International Journal of Oceanography & Aquaculture最新文献

{"title":"Toxicity and Bioaccumulation Studies of Heavy Metals on a Freshwater Fish","authors":"Ezeonyejiaku Chigozie Damian","doi":"10.23880/ijoac-16000169","DOIUrl":"https://doi.org/10.23880/ijoac-16000169","url":null,"abstract":"","PeriodicalId":174113,"journal":{"name":"International Journal of Oceanography & Aquaculture","volume":"3 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":"130012812","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}

{"title":"Culture of Soft Shell Mangrove Crab, Scylla Spp. Production in the Southwest Region of Bangladesh","authors":"B. Chakraborty","doi":"10.23880/ijoac-16000166","DOIUrl":"https://doi.org/10.23880/ijoac-16000166","url":null,"abstract":"The experiment was conducted for a rearing for a period of 150 days from mid-September to mid-February 2017 in three earthen ponds with an installing of 9880 cages per hectare with an average depth of 1.0 meter. The experiment was designed at the ponds of Kaligonj Chingri Farm as a treatment T1, Allarchar chingri farm as a treatment T2 and Shamnagar private crab farm as a treatment T3. Before stocking crabs were categorized at five size groups. At stocking, all crabs were with an initial mean carapace width and weight of individual was recorded in three treatments. The average final weight of crab was recorded to be 180.56±4.08, 175.80±7.11 and 178.62±6.42 g in treatment T1, T2 and T3, respectively. The increase in weight of mud crab was the highest in T1 followed by T3 and T2. About five group of different crab weight was stocked in the cages of three treatments. Best SGR (1.67±0.01) and FCR (2.00±0.08) were recorded in treatment T1. The highest survival rate was also observed in T1 and the lowest survival rate was in T2. There was a significant variation (P<0.05) in the survival rate of crabs among three treatments. The net production of crab was at 5082.51, 4689.63 and 4923.48 kg/ha in treatment T1, T2 and T3, respectively. Highest production of soft shell crab was recorded in treatment T1. But no significant (P<0.05) different was recorded in treatment T1 and T3. But a significant (P>0.05) different was found between treatment T2 and treatment T1 and T3. Majority of the crabs about 60-70% molted during night than day time. As the crabs were increased in size, molt duration became longer from 17.0 to 26 days. Overall, highest growth, survival, production and net benefit of soft shell crab recorded at treatment T1. Therefore, treatment T1 and treatment T3 appeared to be most suitable for soft shell crab culture for availability of saline water and trash fish in this area.","PeriodicalId":174113,"journal":{"name":"International Journal of Oceanography & Aquaculture","volume":"351 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":"115971717","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}

{"title":"Indian Mottled Freshwater Eel, Anguilla bengalensis Bengalensis (Gray, 1831), A Threatened Species of Indian Subcontinent- A Review","authors":"A. Mondal","doi":"10.23880/IJOAC-16000162","DOIUrl":"https://doi.org/10.23880/IJOAC-16000162","url":null,"abstract":"The Indian mottled freshwater eel, Anguilla bengalensis bengalensis is globally consumed species which has good demand as a food fish as having high nutritional value. Eels have always been a source for human interest for their interesting shape and size. It was considered a luxury food and consumed as a delicacy by Greeks, Romans, Germans, Japanese and people of several Asian and European countries, whereas in India eels are considered as poor man's food. But their export demand offers scope for culture and live transport to foreign markets. Fish mucous from live fish mixed with rice or wheat flour is used as medicine for arthritis. It has been reported as near Threatened species in IUCN list. The common threats of extinction facing like many other freshwater fishes such as pollution, harmful fishing practices, habitat modification and degradation, environmental degradation, overfishing, game fishing and barrier effects of dams etc. The present study has been prepared with the aim to sum up the available information on different aspects of A. bengalensis bengalensis along with note down the possible measures that should for its conservation.","PeriodicalId":174113,"journal":{"name":"International Journal of Oceanography & Aquaculture","volume":"205 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":"127488693","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}

{"title":"Floating Objects of Non Marine Origin, Rafting of Marine Organisms, and the Interfering Role of Man in Mediterranean Sea","authors":"G. Belmonte","doi":"10.23880/ijoac-16000168","DOIUrl":"https://doi.org/10.23880/ijoac-16000168","url":null,"abstract":"","PeriodicalId":174113,"journal":{"name":"International Journal of Oceanography & Aquaculture","volume":"1 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":"129872884","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}

{"title":"Haematological Responses and Nutrient Utilization of Clarias gariepinus Fed Fermented Groundnut Shell Diets","authors":"Ekundayo Taiye Michael","doi":"10.23880/ijoac-16000171","DOIUrl":"https://doi.org/10.23880/ijoac-16000171","url":null,"abstract":"This research study was carried out to evaluate the use of fermented groundnut shell diet on growth performance and haematological parameters of Clarias gariepinus fingerlings. Semi flow through consist of fifteen plastic bowls were used and ten Clarias gariepinus fingerlings (mean weight (3.00±0.05g) per plastic bowl, each in triplicate. Five treatment bowls were fed experimental diets containing 40.00% crude protein supplemented with fermented groundnut shells. Diet 1 contain unfermented groundnut shell (control diet), diet 2 contain 12 hours fermented groundnut shell without potash, while the other diets, diet 3, 4, and 5 contain fermented groundnut shells with potash at fermentation time of 12, 24, and 48 hours respectively. The highest mean weight gain (MWG) of 5.87g, and specific growth rate (SGR), 0.51%/day was recorded in diet 5. The best feed conversion ratio (FCR) was also recorded in fish fed diet 5 (0.43). There was significant difference (p<0.05) in MWG, SGR, and FCR among the treatments. Results showed that fish fed diet 5 had the best growth performance. Weight gain by fish fed diet 1 (control diet) and diet 5 were not statistically different (p<0.05). But there was statistical difference in among the diets in specific growth rate, feed conversion ratio, and protein efficiency ratio. Results showed that there were increase in the blood parameters of Clarias gariepinus fermented diets compared to the control diet but were statistically different (p<0.05). Highest Packed cell volume of 22.23%, White Blood Cell, 15.50 x 103, red blood cell 9.35 x 106 and Haemoglobin, 10.35 g/dl were recorded in fish fed diet 5. All blood parameters obtained were between the range of recommended fish blood. It is concluded that using fermented groundnut shell as supplementary feed on Clarias gariepinus showed a slight increase in the haematological parameters compared with the control diet but it has no negative effect on the health status of the studied fish. However, diet 5 can be used as feed in aquaculture, to enhance fish health, survival and growth performance.","PeriodicalId":174113,"journal":{"name":"International Journal of Oceanography & Aquaculture","volume":"148 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":"131481336","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}

{"title":"Sensitivity of Fish Pathogenic Bacteria to Almond (Terminalia Catappa) Leaves and Bitter (Vernonia Amygdalina) Leaves Extracts","authors":"O. S. Emmanuel","doi":"10.23880/ijoac-16000158","DOIUrl":"https://doi.org/10.23880/ijoac-16000158","url":null,"abstract":"","PeriodicalId":174113,"journal":{"name":"International Journal of Oceanography & Aquaculture","volume":"140 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":"115174774","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}

{"title":"Formulation of Tenebrio Molitor (Mealworm) Larvae Pellet for Oreochromis Niloticus (Nile Tilapia) Feed Production","authors":"G. Madjos","doi":"10.23880/ijoac-16000174","DOIUrl":"https://doi.org/10.23880/ijoac-16000174","url":null,"abstract":"Mealworms are larval stages of darkling beetles (Tenebrio molitor) which are considered major agricultural pests; however, recently, they are seen as potential fish feeds in the field of aquaculture. This present study aimed to determine the effect of the varying feed formulation of Tenebrio molitor (mealworm) larvae on the growth performance of Oreochromis. niloticus (nile tilapia) and to produce a mealworm pellet out of the study. One hundred eighty (180) juvenile nile tilapia were assigned in net cages in a Randomized Complete Block Design (RCBD) and were fed thrice daily (6:00AM; 12NOON; 6:00PM) for a month with different feed formulations. The formulations were: treatment 1 (T1) = 25g mealworm larvae + 40g cassava starch + 33 ml water; treatment 2 (T2) = 50g mealworm larvae + 40g cassava starch + 38 ml water; treatment 3 (T3) = 75g mealworm larvae + 40g cassava starch + 46 ml water; and treatment 4 (T4) as the control (commercial fish pellets). One-way Analysis of Variance (ANOVA) revealed that there is a highly significant difference (p value: 0.000) in the mean gain weight of O. niloticus between and within groups after being fed with the different feed formulations with T1 obtaining the highest mean weight gain (13.62grams). Post Hoc Analysis (LSD) revealed that the weight gain of O. niloticus (nile tilapia) of T1 was highly significant at α ≤ 0.001. In terms of the storability of the pellet, it did not disintegrate within the time span and can be stored up to six (6) months. Considering that the Philippines imports almost half a billion dollars’ worth of other fish meals such as soybean meal at all seasons of the year, treatment 1 (25g mealworm larvae, 40g cassava starch and 33 ml water) has the potential as an alternative protein feed material in the country.","PeriodicalId":174113,"journal":{"name":"International Journal of Oceanography & Aquaculture","volume":"58 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":"116235030","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}

{"title":"Review on Aquaculture Research in Cameroon: Fish Farming","authors":"Temegne Nono Carine","doi":"10.23880/ijoac-16000170","DOIUrl":"https://doi.org/10.23880/ijoac-16000170","url":null,"abstract":"","PeriodicalId":174113,"journal":{"name":"International Journal of Oceanography & Aquaculture","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":"116186849","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}

{"title":"A Mini Review on Current Status of Aquaculture Sector in Turkey","authors":"Yusuf Bozkurt","doi":"10.23880/ijoac-16000175","DOIUrl":"https://doi.org/10.23880/ijoac-16000175","url":null,"abstract":"Aquaculture is an essential sector providing a considerable portion of the food requirement of the world. Also, aquaculture has been determined as the fastest growing food sector of the world by FAO. Aquatic products obtained by the way of hunting from the seas is limited. Thus, proportion of these products obtaining via aquaculture have been increasing. In accordance with this situation, aquaculture is a rapidly developing sector in Turkey as in the whole world. From this point of view, with the necessary investments and foundation of the friendly environment systems, aquaculture is getting popular in Turkey.","PeriodicalId":174113,"journal":{"name":"International Journal of Oceanography & Aquaculture","volume":"54 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132940183","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}

{"title":"Fisheries Sector and the Marketing Structure in Turkey","authors":"F. Kaygisiz","doi":"10.23880/IJOAC-16000161","DOIUrl":"https://doi.org/10.23880/IJOAC-16000161","url":null,"abstract":"","PeriodicalId":174113,"journal":{"name":"International Journal of Oceanography & Aquaculture","volume":"117 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":"123102385","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}