mohammad gerami | Gorgan University of Agricultural Science and Natural Resources (original) (raw)

Papers by mohammad gerami

Objective(s): This study aimed to determine the possible toxicity of Cuo nanoparticles (NPs) on O... more Objective(s): This study aimed to determine the possible toxicity of Cuo nanoparticles (NPs) on Oncorhynchus mykiss by evaluating hematological parameters. Materials and Methods: Fish were sampled and treated in 4 aquariums containing the concentration ranges of 1, 5, 20 and 100 ppm of CuO NPs. There was one control group (no CuO NPs) and three replicates. The physicochemical properties of water were as follows: the temperature was 22±2 Cº, oxygen saturation was 90.9±0.2%, pH was at 7±0.004 and the concentration of CaCO 3 was 270. Results: No mortality was observed after 96 hours of exposure. The analysis of hematological parameters showed that CuO NPs affected the counts of white blood cells, lymphocytes, eosinophils, neutrophils, hematocrits, MCH, MCHC and MCV and did not have any effects on monocytes and hemoglobins. Conclusion: The data showed that the overall hardness (270 ppm) neutralized the lethal effect of copper on O. mykiss and no mortality was recorded.

Proceedings of the National Academy of Sciences, India Section B: Biological Sciences, 2016

Fisheries and Aquaculture Journal, 2015

International Journal of Marine Science, Feb 4, 2015

Increasing efficiency of fishing is one of major goals of fisheries researchers. The aim of this ... more Increasing efficiency of fishing is one of major goals of fisheries researchers. The aim of this study was to evaluate the efficiency of gillnet with three different colors of green, blue and white, and three different mesh size 3.75, 6 and 10 cm (STR) in Khuzestan waters. Data were recorded from three fishing harbor Arvand, Choobedeh of Abadan and Khoramshahr during 2008-2009. Simpson diversity and economic diversity index were used to analyze data. Results showed that economical index of green net was more than the other colors. In addition, the efficiency of 10 cm (STR) mesh size was higher than two treatments. In conclusion, results demonstrated that using green net with 10 cm (STR) mesh size is more economical.

AFRICAN JOURNAL OF BIOTECHNOLOGY

Caspian roach (Rutilus rutilus caspicus Jakowlew, 1870) exposed to the fungicide hinosan Pesticid... more Caspian roach (Rutilus rutilus caspicus Jakowlew, 1870) exposed to the fungicide hinosan Pesticides are used in agriculture to control pest and protect human health and animals. Excessive use of pesticides caused risk for human health and threated non-target organisms, polluted water, soil and air. Hinosan is a component of organophosphate pesticide which is used as a fungicide in agricultural fields. In the study, lethal concentration (LC 50 ) of Hinosan was calculated for Rutilus frisii kutum and Rutilus rutilus caspicus with a mean weight of 3 ± 1 g [mean ± SD]. The experiment were carried out in static condition and based on instructions of O.E.C.D in four days under controlled water physicochemical factors with pH = 7 to 8.5, dissolved oxygen = 200 mg L -1 (CaCO 3 ) and temperature = 20 ± 1°C. Fishes were acclimatized in 70x40x30 cm aquarium for 10 days. Five treated aquariums with concentration ranges 1, 2, 4, 8, 16 ppm of hinosan (Technical 95 Edifenphos) with one control group (no toxic concentration), were performed. Data were analysed using the probit analysis. LC 1 , LC 10 , LC 30 , LC 50 , LC 70 , LC 90 and LC 99 were calculated in 24, 48, 72 and 96 h. Our results indicate that LC50 96 h hinosan for R. frisii Kutum and R. rutilus caspicus were obtained 3.61 and 2.88 ppm, respectively. These findings suggest that hinosan is medium toxicity for these two species. Clinical symptoms including irregular protrusion of the eyes and irregular swimming were observed.

Journal of Fisheries and Aquatic Science, 2015

‫ﭼﻜﻴﺪﻩ:‬ ‫ﺩﺳﺖ‬ ‫ﻫﺪﻑ‬ ‫ﺑﺎ‬ ‫ﭘﮋﻭﻫﺶ‬ ‫ﺍﻳﻦ‬ ‫ﻣﺎﻫﻲ‬ ‫ﻭﺯﻧﻲ‬ ‫ﻭ‬ ‫ﻃﻮﻟﻲ‬ ‫ﺧﺼﻮﺻﻴﺎﺕ‬ ‫ﺑﺮﺧﻲ‬ ‫ﺑﻪ‬ ‫ﻳﺎﺑﻲ‬ Par... more ‫ﭼﻜﻴﺪﻩ:‬ ‫ﺩﺳﺖ‬ ‫ﻫﺪﻑ‬ ‫ﺑﺎ‬ ‫ﭘﮋﻭﻫﺶ‬ ‫ﺍﻳﻦ‬ ‫ﻣﺎﻫﻲ‬ ‫ﻭﺯﻧﻲ‬ ‫ﻭ‬ ‫ﻃﻮﻟﻲ‬ ‫ﺧﺼﻮﺻﻴﺎﺕ‬ ‫ﺑﺮﺧﻲ‬ ‫ﺑﻪ‬ ‫ﻳﺎﺑﻲ‬ Paraschistura nielseni ‫ﻣﺎﻩ‬ ‫ﻣﺮﺩﺍﺩ‬ ‫ﺩﺭ‬ 1391 ‫ﺩﺭ‬ ‫ﺭﻭﺩﺧﺎﻧﻪ‬ ‫ﻫﺎﻱ‬ ‫ﺳﺮﭼﺸﻤﻪ‬ ‫ﺍﺯ‬ ‫ﻳﻜﻲ‬ ‫ﭼﻠﻮﺍﺭ،‬ ‫ﺳﺮﺷﺎﺧﻪ‬ ‫ﭘﺎﻳﺎﻥ‬ ‫ﺩﺭ‬ ‫ﺷﺪ.‬ ‫ﺭﻳﺰﻱ‬ ‫ﭘﻲ‬ ‫ﺧﻮﺯﺳﺘﺎﻥ‬ ‫ﺍﺳﺘﺎﻥ‬ ‫ﺩﺭ‬ ‫ﺷﻤﺎﻟﻲ‬ ‫ﻛﺎﺭﻭﻥ‬ ‫ﻱ‬ 85 ‫ﺍﺯ‬ ‫ﻧﻤﻮﻧﻪ‬ P. nielseni ‫ﻃﻮﻝ‬ ‫ﺭﻭﺍﺑﻂ‬ ‫ﻭ‬ ‫ﺷﺪ‬ ‫ﺑﻴﻮﻣﺘﺮﻱ‬ ‫ﻭ‬ ‫ﺻﻴﺪ‬ -‫ﻃﻮﻝ‬ ‫ﻃﻮﻝ،‬ -‫ﺑﻪ‬ ‫ﻛﻞ‬ ‫ﻃﻮﻝ‬ ‫ﺑﻪ‬ ‫ﻧﺴﺒﺖ‬ ‫ﮔﻨﺎﺩ‬ ‫ﻭﺯﻥ‬ ‫ﻭ‬ ‫ﻻﺷﻪ‬ ‫ﻭﺯﻥ‬ ‫ﺭﮔﺮﺳﻴﻮﻧﻲ‬ ‫ﺭﺍﺑﻄﻪ‬ ‫ﻭ‬ ‫ﻭﺯﻥ‬ ‫ﺭﺍﺑﻄﻪ‬ ‫ﺁﻣﺪ.‬ ‫ﺩﺳﺖ‬ ‫ﻃﻮﻝ‬ -‫ﻭﺯﻥ‬ TW = 2E-06TL3.304 ‫ﻧﺮ،‬ ‫ﺟﻨﺲ‬ ‫ﺑﺮﺍﻱ‬ TW = 2E-06TL3.353 ‫ﻭ‬ ‫ﻣﺎﺩﻩ‬ ‫ﺟﻨﺲ‬ ‫ﺑﺮﺍﻱ‬ TW = 2E-06TL3.326 ‫ﻃﻮﻝ‬ ‫ﺭﺍﺑﻄﻪ‬ ‫ﻫﻤﭽﻨﻴﻦ‬ ‫ﺷﺪ.‬ ‫ﺯﺩﻩ‬ ‫ﺗﺨﻤﻴﻦ‬ ‫ﺩﻭﺟﻨﺲ‬ ‫ﺗﺮﻛﻴﺐ‬ ‫ﺑﺮﺍﻱ‬ -‫ﺑﻪ‬ ‫ﺩﻭﺟﻨﺲ‬ ‫ﺗﺮﻛﻴﺐ‬ ‫ﻭ‬ ‫ﻣﺎﺩﻩ‬ ‫ﻧﺮ،‬ ‫ﺟﻨﺲ‬ ‫ﺑﺮﺍﻱ‬ ‫ﻃﻮﻝ‬ ‫ﺗﺮﺗﻴﺐ‬ SL = 0.941TL -2.747 ، SL = 1.002TL -5.578 ‫ﻭ‬ SL = 0.976TL -4.379 ‫ﻣﺤﺎﺳﺒﻪ‬ ‫ﻣﺘﻐﻴﺮﻩ‬ ‫ﭼﻨﺪ‬ ‫ﺷﺪ.ﺁﻧﺎﻟﻴﺰ‬ ‫ﮔﻨﺎﺩ‬ ‫ﻭﺯﻥ‬ ‫ﻭ‬ ‫ﺍﺳﺖ‬ ‫ﻣﻮﺟﻮﺩ‬ ‫ﻻﺷﻪ‬ ‫ﻭﺯﻥ‬ ‫ﻭ‬ ‫ﻛﻞ‬ ‫ﻭﺯﻥ‬ ‫ﻣﻴﺎﻥ‬ ‫ﻓﻘﻂ‬ ‫ﺩﺍﺭ‬ ‫ﻣﻌﻨﻲ‬ ‫ﺍﺭﺗﺒﺎﻁ‬ ‫ﻛﻞ،‬ ‫ﻭﺯﻥ‬ ‫ﺑﻪ‬ ‫ﻧﺴﺒﺖ‬ ‫ﮔﻨﺎﺩ‬ ‫ﻭﺯﻥ‬ ‫ﻭ‬ ‫ﻻﺷﻪ‬ ‫ﻭﺯﻥ‬ ‫ﺑﻴﻦ‬ ‫ﺩﺭ‬ ‫ﺩﺍﺩ‬ ‫ﻧﺸﺎﻥ‬ ‫ﺍﺳﺖ.‬ ‫ﺑﺮﺧﻮﺭﺩﺍﺭ‬ ‫ﺭﻭﺩﺧﺎﻧﻪ‬ ‫ﺍﻳﻦ‬ ‫ﺩﺭ‬ ‫ﻣﺜﺒﺖ‬ ‫ﺁﻟﻮﻣﺘﺮﻳﻚ‬ ‫ﺭﺷﺪ‬ ‫ﺍﺯ‬ ‫ﮔﻮﻧﻪ‬ ‫ﺍﻳﻦ‬ ‫ﻫﻤﭽﻨﻴﻦ‬ ‫ﻧﺪﺍﺭﺩ.‬ ‫ﻛﻞ‬ ‫ﻭﺯﻥ‬ ‫ﺑﺎ‬ ‫ﺩﺍﺭﻱ‬ ‫ﻣﻌﻨﻲ‬ ‫ﺍﺭﺗﺒﺎﻁ‬ ‫ﻛ‬ ‫ﻠﻴﺪﻭﺍژﻩ‬ ‫ﻫﺎ‬ : ‫ﺭﺍﺑﻄﻪ‬ ‫ﻃﻮﻝ‬ -‫ﻃﻮﻝ‬ ‫ﺭﺍﺑﻄﻪ‬ ‫ﻃﻮﻝ،‬ -‫ﭼﻠﻮﺍﺭ‬ ‫ﺭﻭﺩﺧﺎﻧﻪ‬ ‫ﮔﻨﺎﺩ،‬ ‫ﻭﺯﻥ‬ ‫ﻻﺷﻪ،‬ ‫ﻭﺯﻥ‬ ‫ﻭﺯﻥ،‬ Abstract:

Herbicides are used to control weeds and are usually targeted to processes and target sites that ... more Herbicides are used to control weeds and are usually targeted to processes and target sites that are specific to plants. Butachlor is an herbicide of the acetanilide class, which is used widely in agricultural fields. At the present study, lethal concentration (LC 50) of butachlor was calculated for Rutilus frisii Kutum. Samples weighted 4 ± 1 [mean ± SD] gr. The experiment were carried out in static condition and based on instructions of Organisation for Economic Co-operation and Development (O.E.C.D) in 4 days under controlled water physicochemical factors with pH was 8-8.3, BOD 690 mg/l total hardness 210 mgCaCo 3 and temperature was 17 ± 0.1 °C. All fishes were acclimatized in 60×55×30 cm aquarium for 10 days. Treated aquariums with concentration ranges 0.11, 0.22, 0.33, 1, 1.66, 2.33, 3.33, 6.66, 13.33, 16.66 mg/l of butachlor and control group (no toxic concentration) were performed. LC 1 , LC 10 , LC 30 , LC 50 , LC 70 , LC 90 and LC 99 were calculated for 24, 48, 72 and 96 h...

This study conducted to achieve Length-Length and Length-Weight relationships and Condition Facto... more This study conducted to achieve Length-Length and Length-Weight relationships and Condition Factor of Garra rufa in Cholvar River in Iran. 535 Samples were collected during June 2011 to August 2011 by beach seine with 5-milimeter mesh size. Length-weight relationship was W = 5E-06TL for males, 3.225 W = 6E-06TL for females and W = 5E-06TL for both sexes. Also L-L relationship was SL = 0.728TL 3.156 3.196 1.030 for both sexes, SL = 0.715TL for females and SL = 0.765TL for males.. Statistical ’t’ test showed that the 1.034 1.018 value of (b) estimated, significantly vary from 3. Condition Factor for Garra rufashowed that this species is not in welfare condition in Cholvar River.

This study was conducted to achieve Length-Weight relationship of Carasobarbus luteus in Cholvar ... more This study was conducted to achieve Length-Weight relationship of Carasobarbus luteus in Cholvar River, Khuzestan Province, Iran. Some 85 specimens were measured. Analyses of length and weight showed that there was a high correlation between length and weight for this species. LW relationship for this species was calculated as TW= 3E-06TL3.226, TW = 6E-06TW3.102 and TW = 5E-06TL3.147 for males, females and both sexes, respectively. Condition factor was computed as 0.53±0.011 for males, 0.74±0.008, for females and 0.65±0.0075 for combination of sexes. The maximum length frequency belonged to 91-100mm length class. In addition, statistical t-test showed that all b values were significantly different from the expected b=3 value and this species had a positive allometric growth in this river.

Monthly sampling data of Metapenaeus affinis was analyzed to determine the age, growth and mortal... more Monthly sampling data of Metapenaeus affinis was analyzed to determine the age, growth and mortality rates form January 2010 to February 2011. The asymptotic total Carapace length was estimated to be 35mm for males and 47mm for females. The growth parameter K was calculated 1.1 Y -1 for females and 1.2 Y -1 for males while C. The total mortality rate, natural mortality rate and fishing mortality rate was estimated (4.04, 1.95908 and 2.08) for males and (4.93, 1.74954 and 3.18) for females, respectively. Furthermore, the exploitation rate was 0.51 for males and 0.64 for females. Maximum age was 16-17 months and 15-16 months for females and males, respectively. According to the results, Metapenaeuss affinis growth is rapid from summer to autumn and slight from winter to spring. Natural mortality in males and females were close together but males were more vulnerable to fishing from females. A result showed M.affinin was overexploited in Hormozgan fishing grounds. Fishing effort of M.a...

One of the most important methods for evaluating changes in an ecosystems is studying the biodive... more One of the most important methods for evaluating changes in an ecosystems is studying the biodiversity changes. This study sought to examine the changes of biodiversity in two different fishing grounds of the Persian Gulf. For this purpose, two fishing grounds were selected, Abumusa, Tonb and Siri as subarea 1, and Kish westward as subarea 2. The catching data were obtained from two fishing vessels in January 2010 and July 2011. To evaluate changes in diversity of the populations, Simpson index, economic diversity index, Shannon index and the Hill index were used. The species diversity in subarea 1 was higher than that in subarea 2. The percentage of total frequency was higher for Tunnus tonggol (53.34 and 37.64) and Euthynnus affinis (40.76 and 27.34) in both subareas. However, the economic diversification index was higher in subarea 2 and the evenness index was higher in subarea 1.

This study aimed to investigate the spawning season, length at first maturity (LM50) and sex rati... more This study aimed to investigate the spawning season, length at first maturity (LM50) and sex ratio of Metapenaeus affinis in the shrimp fishing grounds of Hormozgan Province, west of the Persian Gulf, Iran. Samples were taken by the swept area method and trawl net with 2 cm mesh size in the cod end from January 2010 to February 2011. Results showed that the sex ratio deviated from 1:1 and female's number were significantly higher than males. Metapenaeus affinis females had continuous spawning in all seasons but the peak spawning season was found in spring, and stage 3 of maturity was observed in all seasons. Length at maturity (LM50) for females was estimated at 27.12 mm based on carapace length. Our finding showed that LM50 of M. affinis do not change with sex ratio deviates from equal ratio.

The Islamic Republic Iran is located in western Asia with area 1 648 000 km and have a 2700 km of... more The Islamic Republic Iran is located in western Asia with area 1 648 000 km and have a 2700 km of 2 continentalcoastline. Due to this continental coastline, Iran is considered the biggest fishing nation in the region. There are several commercials fishing methods in Iran like Trawl fisheries, Purse seine fisheries, Gillnet fisheriesand coastline fisheries. In this paper, we tried to introduce and eeplain all the commercials fishing in Iran.Certainly, there are many fishing methods in Iran, but all of them are not commercial and used by fishing fleets

International Journal of Marine Science, 2015

Increasing efficiency of fishing is one of major goals of fisheries researchers. The aim of this ... more Increasing efficiency of fishing is one of major goals of fisheries researchers. The aim of this study was to evaluate the efficiency of gillnet with three different colors of green, blue and white, and three different mesh size 3.75, 6 and 10 cm (STR) in Khuzestan waters. Data were recorded from three fishing harbor Arvand, Choobedeh of Abadan and Khoramshahr during 2008-2009. Simpson diversity and economic diversity index were used to analyze data. Results showed that economical index of green net was more than the other colors. In addition, the efficiency of 10 cm (STR) mesh size was higher than two treatments. In conclusion, results demonstrated that using green net with 10 cm (STR) mesh size is more economical.

Background: Pesticides are widely used in agriculture. Excessive use of pesticides has health ris... more Background: Pesticides are widely used in agriculture. Excessive use of pesticides has health risk for human and threatens non-target organisms. This research aimed to determine lethal concentrations of malathion and Hinosan for Carassius auratus (5±1 gr) [mean ± SD].

Journal of Applied Ichthyology, 2014

This study provides the first report of length-weight relationships (LWRs) for two fish species, ... more This study provides the first report of length-weight relationships (LWRs) for two fish species, Glyptothorax kashmirensis and Crossocheilus diplochilus, collected from the Poonch River, one of the lesser tributaries to the Indus basin in India. New maximum length records are reported for both species. a Anti-log a. b Bold letters indicate new maximum lengths against FishBase.

Copper is a very common element in water resources. For this reason, concerns about the risks and... more Copper is a very common element in water resources. For this reason, concerns about the risks and consequences of this element in water contamination are arising. The purpose of this study was to investigate the effects of water-born CuO (Copper (II) oxide) on the rainbow trout, Oncorhynchus mykiss gill tissue to establish a suitable biomarker for copper in water resources. Samples with 18±3g body weight were exposed to CuO for a week with 0.0125, 0.037, 0.075, and 0.15 ppm of copper sulfate and a control group (without CuO). Physicochemical properties of water were 15±2ºC, pH 7-8, Caco3 270mg/l and oxygen saturation 90.9±0.2%. At the end of 7 days, 9 fish were caught randomly from each treatment and second gill from left side of fish were removed for histological study. Hyperplasia, oedema, epithelial lifting in secondary lamella and lamellar aneurysm were observed in gill tissues, showing that CuO, as a copper ion, has significant adverse effects on gill tissues of rainbow trout and gills can be a suitable biomarker for copper in water resources.

Objective(s): This study aimed to determine the possible toxicity of Cuo nanoparticles (NPs) on O... more Objective(s): This study aimed to determine the possible toxicity of Cuo nanoparticles (NPs)
on Oncorhynchus mykiss by evaluating hematological parameters.
Materials and Methods: Fish were sampled and treated in 4 aquariums containing the
concentration ranges of 1, 5, 20 and 100 ppm of CuO NPs. There was one control group (no
CuO NPs) and three replicates. The physicochemical properties of water were as follows: the
temperature was 22±2 Cº, oxygen saturation was 90.9±0.2%, pH was at 7±0.004 and the
concentration of CaCO3 was 270.
Results: No mortality was observed after 96 hours of exposure. The analysis of
hematological parameters showed that CuO NPs affected the counts of white blood cells,
lymphocytes, eosinophils, neutrophils, hematocrits, MCH, MCHC and MCV and did not
have any effects on monocytes and hemoglobins.
Conclusion: The data showed that the overall hardness (270 ppm) neutralized the lethal
effect of copper on O. mykiss and no mortality was recorded.

Objective(s): This study aimed to determine the possible toxicity of Cuo nanoparticles (NPs) on O... more Objective(s): This study aimed to determine the possible toxicity of Cuo nanoparticles (NPs) on Oncorhynchus mykiss by evaluating hematological parameters. Materials and Methods: Fish were sampled and treated in 4 aquariums containing the concentration ranges of 1, 5, 20 and 100 ppm of CuO NPs. There was one control group (no CuO NPs) and three replicates. The physicochemical properties of water were as follows: the temperature was 22±2 Cº, oxygen saturation was 90.9±0.2%, pH was at 7±0.004 and the concentration of CaCO 3 was 270. Results: No mortality was observed after 96 hours of exposure. The analysis of hematological parameters showed that CuO NPs affected the counts of white blood cells, lymphocytes, eosinophils, neutrophils, hematocrits, MCH, MCHC and MCV and did not have any effects on monocytes and hemoglobins. Conclusion: The data showed that the overall hardness (270 ppm) neutralized the lethal effect of copper on O. mykiss and no mortality was recorded.

Proceedings of the National Academy of Sciences, India Section B: Biological Sciences, 2016

Fisheries and Aquaculture Journal, 2015

International Journal of Marine Science, Feb 4, 2015

Increasing efficiency of fishing is one of major goals of fisheries researchers. The aim of this ... more Increasing efficiency of fishing is one of major goals of fisheries researchers. The aim of this study was to evaluate the efficiency of gillnet with three different colors of green, blue and white, and three different mesh size 3.75, 6 and 10 cm (STR) in Khuzestan waters. Data were recorded from three fishing harbor Arvand, Choobedeh of Abadan and Khoramshahr during 2008-2009. Simpson diversity and economic diversity index were used to analyze data. Results showed that economical index of green net was more than the other colors. In addition, the efficiency of 10 cm (STR) mesh size was higher than two treatments. In conclusion, results demonstrated that using green net with 10 cm (STR) mesh size is more economical.

AFRICAN JOURNAL OF BIOTECHNOLOGY

Caspian roach (Rutilus rutilus caspicus Jakowlew, 1870) exposed to the fungicide hinosan Pesticid... more Caspian roach (Rutilus rutilus caspicus Jakowlew, 1870) exposed to the fungicide hinosan Pesticides are used in agriculture to control pest and protect human health and animals. Excessive use of pesticides caused risk for human health and threated non-target organisms, polluted water, soil and air. Hinosan is a component of organophosphate pesticide which is used as a fungicide in agricultural fields. In the study, lethal concentration (LC 50 ) of Hinosan was calculated for Rutilus frisii kutum and Rutilus rutilus caspicus with a mean weight of 3 ± 1 g [mean ± SD]. The experiment were carried out in static condition and based on instructions of O.E.C.D in four days under controlled water physicochemical factors with pH = 7 to 8.5, dissolved oxygen = 200 mg L -1 (CaCO 3 ) and temperature = 20 ± 1°C. Fishes were acclimatized in 70x40x30 cm aquarium for 10 days. Five treated aquariums with concentration ranges 1, 2, 4, 8, 16 ppm of hinosan (Technical 95 Edifenphos) with one control group (no toxic concentration), were performed. Data were analysed using the probit analysis. LC 1 , LC 10 , LC 30 , LC 50 , LC 70 , LC 90 and LC 99 were calculated in 24, 48, 72 and 96 h. Our results indicate that LC50 96 h hinosan for R. frisii Kutum and R. rutilus caspicus were obtained 3.61 and 2.88 ppm, respectively. These findings suggest that hinosan is medium toxicity for these two species. Clinical symptoms including irregular protrusion of the eyes and irregular swimming were observed.

Journal of Fisheries and Aquatic Science, 2015

‫ﭼﻜﻴﺪﻩ:‬ ‫ﺩﺳﺖ‬ ‫ﻫﺪﻑ‬ ‫ﺑﺎ‬ ‫ﭘﮋﻭﻫﺶ‬ ‫ﺍﻳﻦ‬ ‫ﻣﺎﻫﻲ‬ ‫ﻭﺯﻧﻲ‬ ‫ﻭ‬ ‫ﻃﻮﻟﻲ‬ ‫ﺧﺼﻮﺻﻴﺎﺕ‬ ‫ﺑﺮﺧﻲ‬ ‫ﺑﻪ‬ ‫ﻳﺎﺑﻲ‬ Par... more ‫ﭼﻜﻴﺪﻩ:‬ ‫ﺩﺳﺖ‬ ‫ﻫﺪﻑ‬ ‫ﺑﺎ‬ ‫ﭘﮋﻭﻫﺶ‬ ‫ﺍﻳﻦ‬ ‫ﻣﺎﻫﻲ‬ ‫ﻭﺯﻧﻲ‬ ‫ﻭ‬ ‫ﻃﻮﻟﻲ‬ ‫ﺧﺼﻮﺻﻴﺎﺕ‬ ‫ﺑﺮﺧﻲ‬ ‫ﺑﻪ‬ ‫ﻳﺎﺑﻲ‬ Paraschistura nielseni ‫ﻣﺎﻩ‬ ‫ﻣﺮﺩﺍﺩ‬ ‫ﺩﺭ‬ 1391 ‫ﺩﺭ‬ ‫ﺭﻭﺩﺧﺎﻧﻪ‬ ‫ﻫﺎﻱ‬ ‫ﺳﺮﭼﺸﻤﻪ‬ ‫ﺍﺯ‬ ‫ﻳﻜﻲ‬ ‫ﭼﻠﻮﺍﺭ،‬ ‫ﺳﺮﺷﺎﺧﻪ‬ ‫ﭘﺎﻳﺎﻥ‬ ‫ﺩﺭ‬ ‫ﺷﺪ.‬ ‫ﺭﻳﺰﻱ‬ ‫ﭘﻲ‬ ‫ﺧﻮﺯﺳﺘﺎﻥ‬ ‫ﺍﺳﺘﺎﻥ‬ ‫ﺩﺭ‬ ‫ﺷﻤﺎﻟﻲ‬ ‫ﻛﺎﺭﻭﻥ‬ ‫ﻱ‬ 85 ‫ﺍﺯ‬ ‫ﻧﻤﻮﻧﻪ‬ P. nielseni ‫ﻃﻮﻝ‬ ‫ﺭﻭﺍﺑﻂ‬ ‫ﻭ‬ ‫ﺷﺪ‬ ‫ﺑﻴﻮﻣﺘﺮﻱ‬ ‫ﻭ‬ ‫ﺻﻴﺪ‬ -‫ﻃﻮﻝ‬ ‫ﻃﻮﻝ،‬ -‫ﺑﻪ‬ ‫ﻛﻞ‬ ‫ﻃﻮﻝ‬ ‫ﺑﻪ‬ ‫ﻧﺴﺒﺖ‬ ‫ﮔﻨﺎﺩ‬ ‫ﻭﺯﻥ‬ ‫ﻭ‬ ‫ﻻﺷﻪ‬ ‫ﻭﺯﻥ‬ ‫ﺭﮔﺮﺳﻴﻮﻧﻲ‬ ‫ﺭﺍﺑﻄﻪ‬ ‫ﻭ‬ ‫ﻭﺯﻥ‬ ‫ﺭﺍﺑﻄﻪ‬ ‫ﺁﻣﺪ.‬ ‫ﺩﺳﺖ‬ ‫ﻃﻮﻝ‬ -‫ﻭﺯﻥ‬ TW = 2E-06TL3.304 ‫ﻧﺮ،‬ ‫ﺟﻨﺲ‬ ‫ﺑﺮﺍﻱ‬ TW = 2E-06TL3.353 ‫ﻭ‬ ‫ﻣﺎﺩﻩ‬ ‫ﺟﻨﺲ‬ ‫ﺑﺮﺍﻱ‬ TW = 2E-06TL3.326 ‫ﻃﻮﻝ‬ ‫ﺭﺍﺑﻄﻪ‬ ‫ﻫﻤﭽﻨﻴﻦ‬ ‫ﺷﺪ.‬ ‫ﺯﺩﻩ‬ ‫ﺗﺨﻤﻴﻦ‬ ‫ﺩﻭﺟﻨﺲ‬ ‫ﺗﺮﻛﻴﺐ‬ ‫ﺑﺮﺍﻱ‬ -‫ﺑﻪ‬ ‫ﺩﻭﺟﻨﺲ‬ ‫ﺗﺮﻛﻴﺐ‬ ‫ﻭ‬ ‫ﻣﺎﺩﻩ‬ ‫ﻧﺮ،‬ ‫ﺟﻨﺲ‬ ‫ﺑﺮﺍﻱ‬ ‫ﻃﻮﻝ‬ ‫ﺗﺮﺗﻴﺐ‬ SL = 0.941TL -2.747 ، SL = 1.002TL -5.578 ‫ﻭ‬ SL = 0.976TL -4.379 ‫ﻣﺤﺎﺳﺒﻪ‬ ‫ﻣﺘﻐﻴﺮﻩ‬ ‫ﭼﻨﺪ‬ ‫ﺷﺪ.ﺁﻧﺎﻟﻴﺰ‬ ‫ﮔﻨﺎﺩ‬ ‫ﻭﺯﻥ‬ ‫ﻭ‬ ‫ﺍﺳﺖ‬ ‫ﻣﻮﺟﻮﺩ‬ ‫ﻻﺷﻪ‬ ‫ﻭﺯﻥ‬ ‫ﻭ‬ ‫ﻛﻞ‬ ‫ﻭﺯﻥ‬ ‫ﻣﻴﺎﻥ‬ ‫ﻓﻘﻂ‬ ‫ﺩﺍﺭ‬ ‫ﻣﻌﻨﻲ‬ ‫ﺍﺭﺗﺒﺎﻁ‬ ‫ﻛﻞ،‬ ‫ﻭﺯﻥ‬ ‫ﺑﻪ‬ ‫ﻧﺴﺒﺖ‬ ‫ﮔﻨﺎﺩ‬ ‫ﻭﺯﻥ‬ ‫ﻭ‬ ‫ﻻﺷﻪ‬ ‫ﻭﺯﻥ‬ ‫ﺑﻴﻦ‬ ‫ﺩﺭ‬ ‫ﺩﺍﺩ‬ ‫ﻧﺸﺎﻥ‬ ‫ﺍﺳﺖ.‬ ‫ﺑﺮﺧﻮﺭﺩﺍﺭ‬ ‫ﺭﻭﺩﺧﺎﻧﻪ‬ ‫ﺍﻳﻦ‬ ‫ﺩﺭ‬ ‫ﻣﺜﺒﺖ‬ ‫ﺁﻟﻮﻣﺘﺮﻳﻚ‬ ‫ﺭﺷﺪ‬ ‫ﺍﺯ‬ ‫ﮔﻮﻧﻪ‬ ‫ﺍﻳﻦ‬ ‫ﻫﻤﭽﻨﻴﻦ‬ ‫ﻧﺪﺍﺭﺩ.‬ ‫ﻛﻞ‬ ‫ﻭﺯﻥ‬ ‫ﺑﺎ‬ ‫ﺩﺍﺭﻱ‬ ‫ﻣﻌﻨﻲ‬ ‫ﺍﺭﺗﺒﺎﻁ‬ ‫ﻛ‬ ‫ﻠﻴﺪﻭﺍژﻩ‬ ‫ﻫﺎ‬ : ‫ﺭﺍﺑﻄﻪ‬ ‫ﻃﻮﻝ‬ -‫ﻃﻮﻝ‬ ‫ﺭﺍﺑﻄﻪ‬ ‫ﻃﻮﻝ،‬ -‫ﭼﻠﻮﺍﺭ‬ ‫ﺭﻭﺩﺧﺎﻧﻪ‬ ‫ﮔﻨﺎﺩ،‬ ‫ﻭﺯﻥ‬ ‫ﻻﺷﻪ،‬ ‫ﻭﺯﻥ‬ ‫ﻭﺯﻥ،‬ Abstract:

Herbicides are used to control weeds and are usually targeted to processes and target sites that ... more Herbicides are used to control weeds and are usually targeted to processes and target sites that are specific to plants. Butachlor is an herbicide of the acetanilide class, which is used widely in agricultural fields. At the present study, lethal concentration (LC 50) of butachlor was calculated for Rutilus frisii Kutum. Samples weighted 4 ± 1 [mean ± SD] gr. The experiment were carried out in static condition and based on instructions of Organisation for Economic Co-operation and Development (O.E.C.D) in 4 days under controlled water physicochemical factors with pH was 8-8.3, BOD 690 mg/l total hardness 210 mgCaCo 3 and temperature was 17 ± 0.1 °C. All fishes were acclimatized in 60×55×30 cm aquarium for 10 days. Treated aquariums with concentration ranges 0.11, 0.22, 0.33, 1, 1.66, 2.33, 3.33, 6.66, 13.33, 16.66 mg/l of butachlor and control group (no toxic concentration) were performed. LC 1 , LC 10 , LC 30 , LC 50 , LC 70 , LC 90 and LC 99 were calculated for 24, 48, 72 and 96 h...

This study conducted to achieve Length-Length and Length-Weight relationships and Condition Facto... more This study conducted to achieve Length-Length and Length-Weight relationships and Condition Factor of Garra rufa in Cholvar River in Iran. 535 Samples were collected during June 2011 to August 2011 by beach seine with 5-milimeter mesh size. Length-weight relationship was W = 5E-06TL for males, 3.225 W = 6E-06TL for females and W = 5E-06TL for both sexes. Also L-L relationship was SL = 0.728TL 3.156 3.196 1.030 for both sexes, SL = 0.715TL for females and SL = 0.765TL for males.. Statistical ’t’ test showed that the 1.034 1.018 value of (b) estimated, significantly vary from 3. Condition Factor for Garra rufashowed that this species is not in welfare condition in Cholvar River.

This study was conducted to achieve Length-Weight relationship of Carasobarbus luteus in Cholvar ... more This study was conducted to achieve Length-Weight relationship of Carasobarbus luteus in Cholvar River, Khuzestan Province, Iran. Some 85 specimens were measured. Analyses of length and weight showed that there was a high correlation between length and weight for this species. LW relationship for this species was calculated as TW= 3E-06TL3.226, TW = 6E-06TW3.102 and TW = 5E-06TL3.147 for males, females and both sexes, respectively. Condition factor was computed as 0.53±0.011 for males, 0.74±0.008, for females and 0.65±0.0075 for combination of sexes. The maximum length frequency belonged to 91-100mm length class. In addition, statistical t-test showed that all b values were significantly different from the expected b=3 value and this species had a positive allometric growth in this river.

Monthly sampling data of Metapenaeus affinis was analyzed to determine the age, growth and mortal... more Monthly sampling data of Metapenaeus affinis was analyzed to determine the age, growth and mortality rates form January 2010 to February 2011. The asymptotic total Carapace length was estimated to be 35mm for males and 47mm for females. The growth parameter K was calculated 1.1 Y -1 for females and 1.2 Y -1 for males while C. The total mortality rate, natural mortality rate and fishing mortality rate was estimated (4.04, 1.95908 and 2.08) for males and (4.93, 1.74954 and 3.18) for females, respectively. Furthermore, the exploitation rate was 0.51 for males and 0.64 for females. Maximum age was 16-17 months and 15-16 months for females and males, respectively. According to the results, Metapenaeuss affinis growth is rapid from summer to autumn and slight from winter to spring. Natural mortality in males and females were close together but males were more vulnerable to fishing from females. A result showed M.affinin was overexploited in Hormozgan fishing grounds. Fishing effort of M.a...

One of the most important methods for evaluating changes in an ecosystems is studying the biodive... more One of the most important methods for evaluating changes in an ecosystems is studying the biodiversity changes. This study sought to examine the changes of biodiversity in two different fishing grounds of the Persian Gulf. For this purpose, two fishing grounds were selected, Abumusa, Tonb and Siri as subarea 1, and Kish westward as subarea 2. The catching data were obtained from two fishing vessels in January 2010 and July 2011. To evaluate changes in diversity of the populations, Simpson index, economic diversity index, Shannon index and the Hill index were used. The species diversity in subarea 1 was higher than that in subarea 2. The percentage of total frequency was higher for Tunnus tonggol (53.34 and 37.64) and Euthynnus affinis (40.76 and 27.34) in both subareas. However, the economic diversification index was higher in subarea 2 and the evenness index was higher in subarea 1.

This study aimed to investigate the spawning season, length at first maturity (LM50) and sex rati... more This study aimed to investigate the spawning season, length at first maturity (LM50) and sex ratio of Metapenaeus affinis in the shrimp fishing grounds of Hormozgan Province, west of the Persian Gulf, Iran. Samples were taken by the swept area method and trawl net with 2 cm mesh size in the cod end from January 2010 to February 2011. Results showed that the sex ratio deviated from 1:1 and female's number were significantly higher than males. Metapenaeus affinis females had continuous spawning in all seasons but the peak spawning season was found in spring, and stage 3 of maturity was observed in all seasons. Length at maturity (LM50) for females was estimated at 27.12 mm based on carapace length. Our finding showed that LM50 of M. affinis do not change with sex ratio deviates from equal ratio.

The Islamic Republic Iran is located in western Asia with area 1 648 000 km and have a 2700 km of... more The Islamic Republic Iran is located in western Asia with area 1 648 000 km and have a 2700 km of 2 continentalcoastline. Due to this continental coastline, Iran is considered the biggest fishing nation in the region. There are several commercials fishing methods in Iran like Trawl fisheries, Purse seine fisheries, Gillnet fisheriesand coastline fisheries. In this paper, we tried to introduce and eeplain all the commercials fishing in Iran.Certainly, there are many fishing methods in Iran, but all of them are not commercial and used by fishing fleets

International Journal of Marine Science, 2015

Increasing efficiency of fishing is one of major goals of fisheries researchers. The aim of this ... more Increasing efficiency of fishing is one of major goals of fisheries researchers. The aim of this study was to evaluate the efficiency of gillnet with three different colors of green, blue and white, and three different mesh size 3.75, 6 and 10 cm (STR) in Khuzestan waters. Data were recorded from three fishing harbor Arvand, Choobedeh of Abadan and Khoramshahr during 2008-2009. Simpson diversity and economic diversity index were used to analyze data. Results showed that economical index of green net was more than the other colors. In addition, the efficiency of 10 cm (STR) mesh size was higher than two treatments. In conclusion, results demonstrated that using green net with 10 cm (STR) mesh size is more economical.

Background: Pesticides are widely used in agriculture. Excessive use of pesticides has health ris... more Background: Pesticides are widely used in agriculture. Excessive use of pesticides has health risk for human and threatens non-target organisms. This research aimed to determine lethal concentrations of malathion and Hinosan for Carassius auratus (5±1 gr) [mean ± SD].

Journal of Applied Ichthyology, 2014

This study provides the first report of length-weight relationships (LWRs) for two fish species, ... more This study provides the first report of length-weight relationships (LWRs) for two fish species, Glyptothorax kashmirensis and Crossocheilus diplochilus, collected from the Poonch River, one of the lesser tributaries to the Indus basin in India. New maximum length records are reported for both species. a Anti-log a. b Bold letters indicate new maximum lengths against FishBase.

Copper is a very common element in water resources. For this reason, concerns about the risks and... more Copper is a very common element in water resources. For this reason, concerns about the risks and consequences of this element in water contamination are arising. The purpose of this study was to investigate the effects of water-born CuO (Copper (II) oxide) on the rainbow trout, Oncorhynchus mykiss gill tissue to establish a suitable biomarker for copper in water resources. Samples with 18±3g body weight were exposed to CuO for a week with 0.0125, 0.037, 0.075, and 0.15 ppm of copper sulfate and a control group (without CuO). Physicochemical properties of water were 15±2ºC, pH 7-8, Caco3 270mg/l and oxygen saturation 90.9±0.2%. At the end of 7 days, 9 fish were caught randomly from each treatment and second gill from left side of fish were removed for histological study. Hyperplasia, oedema, epithelial lifting in secondary lamella and lamellar aneurysm were observed in gill tissues, showing that CuO, as a copper ion, has significant adverse effects on gill tissues of rainbow trout and gills can be a suitable biomarker for copper in water resources.

Objective(s): This study aimed to determine the possible toxicity of Cuo nanoparticles (NPs) on O... more Objective(s): This study aimed to determine the possible toxicity of Cuo nanoparticles (NPs)
on Oncorhynchus mykiss by evaluating hematological parameters.
Materials and Methods: Fish were sampled and treated in 4 aquariums containing the
concentration ranges of 1, 5, 20 and 100 ppm of CuO NPs. There was one control group (no
CuO NPs) and three replicates. The physicochemical properties of water were as follows: the
temperature was 22±2 Cº, oxygen saturation was 90.9±0.2%, pH was at 7±0.004 and the
concentration of CaCO3 was 270.
Results: No mortality was observed after 96 hours of exposure. The analysis of
hematological parameters showed that CuO NPs affected the counts of white blood cells,
lymphocytes, eosinophils, neutrophils, hematocrits, MCH, MCHC and MCV and did not
have any effects on monocytes and hemoglobins.
Conclusion: The data showed that the overall hardness (270 ppm) neutralized the lethal
effect of copper on O. mykiss and no mortality was recorded.