Iranian Fisheries Research Organization
Iranian Journal of Fisheries Sciences
1562-2916
17
1
2018
1
1
Effects of 2-phenoxyethanol (2-PE) anesthesia on some haematological and biochemical indices of silver carp (Hypophthalmichthys molitrix)
1
10
FA
A.A.
Hedayati
Department of Aquatics Production and Exploitation, Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran.
Hedayati@gau.ac.ir
Y
In this study, the anesthetic effects of 2-phenoxyethanol (2-PE) on possible primary (cortisol level) and secondary (haematological indices and glucose level) stress responses were studied in silver carp (Hypophthalmichthys molitrix). Fish were first exposed to 0.1, 0.3, 0.5, 0.7 and 0.9 mL L-1 2-PE, and the time of induction (deep anesthesia) and recovery were measured. At concentrations of 0.5, 0.7 and 0.9 mL L-1 2-PE, all fish were anaesthetized within 3 min of exposure. For assessing possible stress effects caused by effective concentrations of 2-PE, the haematological indices, serum cortisol and glucose were determined in the deeply anaesthetized fish as stress indicators. 2-PE exposure resulted in a significant increase in red blood cell (RBC) amounts at 0.1 and 0.3 mL L-1. A parallel increase in hemoglobin and Haematocrite amounts at 0.1 concentrations (p<0.05) was observed. The serum cortisol levels had the highest amount in 0.1 mL L-1 of 2-PE. Moreover 2-PE exposure resulted in a significant increase in glucose amounts first at the 0.1 and later in the 0.3 mL L-1 concentrations. This study shows that rapid induction of deep anesthesia with a relatively high concentration of 2-PE (0.5, 0.7 and 0.9 mL L-1) was associated with the lowest effects on the haematological and serum biochemical indices in silver carp and so 0.7 mL L-1 could be suggested as a suitable dose for haematological studies in this species.
Blood parameters, Anesthesia, Stress response, Silver carp
http://jifro.ir/article-1-3264-en.html
http://jifro.ir/article-1-3264-en.pdf
Iranian Fisheries Research Organization
Iranian Journal of Fisheries Sciences
1562-2916
17
1
2018
1
1
Effect of enriched rotifer (Brachionus plicstilis) with probiotic lactobacilli on growth, survival and resistance indicators of western white shrimp (Litopenaeus vannamei) larvae
11
20
FA
N.
Najmi
Department of Fisheries, Bandar Abbas Branch, Islamic Azad University, Bandar Abbas, Iran.
najmi.nassim@yahoo.com
Y
M.
Yahyavi
Department of Fisheries, Bandar Abbas Branch, Islamic Azad University, Bandar Abbas, Iran.
N
A.
Haghshenas
Shrimp Research Center, Iranian Fisheries Science Research Institute (IFSRI), Agricultural Research Education and Extension Organization (AREEO), Bushehr, Iran
N
This study examined the effects of a commercial Lactobacillus probiotic on growth, survival and resistance of western white shrimp (Litopenaeus vannamei) larvae against salinity and formalin stresses in the Persian Gulf and Oman Sea Ecology Research Center. In this experiment, larvae were fed 6 times a day from mysis I (M1) step to post larvae 5 over 3 treatments including a control treatment C (without probiotic) and 2 experimental treatments namely A (having probiotic enriched rotifer) and B (having probiotic enriched rotifer and adding probiotic powder directly to the water). Larvae were stocked in 9 plastic tanks (20-liter) containing 10 L of seawater at a density of 50 larvae per liter. Three replicates were used for each treatment. At the end of the experimental period biometric larvae were studied under salinity and formalin stresses. Results showed that using probiotic bacteria had significant and positive effects on shrimp resistance, survival and growth (p<0.05) and that growth and survival rate of larvae fed with A and B treatments were significantly higher than that of the control group (p<0.05). The results of the stress tests also indicated that probiotic containing treatments (A and B) had significantly higher survival rates in salinity and formalin stresses than the control treatment (p<0.05). The highest survival rate and resistance were observed in treatment B which was not statistically different from that of treatment A (p>0.05). According to the results we may conclude that the use of probiotic powder is effective in increasing growth, survival and resistance rate of western white shrimp in the larval and post larval stages.
Brachionus plicatilis, Probiotic, Resistance, Litopenaeus vannamei
http://jifro.ir/article-1-3265-en.html
http://jifro.ir/article-1-3265-en.pdf
Iranian Fisheries Research Organization
Iranian Journal of Fisheries Sciences
1562-2916
17
1
2018
1
1
Health risk assessment of selected heavy metals in some edible fishes from Gorgan Bay, Iran
21
34
FA
H.
Alipour
Young Researchers and Elite Club, Bojnourd Branch, Islamic Azad University, Bojnourd, Iran
hossein.alipour@yahoo.com
Y
Gh.R.
Banagar
Department of Environmental Sciences, Bojnourd Branch, Islamic Azad University, Bojnourd, Iran
N
The objective of this study was to assess the bioaccumulation of heavy metals (Cd, Pb, Cr and Fe) in the muscles of five fish species (Sander lucioperca, Liza auratus, Alosa caspia, Cyprinus carpio and Liza saliens) from Gorgan Bay in the south-eastern Caspian Sea, in order to determine the value daily intake of heavy metals by consumption of fish and human health risk assessment. The concentration of metals was estimated using graphite furnace atomic absorption spectrometer. Potential health risk assessments based on estimated daily intake (EDI) values and target hazard quotient (THQ) indicated that the intakes of metals by consuming these fish species do not result in an appreciable hazard risk for the human body. The hazard index (HI) calculated was lower than 1 for all the species. However, the results indicate that the high concentrations of Pb (in the muscle of L. auratus) and Fe in all fish is alarming.
Heavy metal, Fish, Gorgan Bay, EDI, THQ
http://jifro.ir/article-1-3266-en.html
http://jifro.ir/article-1-3266-en.pdf
Iranian Fisheries Research Organization
Iranian Journal of Fisheries Sciences
1562-2916
17
1
2018
1
1
Effects of probiotic (Pediococcus acidilactici) on growth and survival of kutum (Rutilus kutum) fingerlings
35
46
FA
A.R.
Valipour
Inland Waters Aquaculture Research Center , Iranian Fisheries Science Research Institute (IFSRI), Agricultural Research Education and Extension Organization (AREEO), Bandar Anzali, Iran
valipour40@gmail.com
Y
N.
Hamedi Shahraki
Science and Research Branch, Islamic Azad University, Rasht, Iran
N
H.
Abdollahpour biria
Department of Fisheries, Talesh Branch, Islamic Azad University, Talesh, Iran
N
In the present study effects of different levels of probiotic Pediococcus acidilactici, on growth performance and survival rate of Rutilus kutum fingerlings were investigated. Kutum fingerlings with a mean weight of 1±0.235 g were reared for 8 weeks in 500-l fiberglass tanks (15 fish per tank) with 4 diet treatments (3 replicates for each). Treatments included 1×109, 2:1×109, 3×109 CFU kg-1 dry food and a control without probiotic. At the end of the study, specific growth rate (SGR) and survival rate (SR) were significantly higher in treatments supplemented with probiotic compared to the control (p<0.05), while the fish fed with probiotics showed lowest food conversion ratio (FCR) (p<0.05). The results indicated that the use of 3× 109 CFU kg-1 dry food probiotics improved growth parameters and survival rate in R. kutum fingerlings.
Rutilus kutum, Probiotic, Pediococcus acidilactici, Growth, Survival
http://jifro.ir/article-1-3267-en.html
http://jifro.ir/article-1-3267-en.pdf
Iranian Fisheries Research Organization
Iranian Journal of Fisheries Sciences
1562-2916
17
1
2018
1
1
Population structure of banana shrimp, Penaeus merguiensis De Man, 1888 in the Strait of Hormoz, Persian Gulf
47
66
FA
M.
Momeni
Fisheries Department, University of Hormozgan, Bandar Abbas, Iran.
N
E.
Kamrani
Fisheries Department, University of Hormozgan, Bandar Abbas, Iran.
ezas47@gmail.com
Y
M.
Safaie
Fisheries Department, University of Hormozgan, Bandar Abbas, Iran.
N
F.
Kaymaram
Iranian Fisheries Science Research Institute (IFSRI), Agricultural Research Education and Extension Organization (AREEO), P.O. Box: 14965/149. Tehran, Iran.
N
Monthly length frequency data of banana shrimp, Penaeus merguiensis were collected from the coastal waters of the north east of the Persian Gulf, from January 2012 to January 2013. Software package FiSAT was used to analyze the length frequency data. Growth parameters, mortalities, exploitation rate and recruitment pattern were estimated from the carapace length in the area. Based on length – weight relationships, the estimated parameter a was 0.0015 for males and females and b was 2.8015 for males and 2.7852 for females. The estimated growth parameters: L∞=39.5 mm, K=1.8 year−1 and t0=-0.08 year−1 for males and L∞=50 mm, K=1.5 year−1 and t0=-0.09 year−1 for females. Longevity was estimated 1.67 and 2.00 years for males and females, respectively. The estimated mortality coefficients, were Z=5.9 (4.89 – 6.92) year−1 (α=0.05), M=2.9 year−1 and F=3.0 year−1 for males and Z=5.7 (4.94–6.37) year−1 (α=0.05), M=2.5 year−1 and F=3.2 year−1 for females. The length at first capture, Lc estimated from the probability of capture routine was 23.3 mm for males and 24.2 mm for females. Sex ratio (M:F=1.1:1) was significantly different to 1:1. The exploitation rates of shrimp were 0.49 and 0.56 for males and females, respectively which could get higher because the survival of spawning stock after the fishing season is related to environmental factors and has less effect on the next year’s biomass. Recruitment was continued throughout the year but with one major peak in July to November.
Penaeus merguiensis, Population dynamics, Persian Gulf.
http://jifro.ir/article-1-3268-en.html
http://jifro.ir/article-1-3268-en.pdf
Iranian Fisheries Research Organization
Iranian Journal of Fisheries Sciences
1562-2916
17
1
2018
1
1
Genetic analysis of the complete G gene of viral hemorrhagic septicemia virus (VHSV) genotype Ie isolates from Turkey
67
73
FA
H.
Albayrak
Department of Virology, Faculty of Veterinary Medicine, Ondokuz Mayis University, Samsun, Turkey
harun.albayrak@omu.edu.tr
Y
H.
Isidan
Department of Virology, Faculty of Veterinary Medicine, Cumhuriyet University, Sivas, Turkey
N
G.
Kalayci
Department of Virology, Bornova Veterinary Control Institute, İzmir, Turkey
N
E.
Ozan
Department of Virology, Veterinary Control Institute, Samsun, Turkey
N
V.N.
Vakharia
Institute of Marine and Environmental Technology, University of Maryland Baltimore County, Baltimore, MD, 21202, USA
N
Viral hemorrhagic septicemia virus (VHSV) is an enveloped non-segmented, single-stranded, negative-sense RNA virus that belongs to the Novirhabdovirus genus of the family Rhabdoviridae. This virus causes economically significant diseases in farmed rainbow trout, in Turkey, which is often associated with the transmission of pathogens from European resources. In this study, moribund rainbow trout (Oncorhynchus mykiss) samples were collected during an outbreak of VHSV in a rainbow trout fish farm in Bolu Province of Turkey in 2006. In addition, two VHSV strains were isolated from wild turbot (Scophthalmus maximus) in Trabzon Province of the Black Sea region of Turkey during a field survey. We have sequenced the full-length glycoprotein (G) gene of three VHSV isolates and compared them with 25 previously published gene sequences. Based on a complete gene nucleotide sequence, Turkish VHSV isolates were classified into class Ie of genotype I, which is closely related to GE-1.2 isolate (97.1-97.5% nucleotide identity and 98.2-98.4% amino acid identity) found in Georgia more than 30 years ago. These isolates could be an indigenous type of VHSV distributed in the Black Sea. On the other hand, Turkish isolates have 97.5-97.6% nucleotide identity and 98.8-99% amino acid identity with Finnish, Danish, and Norwegian isolates which are classified under Ib and Id. These results suggest that Turkish VHSV isolates may have orginated from Europe and co-circulated with indigenous strains which can threaten the aquaculture industry in Turkey.
Genotype, Rainbow trout, Turbot, Turkey, VHSV
http://jifro.ir/article-1-3269-en.html
http://jifro.ir/article-1-3269-en.pdf
Iranian Fisheries Research Organization
Iranian Journal of Fisheries Sciences
1562-2916
17
1
2018
1
1
Essential fish habitats (EFH) of small pelagic fishes in the north of the Persian Gulf and Oman Sea, Iran
74
94
FA
A.
Salarpouri
Fisheries Department, Faculty of Marine Science and Technology, Hormozgan University, Bandar Abbas, Iran. P.O. Box; 3955
N
E.
Kamrani
Fisheries Department, Faculty of Marine Science and Technology, Hormozgan University, Bandar Abbas, Iran. P.O. Box; 3955
ehsan.kamrani@hormozgan.ac.ir
Y
F.
Kaymaram
Iranian Fisheries Science Research Institute (IFSRI), Agricultural Research Education and Extension Organization (AREEO), P.O. Box: 14965/149. Tehran, Iran.
N
R.
Mahdavi Najafabadi
Department of Natural Resources Engineering, Hormozgan University, Bandar Abbas, Iran.
N
Small pelagic fishes particularly anchovy (Encrasicholina punctifer) and sardine (Sardinella sindensis) have an important role to support the Iranian fisheries and are distributed along the coastal waters of the Persian Gulf and Oman Sea. Using a logbook on small pelagic fisheries, a GIS-based environmental modeling approach was applied to investigate the presence and abundance of anchovy and sardine in relation to environmental variables. Redundancy analysis (RDA) was applied to provide a preliminary view of the relationships between fish presence/absence and environmental variables. Generalized Additive Models (GAMs) indicated the presence/absence of fish was related to distance from the nearest coast, depth, sea surface Chlorophyll-a, and SST. Results of the EFH showed that sardine is concentrated in specific areas of more favorable conditions, such as north of the Persian Gulf and all areas of the northwest of the Oman Sea. However, EFH of anchovy showed a more widespread distribution, occupying most of the north-west of the Oman Sea coastal waters, south of Qeshm Island in the Strait of Hormoz as well as the Parsian district in the north of the Persian Gulf. In this study, it seems that the anchovy showed the probability of presence in the areas with more distance from the coastal waters. However, the EFH probability presences of sardine were predicted for near coastal water and obviously, shallower waters. Due to the development of small pelagic fisheries, it is highly recommended to investigate anchovy and sardine fishing possibility in areas with high EFH prediction probability.
Small pelagic fishes, Essential fish habitat, Marine environment, Persian Gulf, Oman Sea.
http://jifro.ir/article-1-3270-en.html
http://jifro.ir/article-1-3270-en.pdf
Iranian Fisheries Research Organization
Iranian Journal of Fisheries Sciences
1562-2916
17
1
2018
1
1
Effects of essential oils of Satureja bachtiarica and Nigella sativa on the efficacy of lactococcosis vaccine in rainbow trout (Oncorhynchus mykiss)
95
106
FA
M.
Raissy
Department of Aquatic Animal Health, Faculty of Veterinary Medicine, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran.
mehdi.raissy@iaushk.ac.ir
Y
S.
Hashemi
Faculty of Veterinary Medicine, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran.
N
M.
Roushan
Faculty of Veterinary Medicine, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran.
N
M.
Jafarian
Faculty of Veterinary Medicine, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran.
N
H.
Momtaz
Faculty of Veterinary Medicine, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran.
N
M.
Soltani
Department of Aquatic Animal Health, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
N
E.
Pirali Kheirabad
Department of Fisheries Science, College of Natural Resources and Earth Sciences, University of Shahrekord, Shahrekord, Iran.
N
Lactococcosis has been defined as acute septicaemia, which causes economic losses in farmed fish, especially in rainbow trout. This study was done to evaluate the effects of the essential oils of Satureja bachtiarica and Nigella sativa on the efficacy of lactococcosis vaccine in rainbow trout. A total number of 270 fishes with a mean weight of 120 g were obtained; they were randomly divided into nine groups, each with three replicates, after two weeks of adaptation. The groups were: no injection group, vaccine only group, DMSO injection group, vaccine with 50, 100, and 200 micrograms Intraperitoneal injection (IP) injection. Two, four, and six weeks after vaccination, serological and haematological parameters were evaluated. In the sixth week, 1.7×107 cfu as LD50 96 hrs of Lactococcus garvieae were IP injected and the relative survival percentage was calculated. The results indicated that N. sativa essence is effective on the leukocyte population as the highest number of leukocytes were found in fish receiving high concentration of N. sativa. The relative survival rate of the studied fish decreased with decreasing concentrations of the N. sativa essential oil concentration, with a significant difference with control groups (p<0.05). However, using S. bachtiarica was not significantly effective on the relative survival rate of fish. The results of this study indicated that N. sativa essential oil can be used as adjuvant for L. garvieae vaccine, since it resulted in increasing leukocytes and the relative survival rate although S. bachtiarica was not effective on immune parameters of the studied fish.
Nigella sativa, Satureja bachtiarica, Streptococcosis, Lactococcosis, Adjuvant.
http://jifro.ir/article-1-3271-en.html
http://jifro.ir/article-1-3271-en.pdf
Iranian Fisheries Research Organization
Iranian Journal of Fisheries Sciences
1562-2916
17
1
2018
1
1
A comparative study on morphometric and meristic characters of Nemipterus japonicus (Bloch, 1791) in the coasts of India
107
117
FA
T.
Edwin Prabakaran
Department of Statistics, Loyola College, Chennai-600034
N
R.
Jeyasingh Thompson
Deptment of Statistics, Madras Christian College, Chennai-600059.
jeyasinghthompson.r@gmail.com
Y
V.
Deepak Samuel
UNDP, Gulf of Mannar Biosphere Reserve Trust, JawanBhavan, Ist Floor, Devipattinam Road, Kenikarai, Ramanathapuram, Tamilnadu, 623 501 India
N
A total of 200 threadfin bream Nemipterus japonicus was collected from Chennai in the east coast and Kochi in the west coast during January to February 2013 and studied for their morphometric and meristic characters. In total, 21 characters were analyzed out of which 3 characters namely dorsal, ventral and anal fins were not considered since they were unaltered. The findings indicate that 91% of the total variation in the data can be accounted for by three clusters. Small values of 1-R**2 ratio for the three clusters obtained indicate good clustering. The small values of p (≤0.0001) indicate that there are significant differences in the variables of Chennai and Kochi data which are shown through MANOVA. This might depict that the fish of Chennai and Kochi might be of 2 different stocks. Moreover, the study has also aided in identifying the importance of regular monitoring of stock assessment and the biology of commercially important fishes.
Nemipterus japonicus, Threadfin bream, Biometric study, Coastal area, India, Morphometric, Meristic characters
http://jifro.ir/article-1-3272-en.html
http://jifro.ir/article-1-3272-en.pdf
Iranian Fisheries Research Organization
Iranian Journal of Fisheries Sciences
1562-2916
17
1
2018
1
1
Changes in length-weight relationship and condition factor of Talang queenfish (Scomberoides commersonnianus) in the north-west Persian Gulf
118
136
FA
S.Z.
Masoomizadeh
Faculty of Biological Sciences, Department of Marine Biology, Shahid Beheshti University, Evin, Tehran, Iran
N
J.
Pazooki
Faculty of Biological Sciences, Department of Marine Biology, Shahid Beheshti University, Evin, Tehran, Iran
Pazooki2001@sbu.ac.ir
Y
T.
Valinassab
Iranian Fisheries Science Research Institute (IFSRI), Agricultural Research Education and Extension Organization (AREEO), P.O. Box: 14965/149. Tehran, Iran.
N
The present study, which was conducted on Scomberoides commersonnianus as one of the commercially important fishes of Carangidae, seeks to investigate changes of length-weight relationships in different sexes, seasons and length classes and to calculate condition factor of Talang queenfish. In this study, 563 specimens (292 males, 247 females, and 24 of unknown sex) were collected from the north-west of the Persian Gulf from Oct. 2011 to Jan. 2013. Length-weight relationships and condition factor were determined for each sex in four length classes within different seasons. In general, the growth pattern in this fish was negatively allometric and the length-weight relationship in combined sexes amounted to W=2.9109FL-1.8424. The growth pattern of combined sexes was negatively allometric in spring and autumn and isometric in summer and winter. Also, growth pattern was positively allometric in 8-31 class, negatively allometric in the 31-54 cm and 54-77 cm classes and isometric in the 77-100 cm class among all specimens. Also, the condition factor in males exceeded that of females in spring, autumn and winter; however, it was greater in females than in males during summer. In this season, females were in better condition owing to an increase in the weight of ovaries. The results demonstrate that growth pattern and condition factor vary in different seasons, lengths and sexes probably because of change in feeding intensity and the time of reproduction.
Scomberoides commersonnianus, Length-weight relationship, Condition factor, Persian Gulf
http://jifro.ir/article-1-3273-en.html
http://jifro.ir/article-1-3273-en.pdf
Iranian Fisheries Research Organization
Iranian Journal of Fisheries Sciences
1562-2916
17
1
2018
1
1
Feeding habits and trophic level of Himantura gerrardi (Elasmobranchii; Dasyatidae) in northern Oman Sea: effects of sex and size class
137
150
FA
A.R.
Rastgoo
Department of Marine Biology, Tehran Science and Research Branch, Islamic Azad University, Tehran, Iran.
N
S.M.R.
Fatemi
Department of Marine Biology, Tehran Science and Research Branch, Islamic Azad University, Tehran, Iran.
N
T.
Valinassab
Iranian Fisheries Science Research Institute (IFSRI), Agricultural Research Education and Extension Organization (AREEO), P.O. Box: 14965/149. Tehran, Iran.
t_valinassab@yahoo.com
Y
M.S.
Mortazavi
Persian Gulf and Oman Sea Ecological Center, Iranian Fisheries Science Research Institute (IFSRI), Agricultural Research Education and Extension Organization (AREEO), Bandar Abbas, Iran.
N
The feeding habits and trophic level of Himantura gerrardi were studied according to sex and size classes of 80 individuals obtained using bottom trawl between May and December 2014 from the Oman Sea. Collected specimens were divided into three size classes (small<38 cm, medium 38-58 cm and large>58 cm) based on disk width. Prey was identified in seven main zoological categories, where crustacean and polychaetes were the dominant in diets, indicating this species is a demersal dwelling species. No significant differences were observed between sexes, but size classes showed significant differences in their diets. Also, results showed a decrease in feeding overlap between size classes with an increase in disk width, suggesting that intraspecific competition reduced, which allows the coexistence of different size classes. Trophic level was positively correlated with the disk width, which was lower than 4.0 for both sexes and different size classes, placing it in an intermediate trophic level.
Dasyatidae, Himantura gerrardi, Feeding habits, Trophic level, Oman Sea.
http://jifro.ir/article-1-3274-en.html
http://jifro.ir/article-1-3274-en.pdf
Iranian Fisheries Research Organization
Iranian Journal of Fisheries Sciences
1562-2916
17
1
2018
1
1
Molecular diversity of Symbiodinium spp. within six coral species in Larak Island, the Persian Gulf
151
161
FA
H.
Dehghani
Department of Marine Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
N
P.
Ghavam Mostafavi
Department of Marine Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
gh.mostafavi@gmail.com
Y
S.M.R.
Fatemi
Department of Marine Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
N
J.
Fallah Mehrabadi
Department of Biology, School of Basic Science, University of Qom, Qom, Iran
N
Reef-building coral harbor communities of photosynthetic taxa of the genus Symbiodinium (zooxanthellae). The genus Symbiodinium is currently classified into nine genetic clades (A–I). Various corals harbor different Symbiodinium clades; some show specificity to a single strain. Coral and their zooxanthellae are sensitive to environmental stresses. In the Persian Gulf, coral reefs are subject to harsh environmental conditions including extreme temperatures and high salinity. This is the first study to use clade specific primers to clarify the diversity of Symbiodinium in each coral species of Larak Island. For this purpose six coral species were collected at two different locations in Larak Island. After DNA extraction, PCR amplification was performed using clade specific primers. The results showed that multiple Symbiodinium clades are hosted by most coral species. In addition, among thirteen obtained Symbiodinium sequences, the frequency of either tree clades, A, C and D was almost the same. Corals species may contain different clades of Symbiodinium depending on the region and on the tolerance characteristics of each clade. Thus, knowledge of zooxanthellae diversity associated with scleractinian can contribute to a better understanding of the sensitivity of corals to environmental conditions.
Persian Gulf, Symbiodinium, Clade A, Clade C, Clade D.
http://jifro.ir/article-1-3275-en.html
http://jifro.ir/article-1-3275-en.pdf
Iranian Fisheries Research Organization
Iranian Journal of Fisheries Sciences
1562-2916
17
1
2018
1
1
Comparison of antibiotics and bacteriocins antibacterial activity on Xanthomonas citri subsp.citri
162
178
FA
D.
Gholami
Department of Bioprocess Engineering, National Institute for Genetic Engineering and Biotechnology, Tehran, Iran
N
S.
Aminzadeh
Department of Bioprocess Engineering, National Institute for Genetic Engineering and Biotechnology, Tehran, Iran
aminzade@nigeb.ac.ir
Y
S. M.
Alavi
Department of Bioprocess Engineering, National Institute for Genetic Engineering and Biotechnology, Tehran, Iran
N
N.
Kazemipour
School of Veterinary Medicine, Shiraz University, Shiraz, Iran
N
A.
Ghoroghi
Iranian Fisheries Science Research Institute (IFSRI), Agricultural Research Education and Extension Organization (AREEO), P.O. Box: 14965/149. Tehran, Iran.
N
Z.
Emruzi
Department of Bioprocess Engineering, National Institute for Genetic Engineering and Biotechnology, Tehran, Iran
N
Citrus canker is a citrus disease species created by the bacterium Xanthomonas citri subsp.citri. Many citrus, such as oranges, lime, and grapefruit are affected by the infectious bacteria and stems, leaves and fruits are experiencing loss. In this experiment antibacterial effects of five kinds of antibiotics including ampicillin, kanamycin, chloramphenicol, penicillin, streptomycin, Cronobacteriocin DGH2 and Enterobacteriocin DGH4 were evaluated on 107 strains of Xanthomonascitri subsp.citri. MIC and MBC data for antibiotics and bacteriocins against Xanthomonas strains were performed. According to this project, Xanthomonas strains were comparatively susceptible and resistant to Cronobacteriocin DGH2, Enterobacteriocin DGH4, ampicillin, kanamycin, chloramphenicol, penicillin and streptomycin. NIGEB-183 strain is the most sensitive to these antibiotics and bacteriocins. However, only the NIGEB-242R1 strain is resistant to chloramphenicol. Penicillin has minimum inhibitory effects on Xanthomonas strains. Based on this case study, chloramphenicol is the most antibacterial activity among antibacterial agents and this compound is a good candidate for inhibitory activity. Cronobacteriocin DGH2 has a moderate antibacterial activity against Xanthomonas strains.
Antibiotics, Bacteriocins, Citrus canker, MIC and MBC data, Xanthomonas citri subsp.citri
http://jifro.ir/article-1-3276-en.html
http://jifro.ir/article-1-3276-en.pdf
Iranian Fisheries Research Organization
Iranian Journal of Fisheries Sciences
1562-2916
17
1
2018
1
1
Trophic level, food preference and feeding ecology of Rachycentron canadum (Linnaeus, 1766), in Hormuzgan Province waters (northern Persian Gulf and Oman Sea)
179
193
FA
S.
Behzadi
Fisheries Department, Faculty of Marine Science and Technology, Hormozgan University, Bandar Abbas, Iran. P.O. Box; 3955
N
E.
Kamrani
Fisheries Department, Faculty of Marine Science and Technology, Hormozgan University, Bandar Abbas, Iran. P.O. Box; 3955
ezas47@gmail.com
Y
F.
Kaymaram
Iranian Fisheries Science Research Institute (IFSRI), Agricultural Research Education and Extension Organization (AREEO), P.O. Box: 15745/133. Tehran, Iran.
N
M.Sh.
Ranjbar
Department of Marine biology, Hormozgan University, Bandar Abbas, Iran. P.O.Box; 3955.
N
This study examined the ecological factors associated with feeding in Rachycentron canadum (cobia) in the waters of Persian Gulf and Oman Sea. Seasonally variation of stomach condition of cobia male, females, pooled and size wise were analyzed. In general, 577 cobia were collected (340 males, 237 females) (20–161 cm Total length) from Sept. 2014 to Sept. 2015 by the Ferdows-1 survey ship and from the landing areas in Bandar Abbas harbor seasonally. Our results provide the first estimates of trophic level (Tr.L) (4.32±0.76, mean±Se), consumption per biomass (Q/B) (6.13), and aspect ratio of the caudal fin (ARc.f) (3.1) for R. canadum in the Hormuzgan Province. We also found that bony fish made up more than 80 percent of the relative importance of particular prey (IRI %), indicating R. canadum primarily preys on these species. The immature group (20–40 cm,T.L), tended to feed on Penaeidae family, small crabs, and mollusks. Hierarchical clustering revealed that the frequencies of different types of prey could be applied to categorize the length classes into three levels. The result of this study revealed that the immature group and the 20-40 cm length class tended to feed on Penaeidae family, crabs, and mollusks. Also, we found that males generally fed more than females in all seasons and that R. canadum had an average dietary intake. The findings of this study can be used to prepare a food formulation for cobia that resembles the native diet.
Rachycentron canadum, Feeding Ecology, Trophic level, Consumption per biomass Persian Gulf and Oman Sea
http://jifro.ir/article-1-3277-en.html
http://jifro.ir/article-1-3277-en.pdf
Iranian Fisheries Research Organization
Iranian Journal of Fisheries Sciences
1562-2916
17
1
2018
1
1
Age, growth and spawning season of Luciobarbus esocinus Heckel, 1843 in Gamasiab River, Iran
194
207
FA
M.
Hajiahmadian
Natural resources faculty, Urmia University, Urmia, Iran
N
M.
Rabbaniha
Iranian Fisheries Science Research Institute (IFSRI), Agricultural Research, Education and Extension Organization (AREEO), Tehran- Iran
N
H.
Ghafari Farsani
Young Researchers and Elite Club, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
N
M.H.
Gerami
Young Researchers and Elite Club, Shiraz Branch, Islamic Azad University, Shiraz, Iran
m.h.gerami@gmail.com
Y
S.
Shahbazi Naserabad
Young Researchers and Elite Club, Yasooj Branch, Islamic Azad University, Yasooj, Iran
N
In the current paper reproductive strategy and growth rates of Luciobarbus esocinus were investigated from 2010 to 2012, in Gamasiab River, Kermanshah, Iran. Samples were collected seasonally by gillnet and electro-fisher device. Sex ratio was evaluated from 162 individuals and the percentage of male and female individuals were 54.76% and 45.24% respectively. Age structure was distributed between I and V and most frequency numbers for males and females belonged to II and IV age group, respectively. Length-weight relationship was computed as W=8E-05TL2.6546 for all individuals. Mean total length and weight was 333.82±13.10 mm and 297.67±4.85 g for males, and 371.5±21.17 mm and 307.85±7.64 g for females. The von-Bertalanffy growth models of L. esocinus were described as Lt =357.14×[1-e (-0.77× (t –0.090))] for males, Lt =367.02×[1-e (-0.78× (t –0.094))] for females and Lt =363.57×[1-e (-0.76× (t –0.087))]for both sexes. Results indicated that growth factors were highly similar in spring, summer and winter. CDA analysis revealed that the total and gonad weight are the main factors in discriminant analysis. The highest GSI values were found in spring for females and winter for males, however, it decreased rapidly after spring in females. Maximum growth rates were observed in early ages (I-II) and depleted with ages. K value and L∞ were determined as 0.77±0.09 Y-1 and 357.14±10.38 mm for males and 0.78±0.24 Y-1 and 367.02±24.15 mm for females, respectively. In conclusion this study provided basic information for stock assessment and management of L. esocinus in Gamsiab Reservoir.
Life-history styles, Reproduction, Mangar, Iranian inland waters
http://jifro.ir/article-1-3278-en.html
http://jifro.ir/article-1-3278-en.pdf
Iranian Fisheries Research Organization
Iranian Journal of Fisheries Sciences
1562-2916
17
1
2018
1
1
Meristic variations and skeletal deformities in natural population of mahseer fish, Tor putitora (Hamilton, 1822).
208
216
FA
Z.
Majeed
Department of Biotechnology, University of Azad Jammu and Kashmir, Chellah Campus, Muzaffarabad, 13100, Azad Kashmir, Pakistan.
zahidfdb@gmail.com
Y
Z.
Ajab
Animal Physiology Laboratory, Department of Zoology, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi 46300, Pakistan.
N
A.
Zuberi
Department of Biological Science, Quaid-i-Azam University, Islamabad 44000, Pakistan
N
S.
Akthar
Animal Physiology Laboratory, Department of Zoology, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi 46300, Pakistan.
N
A
Muhammad
Department of Zoology, Faculty of Basic and Applied Sciences. University of Poonch, Rawalakot, Azad Jammu and Kashmir, Pakistan.
N
Skeletal deformities seriously relegate the biological performance of fish. The frequency of occurrence of different types of meristic variations and skeletal deformities were seen in the population of mahseer fish, Tor putitora, in two main reservoirs; Korang Stream, Islamabad and Dhobi Ghat Stream, Hassan Abdal. A total of ninety-five fish were caught randomly, forty-five from the unpolluted Korang Stream and fifty from the polluted Dhobi Ghat Stream by cast nets from February to July, 2009. Radiographs and dry skeletal preparation techniques were used to record meristic variations and skeletal deformities and describe various types and frequency of appearance. Deformities were studied under categories, Highest Frequency of Occurrence (HFO), Normal Frequency of Occurrence (NFO) and Lowest Frequency of Occurrence (LFO). In the deformed fishes, significant (p<0.001) anomaly was noticed in nineteenth to twenty second and forty one to forty third (p<0.05) vertebrae of the vertebral column. Deformities scoliosis (C2, 5.26%), platyspondyly (C5, 11.27%), and abnormal neural spine (TC25, 13.53) appeared to affect 70%, 60% and 50% of the deformed individuals respectively. This study concluded that skeleton deformities in T. putitora population in the laundry waste water of Dhobi Ghat Stream have relevance with detergent waste, as a possible causative agent.
Meristic variations, Skeleton, Deformities, Tor putitora
http://jifro.ir/article-1-3279-en.html
http://jifro.ir/article-1-3279-en.pdf
Iranian Fisheries Research Organization
Iranian Journal of Fisheries Sciences
1562-2916
17
1
2018
1
1
Effects of dietary diludine supplementation on growth, proximate composition, muscle and texture structure of rainbow trout juveniles
217
227
FA
O.
Hisar
Faculty of Marine Sciences and Technology, Çanakkale Onsekiz Mart University, Çanakkale-Turkey
N
M.M.
Karaoğlu
Faculty of Engineering, Department of Food Engineering, Atatürk University, Erzurum- Turkey
N
S.A.
Hisar
Faculty of Engineering, Department of Food Engineering, Çanakkale Onsekiz Mart University, Çanakkale-Turkey
N
T.
Yanik
Faculty of Fisheries, Atatürk University, Erzurum-Turkey
N
M.
Gürkan
Faculty of Art and Science, Department of Biology, Çanakkale Onsekiz Mart University, Çanakkale-Turkey
N
H.
Kaya
Faculty of Marine Sciences and Technology, Çanakkale Onsekiz Mart University, Çanakkale-Turkey
o_hisar@hotmail.com
Y
A feeding trial which lasted for eight weeks was conducted to investigate the effects of diludine, a growth promoter, on feed efficiency, muscle structure and proximate composition of juvenile rainbow trout. Diludine was added at 0.0(D0) 0.2(D1), 0.5(D2) and 1(D3) g kg-1 to a casein-based diet, and every diet was given to the triplicated groups of juvenile rainbow trout. At the end of experiment, it was determined that a significant improvability existed for both growth and feed utilization in fish fed diets supplemented with diludine (p<0.05). Similarly, different concentrations of diludine affected the densitometric quantification of myofibrillar proteins in fish muscle according to results obtained by Sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE). The mean value of fiber diameters significantly increased in skeletal muscle with increasing concentrations of diludine. The histological results also showed hypertrophic adipocytes in skeletal muscle of fish fed D2 and D3 diets. The lowest elasticity values were observed in fish fed the control diet while those fed D3 diet had highest elasticity values. On the other hand, no differences were found between fish fed experimental diets in terms of survival rate and all fish exhibited similar proximate composition for protein, lipid, moisture and ash. Consequently, it may be suggested that dietary diludine supplementaion up to 1 g kg-1 concentration in the diets have positive impacts on growth of rainbow trout juvenils and the better growth in the fish fed with diludine supplements could be arise from muscle characteristics, in particular changes in fibres than proximate composition of the muscles.
Diludine, Growth, Muscle structure, Texture, Sodium dodecyl sulfate polyacrylamide gel electrophoresis, Trout
http://jifro.ir/article-1-3280-en.html
http://jifro.ir/article-1-3280-en.pdf
Iranian Fisheries Research Organization
Iranian Journal of Fisheries Sciences
1562-2916
17
1
2018
1
1
Evaluation of ecological status of the Persian Gulf inshore waters (Hormozgan rocky bottoms) using macrophytic communities and a macroalgae biological index, EEI
228
238
FA
Z.
Alavian
Marine Division, Department of Environment, Tehran, Iran.
N
H.
Riahi
Department of Biology, Science Branch, Shahid Beheshti University, Tehran, Iran.
N
R.
Musavi Nadushan
Department of Marine Biology, Tehran North Branch, Islamic Azad University, Tehran, Iran.
Mousavi.nadushan@gmail.com
Y
B.
Reeisi
Department of Mathematic, Shahed University, Tehran, Iran.
N
S.M.R.
Fatemi
Department of Marine Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran.
N
Marine benthic macrophytes (seaweed and seagrasses) are key structural and functional components of some of the most productive ecosystems of the world. They absorb nutrients through their surface directly from the marine environment and thus they are very important biological elements for the estimation of ecological status, representing reliable indicators of coastal waters. The aim of this study was to assess the ecological status and trophic level of Hormozgan rocky bottoms according to Ecological Evaluation Index (EEI) .Sampling was done bi-monthly at seven stations at the intertidal rocky shores, west of Hormozgan Province. In this study a total of 63 species were identified, of which 15 species from seven genera belonged to green algae; 16 species from five genera belonged to brown algae; and 32 species from nine genera belonged to red algae. Coverage data of macroalgae and EEI indicate a high level of eutrophication for Saieh khosh, and Bostaneh, They are classified as zones with bad and poor ecological status, respectively. Also it has been proved that concentrations of biogenic elements and phytoplankton blooming are higher in these zones. The best values of the estimated metrics at Tahooneh and Michaeil could be explained with the good ecological conditions in those zones and the absence of pollution sources close to those transects. The values of abundance of macroalgae and EEI indicate moderate ecological conditions for Koohin, Lengeh and Chirooieh.
Ecological evaluation index, Trophic Level, Inshore waters, Macroalgae
http://jifro.ir/article-1-3281-en.html
http://jifro.ir/article-1-3281-en.pdf
Iranian Fisheries Research Organization
Iranian Journal of Fisheries Sciences
1562-2916
17
1
2018
1
1
Short communication:Identification of by-catch species of tuna purse seiners in Iranian waters of Oman Sea
239
243
FA
M.
Parsa
Faculty of Marine Sciences and Technologies, University of Hormozgan, Bandar Abbas, Iran
N
E.
Kamrani
Faculty of Marine Sciences and Technologies, University of Hormozgan, Bandar Abbas, Iran
eza47@gmail.com
Y
M.
Safaei
Faculty of Marine Sciences and Technologies, University of Hormozgan, Bandar Abbas, Iran
N
S.Y.
Paighambari
Environmental and Fisheries Department, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
N
T.
Nishida
National Research Institute of Far Seas Fisheries, Fisheries Research Agency, Shimizu, Shizuoka, Japan
N
One of the most visible direct impacts of fishing is the capture of non-target species, known collectively as by-catch. By-catch includes species that are unwanted and discarded (discards) and species that are retained and sold (byproduct) (Stobutzki et al., 2003).
By-catch, Tuna, Purse seine, Oman Sea
http://jifro.ir/article-1-3282-en.html
http://jifro.ir/article-1-3282-en.pdf
Iranian Fisheries Research Organization
Iranian Journal of Fisheries Sciences
1562-2916
17
1
2018
1
1
Short communication:Study on bioaccumulation of heavy metals (cadmium, nickel, zinc and lead) in the muscle of wels catfish (Silurus glanis) in the Anzali Wetland
244
250
FA
A.A.
Khanipour
Inland Water Aquaculture Research Center, Iranian Fisheries Science Research Institute (IFSRI), Agricultural Research Education and Extension Organization (AREEO), Anzali, Iran
aakhanipour@yahoo.com
Y
M.
Ahmadi
Inland Water Aquaculture Research Center, Iranian Fisheries Science Research Institute (IFSRI), Agricultural Research Education and Extension Organization (AREEO), Anzali, Iran
N
M.
Seifzadeh
Inland Water Aquaculture Research Center, Iranian Fisheries Science Research Institute (IFSRI), Agricultural Research Education and Extension Organization (AREEO), Anzali, Iran
N
After entering aquatic ecosystems, heavy metals accumulate in the organs and tissues of aquatics including fish and finally enter the food chain. These heavy metals can enter the human body through eating contaminated fish. Absorbance values and accumulation of heavy metals in aquatics especially the fish depend on ecological conditions, physical, chemical and biological factors of water, the element type, and the physiological state of the aquatic (Oryan et al., 2010).
Wels catfish, Heavy metals, Muscle edible tissue, Wetland
http://jifro.ir/article-1-3283-en.html
http://jifro.ir/article-1-3283-en.pdf