Showing 29 results for Bani
Ali Nekuru, Mohammad Reza Imanpur, Vahid Taqizade, Ali Shabani, Mohammad Momeni,
Volume 2, Issue 4 (Spring 2013)
Abstract
In this study, reproduction cycle of Silver pomfret (Pampus argenteus, Euphrasen, 1788) was examined in the coastal waters of the Persian Gulf waters (Qeshm Island). Sampling was done using gill and fixed net, in 5-10 m depth, during April 2011 to March 2012. At the end of sampling period, 474 fish were collected (292 male and 182 female). Male to female ratio was increased in month of peak spawning (P < 0.001, Chi-square) and the overall percentage of males during this period was 67%. Maturity cycle and histology classification was descriptive based on surface status, oocyte size, follicle layer, cell wall, vacuoles, nucleus and pri-nucleus. At the end of study, seven stages of ovarian development were recognized. These stages are including, virgin, resting, developing, developed, gravid, running or spawning and recovery. Also, no significant differences (Two way ANOVA, P > 0.05) were observed in the oocytes size frequency distribution between different parts of ovary (proximal, middle and distal). Females are most fecund at 24.5-26 cm (SL) and males are most fecund at 20-21.5 cm length class (SL). This species has a prolonged spawning period as extend of April to September. Two peak spawning observed for both sex. The first peak in May and the second peak in July were observed for females and the first peak in June and the second peak in July were observed for males. At the end of experiment, it was concluded that there was no difference between reproduction cycles of Silver pomfret in compare with other repetitious spawning fishes.
Roghayeh Alizadeh, Ehsan Kamrani, Mohsen Safaei, Mohamad Momeni, Omolbanin Taheri Kondar,
Volume 3, Issue 2 (Autumn 2013)
Abstract
Indian sandwhiting Sillago sihama from family Sillaginidae is food acceptability in Hormozgan province. 1204 samples were collected from Coastal Waters of Bandar Abbas by encircling gill net and vessels from July 2011 to July 2012 and 884 samples were investigated for length- length and length-weight relationships.The results indicated that the length-length and length-weight relationships specially total length- standard length relation in the male (r2= 0.948) and in the female (r2=0.949), total length-weight relation in the male (r2= 0.932) and in the female (r2=0.927), standard length- weight relation in the male (r2= 0.907) and in the female (r2=0.912) were highly correlated (P<0.05).
The relationship between total length and weight can be expressed in the male as: y = 0.008x 2.942
and in the female y = 0.008x 2.952 and The relationship between standard length and weight in the male as: y = 0.023x 2.776 and in the female y = 0.016x 2.897 which indicates that Sillago sihama, has isometric growth.
Ommolbanin Taheri Kondor, Mir Masoud Sajjadi, Iman Sourinejad, Abd- Alrasoul Daryaei, Ghodrat Mirzadeh, Fereshteh Khademi,
Volume 3, Issue 3 (Winter 2014)
Abstract
One of the major issues in aquaculture is to keep balance between growth rate of fish and optimal use of consumed food. L-carnitine is considered an effective food supplement for fish growth. Sobaity seabream is one of the commercially important species in the Persian Gulf that is highly considered in aquaculture too. Growth indices and survival rate of 240 Sobaity fingerlings with mean weight of 3.01±0.03g were investigated during ten weeks after supplementing diet with L-carnitine. The study was performed with four levels of 0.0, 500, 1000 and 1800 mg L-carnitine per kg of diet each with 3 replicates based on the satiation. Sobaity fingerlings fed the level of 1000 mg L-carnitine per kg of diet had the highest growth rate and the lowest feed conversion rate (P<0.05). The highest average specific growth rate, percentage body weight gain, daily growth rate and protein efficiency ratio was obtained in level of 1000 mg L-carnitine per kg of diet (P<0.05). Condition factor and survival rate were not significantly different between the treatments (P>0.05). Based on the results, supplementation of diet with L-carnitine would favorably influence the growth performance of Sobaity and the most effective dose on growth indices was the level of 1000 mg L-carnitine per kg of diet.
Sedighe Rezaei, Seyed Yousef Paighambari, Hadi Raeisi, Mohamad Javad Shabani,
Volume 3, Issue 4 (Spring 2014)
Abstract
This study was performed to estimate the growth parameters and mortality rate of (Nemipterus japonicus Bloch, 1971) with using length frequency data in Bushehr fishing grounds. sampling did monthy with using cutlassfish pelagic trawl, gillnet and bottem trawl. The growth parameters of k and L∞ were estimated 0.79 y-1 and 31.5 cm respectively. The t0 was estimated -0.2. b quantity for this species equals to 2.71 which indicating the negative allometric growth model. W∞ quantity estimated about 390.07 g The exploitation rate (E) For this species was 0.31,with respect to fishing effort it is low and it shows that this stock has potential for more exploit too.
Mahdi Banaee, Majid Gorbani, Mehdi Naderi,
Volume 4, Issue 2 (Autumn 2014)
Abstract
Golden barb (Barbus luteus) is one of the species in south and southwest of Iran which is greatly favorable to residents of the region. Unfavorable ecological conditions in habitat of this species and overfishing have led to reduction of the population of golden barb. Therefore, to restore the natural stock of this species, identifying its reproductive cycle associated with its habitat is of a great importance. In this study, the reproductive status of golden barb in the Maroon River in Khuzestan Province was studied in six sampling steps during four seasons. Also, morphological indicators, sex ratio, age of fish, gonadosomatic and hepatosomatic indices, histological changes in the testis and ovary of the fish were studied. The ratio of male fish to female was 1 to 2.47. The maximum value of gonadosomatic index (GSI) is among the specimens aged 2 to 6 years and in April and May. An increase of hepatosomatic index (HIS) during April and May may indicate the increased activity of liver during vitellogenesis and vitellogenin synthesis that is well verified by histological results of ovarian tissue. Based on our findings, we recommend that the maximum reproductive activity of golden barb in the Maroon River starts around the end of March and continues to early of July.
Mehran Parsa, Seyed Yousef Paighambari, Rasul Ghorbani, Mohammad Javad Shabani,
Volume 4, Issue 2 (Autumn 2014)
Abstract
The aim of this study was to comparing the effect of different hanging ratios (E=0.5 and 0.6) of drift gillnets on catch rates, length composition and Catch per Unit Effort (CPUE) in Bushehr coastal waters between late September 2010 to late March 2011. The length frequency of Spanish Makerels did not differ significantly between gillnets with 0.5 and 0.6 hanging ratios (P>0.05). A total of 55889 kg of various large pelagic species were caught during 6 cruises in six months that 26409 and 29552 kg were related to gillnets with 0.5 and 0.6 hanging ratios, respectively. The catch composition of gillnet with 0.5 hanging ratio was included: Thunnus tonggol %48.81, Euthynnus affinis %25.41, Scomberoides commersonnianus %17.02, Carcharhinus amblyrhynchoides %3.87, Scomberomorus commerson %3.39, Rachycentron canadum %1.17, Sphyraena jello%0.33 and species composition of gill net with 0.6 hanging ratio was included: Thunnus tonggol %52.18, Euthynnus affinis %24.29, Scomberoides commersonnianus %16.52, Scomberomorus commerson %3.33, Carcharhinus amblyrhynchoides %2.88, Rachycentro ncanadum %0.61 and Sphyraena jello%0.19. The CPUE did not differ significantly between two gillnets (P>0.05).
Amoeei Khozani Elahe, Ali Shabani, Hamed Kolangi Miandare,
Volume 4, Issue 2 (Autumn 2014)
Abstract
Paraschistur anielseni is one of the main species of Paraschistura genus that is distributed in freshwater rivers which drain into the Persian Gulf. There has not been any study on genetic diversity of this species yet. In this investigation, 90 samples were collected from the rivers Shapour, Dalaki (Fars province) and Mand (Bushehr province) (30 samples per river) to investigate their population structure. A total of five microsatellite loci and three populations were used. Of the five loci, a total of 124 allels were obtained for all three rivers. The lowest and highest allele number were observed in the loci Bbar4 (5alleles) in Mand river and the lociIC654 (12 alleles) in Shapour river. Average observed allele (Na) in the rivers Shapour, Dalaki and Mand were 8.4, 8.4 and 8, respectively. Average genetic diversity was determined 0.462 Ho, which was separately 0.461, 0.452 and 0.365 for Shapour, Dalaki and Mand rivers, respectively. The highest Ho (0.739) and the lowest Ho (0.174) were observed in the locus IC654 (Dalaki) and the locus IC228 (Mand).The expected and observed mean heterozygosity were 0.426 and 0.817. The analysis of molecular variance revealed a high genetic diversity (98%) within investigated populations and a low distinction between populations (2%). Approximately, all loci showed deviation from Hardy-Weinberg equilibrium (HWE). According to UPGMA cluster analysis, based on genetic distance, populations of Shapour and Mond rivers were not separate, but possibly the population of Dalaki River is separate from populations of the two other rivers.
Sara Haghparast, Rasul Ghorbani, Abdol Rasul Salman Mahini, Hasan Fazli, Vali-Alla Jafari, Rahman Patimar, Shaban Najaf Pour,
Volume 4, Issue 3 (Winter 2015)
Abstract
This study was conducted to investigate morphometric variation and differentiation in common kilka (Clupeonella cultriventris) caught from Amir Abad and Babolsar fishing ports during winter 2013. Totally, 330 specimens (272 specimens from Amir Abad port and 58 specimens from Babolsar port) were caught by lift net and 30 absolute morphometric traits, 9 meristic traits, length and gonad, body weights were measured. Results of Two-way analysis of varience on standard morphometric traits indicated significant interactions between sampling stations and fish gender (P<0.05). Male and female specimens showed significant differences between stations in 74 and 48% of traits, respectively (P<0.05). Specimens of male and female caught from Babolsar port had more length and weight in contrast to their counterparts in AmirAbad. Results of DFA and scatter polt diagram of principle components (PCA) did not confirm the existence of distinct common kilka stocks at Amir Abad and Babolsar stations and sexually dimorphic between male and female individuals. Overally, morphometric traits could better explain differentiation of common kilka studied in the area.
Kaveh Amiri, Ali Bani, Narges Alijanpour, Nabee Basatnia, Ali Hadifar,
Volume 4, Issue 3 (Winter 2015)
Abstract
The present study analysed the relationship between catch amounts of the Clupeidae species and monthly average weather temperature, rainfall, wave high and water depth in the southwestern of Caspian Sea. The data from two maritime consecutive years gathered by means of industrial fishing vessel were used in the data analysis. The results showed that the correlation between monthly average water depth, wave high and rainfall with catch amounts is medium. And also, summer average catch amounts were increased with weather temperature arises and fishing area was inclined toward shoreline in this season.
Azam Noori Sibani, Arash Akbarzadeh, Ahmad Noori, Paria Parto, Mohammad Asadi, Ali Reza Razi, Mehdi Mehdipour, Morteza Yousefzadi,
Volume 4, Issue 4 (Spring 2015)
Abstract
A killifish species Aphanius ginaonis occurs in Geno hot spring is one of the unique fish species that could successfully survive and acclimated to the high temperature of hot springs. In this study, we investigated the effects of Geno's cyanobacteria extracts on growth, survival and morphology of gill tissue in Aphanius dispar exposed to normal temperature and long-term thermal stress. For this purpose, 228 fish divided in four treatments including control (25°C), thermal (40-37°C), cyanobacteria control and cyanobacteria thermal. Our results showed significant affects of prolonged thermal stress in all growth parameters of A. dispar. At the end of the experiment at day 44, most of the growth parameters significantly decreased compared to the control group. The results showed that growth factors, including specific growth rate (SGR), weight gain (WG) and food conversion rate (FCR) in the control and the control – cyanobacteria groups were significantly higher than those of thermal and thermal- cyanobacteria treatments (p<0.05). The survival rate of fish in control and control - cyanobacteria treatments was 100%, whereas survival rate significantly reduced in thermal and thermal - cyanobacteria treatments (p<0.05). Fish kept at 37-40 °C showed changes in gill tissue included blood congestion of primary lamellae and shortened secondary lamellae. In normal temperature, cyanobacteria caused blood congestion of primary lamellae, but in thermal stress, severe pathological changes observed. The conclusion can be drawn that at the thermal environment of hot spring, cyanobacteria extracted from Geno hot spring reduced the physiological functions of fish and could not modulate thermal tolerance in Aphanius fish.
Mahin Andakhsh, Seyed Abas Hoseini, Rasool Ghorbani, Hadi Raisi, Mohammad Javad Shabani,
Volume 4, Issue 4 (Spring 2015)
Abstract
The aim of this study was to record the length-weight relationship and condition factor of
A. maculatus from Persian Gulf coastal waters. The specimens were collected on a monthly basis from April to March 2013. Overal 766 specimens were caught. Size and weight of collected fish ranged between 13/2-48 cm and 31.2-1820 gr. The Condition of the growth fish was allometrically negative with b value<3.0 (w=0/03L2/72) respectivly. Condition factor was estimated at 0.95. This study provides basic information for fishery biologists and managers.
Parisa Maleki, Rahman Patimar, Hojatallah Jafariyan, Rassul Ghorbani,
Volume 5, Issue 2 (Autumn 2015)
Abstract
The purpose of this study was to investigate the effect of voltage, salinity and temperature on the performance of electrofishing. Number 850 pcs Capoeta capoeta of Chehel Chay river of Golestan province fishing and transported to the laboratory. Distance from the anode, cathode and anode distance during testing, respectively, 10 cm and the 120 cm. Range of length and weight of the fish test species in order Capoeta capoeta 11.53± 0.61cm and 13.701± 5.303 gr. Electric shocks were applied to the individual fish on the three voltages of 15, 45 and 135 volts and three temperatures of 10° c, 20° c and 30° c and three salinities of 0.5, 2 and 4 gr/liter. Time to anesthesia and recovery were recorded for each fish. Statistical analysis using One-way Anova, Duncan and LSD test. Comparison showed that the average duration of anesthesia voltages and temperatures and the salinities are significantly different. Maximum anesthesia time for Capoeta capoeta abtain from the salinity 2 gr/liter, temperature 10° c, Voltage 15 volt with a mean (7.81±0.88 s) and minimum abtain from salinity4 gr/liter, temperature 20° c, voltage 135 volt, with mean (1.18± 0.09 s). Maximum of the recovery time to Capoeta capoeta abtain from Salinity 0.5 gr/liter, temperature 30° c, Voltage 135 volt with a mean (159.46± 16.17 s) show and minimum abtain from salinity 0.5 gr/liter, temperature 20° c, voltage 15 volt with a mean (44.29±9.11 s).
Hadiseh Kashiri, Ali Shabani, Zohreh Ghodsi,
Volume 5, Issue 3 (Winter 2016)
Abstract
Oxynoemacheilu sangorae is an endemic freshwater fish of Iran. In the present study, six microsatellite markers were used to investigate population structure of stone loach (Oxynoemacheilusangorae) in gheshlagh (Kurdistan), Sefidbarg and Gamasiab (Kermanshah) rivers. All of the applied loci showed polymorphism. The average numbers of allele and observed heterozygosity were 14.33 and 0.82 respectively, indicating proper allelic richness and genetic diversity of the species in studied regions. In studying deviation from Hardy-Weinberg equilibrium, 10 cases of 18 tests (3 populations in 6 loci) indicated significant deviation from the equilibrium. In this regard, significant heterozygosity deficiency was observed in some loci. In investigation of the indices of Fst (0.031) and Rst (0.04), low genetic differentiation was observed among the samples of investigated regions. Results from analysis of molecular variance indicated that most of the observed diversity was within populations. Also, the highest genetic distance was observed among Sefidbarg and Gamasiab. UPGMA dendrogram and genetic distance values showed that there are probably separate populations of Oxynoemacheilu sangoraein investigated regions.
Mohammad Hadi Abolhasani, Seyd Abbas Hosini, Rasool Ghorbani, Ordog Vince,
Volume 5, Issue 4 (Spring 2016)
Abstract
Nitrate and phosphate are abundant in urban wastewater. We evaluated the efficiency of nitrate and phosphate removal from wastewater by Scenedesmus obliquus and its use as a medium for Scenedesmus obliquus. Samples were collected from the effluent of central wastewater treatment in Gorgan. This experiment was done by 3 treatments and 6 replications that effluent with 100%, 50% and 0% were diluted. The results showed that Scenedesmus obliquus could be grown in wastewater and 100% phosphate (group S100) and 100% nitrate (all of group) was removed. The highest biomass production (0.6 g/L), chlorophyll a (4.87 mg/L), the number of cells (106 cells/ml) was observed in the S0 group. Statistical analysis of the data with analysis of variance (one-way ANOVA) and the Duncan test at a 5% level of significance (SAS software version 9.2) indicated that the algae could be used to remove phosphates, nitrate and algal biomass in municipal wastewater filtration systems before they enter the environment. The municipal wastewater can be used as culture medium for mass production of algae.
Rezvanollah Kazemi, Farzaneh Noori, Ali Bani, Ebrahim Hosaien Najdegerami, Mohammadali Yazdani Sadati,
Volume 5, Issue 4 (Spring 2016)
Abstract
The aim of this study was to assess the effect of different light intensities and photoperiods on growth, survival, and the yolk sac absorb of the Persian sturgeon, Acipenser persicus, larvae. Larvae were reared from hatching to yolk sac absorb (eight days) at four light intensities (0, 50, 150 and 300 lux) and three photoperiods (00L:24D, 12L:12D and 24L:00D) which consisted of seven treatments and a control group. Growth factors, including the length, weight, weight gain, specific growth rate condition factor, the percentage of body weight gain and survival rate were calculated in the larvae. The larvae showed significant growth and better yolk sac absorption at the high light intensity (300 lx) and 24L:00D photoperiod compared to the low light intensity (0 lux), continuous darkness photoperiod, and the control group. There were significantly higher survival rates for larval Persian sturgeon in the 50 lx and 12 h photoperiod and 0 lux and 24 h photoperiod (73.1±0.04 & 72.41±0.12% respectively) were compared to larvae reared in the 300 lux light intensity and 24 h photoperiod (47.06%) treatment until 8dph. There was no significant difference observed in the condition factor among different treatments. This study revealed that photoperiod and light intensity were important factors on growth - parameters, survival rate and yolk-sac absorption of the Persian sturgeon in the larval stage.
Roghieh Safari, Samira Moghadamfar, Mohammad Reza Imanpour, Ali Shabani, Ali Jafar Nodeh,
Volume 6, Issue 1 (Summer 2016)
Abstract
Iodine is the main ingredient produced by the thyroid hormone, which playa a central role in the metabolism and the immune system. The present study aims to evaluate the effects of feeding Artemia fransiscana enriched with potassium iodide on antioxidant and immune gene expression in zebra fish (Danio rerio). Zebra larvae with an average weight of 2±0.01 mg were randomly distributed into 4 treatments with 3 replicates. The treatments were larvae fed 0.2, 0.5 and 1 mg/L potassium iodide enriched Artemia for 2 months. Result showed that potassium iodide significantly (P≤0.05) increased antioxidant and immune gene expression in zebra fish and the intensity of changes followed a dose- dependent manner. The 1 mg/L potassium iodide treated fish showed the highest gene expression in all studied genes. Due to changes in the expression of immune and antioxidant related genes, it appeared that potassium iodide could improve immune and antioxidant function in zebrafish.
Habibollah Mohammadi, Sayed Yosef Paighambari, Shahram Abdolmaleki, Mariam Fallahi, Rasoul Ghorbani, Sayed Abbas Hosaini,
Volume 6, Issue 3 (winter 2016)
Abstract
Golbolagh Reservoir is located the east of Kurdistan province with 8.1 Million cubic meters' capacity. This study was conducted for one year to investigate the population structure, diversity and seasonal change of phytoplankton of Golbolagh Lake. Some physicochemical parameters of this water body at each sampling site were studied. In this study, 6 phylum, 22 families and 23 genus of phytoplankton were identified; 10 genus belonging to Bacillariophyta, 6 genus belonging to Chlorophyta, 4 genus belonging to Cyanophyta, 1 genus belonging to Euglenaophyta, one genus belonging to Crysophyta and one genus belonging to Dynophyta. The mean annual density of phytoplankton was 1662 (cell/ml). The average density of Bacillariophyta was 1196 per ml with 30 percent frequency, while average density of Euglenaophyta was 791 per ml with 2 percent frequency, respectively and the highest and lowest density and abundance of phytoplankton, they were allocated and were statistically significant compared to other branches (P <0/05). Margalef richness and Shannon-Wiener diversity indexes were calculated. The two index were compared between seasons sampling and between stations, with no observed significant difference between stations, however, there was a significant difference between seasons sampling (P <0/05).
Mehdi Dastbaz, Seyed Yousef Paighambari, Rasoul Ghorbani, Saeed Gorgin,
Volume 6, Issue 4 (Spring 2017)
Abstract
Gargoor, a wired traditional pot, is used to catch demersal fish on rocky substrates. The objective of this study was to investigate the effect of bait's type and shape on catching efficiency of Gargoors in Bandar Lengeh waters (Hormozgan). The study area was divided into near-shore waters (station 1) and off-shore waters (station 2). Sampling was performed by Seventy-two pots with the same soaking time (24 hours) during 48 cruises. Baits (Sardin, Cuttlefish, and Catfish) were cut into small pieces with similar weight (100 gr). Each bait was held in the cover (polyethylene net with 1 cm mesh size) and hanged inside the pots in two shapes (sliced and minced). Generally, the only bait type that had the significant difference between two shapes, was cuttlefish (p<0.05). Minced cuttlefish in the off-shore station in spring and sliced catfish in the near-shore station in summer had the highest and the lowest CPUE respectively. Based on our results, among the bait type, cuttlefish and between the bait shape, the minced shape had the best efficiency regarding the amount of catch. Therefore, to increase the amount of catch, using of minced cuttlefish is recommended.
Hasan Mohammadkhani, Zohreh Mazaheri Kohanestani, Rasoul Ghorbani,
Volume 7, Issue 1 (Summer 2017)
Abstract
This study was carried out to investigate the phytoplankton composition in Gorgan Bay. Water samples were collected from 11 selected sites in Golestan bay, monthly from March to February. Thirty five genus were identified among which Bacillariophyta was the dominate group with 17 genus, while the Euglenophyta had the minimum. Abundance and biomass of phytoplankton showed spatial and temporal variations in the Bay. After Bacillariophyta, Cyanophyta was the most dominant group in spring, summer and autumn, while the Pyrrophyta was the most dominant in winter. Moreover, the highest number were counted for Nitzschia sp and Gyrosigma sp in spring, Gyrosigma sp, Euglena sp and Anabaenopsis sp in summer, Anabaenopsis sp and Prorcentrum sp in autumn, and Cheatoceros sp and Cyclotella sp in winter. Maximum abundance and biomass were calculated for site 8 (near Khozeini Channel) and the minimum were in sites 1 and 3 (central part of the bay) respectively. The average values of Margalef, Simpson and Shannon-Wiener indices were 0.3±0.27, 0.37±0.25 and 1.22±0.75 respectively, indicating low diversity in Gorgan Bay. The maximum Margalef (0.99), Shannon-Wiener (2.77) and the minimum Simpson (0.07) indices were calculated in February. Results of RDA showed that water temperature, water depth, transparency, phosphate, nitrate, pH, total alkalinity and dissolved oxygen had significant, high correlation with abundances of different phytoplankton genus.
Mohammadreza Alimirzaei, Saeid Gorgin, Ehsan Kamrani, Rasoul Ghorbani,
Volume 7, Issue 1 (Summer 2017)
Abstract
The study was conducted to obtain some information about temporal and spatial variations of multifilament drift gillnet catch communities in coastal waters of Hormozgan Province (Persian Gulf) from October to March 2014. Totally, seven families were identified including Scombridae, Carangidae, Carcharhinidae, Sphyranidae, Stromatidae, Belonidae, and Pesttodidae with total biomass of 73.03%, 12.67%, 7.88%, 1.36%, 0.73%, 2.24% and 2.06%, respectively. Kawakawa (Euthynnus affinis) showed the highest percentage of total catch with the number and weight percentage of 33.26% and 27.9% respectively. The lowest percentage catch was Indian spiny turbot (Psettodes erumei) with 7% and Frigate tuna (Auxis thazard) with 5% of total catch. Simper analysis between autumn and winter showed that the species Kawakawa (E. affinis), Talang queen fish (Scomberoides commersonnianus), Indian mackerel (Rastrelliger kanagurta), Long tail tuna (Thunnus tonggol), Frigate tuna (Auxis thazard) and Silver pomfret (Pampus argenteus) were responsible for 81.67% of dissimilarity. Two species Kawakawa and Talang queen fish showed the highest dissimilarity.
