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  • 1
    Publication Date: 2019-03-02
    Print ISSN: 1735-1472
    Electronic ISSN: 1735-2630
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Published by Springer
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  • 2
    Publication Date: 2007-06-01
    Print ISSN: 0924-0136
    Electronic ISSN: 1873-4774
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Elsevier
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  • 3
    Publication Date: 2021-05-19
    Description: The Persian Gulf fisheries are currently managed through regulations that restrict access to the fishery. These controls do not overcome the incentive for overfishing that follows from lack of ownership in open access fisheries. In such situations, more effort is required to maintain fishery resources. ITQ system of fisheries management is increasingly recognized as a practical alternative to traditional regulation methods. Traditional administration of fisheries as a common property has failed to ensure the fishery resource management is a sustainable way. Worldwide, fishery management systems are now turning to sustainable utilization of the fishery resources. ITQ's are part of this transition. Shrimp fishermen's opinion on the current shrimp management system and the possible change to a new ITQ system is examined in this study. We used a questionnaire and a stratified random sampling method, through which a total of 144 fishermen were interviewed in Hormozgan province. Descriptive statistics and contingency tables were used to estimate the agreement of fishermen with ITQ system in the study area. The results indicated that most of the fishermen do not agree with the change in the shrimp management system. Despite this result, the interviews showed that the younger, more experienced, highly educated and lower income fishermen mostly agree with the change in the current management system compared to other groups. Although the overall result does not endorse the move towards using ITQ system, but we believe that the ITQ system provides a new management system that efficiently reduces current problems.
    Description: Published
    Keywords: Shrimp ; Fishery management ; Shrimp fisheries ; Marine ; Quota ; ITQ
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.111-122
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  • 4
    Publication Date: 2021-05-19
    Description: Due to increased shrimp production costs and consequent final price, shrimp farmers in Hormuzgan province have lost their advantage in the domestic and international markets. In this connection, technical and economic efficiency enhancement can be a way to decrease shrimp cost price. In this study, using data envelope analysis (DEA) and an input-oriented model, technical and scale efficiency of 26 shrimp farms were measured in the province in the year 2006. Results show that 54% of shrimp farms are technically inefficient, while minimum and average pure technical efficiency are 0.69 and 0.92 respectively. Also, 77% of shrimp farms have scale inefficiency and minimum and average of scale efficiency were 0.59 and 0.90, respectively. In addition, 73% of the farms have increasing return to scale. As a result, shrimp production costs can be reduced even more using economy of scale.
    Description: Published
    Keywords: Shrimp ; Assessing ; Technical ; Scales ; Production ; Fisheries Economics ; Utilization
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.109-120
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  • 5
    Publication Date: 2021-05-19
    Description: The project of the Study on fishing and resource management of fisheries within Southern Caspian Sea was conducted on the base of an agreement made between fisheries organization (Shilat) and the Iranian fishery research organization (IFRO) signed in 2010. In this library-based study the current situation of bony fish fisheries and biology of these species has been surveyed in Iranian waters of the Caspian Sea . In this survey internal and external environmental factors of bony fishes activities were considered. Using SWOT analysis method, current situation of fisheries was investigated..One of the most important strategies for conserving anadromous species such as Caspian kutum , common carp, roach , bream and …. is rehabilitation of the natural spawning ground in rivers, coastal lagoon specially Anzali lagoon .By conducting this strategy not only restocks of bony fishes is done ,but also reduced the cost of artificial restocking programs and releasing fingerlings .In short term , it is nessesary to enhance the stocks of the species that have low catch is done by huge releasing of the fingerlings and study the qualification of the program.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Environmental ; Bony fishes ; Distribution ; Stocks ; Biology ; Fishing ; Species ; Caspian kutum ; Common carp ; Roach ; Bream ; Spawning ; Fingerlings
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 117pp.
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  • 6
    Publication Date: 2021-05-19
    Description: The project of the Study on fishing and resource management of fisheries within Southern Caspian Sea was conducted on the base of an agreementmade between fisheries organization (Shilat) and the Iranian fishery research organization (IFRO) signed in 2010. The study has several phases. The final report of the fishery on fishing and resource management of fisheries within Southern Caspian Sea (Gilan, Mazandaran & Golestan provinces) is consisted of several sections such as: 1- The Survey status of biology and catch of Kilka fishes , Bony fishes and Estrogen fishes and also the status of aquatic resource conservation in the Southern part of Caspian Sea 2- Fishing analysis in the Southern part of Caspian Sea 3- Fisheries development Strategies, policies and plans in the Southern part of Caspian Sea In this survey and library-based study, internal and external environmental factors of shilat activities are considered. Using SWOT analysis method, current situation of fisheries is investigated. In this regard, all fisheries activities were divided into four groups, then, the strengths, weaknesses, opportunities and treats of internal and external environment will be analyzed. A considerable number of tables and matrixes were prepared and policies and strategies as seen of final report were carried out.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Resource management ; IFRO ; Shilat ; Fishing ; Kilka ; Fisheries ; Survey ; Biology ; Bony fishes ; Estrogen ; Environmental factors
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 84pp.
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  • 7
    Publication Date: 2021-05-19
    Description: Culture of sturgeon species is of great economic and ecological importance for those countries such as Iran whose natural stocks have declined. This species has shown a good growth performance in many types of production systems and in tanks with different sizes. Recently, sturgeon species is also offering good prospects for aquaculture in north of Iran, including: Guilan, Mazandaran and Golestan provinces. Several species of sturgeon are now considered attractive candidates for whole-cycle production in Iran. Production analysis may help manager of a sturgeon farm in decision making and in adjusting to changes. Economic assessment provides a basis not only for decision making among farm managers but also for formulating government aquaculture policies. Over the period 2006, based on previous experiments with cultured cam, shrimp and trout farming, total costs, total income, profitability and the contribution of production costs for sturgeon farming were determined by completing questionnaires. Among the various expenditures in the year 2006, labor costs had the greatest share and averaged 25% of the total costs. Feed costs averaged more than 17% of the Costs and fingerling costs averaged 10% of the costs. Results show, on average, total cost per kg production of sturgeon was IR Rials 40,587 (US$ 4.51) in 2006. Total income per kg production of sturgeon meat averaged IR Rials 68,125 (US$ 7.57), and profitability per kg production of sturgeon meat also averaged IR Rials 27,944 (US$ 3.11). The results suggest that farmers are doing more efficiently and have better conditions in Mazandaran, resulting in higher farm income per kg, followed by Guilan province.
    Description: Published
    Keywords: Variable Costs ; Sturgeon fish ; Farm ; Economics ; Ecological ; Species
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.101-112
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  • 8
    Publication Date: 2021-05-19
    Description: Caspian Sea with an area of 400 thousand square kilometers is the largest lake in the world. The Caspian Sea about 1200 km from north to south on the longest section and an average width of 320 km. Along the coastline around the Caspian Sea is about 6500 kilometers. Caspian Sea is about 78,000 cubic kilometers of water volume that is 44% of stocks of blue lakes around the world. Caspian Sea basin, which is composed of seven major basins of the main watershed from west to east are: juniper, Talsh- Anzali, large Sefidrood between Haraz Sefid and, Hraz- Gharehsou, Nagorno Sv- Gorgan and Atrak in the basin of Aras no limits to the beach. Aras sub-basin is located in the North West and Iran, the second largest sub-basin of the Caspian Sea. Talysh-Anzali on the Caspian Sea basin West and the seventh largest sub-basin of the Caspian Sea. White basin is located in the South East of the Caspian Sea and the extent of the sub-basin of the Caspian Sea. Haraz located in the south Caspian Sea basin and the ninth largest sub-basin of the Caspian Sea. Gorgan is located in the South East of the Caspian Sea basin and the fourth largest sub-basin of the Caspian Sea. In these areas, about 28 percent of the total fish production in the northern waters of aquatic allocated.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Environmental ; Ecological ; Fisheries
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 58pp.
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  • 9
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    In:  http://aquaticcommons.org/id/eprint/23755 | 18721 | 2018-07-25 06:59:20 | 23755 | Iranian Fisheries Science Research Institute
    Publication Date: 2021-07-15
    Description: The Persian Gulf fisheries are currently managed through regulations that restrict access to the fishery. These controls do not overcome the incentive for overfishing that follows from lack of ownership in open access fisheries. In such situations, more effort is required to maintain fishery resources. ITQ system of fisheries management is increasingly recognized as a practical alternative to traditional regulation methods. Traditional administration of fisheries as a common property has failed to ensure the fishery resource management is a sustainable way. Worldwide, fishery management systems are now turning to sustainable utilization of the fishery resources. ITQ's are part of this transition. Shrimp fishermen's opinion on the current shrimp management system and the possible change to a new ITQ system is examined in this study. We used a questionnaire and a stratified random sampling method, through which a total of 144 fishermen were interviewed in Hormozgan province. Descriptive statistics and contingency tables were used to estimate the agreement of fishermen with ITQ system in the study area. The results indicated that most of the fishermen do not agree with the change in the shrimp management system. Despite this result, the interviews showed that the younger, more experienced, highly educated and lower income fishermen mostly agree with the change in the current management system compared to other groups. Although the overall result does not endorse the move towards using ITQ system, but we believe that the ITQ system provides a new management system that efficiently reduces current problems.
    Keywords: Fisheries ; Fishery management ; Quota ; shrimp ; ITQ ; Hormozgan province ; Persian Gulf ; Iran
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 111-122
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  • 10
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    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25444 | 18721 | 2018-09-23 17:01:05 | 25444 | Iranian Fisheries Science Research Institute
    Publication Date: 2021-07-16
    Description: The project of the Study on fishing and resource management of fisheries within Southern Caspian Sea was conducted on the base of an agreement made between fisheries organization (Shilat) and the Iranian fishery research organization (IFRO) signed in 2010. In this library-based study the current situation of bony fish fisheries and biology of these species has been surveyed in Iranian waters of the Caspian Sea . In this survey internal and external environmental factors of bony fishes activities were considered. Using SWOT analysis method, current situation of fisheries was investigated..One of the most important strategies for conserving anadromous species such as Caspian kutum , common carp, roach, bream and …. is rehabilitation of the natural spawning ground in rivers, coastal lagoon specially Anzali lagoon .By conducting this strategy not only restocks of bony fishes is done ,but also reduced the cost of artificial restocking programs and releasing fingerlings .In short term , it is nessesary to enhance the stocks of the species that have low catch is done by huge releasing of the fingerlings and study the qualification of the program.
    Keywords: Ecology ; Management ; Iran ; Caspian Sea ; Anzali lagoon ; Bony fishes ; Distribution ; Stocks ; Biology ; Fishing ; Species ; Caspian kutum ; Common carp ; Roach ; Bream ; Spawning ; Fingerlings
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 117
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