Pub Date : 1900-01-01DOI: 10.20431/2454-7670.0501005
Nathan Huysman, E. Krebs, M. E. Barnes, J. Voorhees
Circular tanks are used for fish rearing because they homogeneously distribute oxygen, provide velocity for fish exercise, and are hydraulically self-cleaning [1-6]. However, they are typically barren, devoid of any internal structures usually found in complex natural environments. Environmental enrichment is the practice of placing structure within hatchery rearing units, or otherwise modifying them to more closely resemble natural habitats.
{"title":"Use of Two Vertically-Suspended Environmental Enrichment Arrays during Rainbow Trout Rearing in Circular Tanks","authors":"Nathan Huysman, E. Krebs, M. E. Barnes, J. Voorhees","doi":"10.20431/2454-7670.0501005","DOIUrl":"https://doi.org/10.20431/2454-7670.0501005","url":null,"abstract":"Circular tanks are used for fish rearing because they homogeneously distribute oxygen, provide velocity for fish exercise, and are hydraulically self-cleaning [1-6]. However, they are typically barren, devoid of any internal structures usually found in complex natural environments. Environmental enrichment is the practice of placing structure within hatchery rearing units, or otherwise modifying them to more closely resemble natural habitats.","PeriodicalId":212275,"journal":{"name":"International Journal of Innovative Studies in Aquatic Biology and Fisheries","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123143056","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 : 1900-01-01DOI: 10.20431/2454-7670.0701003
Samuel, Patrick Ozovehe, Ayanwale
The anthropogenic activities culminating in environmental pollution all over the world thatusually leads to release of plethora of pollutants such as cadmium calls for concern. In the present study the effects of cadmium chloride on the production of antioxidants such as Alanine AminoTransferase (ALT) in C.gariepinus and how such effects can be ameliorated through administration of vitamins were investigated.C.gariepinus fingerlings (whose initial weight ranged from 3-11g) were exposed to sub-lethal concentrations of Cd (00, 12mg/L, 16mg/L, 20mg/L and 24mg/L) with replicate in each case. Minimum concentration of the toxicant was taken as the concentration for each of the vitamins and administered across all treatments. Fresh concentrations of both toxicant and vitamins were administered every 72 hours for a period of 12 weeks every time the water medium was changed.The various treatments group include Cd (Cd only with T1-T4 and replicates), CdVA (Cd+vitamin A with T1-T4 and replicates), CdVC (Cd+vitamin C with T1-T4 and replicates) and CdVE (Cd+vitamin E with T1-T4 and replicates). 3 samples of the fish were randomly selected and sacrificed from each aquarium tank every 2 weeks of the exposure period. The gills, kidneys and liver were excised from these specimens and homogenized in sodium phosphate buffer. From the results: In samples exposed to Cd only, the ALT production levels in the liver of the fish showed that T1 and T4 in the 2 and 4 weeks of exposure, respectively are significantly higher than other treatments including the control. The control mean values in the 6 and 8 weeks of exposure, respectively are significantly higher than other treatments. T1 in the 10 week of exposure are significantly higher than other treatments. The highest ALT produced in the liver was65.43±0.10nM/mg obtained in T4 at the end of the 6 week of exposure. T1 and T4 in the kidneys of the samples at the end of the 2 and 4 weeks of exposure, respectively are significantly higher than other treatments. The control mean values in the 6 and 10 weeks of exposure are significantly higher than other treatments. T4 inthe 8 week of exposure are significantly higher than other treatments including the control. T4 in the 4 week of exposure recorded the highest ALT value of 71.87±0.20nM/mgin the kidney of the samples. The T3 and T4 in the gills of the samples in the 2 and 4 weeks of exposure are significantly higher than other treatments. T2 in the 6 week of exposure are significantly higher than other treatments. The control in the 8 and 10 weeks of exposure, respectively are significantly higher than other treatments. The highest ALT produced in the gill was 62.97±0.05nM/mgobtained in T2 at the end of the 6 week of exposure. In samples exposed to CdVA, the ALT production levels in the liver indicated that T4 in both 2 and 4 weeks of exposure, respectively are significantly higher than other treatments. The T3 and T2 mean in the6 and 8 weeks of exposure, respectively are s
{"title":"Assessment of the Ameliorative Roles of Vitamins A, C and Eon Alanine Aminotransferase (ALT) Productionin Clariasgariepinus (Burchell, 1822) Fingerlings Exposed To Cadmium Chloride","authors":"Samuel, Patrick Ozovehe, Ayanwale","doi":"10.20431/2454-7670.0701003","DOIUrl":"https://doi.org/10.20431/2454-7670.0701003","url":null,"abstract":"The anthropogenic activities culminating in environmental pollution all over the world thatusually leads to release of plethora of pollutants such as cadmium calls for concern. In the present study the effects of cadmium chloride on the production of antioxidants such as Alanine AminoTransferase (ALT) in C.gariepinus and how such effects can be ameliorated through administration of vitamins were investigated.C.gariepinus fingerlings (whose initial weight ranged from 3-11g) were exposed to sub-lethal concentrations of Cd (00, 12mg/L, 16mg/L, 20mg/L and 24mg/L) with replicate in each case. Minimum concentration of the toxicant was taken as the concentration for each of the vitamins and administered across all treatments. Fresh concentrations of both toxicant and vitamins were administered every 72 hours for a period of 12 weeks every time the water medium was changed.The various treatments group include Cd (Cd only with T1-T4 and replicates), CdVA (Cd+vitamin A with T1-T4 and replicates), CdVC (Cd+vitamin C with T1-T4 and replicates) and CdVE (Cd+vitamin E with T1-T4 and replicates). 3 samples of the fish were randomly selected and sacrificed from each aquarium tank every 2 weeks of the exposure period. The gills, kidneys and liver were excised from these specimens and homogenized in sodium phosphate buffer. From the results: In samples exposed to Cd only, the ALT production levels in the liver of the fish showed that T1 and T4 in the 2 and 4 weeks of exposure, respectively are significantly higher than other treatments including the control. The control mean values in the 6 and 8 weeks of exposure, respectively are significantly higher than other treatments. T1 in the 10 week of exposure are significantly higher than other treatments. The highest ALT produced in the liver was65.43±0.10nM/mg obtained in T4 at the end of the 6 week of exposure. T1 and T4 in the kidneys of the samples at the end of the 2 and 4 weeks of exposure, respectively are significantly higher than other treatments. The control mean values in the 6 and 10 weeks of exposure are significantly higher than other treatments. T4 inthe 8 week of exposure are significantly higher than other treatments including the control. T4 in the 4 week of exposure recorded the highest ALT value of 71.87±0.20nM/mgin the kidney of the samples. The T3 and T4 in the gills of the samples in the 2 and 4 weeks of exposure are significantly higher than other treatments. T2 in the 6 week of exposure are significantly higher than other treatments. The control in the 8 and 10 weeks of exposure, respectively are significantly higher than other treatments. The highest ALT produced in the gill was 62.97±0.05nM/mgobtained in T2 at the end of the 6 week of exposure. In samples exposed to CdVA, the ALT production levels in the liver indicated that T4 in both 2 and 4 weeks of exposure, respectively are significantly higher than other treatments. The T3 and T2 mean in the6 and 8 weeks of exposure, respectively are s","PeriodicalId":212275,"journal":{"name":"International Journal of Innovative Studies in Aquatic Biology and Fisheries","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121349328","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 : 1900-01-01DOI: 10.20431/2454-7670.0503004
Y. MomohM., N. DeekaeS., U. GabrielU.
Variations in some antioxidants (Catalase, Superoxide dismutase and Glutathione-S-Transferase) in the plasma of juveniles and adult sizes of Clarias gariepinus exposed to three on-farm procedures (starvation, overcrowding and sorting) were determined spectrophotometrically to evaluate oxidative stress in fish exposed to these aquaculture operations. Blood samples were collected from juveniles and adults of catfish exposed to these conditions. The samples were analyzed with Randox test kits. Results from antioxidants analysis showed that the control values of catalase (CAT) superoxide dismutase (SOD) and Glutathione-S-transferase (GST) enzymes activities in the plasma of C.gariepinus (juveniles and adults) from control farm ranged between (0.71 – 0.85Umg/protein); (0.38 – 0.50Umg/protein) and (0.34 – 0.37Umg/protein) respectively. In juvenile and adult fish exposed to these handling stress, the catalase reduced significantly (P<0.05) in both sizes when compared to the control, while Superoxide dismutase and Glutathione transferase values increased significantly. These alterations were more pronounced in the juvenile fish than adult. An indication that juvenile fish were more stressed than adult fish in the rearing facilities.
采用分光光度法测定了暴露于三种养殖过程(饥饿、过度拥挤和分选)的幼鱼和成鱼血浆中某些抗氧化剂(过氧化氢酶、超氧化物歧化酶和谷胱甘肽- s -转移酶)的变化，以评估暴露于这些养殖操作的鱼的氧化应激。研究人员采集了暴露在这些条件下的幼鱼和成年鲶鱼的血液样本。采用Randox检测试剂盒对样品进行分析。抗氧化剂分析结果表明，对照农场鸡沙颡鱼(幼鱼和成鱼)血浆过氧化氢酶(CAT)、超氧化物歧化酶(SOD)和谷胱甘肽- s -转移酶(GST)活性控制值为(0.71 ~ 0.85 μ g/蛋白);(0.38 ~ 0.50 ug /protein)和(0.34 ~ 0.37 ug /protein)。处理后幼鱼和成鱼过氧化氢酶均显著低于对照组(P<0.05)，超氧化物歧化酶和谷胱甘肽转移酶显著升高。这些变化在幼鱼身上比在成鱼身上更为明显。说明在养殖设施中，幼鱼受到的压力大于成鱼。
{"title":"Effect of Handling Stress on Selected Antioxidants in two Sizes of African Catfish (Clarias Gariepinus)","authors":"Y. MomohM., N. DeekaeS., U. GabrielU.","doi":"10.20431/2454-7670.0503004","DOIUrl":"https://doi.org/10.20431/2454-7670.0503004","url":null,"abstract":"Variations in some antioxidants (Catalase, Superoxide dismutase and Glutathione-S-Transferase) in the plasma of juveniles and adult sizes of Clarias gariepinus exposed to three on-farm procedures (starvation, overcrowding and sorting) were determined spectrophotometrically to evaluate oxidative stress in fish exposed to these aquaculture operations. Blood samples were collected from juveniles and adults of catfish exposed to these conditions. The samples were analyzed with Randox test kits. Results from antioxidants analysis showed that the control values of catalase (CAT) superoxide dismutase (SOD) and Glutathione-S-transferase (GST) enzymes activities in the plasma of C.gariepinus (juveniles and adults) from control farm ranged between (0.71 – 0.85Umg/protein); (0.38 – 0.50Umg/protein) and (0.34 – 0.37Umg/protein) respectively. In juvenile and adult fish exposed to these handling stress, the catalase reduced significantly (P<0.05) in both sizes when compared to the control, while Superoxide dismutase and Glutathione transferase values increased significantly. These alterations were more pronounced in the juvenile fish than adult. An indication that juvenile fish were more stressed than adult fish in the rearing facilities.","PeriodicalId":212275,"journal":{"name":"International Journal of Innovative Studies in Aquatic Biology and Fisheries","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116446411","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 : 1900-01-01DOI: 10.20431/2454-7670.0603004
A. Kumari
The Sundarban is an UNESCO declared world heritage site, situated at the southern fringes on the West Bengal state of India. Aquaculture plays a vital role in the socio-economic development of the communities living in the Sunderban eco-region. Present study encompasses the prevailing aquaculture practices and socioeconomic profile of the fish farmers of Indian Sundarban based on a multi-layered cross-sectional questionnaire based survey. The majority of fish farmers have medium sized families (60%) and the aquaculture operations are dominated by male workers (98%). The fish farmers belonged to low Income group (69%) and their annual income lies within 785.75 US$. Majority of the respondent practices traditional type farming (74%) and polyculture is prevalent. Freshwater aquaculture of Sundarban is dominated by Indian Major Carps (IMCs) in combination with other exotic varieties. Composite fish culture is popular throughout the Sundarban and most preferred stocking combination is carps with tilapia (Oreochromis spp.) followed by IMCs with medium and minor carps. Of Sundarban fish farmers, 19% do not give any kind of supplementary feed. The survey revealed that the government, educational institutions and NGOs are unsuccessful to develop sustainable aquaculture practice and methods in Sundarban. The state of West Bengal is the second largest fish producer in India (after Andhra Pradesh) and is dominated by production from the South and North 24 Parganas district. Total fish Production of the state was 1.6 million tons in 2000-2001 which was increased to tune up the production of 1.5 million tons in 2013-2014 from an approximately 5.45 lakh ha area. Aquaculture is a rapidly growing food producing sector in the world. Even though capture fishery represented 58% of total fish production in 2012, it has remained relatively stable throughout the last three decades. The source of significant growth in the global production of fish since the late 1980s has been culture fishery (aquaculture) with an average annual growth rate of 8.8%1. The production from world food fish aquaculture more than doubled from 32.4 million tons in 2000 to 66.6 million tons in 2012 with an average annual growth rate of 6.2 % in the period 2000–2012 1. India is the second largest fish producer in the world after China and in 2012 India produced 3.8 million tons farmed food fish from the inland sector 1. In India, national average annual consumption of fish and fish products is 2.85 kg capita-1 in 2010 which accounts for 2.2% of total protein consumption Fishery in Sunderban is the most important and major source of livelihood in the people living there. The forests of Sunderban is located at the situated at the southern fringes on the West Bengal state of India. There are a number of famous tourist spots in the city. Most of the fishermen in the city are from and they use the boats to get their catches from the sea Fishery in sunder ban offers all kinds of fishing activity. Ther
{"title":"Aquaculture as Emerging Industry in Sustainable Development in Sundarbans","authors":"A. Kumari","doi":"10.20431/2454-7670.0603004","DOIUrl":"https://doi.org/10.20431/2454-7670.0603004","url":null,"abstract":"The Sundarban is an UNESCO declared world heritage site, situated at the southern fringes on the West Bengal state of India. Aquaculture plays a vital role in the socio-economic development of the communities living in the Sunderban eco-region. Present study encompasses the prevailing aquaculture practices and socioeconomic profile of the fish farmers of Indian Sundarban based on a multi-layered cross-sectional questionnaire based survey. The majority of fish farmers have medium sized families (60%) and the aquaculture operations are dominated by male workers (98%). The fish farmers belonged to low Income group (69%) and their annual income lies within 785.75 US$. Majority of the respondent practices traditional type farming (74%) and polyculture is prevalent. Freshwater aquaculture of Sundarban is dominated by Indian Major Carps (IMCs) in combination with other exotic varieties. Composite fish culture is popular throughout the Sundarban and most preferred stocking combination is carps with tilapia (Oreochromis spp.) followed by IMCs with medium and minor carps. Of Sundarban fish farmers, 19% do not give any kind of supplementary feed. The survey revealed that the government, educational institutions and NGOs are unsuccessful to develop sustainable aquaculture practice and methods in Sundarban. The state of West Bengal is the second largest fish producer in India (after Andhra Pradesh) and is dominated by production from the South and North 24 Parganas district. Total fish Production of the state was 1.6 million tons in 2000-2001 which was increased to tune up the production of 1.5 million tons in 2013-2014 from an approximately 5.45 lakh ha area. Aquaculture is a rapidly growing food producing sector in the world. Even though capture fishery represented 58% of total fish production in 2012, it has remained relatively stable throughout the last three decades. The source of significant growth in the global production of fish since the late 1980s has been culture fishery (aquaculture) with an average annual growth rate of 8.8%1. The production from world food fish aquaculture more than doubled from 32.4 million tons in 2000 to 66.6 million tons in 2012 with an average annual growth rate of 6.2 % in the period 2000–2012 1. India is the second largest fish producer in the world after China and in 2012 India produced 3.8 million tons farmed food fish from the inland sector 1. In India, national average annual consumption of fish and fish products is 2.85 kg capita-1 in 2010 which accounts for 2.2% of total protein consumption Fishery in Sunderban is the most important and major source of livelihood in the people living there. The forests of Sunderban is located at the situated at the southern fringes on the West Bengal state of India. There are a number of famous tourist spots in the city. Most of the fishermen in the city are from and they use the boats to get their catches from the sea Fishery in sunder ban offers all kinds of fishing activity. Ther","PeriodicalId":212275,"journal":{"name":"International Journal of Innovative Studies in Aquatic Biology and Fisheries","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116574196","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 : 1900-01-01DOI: 10.20431/2454-7670.0502004
G. G. Bake, R. Theophilus, A. Abdullahi, D. Nwangwu, M. Aliyu
Intensive fish production involves the input of supplementary and complete feeds which often represent a large part of production costs (Chen and Tsai, 1994). Fish require proteins, fats, carbohydrates in addition to vitamins and minerals in appropriate proportions to enhance fast growth, optimum health and harvest (Falaye, 1988; Ufodike et al., 2011). Protein assumes a very important place in bodybuilding and replenishing (Davies et al., 1997), and therefore, must be considered as a critical or limiting nutrient. The most common protein source used in aqua feed is the fishmeal and largely derived from small oily fish caught by so-called “industrial fisheries”. Due to the everincreasing demand for fish meal and fish oil for farmed fish and crustaceans, there’s growing concern on over-exploitation of capture fishery derived fish products for aquaculture. This contributes to depletion of certain types of fisheries with negative concomitant effects on other wild fish stock hence unsustainable for aquaculture (Naylor et al., 2000).
集约化鱼类生产涉及补充饲料和全饲料的投入，这往往占生产成本的很大一部分(Chen和Tsai, 1994)。鱼类除了维生素和矿物质外，还需要适当比例的蛋白质、脂肪、碳水化合物，以促进快速生长、最佳健康和收获(Falaye, 1988;Ufodike et al.， 2011)。蛋白质在健身和补充能量中扮演着非常重要的角色(Davies et al.， 1997)，因此，蛋白质必须被视为一种关键或限制性的营养物质。水产饲料中最常见的蛋白质来源是鱼粉，主要来自所谓的“工业渔业”捕获的小型油性鱼类。由于养殖鱼类和甲壳类对鱼粉和鱼油的需求不断增加，人们越来越关注过度开发用于水产养殖的捕捞渔业衍生鱼类产品。这导致某些类型的渔业枯竭，同时对其他野生鱼类种群产生负面影响，因此水产养殖不可持续(Naylor等人，2000年)。
{"title":"Growth Response and Haematological Indices of Hybrid Catfish Fingerlings Fed Varying Inclusion Levels of Fermented Sword Bean (Canavalia Gladiata) Seed Meal in a Concrete Tank","authors":"G. G. Bake, R. Theophilus, A. Abdullahi, D. Nwangwu, M. Aliyu","doi":"10.20431/2454-7670.0502004","DOIUrl":"https://doi.org/10.20431/2454-7670.0502004","url":null,"abstract":"Intensive fish production involves the input of supplementary and complete feeds which often represent a large part of production costs (Chen and Tsai, 1994). Fish require proteins, fats, carbohydrates in addition to vitamins and minerals in appropriate proportions to enhance fast growth, optimum health and harvest (Falaye, 1988; Ufodike et al., 2011). Protein assumes a very important place in bodybuilding and replenishing (Davies et al., 1997), and therefore, must be considered as a critical or limiting nutrient. The most common protein source used in aqua feed is the fishmeal and largely derived from small oily fish caught by so-called “industrial fisheries”. Due to the everincreasing demand for fish meal and fish oil for farmed fish and crustaceans, there’s growing concern on over-exploitation of capture fishery derived fish products for aquaculture. This contributes to depletion of certain types of fisheries with negative concomitant effects on other wild fish stock hence unsustainable for aquaculture (Naylor et al., 2000).","PeriodicalId":212275,"journal":{"name":"International Journal of Innovative Studies in Aquatic Biology and Fisheries","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133676502","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 : 1900-01-01DOI: 10.20431/2454-7670.0701004
Fish and its products are essential constituents in the feeding regime of most Nigerians, to some extent, because it is comparatively a cheaper protein source when compare to other sources of animal protein [1]. Additionally, fish constitutes about 40-50% of the animal protein intake of the average Nigerian [2, 3]. It plays an important role in improving the food security and nutritional status of many families in the country. Many families depend largely on fish, on a daily basis. The fish is consumed indifferent forms as smoked, dried, fried or steamed [4.5]. Also fish have been described as the sole accessible and affordable source of animal protein for poor household in urban and rural areas [6]. The importance of fish as crucial-elements in the diets of family member such as infants, young children and pregnant women, is now widely recognized [7]. Most of the fishes consumed by the families in different parts of the country come mostly from three main sources, capture fisheries, aquaculture and imported fish (Frozen and Stock fish). Their prices vary from one locality to another, which largely depends on demand and level of urbanization [8, 9].
{"title":"Factors Influencing Market Price of Fish in Obio-Akpor Local Government of Rivers State, Nigeria","authors":"","doi":"10.20431/2454-7670.0701004","DOIUrl":"https://doi.org/10.20431/2454-7670.0701004","url":null,"abstract":"Fish and its products are essential constituents in the feeding regime of most Nigerians, to some extent, because it is comparatively a cheaper protein source when compare to other sources of animal protein [1]. Additionally, fish constitutes about 40-50% of the animal protein intake of the average Nigerian [2, 3]. It plays an important role in improving the food security and nutritional status of many families in the country. Many families depend largely on fish, on a daily basis. The fish is consumed indifferent forms as smoked, dried, fried or steamed [4.5]. Also fish have been described as the sole accessible and affordable source of animal protein for poor household in urban and rural areas [6]. The importance of fish as crucial-elements in the diets of family member such as infants, young children and pregnant women, is now widely recognized [7]. Most of the fishes consumed by the families in different parts of the country come mostly from three main sources, capture fisheries, aquaculture and imported fish (Frozen and Stock fish). Their prices vary from one locality to another, which largely depends on demand and level of urbanization [8, 9].","PeriodicalId":212275,"journal":{"name":"International Journal of Innovative Studies in Aquatic Biology and Fisheries","volume":"16 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126233587","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 : 1900-01-01DOI: 10.20431/2454-7670.0702002
Rami Hammod, A. Ali, B. Ali
HOceans cover about 71% of the Earth's surface, and seas and oceans provide a tremendous diversity of microbial organisms [18]. The seas and oceans are an important resource of biodiversity that goes well beyond terrestrial environments. It possesses a unique and large group of diverse natural products produced by marine microorganisms [8], [9]. This marine biodiversity is reflected through the chemical diversity and efficacy of organic extracts against bacterial pathogens [7] The rapid development of marine organisms chemistry over the past fifteen years has led to the discovery of a large number of chemical compounds, which have pharmacokinetic, medicinal and toxicological properties towards previously unknown pathogenic human bacteria [16] ,[20]
{"title":"Efficacy of Marine Bacteria against Pathogenic Bacteria","authors":"Rami Hammod, A. Ali, B. Ali","doi":"10.20431/2454-7670.0702002","DOIUrl":"https://doi.org/10.20431/2454-7670.0702002","url":null,"abstract":"HOceans cover about 71% of the Earth's surface, and seas and oceans provide a tremendous diversity of microbial organisms [18]. The seas and oceans are an important resource of biodiversity that goes well beyond terrestrial environments. It possesses a unique and large group of diverse natural products produced by marine microorganisms [8], [9]. This marine biodiversity is reflected through the chemical diversity and efficacy of organic extracts against bacterial pathogens [7] The rapid development of marine organisms chemistry over the past fifteen years has led to the discovery of a large number of chemical compounds, which have pharmacokinetic, medicinal and toxicological properties towards previously unknown pathogenic human bacteria [16] ,[20]","PeriodicalId":212275,"journal":{"name":"International Journal of Innovative Studies in Aquatic Biology and Fisheries","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134454292","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 : 1900-01-01DOI: 10.20431/2454-7670.0503002
M. Taj, S. Abass
During last few decades the concern over the studies on some contaminants like, fertilizers, pesticides and trace metals and their impacts on environmental compartments such as soil, plants and water have attained a great significance. The lithogenic source is the reason of the presence of trace metals in environment and sometimes the concentration of metal fluxes in environment is increased by anthropogenic influences. The industrial activities are mainly included in the anthropogenic influences (Yanina et al. 2015).
近几十年来，人们对肥料、农药、微量金属等污染物及其对土壤、植物和水等环境单元的影响的研究已经引起了极大的关注。成岩源是环境中微量金属存在的原因，有时环境中金属通量的浓度因人为影响而增加。人为影响主要包括工业活动(Yanina et al. 2015)。
{"title":"Proximate Analysis and Heavy Metal Detection in Aquatic Plants of River Satluj, District Kasur","authors":"M. Taj, S. Abass","doi":"10.20431/2454-7670.0503002","DOIUrl":"https://doi.org/10.20431/2454-7670.0503002","url":null,"abstract":"During last few decades the concern over the studies on some contaminants like, fertilizers, pesticides and trace metals and their impacts on environmental compartments such as soil, plants and water have attained a great significance. The lithogenic source is the reason of the presence of trace metals in environment and sometimes the concentration of metal fluxes in environment is increased by anthropogenic influences. The industrial activities are mainly included in the anthropogenic influences (Yanina et al. 2015).","PeriodicalId":212275,"journal":{"name":"International Journal of Innovative Studies in Aquatic Biology and Fisheries","volume":"9 47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124686773","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 : 1900-01-01DOI: 10.20431/2454-7670.0602001
M. Ward, M. E. Barnes
Yellow perch Perca flavescens are an economically important fish species in North America, with considerable recreational and aquaculture interest [1, 2]. They have a stranding reproductive strategy with eggs encased in gelatinous ribbons deposited on vegetation [3]. After water hardening, the egg strand can measure over two meters [4].The closely related Eurasian perch P. fluviatilis also prefers to deposit egg strands on submerged vegetation compared to bare bottom [5], with eggs on vegetation experiencing higher survival than those deposited on the lake bottom [6]. Higher survival of eggs deposited on vegetation may be due to increased ventilation and reduced siltation [7] or decreased micro-organism-induced mortality[6].
{"title":"Vegetation during Incubation Improves the Hatching Success of Yellow Perch Eyed Eggs","authors":"M. Ward, M. E. Barnes","doi":"10.20431/2454-7670.0602001","DOIUrl":"https://doi.org/10.20431/2454-7670.0602001","url":null,"abstract":"Yellow perch Perca flavescens are an economically important fish species in North America, with considerable recreational and aquaculture interest [1, 2]. They have a stranding reproductive strategy with eggs encased in gelatinous ribbons deposited on vegetation [3]. After water hardening, the egg strand can measure over two meters [4].The closely related Eurasian perch P. fluviatilis also prefers to deposit egg strands on submerged vegetation compared to bare bottom [5], with eggs on vegetation experiencing higher survival than those deposited on the lake bottom [6]. Higher survival of eggs deposited on vegetation may be due to increased ventilation and reduced siltation [7] or decreased micro-organism-induced mortality[6].","PeriodicalId":212275,"journal":{"name":"International Journal of Innovative Studies in Aquatic Biology and Fisheries","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128467448","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 : 1900-01-01DOI: 10.20431/2454-7670.0504006
Xilei Liu, Ming Liu, Siti Nurafiqah Basyirah Binti Hussin
Length-weight relationships have been well implicated in fisheries science and population dynamics (Erzini, 1994). In practices, length-weight relationship can be used to estimate weight from length for individual fish, fish length classes, and the standing-crop biomass when the length-frequency distributing is known ( Goncalves et al., 1997; Petrakis and Stergiou, 1995). Apart from field practices, length-weight relationship has also been used to calculate the condition index of selected species as well as to compare the life history and morphological difference between populations from different regions (Nie et al., 2013; Petrakis and Stergiou, 1995). In aquaculture, length-weight relationships can also be used to assess the growth and population parameters of fish cultured in open sea rearing systems for selected species (Philipose et al., 2013).
长度-重量关系在渔业科学和种群动态中有很好的牵连(Erzini, 1994年)。在实践中，当长度-频率分布已知时，长度-重量关系可用于估计单个鱼的长度、鱼的长度类别和直立作物生物量的重量(Goncalves et al.， 1997;Petrakis and Stergiou, 1995)。除了野外实践，长权关系还被用于计算所选物种的条件指数，以及比较不同地区种群之间的生活史和形态差异(Nie et al.， 2013;Petrakis and Stergiou, 1995)。在水产养殖中，长度-重量关系也可用于评估在公海养殖系统中养殖的选定物种的生长和种群参数(Philipose et al.， 2013)。
{"title":"Length-Weight Relationship of Pompano Trachinotus Ovatus cultured in Brunei","authors":"Xilei Liu, Ming Liu, Siti Nurafiqah Basyirah Binti Hussin","doi":"10.20431/2454-7670.0504006","DOIUrl":"https://doi.org/10.20431/2454-7670.0504006","url":null,"abstract":"Length-weight relationships have been well implicated in fisheries science and population dynamics (Erzini, 1994). In practices, length-weight relationship can be used to estimate weight from length for individual fish, fish length classes, and the standing-crop biomass when the length-frequency distributing is known ( Goncalves et al., 1997; Petrakis and Stergiou, 1995). Apart from field practices, length-weight relationship has also been used to calculate the condition index of selected species as well as to compare the life history and morphological difference between populations from different regions (Nie et al., 2013; Petrakis and Stergiou, 1995). In aquaculture, length-weight relationships can also be used to assess the growth and population parameters of fish cultured in open sea rearing systems for selected species (Philipose et al., 2013).","PeriodicalId":212275,"journal":{"name":"International Journal of Innovative Studies in Aquatic Biology and Fisheries","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122144843","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：