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  • 1
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    Environmental risk assessment of the activity of specific pathogen free shrimp production centers (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: This study is a part of the national and technology master plan entitled "Attain to technical knowledge of specific pathogen free shrimp production and cut off to dependence on foreign products". The goals of this work were to assess and analysis the risk factors of production of specific pathogen free Litopenaeus vannamei shrimp in its all stages (broodstocking, laravl production, shrimp farming, feeding and water quality), determining the pattern of outcomes monitoring, management and control of outcomes from April 2012 to September 2015 in Bandargah research station and Persian Gulf SPF Shrimp research station and their environment, belonging to Shrimp Research Center, located in Bushehr. Identification and screening of risk factors have been done based on Environment Aspect and Effect Analysis method, (EA)2, using a fine statement questionnaire and quantification of risks. The number of identified risk factors in Bandargah research station was 15 while it was 13 in Persian Gulf SPF Shrimp research station. The more number of risk factors in Bandargah station in respect to its number in Persian Gulf station is might due to lower level of biosecurity, physical structure and aging of Bandargah station and existence of two possible source of contamination, the Bushehr nuclear power plant pollutants and Bandargah fishing harbor, near to the station. On the basis of results, the maximum values of APN in Bandargah station was 42 while it was 30 in Persian Gulf station. These results revealed that the level of risk in Bandargah station is lower than that in Persian Gulf station. The most probable risks in both studied research stations are related to transmission of pathogens in shrimp feeding and water intake pollution.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Environmental risk assessment ; Shrimp ; Litopenaeus vannamei ; Specific pathogen free
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 80pp.
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  • 2
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    Factors affecting phytoplankton fluctuations in the Persian Gulf )Bushehr coastal waters) during winter and spring 2012 - 2013 (2017)
    Details
    Publication Date: 2021-05-19
    Description: In this study, surface water samples were collected monthly from five stations inclduing Nayband Bay, Assaloye, Dayer, Kabgan and Bushehr from December 2012 to June 2013. Sampling stations were chosen according to data being collected during algal bloom caused by Cochlodinium polykrikoides in 2008. A total of 45 genera of phytoplankton belongs to four classes were totally identified accounting for 53 species of Bacilariophyceae, 32 species of Dinophyceae, one genus of Euglenophyceae, and one genus of Cyanophyceae. Bacilariophyceae with 89.5% was the most abundant family followed by Dinophyceae with 9.03%, Cyanophyceae with 1.25 % and Euglenophyceae with 0.22 %, respectively. The highest phytoplankton abundance was observed in Bushehr and Nayband Bay stations. In addition to statistical tests, Shannon (Shanon-Winner) and dominance indices were investigated. The lowest variability for Shannon index (1.90) was recorded in Bushehr Station in comparison with other stations. The highest Shanon index was in Dayer station (2.90) with the increase of diversity in Dinophyceae. Evidence of coastal pollution in Dayer along with nutrient inputs from land might be effective in increasing the Shannon index. At 80-90% simmilarity, the results of Cluster analysis separated Dayer station from other stations. It seems that a part of uniformity in phytoplankton abundance is affected by the mild conditions of ambient temperature. The total diversity of phytoplankton in the study area was low. The relative moderation of temperature seems to have contributed to the dominance of diatoms. Yet, the increased volume dust (as emerged by the increased dusty days per year) and the introduction of its accumulation in the Persian Gulf waters, along with other pollutants on phytoplankton communities might be underlaying factors for the dominace of diatoms in the study area.
    Description: Published
    Keywords: Red tide ; phytoplankton ; Fluctuations
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.91-102
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  • 3
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    A study on the diversity and abundance of Ichthyoplankton in coastal waters of the Kharg and Dylam (Persian Gulf) (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: The present investigation was undertaken to identify fish larva and estimate their abundance, diversity and evenness indices. Twelve stations were sampled monthly during daytime hours by Bongonet in the kharg and khargoo regions of Persian Gulf from January 2005 through December 2006. Forty family of fish larva were identified, Families of Silaginidae, Clupeoidea, Blenidae and Athrinidae consisted of more than 61 percent of all specimen; The abundance of specimen were more during spring through fall months and least during winter. The number and abundance of identified families varied from cruise to cruise and station to station; the average amount of diversity, Species Richness and evenness in investigated region were computed 1.93, 12 and 0.68, respectively. Temperature and salinity of water during this study were between 16-34°C and 35-42 gr/lit. There weren’t any significant correlation between fish larva indices and above factors.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Diversity ; Abundance ; Ichtyoplankton ; Fish larvae ; Sample ; Silaginidae ; Clupeoidea ; Blenidae ; Athrinidae ; Specimen ; Species ; Temperature ; Salinity ; Coastal waters
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 140pp.
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  • 4
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    Assessment of exploitation of Pars Special Economic ‎Energy Zone on Marine resources (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: This research has been done in the marine waters of Bushehr province in Persian Gulf in the geographical district of 52° 06ʹ to 52° 34ʹ E to 27° 23ʹ to 27° 46ʹ N conducted from the far east south of Boushehr province (Nayband headland) to the western south of Kangan (Berkeh choopan) located in the Persian Gulf using local fiberglass floats in 16 stations in spring, summer, fall and winter in 2011. The present study seeks to protect/monitor environmental conditions stemming from the effect of “special economic region-pars energy” on the biological resources of Persian Gulf. This research follows the similar research which had been done before (in 2006) by the oil research institute. All the results which determine the progress have been compared with the results of the performed results by the oil research center. They were also compared with the national standards (organization of environmental protection) and global standards (global health organization and American environmental agency). Thus, physiochemical factors such as temperature, salinity, acidity, dissolved oxygen, tarnishing and chemical oxygen seeking were recorded and measured. Nutrient materials such as silicate, phosphate, nitrate, ammonia, sulfides and organic carbons were investigated. The environmental conditions of the investigated waters were reported normal compare to the whole region. Small variation was reported around the exhausting wastewaters. The deposition of the investigated regions has had sandy graining. The organic materials were also allowed. The concentration of Nitrite, nitrate, ammonia, phosphate, silicate and sulfide is sometimes lower than the allowed level. But, there had been observed large amount of increase of phosphate and sulfide compare to the previous studies. The issue of the increase of phosphate has been seen in other studies. (Izadpanahi et al, 2005, 2009) Other organic and mineral contaminants (heavy metals) were investigated as well. It can be concluded from the changes of the concentration per year that metals such as mercury, lead, cadmium, zinc, chromium, nickel were increasing through the year in water and precipitation phases. Other metals such as iron and copper have had experienced the same progress with steeper gradient. Comparing the measured values with the allowed limits in different regions of the region (nonindustrial, industrial, inside the development region) indicate the comprehensive development in the whole region. The total concentration of oil hydrocarbons, aliphatic hydrocarbons and aromatic multi cyclic hydrocarbons were also investigated. The obtained results suggest that fortunately the investigated region is appropriate in normal circumstances from the pollution viewpoint. Aerobic and anaerobic bacteria, plankton, benthos were investigated as well. The concentration of aerobic bacteria had no significant differences with each other except in spring p=0.001 and summer p=0.041 Anaerobic bacteria had no significant relation with each other in water phase and sediment phases. (P=0.05) The concentration of phytoplankton and zooplanktons were similar in different seasons of the year. They were lower than the other studies. Comparisons of the abundance of benthos with other regional studies inside the Persian Gulf suggest that the habitat of such creatures was not destroyed due to the industrial activities so far. High difference or small differences of the measured values of many parameters (specially contaminants) shows the effectiveness of the mainstream of the water of Persian Gulf on developing contaminants inside the region (Siraf seaport to Kangan seaports)
    Description: Published
    Keywords: Operating impact ; Marine biota ; Persian Gulf
    Repository Name: AquaDocs
    Type: Report , Not Known
    Format: 220pp.
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  • 5
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    Laboratories Risks Assessments in Iran Shrimp Research Center (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: In order to continue improving the quality of Iranian fisheries science research institute's laboratories activities, For the first time in the years 2014-2015, a project with the subject of ―risk assessment of laboratories‖ conducted in Iran Shrimp Research Center, to determine the risk factors, potential risks and provide action plans to prevent the occurrence of any risks and increasing awareness of staff to safety issues. This project was done in eight laboratories which were named: Plankton, Pathology, Molecular genetics (extraction and elechtrophoresis), Pollutants, Marine physical chemistry, Sediment and benthos, Aquatic animal biometry and Microbiology with Failure Mode and Effects Analysis (FMEA) methods. The assessment process was designed and implemented in two phases: at the first phase, the current situation of safety indexes, risks identification and distance to laboratory safety parameters included: working environment, physical factors, test methods and the human factors were done, then risk assessment and risk management of identified risks were followed by check list forms. At the second phase, based on the findings ,control measures and safety guidelines were done and provided. According to the findings, the highest risk score related to Microbiology laboratory and pollutant laboratory with RPN 210, at the next level Marine physical chemistry laboratory with risk number 150 and respectively Molecular genetics laboratory (extraction), Sediment and benthos, Pathology, Molecular genetics (electrophoresis), Plankton and Aquatic animal biometry laboratories were existed. After control measures, the risk number of laboratories decreased as follows: Microbiology to 150, Pollutants to 120, Marine physical chemistry laboratory to 80, Molecular genetics (extraction) and Sediment and Benthos Laboratories to 48, Pathology decrease to 18, Molecular genetics (electrophoresis), Plankton and Aquatic animal biometry laboratories decreased to 8. It is hoped that by promoting safety knowledge of laboratory staff and providing financial can be able to reduce risk assessment number of all laboratories to very low rank.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Assessment ; Risk ; FMEA ; Laboratory ; Marine physical chemistry laboratory ; Molecular genetics ; Sediment and Benthos Laboratories
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 84pp.
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  • 6
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    The monitoring of hydrology and hydrobiology stydies of the Persian Gulf in the Bushehr region (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: This study has been carried out in waters of Bushehr province in the Persian Gulf covering Nayband bay to Bahregansar between 26° 45 N to 30° 00 N and 49° 45 E to 52° 45 E, 15 main and 5 sub- stations, by R/V Ferdows 1 in winter 2004, summer 2004 and winter 2005. The physico - chemical parameters, nutrients (silicate, phosphate, nitrate and nitrite), phyto, zooplanktons, sediments and macrobenthoses were collected from water layers and sea bottom, and then analysed. The parameters were compared and evaluated with the results of the previous work, conducted in the same area. Termocline, halocline, oxycline and picnocline layers were formed in summer. These clins disappeared due to water column mixing in winter. The values of temperature, conductivity and pH in summer were higher than those of in winter, while the salinity and density values of surface and subsurface layers in winter were higher than those of in summer. The temperature and conductivity have been decreased from surface to depth, from coastal rigions to offshore and from southern waters to northwern waters, while salinity, density and turbidity have been increased. The dissolved oxygen is decreased by increasing the values of temperature, salinity and depth and it is observed that D.O. has increased in correlation with chlorophyl a in mean and subsurface layers. The pH was rather decreased from surface to depth while turbidity was increased. Orthosilicate (Si_SiO44), nitrate (N_NO3 ), and nitrite (N_NO2 ) concentration have increased from surface to depth while orthophostate (P_PO43) decreased. Among the phytoplanktons, Dinophycea had most abundance in winter 2004 and Diatoms had most abundance, variety and distribution in summer 2004 and winter 2005. Among the zooplanktons, Copeopda had most abundance, variety and distribution. The intensity of phytoplanktons in summer was more than those in winter; it decreased from surface to depth and from coastal rigions to offshore, at first increased and then gradually decreases. Intensity of zooplanktons in summer was more than those in winter and decreased from surface layers to depth and from coastal waters to offshore. The abundance of benthoses in summer was more than that in winter while their biomass in winter was more than that in summer. The abundance decreased from southern to northwern waters, but the rate of decrease in biomass was more than that of abundance. The mainly texture of sediments was loamy or muddy and the grain size in southeastern and northwestern areas were coarser than those in middle area. Compared with the previous study, the trend of physico chemical, silicate, nitrate and nitrite were the same but in spite of the past, the values of pH in summer were more than those in winter and also phosphate concentration had been decreased frome surface layer to depth. The overall trends of phyto and zooplanktons densities are almost similar to previous observation, but cyanophyceae significantly decreased, in comparison with spring and summer abundance. It is also observed that the zooplanktons average density has been in reverse order compared to previous observations. Average concentration of phosphate in the entire region was seven times more than that of the former study and its maximum value has rised more than 26 times in the petroleum and gas industries areas. On the other hand, the abundance and diversity of phyto and zooplanktons and also the ratio of biomass to abundance of benthoses were decreased.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Chemical ; Physicochemical ; Hydrology ; Hydrobiology ; Nutrients ; Phytoplankton ; Zooplankton ; Sediments ; Macrobenthose ; Temperature ; Dissolved oxygen ; Chlorophyll a ; pH ; Diatoms ; Copeopda ; Depth ; Monitoring
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 177pp.
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  • 7
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    Assessment of exploitation of Pars Special Economic Energy Zone on Marine resources (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: This research has been done in the marine waters of Bushehr province in Persian Gulf in the geographical district of 52° 06ʹ to 52° 34ʹ E to 27° 23ʹ to 27° 46ʹ N conducted from the far east south of Boushehr province (Nayband headland) to the western south of Kangan (Berkeh choopan) located in the Persian Gulf using local fiberglass floats in 16 stations in spring, summer, fall and winter in 2011. The present study seeks to protect/monitor environmental conditions stemming from the effect of “special economic region-pars energy” on the biological resources of Persian Gulf. This research follows the similar research which had been done before (in 2006) by the oil research institute. All the results which determine the progress have been compared with the results of the performed results by the oil research center. They were also compared with the national standards (organization of environmental protection) and global standards (global health organization and American environmental agency). Thus, physiochemical factors such as temperature, salinity, acidity, dissolved oxygen, tarnishing and chemical oxygen seeking were recorded and measured. Nutrient materials such as silicate, phosphate, nitrate, ammonia, sulfides and organic carbons were investigated. The environmental conditions of the investigated waters were reported normal compare to the whole region. Small variation was reported around the exhausting wastewaters. The deposition of the investigated regions has had sandy graining. The organic materials were also allowed. The concentration of Nitrite, nitrate, ammonia, phosphate, silicate and sulfide is sometimes lower than the allowed level. But, there had been observed large amount of increase of phosphate and sulfide compare to the previous studies. The issue of the increase of phosphate has been seen in other studies. (Izadpanahi et al, 2005, 2009) Other organic and mineral contaminants (heavy metals) were investigated as well. It can be concluded from the changes of the concentration per year that metals such as mercury, lead, cadmium, zinc, chromium, nickel were increasing through the year in water and precipitation phases. Other metals such as iron and copper have had experienced the same progress with steeper gradient. Comparing the measured values with the allowed limits in different regions of the region (non-industrial, industrial, inside the development region) indicate the comprehensive development in the whole region. The total concentration of oil hydrocarbons, aliphatic hydrocarbons and aromatic multi cyclic hydrocarbons were also investigated. The obtained results suggest that fortunately the investigated region is appropriate in normal circumstances from the pollution viewpoint. Aerobic and anaerobic bacteria, plankton, benthos were investigated as well. The concentration of aerobic bacteria had no significant differences with each other except in spring p=0.001 and summer p=0.041 Anaerobic bacteria had no significant relation with each other in water phase and sediment phases. (P=0.05) The concentration of phytoplankton and zooplanktons were similar in different seasons of the year. They were lower than the other studies. Comparisons of the abundance of benthos with other regional studies inside the Persian Gulf suggest that the habitat of such creatures was not destroyed due to the industrial activities so far. High difference or small differences of the measured values of many parameters (specially contaminants) shows the effectiveness of the mainstream of the water of Persian Gulf on developing contaminants inside the region (Siraf seaport to Kangan seaports).
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Operating impact ; Marine biota ; Pars Special Energy Economy Zone
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 137pp.
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  • 8
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    Ecological study in ponds of Litopenaeus vannamei (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: This study has carried out on five earth ponds of Litopenaeus vannamei shrimps investigation and Mahan Siraf farm s which located at Helleh site in the Bushehr province from may 2007 . main objectives’ were : (1) Measurements of quality factors in water and sediment, Planktons and benthoses, (2) quality factors’ effects on growth and survival of Litopenaeus vannamei. With respect the time of shrimp stocking and harvesting, the frequencies of water and sediment sampling were done per 10 day and once per month, respectively. both sediment sampling of the pond beds have done before and after harvesting. The measured factors in the water ponds were : pH, salinity, dissolved oxygen, transparency, temperature (Twice a day in the morning and the afternoon), chlorophyll-a, nitrate,nitrite, orthophosphate, iron, biochemical oxygen demand, TSS, TDS, Planktons. The parameters (pH, total organic matter, iron) were measured in sediment. The measurement of grain size has done in two times (before and after harvesting). independent variables including nitrate, Ammonia, orthophosphate, iron and chlorophyll-a had significant correlations with shrimp weights as dependent variable. Nitrate showed the highest correlation with the shrimp weights (r = 0.921). overall correlation of fifth most important factors with the shrimp weights, namely nitrate, orthophosphate, Ammonia, iron and chlorophyll-a was estimated to r=0.999. The results show low concentration of the essential nutrient such as phosphate and nitrate, high concentration of ammonia, undesirable’s transparency, and a great amount of clay in pond beds . On the basis of above description, required to renewing management in fertilizing, feedings, liming qualities of the bed.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Ecological ; Litopenaeus vannamei ; Investigation ; Shrimp ; Salinity ; Ponds
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 86pp.
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  • 9
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    Study of Nutritional Behavior on Holothuria paradise in Bushehr Province (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: Nutritional study of Holothuria leucospilata, black sea cucumber were investigated from September 2016 to September 2017 (12 month). 46 samples of sea cucumbers was collected by scuba in Bushehr coasts, diets and biometrics was studied in laboratory. Rates of relative length of the gut (RLG) were calculated by the average value of 2.01±0.2 which shows Holothuria leucospilata is omnivore. Empty stomach index (cv) were calculated 26.08 and 73.91 for full stomach, results indicated that H. leucospilata being gluttonous. The maximum value of CV was calculated in autumn and feeding start was in winter (synchronous to gonad development start), spawning was in summer. Maximum of GastroSomatic Index was 8.306±1.25 in summer synchronous to pick of spawning. The study of sediments size of intestine contents showed the smallest size was 0.25-0.125 and the biggest 〉2 mm. There were organic materials in anterior of intestine. Mean of sediments (%) calculated 59.485±50.46 in gastrointestinal tract .Also food preference (FP) was calculated for each type of food. The contents of gastrointestinal tract were clay, silt, sand, oyster shell, bivalve, green algae, plant and animal detritus, diatoms, plants and animals digestives, so food performance was respectively: clay, silt, sand, frominifora, molluscs, diatoms, bivalves, crab shells, algea, amphipoda, organic sediments, nematode and scales. The most of frequency of diatoms were: Navicula sp., Nitzschia sp., Amphipora sp., Cymbella sp..
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Nutritional study ; Relative length of the gut (RLG) ; GastroSomatic Index ; Food performance ; Holothuria leucospilata
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 48pp.
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  • 10
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    Establishing a database for phytoplankton species from Persian Gulf and Oman Sea- Phase 1: the relevant conducted studies (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: The research was carried out in October 2016 to September 2017 for one year, in order to collect the results of studies phytoplankton in the Persian Gulf and Oman Sea by Iranian researcher. Information data was collected through search of the internet, the university libraries, research organization and Institutes in the country. In this study sampling methods, density, distribution, diversity, community composition and harmful species have been develop. Phytoplankton were recorded with seven class, 334 species, according to Bacillariophyceae with 167 species, Dinophysis with 255 species, Cyanophyceae with 7 species, Euglenophyceae with one species, Chlorophyceae with two species, Dictyochophyceae with two species and Raphidophyceae with one species in the Persian Gulf part of Iranian water. Also, phytoplankton were recorded 6 class and 204 species as Bacillariophyceae with 105 species, Cyanophyceae with 6 species, and Dictyochophyceae with 2 species and silicoflagellate with one species. The species that capable of producing toxin such as: Pyrodinium bahamense, Lingulodinium polyedrum, Gymnodinium mikimotoi, Gymnodinium catenatum and Gonyaulax polygramm were observed more than in the Oman Sea compare in the Persian Gulf
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Phytoplankton ; Database ; Gymnodinium catenatum ; Gymnodinium mikimotoi ; Gonyaulax polygramm ; Pyrodinium bahamense ; Lingulodinium polyedrum
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 48pp.
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