ALBERT

Description: The report provides comprehensive information and exclusive native species and their status in terms of protection, browse and view Resorts® reserve forest vegetation and coastal areas of the Persian Gulf and Oman Sea and Caspian Sea is mentioned. In a series of studies including field trips, collect and identify plants in Iran, the list has been presented since 1362 to date in the form of plans and programs identify plants is planned. It should be noted that all identified studies and knowledge of plants and notes as well as an identification key based on the information contained in Flora Iranica valuable book written K.H. Rechinger plays a key role and is essential to identify the plants. along with scientific names, synonyms and names mentioned Farsi and English with the geographic distribution is presented according to two area Shmnaly and south. Based on existing resources, conservation status of species under national legislation and international and native status (Endemic) and biological values and biodiversity of geographically referenced.

Description: Iranian Fisheries Science Research Institute

Description: Published

Description: Present study was conducted in the Persian Gulf (Iranian waters) from 2009 to 2012. The main objective of the research was economical evalution of the stock enhancement of banana prawn (Fenneropenaeus merguiensis) and green tiger shrimp (Penaeus semisulcatus) in the studied area. Also tagging effects on the growth and mortality of tagged shrimp were studied. In banana prawn, broodstock shrimps were hatched in June. In July 2010 and 2011some of the juvenile of this species were marked by red fluorescent liquid injection and released were made at night in the estuaries of Tiab, Kolahi and Koolgan in the Hormozgan province. 84000 juveniles of banana prawn in 2010 and about 50000 in 2011 were released in this area. In Bushehr province waters, adults shrimp were reared and when juveniles reached to optimum size, some of them were tagged by red and blue coloures and were released in the coastal waters of Bandargah and Delvar. Tagging and releasing program of green tiger prawn was performed in 2010 and 2012. A total number of 8000 prawn in 2010 and about 30000 juveniles prawn in 2010 were released. Activities for recaptured shrimps were informed by posters describing the tagging program that were distributed to local peoples, as well as local magazines, and a tagging program awareness film was broadcast on national television three times prior to the shrimp fishing season and during catch season. To encourage people to report recaptures a reward of two handered thousent riales was paid for the return of each marked shrimp accompanied by information. Economical evaluation of banana prawn was performed based on releasing and recaptured program in 2011. As it mentioned in this year 50000 of juvenile shrimp were tagged and released. At the same time 4700000 of unmarked shrimp were released in this area. In the shrimp season 11 (./022%) of tagged shrimp were recaptured. Movements of tagged shrimp were northwesterly to released area. Weight average of tagged prawns was 1.2 gram. Mean weight of the recaptured prawns was 22.06±4.9 gram. Body weight Growth of the recaptured prawns was between 16-26 grams with the growth speed of 0.88-1.41 per week. The number of recaptured prawn to the released prawn was 0.022 percent. Based on the released prawns (4700000) to the recaptured percent (./022%), about 103400 of released shrimp with mean weight of 2.5 tones were observed in the Hormozgan shrimp catch. The average price of shrimp in the studied year in the local market was 85000 Rials per kilogram. These results showed that the ratio of profit is 210 milion riales. In the taggiing program of green tiger prawn in the Bushehr waters only one recaptured shrimp was observed in the catch season (2012). Total weigth and total length of this prawn was 99 gram and 22 centimeter respectively .given the small percentage of the recaptured, economical analyses was not performed on this species. The effects of tagging on the growth and mortality of green tiger prawn were studied. The present study was carried out in the shrimp research station in Bandargah and Abzistan shrimp Hatchery Company in Delvar during 2010 and 2012. The accuracy of the study was more rialable in 2012. In this year growth and mortality of juveniles that was marked by red and blue coloures, were studied in both area Bandargah and Delvar. In Bandargah, three tanks of 300 l each with 30 specimens were used for untagged shrimp as a control group, and tagged with injected liquid fluorescent during 98 days. Length and weigh of 10 specimens were measured evenly in different times. ANOVA results (α = 0.1 and α = 0.5) showed no significant differences between length growth of tagged shrimp and control group. The mortality of two groups was evaluated by numbering of remained shrimps and the average of survival was 52 percent in the tagged and 44.5 percent in tagged shrimps. In the Delvar station, Abzistan Company, the specimens were kept in the 9 tanks each 300 l that included of 30 untagged shrimps, 30 blue tagged shrimps and 30 red florescent tagged shrimp. The growth and mortality of this station were evaluated during 110 days. The growth rate of the specimens were measured and recorded evenly. The results of ANOVA (α = 0.1 and α = 0.5) showed no difference significantly in the weight growth of tagged and control groups. The mortality rates among the control group, red tagged and blue tagged were 63 percent, 59 percent and 40 percent. The mortality of the groups was differences in the two stations and it seems the management and environmental conditions were more affected on the mortalities. The results of the study show that the ratio of profit to the coast is 0.46 that is covering half of the coasts, so that the expenditures are two times more than profit. This result is the minimum of economical value of stock enhacement of shrimp. The results of study showed that the injected tags into the body tissue of shrimp has no affected on the growth rate and mortality.

Description: Iranian Fisheries Science Research Institute

Description: Published

Description: Coastal ecosystems of Bushehr are shallow environments subject to human impacts, including shrimp aquaculture and urban expansion activities. A spatial-temporal study was conducted in order to assess the actual ecological status of the creeks, estuary and marine sites on the basis of their taxonomic composition and density of mesozooplankton. Zooplankton species distribution and abundance data at 6 sampling sites during June 2015 - March 2016 revealed 24 taxa represented by 5 divergent groups. During the study period, high salinities (around 35-47) were recorded, characterizing all systems as a coastal-marine ecosystem, rather than true estuarine. The mesozooplankton assemblage was characterized by the dominant marine Copepod, Labidocera sp., zoeas of coastal/marine crab, Ilyoplax frater, marine copepod Acartia fossae and a marine pelagic tunicate, Oikopleura dioica. Copepods were the main dominant group and Labidocera sp the most abundant species, with high abundances in winter, whereas high abundances of the Ilyoplax frater were noticed in summer. Based on SIMPER analyses, highest dissimilarity was observed between Ramleh and Lashkary and discriminating taxa for all sites were Labidocera sp followed by Ilyoplax frater contributing to more than 68% of the total average dissimilarities for all locations. The multivariate BIO–ENV procedure indicated that Labidocera sp. followed by Acartia fossae strongly correlated to the variability of depth, transparency and salinity. Finally the results showed that temporal and spatial variation in the mesozooplankton community is consistent with the dynamic character of the habitat characterized as a typical coastal marine system (with low average depths, transparency and high salinity).

Description: Published

Description: White spot syndrome virus (WSSV) is the causative agent responsible for huge-shrimp viral epidemics in shrimp farms throughout the world.Our study was aimed to determine the effect of WSSV Gamma-vaccinated Litopenaeus vannamei in occurrence of apoptosis. One thousand and twenty PL15 were randomly distributed among 2 treatments and two control groups. Gama-Vaccinated shrimp and none-Gamma-vaccinated ones were our treated and untreated groups. Our result showed there is a significant difference (p〈.05) between vaccinatedexposed group (82.33±2.51) and none-vaccinated exposed group (26.00±10.00) was about 56%. It is concluded that apoptosis can be a helpful process as immune function in shrimp especially against WSSV.

Description: Iranian Fisheries Science Research Institute

Description: Published

Description: Aquatic plants play an important role in the aquatic ecosystems because of food production and habitats for fish, wildlife, and other aquatic organisms. In recent years, many parameters such as high the mass of nutrition, organic matter and pollution have had a significant effect on the variation of the biological population. In this study, the samples of aquatic plants were identified in 4 stations of Anzali Wetland ( West, Center, Sheijan and Siah kishim) and dominant species biomass were investigated. In this study, 21 plant species belonging to 17 Family of aquatic plants were identified. So, 540 samples were collected in the plot of 1 m2 in 15 stations by systematic random sampling. Species were identified and wet weight was determined. The physic-chemical parameters of water were measured based on standard methods. The relationship between plant coverage (Flura) and Physico-chemical characteristics of water was analyzed by using of PCA in Canaco 4 software. According to this study, the Potamogenaceae and Thyphaceae specified the highest population in 4 and 2 genera, respectively. Based on Rainier’s method, the results of aquatic species classification showed that the highest percentage of plants such as Cryptophyte ( 37.2 %), trophite (23.53%) and Halophite ( 39.38 %) were the main structure of the plant diversity due to climatic features in Anzali wetland. As well as to evaluate the plant Chorotype, plant elements of this area were extracted and compared by using of available resources. The wetland Crorologic group listed by Cosmopolitan ( 57.14%), multi-region (28.57%) Europe-Siberian and Mediterranean ( 7.14%) & Iranian-Turanian (7.14%). The result showed that the average of the total biomass of aquatic plants was 746 g/m2 in this area. The result also showed Ceratophyllum demersum, Nelumbium capsicum and, Trapa natans had the most effect on increasing and decreasing weight of the plant's biomasses in different seasons. The analyses of PCA showed that highest biomass wet weight because of the potential Ceratophyllum demersum for growth in the depths of the wetlands and high nutrient loads in this area.

Description: Iranian Fisheries Science Research Institute

Description: Published

Description: Accurate scientific and practical plan for achieving the goals of the Islamic Republic of Iran within the framework of Vision development 1404 , is the infrastructure achieving sustainable development of the country . Order to achieve the above mentioned objectives and in order to the comprehensive development plans in the country, Iranian fisheries research organization adjust the fifth developing plan for support of executive related departments in country with mobilization a large number researchers consists of several working groups of ifro affiliated research centers . The fifth developing plan consist of three chapters for report of the forth developing plan and intrudction of research , construction plans and financial support (budjet) for period of 2011-2014 A.C .

Description: Iranian Fisheries Science Research Institute

Description: Published

Description: According to the importance of micro-algae in aquatic feed such as fish in this study have been investigated Preparation of useful algae powder or concentrate for breeding silver carp , their impact on the growth of silver carp , rate per unit area and estimate n economic Development. Different algal species were isolated from hydrothermal fish farms, then were purified and mass culture . The next step microalgae were dried and powdered by spray dryer and were examined the fish feeding on them. During this study, 6 species of chlorophyt( Scenedesmus obliquus, Scenedesmus acuminatus, Chlorella vulgaris, Pediastrum boryanum, Pandorina morum, Ankistrodesmus falcatus) ,3 species of cyanophyta ( Anabaena flosaquae, Oscillatoria agardhi and Spirulina platensis) and 1 species of Bacillariophta ( Cyclotella meneghiniana were isolated from.Green algae and Blue -green algae were cultured in Zaindr medium, diatoms were cultured in Zaindr medium but with water of Anzali logoon and also in F2 medium with artificial sea water and spirulina was cultured in Zarouk medium. Microalgae were cultures then concentrated.Then the impact was examined on fish silver carp 2 to 3 grams. The results showed that Cyclotella has a greater role in the growth of silver carp and Anabaena floes aquae and Spirulina platensis tend to growth less than cyclotella. Scenedesmus obliquus and Scenedesmus acuminatus were respectively next algae that showed the greatest impact on fish growth. Scenedesmus obliquus feed rate was greater than any other algae for Daphnia.

Description: Iranian Fisheries Science Research Institute

Description: Published

Description: Abnormal algal bloom is a global issue. So the Caspian Sea such as the other aquatic environment is at risk of algal bloom. Thus the present study in 2013-14, was conducted to get goals, firstly determination of temporal and spatial variation of phytoplankton abundance and biomass with emphasis on dominant species with bloom potential and secondly detemination of chlorophyll-a concentration. Mostly sampling conducted in mid-seasons in 4 transects (Anzali, Tonkabon, Nowshahr and Amirabad) at surface, 10 and 20m layers in depths of 5, 10 and 20m. Based on the results the annual mean±SE of phytoplankton abundance was 219 ± 33 million cells/m3. The minimum and maximum valus of abundance recorded in summer (73 ± 31 million cells/m3) and winter (505 ± 55 million cells/m3) respectively. Totally 147 phytoplankton species identified which classified in 7 phyla and small phytoflagellates group. The major portion of abundance formed by Bacillariophta (81%). The minimum and maximum seasonal phytoplankton biomass were in summer (90 ± 20 mg/m3) and winter (1777 ± 201mg/m3) respectively. The annual median of chlorophyll-a concentration was 2.43 mg/m3 at surface layer and its seasonal value in spring, summer, fall and winter recorded 1.54, 1.18, 5.81 and 2.59 mg/m3 respectively. Therefore algal blooms started in fall and it was followed with lower intensity in winter. Mean of phytoplankton abundance and biomass in winter were 3-6 folds to other seasond. But chlorophyll-a concentration in winter was low and closed to the values in spring and summer. Probably, decreasing of ligh availibity and low chlorophl content of dominant species showed important roles in decreasing of chlorophyll-a concentration in winter. As conclusion, the abundance of Stephanodiscus socialis, Binuclearia lauterbornii and Thalassionema nitzschioides classified in the fair level of bloom (100-1000 cells/ml) in spring (in Anzali transect), summer and fall (in Amirabad transect) respectively. In winter, Dactyliosolen fragilissima،(in all transect except Nowshahr) and Pseudonitzschia seriata were in this group. The presence of Thalassionema nitzschioides (as valuble food in food chain) in dominant species list (same patern to the stability year of Caspian Sea) and decreasing of percent abundance of harmful species from 68% (in 2008-2009) to 43% (in this study) are good signs of water quality from Caspian Sea. On the other hand, Pseudonitzschia seriata as a harmful alga (ability to produce toxin and bloom forming) has important role in environmental issues. In current study, Pseudonitzschia seriata expanded from cold season to other seasons (even in summer). Also, it had high percent frequency (100%) and abundance (294 ± 30 million cells/m3) in winter which indicate to unsuitable condition of water quality in Caspian Sea.

Description: Iranian Fisheries Science Research Institute

Description: Published

Description: Algae production in controlled condition is one one the most important subject that ought to studying . This kind of algae production can use for biosynthesis great syuffs like as vtamines and unsaturated fatty acids. For achieving this goal 〈 this project was designed and done. At this project some procedures like steril cultivation 〈 light controlling, remove and dissolving gases as oxygen and carbon dioxide, mixturing tank , intelligent sensor, biofilter purifying, dechloration vessel and dosing pumps are new phenomenas are used. Finally , chlorella sp from Gilan institute were culativated more than 16000000 cells per one millimeter.

Description: Iranian Fisheries Science Research Institute

Description: Published

Description: Present study was conducted in the Persian Gulf (Iranian waters) from 2009 to 2012. The main objective of the research was economical evalution of the stock enhancement of banana prawn (Fenneropenaeus merguiensis) and green tiger shrimp (Penaeus semisulcatus) in the studied area. Also tagging effects on the growth and mortality of tagged shrimp were studied. In banana prawn, broodstock shrimps were hatched in June. In July 2010 and 2011some of the juvenile of this species were marked by red fluorescent liquid injection and released were made at night in the estuaries of Tiab, Kolahi and Koolgan in the Hormozgan province. 84000 juveniles of banana prawn in 2010 and about 50000 in 2011 were released in this area. In Bushehr province waters, adults shrimp were reared and when juveniles reached to optimum size, some of them were tagged by red and blue coloures and were released in the coastal waters of Bandargah and Delvar. Tagging and releasing program of green tiger prawn was performed in 2010 and 2012. A total number of 8000 prawn in 2010 and about 30000 juveniles prawn in 2010 were released. Activities for recaptured shrimps were informed by posters describing the tagging program that were distributed to local peoples, as well as local magazines, and a tagging program awareness film was broadcast on national television three times prior to the shrimp fishing season and during catch season. To encourage people to report recaptures a reward of two handered thousent riales was paid for the return of each marked shrimp accompanied by information. Economical evaluation of banana prawn was performed based on releasing and recaptured program in 2011. As it mentioned in this year 50000 of juvenile shrimp were tagged and released. At the same time 4700000 of unmarked shrimp were released in this area. In the shrimp season 11 (./022%) of tagged shrimp were recaptured. Movements of tagged shrimp were northwesterly to released area. Weight average of tagged prawns was 1.2 gram. Mean weight of the recaptured prawns was 22.06±4.9 gram. Body weight Growth of the recaptured prawns was between 16-26 grams with the growth speed of 0.88-1.41 per week. The number of recaptured prawn to the released prawn was 0.022 percent. Based on the released prawns (4700000) to the recaptured percent (./022%), about 103400 of released shrimp with mean weight of 2.5 tones were observed in the Hormozgan shrimp catch. The average price of shrimp in the studied year in the local market was 85000 Rials per kilogram. These results showed that the ratio of profit is 210 milion riales. In the taggiing program of green tiger prawn in the Bushehr waters only one recaptured shrimp was observed in the catch season (2012). Total weigth and total length of this prawn was 99 gram and 22 centimeter respectively .given the small percentage of the recaptured, economical analyses was not performed on this species. The effects of tagging on the growth and mortality of green tiger prawn were studied. The present study was carried out in the shrimp research station in Bandargah and Abzistan shrimp Hatchery Company in Delvar during 2010 and 2012. The accuracy of the study was more rialable in 2012. In this year growth and mortality of juveniles that was marked by red and blue coloures, were studied in both area Bandargah and Delvar. In Bandargah, three tanks of 300 l each with 30 specimens were used for untagged shrimp as a control group, and tagged with injected liquid fluorescent during 98 days. Length and weigh of 10 specimens were measured evenly in different times. ANOVA results (α = 0.1 and α = 0.5) showed no significant differences between length growth of tagged shrimp and control group. The mortality of two groups was evaluated by numbering of remained shrimps and the average of survival was 52 percent in the tagged and 44.5 percent in tagged shrimps. In the Delvar station, Abzistan Company, the specimens were kept in the 9 tanks each 300 l that included of 30 untagged shrimps, 30 blue tagged shrimps and 30 red florescent tagged shrimp. The growth and mortality of this station were evaluated during 110 days. The growth rate of the specimens were measured and recorded evenly. The results of ANOVA (α = 0.1 and α = 0.5) showed no difference significantly in the weight growth of tagged and control groups. The mortality rates among the control group, red tagged and blue tagged were 63 percent, 59 percent and 40 percent. The mortality of the groups was differences in the two stations and it seems the management and environmental conditions were more affected on the mortalities. The results of the study show that the ratio of profit to the coast is 0.46 that is covering half of the coasts, so that the expenditures are two times more than profit. This result is the minimum of economical value of stock enhancement of shrimp. The results of study showed that the injected tags into the body tissue of shrimp has no affected on the growth rate and mortality.