Pub Date : 2023-09-01DOI: 10.22271/fish.2023.v11.i5b.2858
Gülşen Uzun Gören, Birol Baki
In this study, it was aimed to adapt the crayfish obtained from Bafra Fish Lakes (Samsun-Turkey) to the aquaculture environment. Weight gain (%), specific growth rate (%g/day) and daily live weight gain (g/day) were determined during the adaptation period. At the initial and final of the study, the average length of crayfish was 11.06±0.14-13.04±0.17cm, carapace length 50.98±0.77-60.82±1.25mm, carapace width 28.23±0.43-33.36±1.12mm, abdomen length 53.89±0.76-64.55±1.24mm, abdomen width 25.92±0.52-30.69±0.67mm, claw length 39.08±1.59-46.25±5.13mm, claw width 15.71±0.47-18.52±1.58mm, weight 42.45±1.90-57.37±2.22g. The average weight gain of crayfish was 35.14±3.21%, the average specific growth rate was 0.30±0.01% and the average daily live weight gain was 0.04±0.03%. As a result, it was determined that the growth values of the adapted crayfish were low due to feeding, and the mortality rate was high during the stressful periods when the water temperature started to rise and the shell change occurred.
{"title":"Adaptation of Crayfish (Astacus leptodactylus Eschscholtz, 1823) to aquaculture environment in Bafra fish lakes (Samsun-Turkey)","authors":"Gülşen Uzun Gören, Birol Baki","doi":"10.22271/fish.2023.v11.i5b.2858","DOIUrl":"https://doi.org/10.22271/fish.2023.v11.i5b.2858","url":null,"abstract":"In this study, it was aimed to adapt the crayfish obtained from Bafra Fish Lakes (Samsun-Turkey) to the aquaculture environment. Weight gain (%), specific growth rate (%g/day) and daily live weight gain (g/day) were determined during the adaptation period. At the initial and final of the study, the average length of crayfish was 11.06±0.14-13.04±0.17cm, carapace length 50.98±0.77-60.82±1.25mm, carapace width 28.23±0.43-33.36±1.12mm, abdomen length 53.89±0.76-64.55±1.24mm, abdomen width 25.92±0.52-30.69±0.67mm, claw length 39.08±1.59-46.25±5.13mm, claw width 15.71±0.47-18.52±1.58mm, weight 42.45±1.90-57.37±2.22g. The average weight gain of crayfish was 35.14±3.21%, the average specific growth rate was 0.30±0.01% and the average daily live weight gain was 0.04±0.03%. As a result, it was determined that the growth values of the adapted crayfish were low due to feeding, and the mortality rate was high during the stressful periods when the water temperature started to rise and the shell change occurred.","PeriodicalId":14048,"journal":{"name":"International Journal of Fisheries and Aquatic Studies","volume":"9 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":"135638636","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 experiment was made with two microalgae that produce HUFA (20:5w3, 22:6w3) used in different metabolisms functions, not only for this crustacean but also all the aquatic species that eat them. Five grams of cysts from Artemia franciscana were hatching and the nauplii were introduced in 180 L plastic containers with 160 L of saline water (60 gL-1). Five experimental treatments were made: A) 100% of Porphyridium; 100% of Pinnularia; c) 50:50% of both microalgae; d) 25% Porphyridium and 75% Pinnularia; e) 75% Porphyridium and 25% Pinnularia. Better production of biomass was obtained in 50:50% of both microalgae with 417.83 g, with Ro value of 16.57, Tc of 16.52, and r value of 0.19. The lowest value was with 100% Porphyridium sp. because all organisms were dyed before 45 days. In the other treatments, the population density decreased during all experiments. The conclusion of this experiment was that is better to use a mixed diet with these two microalgae.
{"title":"The reproductive potential of Artemia franciscana fed with different concentrations mixed diet with Porphyridium cruentum and Pinnularia sp. in laboratory","authors":"Castro MJ, Castro MG, Flores GAF, Tinoco LPI, Salvat NKA","doi":"10.22271/fish.2023.v11.i5c.2863","DOIUrl":"https://doi.org/10.22271/fish.2023.v11.i5c.2863","url":null,"abstract":"This experiment was made with two microalgae that produce HUFA (20:5w3, 22:6w3) used in different metabolisms functions, not only for this crustacean but also all the aquatic species that eat them. Five grams of cysts from Artemia franciscana were hatching and the nauplii were introduced in 180 L plastic containers with 160 L of saline water (60 gL-1). Five experimental treatments were made: A) 100% of Porphyridium; 100% of Pinnularia; c) 50:50% of both microalgae; d) 25% Porphyridium and 75% Pinnularia; e) 75% Porphyridium and 25% Pinnularia. Better production of biomass was obtained in 50:50% of both microalgae with 417.83 g, with Ro value of 16.57, Tc of 16.52, and r value of 0.19. The lowest value was with 100% Porphyridium sp. because all organisms were dyed before 45 days. In the other treatments, the population density decreased during all experiments. The conclusion of this experiment was that is better to use a mixed diet with these two microalgae.","PeriodicalId":14048,"journal":{"name":"International Journal of Fisheries and Aquatic Studies","volume":"1 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":"135688561","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: 10.22271/fish.2023.v11.i5c.2866
Dr. Mala Kumari
Deltamethrin is an insecticide belongs to a group synthetic pyrethroids. The current investigation includes histopathological alteration in the liver, kidney, testis and ovary of Clarias batrachus exposed to a sublethal concentrations (0.015 ppm conc.) of deltamethrin for 30 days. The induced fish showed significant histopathological changes viz. in liver histology showed degeneration, necrosis and hyperemia, testes histology showed spermatogonia cell’s number reduce and condensed, inflammation of cells, tubules vacuolization, and ovary showed follicular cells disruption, epithelial cells degeneration resulted vacuolation, disrupted oogonia with breakdown of germinal vesicle. The present study revealed that deltamethrin affects the fish, Clarias batrachus (Bloch.) at very low concentration.
溴氰菊酯是一类合成拟除虫菊酯类杀虫剂。目前的调查包括暴露于亚致死浓度(0.015 ppm / co .)溴氰菊酯30天的batrachus的肝脏、肾脏、睾丸和卵巢的组织病理学改变。诱导鱼表现出明显的组织病理学变化，肝脏组织学表现为变性、坏死、充血，睾丸组织学表现为精原细胞数量减少、浓缩，细胞炎症，小管空泡化，卵巢表现为卵泡细胞破坏，上皮细胞变性导致空泡化，卵原细胞破坏，生发囊泡破裂。本研究发现，溴氰菊酯在极低浓度下对巴氏克拉氏鱼(claras batrachus)有影响。
{"title":"Histopathological study of vital organs of Clarias batrachus (Linn.) Induced to deltamethrin","authors":"Dr. Mala Kumari","doi":"10.22271/fish.2023.v11.i5c.2866","DOIUrl":"https://doi.org/10.22271/fish.2023.v11.i5c.2866","url":null,"abstract":"Deltamethrin is an insecticide belongs to a group synthetic pyrethroids. The current investigation includes histopathological alteration in the liver, kidney, testis and ovary of Clarias batrachus exposed to a sublethal concentrations (0.015 ppm conc.) of deltamethrin for 30 days. The induced fish showed significant histopathological changes viz. in liver histology showed degeneration, necrosis and hyperemia, testes histology showed spermatogonia cell’s number reduce and condensed, inflammation of cells, tubules vacuolization, and ovary showed follicular cells disruption, epithelial cells degeneration resulted vacuolation, disrupted oogonia with breakdown of germinal vesicle. The present study revealed that deltamethrin affects the fish, Clarias batrachus (Bloch.) at very low concentration.","PeriodicalId":14048,"journal":{"name":"International Journal of Fisheries and Aquatic Studies","volume":"255 12 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":"135736277","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: 10.22271/fish.2023.v11.i5c.2871
A Nagesh Babu, D Srinivasa Rao, KRS Samba Siva Rao
There are many different vaccines available for other industries, but there are very few for the fishing industry. Antibodies are used in shrimp aquaculture to lessen illness. Antibiotic resistance has increased, tissue residues are a problem, and there are trade issues as a result of the indiscriminate use of antibiotics. Alternative approaches must be used to solve the current issue. The use of
{"title":"In vitro evaluation of probiotics and their effect on hatchery production and farming of L. Vannamei","authors":"A Nagesh Babu, D Srinivasa Rao, KRS Samba Siva Rao","doi":"10.22271/fish.2023.v11.i5c.2871","DOIUrl":"https://doi.org/10.22271/fish.2023.v11.i5c.2871","url":null,"abstract":"There are many different vaccines available for other industries, but there are very few for the fishing industry. Antibodies are used in shrimp aquaculture to lessen illness. Antibiotic resistance has increased, tissue residues are a problem, and there are trade issues as a result of the indiscriminate use of antibiotics. Alternative approaches must be used to solve the current issue. The use of","PeriodicalId":14048,"journal":{"name":"International Journal of Fisheries and Aquatic Studies","volume":"8 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":"135782385","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: 10.22271/fish.2023.v11.i5a.2849
Yoboué Koffi Cyprien, Jean-Baptiste Kassi, Brice A. Mobio, K. .. Jeanne, É. Djagoua, Tiémelé Jacques-André
The study we are conducting relates to the Exclusive Economic Zone fishing activities for small pelagic fish (EEZ) Ivorian. This zone is prone to strong in particular the Sardinella aurita whose localization is sometimes difficult because of their strong migration. The methodology used is based on combined analysis of remote sensing data variables ocean biophysics and Sardinella aurita fishing data. The implementation of all these data in a GIS from multi-criteria analysis by linking variables oceanic and fishing data has made it possible to show that the most influential oceanic biophysical parameters in determining the availability zones of Sardinella aurita are temperature (SST), salinity (SSM) and Chlorophyll-a. In addition, the great cold season is the period of the year most predisposed to a better availability of Sardinella aurita in the Ivorian EEZ.
{"title":"Mapping of potential fishing areas of Sardinella aurita in the Ivorian exclusive economic zone (EEZ) from 2010 to 2020","authors":"Yoboué Koffi Cyprien, Jean-Baptiste Kassi, Brice A. Mobio, K. .. Jeanne, É. Djagoua, Tiémelé Jacques-André","doi":"10.22271/fish.2023.v11.i5a.2849","DOIUrl":"https://doi.org/10.22271/fish.2023.v11.i5a.2849","url":null,"abstract":"The study we are conducting relates to the Exclusive Economic Zone fishing activities for small pelagic fish (EEZ) Ivorian. This zone is prone to strong in particular the Sardinella aurita whose localization is sometimes difficult because of their strong migration. The methodology used is based on combined analysis of remote sensing data variables ocean biophysics and Sardinella aurita fishing data. The implementation of all these data in a GIS from multi-criteria analysis by linking variables oceanic and fishing data has made it possible to show that the most influential oceanic biophysical parameters in determining the availability zones of Sardinella aurita are temperature (SST), salinity (SSM) and Chlorophyll-a. In addition, the great cold season is the period of the year most predisposed to a better availability of Sardinella aurita in the Ivorian EEZ.","PeriodicalId":14048,"journal":{"name":"International Journal of Fisheries and Aquatic Studies","volume":"41 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79302601","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: 10.22271/fish.2023.v11.i5a.2843
Kra Yao Quitéloua Francis, Allouko Jean-Renaud, Koné Kinanpara, Kouakou Gnanmien Frédéric, Adon Marie Paulette, Kouassi N’gouan Cyrille, B. Yves
The composition of stomach contents of three developmental stages of Oreochromis niloticus in intensive rearing was determined at the Research Station on Continental Fisheries and Aquaculture of Bouaké (SRPAC-Bouaké, Center of Côte d'Ivoire). The objective of this study was to know the phytoplankton consumed and its proportion ingested by this species in spite of the exogenous food intake. The phytoplankton composition of stomach contents was determined by analyzing the stomachs of 150 specimens including 50 fry, 50 fingerlings and 50 adults. The vacuity coefficient was 28%, 16% and 24% respectively following the same order. The relative importance index (IRI) of prey items allowed the identification of the most important taxa in the food bowls of Oreochromis niloticus and to evaluate their contribution. Thus, Scenedesmus quadricauda, Phacus orbicularis and Pediastrum duplex are the fry preferred prey, Dictyosphaerium pulchellum for fingerlings and Phacus orbicularis and S. quadricauda for adults. In addition, Cyanobacteria with toxinogenic potential such as Cylindrospermopsis raciborskii, Anabaena circinalis, Anabaena cf. spiroides Anabaenopsis circularis, A. circularis var. javanica, A. arnoldii, and Microcystis aeruginosa were found in the food bowls as incidental prey. The species D. pulchellum and S. quadricauda could be isolated and cultivated in the laboratory to evaluate their nutritional qualities.
{"title":"Trophic involvement of phytoplankton in the food bolus of three developmental stages of Oreochromis niloticus (Linnaeus, 1758) in aquaculture","authors":"Kra Yao Quitéloua Francis, Allouko Jean-Renaud, Koné Kinanpara, Kouakou Gnanmien Frédéric, Adon Marie Paulette, Kouassi N’gouan Cyrille, B. Yves","doi":"10.22271/fish.2023.v11.i5a.2843","DOIUrl":"https://doi.org/10.22271/fish.2023.v11.i5a.2843","url":null,"abstract":"The composition of stomach contents of three developmental stages of Oreochromis niloticus in intensive rearing was determined at the Research Station on Continental Fisheries and Aquaculture of Bouaké (SRPAC-Bouaké, Center of Côte d'Ivoire). The objective of this study was to know the phytoplankton consumed and its proportion ingested by this species in spite of the exogenous food intake. The phytoplankton composition of stomach contents was determined by analyzing the stomachs of 150 specimens including 50 fry, 50 fingerlings and 50 adults. The vacuity coefficient was 28%, 16% and 24% respectively following the same order. The relative importance index (IRI) of prey items allowed the identification of the most important taxa in the food bowls of Oreochromis niloticus and to evaluate their contribution. Thus, Scenedesmus quadricauda, Phacus orbicularis and Pediastrum duplex are the fry preferred prey, Dictyosphaerium pulchellum for fingerlings and Phacus orbicularis and S. quadricauda for adults. In addition, Cyanobacteria with toxinogenic potential such as Cylindrospermopsis raciborskii, Anabaena circinalis, Anabaena cf. spiroides Anabaenopsis circularis, A. circularis var. javanica, A. arnoldii, and Microcystis aeruginosa were found in the food bowls as incidental prey. The species D. pulchellum and S. quadricauda could be isolated and cultivated in the laboratory to evaluate their nutritional qualities.","PeriodicalId":14048,"journal":{"name":"International Journal of Fisheries and Aquatic Studies","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84151103","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: 10.22271/fish.2023.v11.i5a.2852
Ikponmwen Efe Gideon, Tukura Echuano Eyiseh
This study investigated heavy metals in water and sediment from contamination sites between Rimi and Kabawa axis by Lower Benue River, Ibi, Taraba state. Heavy metal levels was investigated using atomic absorption spectrometer (AAS) Bulk Scientific Model 210 VGP using spectrometer techniques. The highest concentration of Zinc (Zn) in September/October, was (0.1667 mg/kg) while Cadmium (Cd) recorded a lower mean concentration value (0.0013 mg/kg) in December/January. Concentration ranking profile in water was found to be Zn>Pd>Cu>Cd. Results of heavy metal in sediments during the study from September 2022 to February 2023 revealed significant difference (pPb>Cu>Cd. Zinc (Zn) value show the higher concentration (2.2667 mg/kg) in November and recorded lower value (1.1000 mg/kg) for the month of January and February. Value recorded for Cadmium (Cd) was observed to be lower than those recorded other metals. Higher Cadmium (Cd) values (0.0020 mg/kg) were observed to be high in September, October and January and low value (0.0013 mg/kg) recorded for November, December and February. Mean heavy metals concentrations between water and sediment during the study showed sediment recorded higher value for Zinc (Zn) (2.2667 mg/kg) in November while lower value was recorded for Cadmium (Cd) (0.0013 mg/kg) in November, December and January. Mean concentrations of metals on water showed zinc (Zn) reported higher in September (0.1667 mg/l), October (0.1667 mg/l), November (0.1334 mg/l) and December (0.1334 mg/l), compared to January and February (0.1000 mg/l). The concentration of Lead (Pb) in water recorded higher value in December (0.5147 mg/l), January, November (0.3910 mg/l), and February (0.3497 mg/l), compared to October (0.1647 mg/l), and September (0.1237 mg/l). Result of important physico-chemical parameters measured in water samples during the study period showed total dissolved solid (TDS) recorded the higher value (134.25 mg/l) compare to other parameters. There were significant difference (p
{"title":"Investigation of heavy metals in water and sediment from contamination sites between Rimi and Kabawa axis, lower Benue River, Ibi, Taraba, Nigeria","authors":"Ikponmwen Efe Gideon, Tukura Echuano Eyiseh","doi":"10.22271/fish.2023.v11.i5a.2852","DOIUrl":"https://doi.org/10.22271/fish.2023.v11.i5a.2852","url":null,"abstract":"This study investigated heavy metals in water and sediment from contamination sites between Rimi and Kabawa axis by Lower Benue River, Ibi, Taraba state. Heavy metal levels was investigated using atomic absorption spectrometer (AAS) Bulk Scientific Model 210 VGP using spectrometer techniques. The highest concentration of Zinc (Zn) in September/October, was (0.1667 mg/kg) while Cadmium (Cd) recorded a lower mean concentration value (0.0013 mg/kg) in December/January. Concentration ranking profile in water was found to be Zn>Pd>Cu>Cd. Results of heavy metal in sediments during the study from September 2022 to February 2023 revealed significant difference (pPb>Cu>Cd. Zinc (Zn) value show the higher concentration (2.2667 mg/kg) in November and recorded lower value (1.1000 mg/kg) for the month of January and February. Value recorded for Cadmium (Cd) was observed to be lower than those recorded other metals. Higher Cadmium (Cd) values (0.0020 mg/kg) were observed to be high in September, October and January and low value (0.0013 mg/kg) recorded for November, December and February. Mean heavy metals concentrations between water and sediment during the study showed sediment recorded higher value for Zinc (Zn) (2.2667 mg/kg) in November while lower value was recorded for Cadmium (Cd) (0.0013 mg/kg) in November, December and January. Mean concentrations of metals on water showed zinc (Zn) reported higher in September (0.1667 mg/l), October (0.1667 mg/l), November (0.1334 mg/l) and December (0.1334 mg/l), compared to January and February (0.1000 mg/l). The concentration of Lead (Pb) in water recorded higher value in December (0.5147 mg/l), January, November (0.3910 mg/l), and February (0.3497 mg/l), compared to October (0.1647 mg/l), and September (0.1237 mg/l). Result of important physico-chemical parameters measured in water samples during the study period showed total dissolved solid (TDS) recorded the higher value (134.25 mg/l) compare to other parameters. There were significant difference (p","PeriodicalId":14048,"journal":{"name":"International Journal of Fisheries and Aquatic Studies","volume":"26 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":"135388218","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: 10.22271/fish.2023.v11.i5a.2842
Sonia Sku, M. Tanu, Yahia Mahmud, A. Barman, M. F. Siddique, Anm Rezvi Kaysar Bhiuyan, Md. Nazmul Hossen
Natural breeding of freshwater mussel, Lamellidens marginalis in captive environment had been studied to ensure the availability of juvenile mussel. A method of reproductive influence of farm animal to suit management called controlled breeding. It is aimed at enhances the production number, survival rate as well as optimization of reproductive performance in intensive system. Brood Mussels was stocked at the rate of 80/decimal in three different captive conditions viz Treatment 1; High aquatic vegetation without any disturbance, Treatment-2; Light aquatic vegetation with disturbance and Treatment-3; No aquatic vegetation with disturbance for breeding. As the freshwater mussel needs host fish to fulfill its life cycle, different fish species were stocked at the rate of 150/decimal. Microscopic observation indicated the occurrence of higher glochidia in the gills and fin of Oreochromis niloticus , Puntius sarana and Heteropneustes fossilis during breeding season. After nine month of brood mussel culture juvenile mussels were harvested from the ponds. A total of 2425±122.01 juvenile mussels per decimal were collected from the treatment 1 followed by 750±55.97 and 370±46.70 juvenile mussels from treatment 2 and treatment 3 respectively. During the research period, all activities' water quality parameters were favorable. The study revealed that ponds with high aquatic vegetation provides suitable environment during the breeding season for the breeding of freshwater mussels and high number of juveniles was produced in captive area.
{"title":"Natural propagation of freshwater mussels (Lamellidens marginalis) using vegetation in captive environment","authors":"Sonia Sku, M. Tanu, Yahia Mahmud, A. Barman, M. F. Siddique, Anm Rezvi Kaysar Bhiuyan, Md. Nazmul Hossen","doi":"10.22271/fish.2023.v11.i5a.2842","DOIUrl":"https://doi.org/10.22271/fish.2023.v11.i5a.2842","url":null,"abstract":"Natural breeding of freshwater mussel, Lamellidens marginalis in captive environment had been studied to ensure the availability of juvenile mussel. A method of reproductive influence of farm animal to suit management called controlled breeding. It is aimed at enhances the production number, survival rate as well as optimization of reproductive performance in intensive system. Brood Mussels was stocked at the rate of 80/decimal in three different captive conditions viz Treatment 1; High aquatic vegetation without any disturbance, Treatment-2; Light aquatic vegetation with disturbance and Treatment-3; No aquatic vegetation with disturbance for breeding. As the freshwater mussel needs host fish to fulfill its life cycle, different fish species were stocked at the rate of 150/decimal. Microscopic observation indicated the occurrence of higher glochidia in the gills and fin of Oreochromis niloticus , Puntius sarana and Heteropneustes fossilis during breeding season. After nine month of brood mussel culture juvenile mussels were harvested from the ponds. A total of 2425±122.01 juvenile mussels per decimal were collected from the treatment 1 followed by 750±55.97 and 370±46.70 juvenile mussels from treatment 2 and treatment 3 respectively. During the research period, all activities' water quality parameters were favorable. The study revealed that ponds with high aquatic vegetation provides suitable environment during the breeding season for the breeding of freshwater mussels and high number of juveniles was produced in captive area.","PeriodicalId":14048,"journal":{"name":"International Journal of Fisheries and Aquatic Studies","volume":"51 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78133935","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}
Artemia plays an important role for fish and crustacean fed. The artemia culture system was made in 160 L culture medium at 60 gL-1 salinity. Three experimental diets were made: a) 6 L Pinnularia sp; b) 6 L Porphyridium sp.; and c) 6 L Dunaliella sp. Growth curves were obtained from each experiment. A Life Table was made from each one to obtain the reproductive potential. The highest density value was found in the Dunaliella sp. diet with 85928±233 org 160 L-1, Ro value with 42.25. The lowest density value was obtained with Porphyridium sp. diet con cero value until 39 culture days. Their Ro value was 8.62. The Tc values were similar to the Dunaliella sp. and Pinnularia sp. diet in comparison with the Porphyridium sp. diet. This experiment shows that is necessary to make mixed diets between Pinnularia and Dunaliella to obtain better results of organism densities. The Porphyridium sp. diet cannot be used as the only diet source for Artemia. We suggest that is necessary for Porphyridium sp. diet supply with brown or green microalgae from 21 culture days to complement the nutritional value of the food diet to obtain the biggest rates of survival.
{"title":"Artemia sp. biomass production using three different microalgae (Pinnularia sp., Porphyridium sp., and Dunaliella sp.) with yeast supply","authors":"Castro MJ, Castro MG, Flores GAF, Tinoco LPI, Salvat NKA","doi":"10.22271/fish.2023.v11.i5c.2864","DOIUrl":"https://doi.org/10.22271/fish.2023.v11.i5c.2864","url":null,"abstract":"Artemia plays an important role for fish and crustacean fed. The artemia culture system was made in 160 L culture medium at 60 gL-1 salinity. Three experimental diets were made: a) 6 L Pinnularia sp; b) 6 L Porphyridium sp.; and c) 6 L Dunaliella sp. Growth curves were obtained from each experiment. A Life Table was made from each one to obtain the reproductive potential. The highest density value was found in the Dunaliella sp. diet with 85928±233 org 160 L-1, Ro value with 42.25. The lowest density value was obtained with Porphyridium sp. diet con cero value until 39 culture days. Their Ro value was 8.62. The Tc values were similar to the Dunaliella sp. and Pinnularia sp. diet in comparison with the Porphyridium sp. diet. This experiment shows that is necessary to make mixed diets between Pinnularia and Dunaliella to obtain better results of organism densities. The Porphyridium sp. diet cannot be used as the only diet source for Artemia. We suggest that is necessary for Porphyridium sp. diet supply with brown or green microalgae from 21 culture days to complement the nutritional value of the food diet to obtain the biggest rates of survival.","PeriodicalId":14048,"journal":{"name":"International Journal of Fisheries and Aquatic Studies","volume":"12 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":"135688552","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: 10.22271/fish.2023.v11.i5a.2844
M. Hossain, Newton Saha, Md. Hafijur Rahman, Abdullah-Al-Hasan, Md. jahangir Alam
Aquaculture of stinging catfish is not well developed in the southern coastal region of Bangladesh because of the crevices problem and lack of suitable culture techniques. A study was conducted using bamboo splits made mats and small mesh sized net as fence to develop culture technique for a period of 167 days. Similar sized fingerlings (average weight 5.75 g) were stocked at a density of 600, 800 and 1,000 fish·40 m -2 . Commercial feed was applied once a day at 17.00 to 18.00 pm. The survival varied from 68.64±5.52 to 82.89±4.42%, and the significantly highest survival was found in T 600 . The highest production was found in T 1000 followed by T 800 and T 600 those were not significantly difference among the treatments. The calculation of economic efficiency showed the highest input cost in T 1000 , but the highest economic efficiency was found in T 600 and lowest in T 1000 . The findings indicate that the stocking density in T 600 was appropriate and encouraged to develop stinging catfish culture in the southern coastal wetlands to solve the crevices problem. Adopting this technology, local people may enhance their livelihood and increase the national fish production as well as the economy of the country.
由于狭缝问题和缺乏合适的养殖技术，孟加拉国南部沿海地区的刺鲶养殖不发达。采用竹节垫和小网眼网作围栏，进行了为期167天的培养技术研究。鱼种大小相近(平均体重5.75 g)，放养密度分别为600、800和1000尾·40 m -2。每日1次，下午17:00 ~ 18:00投喂商业饲料。生存率为68.64±5.52 ~ 82.89±4.42%，t600组生存率最高。产量最高的是t1000，其次是t800和t600，处理间差异不显著。经济效率的计算表明，t1000的投入成本最高，t600的经济效率最高，t1000的经济效率最低。结果表明，t600湿地放养密度适宜，宜在南部滨海湿地开展刺鲶养殖，以解决刺鲶裂缝问题。采用这项技术，当地人可以改善他们的生活，增加国家鱼类产量和国家经济。
{"title":"Development of a compatible aquaculture technique of stinging catfish, Heteropneustes fossilis (Bloch) in the southern coastal region of Bangladesh","authors":"M. Hossain, Newton Saha, Md. Hafijur Rahman, Abdullah-Al-Hasan, Md. jahangir Alam","doi":"10.22271/fish.2023.v11.i5a.2844","DOIUrl":"https://doi.org/10.22271/fish.2023.v11.i5a.2844","url":null,"abstract":"Aquaculture of stinging catfish is not well developed in the southern coastal region of Bangladesh because of the crevices problem and lack of suitable culture techniques. A study was conducted using bamboo splits made mats and small mesh sized net as fence to develop culture technique for a period of 167 days. Similar sized fingerlings (average weight 5.75 g) were stocked at a density of 600, 800 and 1,000 fish·40 m -2 . Commercial feed was applied once a day at 17.00 to 18.00 pm. The survival varied from 68.64±5.52 to 82.89±4.42%, and the significantly highest survival was found in T 600 . The highest production was found in T 1000 followed by T 800 and T 600 those were not significantly difference among the treatments. The calculation of economic efficiency showed the highest input cost in T 1000 , but the highest economic efficiency was found in T 600 and lowest in T 1000 . The findings indicate that the stocking density in T 600 was appropriate and encouraged to develop stinging catfish culture in the southern coastal wetlands to solve the crevices problem. Adopting this technology, local people may enhance their livelihood and increase the national fish production as well as the economy of the country.","PeriodicalId":14048,"journal":{"name":"International Journal of Fisheries and Aquatic Studies","volume":"69 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86122074","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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