Recent Submissions

  • A survey on plankto an investigation on ecology of mudskippers in Hormuzgan coastal areas communities in Bandar Abbas coastal area

    Taherizadeh, Mohammad Reza; Dehghani, R.; Salarpouri, A.; Khodadadi Joker, K.; Mortazavi, M.S.; Akbarzadeh, G.H.; Pahpouri, A.; Seraji, F.; Ejlali Khanghah, K.; Behzadi, S. (Iranian Fisheries Science Research Institute, 2018)
    The most important habitats of mudskippers are muddy areas in tidal zone of tropical mangrove forests. Mudskippers are related to Oxudercinae subfamily of Gobiid fishes. Three most distributed species of Hormozgan mudskippers were Periophthalmus waltoni, Boleophthalmus dussumieri and Scartelaos tenuis. These fishes can be considered as euryhaline and eurythermal aquatic species, because they can tolerate a wide range of salinity and temperature. A research was done since september 2008 to september 2009 in two important mangrove regions of Hormuzgan (Tyab and Khamir) to determine some ecological characteristics of inhabited mudskipper species. Results showed that nitrate levels are significantly different between tidal lines and seasons (P<0.05). Maximum nitrite concentrations were recorded 53.2 and 92.5 µg/l in Khamir and Tyab respectively. The annual correlation matrix showed that a positive correlation between phosphate concentration and nitrite and silicate (P<0.05). Silicate concentration was very high, because of too low density of diatoms and radiolarians. Some species of diatoms, dinoflagellates, cyanobacteria and larvae of crustacea and echinoderms were observed with different density and diversity. Sediment composition of the studied areas were categorized in three classes (clay, sand and clay - sand). Polychaetes formed dominant group of benthic fauna in Tyab and Khamir areas. High density of capitellid worms was possibly related to some environmntal stress caused by activity of fishing and cargo vessels. It was not observed significant difference between fishes length in two areas (P<0.05); Mean lengths of P. waltoni, B. dussumieri and S. tenuis were calculated 9.85, 14.7 and 11.5 cm respectively. Spawning period of each three species in both areas were obtained from late winter to late spring based on gonadosomatic index values. Male to female sex ratio of P. waltoni, B. dussumieri and S. tenuis were calculated 1:0.45, 1:0.41and 1:0.74 respectively. Absolute fecundity of P. waltoni, B. dussumieri and S. tenuis were estimated 3558 ± 2202, 3952 ± 1030 and 6742 ± 1939 respectively. P. waltoni feeds mainly on fiddler crab, S. tenuis uses crustaceans and gastropods and B. dussumieri has a vegetarian diet.
  • The study of some limnological study of the Kan river in the catchment area of the Persian Gulf Martyrs Lake (Chitgar), Tehran trophic index in Anzali lagoon

    Bagheri, Siamak; Zahmatkesh, Y.; Ghane, A.; Sedaghatkish, A.; Nikpor, M.; Yosefzad, E.; Mohsenpor, H.; Rastin, R.; Shondasht, J.; Moradi, M.; et al. (Iranian Fisheries Science Research Institute, 2017)
    This study focused on identification phytoplankton, zooplankton, benthos, fishes and relationship between biotic and abiotic parameters at three stations in the Kan river during 2014. This study identified 19 phytoplankton taxa. The findings showed, the diatoms abundance were dominated in the river. The chlorophytes abundance were recorded the lowest abundance in this study. The nutrients and water temperature were the significant abiotic parameters to increase cyanophytes and chlorophytes abundance in the Kan river. This study identified 26 zooplankton taxa. The Rotatoria and Protozoa abundance were dominated in the Kan river. Based on CCA, there was no correlation between abundance zooplankton and abiotic parameters. The biodiversity index of plankton was between 1.8 and 2 and the lake situation is located in the mesotrophic category. The study of the Kan river fishes showed, only one endemic fish species Capoeta bohsei. The length (between 38 and 270 mm, average 144±86 mm) and weight (between 1.1 and 356 g, average 108.8±146.7 g) of the C. bohsei were varied during the study period. The 19 benthos taxa were identified. The Ephemeroptera was most abundant in the benthos groups. The classification of river based on biology indicator and environmental parameters confimed that water quality is located in the moderate category.
  • The study of establishment of rainbow trout culture and hatchery farms on Zayanderood’s River region in Caharmahal and Bakhtiyari Province

    Danesh Khosh Asl, Ali; Fallhi, M.; Khodaparast, S.H.; Mirzajani, A.; Ghane, A.; Babaee, H.; Nezam Abadi, H.; Daghigh Rouhi, J.; Mehdizade, Gh.; Abbasi, K.; et al. (Iranian Fisheries Science Research Institute, 2016)
    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 - 10oC where 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 1 L/S water need for production in semi circular closed system were estimated to be 5202 metric tons.
  • The سtudy on health situation of shrimp Litopenaus vannamei broodstoock production in earthen pond and comparing with fiberglass or cement tanks

    Afsharnasab, M.; Ghaednia, B.; Dashtyannasab, A.; Mirbakhsh, M.; Kakoolaki, S.; Mehrabi, M.R.; Yeganeh, V.; Nazari, A. (Iranian Fisheries Science Research Institute, 2015)
    The investigation of health and diseas situation of shrimp broodstook (Litopenaeus vannamei) in Boushehr province in earthen pond and cancreat and fiberglas was carried out from May 2014 until July 2014 with collected 100 samples brood stook from earthen pond and 100 samples from earth and fiberglas thank.The clinical sign of samples documented in take history form and then the samples transport to Iran Shrimp Research Instituet in Bousheher. The bacterial and fungal studied was carried out with hemolymp, hepatopacreas and gill tissue and then the shrimp preserved in Davidson Fixative for histopathology. A part of uropoda also preserved in ethyl alcholo for PCR study and detecting viruses. The result showed 10 bacteria consist V.harveyii, V.parahaemolyticus, V.anguillarum, V.vulnificus, V.mimicus, V.damsela,V.nereis, plesiomonas shigelloides V.alginolyticus V.proteolyticus, in earthen pond and 5 bacteria consit ,V.alginolyticus V.proteolyticus ، V.parahaemolyticus، V. damsela ،V.mimicus were identified in fiberglas thank. In this study 10 fungi consist Penecilium, Asp. Niger, Asp. Flavious, Asp. fomigatus, Acromonium, Ulocladium, Mucor, Cladosporium, Alternaria, Rhizopus, and 5 of them were identified in both broodstock from earthen pond and fiberglas thank. However 6 parasite consist of zoothamnium, vorticella, Acneta, Ephelota, Epistylis, Epistylis and Apastomom identified in earthen pond and three of them were identified in fiberglas thank. In histoplatholgy some tissue showed the effect of vibrio infecting in different organs as well in gill and midgut and the PCR examined were negative for all viruses. Regarding the produce healthy broodstock we need excuted the High Health procdure.
  • Determination of dietary protein and energy level s and optimum lipid to carbohydrate ratio for Gattan (barbus xanthopterus) fingerlings

    Nikpay, Mansoor; Eskandari, Gh.; Bosak Kahkesh, F.; Amiri, F.; Edizadeh, M.R. (Iranian Fisheries Science Research Institute, 2012)
    This study was done is three phase ,to required suitable level of protein and energy and optimum carbohydrate to lipid ratio (B.xanthopterus) fingerling . Phase one: Determine of dietary protein and energy l eve in tanks (300 liters) treatment with triplicate e in different level of protein (25 ,30 ,35 percentage) and three level of energy (250 ,300 ,350 kcal/gr) the result showed that the best (GSR and WG) belongs to diet with protein % 35 and 300 kcal/gr. this experiment showed with increased of protein , SGR and WG increased and the one special level of protein with increased of energy level ,first SGR and WG increased (the most of SGR belonged 300 kcal/gr) ,and SGR decreased. Phase 2 : Determine optimum lipid to carbohydrate ratio in tanks (300 liters) In this phase with suitable level of protein and energy( protein %35 and 300kcal/gr) determined 5 ratio of carbohydrate and lipid (0.8, 2.8, 4.86, 8.8 ) in this phase best diet determined with 4/8 ratio , and 6/8 , 2/8 ratios were after that carbohydrate and lipid ratio. Phase 3: Determine optimum lipid to carbohydrate ratio in pond: In this phase, the result of thirty phase were like second phase. we determined that the best SGR and WG and WG % belonged to 4/8 carbohydrate and lipid ratio and 6/8 2/8 ratio were after 4/8 carbohydrate and lipid rate.
  • Survey of diversity, distribution, abundance and biomass of macrobenthic fauna in the southern Caspian Sea

    Hashemian, Abdollah; Soleimanroodi, A.; Salarvand, Gh.; Elyasi, F.; Nazaran, M.; Dashti, A.; Norani, A.; Eslami, F.; Gholami, M.; Kardar rostami, M.; et al. (Iranian Fisheries Science Research Institute, 2012)
    This project were investigated seasonally from march 2008 up to one year, in southern Caspian Sea iranian coast /Sampling was carried out at 8 stations of between 5 and 100 m depth and taken in triple with a 0/1m² van Veen grab/Total twenty four species and one family and one order were identified, presenting low dominance and frequency/ polychaeties 56%,oligochaetes 39% bivalves <1% amphipodes1% Cumacea and diptera and cirrepedia %1 of whole macrobenthos compositions/ Polychaetes and oligochaeta dominated, representing 95% of the whole fauna/Average of species were 11/8 species per grab/max 21 species / grab were found in Tonkabon stations at 100 meter depths and minmum 4 species/grab in 20 m in Bandar anzali /Maxmiun density were 4783 n/m^2 in spring and minmum 3177 n/m^2 in winter/Highest density were recorded in Amirabad stations and lowest in nooshar/ Maximum density showed in east, mimun in middle area of sea The biomass of benthos adventages in west/Average biomass of whole area were 6/932 gr/m^2/Mean total organic matter were 3/11±1/1 and silt- clay 62/92±6/12precent and Mean dissolve oxygen and salinity were 8/3±0/15 mg/l and salinity 12/2 ±0/4 ppm and water tempreture were 14/9±0/18ْC/ Mean grain size, fine sand, very fine sand, silt and clay contents were among the main factors related to the patterns of macrofaunal distribution, density and diversity and dominance of trophic groups.
  • A survey on effects of shrimp aquaculture on the coastal waters of Bushehr (Helleh region)

    Mirbakhsh, Maryam; Ghaednia, Babak; Najdian, Aida; Alboosharif, Ali; Esmaeili, Fariba; Soltani, Mehdi (Iranian Fisheries Science Research Institute, 2008)
    This survey was designed in the Helleh and Delvar regions, to understand effects of aquaculture industry on coastal waters of Bushehr, in 2003. In Delvar region, five stations were selected comprise; effluent canals of Delvar 18 and 14, sea (south and north of site), influent water (Piyazi bay). In Helleh region, two stations; effluent canal and Ramleh bay were selected. Sediment and water samples were collected from effluent canal, influent canal and sea during the 9 month period (before until after culture season). The variations of selected water quality parameters were controlled monthly. Results show that, the maximum amount of ammonium in Helleh region was 0.33 mg/lit and in regions of Delvar 18 and 14 were 0.19, 0.20 mg/lit. However the maximum amounts of phosphate in Helleh region was 0.26 mg/lit and in regions of Delvar 18 and 14 were 0.24, 0.23 mg/lit. Correlation coefficients assess between phosphate concentration of effluent canal and sea station (gate of Ramleh) in Helleh region was r=0.91 (α=0.01). Also correlation coefficients
  • Stock assessment of bonyfishes in the Iranian coastal water of the Caspian Sea (2004-2005)

    Abdolmalaki, Shahram; Ghaninezhad, D.; Saiyad Boorani, M.; Poorgholami Moghaddam, A.; Moradkhah, S.; Bandani, G.A.; Daryanabard, R.; Khedmati, K.; Rastin, R.; Taleshian, H.; et al. (Iranian Fisheries Science Research Institute, 2007)
    For gathering of data on biometry and catch statistics, 5 mobile working group in the regions of Anzali, Kiashahr , Noshahr , Babolsar and Torkmen were involved from the start (2004.10.23) to the end of fishing season (2005.04.10). Gathered data were entered to the computer based on species. For data analysis different methods were undertaken such as Bertallanfy equation for growth parameter Beverton and Holt for total mortality rates, pauly's imperical model for natural mortality rate and cohort Analysis for biomass estimation. Total catch with taking into account of poaching, was estimated 15140 tons reported by scientific committee of catch and fishing harbor relief of Iranian Fishery Company. The total recorded catch of beach seine cooperatives was 10644 tons that comprise 70.2% of the total catch. Total catch of Caspian Kutum was estimated 6612 tons that had 1856 tons (22%) decrease with comparison of the last year. Biomass of Caspian kutum in Iranian coastal Water of the Caspian Sea in 2003-2004 estimated about 20400 tons. The total catch of golden gray mullet was estimated 4425.6 tons that constitute 29.2% of total catch of bony fishes. Biomass of this species was estimated 12200 tons and based on this amount of biomass, Maximum Sustainable Yield (MSY) was calculated as 3577 tons. Long nose mullet comprised only 1.4% of the mullet catch. The catch of common carp in 2004-2005 fishing season continued its increasing trend and caught in amount of 3087 tons by beach seine cooperatives that had 2.2 fold increase in comparison of previous fishing season. Most of the catch occurred in Golestan province and was immature and undersize and the length frequency modes showed moving towards bigger size and older age groups in comparison of previous fishing season. The catch of pick perch in 2003-2004 decreased with comparison of the last year and estimated about 22.5 tons. Most of the catch of pick perch was immature and undersize. Approximately all of the catch is due to releasing of fingerling of this species by Fishery Company especially in Guilan province. Total catch of bream was estimated 27.4 tons and most of which was immature and undersize. Population of asp is critically endangered and the catch of this species is very low (500 kg). Restocking of this species must be considered by Iranian fishing company.
  • Survey of production per area of Fenneropenaeus (Penaeus) merguiensis and F. indicus in Hormozgan province

    Tazikeh, Esmaeil; Fourooghi-e-Fard, H.; Gharavi, B.; Karimi, H. (Iranian Fisheries Science Research Institute, 2007)
    This project was conducted to survey production per hectare and other growth index of fenneropenaeus merguinsis and F. indicus in zar abzy fram in earthen ponds of Tiab area Hormozgan province. In this research for obtain aims used with two treatment and 3 replication. Postlarvaes were stocked at density 20 ind/m^2. Shrimp were fed by imported pellet on the basis of standard feeding table. In order to obtain the growth rate and calculation of daily feeding shrimp become biometry twice a month. Some of the physico chemical factor such and pH, dissolved oxygen and salinity were measured twice a month too. The results showed that mean weight of fenneropenaeus merguiensis were about 16.76 gr with mean daily growth 0.013 gr/day and for F. indicus obtain about 11.44 gr with mean daily growth 0.09 gr / day too. The results showed that mean F.C.R and survival rate in treatment 1 and 2 obtain 4.1 and 10 percent 1.7 and 64 percent respectively. The results showed that propagation of F.merguiensis is feasible and it can a culture species if suitable food is available.
  • Investigating the effect of various trap (gargoor) mesh size on the fish catch composition and abundance in Bushehr Province

    Shabani, Mohammad Javad; Kamrani, E.; Yahyavi, M. (Iranian Fisheries Science Research Institute, 2008)
    In this study was conducted from February and March 2007 to June and July 2007. ...
  • Identification taura syndrome virus by polymerase chain reaction and histopathology in Litopenaeuse vannamei

    Arefzadeh, Seyed Abbas; Afsharnasab, M.; Dashtiannasab, A.; Mohammadi, Gh.H. (Iranian Fisheries Science Research Institute, 2008)
    During 2006 to 2007 Litopenaeus vannamei was dominant cultured species in Bousher and Khouzestan .....
  • Studying some biological aspects of Acanthopagrus latus in Khore Mosa Creecks

    Halalat, Seyed Saleh; Savari, A.; Safahieh, A.R. (Iranian Fisheries Science Research Institute, 2000)
    In order to study some biological aspects of Acanthopagrus latus Persian Gulf ....
  • Broodstock from cultured Penaeus indicus for mass production of larvae

    Azhdari, Heshmatollah; Emadi, H. (Iranian Fisheries Science Research Institute, 2000)
    In order to produce broodstock from cultued shrimps , two groups of 1247 and 3781 ....
  • Studies on primary production of Mahshahr creeks

    Khalfe Nilsaz, Mansoor; Koochnin, P.; Nabavi, S.M.B. (Iranian Fisheries Science Research Institute, 1989)
    The study of primary production in Mahshar area creeks.....
  • Effect of brood size on reproduction indices and growth in larvae to stage fingerling of Shibot (Barbus grypus)

    Bosak Kahkesh, Foroud; Yavari, V.; Eskandari, Gh.R.; Mohammadi, Gh.H. (Iranian Fisheries Science Research Institute, 2008)
    This study was carried out to determine the effect of size of Barbus grypus broodstocks on reproductive ...
  • Estimating growth parameters and catch status of Tenualosa ilisha in Khouzestan

    Roomiani, Laleh; Khodadadi, M.; Mohammadi, Gh.H. (Iranian Fisheries Science Research Institute, 2007)
    Hilsa shad (Tenualosa ilisha) locally known as Soboor is a valuable and shared fish stock in the Northern Persian Gulf ......
  • Study of consumed water quality and output effluents of active shrimp culture farm at Choebdeh zone in Abadan

    Varshovi, Shohreh; Yavari, V.; Nabavi, M.B.; Rasekh, A.R. (Iranian Fisheries Science Research Institute, 2002)
    By growing the population fishing and use water resources were developed and cause impacts on natural resources. ...
  • Production and preservation proceeding of rotifer resting eggs for aquaculture

    Sheikh, Ghafoor; Azari Takami, Gh.; Babaie, Gh.R. (Iranian Fisheries Science Research Institute, 1997)
    The maine pupose of this research has been prepared and produced of Rotifers .....
  • Effects of handling, crowding and anesthesia stress on some hormonal, biochemical and hematological factors of young reared beluga (Huso huso)

    Bavarsad, M.; Bahmani, M.; Peyghan, R.; Mohseni, M. (Iranian Fisheries Science Research Institute, 2008)
    Fish are easily stressed by handling, crowding and transport and stress can result in immuno-suppression, physical injury or even death. ....

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