List of Articles Crustacean

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  1 - The Effect of Sowbug (Hemilepistus shirazi Schuttz) on Soil Infiltrability in a Floodwater Spreading Systems of Gareh Baygone Plain
  Gholamreza Rahbar Ataollah Kavian Ahang Kowsar Mahmood Habibnejad Rooshan Kaka Shahedi
  10.22034/jest.2020.24479.3350
  Background and Objective: Artificial recharge of groundwaterthrough floodwater spreading is an approved method for improvement of groundwater resources. The appearance of sowbug to floodwater spreading system of Gareh Baygon Plain has been changed physic-chemical proper More

  Background and Objective: Artificial recharge of groundwaterthrough floodwater spreading is an approved method for improvement of groundwater resources. The appearance of sowbug to floodwater spreading system of Gareh Baygon Plain has been changed physic-chemical properties of soil. The main objective of this research is to evaluate soil infiltration rate with activity of sowbugs. Method:This study has been conducted in Kowsar aquifer management of Gareh Bygone plain. One of the floodwater spreading systems named Bisheh Zard1 was selected. This system has 6 sedimentation basins. The second sedimentation basin was chosen and divided to 11 plots. Infiltrability of 11 paired plots was determined utilizing the double ring method. Findings: Results showed that the appearance of sowbug that make hols with 7 milimeter and average one meter depth improve the soil physical properties and enhance the infiltration rate about 7.2 centimetres per hours and showed a significant difference at the 1 % level. The burrowing macro fauna, including the sowbug, form channels that facilitate accelerated flow of water towards the aquifer. Discussion and Conculation: This study approved that sowbug has a great effect on infiltration water to crusted soil that occurs by floodwater spreading. Sowbugs burrows have a marked effect on surface infiltration of water through the soil. The present research state that sowbug can be as useful agent for controlling of crusted soil from fine clay in sedimentation basinsform channels that facilitate accelerated flow of water towards the aquifer and increase the life time of floodwater spreading systems after 30 years and Gareh Bygone Plain desert has been changed to a evergreen forest.   Manuscript profile
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  2 - The first report on the identification of planktonic communities from Sarbaz River in Sistan and Baluchestan Province
  Mahmood Sinaei Ashrafali Hosseini Mehdi Blooki
  10.22034/jest.2017.10762
  Background and Objective: Due to importance of Sarbaz River in the Sistan and baloochestan province, study about environmental status of this river especially plankton community have so valuable and importance.So, this research was conducted to study plankton community More

  Background and Objective: Due to importance of Sarbaz River in the Sistan and baloochestan province, study about environmental status of this river especially plankton community have so valuable and importance.So, this research was conducted to study plankton community of Sarbaz River. Method: Sampling was carried out monthly in the ten sampling sites (Kajdar, Bandan, Hit, Firooz abad, Pole jakigoor, Ab nemaye Sade pishin, Pole kahirborz, Shir govaz, Jor) through Sarbaz River. The collected samples were fixed in 10% formalin and brought to the laboratory for plankton analysis Findings: Generally, ten species of phytoplankton (Bacillarphyceae) were identified in the all sampling sites. The Navicula with five species was more frequent than other phytoplankton species. Three groups of zooplankton including crustacean, rotifer and ciliates were identified in the all sampling sites. We have identified two groups of crustacean: Cyclops and daphnia. The frequent species among zooplankton were ciliates. This species have found in the all sapling sites and times. We have found negative relationship between diversity and frequency of crustacean. Crustacean with higher diversity have lower frequency. Conclusion: Studying plankton community in the Sarbaz river have shown that this environment have very low plankton diversity and frequency. Manuscript profile
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  3 - Survey of external parasites infestation of cyprinidea in Zarine-rud river in West Azerbaijan province
  سهراب Rasouli سجاد Purghasem
  In this research, external parasites infestation of carp fishes in Zarrineh-rud river, was examined. The species which were examined included capoeta, cyprinus carpio, carasius and ctenophoran. The fish were caught from summer 2012 to summer 2013 and their skin, fins an More

  In this research, external parasites infestation of carp fishes in Zarrineh-rud river, was examined. The species which were examined included capoeta, cyprinus carpio, carasius and ctenophoran. The fish were caught from summer 2012 to summer 2013 and their skin, fins and gills were examined to detect external parasites. During the year a total of 480 fish were caught alive and transferred to the laboratory and examined following anesthesia and identification. Microscopic examinations were conducted on samples taken from the skin, fins and gills and the isolated parasites were studied under the light microscope (4x-100x magnification). Finally, collected data were analyzed by Excel,v.2013 and SPSS,v.19 and the student T-test was run to determine the relationship between the variables. Totally, seven different parasite species, including two species of protozoa, four monogenea and a crustacean were identified, all of which had direct life cycle (Dactylogyrus lenkorani, Dactylogyrus Iamellatus, Dactylogyrus extensus, Clinostomum complanatum, Ichthyophthirius multifiliis, Trichodina sp, Lernaea sp, Paradiplozoon sp.). According to the results, seventy percent of the fishes were infested by the mentioned species of parasites. Ichthyophthirius multifiliis was the most prevalent parasite (65.00%), whereas Paradiplozoon sp.1 was the least (0.54%), at p<0.05. The data analysis indicated that there is a statistically significant difference between different seasons (p<0.05). Also, there was a significant difference between the infested organs, with gills being the most infested organ (p<0.05).   Manuscript profile