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Open Access Article

1 - Comparison of blood factors and growth of Rainbow Trout in brackish water and fresh water
Sh. Masaeli H. Hosseinzadeh Sahafi M. Alizadeh H. Negarestan

In this investigation, Rainbow trout fish's growth rate, blood factors were studied in brackish water (10 ds/m) and fresh water. For doing this research, some 180 young Rainbow trout with a of 47.1 0.1grams were realest in 6 polyethylene tanks with each 1.5m3 wat More

In this investigation, Rainbow trout fish's growth rate, blood factors were studied in brackish water (10 ds/m) and fresh water. For doing this research, some 180 young Rainbow trout with a of 47.1 0.1grams were realest in 6 polyethylene tanks with each 1.5m3 water. Two treatments with three replicates were used in this study. At the time of testing, all environmental conditions were almost constants similar. Feeding at the time of rearing for every replicate, with due attention to water temperature and fish biomass was done. Every fifteen days the process of biometry of fish was done and recorded. After 126 days the live fish were transferred to libratory and after biometry of their weight and length, all desired blood factors were measured using blood from their hearth. The results of four biometry processes showed that fish growth in brackish water was significantly increased (p<0.05). With due attention to other treatments amount of WBC, Hb, HCT, MCV, MCH, MCHC, Lymph, Throm, K+   in brackish water showed significant in crease as compared with specimens fresh water (P<0.05) Mono, Neut, Eos, Na+ in brackish water and fresh water did not show any Significant difference. (p>0.05)  Manuscript profile

Open Access Article

2 - A study on effects of isoflavones of Soya oil on growth and maturation of Oocytes of unmature female three-spot Gourami(Trichogaster trichopterus)
T. Naji H. Hosseinzadeh Sahafi M. K. Jazebizadeh Z. Samari

The effects of Soya oil isoflavones on growth and maturation of Oocytes in unmature Trichogaster trichopterus female is studied. After declorization of aquarium water, unmature female fish specimens with weight of 1.5- 2.5 g were placed in water. The experiments were do More

The effects of Soya oil isoflavones on growth and maturation of Oocytes in unmature Trichogaster trichopterus female is studied. After declorization of aquarium water, unmature female fish specimens with weight of 1.5- 2.5 g were placed in water. The experiments were done in seven treatment (two control treatment and five main treatment),each treatment invoved 10 fish specimens. Main fish treatments received 5 doses of Soya oil with 10, 20, 30, 40 & 50 µg/kg. Injection were intra muscular under dorsal fin of fishes. Seven days after injection fish specimens were kiled, their ovaries were removed and fixed in10% formalin. The routine procedures of preparation of tissue were fpllowed and the paraffin bloks were cut at 5-7 micros, stained with H&E. Then, the mean of gonadosomatic index, frequency percentage of matured and unmatured ovaries, the mean of small and big diameter of mature and unmatured ovaries and histological structures of ovary were compared with control treatments,gonadosomatic index in controls were 5.7% and in the fifth treatment it was 6.7% .Also with increased dose ,frequency percentage of matured and diameter of mature ovaries increased. Results showed the application of Soya oil isoflavones can induce final maturation in Three spot gourami and most effective was more doses of Soya oil (p<0/05). Manuscript profile

Open Access Article

3 - Masculinization of Zebra Cichlid (Cichlasoma nigrofasciatum) with Oral Treatment of 17Alpha-Methyl Testosterone and the Effects on Mortality Rate, Sterilization and Mixed Sexual Fish
S. H. Mosavi Sabet A. Zamini H. Vahab Zadeh Rodsari Z. Morad Khani

In this study production of a monosex Zebra Cichlid Cichlasoma nigrofasciatum population was studied. Cichlids fries (7 days) were fed with six different hormonal doses 30, 60, 100, 150, 200 & 300 mg 17alpha-methyl testosterone/kg diet for 40 days. The hormone was a More

In this study production of a monosex Zebra Cichlid Cichlasoma nigrofasciatum population was studied. Cichlids fries (7 days) were fed with six different hormonal doses 30, 60, 100, 150, 200 & 300 mg 17alpha-methyl testosterone/kg diet for 40 days. The hormone was added to food by alcohol dry method. During the test, fish were kept in 28±1 in temperature, 7.5 to 8.3 in pH and less than 170±10 mg/lit in water hardness. Fish were fed 6 times, from 6 am to 11 p.m. Results showed that the male numbers obtained in all treatments were more than the control group, and the dose of 100mgMT/kg food was more efficient in sex reversal than others, resulting in all males (P<0.05). Histological results showed dose of 300mgMT/kg food was more efficient in sex sterilizing than the others, resulting in 97.6% (P<0.05). 300mgMT/kg food increased mortality rate to 37.5% (P<0.05). 30mg MT/kg food increased mixed sexual to 8.8% (P<0.05). Hormonal sex reversal is a good method to produce mono sex fish population and limits unwanted breeding. Manuscript profile

Open Access Article

4 - The histochemical and histological survey of female Mullie liver and ovary (Pociliae sphenops) on three groups (adult, preadult and immature)
Sh. Farahani Sh. Jamili

This research was performed in order to survey the histochemical and histological factors of female Mullie  ovary and liver ( Pociliae sphenops)on three groups(adult, preadult and immature) in 2008 at laboratory complex of Science and ResearchUniversity. Then 10 nu More

This research was performed in order to survey the histochemical and histological factors of female Mullie  ovary and liver ( Pociliae sphenops)on three groups(adult, preadult and immature) in 2008 at laboratory complex of Science and ResearchUniversity. Then 10 numbers of each group(totally 30) were evaluated to determine the histochemical factors(liver and ovary protein and lipid). The tissues were kept in -70 ċ to do the rest of experiments. Also 12 numbers were surveyed to do the histological process and observation by light microscope(Hematoxilin-Eosin, Von- kossa for calcium and Sudan- Black B for lipid). According to statistical analysis, protein and lipid percentages of ovary tissue on three groups, adult(4-month-old), preadult(3-month-old) and immature(1.5- month-old) revealed the significant variation(P<0.05) and immature, preadult and adult groups had respectively the most and least lipid and protein percentages of ovary. The significant variations (P<0.05) also were seen by liver protein and lipid. The immature livers protein was higher than preadults and adults. The measurement of liver total lipid showed that preadult lipid was more than adult and immature. Calcium staining in both liver and ovary tissues expressed that this element will increase during growth and development. Manuscript profile

Open Access Article

5 - Study on main lipid of the seapen Virgularia gustaviana in the Sorou Etaury, Bandar Abbas costal zone,Persian Gulf
Sh. Safaeian A. Esmaieili Sh. Sharifi

Sea pens or pennatulaceans are a highly specialized group of anthozoan coelenterates. They are bentic sessile animals. Sea pens were collected   by wading at low tide in inter tidal zone From Bandar Abass Costal area in autumn 2009.Sea pens were studied by mor More

Sea pens or pennatulaceans are a highly specialized group of anthozoan coelenterates. They are bentic sessile animals. Sea pens were collected   by wading at low tide in inter tidal zone From Bandar Abass Costal area in autumn 2009.Sea pens were studied by morphologically trails as well as espiculs .  Sea pens   identified by classification keys and also acid digestion method, and samples were sent to academic center of California for conferm ation. Comparing identification keys genus from Virgularidae family was identified, it consisted of     Virgularia  gustaviana  . Sea pen,s distribution showed a patchy form in the   intertidal zone. Sea pen,s biomass was   determed to be 10.77 g/m2 in Souru Estuary. Sea pens contain large quantities of lipids in their tissues; these lipids may be either structural or for storage .in this study, lipid percentages of Virgularia gustavianawere measured and percentage of sterol profile  was assessed. Total lipid of Virgularia gustaviana was 21.96 percent and sterol profile which was5680.31mg/kg contain cholesterol 1910.38mg/kg that equal57.95 percent of total sterol and brassicasterol ,campestrol ,campestanol ,stigmasterol ,beta-sitosterol  were measured.  Fatty acid profiles was measurd by GC-Mass and Heptadecan 44.25 % beta.-Bisabolene ss Cyclohexene'1,18.16 %, and Metyl arachidonate 54.17 % was assessed. This research is first step in sea pen identification and it,s lipid components in Iranian coastal waters of   Persian Gulf. n was higher than preadults and adults. The measurement of liver total lipid showed that preadult lipid was more than adult and immature. Calcium staining in both liver and ovary tissues expressed that this element will increase during growth and development. Manuscript profile

Open Access Article

6 - A study on effects of mutagenicity of muscle, cartilage and liver of Persian Gulf shark (Sphyrena lewini) , using the bacterium Salmonella thyphimurium
M. Emtiazjoo L. Salimi S. Samadi F. Hayati

Shark cartilage, liver and muscle may have an inhibitory effect on mutagenicity and accordingly there is a correlation between antimutagenesis and anticarcinogenesis. The use of antimutagens and anticarcinogens in everyday life is the most effective procedure to prevent More

Shark cartilage, liver and muscle may have an inhibitory effect on mutagenicity and accordingly there is a correlation between antimutagenesis and anticarcinogenesis. The use of antimutagens and anticarcinogens in everyday life is the most effective procedure to preventing human cancer and genetic diseases. In this research, we studied the effects of cartilage, muscle and liver extracts of family Sphyrnidae in Persian Gulf on antimutagenicity and antioxidant by Ames test, using Salmonella typhimurium strains in the second phase, especially in the presence and absence of liver microsomal fraction (S9). The number of revertant colonies was compared with negative and positive controls. The results showed that, percentage of antimutagenic and antioxidant effect of cartilage was around 90%. Cartilage extract showed stronger antimutagenic effect in comparison with muscle and liver extracts.Antimutagenic substances may prevent cancer because they can destroy mutagens both inside and outside body cells, and block mutagens that damage DNA and cause mutation in cells. These extracts exhibited an antimutagenic activity that could be beneficial in late as well as early stages of cancer development Manuscript profile

Open Access Article

7 - An Investigation on reproducation stages of Perca fluviatilis in Anzali Lagoon
A. Ashja Ardalan A. Vosooghi L. Sadegh

This study was carried out in the Anzali Lagoon From 2007 to 2008 on Perca fluviatilis (Percidae). The sampling was monthly and samples were collected by Gillnet. 254 specimens of perca fluviatilis were caught. The measured parameters were: Tl, Fl. body weight, sex, go More

This study was carried out in the Anzali Lagoon From 2007 to 2008 on Perca fluviatilis (Percidae). The sampling was monthly and samples were collected by Gillnet. 254 specimens of perca fluviatilis were caught. The measured parameters were: Tl, Fl. body weight, sex, gonad weight and egg diameter. Mean Fork length and body weight for males & females were 188 .4 mm, 116078gr respectively. In this study, 7 maturation stages were recognized; the most samples were at first stage (39.4%). We could recognize sexuality in 251 specimens. Males were %37 percent and females % 63 percent of the catch. The sex – ratio was, F: M = 1.7:1. The range of egg diameter was measured 14 to 42.25  , and the average of egg diameter has been 28.3±8.19 . The absolute Fecundity was estimated to be 35942.93 eggs.  Manuscript profile

Open Access Article

8 - Assessment of Diversity, density and distribution of zooplankton of estuarine region of Tajan River
M. Shapoori A. Javanshir H. Azarbad

Assessed region consisted of TajanRiver estuarine region is one of the sub-basins of the Caspian Sea in flow basin, which has a 2-km2 area. In this assessment, 6 stations were chosen in riverine, estuarine and marine regions, and density, diversity and distribution of z More

Assessed region consisted of TajanRiver estuarine region is one of the sub-basins of the Caspian Sea in flow basin, which has a 2-km2 area. In this assessment, 6 stations were chosen in riverine, estuarine and marine regions, and density, diversity and distribution of zooplankton were measured by monthly sampling. Identified zooplankton of Tajan region consisted of 4 main groups, including Protozoa, Rotatoria، Cladocera,and Copepoda while Temporary zooplankton comprised bivalve larvae (veliger), Barnacles ، Ostracoda and Tintinidium. Totally, 19 genera of the above mentioned groups were identified. Copepoda was recognized as the most important and dominant planktonic group .The results of one-way Analysis of Variance and descriptive statistics showed a significant difference among 3 reveries, estuarine and marine regions. For the average amount of zooplankton diversity index with confidence percentage of 99. Tukey multi- range comparison test showed that Shannon diversity index indicated a significant difference between the river and the sea. Assessing the diversity index in 3 riverine, estuarine and marine regions during a year, estuarine region had the highest diversity compared with riverine and marine regions. Manuscript profile

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