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  • 1
    Publication Date: 2018-07-01
    Description: Creating a database of affiliated laboratories of the institute is organized with the aim of integrating information related to laboratories of research centers and their subsidiaries. The main objective of conducting this project in this stage is to upgrade it, establish and run one software system based on up-to-date networking technology. For this purpose organizing the centers database, a periodic report on various aspects can be done which help for implementing appropriate monitoring and management. Among the sectors that are designed and upgraded for this system include: Portal, information bank, advanced possibilities for inputting data, searching and reporting on laboratory. The advantages of this precise and updated reports can be collected easily from the general information of research institutes and centers, reports of the number of lab experts with different educational levels in affiliated centers, awareness of numbers and status of the chemical materials in the laboratories of each center, and the significant and important point is about economizing equipment, chemical materials and on time calibration.
    Keywords: Information Management
    Repository Name: Aquatic Commons
    Type: Article , PeerReviewed
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  • 2
    Publication Date: 2018-06-17
    Description: The two species, Luciobarbus barbulus (Heckel, 1847) and Luciobarbus pectoralis (Heckel, 1843) are similar to each other and some researchers get confused and mistake one for the other. During a one year seasonal sampling, 79 specimens were collected from the main rivers of west and southwest of Iran in the Tigris River basin using electrofishing as the main method for sampling. Samples were fixed in 10% formalin and transferred to the laboratory, Then 24 morphometric and meristic parameters as well as 11 ratios of the major parameters between the two species were studied. According to the results of this study in addition to similarities there are ten differences between them, with the most important ones being the shape of the head and lips, number of gill rakers and number of pectoral fin branched rays.
    Keywords: Biology ; Fisheries
    Repository Name: Aquatic Commons
    Type: Article , PeerReviewed
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  • 3
    Publication Date: 2018-10-05
    Description: In this survey the Physical and Chemical factors, heavy metals, agricultural pesticides and microbial contaminations were studied in mohammadiye channel extending Eslamshahr, Robat karim and Shahriar cities of Tehran Province during the 2011.Specimens were obtained from 5 different stations .The measured factors were temperature, DO, Cl, HCO_3, COD, BOD, CO_2, Mg,... The analysis of Physical and Chemical factors of Mohammadiye channel water showed that except water temperature, all factors in comparison to the standards were at the standard level, So they are suitable for aquaculture. The result of measurements of heavy metals including lead, copper, Iron, Cadmium, Zinc and mercury in spring, summer and fall in comparison to existing standards showed that unfortunately except copper the amount of other heavy metals are higher than standard levels in the most of stations , Lead amounts at stations 2,3,4 and 5 . zinc at stations 1 and 5 , Iron at stations 1,3 and 5 , cadmium and mercury in all stations were higher than the standards for fish culture. The measured amounts of organophosphate and organochlorine pesticides and result of microbial contaminations culture were less than standard levels. Due to mean of water temperature that is high from middle of Spring to the end of summer, It is suitable for culture of warmwater fishes and because of low water temperature in the station No1 It is recommended for culture of coldwater fishes by using of 50-70gr of young fishes .
    Keywords: Aquaculture ; Ecology
    Repository Name: Aquatic Commons
    Type: Monograph or Serial Issue , NonPeerReviewed
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  • 4
    Publication Date: 2018-01-08
    Description: The swim bladder status of false trevally (Lactarius Lactarius) was studied from November 2007 to October 2008 in coastal waters of the Oman Sea. A number of 702 swim bladders of false trevally specimens were collected randomly from catch composition of gillnets and bottom trawler. False trevally has an unusual swim bladder, as the first and the second spines of its anal fin are joined that creates a single bone, which is called anchorage bone, and passes from the middle of the swim bladder and 2 lobes of the gonad and connects to the 10th vertebra of the spinal column. Another ending of this bone is wide and reaches anal fin base. This bone is like an anchorage for swim bladder of false trevally and it functions as a center of gravity of the fish in anal fin base. It firms the exterior part of the fish body, so the fish swims through rough waters easily.
    Keywords: Biology ; Fisheries
    Repository Name: Aquatic Commons
    Type: Article , PeerReviewed
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  • 5
    Publication Date: 2018-01-18
    Description: In this survey the Physical and Chemical factors were studied in mohammadiye channel extending Eslamshahr, Robat karim and Shahriar cities of Tehran Province during the 2011 in agriculture period (May, June, July, August, September, October) Sampling were done from 5 different stations. The measured factors were temperature,DO, Cl,HCO3,COD,BOD,CO2,Mg,… The analysis of Physical and Chemical factors of Mohammadiye channel water showed that except water temperature, all factors in comparison to the standards were at the standard level, So they are suitable for aquaculture. Due to mean of water temperature that is high from middle of Spring to the end of summer, It is suitable for culture of warmwater fishes and because of low water temperature in the station No1 It is recommended for culture of coldwater fishes by using of 50-70gr of young fishes.
    Keywords: Aquaculture ; Ecology ; Limnology
    Repository Name: Aquatic Commons
    Type: Article , PeerReviewed
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  • 6
    Publication Date: 2018-04-14
    Description: Fish egg poisoning is a public health hazard although usually the incident rate, mortality and fish species involved are not well reported (Halstead,1970). Four species of Cyprinidae in Iran have been suggested as ichthyotoxic by Coad (1979) .namely Abramis brama. Cyprinus carpio .Schizothorax zarudnyi and Tinca tinca and it was thought that other species may be discovered subsequently.Najafpour and Coad (2002) reported ichthyotoxin in the cyprinid Barbus luteus from Iran ,and the study records another species. The Cyprinid fish Capoeta capoeta known as Siah mahi or gara balig in Iran.
    Keywords: Biology ; Fisheries ; Health
    Repository Name: Aquatic Commons
    Type: Article , PeerReviewed
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  • 7
    Publication Date: 2018-05-18
    Description: During a survey of Gahar Lake and Gahar River from 2008 to 2009 some specimen obtained by seasonal sampling in 6 stations, 3 stations in the lake and 3 stations in the river. Three different methods were used for sampling, gill net and hook in the lake and electrofishing in the river. Due to the results 3 species from 2 families in Gahar Lake and 12 species from 3 families in Gahar River were identified. Most of the fish species belonged to Cyprinidae and Salmonidae families. Distribution and abundance of species were recognized. Oncorhynchus mykiss in Gahar Lake and Capoeta damascina in Gahar River had the most abundance.
    Keywords: Biology ; Ecology
    Repository Name: Aquatic Commons
    Type: Article , PeerReviewed
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  • 8
    Publication Date: 2018-05-31
    Description: This study was conducted in the Chitgar Lake in 2014. Chitgar Lake, 130 hectares in area is an artificial lake located in the north-west of Tehran City, Iran. For the first time the seasonal sampling of fish was done by three fishing methods gill net, cast net and beach seine, and a random sample of 3160 fish was collected. Some morphometric and meristic factors of samples were studied in the laboratory, and the distribution, abundance and species composition were determined. According to the results obtained, 95% of fish population was comprised of aggressive species such as; Hemiculter leucisculus, Pseudoras boraparva and Alburnus hohenackeri. There are 14 fish species in the lake, 9 species of which belong to the Cyprinidae family, 2 species including Capoeta buhsei and Capoeta capoeta are the only native species.
    Keywords: Biology ; Ecology
    Repository Name: Aquatic Commons
    Type: Article , PeerReviewed
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  • 9
    Publication Date: 2018-07-25
    Description: In order to determine the reproduction period, the peak time of spawning, length of maturity and mesh standard size for False Trevally (Lactarius lactarius), we conducted a study from November 2007 to October 2008 in coastal waters of the Oman Sea. A total of 702 False Trevally specimens were collected randomly from the catch composition of gillnets and Ferdows-3 stem trawler. Mean total length and total weight were estimated at 22.7 plus or minus 2.13cm and 142.2 plus or minus 41.64g for females and 20.4c 1.89cm and 103.14c 29.07g for males respectively. Male to female sex ratio was 0.37:1 and females were more abundant than males in all months except June and August. Males had smaller sizes than females and the females outnumbered the mails up to the total length 25.5cm. The maximum of GS delta was estimated at 3.69 for females in June and 0.89 for males in July. The trend of GS delta and the frequency of maturity stages showed that reproduction period was from February to September with a spawning peak in August. Absolute fecundity was calculated at 102032 ova and relative fecundity was estimated at 4491.9 ova and 780.7 ova to total length and total weight respectively. Lm sub(50%) (length of maturity) and standard mesh size was calculated at 24.4cm and 3.9cm, respectively.
    Keywords: Biology
    Repository Name: Aquatic Commons
    Type: Article , PeerReviewed
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  • 10
    Publication Date: 2018-10-05
    Description: This survey carried out from 2012 to 2013 to study of suitable site selection for carp and trout fish species for responsible aquaculture possibility by data collection and literature study. During the survey ecological factors including physical and chemical factors, geological factors including topography and type of soil, biological factors including selection of species and control of invader animals, climatic factors, geographical factors and pollutant including heavy metals, agricultural pesticides Surfactants and crude oils were recognized. Also in comparing with standard levels suitable rate of each important factor in aquaculture were studied.
    Keywords: Aquaculture
    Repository Name: Aquatic Commons
    Type: Monograph or Serial Issue , NonPeerReviewed
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