List of Articles Osmoregulation

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  1 - Effects of different levels of salinity on number and size of chloride cells in gill of Benny fingerling (Barbussharpeyi)
  Koohkan, O. .
  This study was accomplished to evaluate osmotic regulation ability of Benny fish by mitochondria-rich cells and study of the effect of salinity in different levels on their gill. For this purpose, 120 fish transferred into four aquariums containing 4, 8, 10 and 12 g/l s More

  This study was accomplished to evaluate osmotic regulation ability of Benny fish by mitochondria-rich cells and study of the effect of salinity in different levels on their gill. For this purpose, 120 fish transferred into four aquariums containing 4, 8, 10 and 12 g/l salinity, after a week adaptation. Sampling was carried out after 96hrs and tissues prepared and fixed in 10% formalin for 48hrs. After tissue processing, 5µm sections were prepared and stained with haematoxylin and eosin and studied by light microscope. The observations showed most presence of chloride cells in basement of filament and lower in lamellae of Barbussharpeyi. Chloride cells and mucosal cells increased in size and number with salt concentrations increasing and showed significant different in some treatments (P<0.05). Mucosal cell number in12 g/l concentration showed significant increasing compared to both control group and 4 g/l concentration, but no significant difference with other treatments. In chloride cells, only 12 g/l treatment showed a significant difference (p<0/05) compared to control group in number and size. Manuscript profile
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  2 - Effect Of Starvation and Compensatory Growthon Carcass Quality in Cyprinus Carpio(Linnaeus, 1758)
  خدیجه ابراهیمی مجید محمدنژاد شموشکی روح الله جوادیان مجتبی کشاورز دیوکلایی علی کاربخش راوری
  Inroduction and ObjectiveUsually the life duration of the fish species are faced with the problem of starvation naturally. Usually the case in winter, when during long migration to spawning and feeding on the living environment, decreased occur because of different reas More

  Inroduction and ObjectiveUsually the life duration of the fish species are faced with the problem of starvation naturally. Usually the case in winter, when during long migration to spawning and feeding on the living environment, decreased occur because of different reasons and cause severe loss of body energy reserves in fish.Material and Methods: Experiments were done in five groups and three replications: Control: 5 weeks full feeding Group 1: One week starvation+ One week feeding, group 2: Two weeks starvation+ One week feeding, group 3: Three weeks starvation+ One week feeding, group 4: Four weeks starvation+ One week feeding. The amount of dissolved oxygen was fixed on 5.5 - 6 ppm, the temperature 24-28 0C and pH 7.5 to 8 were so controlled through the experiment. Carps fry were fed during the experimental period in control and compensatory growth times with commercial food (containing: 8.7 % moisture, 11.2 % ash, 32 % protein and 10.5 % fat).Results: The results of carcass qualityshowed thatthere are significant difference at protein, fat, ash and fiber in different groups (PCyprinus carpio fry. Manuscript profile
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  3 - AppearanceTrends Of Gilland SkinIonocytes InThe Early Larval Development Of ZanderSander lucioperca
  محدثه احمد نژاد شهربانو عریان محمود بهمنی محمد صیاد بورانی
  Inroduction and ObjectiveZander, Sander lucioperca, is an economical fish in the Caspian Sea. Due to the decline of stock in recent years, fry with different weights are released into the rivers by Iran Fisheries Organization. Studyonosmoregulatory function especially i More

  Inroduction and ObjectiveZander, Sander lucioperca, is an economical fish in the Caspian Sea. Due to the decline of stock in recent years, fry with different weights are released into the rivers by Iran Fisheries Organization. Studyonosmoregulatory function especially in developmental stages of larvae is essentialtorefinethe process offish into thefreshwaterorsaltwaterenvironments.Material and Methods: Development of gill osmoregulatory Function, distribution and density of skin ionocytes were examined by histology with E and H staining and immunolocalization of Na, K-ATPase, in Caspian Sea zander (Sander lucioperca) larvae from day 1 to day 11 after hatching. Results: Development of filaments was started from 4th days but immunopositive ionocytes were not observed in them. It was found weak immunofluorescence in filaments on the 8th days. The first buds of lamella were appeared with very poor immunofluorescence on the 11th days. Predominant distribution of the skin ionocytes was limited to the yolk sac membrane to 8 days after hatching and then tended to ventral region of posterior end of body. Skin ionocytes abundance and surface occupied by them increased from the first day to 11 days after hatching.ConclusionIn Caspian Sea zander larvae, development of osmoregulatory function of the gill had not been complete up to the 11th days and the skin ionocytes were responsible for osmoregulation until this age. Manuscript profile
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  4 - Effect of changes in environmental salinity on blood parameters and body composition in Yellowfin Seabream (Acanthopagrus latus)
  امیرپرویز سلاطی Reza Farshadian Saeed KeyvanShokooh Hossein Pasha-Zanoosi
  In this study, the effects of changes in environmental salinity on some biochemical parameters and body composition in yellowfin seabream (Acanthopagrus latus) were assayed. Fish adapted to salinity of 20 ppt, then suddenly introduced in experimental salinities includin More

  In this study, the effects of changes in environmental salinity on some biochemical parameters and body composition in yellowfin seabream (Acanthopagrus latus) were assayed. Fish adapted to salinity of 20 ppt, then suddenly introduced in experimental salinities including 5, 12 and 34 ppt. Each treatment was done in three replicates. In each replicate, 12 fishes with an average initial weight of 100± 10 grams per 300-liter tanks were placed. alues increased in group 12 and 34 ppt (P<0.05). A higher level of triglyceride and lower levels of high density lipoprotein were recorded in 34 ppt compared to other treatments (P<0.05). The proximate composition of body was affected by salinity as moisture was lower in 34 ppt in compare to other groups (P<0.05). In this study, A. latus survived without mortality in experimental salinities, but changes induced for osmoregulation in 5 ppt requires high energy consumption, which reduces the energy available to the fish. Manuscript profile
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  5 - Response of Pistachio (Pistacia vera L.) Seedling Rootstocks to Salicylic Acid Foliar Application under Water Stress
  Mostafa Ghasemi Kazem Arzani Abbas Yadollahi Hossein Hokmabadi Majid Agha-Alikhani
  10.22034/jon.2021.1935934.1120
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  6 - Physio-Biochemical Changes of Some Pistachio Rootstocks in Response to Drought and Recovery Periods
  Mohammad Hosein Shamshiri Mahboubeh Hoseini Mohammad Reza Dehghani
  10.22034/jon.2023.1979552.1214
  The reduction of water resources in pistachio production areas of Iran has led to an increase in the frequency of irrigation, so the pistachio trees are continuously exposed to periods of drought and recovery after irrigation during the growing season. Choosing rootstoc More

  The reduction of water resources in pistachio production areas of Iran has led to an increase in the frequency of irrigation, so the pistachio trees are continuously exposed to periods of drought and recovery after irrigation during the growing season. Choosing rootstocks that have the highest resistance to drought stress and the highest recovery speed can be considered as one of the basic strategies for facing such conditions. This experiment was carried out as factorial and in the form of a completely randomized design with three replications. The experimental factors were the type of rootstock in five levels and the sampling stage in three levels for destructive biochemical parameters and six levels for non-destructive chlorophyll fluoresce parameters. Drought stress was achieved by withholding irrigation for 15 days, and in the recovery phase, the pistachio seedlings were irrigated daily up to field capacity for 10 days. At the end of the experiment, shoot and root dry weights were measured. Evaluation of pistachio seedlings biomass showed that the periods of drought and recovery did not affect the dry weight of shoot and root and rootstock type was the only influencing factor. The highest amount of shoot and root dry weight was observed in lentisk (Pistacia lentiscus) and Bane-Baghi respectively, and the lowest amount was recorded in Bane and Sarakhs. Chlorophyll fluorescence indices were completely sensitive to drought stress and recovery. Dry period caused the measured biochemical parameters known as osmolytes to increase and the changes in these parameters were different in different rootstocks. Manuscript profile