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  • Ecology  (13)
  • Culture  (6)
  • 1
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    The study and feasibility of Cheshmeh-Ali River and down stream 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: This research was conducted to finding of Cheshmeh-Ali and Shahcheraghi-Dam downstream areas potential for developing of aquaculture industry. The present study was conducted based on available information and data from monthly and seasonally sampling including geographical area, margin lands and fluctuations of river water, seasonal climatic changes view point of rainfall, temperature, wet, evaporation, wind velocity, sunshine hours, frost and also chemical and physical parameters of water including temperature, alkalinity, total hardness, chloride, calcium, magnesium, sodium, potassium, organic phosphorous and nitrogen, suspended solids, turbidity, water flow and flood conditions, and in addition phytoplankton and zooplankton communities, macrobenthic invertebrates, fishes, aquatic plants, amphibians, reptiles, birds. Results showed that the upstream and downstream regions of Shahcheraghi dam are not suitable for warm water aquaculture in earthen ponds. But view point of cold-water aquaculture, particularly trout, there are some good situations. Also it can be suggested different culture systems including of race way, octagonal concrete ponds, semi-circulation and circulation methods. But, due to water restrictions in the area, semi-circulation and circulation system is preferred. In ideal conditions can be produced about 1,600 tones of trout, if all the capacity of this area be used for aquaculture. Otherwise, in limited circumstances view point of exploitation possibility of the water, only about 700 tons can be produced. In addition, there were appropriate facilities in spring area of Cheshmehali for tourism industry, that it can be considered as priorities for economic development in the region. Due to the low sensitivity of the ecologically conditions, native or exotic aquatic species rearing in indoor methods can be recommended.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Chemical ; Physical ; Site selection ; Aquaculture capacity ; Sampling ; Temperature ; Turbidity ; Culture
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 71pp.
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  • 2
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    Adaptation and use of amphipoda in fish culture ponds in order to increase fish production (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: Use and enrichment of live food resource in fish farms have been interested and highly demanded. Crustacean are one of the important groups. The Pontogammarus maeoticus dominated in southern Caspian Sea shore with a high abundance. This study was designed in order to adaptation and usage of amphipoda in fish culture ponds. The first part have been surveyed the laboratory experiments including of; to increasing and developing of P.maeoticus in 200 litter container, the effects of salinity on growth and survival of amphipods in many aquariums, the culture of common carp with amphipods and growth determination of them. Chemical composition analysis of P.maeoticus and carps fed by amphipods in compare to cultured carps from ordinary ponds. Due to concern about common healthy the heavy metal concentration has been measured in P. maeoticus, carp which were fed by amphipods and the cultured carps in earth ponds. In second phase; the adaptation of two amphipods species, P. maeoticus and Obesogammarus acuminatus was studied in fish ponds where some cages with sandy soft substrate had been provided for amphipoda replacement. Also a small surface of ponds surrounded by net and covered by Azola plant, a habitat suitable for to putting of O. acuminatus. Production of amphipoda had not the successfully results in large tanks. Aquariums with Caspian sea water had the prosper results where the specimens were breeding and developing properly, even though in some aquarium with freshwater increased the amphipods number. The chemical composition had not significant difference between two kind of cultured carps while the organic component in amphipoda had a high quality. The better quality of cultured carp by amphipod diet have been confirmed by organoleptic test. The results of heavy metal measurement in amphipoda showed a high concentration which some of them were transmitted to cultured carps. Result of amphipoda replacement in cage was not satisfy and the specimens were died after some days. According to hydro-chemical parameters the oxygen poorness and high trophy levels were the affective factor to abolish of specimens in cages. It seems that there are many type of P.maeoticus that can be adapted in different salinities. The molecular differentiation should be investigated to choose the suitable type of this spices for utilization in freshwater fish ponds. In other hand it can be used in fish culture ponds that will be supplied by brackish water.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Chemical ; Adaptation ; Amphipoda ; Fish ; Culture ; Ponds ; Enrichment ; Pontogammarus maeoticus ; Amphipoda ; Survey ; P.maeoticus ; Common carp ; O. acuminatus ; Oxygen ; Specimens ; Brackish water
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 71pp.
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  • 3
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    The Study of Establishment of Rainbow trout Culture and Hachery’s Farms on Zayanderood’s River region in Caharmahal and Bakhtiyari Province (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: The aim of this study was to find the best location for establishment of rainbow trout culture and hatcheries farms on Zayanderood’s river region in Charmahal and Bakhtiyari province. This survey carried out over ten station along Zayanderood’s river. The result of physical and chemical analysis showd that the annual average of air temperature varied from 9.5oc o 10oc wehre the pH annual average value were between 7.5 and 8.8. the dissolve oxygen concentration in stations except in rainbow trout farm effluent were above 10 mg/l. the other chemical , pollutant as well as pesticides levels were under the limiting concentration for rainbow trout culture and Hatcheries activity . The plankton survey showed that the Bacillurophyta were the dominant group of phytoplankton where protozoa constituted the most abundant group of zooplankton the Benthic organisms sensitive to pollutant in particular Epirus were dominant group in all stations . In regard to fishes presence in river , five species of Ciprinidae , one species from Balitoridae and one species from salmonidae families were identified . The capacity for development of rainbow trout culture for tow phase period in Zayanderood’s river region with respect to self purification potential (self purification potential were determined from the oxidation of the effluent of the only active trout farm of the river region), minimum of 10 L/s water requirement for production of trout in concrete canal and pond system and 1L/S water need for production in semi circular closed system were estimated to be 5202 metric tons.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Physical ; Chemical ; Positioning ; Rainbow trout ; Self purification ; Culture ; Hatchery ; Survey ; Temperature ; pH ; Dissolved oxygen ; Pollutant ; Plankton ; Bacillurophyta ; Phytoplankton ; Protozoa ; Zooplankton ; Benthic organisms ; Ciprinidae ; Balitoridae ; Salmonidae
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 68pp.
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  • 4
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    Investigation of Mnemiopsis leidyi feeding from the Caspian Sea zooplanktons (2021)
    In:  http://aquaticcommons.org/id/eprint/23729 | 18721 | 2018-07-20 18:23:20 | 23729 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-15
    Description: Mnemiopsis leidyi was sampled from December 2003 to March 2005 in 11 stations located along four regions Anzali, Khazarabad, Tourkman and Gorgan Bay using METU net in the Iranian coasts of the Caspian Sea. Study of stomach contents of M. leidyi showed that Acartia sp. belonging to Copepoda and Lamellibranchia sp. had the highest frequency comprising 66% and 13% of food items taken by the organism respectively and the least food items taken were Balanus nauplii, Rotatoria, Tintinnopsis and Podon polyphemoides. The maximum mean abundance of food item was Acartia sp. which was shown to be present in stomach content of M. leidyi caught in different depths, seasons and regions in the Iranian coasts of the Caspian Sea. For the M. leidyi larvae, the highest amount of food item was Acartia sp. and Lamellibranchia sp. with an average of 44% and 32% and the maximum abundance of food item for juvenile and mature M. leidyi was also Acartia sp. with an average of 67.5% and 66%. The results showed that the main food item for M. leidyi is Acartia sp. of the Copepoda. Hence, M. leidyi feeding has an important effect in declining zooplankton populations.
    Keywords: Biology ; Ecology ; Feeding behaviour ; Marine crustaceans ; Plankton surveys ; Food organisms ; Stomach content ; Food ; Zooplankton ; Natural populations ; Balanus ; Podon polyphemoides ; Mnemiopsis leidyi ; Tintinnopsis ; Metus ; Lamellibranchia ; Acartia ; Brackish ; Gorgan Bay ; Caspian Sea Eurasia ; Caspian Sea ; Iran
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 35-46
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  • 5
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    The density and distribution of plankton in Hevigh River, Guilan Province (2021)
    In:  http://aquaticcommons.org/id/eprint/24728 | 18721 | 2018-08-04 16:32:05 | 24728 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-15
    Description: A Comprehensive hydrobiological and hydrological investigation was conducted on Hevigh River, west of Guilan Province from 2001 to 2002. Totally, 4 Phyla of phytoplanktons including 21 genera were observed. The maximum phytoplankton density belonged to the Phylum Chrysophyta with genera, Nitzchia, Diatoma, Cocconeis, Navicula and Cymbella comprising 95.7% of the phytoplankton population throughout the year. Chlorophyta ranked second with genera Scenedesmus, Cruciginia and Anicistrodesmus, comprising 2.20% of the population during the year. Cyanophyta with Oscillatoria and Euglenophyta with Euglena consisted the remaining few percents of the phytoplankton population. Zooplankton population in Hevigh River was found to be very poor, and mostly belonged to Protozoa and Rotatoria. However, 4 Phyla and 12 genera of zooplanktons were distinguished in the River the highest density of which belonged to Protozoa with genera Amelia, Difflugia, Cyphoderia and Euglypha, comprising 64% of the total population. Rotatoria with genera Keratella, Cephalodella, Lecane and Rotaria, consisted 14% of the zooplankton population during the year. Arthropoda, Nematoda, Tardigrada were very low in numbers.
    Keywords: Ecology ; Hevigh River ; Phytoplanktons ; Zooplanktons ; Guilan Province ; Iran
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 75-86
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  • 6
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    Adaptation and use of amphipoda in fish culture ponds in order to increase fish production (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25201 | 18721 | 2018-09-05 16:03:37 | 25201 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: Use and enrichment of live food resource in fish farms have been interested and highly demanded. Crustacean are one of the important groups. The Pontogammarus maeoticus dominated in southern Caspian Sea shore with a high abundance. This study was designed in order to adaptation and usage of amphipoda in fish culture ponds. The first part have been surveyed the laboratory experiments including of; to increasing and developing of P.maeoticus in 200 litter container, the effects of salinity on growth and survival of amphipods in many aquariums, the culture of common carp with amphipods and growth determination of them. Chemical composition analysis of P.maeoticus and carps fed by amphipods in compare to cultured carps from ordinary ponds. Due to concern about common healthy the heavy metal concentration has been measured in P. maeoticus, carp which were fed by amphipods and the cultured carps in earth ponds. In second phase; the adaptation of two amphipods species, P. maeoticus and Obesogammarus acuminatus was studied in fish ponds where some cages with sandy soft substrate had been provided for amphipoda replacement. Also a small surface of ponds surrounded by net and covered by Azola plant, a habitat suitable for to putting of O. acuminatus. Production of amphipoda had not the successfully results in large tanks. Aquariums with Caspian Sea water had the prosper results where the specimens were breeding and developing properly, even though in some aquarium with freshwater increased the amphipods number. The chemical composition had not significant difference between two kind of cultured carps while the organic component in amphipoda had a high quality. The better quality of cultured carp by amphipod diet have been confirmed by organoleptic test. The results of heavy metal measurement in amphipoda showed a high concentration which some of them were transmitted to cultured carps. Result of amphipoda replacement in cage was not satisfy and the specimens were died after some days. According to hydro-chemical parameters the oxygen poorness and high trophy levels were the affective factor to abolish of specimens in cages. It seems that there are many type of P.maeoticus that can be adapted in different salinities. The molecular differentiation should be investigated to choose the suitable type of this spices for utilization in freshwater fish ponds. In other hand it can be used in fish culture ponds that will be supplied by brackish water.
    Keywords: Aquaculture ; Iran ; Caspian Sea ; Adaptation ; Amphipoda ; Fish ; Culture ; Ponds ; Enrichment ; Pontogammarus maeoticus ; Amphipoda ; Survey ; P.maeoticus ; Common carp ; O. acuminatus ; Oxygen ; Specimens ; Brackish water
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 71
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  • 7
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    Ecological study on the Persian Gulf Martyres Lake, Tehran (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25818 | 18721 | 2018-10-13 10:23:49 | 25818 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: The ecological study of the Persian Gulf Martyres Lake carried out at the 5 stations between 2013 and 2014. This study identified 35 phytoplankton taxa. The diatoms taxa was dominated and their abundance recorded highest (2000 000 cell. L^-1) in the lake. The annual phytoplankton abundance was measured as 2500 000 cell. L^-1 during the study. The total nitrogen and water temperature were the significant a biotic parameters to increase cyanophytes abundance. Furthermore, 37 zooplankton taxa were identified. The Rotatoria abundance was dominated zooplankton. The annual zooplankton abundance was measured as 72 ind.l-1. Based on the CCA, there was no correlation between Rotatoria abundance and a biotic parameters. The study benthos showed Ephemeroptera and Diptera abundance were dominated; artificial bottom and lack of sediment and organic matters were the main reasons in decreasing of the benthos density. The Chitgar lake is the poorest lake in Iran due to low density of plankton and benthos organisms. The estimation of fish production was 123 kg/ha and for the lake was determaind 16 tonne. The finding display, invasive species was the main fish Chitgar lake that would be negative effect and increase eutriphication trend in the lake. Phosphorus parameter was limited parameters and trophy level recorded low due to high N/P ration in the lake. In overall the Chitgar lake situation is in Oligotrophic category with the low trophy level.
    Keywords: Ecology ; Iran ; Persian Gulf ; Chitgar Lake ; Phytoplankton ; Zooplankton ; Benthose ; Trophy ; Abundance ; Nitrogen ; Temperature
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 92
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  • 8
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    Phytoplankton population structure of the Anzali wetland (2010 and 2011) (2021)
    In:  http://aquaticcommons.org/id/eprint/22102 | 18721 | 2018-02-08 03:16:16 | 22102 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-06-26
    Description: Phytoplankton groups are very important producers in the Anzali wetland having a significant role in the quality and need to be constantly studied in term of their sequence and density. This survey was conducted at 6 stations between March 2011 and February 2012. According to the results, 67 different genera (22 Bacillariophyta, 26 Chlorophyta, 9 Cyanobacteria, 5 Cryptophyta, 1 Euglenophyta, 2 Chrysophyta, 1Dinoflgellata and 1 Xanthophyta) were identified. Most observed in Sorkhankol and Karkan stations with the annual average of 24.4±5.6 and 20.4± 5.4 cells/ liter respectively. The Bacillariophyta particularly Cyclotella was dominant in all of the stations, but high abundance of Cyanobacteria in Karkan station from July to mid-October caused the annual average of this phylum to be more than Bacillariophyta. The highest and lowest phytoplankton abundances were observed in September and December, respectively. The number of phytoplankton genera and diversity in this study were less than previous studies.
    Keywords: Biology ; Ecology ; Fisheries ; Phytoplankton ; Diversity ; Abundance ; Anzali Wetland ; Iran
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 105-118
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  • 9
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    Abundance and distribution pattern of plankton in Anzali Lagoon (2021)
    In:  http://aquaticcommons.org/id/eprint/24138 | 18721 | 2018-08-03 08:10:26 | 24138 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-15
    Description: A comprehensive hydrobiological and hydrological investigation conducted in Anzali lagoon from 1997 to 2000. During this study, a total of 5 phylum and 62 genera of phytoplanktons and 10 phylum and 50 genera of zooplankton were identified. The results showed that for phytoplanktons the abundance of Cyanophyta, Chrysophyta, Chlorophyta, Euglenophyta and Pyrrophyta were calculated 61.8%, 29.1%, 8.2% 0.7% and 0.2%, respectively. The most abundance of zooplankton belongs to Rotatoria (60.8%), after that other group of zooplankton had more abundance consist of Copepoda and its nauplii (17.2%), Ciliophora (9.6%) and Rhizopoda (6.6%). Other zooplanktons had very few abundance. According to obtained results, western region of lagoon (Abkenar) is a rich region of planktons in which the most dominant phylum of phytoplanktons was from Cyanophyta with genera of Oscillatoria, Anabaenopsis, Microcystis. The most abundance of zooplanktons were genera of Polyarthra, Brachionus and Keratella and from Arthropoda phylum, the most abundance genus was found Cyclops and its nauplii. The Planktonic study indicated that Anzali lagoon is one of the richest lagoon in Iran with high production and potential water for feeding of fishes and their larva.
    Keywords: Biology ; Ecology ; Phytoplankton ; Zooplankton ; Anzali Lagoon ; Iran
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 87-114
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  • 10
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    The density and distribution of the plankton, in Maco Reservoir Dam (2021)
    In:  http://aquaticcommons.org/id/eprint/24771 | 18721 | 2018-08-05 16:26:26 | 24771 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-15
    Description: A comprehensive hydrobiological and hydrological investigation conducted in Maco Reservoir dam during 1997-1998.The result showed that the maximum density of Phytoplankton belongs to the Phylum of Chrysophyta with species of Cyclotella menenghiniana, Synedra ulna and Diatoma vulgare. This Phylum observed mostly in summer and showed the most; frequency (%76) population during year. After Chrysophyta there was Chlorophyta phylum with species Scenedesmus bijuga and S. bijugatus with %19 frequency during year. Also, there were other phytoplankton phyla, namely: Cyanophyta with Oscillatoria limosa, Euglenophyta with Euglena sp. and Pyrrophyta with Ceratium hirdinella that had a few percent of population in the year. The highest density of Zooplankton belongs to the phylum of Rotatoria with species of Synchaeta oblonga, Polyarthera vulgaris and P. dolichoptera. This Phylum was observed mostly during autumn and had %74 frequency during year. The second phylum belongs to Arthropoda, that was included two orders consist of: Copepoda (%16 population) with speices of Cyclops vicinus and C.viridis and their naupli, order Cladocera (%7 population) with speice of Daphnia longespina. They were recognized as the most important zooplankton in Maco reservoir dam. The planktonic studies and observations show that there is a well enough potential of food for feeding of fishes inhabited in this dam.
    Keywords: Ecology ; Maco Reservoir dam ; Phytoplankton ; Zooplankton ; Iran
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 29-46
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