Pub Date : 2024-06-15DOI: 10.12714/egejfas.41.2.04
Rimu Das, D. Pandit, Md. Wahidul Alam, Md. Shah Aziz, Joyanta Bir, Md Mehedi Hassan, Mohammad Rokan Uddin, Md. Habibur Rahman, Ismot Zereen
Microplastic (MP) pollution in aquatic systems poses a great threat, as these tiny particles contaminate water, harm marine life, and may eventually enter the food chain, endangering ecosystems and human health. The purpose of this study was to assess the presence of MPs in surface-level water samples taken from Chattogram Coastal Area of the Bay of Bengal in Bangladesh. A total of 20 water samples were collected from four sea beaches, spanning the period from September to December 2023. A total of 452 MPs were enumerated from the collected water samples, with 29% observed in Kattoli Beach, 26% in Patenga Beach, 24% in Anowara Beach, and 21% in Banshkhali Beach. MPs ranging from 1-5mm in size were identified as the most prevalent in the study areas. Anowara Beach exhibited a dominant composition of fibers (53%), Banshkhali Beach was characterized by particles (55%), and Patenga Beach and Kattoli Beach displayed a high abundance of fragments (65% and 56%, respectively). The abundance of MPs at Kattoli Beach was significantly high (p<0.05) compared to other beaches. The pollution load index ranged from 1.25-1.49 with the highest index values at Kattoli Beach. The results from this study could be applied as a guide to efficient environmental management for the long-term health of the beaches by reducing the degree of MP load from the coastal and marine ecosystems of Bangladesh.
{"title":"Microplastics in surface water of different beaches in Chattogram coastal area of Bay of Bengal in Bangladesh","authors":"Rimu Das, D. Pandit, Md. Wahidul Alam, Md. Shah Aziz, Joyanta Bir, Md Mehedi Hassan, Mohammad Rokan Uddin, Md. Habibur Rahman, Ismot Zereen","doi":"10.12714/egejfas.41.2.04","DOIUrl":"https://doi.org/10.12714/egejfas.41.2.04","url":null,"abstract":"Microplastic (MP) pollution in aquatic systems poses a great threat, as these tiny particles contaminate water, harm marine life, and may eventually enter the food chain, endangering ecosystems and human health. The purpose of this study was to assess the presence of MPs in surface-level water samples taken from Chattogram Coastal Area of the Bay of Bengal in Bangladesh. A total of 20 water samples were collected from four sea beaches, spanning the period from September to December 2023. A total of 452 MPs were enumerated from the collected water samples, with 29% observed in Kattoli Beach, 26% in Patenga Beach, 24% in Anowara Beach, and 21% in Banshkhali Beach. MPs ranging from 1-5mm in size were identified as the most prevalent in the study areas. Anowara Beach exhibited a dominant composition of fibers (53%), Banshkhali Beach was characterized by particles (55%), and Patenga Beach and Kattoli Beach displayed a high abundance of fragments (65% and 56%, respectively). The abundance of MPs at Kattoli Beach was significantly high (p<0.05) compared to other beaches. The pollution load index ranged from 1.25-1.49 with the highest index values at Kattoli Beach. The results from this study could be applied as a guide to efficient environmental management for the long-term health of the beaches by reducing the degree of MP load from the coastal and marine ecosystems of Bangladesh.","PeriodicalId":504514,"journal":{"name":"Ege Journal of Fisheries and Aquatic Sciences","volume":"5 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141337546","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 : 2024-06-15DOI: 10.12714/egejfas.41.2.06
A. Çelekli, Mostafa Mohammadi
This first comprehensive checklist of algae from freshwater and soil in Afghanistan is a significant milestone in understanding the country's biodiversity. It is the result of a collaborative effort by researchers from various institutions. It comprises 398 species belonging to 132 genera and five phyla of algae, with samples collected from 19 regions of Afghanistan. The Nitzschia and Navicula genera have the most significant number of species. The checklist also highlights the sensitivity and threatened status of certain species, such as Achnanthidium gracillimum (F. Meister) Lange-Bertalot, Brachysira serians (Brébisson) Round & D.G. Mann, Diploneis ovalis (Hilse) Cleve, Eunotia praerupta Ehrenberg, Eucocconeis flexella (Kützing) F. Meister. The currently accepted name of species, biological condition gradient of species, the status of species in the Red List of Germany, and trophic weight of some diatom species according to two diatom trophic indices were defined in the checklist. This study is a new start for this field of study and intends to provide the groundwork for further research, which will aid in the work of others interested in this topic.
{"title":"A checklist of algae from Afghanistan","authors":"A. Çelekli, Mostafa Mohammadi","doi":"10.12714/egejfas.41.2.06","DOIUrl":"https://doi.org/10.12714/egejfas.41.2.06","url":null,"abstract":"This first comprehensive checklist of algae from freshwater and soil in Afghanistan is a significant milestone in understanding the country's biodiversity. It is the result of a collaborative effort by researchers from various institutions. It comprises 398 species belonging to 132 genera and five phyla of algae, with samples collected from 19 regions of Afghanistan. The Nitzschia and Navicula genera have the most significant number of species. The checklist also highlights the sensitivity and threatened status of certain species, such as Achnanthidium gracillimum (F. Meister) Lange-Bertalot, Brachysira serians (Brébisson) Round & D.G. Mann, Diploneis ovalis (Hilse) Cleve, Eunotia praerupta Ehrenberg, Eucocconeis flexella (Kützing) F. Meister. The currently accepted name of species, biological condition gradient of species, the status of species in the Red List of Germany, and trophic weight of some diatom species according to two diatom trophic indices were defined in the checklist. This study is a new start for this field of study and intends to provide the groundwork for further research, which will aid in the work of others interested in this topic.","PeriodicalId":504514,"journal":{"name":"Ege Journal of Fisheries and Aquatic Sciences","volume":"91 23","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141337711","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 : 2024-06-15DOI: 10.12714/egejfas.41.2.02
Hasan Cevher, Ş. Bilgin, Güntekin Doğan
Our study aimed to establish the monthly changes of bogue fatty acids and amino acids (Boops boops Linnaeus, 1758) economically important species during the fishing season. According to the results of the fatty acid analysis of bogue; the highest values were detected for C20:4 ω-6 (arachidonic acid) in December (6.50%), EPA (eicosapentaenoic acid) C20:5 ω-3 in September (5.45%), DHA (docosahexaenoic acid) C22:6 ω-3 in March (16.36%), ΣMUFA (total monounsaturated fatty acid) in April (36.57%), ΣPUFA (total polyunsaturated fatty acid) in November (31.81%) and EPA+DHA in March (19.61%). The highest EPA, DHA and total ω-3 values were observed in March. Amino acid values usually showed important monthly variation (P<0.05). EAA (Essential amino acids) such as lysine (4038.5 mg/100g), valine (1126.5 mg/100g) and leucine (1737.5 mg/100g) contents of bogue were detected in February as the highest values. Glutamic acid and aspartic acid from the NEAA (Non-essential amino acid) values were found highest amount in April. Fatty acids and amino acid values, obtained from the bogue samples changed monthly and were generally significant (P<0.05).
{"title":"Determination of amino acid and fatty acid profiles of bogue (Boops boops) fished in the Gulf of Antalya","authors":"Hasan Cevher, Ş. Bilgin, Güntekin Doğan","doi":"10.12714/egejfas.41.2.02","DOIUrl":"https://doi.org/10.12714/egejfas.41.2.02","url":null,"abstract":"Our study aimed to establish the monthly changes of bogue fatty acids and amino acids (Boops boops Linnaeus, 1758) economically important species during the fishing season. According to the results of the fatty acid analysis of bogue; the highest values were detected for C20:4 ω-6 (arachidonic acid) in December (6.50%), EPA (eicosapentaenoic acid) C20:5 ω-3 in September (5.45%), DHA (docosahexaenoic acid) C22:6 ω-3 in March (16.36%), ΣMUFA (total monounsaturated fatty acid) in April (36.57%), ΣPUFA (total polyunsaturated fatty acid) in November (31.81%) and EPA+DHA in March (19.61%). The highest EPA, DHA and total ω-3 values were observed in March. Amino acid values usually showed important monthly variation (P<0.05). EAA (Essential amino acids) such as lysine (4038.5 mg/100g), valine (1126.5 mg/100g) and leucine (1737.5 mg/100g) contents of bogue were detected in February as the highest values. Glutamic acid and aspartic acid from the NEAA (Non-essential amino acid) values were found highest amount in April. Fatty acids and amino acid values, obtained from the bogue samples changed monthly and were generally significant (P<0.05).","PeriodicalId":504514,"journal":{"name":"Ege Journal of Fisheries and Aquatic Sciences","volume":"10 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141336003","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 : 2024-06-15DOI: 10.12714/egejfas.41.2.01
Pınar Demir Soker, A. Kop, A. Korkut
In this study, the effects of different starch levels (5%, 8% and 11%) on the physical properties of extruded fish feeds with high oil content (22%) were investigated. For this purpose, 3 types of extruded trout feed with different starch levels (S5, S8 and S11) were produced. Physical (moisture, feed diameter, bulk density and pellet durability) and chemical (lipid, starch, water absorption index, water solubility index and water stability) analyses of these feeds were performed in 3 repetitions on the samples taken from the extruder outlet, lubrication outlet and sieve outlet. An increase in the amount of starch in the feed caused an increase in feed diameter and durability of the pellets, while a decrease in bulk density was observed. According to the results of the chemical analysis, it was seen that the increase in the starch ratio had no effect on the crude oil and water solubility index values, the best water absorption index value was in the S8 feed, and the water stability values decreased from S5 to S11.
{"title":"The effects of different starch levels on the physical quality of high-oil extruded fish feed","authors":"Pınar Demir Soker, A. Kop, A. Korkut","doi":"10.12714/egejfas.41.2.01","DOIUrl":"https://doi.org/10.12714/egejfas.41.2.01","url":null,"abstract":"In this study, the effects of different starch levels (5%, 8% and 11%) on the physical properties of extruded fish feeds with high oil content (22%) were investigated. For this purpose, 3 types of extruded trout feed with different starch levels (S5, S8 and S11) were produced. Physical (moisture, feed diameter, bulk density and pellet durability) and chemical (lipid, starch, water absorption index, water solubility index and water stability) analyses of these feeds were performed in 3 repetitions on the samples taken from the extruder outlet, lubrication outlet and sieve outlet. An increase in the amount of starch in the feed caused an increase in feed diameter and durability of the pellets, while a decrease in bulk density was observed. According to the results of the chemical analysis, it was seen that the increase in the starch ratio had no effect on the crude oil and water solubility index values, the best water absorption index value was in the S8 feed, and the water stability values decreased from S5 to S11.","PeriodicalId":504514,"journal":{"name":"Ege Journal of Fisheries and Aquatic Sciences","volume":"6 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141337225","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 : 2024-06-15DOI: 10.12714/egejfas.41.2.03
Eyüp Polat, B. E. Taştan
Microalgae are among the important microorganisms for a sustainable world as a source of renewable energy. In this study, three new microalgae were isolated from different regions of Türkiye and identified by molecular techniques. First isolate was Chlorella sorokiniana Shihira and Krauss, 1965 which was isolated from Dim River, second was Pseudochloris wilhelmii Somogyi et al., 2013 from Tokat and the third was Tetradesmus obliquus (Turpin) Wynne and Hallan, 2016 from Tunca River. The maximum biomass of C. sorokiniana was 1.02 g/L, 1.86 g/L for P. wilhelmii and 0.80 g/L for T. obliquus. The chlorophyll (a+b) concentrations were 0.146, 0.278 and 0.181 µg/mL for C. sorokiniana, P. wilhelmii and T. obliquus, respectively. The biotechnological utilization capacities of new isolates were revealed with the support of literature.
微藻是可持续发展世界的重要微生物之一，也是一种可再生能源。本研究从土耳其不同地区分离了三种新的微藻，并通过分子技术进行了鉴定。第一个分离物是小球藻（Chlorella sorokiniana Shihira and Krauss，1965 年），分离自迪姆河；第二个分离物是假绿藻（Pseudochloris wilhelmii Somogyi et al.，2013 年），分离自托卡特河；第三个分离物是小球藻（Tetradesmus obliquus (Turpin) Wynne and Hallan，2016 年），分离自屯卡河。C. sorokiniana 的最大生物量为 1.02 克/升，P. wilhelmii 为 1.86 克/升，T. obliquus 为 0.80 克/升。C. sorokiniana、P. wilhelmii 和 T. obliquus 的叶绿素（a+b）浓度分别为 0.146、0.278 和 0.181 µg/mL。在文献支持下，新分离物的生物技术利用能力得到了揭示。
{"title":"Investigation of microalgae isolated from different water resources of Türkiye for their biotechnological utilization","authors":"Eyüp Polat, B. E. Taştan","doi":"10.12714/egejfas.41.2.03","DOIUrl":"https://doi.org/10.12714/egejfas.41.2.03","url":null,"abstract":"Microalgae are among the important microorganisms for a sustainable world as a source of renewable energy. In this study, three new microalgae were isolated from different regions of Türkiye and identified by molecular techniques. First isolate was Chlorella sorokiniana Shihira and Krauss, 1965 which was isolated from Dim River, second was Pseudochloris wilhelmii Somogyi et al., 2013 from Tokat and the third was Tetradesmus obliquus (Turpin) Wynne and Hallan, 2016 from Tunca River. The maximum biomass of C. sorokiniana was 1.02 g/L, 1.86 g/L for P. wilhelmii and 0.80 g/L for T. obliquus. The chlorophyll (a+b) concentrations were 0.146, 0.278 and 0.181 µg/mL for C. sorokiniana, P. wilhelmii and T. obliquus, respectively. The biotechnological utilization capacities of new isolates were revealed with the support of literature.","PeriodicalId":504514,"journal":{"name":"Ege Journal of Fisheries and Aquatic Sciences","volume":"5 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141337553","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 : 2024-06-15DOI: 10.12714/egejfas.41.2.09
Özgün Deniz Yürekli, Ahmet Burak Damar, G. Saç, Müfit Özuluğ
The present study documented the first record of the common bream, Abramis brama (Linnaeus, 1758), in the Büyükçekmece Reservoir (İstanbul, Türkiye). The fish were found to have been translocated into the reservoir by anglers from the native population of Lake Durusu (İstanbul). With this discovery, the number of fish species living in the reservoir has increased to 25.
{"title":"The translocation of a native fish for recreational purposes: First record of Abramis brama (Linnaeus, 1758) in Büyükçekmece Reservoir (İstanbul, Türkiye)","authors":"Özgün Deniz Yürekli, Ahmet Burak Damar, G. Saç, Müfit Özuluğ","doi":"10.12714/egejfas.41.2.09","DOIUrl":"https://doi.org/10.12714/egejfas.41.2.09","url":null,"abstract":"The present study documented the first record of the common bream, Abramis brama (Linnaeus, 1758), in the Büyükçekmece Reservoir (İstanbul, Türkiye). The fish were found to have been translocated into the reservoir by anglers from the native population of Lake Durusu (İstanbul). With this discovery, the number of fish species living in the reservoir has increased to 25.","PeriodicalId":504514,"journal":{"name":"Ege Journal of Fisheries and Aquatic Sciences","volume":"22 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141336181","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 : 2024-06-15DOI: 10.12714/egejfas.41.2.07
Tuğba Demiriz Yücer
Algae stand out as suitable sources for use in the cosmetic, food and pharmaceutical industries due to their high content of components such as protein, polysaccharide, lipid, vitamin, mineral, amino acid, fatty acid, and carotenoid and due to the bioactive components that they produce. In this study, the bioactive properties of Spirogyra daedaleoides Czurda, located in the Charopyhta phylum of the algae, were examined. This species was isolated from the benthic habitats of the Yeşilırmak River and cultured. Antioxidant properties of Spirogyra daedaleoides was determined with the methods of free radical removal activity (DPPH, 2,2-diphenyl-1-picrylhydrazyl), iron (III) ion reduction power activity (FRAP, fluorescence recovery after photobleaching) and cation radical removal activity (ABTS, 2,2´-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid)). The fatty acids of Spirogyra daedaleoides was determined by gas chromatography analysis, and vitamins were determined by high-performance liquid chromatography (HPLC) analysis. According to the results of antioxidant analysis, the free radical removal activity of Spirogyra daedaleoides, iron ion reduction power activity and cation radical removal activity were found to be high. When the fatty acid percentages of Spirogyra daedaleoides were considered, the ratios of C20:0 Arachidic acid, C16:0 Palmitic acid, C18:3n3 Alpha linoleic acid, C10:0 Caprinic acid and C18:2n6c Linoleic acid were found to be high. Spirogyra daedaleoides was found to be high in Vitamin A and Vitamin E. Spirogyra daedaleoides could be used as natural resources in the cosmetics, food and pharmaceutical industries according to the results.
{"title":"Investigation of Spirogyra daedaleoides Czurda in terms of bioactive components","authors":"Tuğba Demiriz Yücer","doi":"10.12714/egejfas.41.2.07","DOIUrl":"https://doi.org/10.12714/egejfas.41.2.07","url":null,"abstract":"Algae stand out as suitable sources for use in the cosmetic, food and pharmaceutical industries due to their high content of components such as protein, polysaccharide, lipid, vitamin, mineral, amino acid, fatty acid, and carotenoid and due to the bioactive components that they produce. In this study, the bioactive properties of Spirogyra daedaleoides Czurda, located in the Charopyhta phylum of the algae, were examined. This species was isolated from the benthic habitats of the Yeşilırmak River and cultured. Antioxidant properties of Spirogyra daedaleoides was determined with the methods of free radical removal activity (DPPH, 2,2-diphenyl-1-picrylhydrazyl), iron (III) ion reduction power activity (FRAP, fluorescence recovery after photobleaching) and cation radical removal activity (ABTS, 2,2´-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid)). The fatty acids of Spirogyra daedaleoides was determined by gas chromatography analysis, and vitamins were determined by high-performance liquid chromatography (HPLC) analysis. According to the results of antioxidant analysis, the free radical removal activity of Spirogyra daedaleoides, iron ion reduction power activity and cation radical removal activity were found to be high. When the fatty acid percentages of Spirogyra daedaleoides were considered, the ratios of C20:0 Arachidic acid, C16:0 Palmitic acid, C18:3n3 Alpha linoleic acid, C10:0 Caprinic acid and C18:2n6c Linoleic acid were found to be high. Spirogyra daedaleoides was found to be high in Vitamin A and Vitamin E. Spirogyra daedaleoides could be used as natural resources in the cosmetics, food and pharmaceutical industries according to the results.","PeriodicalId":504514,"journal":{"name":"Ege Journal of Fisheries and Aquatic Sciences","volume":"3 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141336856","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}
This study was conducted in a dry fish market (Saidpur City dry fish market) in northern Bangladesh from January 2023 to June 2023 to evaluate the marketing status, price variation of available dry fish species, and livelihood status of dry fish traders. A mixed-methods approach was used in this research, utilizing both qualitative interviews and quantitative surveys. Findings revealed that there were 17 different types of dry fish along with 5 types of semi-fermented and salted fish products in the market. The average price of dry fish in the market ranged from 3.67 to 4.59 USD/kg. Surma was the most expensive fish available in the Saidpur city dry fish market (4.59-9.17 USD/kg) while Baspata was the cheapest. The livelihood status of dry fish traders was found to be closely linked to market conditions. Their income levels varied significantly depending on the location and size of the market. It was found that 48% of the traders earned 1.83 to 4.59 USD/day, ¬ while 44% of retailers earned 4.59 to 9.17 USD per day. Only 8% of the traders had a daily income above 9.17 USD. In the present study, it was observed that 62% of retailers did not take any loans, while others borrowed from banks and non-governmental organizations (NGOs). About 58.33% of retailers did not have any alternative source of income and more than 50% of dry fish traders could not pass the primary level of education. This study identified both opportunities and challenges for the dry fish market. The major constraints faced by dry fish traders were a lack of credit facilities followed by high transportation costs and inadequate storage facilities.
{"title":"Fish availability, market conditions, and livelihood status of traders in a dry fish market in northern Bangladesh","authors":"Md. Foysul Hossain, Md. Mosiur Rahman, Nguyễn Phạm Đan Trường, Koushik Chakroborty, B. Majumdar","doi":"10.12714/egejfas.41.2.05","DOIUrl":"https://doi.org/10.12714/egejfas.41.2.05","url":null,"abstract":"This study was conducted in a dry fish market (Saidpur City dry fish market) in northern Bangladesh from January 2023 to June 2023 to evaluate the marketing status, price variation of available dry fish species, and livelihood status of dry fish traders. A mixed-methods approach was used in this research, utilizing both qualitative interviews and quantitative surveys. Findings revealed that there were 17 different types of dry fish along with 5 types of semi-fermented and salted fish products in the market. The average price of dry fish in the market ranged from 3.67 to 4.59 USD/kg. Surma was the most expensive fish available in the Saidpur city dry fish market (4.59-9.17 USD/kg) while Baspata was the cheapest. The livelihood status of dry fish traders was found to be closely linked to market conditions. Their income levels varied significantly depending on the location and size of the market. It was found that 48% of the traders earned 1.83 to 4.59 USD/day, ¬ while 44% of retailers earned 4.59 to 9.17 USD per day. Only 8% of the traders had a daily income above 9.17 USD. In the present study, it was observed that 62% of retailers did not take any loans, while others borrowed from banks and non-governmental organizations (NGOs). About 58.33% of retailers did not have any alternative source of income and more than 50% of dry fish traders could not pass the primary level of education. This study identified both opportunities and challenges for the dry fish market. The major constraints faced by dry fish traders were a lack of credit facilities followed by high transportation costs and inadequate storage facilities.","PeriodicalId":504514,"journal":{"name":"Ege Journal of Fisheries and Aquatic Sciences","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141336417","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 : 2024-06-15DOI: 10.12714/egejfas.41.2.08
Erhan Irmak
In this study, the local names of Seriola dumerili and Lichia amia were evaluated by the use of Turkish names by fishermen in 10 provinces and 11 stations on the Aegean and Mediterranean coasts, and amateur fishermen, who are stakeholders in the subject, were evaluated through social media. In addition, the subject was examined in chronological order in printed sources. According to the results of the field studies, it was determined that 89% of all fishermen named S. dumerili as akya, mainly in our coastal provinces. It has been observed that 5% is used as kuzu, 3% as avcı and 3% as imtiyaz. It has been determined that L. amia is called 73% çıplak. It has been observed that 15% is used as akya fulya, 9% as çatal kuyruk and 3% as liça. The names amateur fishermen use for S. dumerili in our coastal provinces are 54% kuzu, 37% akya and 9% sarı kuyruk. For L. amia, the names used by amateur fishermen were 45% liça, 28% çatal kuyruk, 15% liça, 11% çıplak and 1% akya fulya, respectively. In written sources such as articles, books and technical reports, it has been seen that they use akya for L. amia and sarı kuyruk for S. dumerili. From past to present, it would be correct to use L. amia as çıplak and S. dumerili as akya, which fishermen have used to avoid incorrect usage and have unity of name.
在本研究中，通过爱琴海和地中海沿岸 10 个省和 11 个站点的渔民使用土耳其语名称的情况，对 Seriola dumerili 和 Lichia amia 的当地名称进行了评估，并通过社交媒体对作为该主题利益相关者的业余渔民进行了评估。此外，还按时间顺序对印刷资料中的主题进行了研究。根据实地研究的结果，确定 89% 的渔民将 S. dumerili 命名为 akya，主要是在我国沿海省份。据观察，5%的渔民将 S. dumerili 命名为 kuzu，3%的渔民将其命名为 avcı，3%的渔民将其命名为 imtiyaz。据测定，L. amia 73% 被称为 çıplak 。据观察，15%被称为 akya fulya，9%被称为 çatal kuyruk，3%被称为 liça。在我国沿海省份，业余渔民对 S. dumerili 的称呼是 54% kuzu、37% akya 和 9% sarı kuyruk。对于 L. amia，业余渔民使用的名称分别是 45% liça、28% çatal kuyruk、15% liça、11% çıplak 和 1% akya fulya。在文章、书籍和技术报告等书面资料中，可以看到他们用 akya 表示 L. amia，用 sarı kuyruk 表示 S. dumerili。从过去到现在，将 L. amia 称为 çıplak，将 S. dumerili 称为 akya 是正确的，渔民们使用这一名称是为了避免不正确的用法，并使名称具有统一性。
{"title":"Evaluation of general and local usage of Turkish names of Seriola dumerili (Risso, 1810) and Lichia amia (Linnaeus, 1758) species","authors":"Erhan Irmak","doi":"10.12714/egejfas.41.2.08","DOIUrl":"https://doi.org/10.12714/egejfas.41.2.08","url":null,"abstract":"In this study, the local names of Seriola dumerili and Lichia amia were evaluated by the use of Turkish names by fishermen in 10 provinces and 11 stations on the Aegean and Mediterranean coasts, and amateur fishermen, who are stakeholders in the subject, were evaluated through social media. In addition, the subject was examined in chronological order in printed sources. According to the results of the field studies, it was determined that 89% of all fishermen named S. dumerili as akya, mainly in our coastal provinces. It has been observed that 5% is used as kuzu, 3% as avcı and 3% as imtiyaz. It has been determined that L. amia is called 73% çıplak. It has been observed that 15% is used as akya fulya, 9% as çatal kuyruk and 3% as liça. The names amateur fishermen use for S. dumerili in our coastal provinces are 54% kuzu, 37% akya and 9% sarı kuyruk. For L. amia, the names used by amateur fishermen were 45% liça, 28% çatal kuyruk, 15% liça, 11% çıplak and 1% akya fulya, respectively. In written sources such as articles, books and technical reports, it has been seen that they use akya for L. amia and sarı kuyruk for S. dumerili. From past to present, it would be correct to use L. amia as çıplak and S. dumerili as akya, which fishermen have used to avoid incorrect usage and have unity of name.","PeriodicalId":504514,"journal":{"name":"Ege Journal of Fisheries and Aquatic Sciences","volume":"2 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141337168","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 : 2024-06-15DOI: 10.12714/egejfas.41.2.10
Ahmed Omar Gadallah, Doğukan Kaya, Ahmet Gürler, E. Genç
In industrial aquaculture, producing at high stock densities is inevitable to maximize efficiency and harvest per unit volume. Antibiotics, disinfectants, and other chemicals have become necessary to prevent and control disease outbreaks in intensive fish farming practices. However, the negative impacts of the use of synthetic chemical drugs on environmental health have sparked discussions, making research into alternative treatments inevitable. Medicinal plants offer promising solutions for disease control due to their natural, biodegradable, and antimicrobial properties. The therapeutic properties of plants have been known and safely used in traditional medicine for a long time. The idea that medicinal plants can be utilized in aquaculture as a safer, sustainable, and environmentally friendly practice has begun to be embraced. Although numerous treatment protocols have been developed against metazoan parasites in aquaculture, managing protozoan parasites still poses a significant challenge. A detailed literature review has identified that more than 30 plant species have the potential to control many protozoan pathogens in fish, including Ichthyophthirius multifiliis and Cryptocaryon irritans. Studies highlight the effectiveness of plant-derived compounds in combating parasites and promoting growth, supporting immunity, serving as antibacterial agents, and even as anaesthetics. Since research on medicinal plants predominantly targets commercially valuable fish farming, there is a recognized need for expanded studies on their application in shellfish farming. Collaboration among researchers, institutions, and farmers is crucial in increasing awareness of local medicinal plants and promoting their use. The use of plants with medicinal properties in aquaculture represents a promising path for disease control and sustainable production. Adopting these natural alternatives could align with responsible agricultural practices and meet the urgent need to mitigate the environmental impacts of traditional treatments in the aquaculture industry.
{"title":"Effective herbal therapeutics against the protozoan parasites in aquaculture","authors":"Ahmed Omar Gadallah, Doğukan Kaya, Ahmet Gürler, E. Genç","doi":"10.12714/egejfas.41.2.10","DOIUrl":"https://doi.org/10.12714/egejfas.41.2.10","url":null,"abstract":"In industrial aquaculture, producing at high stock densities is inevitable to maximize efficiency and harvest per unit volume. Antibiotics, disinfectants, and other chemicals have become necessary to prevent and control disease outbreaks in intensive fish farming practices. However, the negative impacts of the use of synthetic chemical drugs on environmental health have sparked discussions, making research into alternative treatments inevitable. Medicinal plants offer promising solutions for disease control due to their natural, biodegradable, and antimicrobial properties. The therapeutic properties of plants have been known and safely used in traditional medicine for a long time. The idea that medicinal plants can be utilized in aquaculture as a safer, sustainable, and environmentally friendly practice has begun to be embraced. Although numerous treatment protocols have been developed against metazoan parasites in aquaculture, managing protozoan parasites still poses a significant challenge. A detailed literature review has identified that more than 30 plant species have the potential to control many protozoan pathogens in fish, including Ichthyophthirius multifiliis and Cryptocaryon irritans. Studies highlight the effectiveness of plant-derived compounds in combating parasites and promoting growth, supporting immunity, serving as antibacterial agents, and even as anaesthetics. Since research on medicinal plants predominantly targets commercially valuable fish farming, there is a recognized need for expanded studies on their application in shellfish farming. Collaboration among researchers, institutions, and farmers is crucial in increasing awareness of local medicinal plants and promoting their use. The use of plants with medicinal properties in aquaculture represents a promising path for disease control and sustainable production. Adopting these natural alternatives could align with responsible agricultural practices and meet the urgent need to mitigate the environmental impacts of traditional treatments in the aquaculture industry.","PeriodicalId":504514,"journal":{"name":"Ege Journal of Fisheries and Aquatic Sciences","volume":"3 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141336439","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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