Mesopotamian Journal of Marine Sciences最新文献_第3页

Nutrient mass balance for improved traditional coastal shrimp ponds of Bangladesh 孟加拉国改良传统沿海虾池的营养物质平衡

Mesopotamian Journal of Marine Sciences Pub Date : 2022-04-25 DOI: 10.58629/mjms.v26i2.174

P. Barua, H. Zamal, M. Chowdhury

{"title":"Nutrient mass balance for improved traditional coastal shrimp ponds of Bangladesh","authors":"P. Barua, H. Zamal, M. Chowdhury","doi":"10.58629/mjms.v26i2.174","DOIUrl":"https://doi.org/10.58629/mjms.v26i2.174","url":null,"abstract":"Three category of tidal water exchange system depended ponds have been selected for the experiments which were canal connected, river connected and pond connected pond. Present study was undertaken to estimate the nutrient balance into the coastal shrimp ponds of Cox’s Bazar coastal region. It was found that mineral fertilizer, organic fertilizer, feed, fish and shrimp fry, water supply and rainfall are the nutrient input and crop product (fish, shrimp, crab), crop residues, denitrification, water discharge and sedimentation are the nutrient output for shrimp pond. Estimation of overall nutrient mass balance per hector basis indicates that fertilizer was the highest nutrient contributor as followed by the supplementary feed into the experimental ponds. The total inputs of nitrogen and phosphorus were 78.87 kgha-1cycle-1 and 42.85 kgha-1cycle-1 respectively. Among the input only 34.6 % of nitrogen and 7.20 % of phosphorus were removed as harvested shrimp, fish and crab. A large portion, 38.58 % of N and 91.38 % of P were remained in the sediments and unaccounted for. From the investigation on nutrient balance for 3 categories of shrimp ponds it was concluded that Reuse water or pond connected pond system for coastal shrimp ponds should not be practiced anywhere in Bangladesh \u0000 \u0000 ","PeriodicalId":259361,"journal":{"name":"Mesopotamian Journal of Marine Sciences","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124675306","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}

引用次数: 0

The effect of copper and cadmium on oxygen consumption of the juvenile common carp, Cyprinus carpio (L.) 铜和镉对鲤鱼幼鱼耗氧量的影响

Mesopotamian Journal of Marine Sciences Pub Date : 2022-04-25 DOI: 10.58629/mjms.v26i1.188

B. K. Hassan

引用次数: 8

Small-scale Fishermen along the Naaf River, Bangladesh in Crisis: A framework for management 危机中的孟加拉国纳夫河沿岸的小规模渔民:管理框架

Mesopotamian Journal of Marine Sciences Pub Date : 2022-04-25 DOI: 10.58629/mjms.v26i2.181

M. Chowdhury, M. Hossain, N. Das, P. Barua

{"title":"Small-scale Fishermen along the Naaf River, Bangladesh in Crisis: A framework for management","authors":"M. Chowdhury, M. Hossain, N. Das, P. Barua","doi":"10.58629/mjms.v26i2.181","DOIUrl":"https://doi.org/10.58629/mjms.v26i2.181","url":null,"abstract":"Fishing is the most important traditional economic activity of the coastal communities in Bangladesh due to the availability of the diverse fishery resources. The Naaf River estuary is one of the large estuaries in Bangladesh coast, which plays a significant role in the socioeconomic condition of local community and considered as a major source of income through small-scale fishing. This paper highlights d the chronic problems and relative actions through sustainable management of small-scale fishermen of Naaf river. Community based participatory approach (PRA/RRA) was used for semi-structured questionnaire interviews of 120 small-scale fishermen from the three fishing communities soliciting information on their activities, financial flows and the main problems confronting their enterprise. Furthermore, 24 focus group discussions were arranged with different stakeholders to collect data on the organization and management of small-scale fishing as well as to get their opinions on the problems, causes and their consequences. The present study revealed that local communities in Teknaf coast are highly dependent on fisheries resources of the Naaf River. Major problems identified within the fishing community were high dependency to fishery resources, annual catch reduction, catch price fluctuation, by catch discard, lack of processing and preservation facilities, credit facilities, and training supports resulting in a disorganized fishing community with poor economic return. To ensure the sustainability, the fisheries sector need to overcome these increasing problems through management plan focusing on optimum fishery resources exploitation taking into account the top down and bottom up views of different stakeholders, “Community Based Fisheries Co-management” framework has formulated for long term sustainability and livelihood security of local community. This will go along way to help sustain the coastal fisheries resources with active participation of the fishermen.","PeriodicalId":259361,"journal":{"name":"Mesopotamian Journal of Marine Sciences","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125930505","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}

引用次数: 6

Practice and Economics of Freshwater Prawn Farming in Seasonally Saline Rice Field in Bangladesh 孟加拉国季节性盐田养殖淡水对虾的实践与经济

Mesopotamian Journal of Marine Sciences Pub Date : 2022-04-25 DOI: 10.58629/mjms.v26i1.192

A. Hasanuzzaman, M. Rahman, S. Islam

引用次数: 7

Note on feeding relationships of three species of cyprinid fish larvae in Al-Huwaiza marsh, Southern Iraq 伊拉克南部Al-Huwaiza沼泽中三种鲤科鱼幼鱼的摄食关系

Mesopotamian Journal of Marine Sciences Pub Date : 2022-04-25 DOI: 10.58629/mjms.v26i1.189

S. Ahmed

{"title":"Note on feeding relationships of three species of cyprinid fish larvae in Al-Huwaiza marsh, Southern Iraq","authors":"S. Ahmed","doi":"10.58629/mjms.v26i1.189","DOIUrl":"https://doi.org/10.58629/mjms.v26i1.189","url":null,"abstract":" Food composition of three cyprinid larvae (Cyprinus carpio, Carassius auratus and Alburnus mosulensis) in Al-Huwaiza marsh has been studied during March and April 2006. The diet of these cyprinid larvae were consist mainly of zooplankton dominated by copepods both adult and larval stages followed by Cladocera Rotifera, aquatic insects and Ostracoda. The food of plant origin also exists and consists of diatoms and filamentous algae. Costello graphical plot showed that these larvae are generalist feeders. This strategy result in lower competition and allow these three species to co-occur in relatively high density in this marsh area. The food similarity between C. carpio and C. auratus was 0.60, between C. carpio and A. mosulensis was 0.44, while it was 0.72 between C. auratus and A. mosulensis. The food overlap analysis showed that C. carpio; C. auratus and A. mosulensis larvae share a wide range of prey types. Competition for food is possible However, direct competition seemed to be avoided to some extent as a result of great food availability in Al-Huwaiza marsh which makes it as a suitable nursery and feeding site for many cyprinid fish. \u0000 ","PeriodicalId":259361,"journal":{"name":"Mesopotamian Journal of Marine Sciences","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123234701","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}

引用次数: 0

First record of Derogenes varicus and Dinurus scombri (Digenea: Hemiurata) from Red Sea fishes, Yemen 也门红海鱼类中首次记录varicus和Dinurus scombri

Mesopotamian Journal of Marine Sciences Pub Date : 2022-04-25 DOI: 10.58629/mjms.v26i2.178

A. Al-Zubaidy, F. Mhaisen

引用次数: 3

Bulid-up a flow injection analysis unit for ammonium determination in the Shatt Al-Arab water 建立了流动注射分析装置，用于测定阿拉伯河水中的铵

Mesopotamian Journal of Marine Sciences Pub Date : 2022-04-25 DOI: 10.58629/mjms.v26i1.190

Y. Al-Jorany, K. H. Al-Sowdani, A. A. Mizhir

引用次数: 1

Larval tapeworms (Cestoda: Trypanorhyncha) from some Red Sea fishes, Yemen 也门一些红海鱼类的幼虫绦虫(绦虫纲:锥虫纲)

Mesopotamian Journal of Marine Sciences Pub Date : 2022-04-25 DOI: 10.58629/mjms.v26i1.186

A. Al-Zubaidy, F. Mhaisen

引用次数: 12

Environmental functions of the Teknaf Peninsula mangroves of Bangladesh to communicate the values of goods and services 孟加拉国特克纳夫半岛红树林的环境功能，传达商品和服务的价值

Mesopotamian Journal of Marine Sciences Pub Date : 2022-04-25 DOI: 10.58629/mjms.v26i1.193

M. Chowdhury, Md. Sabir Hossain, A. Mitra, P. Barua

{"title":"Environmental functions of the Teknaf Peninsula mangroves of Bangladesh to communicate the values of goods and services","authors":"M. Chowdhury, Md. Sabir Hossain, A. Mitra, P. Barua","doi":"10.58629/mjms.v26i1.193","DOIUrl":"https://doi.org/10.58629/mjms.v26i1.193","url":null,"abstract":"Mangroves are highly productive wetland ecosystems and extremely important coastal resources providing a variety of environmental goods and services, which are vital to our socio-economic development. To evaluate the role of mangroves, a total of 75 semi-structured interviews were conducted with coastal community, resource user, government official, NGO personnel, researchers, and private entrepreneur to gather primary and secondary information. Results indicated that in the past 30 years there has been planted about 1,460 ha of euryhaline mangroves under different management regimes. Teknaf peninsula mangrove influenced two key variables viz., productivity and physical structure which direct other ecological processes. The variable ‘productivity’ provide suitable habitat for nursery, growth, migration through recycling waste and nutrients. The respondents identified 13 mangrove resource user groups in Teknaf peninsula which shows high dependency to mangroves goods. The catch of finfishes, shrimps and prawns, crabs, molluscs, etc. from the mangroves area contributes value to the small-scale fisheries. The knowledge gained from the information content of the Teknaf peninsula mangroves ecosystem contributes value to scientific and educational community. In particular, it means that environmental goods and services provided by the Teknaf peninsula mangroves are rarely produced independently and the multiple interdependencies involved in providing such environmental supports. \u0000 ","PeriodicalId":259361,"journal":{"name":"Mesopotamian Journal of Marine Sciences","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131239801","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}

引用次数: 9

Uptake and depuration of water-soluble fractions (WSF) of crude oil by the bivalve Corbicula fluminea (Müller) from Shatt Al-Arab river 阿拉伯河双壳类生物Corbicula fluminea (m<s:1> ller)对原油水溶性组分(WSF)的吸收和净化

Mesopotamian Journal of Marine Sciences Pub Date : 2022-04-25 DOI: 10.58629/mjms.v26i2.180

H. T. Al-Saad, W. Farid, A. Al-Adhub

{"title":"Uptake and depuration of water-soluble fractions (WSF) of crude oil by the bivalve Corbicula fluminea (Müller) from Shatt Al-Arab river","authors":"H. T. Al-Saad, W. Farid, A. Al-Adhub","doi":"10.58629/mjms.v26i2.180","DOIUrl":"https://doi.org/10.58629/mjms.v26i2.180","url":null,"abstract":"This study includes laboratory uptake and depuration experiments. The bivalve C. fluminea is exposed to 5ml of WSF of Nahran–Umar crude oil for each liter of river water for 48 hours in the static toxicity test system. The exposure water and animals are periodically taken for analysis of total hydrocarbons concentrations by spectroflurometer. After the exposure period is over, the bivalve transferred to clean river water for depuration period of 48 hours. The experiments show that there are no mortalities due to WSF of Nahran–Umar crude oil. The bivalve is usually active during the 12–16 hours of the experiments. Hydrocarbons concentrations in the exposure water decreased are slowly in a linear fashion so that no measurable concentrations remained after 32 hours. Hydrocarbons accumulated by the bivalve are slowly during the first few hours of exposure. After 2 hours of exposure, the concentration of hydrocarbons is approximately 0.38 ppm in water, while in tissues it is 4.8 ppm. After 20 hours, hydrocarbons are present in water at a concentration of 0.09ppm, while the bivalve tissues contained 17.7 ppm hydrocarbons. After 25 hours of exposure, the hydrocarbons concentration decreased in the bivalve tissues. At the end of the exposure period, the bivalve contains approximately 7.4 ppm. After 48 hours in clean river water, tissues burden decreased to 0.22 ppm of hydrocarbons. The bivalve remained contaminated with small concentrations of hydrocarbons for 20 days. The complete depuration occurred at 26 days. \u0000 ","PeriodicalId":259361,"journal":{"name":"Mesopotamian Journal of Marine Sciences","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131582170","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}

引用次数: 0