@article{ author = {Billard, R.}, title = {Biology and control of reproduction of sturgeons in fish farm}, abstract ={Over the last century the reproduction of sturgeon has been intensively studied par Russian scientists who established a technology for the ranching of alevins which included artificial fertilization of gametes taken from wild broodfish and larvae rearing. More recently, since 1970, major contributions originated from teams in the USA, the EU, Japan and Iran. A rather good knowledge of the reproductive physiology of sturgeon is now available: gametogenesis, reproductive cycle, ovulation, spermiation and fertilization. The complete life cycle was obtained in captive conditions allowing the production of juveniles and caviar.}, Keywords = {Sturgeon, Reproduction, Puberty, Aquaculture }, volume = {2}, Number = {2}, pages = {1-20}, publisher = {Iranian Fisheries Research Organization}, url = {http://jifro.ir/article-1-3177-en.html}, eprint = {http://jifro.ir/article-1-3177-en.pdf}, journal = {Iranian Journal of Fisheries Sciences}, issn = {1562-2916}, eissn = {}, year = {2000} } @article{ author = {HosseinzadehSahafi, H.}, title = {Identification of marine ornamental fishes in northern part of the Persian Gulf, Iran}, abstract ={In the past decade, the investment in fisheries development has grown remarkably in the Persian Gulf region. A 1800 km of northern coastline of the Persian Gulf, the Oman Sea and more than 14 islands belong to Iran have provided great possibilities of economic activities. In-shore marine islands such as Kish, Farour, Hendurabi, Tonb made a good opportunity for fishing and harvesting of ornamental fishes living on coral reefs. The Kish island have a plenty of coral reefs in around. The study was conducted on the Kish islands to identify various species of reef fishes on October 1997 to November 1998. Experiment was carried out at 77 stations around the islands. Samples were collected by underwater purse_seining, scuba diving, and using anesthetizes by injection around the fish hiding area. Results conducted that overall 113 species belong to 47 families were identified of which Pomacentridae, Acanthuridae, Scaridae and Lutjanidae are the most important in terms of number of species represented. 4 species of Apogonidae, 6 species of Lutjanidae, 11 species of Pomacentridae, 6 species of Nemipteridae, 6 species of Serranidae, 3 species of Teraponidae, 3 species of Sparidae, 3 species of Scorpaenidae, 3species of Scaridae, 3 species of Lethrinidae, 4 species of Labridae, 4 species of Gobiidae, 4 species of Chaetodontidae, 4 species of Carangidae, 2 species of Belonidae, 2 species of Balistidae, 2 species of Acanthuridae, 2 species of Tetraodontidae, 2 species of Siganidae, 2 species of Ostraciidae, 1 species of Monacanthidae, 1 species of Leiognathidae, 1 species of Atherinidae are the species presented in coral reefs at Kish island.}, Keywords = {Ornemental fish, Persian Gulf, Iran}, volume = {2}, Number = {2}, pages = {21-36}, publisher = {Iranian Fisheries Research Organization}, url = {http://jifro.ir/article-1-3178-en.html}, eprint = {http://jifro.ir/article-1-3178-en.pdf}, journal = {Iranian Journal of Fisheries Sciences}, issn = {1562-2916}, eissn = {}, year = {2000} } @article{ author = {Siddigui, F.A.}, title = {The larval development of Upogebia assisi Barnard, 1974 (Decapoda, Upogebiidae) reared under laboratory conditions from ovigerous femail to postlarvae}, abstract ={The ovigerous females of Upogebia (Upogebia assisi) were collected from Pacha (24o 50 54"N, 66o 43 E) on October 6 and 7, 1994 and 1995 respectively. They were kept for rearing under laboratory conditions at room temperature (25-32oC) in the filtered seawater with salanity of 35-36 parts per thousand (ppt) and pH 7.8-9. Development of larvae proceeds from first to three or four zoeal and postlarval stages in the duration of 8-14 days. The larval and postlarval stages of Upogebia (U. assisi) are described, illustrated and compared with the laboratory reared larval and postlarval stages of U. quddusiae by Siddiqui and Tirmizi (1995) from Pakistan and Upogebia (U. kempi) n.sp. by Shenoy (1967) from India.}, Keywords = {Decapoda, Upogebiidae, Larval, Development, Upogebia (U. assisi) Pakistan }, volume = {2}, Number = {2}, pages = {37-56}, publisher = {Iranian Fisheries Research Organization}, url = {http://jifro.ir/article-1-3179-en.html}, eprint = {http://jifro.ir/article-1-3179-en.pdf}, journal = {Iranian Journal of Fisheries Sciences}, issn = {1562-2916}, eissn = {}, year = {2000} } @article{ author = {Gharanjik, B.M.}, title = {The marine algae of the Sistan and Baluchestan Province, Iran}, abstract ={The identification of marine algae in the Sistan and Baluchestan Province were performed from December 1998 to November 1999 at the coastal area of Gwatr (25 10´ N; 61 30´ E) and Mydani (25 24´ N; 59 5´ E). Data on vegetation were gathered in subtidal and intertidal zones by seasonal and monthly sampling, respectively. Samples were transferred to the laboratory and fixed in 4% formalin. According to some references the marine algae were recognized. Also, the herbarium sheet and algal photos were obtained. To final approval, the prepared samples were send to scientific centers of America, Chana and Pakistan (Wynn; Tseng and Qari, 1999). There are a number of genera and species of main algae consisting of Ulvaceae in green algae, Gildiaceae, Gracilariacea and Hypneacea in Red algae and Sarggaceae in brown algae.}, Keywords = {Marien algae, Oman Sea, Sistan and Baluchestan Province, Iran}, volume = {2}, Number = {2}, pages = {57-70}, publisher = {Iranian Fisheries Research Organization}, url = {http://jifro.ir/article-1-3180-en.html}, eprint = {http://jifro.ir/article-1-3180-en.pdf}, journal = {Iranian Journal of Fisheries Sciences}, issn = {1562-2916}, eissn = {}, year = {2000} } @article{ author = {Jalali, B. and Barzegar, M. and Shamsi, Sh.}, title = {Occurrence and description of Dactylogyrus sphyrna Linstow, 1878 (Monogenea: Dactylogyride) on the gills of and Iranian endemic fish Leucisucs persidis Coad, 1981 as a new host}, abstract ={Leuciscus persidis as Iranian endemic fish in Kaftar lake and its headwaters (Mesopotamian subregion, Kor-Neiriz basin and Shadkam river) has been infected with a species of Dactylogyrus sphyrna. Comparison of collected parasites with Euro-Asian subregion showed that the similarity of them is more than their differences, although a little difference between them was observed. In this paper also introduce of Dactylogyrus sphyrna parasite to the new host is discussed.}, Keywords = {Dactylogyrus sphyrna, New host, Freshwater Fish, Iran}, volume = {2}, Number = {2}, pages = {71-76}, publisher = {Iranian Fisheries Research Organization}, url = {http://jifro.ir/article-1-3181-en.html}, eprint = {http://jifro.ir/article-1-3181-en.pdf}, journal = {Iranian Journal of Fisheries Sciences}, issn = {1562-2916}, eissn = {}, year = {2000} } @article{ author = {Mashaii, N. and Balouch, M. and Moubedi, I.}, title = {New records about helminth parasites of the marsh frog, Rana ridibunda ridibunda (Anura: Ranidae) from the north of Iran}, abstract ={A field trials were conducted to assess the helminth parasites of 12 marsh frogs (Rana ridibunda ridibunda) in the Anzali, Astara and Aghbaba regions in the north of Iran in May 1994. Experimental results showed that 83.8% of the Anzali marsh frogs were infected by one or two kinds of metacercarian cysts of digenetic trematodes. The helminth parasites were included Skrjabinoeces breviansa, S. smilis, Gorgodera dollfusi, Opisthioglyphe ranae, Prosotocus confusus, Encyclometra colubrimurorum and Codonocephalus urniger. Frogs collected from the Astara region was infected by the helminth parasites such as Diplodiscus subclavatus, P. confusus, C. urniger and Cosmocerca ornata. There were only one digenetic trematodes cysts such as Pleurogenoides medians in the Aghbaba region. In this paper, except the S. smilis, C. urniger and O. ranae we report 7 new helminth parasites in the north Iranian freshwater system for the first time.}, Keywords = {Parasite, Helminth, Digenea, Nematode, Frog, Iran}, volume = {2}, Number = {2}, pages = {77-88}, publisher = {Iranian Fisheries Research Organization}, url = {http://jifro.ir/article-1-3182-en.html}, eprint = {http://jifro.ir/article-1-3182-en.pdf}, journal = {Iranian Journal of Fisheries Sciences}, issn = {1562-2916}, eissn = {}, year = {2000} } @article{ author = {Moghim, M. and Vajhi, A.R. and Veshkini, A. and MasoudiFard, M.}, title = {Determination of sex and maturity in Acipenser stellatus by using ultrasonography}, abstract ={Knowledge of both sex and maturity stage without killing fish is important from many aspects. The establishment of accurate sex and maturity determination without external sexual dimorphism or when external characters are not developed has usually involved the use of either hormone radioimmunoassay or biopsy techniques. These methods are time and labor consuming as well as harmful to fish. Therefore, it would be economically important for caviar producing countries to develop accurate, effective and non-invasive method for determination of sex and maturity in sturgeons. Ultrasonography examination was performed to determine sex and differences between matured and immatured Acipenser stellatus. The 249 captured stellate sturgeons larger than 95 cm in length were examined with a linear transducer. Sex determination was carried out based on the differences in echogenicity and morphology of the ovaries and testes. Results of ultrasonography were confirmed at necropsy: 199 fish were female (63 matured and 136 immatured) and 50 were male (29 matured and 21 immatured). Ultrasonographic examination resulted in sex determination with 97.2% accuracy. Gonads of immature males may be difficult to discern. The speed of examination was around 30 seconds or less per fish depending on the stage of maturation of fish.}, Keywords = {Stellate sturgeon, Acipenser stellatus, Ultrasonography, Sex determination immature gonads, Mature gonads}, volume = {2}, Number = {2}, pages = {89-99}, publisher = {Iranian Fisheries Research Organization}, url = {http://jifro.ir/article-1-3183-en.html}, eprint = {http://jifro.ir/article-1-3183-en.pdf}, journal = {Iranian Journal of Fisheries Sciences}, issn = {1562-2916}, eissn = {}, year = {2000} } @article{ author = {Pourkazemi, M. and Skibinski, D.O.F. and Beardmore, J.A.}, title = {A preliminary study on phylogenetic relationship between five sturgeon species in the Iranian Coastline of the Caspian Sea}, abstract ={The phylogenetic relationship of five sturgeon species in the South Caspian Sea was investigated using mtDNA molecule. Sequence analysis of mtDNA D-loop region of five sturgeon species [Great sturgeon (Huso huso), Russian sturgeon (Acipenser gueldenstaedtii), Persian sturgeon (Acipenser persicus), Ship sturgeon (Acipenser nudiventris), Stellate sturgeon (Acipenser stellatus)] and DNA sequencing of two Escherichia coli cloned DNA fragments sized 758 bp and 922 bp was carried out. Sequence comparison of the mtDNA D-loop region between the five sturgeon species showed 100 % sequence identity. However comparison between a short (758 bp) and long (922bp) mtDNA D-loop region within Russian sturgeon showed a 5 bp differences. On the contrary a partial sequence of the mtDNA ND5 gene region showed high sequence and organic base variability in the five species. These results indicate that direct sequencing of ND5 gene provide more information for phylogenetic or population level studies in sturgeon species. The present study revealed a distinct classification among the five sturgeon species. On the basis of the phylogeny tree it is clear that a close evolutionary relationship exists between the great sturgeon and ship sturgeon that was verified in five phylogenetic trees. On the other hand a close resemblance was also seen between Persian and Russian sturgeon indicates that these two species have a closer evolutionary relationship. This study also showed a 2.2 % sequence divergence in sequence data for ND5 gene between Persian sturgeon and Russian sturgeon which indicated that these two species diverged from each other approximately one million years ago. However the verification of this calls for DNA sequencing of different genes. }, Keywords = {Sturgeon, Caspian Sea, Phylogenetic, Iranian Coastline, PCR}, volume = {2}, Number = {1}, pages = {1-12}, publisher = {Iranian Fisheries Research Organization}, url = {http://jifro.ir/article-1-3170-en.html}, eprint = {http://jifro.ir/article-1-3170-en.pdf}, journal = {Iranian Journal of Fisheries Sciences}, issn = {1562-2916}, eissn = {}, year = {2000} } @article{ author = {RezvaniGilkolaei, S.}, title = {Study of mtDNA vatriation of Russian sturgeon population from the south Caspian Sea using RFLP analysis of PCR amplified ND5/6 gene regions}, abstract ={PCR-based mtDNA analysis (RFLP) was used for the study of population differentiation in the Russian sturgeon (Acipenser gueldenstaedti). The mtDNA ND5/6 gene regions were amplified using PCR techniques followed by RFLP analysis. 39 different composite haplotypes were detected among 62 specimens. 29 haplotypes were rare occuring only once in two regions (west and east areas of the Southern Caspian Sea). The average nucleotide and haplotype diversity within populations were estimated to be 0.028727 0.00 and 0.9645 00042 respectively and divergence between populations to be 0.052%. A highly significant differences were observed in the distribution of haplotypes between the west and east areas. }, Keywords = {mtDNA, Russian sturgeon, South Caspian Sea, RFLP analysis, PCR, ND5/6}, volume = {2}, Number = {1}, pages = {13-36}, publisher = {Iranian Fisheries Research Organization}, url = {http://jifro.ir/article-1-3171-en.html}, eprint = {http://jifro.ir/article-1-3171-en.pdf}, journal = {Iranian Journal of Fisheries Sciences}, issn = {1562-2916}, eissn = {}, year = {2000} } @article{ author = {Bahmani, M. and Oryan, S. and Pourkazemi, M. and Vosoughi, G.}, title = {Ecophysiological indicators of stress in female Persian sturgeon, Acipenser persicus}, abstract ={The study on the ecophysiological impacts of stress in female Persian sturgeon broodfishes revealed that the average cortisol level varried in all broodfish caught at the Sefidrud River (163.38±21.2ng mL-1), Sefidrud River estuary (260.27±19.7ng mL-1) and Gorganrud River estuary (179.38±20.8ng mL-1). The variations in serum glucose levels were 140.65±12.05mg dL-1, 144.44±5.9mg dL-1 and 126.24±11mg dL-1, respectively. The maximum level of cortisol  (781 ng mL-1) and serum glucose (281 mg dL-1) were observed during the transport of broodfish from the capture stations to the hatcheries and the minimum level of cortisol (25.2 ng mL-1) and serum glucose (33 mg dL-1) were observed during the confinement of broodfishes in the breeding ponds. The rhythmic and significant variations of cortisol level during capture, handling, transport and confinement of female Persian sturgeon broodfish in all three regions can be regarded as a valuable indicator of stress}, Keywords = {Stress, Cortisol, Glucose, Acipenser persicus, Broodfish}, volume = {2}, Number = {1}, pages = {37-52}, publisher = {Iranian Fisheries Research Organization}, url = {http://jifro.ir/article-1-3172-en.html}, eprint = {http://jifro.ir/article-1-3172-en.pdf}, journal = {Iranian Journal of Fisheries Sciences}, issn = {1562-2916}, eissn = {}, year = {2000} } @article{ author = {Pourgholam, R. and Saeidi, A.}, title = {Evaluation of some haematological variables of Acipenser persicus and Acipenser stellatus at different water temperaures}, abstract ={Some haematological variables including Red Blood Cells (RBC), White Blood Cells (WBC) differential counts, Haemoglobin (Hb), Haematorite (HCT), Mean Corpuscular Volume (MCV), Mean Corpuscular Haemoglobin (MCH) and Mean Corpuscular Haemoglobin Concentration (MCHC) were measured in 90 stellate sturgeon juveniles Acipenser stellatus (1-2 years old) and 90 Persian sturgeons Acipenser persicus (1-2 years old) at different water temperature 10-15C, 16-20?C and 21-25C. Also these parameters were evaluated in 84 adult including A. persicus (54 samples) and A. stellatus (30 samples) collected from Caspian Sea during spring and autumn 1997. The results have showed that WBC differential counts, Hb, HCT, MCV and MCH were identical for both species at the mentioned water temperatures. However, the values for RBC of A. persicus were generally less than those of A. stellatus. These haematological factors relatively increased with the water temperature increasing. Although RBC and WBC values of A. persicus were less than those of A. stellatus. The rates for HCT, MCV and MCH were higher in A. persicus. }, Keywords = {Caspian Sea, Acipenceridae, Haematology}, volume = {2}, Number = {1}, pages = {53-60}, publisher = {Iranian Fisheries Research Organization}, url = {http://jifro.ir/article-1-3173-en.html}, eprint = {http://jifro.ir/article-1-3173-en.pdf}, journal = {Iranian Journal of Fisheries Sciences}, issn = {1562-2916}, eissn = {}, year = {2000} } @article{ author = {JabbarzadehShiadeh, S.M. and Abtahi, B. and MojaziAmiri, B. and Nazari, R.M.}, title = {Study on the changes of some physiological factors during osmoregulation of juvenile Persian sturgeons (Acipenser persicus)}, abstract ={Experimental trials of acclimatization of juvenile Persian sturgeon, Acipenser persicus to different salinites of 0,5,10, 15ppt were studied. The juvenile Persian sturgeons in three weight classes (1.5, 3, 5g) have been  transfered from freshwater to different concentrations of saline water.  Na+, k+, Cl- concentrations of blood serum and the changes in the number and size of chloride cells were measured. Na+ concentration showed an imperceptible trend and K+ concentration had a decreasing one size of changed chloride cells in different salinities were 8.6-13±0.3 μm and their numbers were (25-65±3) in 5 pairs of fillaments. The results revealed that salinity tolerance was increased with the fish size. According to this study, there is a direct relation between the number and size of chloide cells and salinities and time exposure.}, Keywords = {Osmoregulation , Chloride cell, Persian sturgeon, Acipenser persicus }, volume = {2}, Number = {1}, pages = {61-74}, publisher = {Iranian Fisheries Research Organization}, url = {http://jifro.ir/article-1-3174-en.html}, eprint = {http://jifro.ir/article-1-3174-en.pdf}, journal = {Iranian Journal of Fisheries Sciences}, issn = {1562-2916}, eissn = {}, year = {2000} } @article{ author = {Mohseni, M. and Pourkazemi, M. and Kazemi, R. and NoroozFoshkhomi, M.R. and MojaziAmiri, B. and Kaladkova, L.N.}, title = {Study on the effects of stocking density of eggs and larvae on the survival and frequency of morphological deformities in Persian sturgeon, great sturgeon and stellate sturgeon}, abstract ={The effects of stocking density of eggs and larvae were studied related to the morphological deformities appearance, percentage of survival, and growth rate, in order to achieve the most suitable stocking density for eggs and larvae in incubators and rearing tanks. The egg stocking densities were 500, 700 and 900 g per incubator for great sturgeon, 500 and 1000g per incubator for Persian sturgeon and 400 and 425g per incubator for stellate sturgeon. Larvae were stocked at densities of 10000, 15000 and 20000 larvae per m3 for great sturgeon, 21660, 41004 and 69000 larvae per m3 for Persian sturgeon and 15770, 23250, 57660 and 62250 larvae per m3for stellate sturgeon. The results indicate significant differences in percentage of survived in fertilized eggs (p<0.05). By transferring the larvae into the fibreglass tanks, growth and survival rate decreased, whereas mortality and incidence of deformities increased as stocking density increased particularly on the onset of exogenous feeding. In the present study totally 20 types of deformities including bent spine, hunched back, hanging or looped tail, fin deformation, stunted body length and etc. were registered. The results showed that the morphological deformities frequency in dead and live fish were higher in high stocking densities comparing to the low stocking densities. }, Keywords = {Great sturgeon, Persian sturgeon, stellate sturgeon, Morphological deformities, Stocking density, Larval survival}, volume = {2}, Number = {1}, pages = {75-90}, publisher = {Iranian Fisheries Research Organization}, url = {http://jifro.ir/article-1-3175-en.html}, eprint = {http://jifro.ir/article-1-3175-en.pdf}, journal = {Iranian Journal of Fisheries Sciences}, issn = {1562-2916}, eissn = {}, year = {2000} } @article{ author = {YousefpourPirbazari, H. and Aghtouman, V. and Mohseni, M.}, title = {Determination of optimum feeding rate expressed as percent of body weight in Persian sturgeon, Acipenser persicus}, abstract ={The present study was conducted to determine the best feeding rates expressed as percent of body weight in Persian sturgeon fingerlings at different body weights. Eighteen fiberglass tanks each holding 30 fingerlings with an average initial body weight of 19.45 ± 0.5 g were used in this experiment. Six different feeding trials (1, 2, 3, 4, 5 and 6 percent of body weight) were employed and each trial was run in three replicates through a period of 60 days (4 periods of 15 days). The results were analyzed using Statgragh software and compared using Duncan test. The optimum recommended feeding rate was 4 percent of body weight for an increase of body weight from 19.5 to 31g and 3 percent of body weight for an increase of body weight from 33 to 47g. For an increase in body weight from 47 to 90g the recommended feeding rate was 3 percent of body weight. The recommended doses are subject to alteration with variation in water temperature. }, Keywords = {Persian sturgeon, Acipenser persicus , Feeding, Body weigth}, volume = {2}, Number = {1}, pages = {91-104}, publisher = {Iranian Fisheries Research Organization}, url = {http://jifro.ir/article-1-3176-en.html}, eprint = {http://jifro.ir/article-1-3176-en.pdf}, journal = {Iranian Journal of Fisheries Sciences}, issn = {1562-2916}, eissn = {}, year = {2000} }