Parameters of length-weight relationship of freshwater and marine fishes have long been of interest as a longstanding theme fisheries sciences and have been estimated for many fishes around the world. In this study, for the first time, length weight relationship (LWR) was estimated for a native fish, the long nose goby Awaous jayakari (Gobiidae) collected from the inland waters of Oman in 2020 using foldable shrimp and crab fishing traps (mesh size of 3*3mm). The parameter of b for male and female specimens based on standard length (SL) was within the range of 2.666-4.377 and 2.852-3.374 respectively. As proposed for different fishes there was high and significant correlation coefficients with between length and weight of (0.970-0.983). Bailey’s ‘t’ test revealed that b value significantly deviated from 3 for both males and females.
{"title":"Evaluation of length-weight relationship for a native goby, Awaous jayakari (Teleostei: Gobiidae) in the Middle East","authors":"A. Masoumi, S. A. Jufaili, H. Esmaeili","doi":"10.22034/IJAB.V9I4.1315","DOIUrl":"https://doi.org/10.22034/IJAB.V9I4.1315","url":null,"abstract":"Parameters of length-weight relationship of freshwater and marine fishes have long been of interest as a longstanding theme fisheries sciences and have been estimated for many fishes around the world. In this study, for the first time, length weight relationship (LWR) was estimated for a native fish, the long nose goby Awaous jayakari (Gobiidae) collected from the inland waters of Oman in 2020 using foldable shrimp and crab fishing traps (mesh size of 3*3mm). The parameter of b for male and female specimens based on standard length (SL) was within the range of 2.666-4.377 and 2.852-3.374 respectively. As proposed for different fishes there was high and significant correlation coefficients with between length and weight of (0.970-0.983). Bailey’s ‘t’ test revealed that b value significantly deviated from 3 for both males and females.","PeriodicalId":36975,"journal":{"name":"International Journal of Aquatic Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90166000","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}
Marzieh Abbasi, B. Falahatkar, A. Bani, B. Heidari
Blood biochemical parameters are important factors that can show the changes in health offering critical feedback on physiological condition of fish. In the present study, we examined a comparative study on the blood biochemical parameters in mature male and female goldfish, Carassius auratus . Plasma samples of 72 male and female goldfish that have been kept at 24°C for 30 days were analyzed and their biochemical parameters levels were determined. There were significant differences in all measured parameters between genders so that, maximum concentrations of the glucose (73.45±0.68 mg/dl) and calcium (8.32±0.05 mg/dl) were found in female fish, while the highest levels of the total protein (3.14±0.01 g/dl), cholesterol (281.65±3.19 mg/dl) and triglyceride (428.31±1.17 mg/dl) were measured in males. Based on the results, the plasma biochemical parameters changes vary considerably between male and female goldfish.
{"title":"Comparative study of plasma biochemical parameters in mature male and female goldfish, Carassius auratus","authors":"Marzieh Abbasi, B. Falahatkar, A. Bani, B. Heidari","doi":"10.22034/IJAB.V9I4.1279","DOIUrl":"https://doi.org/10.22034/IJAB.V9I4.1279","url":null,"abstract":"Blood biochemical parameters are important factors that can show the changes in health offering critical feedback on physiological condition of fish. In the present study, we examined a comparative study on the blood biochemical parameters in mature male and female goldfish, Carassius auratus . Plasma samples of 72 male and female goldfish that have been kept at 24°C for 30 days were analyzed and their biochemical parameters levels were determined. There were significant differences in all measured parameters between genders so that, maximum concentrations of the glucose (73.45±0.68 mg/dl) and calcium (8.32±0.05 mg/dl) were found in female fish, while the highest levels of the total protein (3.14±0.01 g/dl), cholesterol (281.65±3.19 mg/dl) and triglyceride (428.31±1.17 mg/dl) were measured in males. Based on the results, the plasma biochemical parameters changes vary considerably between male and female goldfish.","PeriodicalId":36975,"journal":{"name":"International Journal of Aquatic Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80555649","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}
Maryam SAEMI-KOMSARI, H. Mousavi-Sabet, M. Sattari, S. Eagderi, S. Vatandoust, I. Doadrio
Geometric morphometric method was used to examine the body shape variations among the six populations of Garra rufa , in Iranian part of Tigris basin. A total of 15 landmark-points was used for 170 specimens to hypothesize population differentiation of G. rufa in the six rivers and reservoir. In discriminant function analysis, 85.9% of original grouped cases correctly classified. Principal component analysis (PCA) and canonical variates analysis (CVA) confirmed the significant difference between the populations. The results revealed that the studied populations are divided into three clades based on differences in body depth, caudal peduncle length, backward moving of anal fin. Caudal peduncle showed shortening trend in five populations. Narrower body shape was dominated among specimens of four regions. Studies on body shape provide supporting data on fisheries, stock management, and conservative programs.
{"title":"Body shape variation of Garra rufa (Teleostei, Cyprinidae) populations in the Tigris basin in Iran using geometric morphometric analysis","authors":"Maryam SAEMI-KOMSARI, H. Mousavi-Sabet, M. Sattari, S. Eagderi, S. Vatandoust, I. Doadrio","doi":"10.22034/IJAB.V9I4.611","DOIUrl":"https://doi.org/10.22034/IJAB.V9I4.611","url":null,"abstract":"Geometric morphometric method was used to examine the body shape variations among the six populations of Garra rufa , in Iranian part of Tigris basin. A total of 15 landmark-points was used for 170 specimens to hypothesize population differentiation of G. rufa in the six rivers and reservoir. In discriminant function analysis, 85.9% of original grouped cases correctly classified. Principal component analysis (PCA) and canonical variates analysis (CVA) confirmed the significant difference between the populations. The results revealed that the studied populations are divided into three clades based on differences in body depth, caudal peduncle length, backward moving of anal fin. Caudal peduncle showed shortening trend in five populations. Narrower body shape was dominated among specimens of four regions. Studies on body shape provide supporting data on fisheries, stock management, and conservative programs.","PeriodicalId":36975,"journal":{"name":"International Journal of Aquatic Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83473490","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}
The main objective of this study was to examine the growth, mortality, and exploitation rate of Chloroscombrus chrysurus from the continental shelf of Ghana, West Africa between July 2018 and June 2019. This study provided results on fishery dynamics parameters to contribute to estimating the stock assessment of these fish species. Monthly length-frequency data were collected from 697 samples and analyzed using fisheries models fitted in TropFish R. The von Bertalanffy growth parameters were utilized to analyze the population dynamics of these species using ELEFAN Simulating Annealing. The estimated asymptotic total length (L ∞ ), coefficient of growth (K), and growth performance index (Φ′) was 24.9 cm, 0.84 year -1, and 2.72, respectively, with a Response surface (Rn) value of 0.79. The total mortality (Z), natural mortality (M), and fishing mortality (F) rates C. chrysurus from the continental shelf of Ghana were 3.27 year -1 , 1.31 year -1 , and 1.96 year -1 , respectively. The exploitation rate (E) estimated was above the optimum level of 0.5 which indicates that the species is overexploited. Based on the Emsy (0.69) value, analyses show that the exploitation rate has exceeded the sustainable limit and hence the need for proper fisheries management measures.
本研究的主要目的是研究2018年7月至2019年6月期间西非加纳大陆架chrysurus的生长、死亡率和开采率。本研究提供了渔业动态参数的结果，有助于对这些鱼类种群进行评估。每月收集697个样本的长度-频率数据，利用TropFish r中拟合的渔业模型进行分析。利用ELEFAN模拟退火算法，利用von Bertalanffy生长参数分析这些物种的种群动态。估计的渐近总长度(L∞)、生长系数(K)和生长性能指数(Φ’)分别为24.9 cm、0.84 year -1和2.72，响应面(Rn)值为0.79。加纳大陆架黄颡鱼总死亡率(Z)、自然死亡率(M)和捕捞死亡率(F)分别为3.27年-1、1.31年-1和1.96年-1。估计的开采率(E)高于最优水平0.5，表明该物种被过度开发。根据Emsy(0.69)值，分析表明，开采率已超过可持续限度，因此需要采取适当的渔业管理措施。
{"title":"Assessing the stock status of Atlantic bumper, Chloroscombrus chrysurus, Linnaeus 1766, from the coastal waters of Ghana","authors":"S. Amponsah, N. A. Commey, B. Asiedu, H. Fazli","doi":"10.22034/IJAB.V9I4.1174","DOIUrl":"https://doi.org/10.22034/IJAB.V9I4.1174","url":null,"abstract":"The main objective of this study was to examine the growth, mortality, and exploitation rate of Chloroscombrus chrysurus from the continental shelf of Ghana, West Africa between July 2018 and June 2019. This study provided results on fishery dynamics parameters to contribute to estimating the stock assessment of these fish species. Monthly length-frequency data were collected from 697 samples and analyzed using fisheries models fitted in TropFish R. The von Bertalanffy growth parameters were utilized to analyze the population dynamics of these species using ELEFAN Simulating Annealing. The estimated asymptotic total length (L ∞ ), coefficient of growth (K), and growth performance index (Φ′) was 24.9 cm, 0.84 year -1, and 2.72, respectively, with a Response surface (Rn) value of 0.79. The total mortality (Z), natural mortality (M), and fishing mortality (F) rates C. chrysurus from the continental shelf of Ghana were 3.27 year -1 , 1.31 year -1 , and 1.96 year -1 , respectively. The exploitation rate (E) estimated was above the optimum level of 0.5 which indicates that the species is overexploited. Based on the Emsy (0.69) value, analyses show that the exploitation rate has exceeded the sustainable limit and hence the need for proper fisheries management measures.","PeriodicalId":36975,"journal":{"name":"International Journal of Aquatic Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74206197","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}
B. M. H. AL-Adily, Noor Mahmmoud Naji, S. O. Al-Mamoori
Seeds of Phaseolus vulgaris L. and Pisum sativum were planted in separated pots, then these pots divided into two groups, each group divided into four subgroups. Four different wastewater were used to irrigate the treatments. The results showed the effects induced by irrigated wastewater on P. vulgaris L. and P. sativum. The degree of water salinity induced increasing SOD, protein content and the area of xylem elements, but reduced chlorophyll-α in P. vulgaris . The CAT, protein and chlorophyll-α were increased in in P. sativum as a result to salinity which also reduces the area of xylem elements.
{"title":"Quality analysis and effect of reused water on some biological characteristics of Phaseolus vulgaris and Pisum sativum","authors":"B. M. H. AL-Adily, Noor Mahmmoud Naji, S. O. Al-Mamoori","doi":"10.22034/IJAB.V9I4.1347","DOIUrl":"https://doi.org/10.22034/IJAB.V9I4.1347","url":null,"abstract":"Seeds of Phaseolus vulgaris L. and Pisum sativum were planted in separated pots, then these pots divided into two groups, each group divided into four subgroups. Four different wastewater were used to irrigate the treatments. The results showed the effects induced by irrigated wastewater on P. vulgaris L. and P. sativum. The degree of water salinity induced increasing SOD, protein content and the area of xylem elements, but reduced chlorophyll-α in P. vulgaris . The CAT, protein and chlorophyll-α were increased in in P. sativum as a result to salinity which also reduces the area of xylem elements.","PeriodicalId":36975,"journal":{"name":"International Journal of Aquatic Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82358162","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}
Quang Hung Duong, Nhat-Truong Phan, Quynh Anh Tran-Nguyen, Minh Văn Võ, M. Trinh-Dang
Characteristics of the Lecane (Rotifera) community in psammon in Central Coast Vietnam were investigated. A total of 50 taxa were identified in samples collected at hygropsammon zones of temporary pools, contributing 4 new species to rotifers’ record of Vietnam. Psammonxenic species accounted for the largest percentage of Lecane community with 82%, followed by psammophiles (12%) and psammonbionts (6%). Influences of some environmental factors on the distribution of psammic lecanids were also observed. This group of organisms showed a slight tendency towards sand with grain sizes larger than 125 µm. Besides, other abiotic factors including pH, total phosphorus (TP) and total dissolved solids (TDS) were also found to significantly related to the distribution of some common Lecane species.
{"title":"Lecane (Rotifera: Lecanidae) community in psammon habitat in Central Coast Vietnam: Diversity and relation to environmental condition","authors":"Quang Hung Duong, Nhat-Truong Phan, Quynh Anh Tran-Nguyen, Minh Văn Võ, M. Trinh-Dang","doi":"10.22034/IJAB.V9I4.1213","DOIUrl":"https://doi.org/10.22034/IJAB.V9I4.1213","url":null,"abstract":"Characteristics of the Lecane (Rotifera) community in psammon in Central Coast Vietnam were investigated. A total of 50 taxa were identified in samples collected at hygropsammon zones of temporary pools, contributing 4 new species to rotifers’ record of Vietnam. Psammonxenic species accounted for the largest percentage of Lecane community with 82%, followed by psammophiles (12%) and psammonbionts (6%). Influences of some environmental factors on the distribution of psammic lecanids were also observed. This group of organisms showed a slight tendency towards sand with grain sizes larger than 125 µm. Besides, other abiotic factors including pH, total phosphorus (TP) and total dissolved solids (TDS) were also found to significantly related to the distribution of some common Lecane species.","PeriodicalId":36975,"journal":{"name":"International Journal of Aquatic Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88931666","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}
Adzel Adrian Guillen Baldevieso, Fiona L. Pedroso, K. G. S. Andrino-Felarca, M. S. M. Golez, M. J. Apines-Amar
This study determined the influence of the lunar cycle, tidal fluctuation, as well as water physicochemical factors on the gonadal maturation of green mussel, Perna viridis , in Malampaya Sound, Taytay, Palawan, Philippines. Monitoring and sampling were conducted for the 6 months, from October 2017 to March 2018. It was observed that the lunar cycle has a direct influence on gonadal maturity. Gonadal changes in both male and female P. viridis were observed histologically and both exhibit the characteristic of lunar-synchronous pattern. It was observed that a high number of green mussels with spawning stages usually occur during the full moon and new moon. Furthermore, gonadal maturity was also affected by the tidal fluctuation. A higher number of P. viridis with spawning stages were recorded during spring tide, whereas the percentage of spent individuals were higher during neap tides. Furthermore, it was observed in the present study that salinity fluctuation could influence spawning of green mussel, wherein the number of spent individuals increased after the sudden drop in water salinity from 30 to 13 ppt after the heavy rainfall, an indication that spawning had occurred. The presence of individuals with spawning stages was also observed throughout of period of sampling which indicates that mussels were continuously breeding in the area. The highest percentage of individuals having spawning stages were recorded in October and November. The information on the factors that affect gonadal maturation and spawning schedule can help mussel growers predict the schedule of spatfall.
{"title":"Influence of lunar cycle, moon driven tides and water physicochemical factors on the gonadal maturation of green mussel, Perna viridis, in the inner Malampaya sound, Taytay, Palawan, Philippines","authors":"Adzel Adrian Guillen Baldevieso, Fiona L. Pedroso, K. G. S. Andrino-Felarca, M. S. M. Golez, M. J. Apines-Amar","doi":"10.22034/IJAB.V9I4.859","DOIUrl":"https://doi.org/10.22034/IJAB.V9I4.859","url":null,"abstract":"This study determined the influence of the lunar cycle, tidal fluctuation, as well as water physicochemical factors on the gonadal maturation of green mussel, Perna viridis , in Malampaya Sound, Taytay, Palawan, Philippines. Monitoring and sampling were conducted for the 6 months, from October 2017 to March 2018. It was observed that the lunar cycle has a direct influence on gonadal maturity. Gonadal changes in both male and female P. viridis were observed histologically and both exhibit the characteristic of lunar-synchronous pattern. It was observed that a high number of green mussels with spawning stages usually occur during the full moon and new moon. Furthermore, gonadal maturity was also affected by the tidal fluctuation. A higher number of P. viridis with spawning stages were recorded during spring tide, whereas the percentage of spent individuals were higher during neap tides. Furthermore, it was observed in the present study that salinity fluctuation could influence spawning of green mussel, wherein the number of spent individuals increased after the sudden drop in water salinity from 30 to 13 ppt after the heavy rainfall, an indication that spawning had occurred. The presence of individuals with spawning stages was also observed throughout of period of sampling which indicates that mussels were continuously breeding in the area. The highest percentage of individuals having spawning stages were recorded in October and November. The information on the factors that affect gonadal maturation and spawning schedule can help mussel growers predict the schedule of spatfall.","PeriodicalId":36975,"journal":{"name":"International Journal of Aquatic Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85236685","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}
Lobocheilos falcifer is a rare and vulnerable freshwater fish species from Java, Indonesia and currently listed as Vulnerable (VU) within the IUCN Red List. In 2019, three specimens of L. falcifer were collected and photographed on Rawa Pening Lake, Semarang Regency, Central Java Province and Solo River, Karanganyar Regency, Central Java Province as two new localities for this species, extending its distribution in about 80 km to southeast. We also provided the morphological data of this species as well.
{"title":"Two new localities for Lobocheilos falcifer (Valenciennes, 1842) (Teleostei: Cyprinidae), a rare and vulnerable freshwater fish species of Java, Indonesia","authors":"V. Hasan, Lucas O. Vieira, F. Ottoni, E. Masithah","doi":"10.22034/IJAB.V9I4.1285","DOIUrl":"https://doi.org/10.22034/IJAB.V9I4.1285","url":null,"abstract":"Lobocheilos falcifer is a rare and vulnerable freshwater fish species from Java, Indonesia and currently listed as Vulnerable (VU) within the IUCN Red List. In 2019, three specimens of L. falcifer were collected and photographed on Rawa Pening Lake, Semarang Regency, Central Java Province and Solo River, Karanganyar Regency, Central Java Province as two new localities for this species, extending its distribution in about 80 km to southeast. We also provided the morphological data of this species as well.","PeriodicalId":36975,"journal":{"name":"International Journal of Aquatic Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85699946","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}
Growth is a concept that includes social, economic and physical sub-processes and it also shows itself in the field of fisheries. It is extremely important to obtain the appropriate mathematical model for growth for aquatic species. The growth modelling for the aquatic species contains the phenomena of bio-diversity, formation and population dynamics of aquatic species or stock estimation for the creature. And this study aims to design and implement a new mathematical model for growth process for aquatic species as Generalized Modified Levakovic Growth (GLM) model.
{"title":"Generalized modified Levakovic growth function for aquatic species","authors":"Deniz Ünal","doi":"10.22034/IJAB.V9I3.1271","DOIUrl":"https://doi.org/10.22034/IJAB.V9I3.1271","url":null,"abstract":"Growth is a concept that includes social, economic and physical sub-processes and it also shows itself in the field of fisheries. It is extremely important to obtain the appropriate mathematical model for growth for aquatic species. The growth modelling for the aquatic species contains the phenomena of bio-diversity, formation and population dynamics of aquatic species or stock estimation for the creature. And this study aims to design and implement a new mathematical model for growth process for aquatic species as Generalized Modified Levakovic Growth (GLM) model.","PeriodicalId":36975,"journal":{"name":"International Journal of Aquatic Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89890782","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}
Wafaa Hassan Muslem, Hassan Muslem Abdulhussein, M. Edbeib, R. A. Wahab, F. Huyop
The widespread use of herbicides containing 2,2-dichloropropionic acid (2,2-DCP) as a recalcitrant halogen compound poses significant environmental risks and can be harmful for humen. Consequently, it is important that the bio-based detoxification method is developed in an environmental manner. This study was aimed to isolate and identify a possible degradation 2,2-DCP bacterial strain as the sole source of carbon. A bacterial dehalogenase producing 2,2-DCP was isolated from abandoned land named as WM. The WM strain was shown to have 98% sequence identity and characteristics similar to Enterobacter sp. based on 16s rRNA analysis, biochemical and morphological tests. Phylogenic analysis showed that the WM strain was Enterobacter sp. In media with 20 mM 3CP, the bacteria were well growing at 37°C, although an optimal chloride ion release was 0.48 μmol Cl/mL. The first report of an Enterobacter sp. strain which can use 2, 2-DCP as its sole carbon source in a competent manner.
含有2,2-二氯丙酸(2,2- dcp)的除草剂是一种顽固性卤素化合物，其广泛使用对环境造成了重大风险，并可能对人体有害。因此，重要的是，以环境的方式发展基于生物的解毒方法。本研究旨在分离和鉴定一种可能降解的2,2- dcp菌株作为碳的唯一来源。从废弃土地WM中分离到一种产2,2-二氯苯酚的细菌脱卤酶。经16s rRNA分析、生化和形态学检测，WM菌株与肠杆菌具有98%的序列同源性和相似的特征。系统发育分析表明，WM菌株为肠杆菌sp.在20 mM 3CP的培养基中，37℃条件下生长良好，氯离子释放量为0.48 μmol Cl/mL。首次报道一株肠杆菌菌株能够以胜任的方式使用2,2 -二氯丁二烯作为其唯一的碳源。
{"title":"Isolation and identification of bacteria degrading 2,2-dichloropropionic acid in water sample","authors":"Wafaa Hassan Muslem, Hassan Muslem Abdulhussein, M. Edbeib, R. A. Wahab, F. Huyop","doi":"10.22034/IJAB.V9I3.1269","DOIUrl":"https://doi.org/10.22034/IJAB.V9I3.1269","url":null,"abstract":"The widespread use of herbicides containing 2,2-dichloropropionic acid (2,2-DCP) as a recalcitrant halogen compound poses significant environmental risks and can be harmful for humen. Consequently, it is important that the bio-based detoxification method is developed in an environmental manner. This study was aimed to isolate and identify a possible degradation 2,2-DCP bacterial strain as the sole source of carbon. A bacterial dehalogenase producing 2,2-DCP was isolated from abandoned land named as WM. The WM strain was shown to have 98% sequence identity and characteristics similar to Enterobacter sp. based on 16s rRNA analysis, biochemical and morphological tests. Phylogenic analysis showed that the WM strain was Enterobacter sp. In media with 20 mM 3CP, the bacteria were well growing at 37°C, although an optimal chloride ion release was 0.48 μmol Cl/mL. The first report of an Enterobacter sp. strain which can use 2, 2-DCP as its sole carbon source in a competent manner.","PeriodicalId":36975,"journal":{"name":"International Journal of Aquatic Biology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80806685","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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