ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    facet.materialart.
    Unknown
    Experiments on polyculture of pike, Esox lucius,with carps (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: The Goal of project implementation was survey of biological roles of Northern pike, Esox lucius, in decreasing of Coarse fish and other un economics organisms in carps ponds and also increasing of final crops in hectare and determination of Suitable ration of pike in ponds. This project implemented by 5 treatment with 3 replicates for every ones in 2 years . The pike density was 200, 350, 500 and 650 fish individuals per hectare for 1 , 2 , 3 and 4 treatment , Respectively, and fifth treatment was without pike. The treatments of 1 and 3 conducted in first year and other in second year of test period. At first, about 26 brooders Caught from Anzali Lagoon, and reproduced by artificial and semi - natural methoods in Sefidroud Pisheries Research Station in 12–14 °c temperature. Produced larvae reared in earthen ponds and fries reached to weight of 10 -12 g after 45 days. Mean weight, length and survival rates of fish was 12.27 and 32.5 g , 11.44 and 15.83 cm , and 40 and 21% after 45 and 60 days , respectively . The carp density in ponds was 3500 fish individualsper hectar and stocking rates were 55 % silver carp, 20 % common carp , 10 % bighead carp and 15 % grass carp . In throughout of the experiment period, physico – chemical factors measured and plankton ( phyto and zoo) , benthos , un wanted fish and other organisms investigated . The biomass of unwanted fishes reduced to 76/81 and 60/6 % in first and second year of experiments respectively. The results showed that Esox lucius had effect in increasing of objective fish produce about 17.9 % and 3.9 % in first and second period of project implementation respectively . The average of fish produce in pond unit ( 2400 m2 )was 842 kg ( 3508 kg/ha ), 825 kg ( 3439 kg/ha ) and 776 kg ( 3232 kg/ha ) in first , second and control treatments first year of test period , and also in second year was 865 kg ( 3603 kg/ha ), 877 kg ( 3652 kg/ha) and 848 kg ( 3531 kg/ha) in second , fourth and control treatments , respectively . A significant different found in final weight mean of common carp between treatments and Control ponds (P 〈0/05), as the weight of common carp in treatments ponds was 220 % in first year and 191 % in second year more than control pond. In end of the trial, the mean weight of Esox lucius was 265 ± 74, 276 ± 104, 159 ± 33 and 265 ± 89 g in 1, 2, 3 and 4 treatment, respectively. Survival rate of Northern pike in 1 to 4 treatment was 43.8, 55.2, 40 and 35.6 %, respectively.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Biological ; Polyculture ; Pike ; Esox lucius ; Carp ; Survey ; Organisms ; Density ; Temperature ; Larvae ; Earthen ponds ; Plankton ; Survival rate
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 132pp.
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 2
    facet.materialart.
    Unknown
    Feasibility study on semiintensive polyculture of chainess and Indian carps in I.R.IRAN (Guilan province) (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25352 | 18721 | 2018-09-14 06:57:48 | 25352 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: 15000 juvenile Indian majour carps (Labeo Rohita,Cirhinus merigala, Catla catla) imported (200 ) and transferred to the earthen ponds in Astaneh Fisheries Research Station , In order to assess the viability of rearing under the climatic condition of north part of Iran and also achieve some growth parameters from the larval stage to market size.The fry with 300 mg weight, were released in to 12 ponds. Specimens were separated to tree experimental categories: 1= (30%indian carp and 70% chinees carp) , 2= (50%indian carp and 50% chinees carp) , 3= (70%indian carp and 30% chinees carp) .single chinees carp production were used as control . fishes were fed with artificial food and also with the natural products of the ponds which were enriched with organic fertilizers, after being equally stocked in the ponds .During the experiment, oxygen level ,PH, turbidity, and temperature were measured. Monthly fry samples were taken, for weight and length biometrical analysis and also determination of the weight gain percentage, average daily growth rate, specific growth rate. Results have indicated adaptations and considerable growth in this species, with an increase from the initial weight of 300 mg to an average of 13.5±1.6 mg in 50 days period until the end of November for fingerlings. Also the average weight of growing phase (second year of production ) was 647g for Labeo Rohita ,420 g. for Cirhinus merigala and 734g for Catla catla. The special growth rate (SGR)in Roho was 4.51 %.and 3.9 % for merigal and6.2 % for Catla while for Chinees carps SGR was 4.9, 6.7, 7.6 and 5.8 for silver carp,grass carp, common carp and big head respectively. Results revealed that the Indian majour carps compatibility with the condition in Gilan province was succesfull and the combination of species and optimization of their compatibility were remind for futhre studies.
    Keywords: Aquaculture ; Iran ; Guilan Province ; Astaneh ; Indian carp ; Growth ; Labeo Rohita ; Cirhinus merigala ; Catla catla ; Polyculture ; Juvenile ; Earthen ponds ; Fisheries ; Rearing ; Larval stage ; Fry ; Specimens ; Artificial food ; Fertilizers ; pH ; Turbidity ; Temperature
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 68
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 3
    facet.materialart.
    Unknown
    The study and feasibility of Cheshmeh-Ali River and downstream area of Shahid Shah-Charaghy dam in Damghan for aquaculture development (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25523 | 18721 | 2018-10-05 15:26:23 | 25523 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: To reveal the fisheries productivity and to get the maximum possible exploitations of the running water resources, existing potentials for aquaculture in Shit and Kordabad rivers in Tarom of Zanjan province were surveyed in a one year round study. In this way 4 and 3 sampling site were respectively selected in Shit and Kordabad rivers and benthic macroinvertebrates and water samples were collected and analyzed at least two times a season and fish fauna were also sampled and studied only two times during the period. All the measured water quality characteristics(such as O_2, water temperature, pH, nutrients, NH_3, BOD_5 and . . . ) were within the normal range suggested for the cold water fish culture. In both rivers no significant differences (p≤95%) were detected for physicochemical parameters within the study sites except for electrical conductivity and total hardness which differed in the firs and last station. Depletion of Agricultural run off and residual from the adjacent farmlands and municipal drainages into the water body of the rivers, were certainly effective in these changes However none of water quality parameters exceed the maximum permitted level for aquaculture. According to the benthic macroinvertebrates study 38 family of 12 taxa and 26 family of the 11 taxa were identified in Shit and Kordabad rivers respectively, most of them belonged to the aquatic insect larvae of the sensitive groups. Community structure indices and Hilsenhof family level biotic index proved a "very good" to "good" water quality criteria for the study sites in both rivers .One fish species in Shit and five species (4 of them were endemic) were identified in Kordabad river. Despite acceptable water quality in Shit river, some inhibiting factors such as adjacent farmlands and dense agricultural land use, high slope of river valley in most region which cause rare suitable lands for locating aquaculture sites, very limited access to road and electricity supply and lack of acceptability to manipulate or divert river water for fish farms, by the local people, are the major constrains for constructing trout farms in Shit river. However constructing a 15 mt capacity rainbow trout farm is possible at first 2 kilometers of the upstream where the water quality and quantity are relatively better and there are some lands with low slope and access to road and electricity supply. Kordabad river has a similar criteria and water quality and quantity at upstream is desirable for rainbow trout culture. The first 2 kilometer of this river is capable of constructing trout farms in some non cultivated lands. Moreover the Kordabad natural dam reservoir is available to conduct its water for further demands. In addition a total of 75mt rainbow trout production in the form of 2 or 3 separate site is possible in this river. Even though the local climate particularly in Kordabad river is acceptable for carp fishes, however land limitations, soil texture and the high volume of water demands, make warm water fishes commercial production impossible.
    Keywords: Aquaculture ; Iran ; Zanjan province ; Damghan ; Running water ; Aquaculture ; Benthic macroinvertebrates ; Rainbow trout ; Temperature ; pH ; Nutrients ; Water quality ; NH3 ; Species
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 77
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 4
    facet.materialart.
    Unknown
    Experiments on polyculture of pike, Esox lucius, with carps (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25235 | 18721 | 2018-09-07 06:41:04 | 25235 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: The Goal of project implementation was survey of biological roles of Northern pike, Esox lucius, in decreasing of Coarse fish and other un economics organisms in carps ponds and also increasing of final crops in hectare and determination of Suitable ration of pike in ponds. This project implemented by 5 treatment with 3 replicates for every ones in 2 years. The pike density was 200, 350, 500 and 650 fish individuals per hectare for 1, 2, 3 and 4 treatment, respectively, and fifth treatment was without pike. The treatments of 1 and 3 conducted in first year and other in second year of test period. At first, about 26 brooders Caught from Anzali Lagoon, and reproduced by artificial and semi - natural methods in Sefidroud Fisheries Research Station in 12–14 °c temperature. Produced larvae reared in earthen ponds and fries reached to weight of 10 -12 g after 45 days. Mean weight, length and survival rates of fish was 12.27 and 32.5 g, 11.44 and 15.83 cm, and 40 and 21% after 45 and 60 days, respectively. The carp density in ponds was 3500 fish individuals per hectare and stocking rates were 55 % silver carp, 20 % common carp, 10 % bighead carp and 15 % grass carp. In throughout of the experiment period, physico– chemical factors measured and plankton (phyto and zoo), benthos, un wanted fish and other organisms investigated. The biomass of unwanted fishes reduced to 76/81 and 60/6 % in first and second year of experiments respectively. The results showed that Esox lucius had effect in increasing of objective fish produce about 17.9 % and 3.9 % in first and second period of project implementation respectively. The average of fish produce in pond unit (2400 m^2)was 842 kg (3508 kg/ha ), 825 kg (3439 kg/ha) and 776 kg (3232 kg/ha) in first , second and control treatments first year of test period , and also in second year was 865 kg (3603 kg/ha), 877 kg (3652 kg/ha) and 848 kg (3531 kg/ha) in second , fourth and control treatments , respectively. A significant different found in final weight mean of common carp between treatments and Control ponds (P 〈0/05), as the weight of common carp in treatments ponds was 220 % in first year and 191 % in second year more than control pond. In end of the trial, the mean weight of Esox lucius was 265 ± 74, 276 ± 104, 159 ± 33 and 265 ± 89 g in 1, 2, 3 and 4 treatment, respectively. Survival rate of Northern pike in 1 to 4 treatment was 43.8, 55.2, 40 and 35.6 %, respectively.
    Keywords: Aquaculture ; Iran ; Sefidroud River ; Polyculture ; Pike ; Esox lucius ; Carp ; Survey ; Organisms ; Density ; Temperature ; Larvae ; Earthen ponds ; Plankton ; Survival rate
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 132
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 5
    facet.materialart.
    Unknown
    Survey and feasibility study for the introduction of native fish and non- native fish for cage culture in the southern part of Caspian Sea (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25809 | 18721 | 2018-10-13 10:15:02 | 25809 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: The aim of this study is the feasibility of introducing suitable species of fish (native and exotic) for rearing in cages in the southern region of the Caspian Sea. This study from the perspective of economic efficiency and maintaining ecology were analyzed. The results showed that the southern Caspian Sea has the ability to aquaculture fish. However, due to the yearly temperature variations of water (from surface to a depth of 50 meters), the talent of aquaculture area is preferred for fish in cold water than warm water fish due to possibility rearing over the years. The survey showed that the current conditions and due to unfavorable changes in the ecology of the area in the last decade, the use of non-native fish culture in cages is not recommended. Many species of native fish are suitable for rearing in cages. Nevertheless, there is no infrastructure suitable for the production of all of them. Therefore, respectively species of Salmo caspius, Huso huso and Common carp of Caspian Sea for cultivation of in cages was suggested. In the current situation, this fish for their ability to grow faster than the need for selectivity. It is noteworthy that detailed environmental assessments and species risk assessments before the final introduction of any fish species (native and exotic) for rearing in cages in the Caspian Sea ecosystem is essential.
    Keywords: Aquaculture ; Iran ; Caspian Sea ; Cage culture ; Native fish ; Exotic fish ; Survey ; Feasibility ; Culture
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 90
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 6
    facet.materialart.
    Unknown
    The study and feasibility of Cheshmeh-Ali River and downstream area of Shahid Shah-Charaghy dam in Damghan for aquaculture development (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: To reveal the fisheries productivity and to get the maximum possible exploitations of the running water resources, existing potentials for aquaculture in Shit and Kordabad rivers in Tarom of Zanjan province were surveyed in a one year round study. In this way 4 and 3 sampling site were respectively selected in Shit and Kordabad rivers and benthic macroinvertebrates and water samples were collected and analyzed at least two times a season and fish fauna were also sampled and studied only two times during the period. All the measured water quality characteristics(such as O2, water temperature, pH, nutrients, NH3, BOD5 and . . . ) were within the normal range suggested for the cold water fish culture. In both rivers no significant differences (p≤95%) were detected for physicochemical parameters within the study sites except for electrical conductivity and total hardness which differed in the firs and last station. Depletion of Agricultural run off and residual from the adjacent farmlands and municipal drainages into the water body of the rivers, were certainly effective in these changes However none of water quality parameters exceed the maximum permitted level for aquaculture. According to the benthic macroinvertebrates study 38 family of 12 taxa and 26 family of the 11 taxa were identified in Shit and Kordabad rivers respectively, most of them belonged to the aquatic insect larvae of the sensitive groups. Community structure indices and Hilsenhof family level biotic index proved a "very good" to "good" water quality criteria for the study sites in both rivers .One fish species in Shit and five species (4 of them were endemic) were identified in Kordabad river. Despite acceptable water quality in Shit river, some inhibiting factors such as adjacent farmlands and dense agricultural land use, high slope of river valley in most region which cause rare suitable lands for locating aquaculture sites, very limited access to road and electricity supply and lack of acceptability to manipulate or divert river water for fish farms, by the local people, are the major constrains for constructing trout farms in Shit river. However constructing a 15 mt capacity rainbow trout farm is possible at first 2 kilometers of the upstream where the water quality and quantity are relatively better and there are some lands with low slope and access to road and electricity supply. Kordabad river has a similar criteria and water quality and quantity at upstream is desirable for rainbow trout culture. The first 2 kilometer of this river is capable of constructing trout farms in some non cultivated lands. Moreover the Kordabad natural dam reservoir is available to conduct its water for further demands. In addition a total of 75mt rainbow trout production in the form of 2 or 3 separate site is possible in this river. Even though the local climate particularly in Kordabad river is acceptable for carp fishes, however land limitations, soil texture and the high volume of water demands, make warm water fishes commercial production impossible.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Physical ; Chemical ; Physicochemical ; Commercial ; Running water ; Aquaculture ; Benthic macroinvertebrates ; Rainbow trout ; Temperature ; pH ; Nutrients ; Water quality ; NH3 ; Species
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 77pp.
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 7
    facet.materialart.
    Unknown
    Survay and feasibility study for the introduction of native fish and non- native fish for cage culture in the southern part of Caspian Sea (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: The aim of this study is the feasibility of introducing suitable species of fish (native and exotic) for rearing in cages in the southern region of the Caspian Sea. This study from the perspective of economic efficiency and maintaining ecology were analyzed. The results showed that the southern Caspian Sea has the ability to aquaculture fish. However, due to the yearly temperature variations of water (from surface to a depth of 50 meters), the talent of aquaculture area is preferred for fish in cold water than warm water fish due to possibility rearing over the years. The survey showed that the current conditions and due to unfavorable changes in the ecology of the area in the last decade, the use of non-native fish dulture in cages is not recommended. Many species of native fish are suitable for rearing in cages. Nevertheless, there is no infrastructure suitable for the production of all of them. Therefore, respectively species of Salmo caspius, Huso huso and Common carp of Caspian Sea for cultivation of in cages was suggested. In the current situation, this fish for their ability to grow faster than the need for selectivity. It is noteworthy that detailed environmental assessments and species risk assessments before the final introduction of any fish species (native and exotic) for rearing in cages in the Caspian Sea ecosystem is essential.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Cage culture ; Native fish ; Exotic fish ; Survey ; Feasibility ; Culture
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 90pp.
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 8
    facet.materialart.
    Unknown
    Feasibility study on semiintensive polyculture of chainess and Indian carps in I.R.IRAN (Guilan province) (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-12-05
    Description: 15000 juvenile Indian majour carps (Labeo Rohita,Cirhinus merigala, Catla catla) imported (200 ) and transferred to the earthen ponds in Astaneh Fisheries Research Station , In order to assess the viability of rearing under the climatic condition of north part of Iran and also achieve some growth parameters from the larval stage to market size.The fry with 300 mg weight, were released in to 12 ponds.specimens were separated to tree experimental categories: 1= (30%indian carp and 70% chinees carp) , 2= (50%indian carp and 50% chinees carp) , 3= (70%indian carp and 30% chinees carp) .single chinees carp production were used as control . fishes were fed with artificial food and also with the natural products of the ponds which were enriched with organic fertilizers, after being equally stocked in the ponds .During the experiment, oxygen level ,PH, turbidity, and temperature were measured . Monthly fry samples were taken, for weight and length biometrical analysis and also determination of the weight gain percentage, average daily growth rate, specific growth rate. Results have indicated adaptations and considerable growth in this species, with an increase from the initial weight of 300 mg to an average of 13.5±1.6 mg in 50 days period until the end of November for fingerlings. Also the average weight of growing phase (second year of production ) was 647g. for Labeo Rohita ,420 g. for Cirhinus merigala and 734g. for Catla catla. The special growth rate(SGR)in Roho was 4.51 %.and 3.9 % for merigal and6.2 % for Catla while for Chinees carps SGR was 4.9, 6.7, 7.6 and 5.8 for silver carp,grass carp, common carp and big head respectively. Results revealed that the Indian majour carps compatibility with the condition in Gilan province was succesfull and the combination of species and optimization of their compatibility were remind for futhre studies.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Experimental ; Indian carp ; Growth ; Labeo Rohita ; Cirhinus merigala ; Catla catla ; Polyculture ; Juvenile ; Earthen ponds ; Fisheries ; Rearing ; Larval stage ; Fry ; Specimens ; Artificial food ; Fertilizers ; pH ; Turbidity ; Temperature
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 68pp.
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...