Pub Date : 2023-09-04DOI: 10.9734/ajfar/2023/v25i2658
Ayudia Kusuma Dewi, Zahidah Hasan, A. Suryana, H. Herawati
Liquid waste from the cracker industry which is directly discharged into water bodies without prior treatment will cause water pollution which is characterized by a decrease in water quality. One alternative to reduce pollutant compounds biologically is to use the phytoremediation method. Phytoremediation is plant-mediated uptake of pollutants. This study aims to determine the best concentration of EM4 which is in symbiosis with Chlorella sp. in the process of reducing pollutant wastewater from the cracker industry. This study used a completely randomized design with five treatments and three replications. These treatments included PA (without adding EM4), PB (adding EM4 10 ml), PC (adding EM4 15 ml), PD (adding EM4 20 ml), PE (adding EM4 25 ml). The data obtained were analyzed statistically using Analysis of Variance (ANOVA). If the calculated F is greater than the F table then proceed with the Duncan's Multiple New Range Test (DNMRT) at the 5% level. The results showed that the addition of Chlorella sp. 800 ml (11,8 x 106 cells/ml) and the addition of 25 ml of EM4 is the best concentration in reducing the pollutant content of the cracker industrial wastewater. The PE treatment (EM4 25 ml) had a percentage decrease in the value of BOD5 83.82%, Ammonia of 99.91%, Phosphate of 95.78%, CO2 of 97.78%, and increased the density of Chlorella sp. to 52.08 x 106, DO from 1.7 mg/L to 5.9 mg/L, pH to 8.2, and temperature to 28.8°C. However, the BOD5 value is still very far above the quality standard so it does not meet the quality standard according to Government Regulation No. 22 of 2021 Class II and Class III concerning the implementation of environmental protection and management for fishing activities.
{"title":"Utilization Chlorella sp. with the Addition of EM4 as a Phytoremediation Agent on Samples of Liquid Waste in the Cracker Industry, Indramayu Regency","authors":"Ayudia Kusuma Dewi, Zahidah Hasan, A. Suryana, H. Herawati","doi":"10.9734/ajfar/2023/v25i2658","DOIUrl":"https://doi.org/10.9734/ajfar/2023/v25i2658","url":null,"abstract":"Liquid waste from the cracker industry which is directly discharged into water bodies without prior treatment will cause water pollution which is characterized by a decrease in water quality. One alternative to reduce pollutant compounds biologically is to use the phytoremediation method. Phytoremediation is plant-mediated uptake of pollutants. This study aims to determine the best concentration of EM4 which is in symbiosis with Chlorella sp. in the process of reducing pollutant wastewater from the cracker industry. This study used a completely randomized design with five treatments and three replications. These treatments included PA (without adding EM4), PB (adding EM4 10 ml), PC (adding EM4 15 ml), PD (adding EM4 20 ml), PE (adding EM4 25 ml). The data obtained were analyzed statistically using Analysis of Variance (ANOVA). If the calculated F is greater than the F table then proceed with the Duncan's Multiple New Range Test (DNMRT) at the 5% level. The results showed that the addition of Chlorella sp. 800 ml (11,8 x 106 cells/ml) and the addition of 25 ml of EM4 is the best concentration in reducing the pollutant content of the cracker industrial wastewater. The PE treatment (EM4 25 ml) had a percentage decrease in the value of BOD5 83.82%, Ammonia of 99.91%, Phosphate of 95.78%, CO2 of 97.78%, and increased the density of Chlorella sp. to 52.08 x 106, DO from 1.7 mg/L to 5.9 mg/L, pH to 8.2, and temperature to 28.8°C. However, the BOD5 value is still very far above the quality standard so it does not meet the quality standard according to Government Regulation No. 22 of 2021 Class II and Class III concerning the implementation of environmental protection and management for fishing activities.","PeriodicalId":168203,"journal":{"name":"Asian Journal of Fisheries and Aquatic Research","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117318937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-02DOI: 10.9734/ajfar/2023/v25i1655
Doni Prayoga, Zahidah Hasan, L. P. Dewanti, H. Herawati
The purpose of this research is to determine the water quality of Cibeureum Lake, Tasikmalaya City by analyzing the macrozoobenthos community structure. The study was conducted from September to November 2021 using a survey method with purposive sampling. Descriptive analysis was employed to analyze the observation data. The studi revealed the presence three classes and eight species, the species being Filopaludina javanaica, Pila ampullacea, Pomacea canaliculata, Melanoides turbeculata, Lymnaea rubiginosa, Indoplanorbis exustus, Chironomus sp., and Tubifex tubifex, with 3 species with the most composition being Pomacea canaliculata (28% ), Filopaludina javanaica (25%), and Melanoides turbeculata (13%).The results demonstrated that the water quality in Cieureum Lake, as determined by macrozoobenthos bioindicator, fell into the moderately polluted category. This is diversity indicated values ranged from 1.3 to 1.8, classifying the macrozoobenthos community as moderately diverse. The uniformity index value ranged from 0.57 to 0.66, indicating an unstable population conditions, suggesting moderate uniformity of macrozoobenthos in the lake. According to FBI (Functional Biological Index) score, Cibeureum Lake exhibit a range of water quality criteria from very good to fair. Station 2 and station 4 obtained excellent waters quality rating with an FBI rating 3.97 and 4.16 respectively. Station 1 obtained a good water quality rating with an FBI score 4.72, while station 3 received a sufficient water quality rating with an FBI rating 5.50. Consequently, from the results of this study the pollution status of Cibeureum Lake was ranged from slightly polluted to quite polluted.
{"title":"Assesing the Community Structure of Macrozoobenthos in Cibeureum Lake, Tasikmalaya, West Java, Indonesia","authors":"Doni Prayoga, Zahidah Hasan, L. P. Dewanti, H. Herawati","doi":"10.9734/ajfar/2023/v25i1655","DOIUrl":"https://doi.org/10.9734/ajfar/2023/v25i1655","url":null,"abstract":"The purpose of this research is to determine the water quality of Cibeureum Lake, Tasikmalaya City by analyzing the macrozoobenthos community structure. The study was conducted from September to November 2021 using a survey method with purposive sampling. Descriptive analysis was employed to analyze the observation data. The studi revealed the presence three classes and eight species, the species being Filopaludina javanaica, Pila ampullacea, Pomacea canaliculata, Melanoides turbeculata, Lymnaea rubiginosa, Indoplanorbis exustus, Chironomus sp., and Tubifex tubifex, with 3 species with the most composition being Pomacea canaliculata (28% ), Filopaludina javanaica (25%), and Melanoides turbeculata (13%).The results demonstrated that the water quality in Cieureum Lake, as determined by macrozoobenthos bioindicator, fell into the moderately polluted category. This is diversity indicated values ranged from 1.3 to 1.8, classifying the macrozoobenthos community as moderately diverse. The uniformity index value ranged from 0.57 to 0.66, indicating an unstable population conditions, suggesting moderate uniformity of macrozoobenthos in the lake. According to FBI (Functional Biological Index) score, Cibeureum Lake exhibit a range of water quality criteria from very good to fair. Station 2 and station 4 obtained excellent waters quality rating with an FBI rating 3.97 and 4.16 respectively. Station 1 obtained a good water quality rating with an FBI score 4.72, while station 3 received a sufficient water quality rating with an FBI rating 5.50. Consequently, from the results of this study the pollution status of Cibeureum Lake was ranged from slightly polluted to quite polluted.","PeriodicalId":168203,"journal":{"name":"Asian Journal of Fisheries and Aquatic Research","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130785159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-02DOI: 10.9734/ajfar/2023/v25i1656
Yuliadi, A. Sani
The objective of this study was to analyze the use dolomite in diet of whiteleg shrimp. It was conducted in June to August 2018 at the hatchery of Pangkep State Polytechnic of Agricultural. Experimental design used a completely randomized analysis with 4 treatments, A (control), B, C, and D with the additional of dolomite at dose 4, 8, and 12 mg/kg, respectively with 3 replications. Animal test were PL 25 from the shrimp hatchery in Barru District and acclimatized before stocking in aquarium (30l), with density of 20 ind., reared for 40 days, fed pellets (30% protein, 10% biomass, 5 times). The molting intensity (MI) determined by observing and counting the number of moulting every day. Observation of growth rate (GR) using a digital scale (0.0001 g) and survival rate (SR) by calculated the number of live shrimps at the end of the study. Water quality parameter included temperature, salinity, DO and pH. Analysis of Variance (ANOVA) was performed to evaluate the effect of treatment on MI, GR, and SR and followed with the Least Significant Difference (LSD) Test. ANOVA for MI, GR, and SR revealed that dosage have different significant (P<0.05) and LSD test showed that the dose was not optimal (only differentiated between those given dolomite). The highest of MI (avg. 18 inds.), GR (1.82% /day), and SR (78.33%) were obtained in C and the lowest one obtained in A. Data of water quality obtained temperatures 29.87-31.03°C, salinity 25-30 ppt, DO 4.86-5.51 mg/l which were still in the proper range. The highest pH value was obtained in D was 7.22-7.75, while the lowest one obtained in A 6.95-7.16. The highest MI, GR, and SR were obtained in C, temperature, salinity, DO, and pH are still in the proper for the growth and survival of shrimps.
{"title":"Performance of Whiteleg Shrimp (Litopenaeus vannamei) with Additional of Dolomite to the Feed","authors":"Yuliadi, A. Sani","doi":"10.9734/ajfar/2023/v25i1656","DOIUrl":"https://doi.org/10.9734/ajfar/2023/v25i1656","url":null,"abstract":"The objective of this study was to analyze the use dolomite in diet of whiteleg shrimp. It was conducted in June to August 2018 at the hatchery of Pangkep State Polytechnic of Agricultural. Experimental design used a completely randomized analysis with 4 treatments, A (control), B, C, and D with the additional of dolomite at dose 4, 8, and 12 mg/kg, respectively with 3 replications. Animal test were PL 25 from the shrimp hatchery in Barru District and acclimatized before stocking in aquarium (30l), with density of 20 ind., reared for 40 days, fed pellets (30% protein, 10% biomass, 5 times). The molting intensity (MI) determined by observing and counting the number of moulting every day. Observation of growth rate (GR) using a digital scale (0.0001 g) and survival rate (SR) by calculated the number of live shrimps at the end of the study. Water quality parameter included temperature, salinity, DO and pH. Analysis of Variance (ANOVA) was performed to evaluate the effect of treatment on MI, GR, and SR and followed with the Least Significant Difference (LSD) Test. ANOVA for MI, GR, and SR revealed that dosage have different significant (P<0.05) and LSD test showed that the dose was not optimal (only differentiated between those given dolomite). The highest of MI (avg. 18 inds.), GR (1.82% /day), and SR (78.33%) were obtained in C and the lowest one obtained in A. Data of water quality obtained temperatures 29.87-31.03°C, salinity 25-30 ppt, DO 4.86-5.51 mg/l which were still in the proper range. The highest pH value was obtained in D was 7.22-7.75, while the lowest one obtained in A 6.95-7.16. The highest MI, GR, and SR were obtained in C, temperature, salinity, DO, and pH are still in the proper for the growth and survival of shrimps.","PeriodicalId":168203,"journal":{"name":"Asian Journal of Fisheries and Aquatic Research","volume":"370 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134323270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-02DOI: 10.9734/ajfar/2023/v25i2657
H. A. Adedeji, P. M. Tadawus, T. A. Idowu, R. A. Asiru
The effects of ethanol (90% and 95% concentration) preservation on the morphometric characteristics of Clarias gariepinus and Oreochromis niloticus were investigated. The morphometric characters observed were total length, standard length, head length, body depth, eye diameter, and total weight for the period of sixty-three (63) days. Samples were first euthanized before taking the morphometric characteristics after which the samples were individually preserved in separate bottles filled with respective concentrations (90% and 95%) for nine weeks (63 days). Morphometric characteristics of the samples were later measured at the end of the 63 days to determine any possible changes. The results indicated that varying degree of shrinkage was common in all the observed morphometric characters in both species even though they both reacted differently to different concentration of alcohol. The results also revealed that the percentage shrinkage in all measured morphometric characters was higher in C. gariepinus than in O. niloticus and higher in 95% concentration than in 90% concentration.
{"title":"Effects of Different Ethanol Concentrations on the Morphometric Characteristics of Clarias gariepinus and Oreochromis niloticus","authors":"H. A. Adedeji, P. M. Tadawus, T. A. Idowu, R. A. Asiru","doi":"10.9734/ajfar/2023/v25i2657","DOIUrl":"https://doi.org/10.9734/ajfar/2023/v25i2657","url":null,"abstract":"The effects of ethanol (90% and 95% concentration) preservation on the morphometric characteristics of Clarias gariepinus and Oreochromis niloticus were investigated. The morphometric characters observed were total length, standard length, head length, body depth, eye diameter, and total weight for the period of sixty-three (63) days. Samples were first euthanized before taking the morphometric characteristics after which the samples were individually preserved in separate bottles filled with respective concentrations (90% and 95%) for nine weeks (63 days). Morphometric characteristics of the samples were later measured at the end of the 63 days to determine any possible changes. The results indicated that varying degree of shrinkage was common in all the observed morphometric characters in both species even though they both reacted differently to different concentration of alcohol. The results also revealed that the percentage shrinkage in all measured morphometric characters was higher in C. gariepinus than in O. niloticus and higher in 95% concentration than in 90% concentration.","PeriodicalId":168203,"journal":{"name":"Asian Journal of Fisheries and Aquatic Research","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116771371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-01DOI: 10.9734/ajfar/2023/v25i1654
M. I. Illijas, Luqman Saleh, Nur Rahmawaty Arma, Andriani, Rahmi Mulyani
Aims: The white shrimp (Penaeus vannamei) larvae F1 is the dream of shrimp cultivators to be cultivated in ponds. This is because F1 larvae have fast growth, especially if the larvae have disease-free certification (specific pathogen-free, SPF). The purpose of this scientific paper is to evaluate strategies for feeding phytoplankton in larval rearing to increase the survival rate of shrimp larvae F1 of white shrimp. Place and Duration of Study: This research activity was carried out from November to December 2021 at the Shrimp Hatchery Laboratory, Department of Aquaculture Technology, Pankep State Polytechnic Agriculture. Methodology: The nauplii were obtained from the shrimp hatchery industry and then stocked in 2 units of tanks measuring 4m x 4m x 1.5m. Before stocking, the larvae were acclimatized to temperature (28°C) and salinity (30 ppt). The larvae were fed live feed (Skeletonema costatum) from the stage of Nauplii-6 to Mysis-2. In addition, the larvae were also fed artificial feeds and Artemia nauplii. Observation of larval development was carried out at each stage using a microscope (40x), and observations of the population number of each stage were carried out volumetrically. Parasite analysis of each stage was conducted in the Makassar Fish Quarantine. Results: The results showed that during the stage shift from Nauplius-6 to Zoea-1, the larvae succeeded in passing the zoea syndrome (empty intestine). The population decline was only reduced by 2% (from 1,200,000 individuals decreased to 1,175,600 individuals). The final population (PL10) was 1,084,000 (SR 90%). The parasite analyses results showed that the larvae were free from any disease. Administration of phytoplankton (S. costatum ) at the early stage (Nauplius-6) at a dose of 60 x 106 cells/ml has succeeded in reducing the mortality rate (2%) in the critical stage (zoea syndrome) of F1 white shrimp larvae.
{"title":"The Strategy of Phytoplankton Administration in Larval Rearing to Improve the Survival Rate of White Shrimp (Penaeus vannamei) Larvae of F1 and Free-Pathogen","authors":"M. I. Illijas, Luqman Saleh, Nur Rahmawaty Arma, Andriani, Rahmi Mulyani","doi":"10.9734/ajfar/2023/v25i1654","DOIUrl":"https://doi.org/10.9734/ajfar/2023/v25i1654","url":null,"abstract":"Aims: The white shrimp (Penaeus vannamei) larvae F1 is the dream of shrimp cultivators to be cultivated in ponds. This is because F1 larvae have fast growth, especially if the larvae have disease-free certification (specific pathogen-free, SPF). The purpose of this scientific paper is to evaluate strategies for feeding phytoplankton in larval rearing to increase the survival rate of shrimp larvae F1 of white shrimp. \u0000Place and Duration of Study: This research activity was carried out from November to December 2021 at the Shrimp Hatchery Laboratory, Department of Aquaculture Technology, Pankep State Polytechnic Agriculture. \u0000Methodology: The nauplii were obtained from the shrimp hatchery industry and then stocked in 2 units of tanks measuring 4m x 4m x 1.5m. Before stocking, the larvae were acclimatized to temperature (28°C) and salinity (30 ppt). The larvae were fed live feed (Skeletonema costatum) from the stage of Nauplii-6 to Mysis-2. In addition, the larvae were also fed artificial feeds and Artemia nauplii. Observation of larval development was carried out at each stage using a microscope (40x), and observations of the population number of each stage were carried out volumetrically. Parasite analysis of each stage was conducted in the Makassar Fish Quarantine. \u0000Results: The results showed that during the stage shift from Nauplius-6 to Zoea-1, the larvae succeeded in passing the zoea syndrome (empty intestine). The population decline was only reduced by 2% (from 1,200,000 individuals decreased to 1,175,600 individuals). The final population (PL10) was 1,084,000 (SR 90%). The parasite analyses results showed that the larvae were free from any disease. Administration of phytoplankton (S. costatum ) at the early stage (Nauplius-6) at a dose of 60 x 106 cells/ml has succeeded in reducing the mortality rate (2%) in the critical stage (zoea syndrome) of F1 white shrimp larvae.","PeriodicalId":168203,"journal":{"name":"Asian Journal of Fisheries and Aquatic Research","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130131090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-01DOI: 10.9734/ajfar/2023/v25i1653
Reem Al-Sheikh Rasheed, Mohammad Galiya, Z. Almajid
During the implementation of the current research entitled “Study of diet, growth, reproduction, and determination of the concentrations of some trace elements in Alosa fallax (Lacépède, 1803) in the marine waters of the Lattakian coast”, we found the parasite Glugea sp. inside one of the Alosa fallax caught on 7/24/2023 AD from the Ras Al-Baseet area (35.8524° N, 35.8378° E) using Purse nets. Infection with the parasite Glugea sp. In colonies of yellowish-white masses over the digestive system and muscles. The anatomical and histological characteristics were consistent with scientific references, and this is the first record of the parasite Glugea sp. in the Syrian marine waters and the eastern Mediterranean.
{"title":"First Record of the Glugea sp. on the Alosa fallax (Lacepède, 1803) Caught in the Marine Waters of Syria (Eastern Mediterranean)","authors":"Reem Al-Sheikh Rasheed, Mohammad Galiya, Z. Almajid","doi":"10.9734/ajfar/2023/v25i1653","DOIUrl":"https://doi.org/10.9734/ajfar/2023/v25i1653","url":null,"abstract":"During the implementation of the current research entitled “Study of diet, growth, reproduction, and determination of the concentrations of some trace elements in Alosa fallax (Lacépède, 1803) in the marine waters of the Lattakian coast”, we found the parasite Glugea sp. inside one of the Alosa fallax caught on 7/24/2023 AD from the Ras Al-Baseet area (35.8524° N, 35.8378° E) using Purse nets. Infection with the parasite Glugea sp. In colonies of yellowish-white masses over the digestive system and muscles. The anatomical and histological characteristics were consistent with scientific references, and this is the first record of the parasite Glugea sp. in the Syrian marine waters and the eastern Mediterranean.","PeriodicalId":168203,"journal":{"name":"Asian Journal of Fisheries and Aquatic Research","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114724209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-30DOI: 10.9734/ajfar/2023/v25i1652
E. Farrag, Carter Subbaih, Mustafa Al-Shaer
The catch of beach-seine operating in East Coast of the United Arab Emirates during the period from January to December 2022 was investigated. The catch composition was represented by 37 species belong to 22 families. Engraulidae, Leiognathidae, Clupeidae and Carangidae were the most dominants families, represented by 34.21, 22.62, 19.28 and 11.14% in mass respectively. A total of 46210kg of fish were caught by 41 beach seines in the study areas. Monthly CPUE ranged from 430 to 1446kg per operation. The highest CPUE was recorded in March, while the lowest CPUE was in July. In the present study, the average catch of beach seine was 1,127.07kg/haul/boat. In conclusion, the use of beach seines for fishing can help to sustainably manage fisheries by targeting specific populations of fish and reducing bycatch. It can also provide food and income for local communities.
{"title":"Beach Seine Fisheries in the United Arab Emirates on Sea of Oman","authors":"E. Farrag, Carter Subbaih, Mustafa Al-Shaer","doi":"10.9734/ajfar/2023/v25i1652","DOIUrl":"https://doi.org/10.9734/ajfar/2023/v25i1652","url":null,"abstract":"The catch of beach-seine operating in East Coast of the United Arab Emirates during the period from January to December 2022 was investigated. The catch composition was represented by 37 species belong to 22 families. Engraulidae, Leiognathidae, Clupeidae and Carangidae were the most dominants families, represented by 34.21, 22.62, 19.28 and 11.14% in mass respectively. A total of 46210kg of fish were caught by 41 beach seines in the study areas. Monthly CPUE ranged from 430 to 1446kg per operation. The highest CPUE was recorded in March, while the lowest CPUE was in July. In the present study, the average catch of beach seine was 1,127.07kg/haul/boat. In conclusion, the use of beach seines for fishing can help to sustainably manage fisheries by targeting specific populations of fish and reducing bycatch. It can also provide food and income for local communities.","PeriodicalId":168203,"journal":{"name":"Asian Journal of Fisheries and Aquatic Research","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132143635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-28DOI: 10.9734/ajfar/2023/v24i6651
H. Do-Huu
Golden trevally, Gnathanodon speciosus is a new candidate for aquaculture in Viet Nam. This species has rapid growth, high market value, delectable flavour. Finding solutions to enhance production by promoting growth is necessary in golden trevally aquaculture. Vitamin E is one of the feed supplements which has proven the benefit on other aquaculture species but there has not been any study on golden trevally. Therefore, this experiment was designed to test the effect of vitamin E on the golden trevally, Gnathanodon speciosus. Three levels of vitamin E (50, 100, and 200 mg kg-1 diet) were supplemented to the basal diet (control diet). There was 4 diet treatments and 3 replicates for each treatment. The golden trevally (initial weight 7.63 g ± 0.13 (SEM)) were fed experimental diets for eight weeks. The growth performance and protein and lipid content of tissues were evaluated. At the end of the feeding trial (week 8), the presence of vitamin E in a fish's diet resulted in a significant increase in its growth rate (P < 0.05). The survival rate of fish fed diets containing 50 - 200 mg of vitamin E was substantially higher than that of control fish. In addition, protein and lipid levels in the flesh of golden trevally increased significantly as vitamin levels in their diets rose. For optimal growth and survival, it is recommended to supplement the diet of golden trevally with at least 50 mg of vitamin E per kilogramme. In conclusion, supplementing the diet with vitamin E improves growth, survival, and body composition in juveniles of this species. As this experiment is the first study on the effects of vitamin E on golden trevally, it is worthy of investigation.
{"title":"Effects of Dietary Vitamin E Supplementation on Growth Performance, Body Composition of Golden Trevally, Gnathanodon speciosus","authors":"H. Do-Huu","doi":"10.9734/ajfar/2023/v24i6651","DOIUrl":"https://doi.org/10.9734/ajfar/2023/v24i6651","url":null,"abstract":"Golden trevally, Gnathanodon speciosus is a new candidate for aquaculture in Viet Nam. This species has rapid growth, high market value, delectable flavour. Finding solutions to enhance production by promoting growth is necessary in golden trevally aquaculture. Vitamin E is one of the feed supplements which has proven the benefit on other aquaculture species but there has not been any study on golden trevally. Therefore, this experiment was designed to test the effect of vitamin E on the golden trevally, Gnathanodon speciosus. Three levels of vitamin E (50, 100, and 200 mg kg-1 diet) were supplemented to the basal diet (control diet). There was 4 diet treatments and 3 replicates for each treatment. The golden trevally (initial weight 7.63 g ± 0.13 (SEM)) were fed experimental diets for eight weeks. The growth performance and protein and lipid content of tissues were evaluated. At the end of the feeding trial (week 8), the presence of vitamin E in a fish's diet resulted in a significant increase in its growth rate (P < 0.05). The survival rate of fish fed diets containing 50 - 200 mg of vitamin E was substantially higher than that of control fish. In addition, protein and lipid levels in the flesh of golden trevally increased significantly as vitamin levels in their diets rose. For optimal growth and survival, it is recommended to supplement the diet of golden trevally with at least 50 mg of vitamin E per kilogramme. In conclusion, supplementing the diet with vitamin E improves growth, survival, and body composition in juveniles of this species. As this experiment is the first study on the effects of vitamin E on golden trevally, it is worthy of investigation.","PeriodicalId":168203,"journal":{"name":"Asian Journal of Fisheries and Aquatic Research","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123974038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Aims: Show exploitation level and propose rational management measures of the two clupeid-fish species of commercial interest, Stolothrissa tanganicae and Limnothrissa miodon Study Design: Modeling the demography of clupeid fishes of Lake Tanganyika. Place and Duration of Study: Two stations (Kajaga and Nyamugari) situated in the northern part of Lake Tanganyika on the Burundian coast from December 2019 to April 2020. Methodology: Monthly fish sampling was done with local fishermen Demographic parameters were determined according to the Von Bertalanffy growth model using size frequency distributions based on total length. Excel 2013 and FAO-ICLARM. Stock Assessment Tools (FiSAT II version 1.2.2 software). Results: The values of the growth parameters obtained for each of the two species are close at the level of the two stations. For S. tanganicae, we have L∞= 135 mm and 118 m and K=0.94 yr-1 and 0.99 yr-1 respectively at Kajaga and Nyamugari. For L. miodon, we have L∞= 148 mm and 132 m and K=1.04 yr-1 and 0.92 yr-1 respectively at Kajaga and Nyamugari. The Ø' values obtained are high and vary from 4.14 to 4.58 depending on the species and the stations: For S. tanganicae, higher Ø' was recorded at Kajaga (Ø'= 4.23). In L. miodon, it was observed at Nyamugari (Ø’=4.58). M oscillate around 1 (M varies from 1.08 to 1.17 year-1) for the two species at two stations. F is high everywhere and varies from 3.03 to 6.49 yr-1 depending on the species and the stations. Both species are overexploited : 0.73
目的:了解坦噶尼喀湖两种具有商业价值的长尾鱼(Stolothrissa tanganicae)和长尾鱼(Limnothrissa miodon)的开发利用水平，并提出合理的管理措施。研究地点和时间:2019年12月至2020年4月，位于布隆迪海岸坦噶尼喀湖北部的两个站点(Kajaga和Nyamugari)。方法:每月与当地渔民进行鱼类抽样，根据Von Bertalanffy生长模型，使用基于总长度的尺寸频率分布确定人口统计参数。Excel 2013和FAO-ICLARM。库存评估工具(FiSAT II版本1.2.2软件)。结果:两种植物的生长参数在两站水平上较为接近。在Kajaga和Nyamugari, S. tanganicae的L∞分别为135 mm和118 m, K分别为0.94和0.99 year -1。在Kajaga和Nyamugari, L∞分别为148 mm和132 m, K分别为1.04和0.92 year -1。所获得的Ø'值很高，根据物种和站点的不同在4.14到4.58之间变化:对于S. tanganicae，在Kajaga记录了更高的Ø' (Ø'= 4.23)。L. miodon在Nyamugari (Ø’=4.58)发现。两个站点两个物种的M在1附近振荡(M在1.08 ~ 1.17年-1之间变化)。F到处都很高，根据物种和观测站的不同在3.03到6.49年-1之间变化。两个物种均处于过度开发状态:0.73
{"title":"Population Dynamics and Exploitation Level of Stolothrissa tanganicae Regan, 1917 and Limnothrissa miodon (Boulenger, 1906), Two Clupeid Fish Species of Commercial Interest of Burundian Waters Northeast of Lake Tanganyika","authors":"Niyonkuru Charles, Ntakirutimana Remy, Ntakimazi Gaspard","doi":"10.9734/ajfar/2023/v24i6650","DOIUrl":"https://doi.org/10.9734/ajfar/2023/v24i6650","url":null,"abstract":"Aims: Show exploitation level and propose rational management measures of the two clupeid-fish species of commercial interest, Stolothrissa tanganicae and Limnothrissa miodon \u0000Study Design: Modeling the demography of clupeid fishes of Lake Tanganyika. \u0000Place and Duration of Study: Two stations (Kajaga and Nyamugari) situated in the northern part of Lake Tanganyika on the Burundian coast from December 2019 to April 2020. \u0000Methodology: Monthly fish sampling was done with local fishermen Demographic parameters were determined according to the Von Bertalanffy growth model using size frequency distributions based on total length. Excel 2013 and FAO-ICLARM. Stock Assessment Tools (FiSAT II version 1.2.2 software). \u0000Results: The values of the growth parameters obtained for each of the two species are close at the level of the two stations. For S. tanganicae, we have L∞= 135 mm and 118 m and K=0.94 yr-1 and 0.99 yr-1 respectively at Kajaga and Nyamugari. For L. miodon, we have L∞= 148 mm and 132 m and K=1.04 yr-1 and 0.92 yr-1 respectively at Kajaga and Nyamugari. The Ø' values obtained are high and vary from 4.14 to 4.58 depending on the species and the stations: For S. tanganicae, higher Ø' was recorded at Kajaga (Ø'= 4.23). In L. miodon, it was observed at Nyamugari (Ø’=4.58). M oscillate around 1 (M varies from 1.08 to 1.17 year-1) for the two species at two stations. F is high everywhere and varies from 3.03 to 6.49 yr-1 depending on the species and the stations. Both species are overexploited : 0.73<E<0.86, so E is close to 1. Small-sized individuals dominate catches: minimum sizes are between 24 and 30 and 42 and 54 mm respectively in L. miodon and in S. tanganicae. \u0000Both the fish species adapt well to their environments (the values of Ø' are very high). \u0000Conclusion: Both species of fish adapt well to their environments (the values of Ø' are very high). Given their overexploitation, the existing rational management measures must be strengthened and rigorously applied.","PeriodicalId":168203,"journal":{"name":"Asian Journal of Fisheries and Aquatic Research","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121059591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-24DOI: 10.9734/ajfar/2023/v24i6649
A. Abankwa, Rosemary Acquaye
The study assessed the effects of smoking on the nutrient attributes of penaeus notialis shrimps in Ghana. Terminalia ivorensis, Petersianthus macrocarpus and Albizia zygia were used as fuel woods to smoolder the shrimps. Descriptive and experimental research designs were adopted to guide the entire study. A Random sampling technique was used to select 88 second year students of the Catering and Hospitality Department at the Kumasi Technical University. Frequency and percentage were used to analyse the background information of the respondents. One way Analysis of variance (ANOVA) was used to test for significant differences among the types of wood used. The study revealed that seven nutrients (Dry Matter, Moisture, Ash, Protein, Fibre, Fat/Oil and Carbohydrate) were found. There is a significant difference in nutritional and chemical properties of the shrimps based on the types of wood used for smoking. The study, therefore, recommended that, care must be taken not to use any wood for fuel in smoking shrimps.
{"title":"Assessment of Nutritional Composition of Shrimps Using Different Smoking Method","authors":"A. Abankwa, Rosemary Acquaye","doi":"10.9734/ajfar/2023/v24i6649","DOIUrl":"https://doi.org/10.9734/ajfar/2023/v24i6649","url":null,"abstract":"The study assessed the effects of smoking on the nutrient attributes of penaeus notialis shrimps in Ghana. Terminalia ivorensis, Petersianthus macrocarpus and Albizia zygia were used as fuel woods to smoolder the shrimps. Descriptive and experimental research designs were adopted to guide the entire study. A Random sampling technique was used to select 88 second year students of the Catering and Hospitality Department at the Kumasi Technical University. Frequency and percentage were used to analyse the background information of the respondents. One way Analysis of variance (ANOVA) was used to test for significant differences among the types of wood used. The study revealed that seven nutrients (Dry Matter, Moisture, Ash, Protein, Fibre, Fat/Oil and Carbohydrate) were found. There is a significant difference in nutritional and chemical properties of the shrimps based on the types of wood used for smoking. The study, therefore, recommended that, care must be taken not to use any wood for fuel in smoking shrimps.","PeriodicalId":168203,"journal":{"name":"Asian Journal of Fisheries and Aquatic Research","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127714492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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