mg/kg in Heteropneustes fossilis (stinging catfish) at Buriganga river, Hazaribagh were observed. The two rivers are identified as most contaminated by heavy metals one is the Bangshi River, Savar, Gazipur and another one Buriganga River, Hazaribagh. The main reason for the contamination of these two rivers was uncontrolled industrialization around Dhaka and in Hazaribagh, a huge number of tanneries have grown that use a huge quantity of Cr creating a threat to the ecosystem and even a serious health risk for humans. Heavy metals that fish consume are contaminating river water ecosystems. This contamination spreads to human bodies and is the cause of many serious ailments
Efficacy of Okra Leaf [Abelmoschus esculentus L.] Extract for Removal of Egg Adhesiveness During Artificial Propagation of African Catfish [Clarias gariepinus, Burchel 1822]
No full textThis study evaluated the most effective immersion duration and concentration of okra leaf extract for removing the adhesive properties of Clarias gariepinus eggs. For the breeding experiment, a male and a female C. gariepinus broodstock, weighing 1.3 kg and 1.4 kg respectively, were used. The okra leaf extract was tested at three different concentrations: 1%, 3%, and 5%. Tannic acid at a concentration of 0.75 g per liter of water served as the reference de-adhesion agent, while plain water (without tannic acid or plant extract) was used as the control. The fish eggs were rinsed with the solutions for one, three, and five minutes. Each concentration and rinsing time were recorded in triplicate. The generated data was subjected to an Analysis of Variance Test, followed by a third order polynomial regression analysis to determine the best concentration and immersion period for removing C. gariepinus egg adhesiveness. The results of the study showed that the use of okra leaf extract at 1% lowest concentration and 1 minute immersion period was not significantly different (p>0.05) from the use of tannic acid solution. Therefore, this study found that okra leaf extract at 1% concentration with a one-minute immersion period can effectively remove egg adhesiveness and increase hatching in C. gariepinus
Estimation of Length-Weight and Condition Factor of Indian Major Carps and Selected Indigenous Fish Species in Chandrakeshar Reservoir, Dewas (M.P.), India
No full textThis paper investigates the length-weight and condition factor of Indian major carps and selected indigenous fish species in Chandrakeshar Reservoir, located in Dewas, Madhya Pradesh, India during January, 2021 to December, 2023 throughout different seasons. The study aims to contribute valuable insights into the growth patterns and overall health status of these fish populations in the reservoir. A comprehensive survey was conducted to collect length and weight data from various individuals representing major carps, including Catla catla, Labeo rohita, and Cirrhinus mrigala, along with indigenous species prevalent in the region. The length-weight relationships for each species were determined using established methodologies, providing essential parameters for growth assessments. Concurrently, the condition factor (K) of fish well-being and habitat suitability, was calculated to evaluate the overall health and adaptability of the fish in the Chandrakeshar Reservoir. Results provides the basic information regarding fish productivity which may be suitable for better management of Indian major carps and indigenous fishes in Chandrakeshar reservoir
Isolation and Molecular Identification of Termite Nest Associated Bacteria with Potential as Vibriosis Biocontrol Agents in Shrimp Farming
No full textThe potential for aquaculture development in Indonesia, especially the shrimp farming industry, is projected to continue to increase. However, the current growth in aquaculture production is in line with the increasing number of disease outbreaks and can affect the production, profitability, and sustainability of the industry worldwide. Vibriosis is a major challenge in aquaculture that causes fish mortality in large numbers and rapid times. Vibriosis treatment is still limited to the same antibiotics in humans and animals. For this reason, alternative microorganisms that are more specific and selective in inhibiting vibrio are needed, one of which is the exploration of termite nest association bacteria. This study aims to obtain isolates of termite nest association bacteria that are antivibrio. Isolation of bacteria using ISP2 media. Furthermore, antagonistic screening was carried out against V. alginolyticus and V. harveyi bacteria. Isolates performed morphological and biochemical characterization followed by molecular identification with 16s rRNA sequence analysis using universal primer 27F 1492R. Isolation results obtained 15 isolates with varying colors and shapes. Ten isolates are Gram-positive bacteria and 12 isolates have a positive catalase test. Seven isolates have antivibrio activity, namely isolates SR9, SE1, SE4, SE5, SE6, SE7 and SE8. Isolate SE1 showed the best antivibrio activity capable of inhibiting the growth of V. alginolyticus and V. harveyi bacteria with an inhibition zone value of 3.5 cm and 4 cm, respectively. The results of the molecular analysis showed that isolate SE1 has 99.65% similarity with Bacillus amyloliquefaciens strain HY2-1. These bacteria have characteristics that have the potential to be used as probiotics in the aquaculture industry, especially vibrio biocontrol agents
The Utilization of IoT Using Grow My Fish App in African Catfish (Clarias sp) Cultivation Employing Biofloc Technology in Apung Village, Bulungan Regency, North Kalimantan Province
No full textThis research aims at introducing the Grow My Fish application (or app) as an IoT for collecting and processing data on water quality in biofloc tank for cultivators. IoT in itself has been widely used by several sectors, and one of them is the fisheries sector. Grow My Fish is an app specifically designed to support research in the fisheries field. This research was conducted in Apung Village, Tanjung Selor District, Bulungan Regency from October through December 2023. Biofloc is an innovation in fisheries field. It is known as an eco-friendly innovation thanks to its ability to process the wastes produced by fish into natural feed in the assistance of the probiotic that was mixed into the water. However, the persistent main issue until recently in this biofloc innovation is water quality. Many cultivators so far recorded their water quality measurements on a book. This made it a little hard for these cultivators to process the data. For this reason, an IoT that facilitated cultivators in processing the data on water quality, mortality, fish weight, and amount of feed was born
Effectiveness of Reverse Osmosis (RO) Water on the Growth of Denison Fry (Puntius denisoni Day, 1865)
No full textThis research aims to determine the optimal addition of reverse osmosis water for the growth and survival rate of Denison fish fry. The preliminary test was carried out on 16-22 May 2022 and the main research was carried out on 4-31 July 2022 at Pt. Waris, Breedlife Fish Farm, and Central Jakarta. The research method was carried out experimentally using a completely randomized design (CRD) method consisting of five treatments with three replications, namely the treatment of 100% groundwater maintenance media, the addition of 25%, 50%, 75% reverse osmosis water and the use of 100% reverse osmosis water. . The fish used are Denison fish seeds with a size of 2-3 cm. Fish were treated for 28 days. The feed given is Tubifex sp worms. and given daily ad satiation. Parameters observed were water quality in the form of temperature, total dissolved solids (TDS), degree of acidity (pH) measured every day, and ammonia measured every week. The main parameters of this research are the specific growth rate (SGR) and survival rate (SR). Based on the research results, it was concluded that the addition of reverse osmosis water in the range of 25-50% resulted in the survival performance of Denison fry with a rate of 98% and a specific growth rate in the range of 3.14-3.39%
The Impact of Seaweed (Eucheuma cottonii) Fortification and Frozen Storage Conditions on the Chemical Composition of Tuna (Thunnus albacare) Sandwich
No full textTuna is an Indonesian fishery product that is one of the country\u27s primary foreign exchange producers. This research aimed to determine the optimal addition of Eucheuma cattonii seaweed and duration of storage at -18oC. (2) The second factor is storage duration at -18oC, with three levels: B1: 0 days (control), B2: 10 days, and B3: 20 days. In the proximate test, the water content, protein content, and lipid content were observed. The analysis of data was performed using SPSS version 12. The addition of 20% seaweed with a 20-day storage period yielded the lowest water content, as determined by the results. The maximum water content was found in the 10% seaweed addition treatment. The addition of 30% seaweed and storage for 20 days resulted in the lowest protein content, while the addition of 10% seaweed and storage for 0 days resulted in the highest protein content. The average fat content ranged from 0.7% to 1.14 %, indicating that the maximum fat content of the sandwich product was obtained by storing it at -18°C for 20 days with 10% seaweed. While the treatment of 30% seaweed with extended storage at -18°C or the control had the lowest fat content. The results of the analysis of the effect of adding seaweed and storage time at -18°C on tuna sandwiches indicate that the combination of treatment with the addition of 30% seaweed and storage at -18°C for 20 days can maintain the nutritional value of sandwich products. The tuna sticks with the greatest score on the proximity test
Length Weight Relationships of Small Indigenous Fish Parambassis ranga (Hamilton, 1822) from Ujani Wetland of Maharashtra, India
No full textLength- weight relationships parameters are useful in fisheries science to estimate weight of individual fish from its length. It can always be used for determination of condition indices and to compare life history and morphology of populations of given species. Parambassis ranga commonly called Indian glassy fish was investigated for the study of length-weight relationships (LWRs) from Ujani wetland, a dam constructed on Bhima river of Maharashtra state of India. During the study period of November 2021 to October 2022, total of 300 samples were collected from local fishermen and length-weight parameters were recorded in laboratory at Modern College, Ganeshkhind, Pune. The present study shows intercept (a value) of 0.0089. Slope (b value) was 3.2303 which lie in expected range of 2.5 to 3.5. The slope value was more than 3 i.e. above isometric growth value that indicates positive allometric growth of fish