Iran Shrimp Research Center

Bandar-e Būshehr, Iran

Iran Shrimp Research Center

Bandar-e Būshehr, Iran
SEARCH FILTERS
Time filter
Source Type

Ghaednia B.,Iran Shrimp Research Center | Mehrabi M.R.,Iranian Fisheries Research Organization | Mirbakhsh M.,Iran Shrimp Research Center | Yeganeh V.,Iran Shrimp Research Center | And 3 more authors.
Iranian Journal of Fisheries Sciences | Year: 2011

The development of shrimp aquaculture, in spite of its global necessity, is largely at stake as significant ecological and pathological problems are increasing in the vast majority of the shrimp producing countries. Shrimp immunology is a key element in establishing strategies for controlling diseases in shrimp aquaculture. The total haemocyte count (THC), differential haemocyte count (DHC), total plasma protein (TPP), Phagocytic activity (PA), bacterial clearance efficiency (BCE) and bactericidal activity (BE) were examined when the F. indicus shrimps (11.32±1.20 g) were immersed in seawater (39 ppt and 25 ± 1 °C) containing hot-water extracts of brown alga Sargassum glaucescens at 100, 300 and 500 mg/l. These parameters increased significantly (p < 0.05) when the shrimp were immersed in seawater containing hot-water extracts at 100 mg/l after 3h and 300 and 500 mg/l after 2 h. F. indicus shrimps that were immersed in hot-water extracts at 300 and 500 mg/l had increased phagocytic activity and clearance efficiency to Vibrio spp. after 2 hours. But bactericidal activity increased significantly after 1 hour in the same concentrations.


Braulik G.T.,University of St. Andrews | Ranjbar S.,Iran University of Science and Technology | Owfi F.,Iranian Fisheries Research Organisation | Aminrad T.,Offshore Fisheries Research Center | And 3 more authors.
Journal of Cetacean Research and Management | Year: 2010

Iran has 1, 700km of coastline that borders the Persian Gulf and the Arabian Sea in the northwest Indian Ocean. Apart from a handful of records, almost nothing is known about which marine mammal species occur in Iranian waters. This review was conducted to fill this information gap. A total of 127 marine mammal records of 14 species were compiled from Iranian coastal waters. Ninety-nine were from the Persian Gulf, 26 from the Gulf of Oman and 2 were of unknown location. Records of finless porpoise (Neophocaena phocaenoides) (25), Indo-Pacific humpback dolphin (Sousa chinensis) (24) and Indo-Pacific bottlenose dolphin (Tursiops aduncus) (22) were by far the most numerous, a probable reflection of their inshore distribution and local abundance. Other species recorded were long-beaked common dolphin (Delphinus capensis tropicalis), roughtoothed dolphin (Steno bredanensis), striped dolphin (Stenella coeruleoalba), spinner dolphin (Stenella longirostris), Risso's dolphin (Grampus griseus), false killer whale (Pseudorca crassidens), sperm whale (Physeter macrocephalus) and dugong (Dugong dugon). Records of 26 mysticetes were compiled, 10 of which were tentatively identified as Bryde's whales (Balaenoptera edeni), 1 possible fin whale (Balaenoptera physalus), 3 humpback whales (Megaptera novaeangliae) and the remainder were not identified to species. The largest threat to small cetaceans in Iran is likely to be incidental capture in fishing gear. Nine finless porpoises were recorded as bycatch and this and other coastal species may be declining due to unsustainable mortality rates. Some of the world's busiest shipping lanes pass through Iranian waters and ship strikes are likely to be the largest threat to mysticetes in the area.


Jafari S.A.,Persian Gulf University | Cheraghi S.,Persian Gulf University | Mirbakhsh M.,Iran Shrimp Research Center | Mirza R.,Persian Gulf University | And 2 more authors.
Clean - Soil, Air, Water | Year: 2015

Three bacterial species of PG01, PG02, and PG03 were isolated from coastal sediments of Bushehr (Iran) as mercury-resistant bacteria. According to 16S ribosomal DNA gene sequence, the strains were identified as Vibrio natriegens, Vibrio parahaemolyticus, and Oceanimonas baumannii, respectively. Minimum inhibitory concentration test in the presence of HgCl2 revealed that the strain PG02 was the most resistant one, which tolerated up to 45mgL-1 Hg2+. Tracing the growth curves for the PG02 showed that when it is initially exposed to 5mgL-1 Hg2+ in the medium, only 10% of its natural growth is reduced, while it simultaneously succeeds to remove 90% of mercury. However, initially 10mgL-1 Hg2+ in the medium led to 30% growth inhibition and 80% mercury removal. According to a linear relationship between the growth inhibition percentage and the initial mercury concentrations, the median effective concentration was calculated as 21.84mgL-1 for PG02. Central composite design under response surface methodology well proposed a model with high values of R2=0.999 and adjusted R2=0.998 which predicted the maximum mercury removal of 89.47% by PG02 under optimum pH of 7.2, temperature of 37.5°C and the initial mercury concentration of 5mgL-1. Vibrio parahaemolyticus was identified as a mercury-resistant bacterial strain in coastal sediments of Bushehr (Persian Gulf, Iran). This strain was used for the purpose of mercury removal from aqueous solution. As a result, >89% of initial mercury was removed by this strain under optimum conditions of pH 7.2, 37.5°C, and initial concentration of 5mgL-1, respectively. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim 43 1 January 2015 10.1002/clen.201300616 Research Article Research Articles © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.


Pazir M.K.,Islamic Azad University at Tehran | Pazir M.K.,Iran Shrimp Research Center | Afsharnasab M.,Iranian Fisheries Research Organization | Jalali Jafari B.,Islamic Azad University at Tehran | And 3 more authors.
Iranian Journal of Fisheries Sciences | Year: 2011

The first time the white spot disease (WSD) and IHHNV were reported in Iran was in 2004 and 2008, respectively in Bushehr Province. In Sistan and Balochestan province only the WSD was reported in 2008.The aim of this study was detecting these two viral diseases in these provinces, during December 2009 to April 2010. A total of 364 samples were collected according to suspected gross signs from hatcheries and shrimp farms in Bushehr and Sistan and Blochestan provinces (I.R. Iran) respectively, including larvae (72, 43 samples), post larvae (48, 37 samples), juveniles (57, 32 samples), sub adults (39, 22 samples) and broodstock (29, 13 samples) of Litopenaus vannamei . WSD was detected from juveniles (23 samples), sub adults (14 samples), and broodstock (14 samples), and IHHNV was also detected from juveniles (16 samples), sub adults (9 samples) and broodstock (5 samples) based on gross signs, PCR and histopathological changes from Bushehr province but from Sistan and Blochestan province only WSD was detected from juveniles (26 samples), sub adults (18 samples) and broodstock (7 samples). Histopathological observations of WSSV showed basophilic Cowdry type A inclusion bodies in all tissues such as gills, haematopoietic tissue, cuticle epithelium, lymphoid organ and connective tissue. However histologically, the hepatopancreas tissue showed vacuolization of B cells, without inclusion bodies, but histopatholgical changes caused by IHHNV including eosinophilic Cowdry type A inclusion bodies which were ectodermal, mesodermal and rarely endodermal.


Raeisi H.,Gorgan University of Agricultural Sciences and Natural Resources | Daliri M.,Gorgan University of Agricultural Sciences and Natural Resources | Paighambari S.Y.,Gorgan University of Agricultural Sciences and Natural Resources | Shabani M.J.,Iran Shrimp Research Center | And 2 more authors.
African Journal of Biotechnology | Year: 2011

The aim of this study was to record the length-weight relationship parameters and condition factors for some commercially important fish of Bushehr coastal waters of Persian Gulf. The length-weight relationships were calculated for five species caught during fishing surveys using different types of fishing gears (trawls, pots and gill net with different mesh size) during April 2008 to December 2010. The b value ranged between 2.733 for Argyrops spinifer and 3.03 for Epinephelus coioides. The coefficient of determination (r 2) was very significant for all the species. Relative weight had significant differences (Kruskal-Wallis test, P<0.001) with best performance by E. coioides. This results show that this range size of specimens in these populations apparently do not reach and surpass 100% of mean weight. In this study, length-weight relationships and condition factors are reported for the first time for A. spinifer, Pomadasys kaakan and Lutjanus malabaricus from the Persian Gulf and for Lethrinus nebulosus and Lutjanus malabaricus ruber which has not been previously recorded in the Iranian waters. © 2011 Academic Journals.


Ziaei-Nejad S.,Behbahan Khatam alanbia University of Technology | Salehi L.M.,Behbahan Khatam alanbia University of Technology | Ghaednia B.,Iran Shrimp Research Center | Johari S.A.,University of Kurdistan | Aberomand A.,Behbahan Khatam alanbia University of Technology
AACL Bioflux | Year: 2015

Aquaculture industry especially shrimp farming in Iran and other parts of the world has been facing various disease that among various agents, pathogenic bacteria has emerged as important because it causes large economic losses to the shrimp farming industry. This study investigated the antagonistic properties of copper nanoparticles (34 mg/L), probiotic Bacillus subtilis (108 CFU/mL), and combination of these two against with pathogenic bacteria, luminescent Vibrio harveyi in vitro condition in order to investigate possible use of probiotic B. subtilis and copper nanoparticles in the diet for growth and immunity enhancement in Litopenaeus vannamei. This study reports that in Well diffusion test and Disc diffusion test against pathogenic bacteria luminescent V. harveyi maximum inhibition showed by combination of suspension of probiotic B. subtilis and copper nanoparticles the amount of (W = 22.54±1.72 and D = 16.37±2.9) whereas minimum inhibition was copper nanoparticles the amount of (W & D = 0). Results indicated the possible synchronic use of probiotic B. subtilis and copper nanoparticles in shrimp diet. © 2015, BIOFLUX SRL. All rights resereved.


Parisa H.K.,Iran Shrimp Research Center | Javad T.,Persian Gulf University
International Food Research Journal | Year: 2011

In this study, bioaccumulation of lead, copper, cadmium, zinc and mercury in gill, liver and muscle of Acanthopagrus latus (Yellowfin seabream) was quantified. The concentrations of heavy metals were determined by using differential pulse anodic stripping voltammetry (DPASV) after wet digestion method. The result comprise of concentration level of Cu2+, Cd2+, Zn2+, Pb2+ and Hg2+ in ten different samples of fish. Cu2+ and Zn2+ concentrations show that there is no significant variation with weight and length, but Cd2+, Pb2+ and Hg2+ concentration increases gradually as weight and length increases. Concentrations of metals in gill, liver and muscle were significantly different (p< 0.05). Muscle, generally, accumulated the lowest levels of metals and highest levels of metal concentrations were observed in the liver and gills. These results suggest that higher accumulation of heavy metals in liver and gills can be good environmental indicators of metal stress in Acanthopagrus latus. © 2011.


Sharif Rohani M.,Iranian Fisheries Research Organization | Dashtiannasab A.,Iran Shrimp Research Center | Ghaednia B.,Iran Shrimp Research Center | Mirbakhsh M.,Iran Shrimp Research Center | And 2 more authors.
Iranian Journal of Fisheries Sciences | Year: 2013

This study was conducted to evaluate the possibility of replacing Z. multiflora instead of antibiotics and chemicals in shrimp aquaculture industry to protect the environment and prevention of microbial resistance. In vitro MIC of Z. multiflora essential oil against Candida albicans and Fusarium solani obtained 0.004% and 0.008% respectively, also MFC of Z. multiflora essential oil against C.albicans and F.solani was 0.004% and 0.04%, respectively. The results showed that 0.0002% dosage of Z. multiflora essential oil against total count of fungi in sea water (salinity 39±1ppt) can decrease growth of fungi after 6 h and 0.0004%, 0.0008% and 0.0016% dosages can decrease the total count of fungi in sea water. But very low dosage of Z. multiflora essential oil in shrimp Litopenaeus vannamei leads to mortality. Lethal dose of Z. multiflora essential oil in shrimp postlarvae, juvenile (2±0.2g) and adults (10-12 g) was 0.00050%, 0.00045% and 0.00035%, respectively. The results indicated that Z. multiflora have a significant anti-fungal effect but is toxic for L. vannamei. We recommend that Z. multiflora essential oil can be used in non-living environment, such as disinfecting tanks and equipments.


Khoshnoud M.J.,Shiraz University of Medical Sciences | Mobini K.,Shiraz University of Medical Sciences | Javidnia K.,Shiraz University of Medical Sciences | Hosseinkhezri P.,Iran Shrimp Research Center | Jamshid K.A.,Iran Shrimp Research Center
Iranian Journal of Pharmaceutical Sciences | Year: 2011

This study was conducted to determine the concentrations of metals (Zn, Cu, Pb, Cd and Hg) in two commercial fish species of the Persian Gulf (coast of Bushehr Province in Iran), as well as in the sea waters. The concentrations of metals were determined by using differential pulse anodic stripping voltammetry (DPASV). Two selected species were narrow-barred Spanish mackerel and tiger tooth croaker. The same fish were also used to determine the ratios of fatty acids including saturated fatty acids (SFA), monounsaturated fatty acids (MUFA), and polyunsat-urated fatty acids (PUFA). Fish and water samples were collected from three different areas, namely Bushehr (station 1), Tangestan (station 2) and Dayyer (station 3). Results showed that all metals contents had lower concentration of the mean values than the permissible limits set by FAO/WHO. It can be concluded that both fish species studied are safe to be consumed. In the present study, for the first time correlation of metals concentrations with fatty acids ratios in both species was statistically analyzed and showed no correlation except for Pb mean value which had negative correlation with PUFA% in tiger tooth croaker species.


Dashtiannasab A.,Iran Shrimp Research Center | Kakoolaki S.,Iranian Fisheries Research Organization | Sharif Rohani M.,Iranian Fisheries Research Organization | Yeganeh V.,Iran Shrimp Research Center
Iranian Journal of Fisheries Sciences | Year: 2012

During the last decade, shrimp aquaculture has developed rapidly in many developing countries. Antibiotic resistance is a major problem in shrimp aquaculture. Seaweeds are considered as potent source of bioactive compounds that are able to produce biological activities. The aim of this study was to evaluate the antibacterial activity of ethanolic and chloroformic crude extracts of the brown algae, Sargassum latifolium derived from Persian Gulf waters. The extractions against shrimp selective pathogen bacteria including Vibrio alginolyticus, V. parahaemolyticus and V. harveyi were used by disk diffusion agar method. Results revealed that all mentioned bacteria were sensitive to both ethanolic and chloroformic crude extracts of S.latifolium. The minimum inhibitory concentration of chloroformic extract of S. latifolium against the bacteria was performed by tube dilution technique. MICs were 5, 10 and 10 mg ml-1 for V. alginolyticus, V. parahaemolyticus and V. harveyi, respectively while minimum bactericidal concentrations (MBC) were 5, 15 and 20 mg ml-1. This study recommended that S.latifolium isolated from Persian Gulf waters has antibacterial activity potential against shrimp pathogen bacteria.

Loading Iran Shrimp Research Center collaborators
Loading Iran Shrimp Research Center collaborators