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  • 1
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    The effect of transverse damage on the shear response of fiber reinforced laminates (2014)
    Elsevier
    Details
    Publication Date: 2014-05-01
    Print ISSN: 0266-3538
    Electronic ISSN: 1879-1050
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Elsevier
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  • 2
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    The feasibility of Gamasiab river area fish farming of rainbow trout (Onchorhynchus mikiss) (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: This study was carried out about 15 months to determine suitable locations for the development of aquaculture across the Gamasiab river of Hamedan province in 2007 - 2008. Physicochemical parameters and macro benthic invertebrates fauna15 and 13 staitions respectively every 45 days and seasonally fish identify in 8 stations were performed according standard methods. The average water temperature was 12.8±3.7 oC, minimum and maximum dissoled oxygen were 2.6 and 12.5 mg/lit respectively during the study. The pH range was between 7.5-8.8 , the minimum and maximum Ec was 250 and 750 µmos/cm in Mehr and Tir.The transparency range was recorded about 1-103 F.T.U. The uder factors such as amount of suspended materials: 0.01-0.1 mg/l, amount of BOD5: 0.05-6.2 mg/l and COD: 30 (minimum) and 70.57 (maximum) were recirded. The total solids material (T.S.S) were less than 1 mg/lit. Totally 37 groups of bentic organisms were identified which 11 groups of them were appertained to pollutionsensitive orders containing Ephemeroptera, Trichoptera and Plecoptera. During fish population studied 21 species belonging 5 family were identified. Based on obtained results of biological, ecological, economic and social parameters, 10 sites in 7 areas were suitable identified for fish rearing and 12 aquaculture programs (10 plan for fish rearing and 2 plan for increasing fish production of (Onchorhynchus mikiss).The minimum and maximum production capacity in mentioned places was stimated about 1675 and 3850 tons respectively.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Feasibility ; Complexes of fish farms ; Biotic and Abiotic factors ; Onchorhynchus mikiss ; Rainbow trout
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 92pp.
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  • 3
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    Caspian brown trout (Salmo trutta caspius ) broodstock supply in south western of the Caspian Sea ( Guilan province ) (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: Caspian trout (Salmo trutta caspius ) is one of the migratory fish species which lives and feeds in the Caspian Sea .This species distributed in south and western of the Caspian Sea . In order to rehabilitation of the Caspian trout in western area, the operation of the project started from the beginning of the fishing season of the 20112012. Specimens of the Caspian trout obtained from beach seine cooperatives and have been transferred to the fish farm in Asalem region .Totally, 44 specimens of the Caspian trout has been caught in two month period .Most of the fishes was from Kargan roud river . The mean length and weight of the brood fishes were 67.7 cm and 3122.7 g respectively .As at present Shilat uses just the broods of the Tonekaboon region for restocking of this species ,we recommend to use the broods of the western region separately for rehabilitation of the stocks of this region .
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Caspian trout ; Salmo trutta caspius ; Broods ; Rehabilitation ; Broodstock ; Migratory fish ; Species ; Specimens
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 30pp.
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  • 4
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    Evaluation of restocking program in north Alborz (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: Gillan , Mazandaran and Gorgan provinces have temperate climate, thus they have more potential for aquatic animal culture. There are thousands hectare of lands for Aquaculure and fisheries in adjacent to Caspian Sea in this provinces. these areas(North alborz) have provided a favorable back ground for aquatic animal breeding and stock enhancement of species in the sea. As a result, this investigation executed during two stages (phases). At first stage, the goal of this project included the feasibility study and demonstrating the existing situation of fish stock enhancement activities in North Alborz area and second phase is to survey on distribution, and production activities of stock enhancing hatcheries as well as their constructions,and production time table. Survey was started frome 2006 to 2008 by using qestionaries in 7 hatcheries from tree provinces.results revieled that there are more than 10 species was subjected to restocking .Total releasing was about 300 millions of fry and finger lings in to the Caspian sea.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Stock Enhancement ; Broodstock ; Production ; Yield ; Artificial propagation ; Bony fishes ; Sturgeon fishes ; Restocking ; Aquatic ; Culture ; Aquaculure ; Fisheries ; Breeding ; Survey ; Hatcheries ; Fry ; Fingerlings
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 191pp.
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  • 5
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    Identification, density and dispersal assessment of phytoplankton in Lar Reservoir (2018)
    Details
    Publication Date: 2021-05-19
    Description: Phytoplankton identification, density and dispersal assessment were conducted from June to October 2005 in Lar Reservoir. Samples were taken by simple plankton net (30 mu m mesh size) and by Ruttner from different depths (0, 5, 10, 20, 30m) and then fixed with formalin 4%. We used inverted microscope in the laboratory to study the samples. We distinguished 34 genera of phytoplanktons consisting of 7 Phyla. Number of genera for Bacillariophyta was 11, for Euglenophyta was 1, for Chlorophyta was 11, for Cyanophyta was 5, for Pyrrophyta was 3, for Cryptophyta 1 and for Chrysophyta was 2. Phylum Bacillariophyta was dominant comprising 82.83% of phytoplankton population annually. Cyclotella, Navicula and Nitzchia were the dominant genera. Phylum Chlorophyta was second in dominance and consisted of Oocystis, Pediastrum, Scenedesmus and Chlorella genera altogether sharing 12.89% of the total phytoplankton frequency. Chrysophyta with genera Dinobryon and Malomonas had a frequency of 2.21%, Cyanophyta with Genera Anabaena, Oscillatoria and Gleocapsa comprised 1.32% of the total frequency, Pyrrophyta with genera Cyratium, and Peridinium had a frequency of 0.52%, Euglenophyta with genus Euglena had a frequency of 0.13% and Cryptophyta with genus Cryptomonas had a frequency of 0.08%.
    Description: Published
    Keywords: Seasons ; Depth ; Dominant species ; Density ; Frequency ; Identification ; Phytoplanktons ; Freshwater
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.99-108
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  • 6
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    Evaluation of the effect of different levels of Pontogammarus maeoticus extract on growth indices, carcass composition and mucosal safety of Rutilus kutum, Kamenskii, 1901 (2020)
    Details
    Publication Date: 2021-05-19
    Description: In this study, the effect of diets containing different levels of Pontogammarus maeoticus extract as natural nutrient attractant was investigated on growth indices, chemical composition and mucosal Immunity of Rutilus kutum. For this purpose, fish with an average weight of 0.35±0.067 were stored in 100L fiberglass tanks containing 30 liters water with a density of 20 fish per tank for eight weeks. To perform this study, Gammaridae extracts were mixed with distilled water in three concentrations: 1:25 (25%), 1:50 (50%), 1:75 (75%) and two percent of each dilution was added to manual meals before each feeding. This experiment was performed as four triplicated treatments. Larvae were fed four times a day. At the end of the culture, growth indices such as: mean body weight gain, specific growth factor, food conversion ratio, survival, chemical analysis of carcasses and some mucosal immune parameters including; lysozyme, immunoglobulin, alkaline phosphatase and protease were studied. The results showed that although growth factor and carcass analysis were improved in all treatments (25%), this increase was not significant compared to the control (p〉0.05). All Mucus immune factors significantly increased in all treatments compare to control (p〈0.05). The result of this study showed that the Gammaridae extract had no significant effect on the improvement of growth performance, but increased the immunity of Rutilus frisii in culture conditions.
    Description: Published
    Keywords: Rutilus frisii kutum ; Fish ; Mocuse ; Growth factor ; Immune system
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.47-55
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  • 7
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    The features of the feeding of Caspian marine shad, Alosa braschnikowii (Borodin, 1904) in western part of the Caspian Sea (2021)
    In:  http://aquaticcommons.org/id/eprint/21751 | 18721 | 2017-11-30 04:32:38 | 21751 | University of Guilan, Faculty of Natural Resources, Iran
    Details
    Publication Date: 2021-06-30
    Description: Feeding habits of Caspian marine shad Alosa braschnikowii (Borodin, 1904), inhabiting in the western part of Caspian Sea such as prey spectrum and seasonal dynamics have been studied. As in other parts of Caspian Sea, throughout the year, the main hunt of Caspian marine shad constituted kilkas, gobies and shrimps while other groups of zoobenthos were represented in a lesser extent. Importance of other fishes and zoobenthos in the diet of Caspian marine shad is influenced by their ecological morpho-functional peculiarities. Seasonal changes of species composition and proportions of fodder food items are caused by life cycles of fishes and migrations of fodder entities. The changes of food composition depending length of fishes, the depth and haul region are analyzed. Caspian marine shad most intensively feeds in spring (March – April) before spawning and in summer (July) after spawning.
    Keywords: Biology ; Fisheries ; features ; feeding ; Alosa braschnikowi ; diet ; food ; zoobenthos ; gobies ; kilka ; Caspian sea ; Iran
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 77-83
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  • 8
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    The feasibility of Gamasiab river area fish farming of rainbow trout (Oncorhynchus mykiss) (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25665 | 18721 | 2018-10-14 03:04:11 | 25665 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: This study was carried out about 15 months to determine suitable locations for the development of aquaculture across the Gamasiab river of Hamedan province in 2007 - 2008. Physicochemical parameters and macro benthic invertebrates fauna 15 and 13 stations respectively every 45 days and seasonally fish identify in 8 stations were performed according standard methods. The average water temperature was 12.8±3.7 oC, minimum and maximum dissoled oxygen were 2.6 and 12.5 mg/lit respectively during the study. The pH range was between 7.5-8.8 , the minimum and maximum Ec was 250 and 750 µmos/cm in Mehr and Tir. The transparency range was recorded about 1-103 F.T.U. The uder factors such as amount of suspended materials: 0.01-0.1 mg/l, amount of BOD5: 0.05-6.2 mg/l and COD: 30 (minimum) and 70.57 (maximum) were recorded. The total solids material (T.S.S) were less than 1 mg/lit. Totally 37 groups of bentic organisms were identified which 11 groups of them were appertained to pollution sensitive orders containing Ephemeroptera, Trichoptera and Plecoptera. During fish population studied 21 species belonging 5 family were identified. Based on obtained results of biological, ecological, economic and social parameters, 10 sites in 7 areas were suitable identified for fish rearing and 12 aquaculture programs (10 plan for fish rearing and 2 plan for increasing fish production of (Oncorhynchus mykiss). The minimum and maximum production capacity in mentioned places was estimated about 1675 and 3850 tons respectively.
    Keywords: Aquaculture ; Iran ; Hamedan province ; Gamasiab river ; Feasibility ; Complexes of fish farms ; Biotic and Abiotic factors ; Oncorhynchus mykiss ; Rainbow trout
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 92
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  • 9
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    Feeding behavior of brown trout, Salmo trutta fario, during spawning season in four rivers of Lar National Park, Iran (2021)
    In:  http://aquaticcommons.org/id/eprint/21698 | 18721 | 2017-11-27 12:07:28 | 21698 | University of Guilan, Faculty of Natural Resources, Iran
    Details
    Publication Date: 2021-06-28
    Description: Brown trout, Salmo trutta fario, has a wide range of distribution in the north of Iran and in Karaj, Lighvanchai and Karun Rivers, but there is no report about its feeding behavior in some water resources including the Lar Natural Park. In order to study feeding behavior of this fish during spawning season, a survey was carried out in the rivers of Elarm, Aab-Sefid, Kamardasht and Delichayi in fall 2008. A total of 140 individuals of brown trout were caught by cast net and electro fishing. Mean weight and length of the samples were 130±79.5 g and 216.9±39 mm, respectively. The age of fish was 2 to 6 years and mean age was 3.02±1.3. The mean relative gut length (RLG) of samples was 0.86±1. It was found that brown trout fed on various preys (32 animal groups), that Chironomidae (88.6%), Simulidae (60%), Baetidae (51.4%) and Tipulidae (50%) have had the most frequency in the gut of brown trout. The proportion of food consumed by trout was Diptera 91.5% (Chironomidae pupa and larvae 85.8%), Coleoptera 6.4% and others 2.1%. Cannibalism was seen scarcely. In conclusion, brown trout consumes a wide range of food items in its spawning season. Therefore, it can be classified as euryphagous and carnivaorous
    Keywords: Biology ; Fisheries ; Salmo trutta fario ; feeding ; spawning ; Lar National Park ; Iran
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 223-233
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  • 10
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    Identification, density and dispersal assessment of phytoplankton in Lar Reservoir (2021)
    In:  http://aquaticcommons.org/id/eprint/23804 | 18721 | 2018-07-27 15:16:09 | 23804 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-15
    Description: Phytoplankton identification, density and dispersal assessment were conducted from June to October 2005 in Lar Reservoir. Samples were taken by simple plankton net (30 mu m mesh size) and by Ruttner from different depths (0, 5, 10, 20, 30m) and then fixed with formalin 4%. We used inverted microscope in the laboratory to study the samples. We distinguished 34 genera of phytoplanktons consisting of 7 Phyla. Number of genera for Bacillariophyta was 11, for Euglenophyta was 1, for Chlorophyta was 11, for Cyanophyta was 5, for Pyrrophyta was 3, for Cryptophyta 1 and for Chrysophyta was 2. Phylum Bacillariophyta was dominant comprising 82.83% of phytoplankton population annually. Cyclotella, Navicula and Nitzchia were the dominant genera. Phylum Chlorophyta was second in dominance and consisted of Oocystis, Pediastrum, Scenedesmus and Chlorella genera altogether sharing 12.89% of the total phytoplankton frequency. Chrysophyta with genera Dinobryon and Malomonas had a frequency of 2.21%, Cyanophyta with Genera Anabaena, Oscillatoria and Gleocapsa comprised 1.32% of the total frequency, Pyrrophyta with genera Cyratium, and Peridinium had a frequency of 0.52%, Euglenophyta with genus Euglena had a frequency of 0.13% and Cryptophyta with genus Cryptomonas had a frequency of 0.08%.
    Keywords: Ecology ; Phytoplankton ; Density ; Lar Reservoir ; Tehran Province ; Iran
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 99-108
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