Fisheries Extension Research Articles

Fisheries Extension Workers’ Competence, Challenges and Fisherfolk’s Farming Technology Practices in Zamboanga City: Basis for Intervention

The study is an investigation of the level of competence and challenges of Fisheries Extension Workers and its relationship to the fisherfolks?s farming technology practices in Zamboanga City. The study secured the responses of 12 Fisheries Extension Workers (FEWs) from the Office of the City Agriculturist and 145 fisherfolk from Tumaga, Ayala and Culianan Agricultural Districts. The study employed a descriptive-correlational-quantitative research design. The results of the study revealed that FEWs are highly competent in seaweed production and are challenged in the implementation of fisheries extension programs. Furthermore, the fisherfolk highly practiced the farming technologies imparted to them by the FEWs. However, the competence of FEWs has no significant relationship to the farming technology practices of fisherfolk. Likewise, there is no significant difference in the competence of FEWs when data are categorized to profile. The study recommends continuous trainings and retooling of FEWs to further improve the level of competency. It also encourages the validation of the challenges encountered to improve the fisheries extension programs in the ground. Finally, it calls for the conduct of Technology Demonstration Projects in major seaweed-producing barangays for the fisherfolk to develop and apply the right farming technologies wherein actual seaweed farming activities can be applied, tested, modified and improved.

Perceived Knowledge and Attitude of Fisheries Extension Professionals on Usage of ICTs in Tripura

Applications of Information and Communication Technologies (ICTs) offer excellent possibilities for strengthening transfer of technology between research and extension systems and onward transmission to the end-users. The study aims at studying the perceived knowledge and attitude levels of fisheries extension professionals of Tripura on the usage of ICTs concerning their socio-personal characteristics and explores the associated challenges. Data were gathered by pre-tested semi-structured interview schedule from completely enumerated 81 extension professionals of the department of fisheries, posted in the three purposively selected districts of Tripura during April- August 2021. The majority of respondents belonged to the middle age group (61.73%) and had medium level knowledge (78.57%) and attitude (85.18%) towards the use of ICT tools. Age and designation were negatively correlated, whereas education was positively and significantly correlated with knowledge and attitude level of fisheries extension professionals on usage of ICT tools separately. The Directorate of Fisheries of the state should develop meticulous strategies for each level of fisheries extension professionals to address the main challenges related to the use of ICT tools revealed in the study, which may bring a paradigm shift in fisheries farm information communication.

Socio-professional dimensions of fisheries extension professionals in tripura: A descriptive study

Fisheries extension professionals have been playing an important role in expanding the scientific fish culture practices in Tripura towards meeting up the growing demand for food fishes. In this perspective, it is important to study their profiles which can certainly be helpful in devising effective professional management strategies. Thus, the present study was conducted in two purposively selected districts of Tripura i.e. West Tripura and Unakoti to find out the socio-personal vis-avis professional profiles across different categories of fisheries extension professionals. Structured interview schedule was administered to the respondents and results revealed that majority of the respondents were male (84.14%) and had an educational qualification of B.Sc. (25.74%) and 27.59 per cent of the Fishery Officers had Bachelor of Fisheries Science (B.F.Sc.) qualification, for whom it was the desired entry-level qualification. Family size of the respondents was 3.93 (SE ±0.14). 11.02 per cent of the respondents had a joint type of family structure, while 89.98 per cent had nuclear families. Majority of them always (49.41%) participated in different associations (73.56%). Among different social media platforms, WhatsApp (87.18%) was found to be accessed by majorities followed by Gmail (66.92%) and Facebook (46.58%) with an average duration ofusage of 2.39 hours per day. As part of the professional profile of the respondents, majorities were posted in close proximity to their residence and had been ‘directly’ recruited (59.77%). On an average, 17.84 fish farmers were attended by an individual respondent per day. 95 per cent of them reported that they did not avail any opportunity to pursue higher studies but 89.74 per cent had undergone in-service training programmes. The average service duration of the respondents was found to be 21.16 years but majority of them (95.52%) had not received any recognition during their service period.

New Administrative Territories in Indonesia and its Implications to Fisheries Extension Activities

Democratization process in Indonesia is implemented, among other thing, through the enactment of Decentralization policy nation-wide. Fisheries extension activities are activities that are also impacted directly and indirectly by the policy. By using qualitative indicative approach at provincial level, this study was conducted accordingly. It was found that no substantial indication that the decentralization policy led to a better performance of fisheries extension at provincial level. Moratorium policy for the establishment of new administrative territories is therefore supported by this result of the study.

Penerapan pemberdayaan masyarakat KUB penangkapan ikan melalui penggunaan Fish Finder di Kecamatan Sei Tualang Raso, Kota Tanjungbalai, Sumatera Utara

Sei Tualang Raso Subdistrict is one of the sub-districts in Tanjungbalai City, North Sumatra which has potential in the field of capture fisheries, which has 834 Capture Fisheries Households (RTP) which are incorporated into 3 Joint Business Groups (KUB) and have an average catch 2.100.4 kg/month with an income level of Rp. 28,460,000,-/month. The low level of income obtained is because the technology used is still traditional and has not used a fish finder. The purpose of this activity is to increase income and the role and function of the group as a forum for cooperation through the use of fish finder tools. The method used through the fishery extension program is in the form of group meetings, demonstrations of methods and conducting extension evaluations.

Content Analysis of the Freshwater Aquaculture Cyber Extension Materials in Indonesia

This study aims to analyse the content of freshwater aquaculture cyber-extension materials presented on the MFCE website, which the Indonesian government controls. The research sample is all extension materials presented during 2013-2017, comprising of 183 titles of text, 29 titles of graphics, and 53 titles of video—sample selection by the census. The NVivo 12 Plus software was used to analyse the fish species, aquaculture management, extension material nature, and media element size presented on the website. The results showed that the three media (text, graphic, and video) presented all the six fish species of high economic value. The videos presented 58.49% about the nile tilapia (<em>Tilapia nilotica</em>) species, while graphics and texts presented more on catfish (<em>Clarias batrachus</em>), almost 60% on average. These media also presented all the seven aquaculture management elements. Graphics and texts presents more about pond preparation, while the videos presents more about fish feed management. The texts and graphics extension media size are quate ideal. Most of the text material are 700-1,700 words, and the graphic measures 380x285 pixels (two-thirds of the gadget screen). At the same time, the video duration is ideal (4.5 - 9 minutes), there are very few, only 33.96%. Most of the extension materials are in the form of recommendations, and not problem-solving. This research can there are a guide in designing a ideal content of aquaculture fisheries extension materials in Indonesia.

PERCEPTIONS OF THE FARMERS AND FISHERY EXTENSION OFFICERS ON CLIMATE CHANGE PARAMETERS AFFECTING AQUACULTURE

Actors involved in promoting aquaculture have very rarely taken into account the perceptions of practicing farmers on climate change parameters and their mitigating measures as an adaptation strategy. Study establishes a significant positive relationship (Spearman's Rank Correlation Coefficient, ‘ρ’ = 0.60, p<0.01) between perceptions of farmers and fishery extension officers (FEOs) on various climate change parameters affecting aquaculture. A sample of 368 farmers and 102 FEOs was selected from 11 states in India using stratified random sampling method with proportional allocation during 2008-09 to 2011-12. Out of 30 climate change parameters perceived both by farmers and FEOs; rising atmospheric temperature, deforestation, increase in water pollution, increase in CO2 level in atmosphere, extreme summer, silt deposition on the river/canal bed and increase in obnoxious gas are the major parameters affecting aquaculture. As the FEOs are over-burdened with routine official work along with other non-core activities, they are able to guide the farmers neither in time nor on the spot. Study suggests that without waiting for FEOs, the farmers can proceed independently in adapting relevant mitigating measures against various climate change risks. The planning for aquaculture projects should be based not only on technical aspects but also social aspects like perceptions of the practicing farmers. Key words: Climate change, aquaculture, perception, Spearman rank correlation coefficient

The effect of various decomposers on quality of organic fertilizer originated from solid waste of super intensive shrimp pond

This study aims to evaluate and compare the nutrient content of organic fertilizer originated from shrimp pond waste, which use commercial decomposers and indigenous decomposers. The research was carried out at Research Institute for Coastal Aquaculture and Fisheries Extension (RICAFE), Maros, South Sulawesi, Indonesia. The study used a completely randomized design (CRD) with four treatments and 3 replications. Solid waste of shrimp pond with several types of bio activators was used in this study. The treatments were types of bio activators, namely: BIO (A), TR-04 (B), EM4 (C) and decomposer bacteria isolated from pond waste ISO (D). The composting time lasted for 30 days. Observed variables were macronutrient content (C-Organic, N-Total, C/N ratio, P2O5 and K2O) and microelements (Fe, Mn, Zn, Cu) as well as temperature and pH of the composting media. The results showed that different bio activators significantly affected the quality of pond waste organic fertilizer (p <0.01). Nutrient contents (C-Organic, C/N ratio, P2O5, and K2O, Fe, Mn, Zn, Cu) were not significantly different (p> 0.05), while N-total value was significantly different (p <0.05). The quality of produced compost in all bio activator treatments (BIO, TR, EM, and ISO) met Indonesian National Standard (SNI) 2004 and standard of regulation of the ministry of agriculture republic of Indonesia (PERMENTAN) 2019. This study can be an alternative for treating waste of shrimp culture industry.

Fish hydrolysate supplemented diet improved feed efficiency and growth of coral trout (Plectropomus leopardus)

Fish hydrolysate contains hydrolyzed protein which comprised of peptides and free amino acids that are easily digested and absorbed by fish. This study aimed to determine the effectiveness of fish hydrolysate in improving feed efficiency and growth of coral trout. Five experimental diets were formulated to contain 47% protein and 12% lipid with different sources and levels of fish hydrolysate. Diet-1 and diet-2 were added with crustacean hydrolysate at 2% and 4% levels, respectively. Whereas diet-3 and diet-4 were supplemented with 2% and 4% of tuna hydrolysate. Diet-5 was formulated without fish hydrolysate supplementation (control). The diets were prepared as dry pellet with 3 mm diameter. Coral trout juveniles were produced in the hatchery of Institute for Mariculture Research and Fisheries Extension (IMRAFE), Gondol-Bali with the average body weight of 7.6 ± 0.9 g. The juveniles were maintained in 15 fiber tanks, 400L in volume, with a density of 40 fish/tank. The experiment was designed with a completely randomized design (CRD) with 5 treatments (different diets) and 3 replications for each treatment. The fish were fed the experimantal diets three times every day at satiation level for 84 days of feeding experiment. Results of the experiment showed that increased supplementation of fish hydrolysate from 2% to 4% in diet tended to improve fish growth performance. However, the best growth performance, in term of weight gain (WG) and specific growth rate (SGR), was obtained in fish fed diet supplemented with 4% crustacean hydrolysate. This growth performance was significantly higher than of the other treatments (P<0.05). The best feed efficiency (FE) and protein efficiency ratio (PER) were also obtained in fish fed diet supplemented with 4% crustacean hydrolysate. The results of the present study showed that supplementation of 4% crustacean hydrolysate in diet effectively improved the growth and feed efficiency of coral trout.

The nursery of Litopenaeus vannamei at different density using aeration system on pond

The nursery of shrimp is an intermediate effort to connect hatchery and grow-out process, wherein shrimp fry was rear in a controlled process in a certain time before reared on pond. The study was aimed to evaluate the growth and, survival rate of white shrimp (L. vannamei) under different stocking density in nursery phase on pond. The nursery of L. vannamei was carried out at experimental pond installation of Research Institute for Coastal Aquaculture and Fisheries Extension (RICAFE) in Maros-South Sulawesi using a 5.5 x 11 m2 size of ponds, which was equipped with a bottom aeration system. The water depth of pond was 40 cm. Pond preparation was done by pond repairing, maintaining, drying, and eradicating using 20 ppm of saponin, flushing and water filling gradually until maximum of water level. The fry of L. vannamei (PL-10) with an average initial weight of 0.002g, which obtained from hatchery, were stocked. The treatments were stocking density of L. vannamei fry namely 1,653 individuals/m3 or 40,000 individuals/pond (A) and 909 individuals/m3 or 22,000 individuals/pond (B). Commercial powdered feed was given 3 times/day in 50–100% of biomass weight calculation base. The parameters observed were growth rate, survival rate of white shrimp and water quality condition. The results showed water quality variables including temperature, dissolved oxygen, pH, salinity, and alkalinity were in a suitable range for growth and survival of L. vannamei. The survival rate of L. vannamei in 21 days nursery was 86.40-95.61% and the final weight ranging from 0.292 to 0.320g/ind.

Prevention of White Spot Syndrome Virus (WSSV) in tiger shrimp Penaeus monodon using boiled mangrove leaf extract Sonneratia alba in laboratory scale

This study aimed to prevent White Spot Syndrome Virus (WSSV) disease in tiger shrimp Penaeus monodon using the boiled extract of Sonneratia alba mangrove leaves. The experiment was conducted in the wet laboratory of The Research Institute for Brackish Water Aquaculture And Fisheries Extension using a plastic container of 50 L volume filled with 30 L of seawater at a salinity of 28 ppt. 30 tiger prawns/container in size 1-2.0 g each shrimp used as test animals. Prevention of WSSV disease is done by injecting the extract of Sonneratia alba from boiling fresh leaves (1 kg in 5 L of water cooked to 2.5 L) and dry mangrove leaves (300 g in 5 L of water cooked to 2.5 L). The treatments tried were: A) 1% water boiled of fresh leaves; B) 4% water boiled of fresh leaves; C) 7% water boiled of fresh leaves; D) 10% water boiled of fresh leaves; E) 1% water boiled of dry leaves; F) 4% water boiled of dry leaves; G) 7% water boiled of dry leaves; H) 10% water boiled of dry leaves; I) Positive control (shrimp injected with WSSV without mangrove extract), and J) Negative control (without WSSV and mangrove extract) which was repeated three times. Each concentration of mangrove extract was mixed with WSSV antigen solution in a ratio of 2: 1 and injected as much as 100 microliters for each shrimp. Water change was carried out every two days at 20%. Feeding is done 2 times a day as much as 10-20% of the total biomass per day. Shrimp reared for 10 days. The parameters observed included the mortality of tiger shrimp which were observed every day. Shrimp immune parameters including THC, DHC, Pro-PO, and WSSV infection were observed on days 1, 3, 5, 7, and 9. The results showed that the mortality rate of tiger shrimp in treatments that did not use mangrove extracts was higher than others. as well as the mortality rate of shrimp in the treatment using boiled fresh leaf extracts was higher than those using boiled dry leaf extract at the same concentration. The WSSV concentration used in this experiment was thought to be high so that there was no visible effect of injury in the incidence of shrimp mortality at the end of the study.

Maintenance and spawning on yellowfin tuna broodstock reared in floating net cage

Yellowfin tuna (Thunnus albacares) is one of the fish species that have important economic value which is expected to become one of foreign exchange that can give solution to national economy. Hatchery technology of yellowfin tuna performed at the Research Institute for Mariculture and Fisheries Extension Gondol has been successfully spawned. However, the quality and quantity of eggs produced is still not optimal. The purpose of this study was to determine the performance of spawning on yellowfin tuna broodstock reared in floating net. This research was conducted in cage with a diameter of 48.8 m with a depth of 8 m, filled 90 fishes yellow fin tuna with weights ranging between 50-70 kg per fish. Feed given is: fresh fish, squid and added vitamin C and vitamin E. The study was conducted for 11 months from January to November 2017.The results showed that the yellowfin tuna could spawn monthly. The highest spawning frequency occurred in July at 17 times. The highest total number of eggs harvested was 8,740,350 in October. Hatching rate between 50-92%. Survival activity index (SAI) is 1.8-3.5%. Survival rate of yellow fin tuna during maintenance reached 92.2%.

High density aquaculture of white shrimp (Litopenaeus vannamei) in controlled tank

The study was aimed to evaluate the growth, survival rate and production of white shrimp (L. vannamei) culture under different stocking density in controlled tank. This research was conducted at Experimental Pond Installation. Research Institute for Coastal Aquaculture and Fisheries Extension in Maros Regency, South Sulawesi. Indonesia. Juveniles of white shrimp size in weight 0.14 g/ind were cultured for 70 days in three different stocking densities: 100, 200 and 300 ind/m3 in a total of nine fibre tanks sized of 2 m3. The study used Completely Randomized Design (CRD). with three replications for each treatment. The parameters observed were growth rate, survival rate, production, feed conversion ratio of white shrimp and water quality condition. The results showed that the different stocking density had a significant effect (P <0.05) on growth, survival rate and production of white shrimp. The final weight and absolute weight of vaname shrimp decreased as density increased to 300 ind/ m3. The final weight of vaname shrimp in treatments A. B and C were 13.70 g/ind, 12.27 g/ind and 10.90 g/ind respectively. Survival rate and production of white shrimp in this study ranged from 80-95% and 1.24-2.42 kg/m3 respectively. Water quality measured during the experiment was suitable for the growth of white shrimp.

Spawning technique of yellowfin tuna (Thunnus albacares) infloating nets cage

Tuna is a potential commodity because it contributes the largest fishery export. Tuna aquaculture is one of the steps that can be taken to maintain the stability of tuna fishery production. The aquaculture method using floating net cages is the most productive aquaculture technique. The study has performed in the Central Research of Sea Cultivation and Fisheries Extension Gondol, Bali. The purpose is to know how the technique of spawning yellow fin tuna (T. albacares) in floating net cages. The control issues and obstacles encountered during the process of raising the broodstock yellow fin tuna. Spawning of yellow fin tuna is done naturally. Broodstock female of yellow fin tuna used from catching process that is choosing broodstock candidate of tuna fish with weight 5 kg and length +25 cm. The weight ratio of yellow fin tuna between male and female is 3:1. Water quality parameters for yellow fin tuna larva among others: temperature 29-30°C; pH 8.2; and DO 6.0 ppm. Based on the calculation, the obtained hatching raate of yellow fin tuna is at 75.34% and the Survival Rate is 0%. Artificial feeds used in the maintenance of larvae are Nannochloropsis oculate and Brachionus rotundiformes.

Effect of Different Stocking Density of Snakehead Fish (Channa striata) Cultured in Recirculation Aquaculture System

In Indonesia, the use of such recirculating aquaculture systems (RAS) is rapidly increasing. The purpose of this study was to investigate the growth, blood chemistry, and water quality of snakehead fish (C. striata) maintained in RAS at varied stocking densities. The RAS was established at the Bogor-based Research Institute for Freshwater Aquaculture and Fisheries Extension. The study employed a completely randomized study using 3 various densities: A). 1 individual L-1, B). 3 individual L-1 and c). 6 individuals L-1, each using three replications. The average weight and length of snakehead fish used is 1.50±0.63 g and 6.20±0.94 cm. Growth performances such as survival rate, weight, and length gain, food conversion ratio, specific growth rate, and final biomass were observed during the research. Blood chemistry parameters analyzed were blood glucose, triglycerides, and total protein. The water quality characteristics were evaluated: pH, temperature, dissolved oxygen, total ammonia nitrogen, nitrate, nitrite, and orthophosphate. The analysis indicates that snakehead fish's growth performances and blood chemistry parameters differed considerably (P&lt;0.05) across all density treatments, with 3 individual L-1 showing the best growth performances. The RAS utilized in snakehead fish culture kept the water quality parameters steady throughout the study.

Performance analysis and mentoring strategy of fish farmers groups in Muntilan Sub District, Magelang Regency, Central of Java Province

The purpose of this research was to identify performance and determine the strategy for improving the performance of fish farmers groups in this area, which has excellent and dominant potential in freshwater aquaculture. There were about 131 fish farmers and 11 fish hatchery and rearing groups from this region's six research sample villages. The identification results of the fishbone diagram analysis showed that the fish farmer group's growth and development, in general, were still low, based on several dominant categories, namely infrastructure, fisheries extension performance, contribution performance, and the interests of fish farmers. In detail, the causes were: 1) insufficient facilities and infrastructure; 2) management in implementing fish farmers groups function has not run optimally; 3) the lack of fisheries extension workers; 4) the lack of contribution among group members; 5) relationship between fish farmers groups and local government institutions was still low; 6) fisheries activities were dominated by certain people; and 7) the interests of the fish farmers to form groups were still low. As the results of the SWOT analysis, the fish farmers group's performance development strategy was carried out by improving the performance of group roles and functions through mentoring and facilitating group activities.

The effect of rearing media salinity on survival, growth, and blood glucose of juvenile mahseer (Tor soro)

Optimization of Mahseer (Tor soro) rearing water media supports seed mass production. This study aims to obtain optimal salinity for production performance in rearing Tor soro. The research was conducted at the Wet Laboratory of the Research Institute for Freshwater Aquaculture and Fisheries Extension Bogor. The test fish was Tor soro with 1-2 cm in body length. Experimental design using completely randomized design with four treatments of salinity: 0, 2, 4, and 6 ppt and three replications each. Twelve aquarium glasses with a volume of 50 L each as experiment containers and stocking density was one fish/L. Tubifex worms were fed at satiation, fish were reared within 40 days. The observed parameters were survival rate, absolute growth and length, specific weight growth rate, blood glucose level, and osmolarity. Data analysis using ANOVA test and Duncan for post hoc test. Water quality parameters, blood glucose, and osmolarity were analyzed descriptively. The results showed that two ppt of media salinity is optimal for the rearing of Tor soro to obtain the maximum of production performance (survival rate, absolute growth, and length, specific growth rate) and the best condition for blood glucose and level osmotic work.

Relationship between Gender and Opinion Leadership among the Fish Farmers of Chhattisgarh

The ratio of fish farmers to fisheries extension professionals was 1:1000 which is too low. Para-extension functionaries can fill up this gap in the fisheries sector to improve the production and productivity of fishers. The opinion leaders from the local fish farmers community will help identify fish farmers who can further transfer the knowledge concerning how to fish to others through their diffusion network. This study was undertaken to analyze gender roles in fish farming and their relation with opinion leaders. It was observed that 90% of male fish farmers had control of fisheries/family resources, and 97 per cent of fish farmers were found to have contact with male opinion leaders. At the same time, 33% of female fish farmers were contacted by shelf help groups and local progressive farmers. The study shows that the opinion leaders influenced the fish farmers’ diffusion network and their knowledge about how to fish. To involve women in the fisheries sector, empower women, there is also a need to select opinion leaders preferred by women fish farmers.

Performance of yellowfin tuna spawning (Thunnus albacares) in floating net cage

Yellowfin tuna (Thunnus albacares) is an important export commodity in Indonesia. This tuna has an important economic value, so it becomes one of the foreign exchange that can provide solutions to the national economy. Yellowfin tuna hatchery technology that was carried out at the Research Institute for Mariculture and Fisheries Extension, with the management of broodstock maintenance in floating net cages has successfully spawned. However, the quality and quantity of eggs produced are still not optimal. This research was conducted in floating net cage with a diameter of 48.8 m with a depth of 8 meters, filled with 30 fishes of yellowfin tuna with body weights ranging from 60-80 kg per fish. Feed given is: fresh fish, squid and added vitamin C and vitamin E. The parameters observed were : spawning frequency, number of eggs produced, hatching rate, egg diameter, diameter of oil globule and the survival activity index value of newly hatched larvae (SAI). As supporting data, water quality observations were carried out which included: temperature, salinity, and water brightness on the floating net cage. This research was conducted for 10 months, from January to October 2019. Data analysis was carried out in discriptively. The results showed that yellowfin tuna reared in floating net cage can spawn well. Spawning occurs every month. The highest spawning frequency in October is 20 times spawning. While the highest total number of eggs successfully harvested was 11,030,000 eggs in August. Hatching rate between 70.5-92.2%. The survival activity index of newly hatched larvae (SAI) is 2.4-3.7

Growth performance and survival rate of catfish (Pangasianodon hypophthalmus) juvenile which is reared in recirculation system

Although recirculation is a cultivation system that has been tried in various commodities, but the effectiveness of this system to the growth and survival of catfish juvenile has not been done. This study aims to determine the effective-ness of recirculation system on growth performance and survival rate of catfish juvenile (Pangasianodon hypophthal-mus). The research was conducted from 11 October to 30 November 2019 at hatchery unit Department of Fisheries Extension, Jakarta Technical University of Fisheries. This study used experimental method with 3 treatments, namely Control (K: 100% Bioball + Bacillus sp.), Treatment 1 (P1: 50% Bioball + 25% zeolite + 25% resin + Bacillus sp.) and Treatment 2 (P2: Bioball 25 % + zeolit 50% + resin 25% + Bacteria Bacillus sp.). The catfish used in this study was measured 0.08 + 0.02 g. Ind.-1. The fish were kept in a concrete tub of 100 cm x 150 cm x 70 cm with water volume of 750 liters tub-1. Stocking density of fish was 5 fish liters-1. Fish juveniles were fed with commercial feed with a dose of 3% of fish biomass with frequency of 3 times a day-1. Observation fish growth and water sampling for monitoring of the abundance of nitrogen-decomposing bacteria and water quality were carried out every 15 days. The results showed that the highest growth weight of catfish seedlings was found in treatment P1 (0.447±0.142b) compared with K (0.377±0.047a) and P2 (0.363±0.057a) treatment. The values of survival rate for K, P1 and P2 treatments were 51±8, 54±4 and 52±8, respectively. This result implies that no significant difference in the survival rates in all treatments.