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  • 1
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    Limnological study of Taham lake in Zanjan province in order to assess aquaculture possibility (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: The Taham dam reservoir has been established in order to provide drinking water of Zanjan population as far as 15 km in a mountain region at 1900 meter altitude with a 317 ha surface area. This study was conducted on biotic and a biotic factors in order to recognize of aquaculture possibility within drinking considerations. The results showed the less abundance of phytoplankton with 2 million/l. where abundant of zooplankton was 266 /l. Bacillariophyta and Chlorophyta belong to phytoplankton and Rotatoria belong to zooplankton were dominated among identified plankton phylum. There were identified 45 and 32 genus of phytoplankton and zooplankton respectively. There were identified 5 groups of benthos that Tubificidae, Hirudina had the most frequency, and the biomass of benthos was varied from 1.1 to 23.7 g /m2. The ichtiology survey showed presence of 6 species in the lake that Alburnoides bipunctatus, Capoeta capoeta, , Leuciscus cephalus were the most abundance in the catch. L. cephalus was recorded with the maximum size of 870 g while the most frequent weight class was 150 450 g for C. capoeta,, L. cephalus . Diet survey showed the adequate feeding of fishes in lake also the observation of leech in trout guts was very considerable. The reproduction study displayed that a partial of matured fishes were succeed in breeding. Leuciscus cephalus have been known as a typical species with commercial size and high abundance which will be needed a fisheries management in Taham Lake to sustainable exploitation. The hidrochemical results indicated low nutrients values while total nitrogen was varied from 0.32 to 0.61 mg/l. and the Chl-a was varied from 7.9 to 25.9 μg/l.. The oxygen amount was 4.5 to 8.4 mg/l even in 65 meter depths. Total hardness average was about 149 mg/l where the Ca and Mn were measured in a low values. Trophic model in Taham lake showed the early stage of mesotrophy while other lakes and wetlands in north of Iran had been progressed in mesotrophic level.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Hidrochemical ; Limnological ; Aquaculture ; Population ; Biotic ; Phytoplankton ; Zooplankton ; l. Bacillariophyta ; Chlorophyta ; Rotatoria ; Phylum ; Biomass ; Alburnoides bipunctatus ; Capoeta capoeta ; C. capoeta ; L. cephalus
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 81pp.
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  • 2
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    Limnological study of Taham Lake in Zanjan Province in order to assess aquaculture possibility (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25273 | 18721 | 2018-09-07 08:29:11 | 25273 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: The Taham dam reservoir has been established in order to provide drinking water of Zanjan population as far as 15 km in a mountain region at 1900 meter altitude with a 317 ha surface area. This study was conducted on biotic and a biotic factors in order to recognize of aquaculture possibility within drinking considerations. The results showed the less abundance of phytoplankton with 2 million/l. where abundant of zooplankton was 266 /l. Bacillariophyta and Chlorophyta belong to phytoplankton and Rotatoria belong to zooplankton were dominated among identified plankton phylum. There were identified 45 and 32 genus of phytoplankton and zooplankton respectively. There were identified 5 groups of benthos that Tubificidae, Hirudina had the most frequency, and the biomass of benthos was varied from 1.1 to 23.7 g /m^2. The ichtiology survey showed presence of 6 species in the lake that Alburnoides bipunctatus, Capoeta capoeta, Leuciscus cephalus were the most abundance in the catch. L. cephalus was recorded with the maximum size of 870 g while the most frequent weight class was 150 450 g for C. capoeta,, L. cephalus . Diet survey showed the adequate feeding of fishes in lake also the observation of leech in trout guts was very considerable. The reproduction study displayed that a partial of matured fishes were succeed in breeding. Leuciscus cephalus have been known as a typical species with commercial size and high abundance which will be needed a fisheries management in Taham Lake to sustainable exploitation. The hidrochemical results indicated low nutrients values while total nitrogen was varied from 0.32 to 0.61 mg/l. and the Chl-a was varied from 7.9 to 25.9 μg/l. The oxygen amount was 4.5 to 8.4 mg/l even in 65 meter depths. Total hardness average was about 149 mg/l where the Ca and Mn were measured in a low values. Trophic model in Taham lake showed the early stage of mesotrophy while other lakes and wetlands in north of Iran had been progressed in mesotrophic level.
    Keywords: Limnology ; Iran ; Zanjan province ; Taham lake ; Limnological ; Aquaculture ; Population ; Biotic ; Phytoplankton ; Zooplankton ; l. Bacillariophyta ; Chlorophyta ; Rotatoria ; Phylum ; Biomass ; Alburnoides bipunctatus ; Capoeta capoeta ; C. capoeta ; L. cephalus
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 81
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  • 3
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    The survey of Khandaghloo dam reservoir of Mahneshan city of Zanjan province (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25515 | 18721 | 2018-10-05 07:55:26 | 25515 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: Reservoirs are one of the most constructions for control and water supply for different usage that could have various social an economical effects. The Khandaghloo dam reservoir with area of 100 ha located in Mahneshan city of Zanjan province and related to Parichay river watershed. Khandaghloo reservoir is valuable water body that the aim of its establishment was supply of water for agriculture farms. The reservoir has been studied for responsible and sustainable fisheries exploitation proposes. Results showed that the reservoir categorizes as eutroph to super eutroph based on different indices.Also phosphorous is limiting factor of the water body.Totally 42 genera from 6 phyla including green-blue algae cyanophyta, diatoms (Bacillariophyta), green algae, chlorophyta, euglenophyta, pyrrophyta and xanthophyta has been identified and cyanophyta was the dominant group that comprise 74.3 % of phytoplankton population. The zooplankton of the reservoir comprised 4 phyla and 20 genera. 1 genera of the protozoa and rhizopoda, 1 genra of the ciliophora ,15 genera of rotatoria, 2 genera of cladocera has been identified in zooplankton communities. Tubificidae and chironomidae has been identified in all months of the survey. The mean total length of crayfish was 130.5±20.5 mm ( 636) and mean weight was measured as 69.4±34.1 g with maximum and minimum weight of 1.9 and 207.2 g respectively .Total biomass of crayfish in Khandaghloo reservoir estimated as 3.4 tones with a range of 1.1–5.7 tones. But it is recommended not to harvest for at least two year due to high mortality of the populations.The fishes of the reservoir comprised common carp Chinese carp (silver carp, big head and grass carp) (released), Caspian kutum (accidentally released by fishery sector) and some endemic species as Siamahii. The catch of the reservoir fluctuated between 8 to 26 tones during 2000-2010.The fish production of Khandaghloo reservoir ranged from 167 to 324 kg/ha based on different methods that by consideration of 100 ha area of the reservoir, the total production of fish fluctuated between 16.7 to 32.4 tones. The fingerling restocking of Chinese carp in Khandaghloo reservoir with density of 1500 fingerling/ha recommended as 68% of phytoplanktonivorous fish (silver carp) ,12% zooplanktonivorous fish (big head), 6.6% of Crass carp and 10% of benthophagous fish (common carp).
    Keywords: Ecology ; Iran ; Zanjan province ; Mahneshan ; Khandaghloo dam reservoir ; Parichay river ; Phytoplankton ; Zooplankton ; Benthose ; Crayfish Fish ; Trophy ; Fish production potential ; Cyanophyta ; Bacillariophyta ; Green algae ; Chlorophyta ; Euglenophyta ; Pyrrophyta ; Xanthophyta ; Silver Carp ; Grass carp ; Common carp
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 192
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  • 4
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    Unknown
    The survey of Khandaghloo dam reservoir of Mahneshan city of Zanjan province (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: Reservoirs are one of the most constructions for control and water supply for different usage that could have various social an economical effects . The Khandaghloo dam reservoir with area of 100 ha located in Mahneshan city of Zanjan province and related to Parichay river watershed.Khandaghloo reservoir is valuable water body that the aim of its establishment was supply of water for agriculture farms. The reservoir has been studied for responsible and sustainable fisheries exploitation proposes. Results showed that the reservoir categorizes as eutroph to super eutroph based on different indices.Also phosphorous is limiting factor of the water body.Totally 42 genera from 6 phyla including green-blue algae cyanophyta , diatoms (Bacillariophyta ) , green algae ,chlorophyta , euglenophyta ,pyrrophyta and xanthophyta has been identified and cyanophyta was the dominant group that comprise 74.3 % of phytoplankton population . The zooplankton of the reservoir comprised 4 phyla and 20 genera .1 genera of the protozoa and rhizopoda , 1 genra of the ciliophora ,15 genera of rotatoria , 2 genera of cladocera has been identified in zooplankton communities . Tubificidae and chironomidae has been identified in all months of the survey . The mean total length of crayfish was 130.5 ± 20.5 mm ( 636) and mean weight was measured as 69.4 ± 34.1 g with maximum and minimum weight of 1.9 and 207.2 g respectively .Total biomass of crayfish in Khandaghloo reservoir estimated as 3.4 tones with a range of 1.1 – 5.7 tones . But it is recommended not to harvest for at least two year due to high mortality of the populations.The fishes of the reservoir comprised common carp Chinese carp ( silver carp, big head and grass carp) ( released ) ,Caspian kutum ( accidentally released by fishery sector ) and some endemic species as Siamahii.The catch of the reservoir fluctuated between 8 to 26 tones during 2000-2010.The fish production of Khandaghloo reservoir ranged from 167 to 324 kg/ha based on different methods that by consideration of 100 ha area of the reservoir , the total production of fish fluctuated between 16.7 to 32.4 tones . The fingerling restocking of Chinese carp in Khandaghloo reservoir with density of 1500 fingerling/ha recommended as 68% of phytoplanktonivorous fish ( silver carp ) ,12% zooplanktonivorous fish ( big head ) , 6.6% of Crass carp and 10% of benthophagous fish ( common carp).
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Economical ; Phytoplankton ; Zooplankton ; Benthose ; Crayfish Fish ; Trophy ; Fish production potential ; Cyanophyta ; Bacillariophyta ; Green algae ; Chlorophyta ; Euglenophyta ; Pyrrophyta ; Xanthophyta ; Silver Carp ; Grass carp ; Common carp
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 192pp.
    Location Call Number Expected Availability
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