ORIGINAL_ARTICLE
The effect of different levels of vitamins C and E on the growth indices and survival in farmed sterlet (Acipenser ruthenus)
This study was conducted to assay the effects of different levels of dietary vitamins C and
E on growth indices in Acipenser ruthenus in International Sturgeon Research Institute. Nine
diets were supplemented with a combination of 0, 100 and 400mg/kg food vitamin C and 0,
100 and 400mg/kg food vitamin E and were fed to sterlets in 2 replicates during 15 weeks.
Two hundreds and seventy sterlets with the average weight of 350.92±14.28g were introduced
to 18 tanks (each tank 15 fish). The fish were fed with 3% of body weight per day. The results
showed that the highest and the lowest weight gain were in fish fed with diet containing
400mg/kg vitamin C and 0mg/kg vitamin E, respectively. The highest and the lowest Feed
Conversion Ratio (FCR) were measured in control and diet 100mg/kg vitamin C and
400mg/kg vitamin E. A significant difference was found in FCR between treatments. The
lowest and the highest amounts of Growth Rate (GR), Specific Growth Rate (SGR), Body
Weight Index (BWI), Food Efficiency (FE) and Protein Efficiency Ratio (PER) were found in
control and treatment 100mg/kg vitamin C and 400mg/kg vitamin E, respectively. This
difference was significant between the treatments. In conclusion vitamins C and E have an
important role in enhancement of growth performance and feed efficiency of sterlet.
https://isfj.areeo.ac.ir/article_110034_895604b60735abc2a6576270a61686aa.pdf
2012-06-21
1
12
10.22092/isfj.2017.110034
Sterlet (Acipenser ruthenus)
Vitamins C and E
growth indices
M.
Tatina
mostafa_tatina@yahoo.com
1
LEAD_AUTHOR
R.
Taati
2
AUTHOR
M.
Bahmani
mahmoudbahmani@ymail.com
3
AUTHOR
M.
Soltani
4
AUTHOR
M.
Gharibkhani
5
AUTHOR
ORIGINAL_ARTICLE
Application of gelatin coating incorporated with cinnamon essential oil on shelf life of rainbow trout (Oncorhynchus mykiss) fillet in refrigerated storage
In this study, the effect of gelatin coating enriched with cinnamon oil for fresh fillet of
rainbow trout on microbial were studied, chemical and sensory characteristics during storage
at refrigerator condition. Fish fillet were treated in gelatin solution (4 percent) containing
cinnamon oil and were stored in refrigerator. Total viable count was acceptable (7 log CFU/g)
for coated fillets with gelatin coating containing cinnamon essential oil on day 15, but the
control fillets also those that were covered with gelatin receipt to 7.88 and 7.44, respectively.
In the tenth day. Psychrotrophic count values for the control and gelatin coated fillets
significantly were increased more than other treatment. Total volatile bases nitrogen and
Thiobarbituric acid values in gelatin with cinnamon coated fillet were less than other
treatment. In general, results suggest successful inhibition microbial growth in refrigerated
rainbow trout fillet is possible with gelatin incorporated cinnamon coating, as together they
kept the sensory characteristics within acceptable limits throughout storage. Gelatin coating
together with cinnamon oil provides a type of active coating that can be utilized as a safe
preservative for fish under refrigerated storage.
https://isfj.areeo.ac.ir/article_110035_9e028ff5599586f7426f870616ca4c30.pdf
2012-06-21
13
24
10.22092/isfj.2017.110035
Food Processing
Cinnamon essential oil
Bacteria
Fish meat
Rainbow trout
Shelf life
GH.
Taghizadeh Andevari
1
AUTHOR
M.
Rezaei
rezai_ma@modares.ac.ir
2
LEAD_AUTHOR
ORIGINAL_ARTICLE
An investigation on fish parasites in Hanna Wetland, Semirom, Isfahan Province
As a part of a major ecological study of Hanna Wetland, Semirum Region, Isfahan
Province, parasitic infestation of 3 native and one introduced fish species were investigated. A
total of 120 fish specimens were collected by both cast net and a series of gillnets between fall
and winter 2007, and spring and summer 2008. Some of the observed parasites are reported
for the first time as new host records of: Trichodina perforata on gill and skin of Carassius
auratus auratus and three species of leeches namely: Glossiphonia heteroclite, Thromyzon
tessulatum and Hemiclepsis marginata on the skin and fin bases of Capoeta damascina.
Moreover, 14 internal and external parasites including: one protozoan Ichthyophthirius
multifiliis and two myxosporeans Myxobolus varicorhini, Myxobolus sp., three monogeneans
Dactylogyrus lenkoran, Dactylogyrus intermedius and Gyrodactylus sp., two immature
digeneans Diplostomum spathaceum, Tylodephys sp., two mature digeneans Allocreadium
isoporum and A. layman, one unknown cyst, one Acanthocephalan
Acanthocephalorhynchoides sp., one cestoda Khawia armeniaca. The highest prevalence of
Diplostomum spathaceum (100%) was observed in Aphanius isfahanensis and Alburnus sp.
However, the lowest prevalence was related to A. layman in Capoeta damascina in winter
(0%), and autumn and spring (11%). Leeches infection were only observed in Capoeta
damascina and Alburnus sp. in winter and summer, respectively. The maximum average
(±SD) infection intensity belonged to K. armeniaca in intestine of C. damascina in spring
(12.50±3.40, range: 8-16). Among the parasites identified in the region, D. spathaceum
showed the highest mean (±SD) abundance (41.67±11.79) in C. auratus auratus in spring. In
general, a relatively high diversity of fish parasitic fauna exists in this water body which could
jeopardize fish populations and the whole ecosystem if the ecological status of the Hanna
Wetland is neglected.
https://isfj.areeo.ac.ir/article_110036_c7eabe1f842af1371619e0b2176cfa5a.pdf
2012-06-21
25
38
10.22092/isfj.2017.110036
Parasites infection
Parasitic worms
Leech
Cyprinid fish
B.
Jalali
1
LEAD_AUTHOR
N.
Mahbobi Soofiani
soofiani@cc.iut.ac.ir
2
AUTHOR
S.
Asadollah
3
AUTHOR
M.
Barzegar
4
AUTHOR
ORIGINAL_ARTICLE
Effect of garlic extract on growth and survival rate in Litopenaeus vannami post larval
The effect of garlic extract on growth and survival rates of one day larvae of Litopenaeus
vannamei shrimp was tested for 12 days .Six nutritional treatments each with three replicates
were fed to shrimp larvae (average weight 0.0013g) including control treatment (unriched
Artemia nauplii) and second to sixth Artemia nauplii enriched with 200, 400, 600, 800 and
1000mg garlic extract per kg, respectively. The one way ANOVA results showed that all
treatments were different in terms of average weight and total length of larvae compared to
control group. Shrimps being fed by Artesia enriched with 200mg garlic extract per kg food
have the best growth, survival rates and length (0.0062mg, 81.6% and 10.6mm).
Group 3 with concentration of 400mg garlic extract per kg of feed followed by control
group showed better growth and survival rates in shrimp larvae than other treatments but the
lowest survival rate evaluated in shrimps fed by Artemia nauplii enriched with 600, 800 and
1000mg garlic extract per kg feed, orderly. Specific growth rates (SGR) for treatment groups
2 and 3 were higher compared to other groups.
https://isfj.areeo.ac.ir/article_110037_b149a74dd9866aebf49e7757b616c077.pdf
2012-06-21
39
46
10.22092/isfj.2017.110037
Medicinal plants
Aquaculture
Nutrition
Shrimp
M.
Javadzadeh
m_javadzadeh2011@yahoo.com
1
LEAD_AUTHOR
A.R.
Salarzadeh
reza1375bandar@yahoo.com
2
AUTHOR
M.
Yahyavi
maziar_yahyavi@yahoo.com
3
AUTHOR
M.
Hafezieh
jhafezieh@yahoo.com
4
AUTHOR
H.
Darvishpour
5
AUTHOR
ORIGINAL_ARTICLE
Integrated culture of white leg shrimp (Litopenaeus vannamei) with different densities of Nile tilapia (Oreochromis niloticus) in recirculation system
Recirculation water system in shrimp culture with objective of decline waste materials of
culture media and decreasing the disease is one of strategy which helping the shrimp
production. In this investigation, effects of different densities of Nile tilapia (Oreochromis
niloticus) culture with white leg shrimp (Litopenaeus vannamei) on growth, nutrients
conversion rate (nitrogen and phosphor) of shrimp biomass and production economy in
recirculation system were studied. Economical efficiency obtained according to final
harvested biomass (shrimp and tilapia), the price and other costs for each treatment.
Experiments were done in tanks with 6 treatments including: Culture shrimp with exchanged
water (T1), culture shrimp with recirculated water system (T2) and integrated culture of
shrimp with different densities of tilapia (T3- 0.01, T4- 0.025, T5- 0.05 and T6- 0.075
shrimp- tilapia ratio). The density of shrimp in all treatments was constant about 40/m2.
Shrimps were fed with commercial food pellet for 8 weeks. Tilapia was not fed during 7
weeks of experiment. Growth rate and total production of shrimp in T2 compared to that of
T5 and T6 and results showed significant differences. No significant differences were
detected with other treatments. Growth rate in T3 significantly increased compared to other
treatments. Nitrogen conversion rate of biomass (tilapia and shrimp) in all treatments except
T1 statistically demonstrated an increasing rate as the tilapia-shrimp ratio was increased.
Phosphor conversion ratio of biomass (tilapia and shrimp) showed an increment in T3, T4, T5
and T6 and was significantly different with T1 and T2. Production economy in T2 followed
by T4 was significantly increased compared with other treatments. The lowest economical
efficiency obtained in T5 and T6 and the highest found in T2. The results of present study
suggest that in integrated culture system (tilapia-shrimp), increasing tilapia densities may
have a direct significance effect on phosphor conversion rate improvement and an inverse
effect on nitrogen conversion and shrimp growth rates. Regarding to studied parameters,
decreasing the tilapia- shrimp ratio (0.01 and 0.025) increased nitrogen conversion rate with
no decrease in shrimp growth rate.
https://isfj.areeo.ac.ir/article_110038_c31d20478124f0a78377224fb2f28d2a.pdf
2012-06-21
47
64
10.22092/isfj.2017.110038
Aquaculture
Growth
Conversion rate
Economical efficiency
M.
Hafezieh
jhafezieh@yahoo.com
1
LEAD_AUTHOR
ORIGINAL_ARTICLE
Changes in growth and amino acid composition of Rutilus frisii kutum during larval development
The present study investigated changes in growth and amino acid composition Kutum
Rutilus frisii kutum during larval development. For this purpose, the periodic sampling from
larvae obtained from breeders propagation was carried out at the fish aquaculture center of
Shahid Rajaee in Sari. The samples were obtained at 1, 3, 7, 10, 15, 20, 25, 30, 35, 40 and 50
days after hatching (DAH). The result of larvae growth showed that mean initial and final
length of Kutum (1 DAH, 50 DAH) were 8.47±0.02mm and 35.34±0.41mm, respectively.
Initial and final weights were 4.02±0.01mg and 483.33±1.11mg, respectively. The
composition of total amino acids of Kutum larvae changed significantly during ontogeny.
High correlations were found between rotifers and dry food but correlations dry food was
higher than that rotifer. No major imbalance was found in essential amino acids profile of the
diet of fish larvae. Nevertheless, low correlation of rotifer to dry food in rotifer AA nutritional
balances was less than dry food. During this study, methionine, lysine, arginine, threonine and
histidine appeared to be limiting amino acids. These fatty acids showed the significant
difference between the amino acid profile in larva and the diet.
*Corresponding author
https://isfj.areeo.ac.ir/article_110039_510497aad59f9ca4dd5155bb72f9185d.pdf
2012-06-21
65
78
10.22092/isfj.2017.110039
Aquaculture
Nutrition
Diet
N.
Khosravi Bakhtiarvandi
1
AUTHOR
A.M.
Abedian Kenari
aabedian@modares.ac.ir
2
LEAD_AUTHOR
R.M.
Nazari
3
AUTHOR
Ch.
Makhdoomi
4
AUTHOR
ORIGINAL_ARTICLE
Assessment of total mercury bioaccumulation in white and red muscle and liver tissues of Cyprinus carpio collected from Sanandaj Gheshlagh Reservoir
Previous studies showed that the level of mercury in Sanandaj Gheshlagh Reservoir (SGR)
was higher than limits established by the World Health Organization. Total Mercury (T-Hg)
concentrations in white muscle, red muscle and liver tissues of Common carp as the most
consumed fish in the region were investigated. For the first time the content of mercury in red
muscle tissue was measured and compared with white muscle and liver tissues. During the
July to December 2009, 24 Common carp were caught from SGR (4 samples per month). THg
concentrations in above mentioned tissues were measured, using Mercury Analyzer. T-Hg
concentrations variations in white muscle, red muscle and liver tissues were (123-458), (115-
455) and (107-303) ng g-1, respectively. Statically significant differences were found between
three tissues. A significant monthly variations of T-Hg concentrations were observed within
liver tissue samples. Fish weights in this ranged between 330.1 to 753 grams. T-Hg in white
and red muscle tissues in all samples weighted above 500 grams were higher than the limits
established by the EPA. Therefore, additional researches are needed to evaluate any potential
effluence of this fish consumption on people health.
*Corresponding author
https://isfj.areeo.ac.ir/article_110040_c4403921e4174e779ce36acbb048854d.pdf
2012-06-21
79
88
10.22092/isfj.2017.110040
Heavy metal
Pollution
common carp
M.
Khoshnamvand
1
AUTHOR
Sh.
Kaboodvandpour
s.kaboodvandpour@uok.ac.ir
2
LEAD_AUTHOR
ORIGINAL_ARTICLE
Effect of astaxanthin pigment on growth performance, survival and pigmentation in postlarval stage of white leg shrimp, Litopenaeus vannamei
The aim of this reaserch was to study the effect of astaxanthin pigment on growth
performance (weight again, specific growth rate and final body weight), survival and pigment
accumulation in postlarvae of white leg shrimp. This study was carried out in spring 2011 at
Kolahi Aquatic Development Center. Some 8-day postlarvae with mean (±SD) initial weight
5.3±1.6mg were fed diets with containing various levels (0, 50, 100 and 200mg/kg diet) of
astaxanthin pigment for 30 days. Shrimp fed with diet without astaxanthin pigment served as
control. Shrimp fed diets containing 50, 100 and 200mg/kg astaxanthin, growth performance
and survival was significantly higher than control group. The pigment accumulation rate was
determined by high performance liquid chromatography (HPLC). The analysis of pigment
accumulation showed that the higher increasing astaxanthin pigment amount in the diets, the
higher growth performance and survival rate in postlarvae as in postlarvae fed with 200mg
astaxanthin/kg, final weight (700.6±12.7mg) and survival rate (82±1.5%) was significantly
higher than control group (484.2±28.9, 54.7±4.5% final weight and survival rate,
respectively). Due to nutritional properties of astaxanthin pigment and the positive effect on
growth and survival, the feeding of postlarval white leg shrimp with the diet containing at
least 100mg astaxanthin/kg is recommended.
*Corresponding author
https://isfj.areeo.ac.ir/article_110041_160a40ce432a23959646b55bcfe3dfe6.pdf
2012-06-21
89
100
10.22092/isfj.2017.110041
carotenoid
Pigment
Nutrition
Aquaculture
B.
Rajabi
bijan.rajabi@yahoo.com
1
LEAD_AUTHOR
A.R.
Salarzadeh
reza1375bandar@yahoo.com
2
AUTHOR
M.
Yahyavi
maziar_yahyavi@yahoo.com
3
AUTHOR
S.
Masandani
4
AUTHOR
M.
Niromand
5
AUTHOR
ORIGINAL_ARTICLE
Comparison study of the proximate composition and amino acid profile in the bones of Goldstripe sardine (Sardinella gibossa), Anchovy kilka (Clupeonella engrauliformis) and Indian anchovy(Stolephorus indicus)
The aim of this study was to determine proximate composition and the profile of amino
acids in the bones of three pelagic fish including: Gold stripe sardine (sardinella gibossa),
anchovy kilka (Clupeonella engrauliformis) and Indian anchovy (Stolephorus indicus).
Proximate composition of the bones showed maximum moisture and protein in the Indian
anchovy. Maximum content of lipid and ash and highest ratio of ash/protein in the dry matter
whiteout lipid was found in anchovy kilka. The amino acid composition of the bones was
determined on a dry weight basis. The total essential amino acids showed no significant
difference between anchovy kilka and gold stripe sardine but showed different levels of
essential amino acids to that of Indian anchovy. Total non essential amino acids in anchovy
kilka and Indian anchovy were not significance but gold stripe sardine had the minimum
content. Highest amount of total sulfur amino acids was found in the anchovy kilka. The
amino acid score showed that three species have good essential amino acid for the growth of
the human recommended by FAO/WHO. The predicted protein efficiency ratio shows that the
quality of protein was high. Chemical composition of three species had a good nutritional
value but some parameters were lower than the human needs. The best chemical composition
observed in the gold stripe sardine. It is seems that bones powder of these kind of fish may be
used as ingredient in the food industries.
*Corresponding author
https://isfj.areeo.ac.ir/article_110042_1bea8f08069e6ffdd017d4d1091cd556.pdf
2012-06-21
101
112
10.22092/isfj.2017.110042
Organic components
Nutrition
Food supplement
Chemical score
ندا
سرحدی
sarhadi_nd@yahoo.com
1
LEAD_AUTHOR
علی
معتمدزادگان
2
AUTHOR
علی
طاهری
3
AUTHOR
منصور
آزاد
4
AUTHOR
ORIGINAL_ARTICLE
THE EFFECTS OF PREBIOTIC OLIGOFRUCTOSE ON SOME GROWTH FACTORS, SURVIVAL, BODY COMPOSITION AND RESISTANCE TO SALINITY STRESS OF CASPIAN ROACH (RUTILUS RUTILUS) FRY
This study investigates the effects of prebiotic oligofructose on some growth factors, survival, body composition and resistance to salinity stress of Caspian Roach (Rutilus rutilus) fry. Fries with average (±SD) weight of O.06±O.03g supplied form Sijowal Center, Golestan Province and were randomly allocated in 12 tanks and after acclimation, triplicate groups were fed with diets supplemented with 0 (control), 1, 2 and 3% prebiotic oligofructose. At the end of the trial growth factors (final weight, weight gain, SGR, CF) as well as survival rate, body composition (crude protein, lipid, ash and moisture) and resistance to salinity stress were measured. Our results showed that roach fries fed with prebiotics supplemented diet had better growth condition include final weight, specific growth rate, condition factor compare to control treatment. Caspian roach fed with 2% oligofructose had significantly higher final weight, SGR, CF compare to control and 1% oligofructose treatments. Weight gain showed no significant difference between prebiotic supplemented treatment. The study of body composition showed no significant difference between treatments groups. Roach fries fed with prebiotic supplemented diet had significantly higher resistance to salinity stress and highest survival observed in 3% oligofructose treatment.
https://isfj.areeo.ac.ir/article_110043_bc4743919add4d908ead453f1c3a926e.pdf
2012-06-21
113
121
10.22092/isfj.2017.110043
Nutrition
Aquaculture
Growth
Prebiotic
OLIGOFRUCTOSE
Salinity stress
CASPIAN ROACH
N.
Soleimani
soleimani_n@yahoo.com
1
LEAD_AUTHOR
سید حسین
حسینی فر
hoseinifar@ut.ac.it
2
AUTHOR
محسن
براتی
3
AUTHOR
زهره
حسن آبادی
4
AUTHOR
ORIGINAL_ARTICLE
CULTURE OF CYCLOPOID COPEPOD METACYCLOPS GRACILIS FED ON SCENEDESMUS QUADRICAUDA AT DIFFERENT OXYGEN CONCENTRATIONS
One of the essential factors in zooplankton culture is dissolved oxygen (DO), especially copepods. This is because of DO effects on their growth and reproductive parameters. Effects of different DO concentrations on growth and production of cyclopoid copepod Metacyclops gracilis fed on green algae Scenedesmus quadricauda were investigated in laboratory conditions. Experiment treatments were 2, 3, 4, and 6mg/l of DO. Results showed that mean total production (nauplii+copepodids+adults) of M. gracilis were 3666.7, 3133.3, 3600.0 and 3733.3ind./1 at 2, 3, 4, and 6mg/1 DO, respectively. While total nauplii production was 1533.3, 2000.0, 2466.7 and 2800.0ind./l, and copepodids were 1266.7, 666.7, 600.0, and 600.0ind./l, respectively. The specific growth rates (SGR) of M. gracilis were 0.088, 0.082, 0.061 and 0.081/day at 2, 3, 4, and 6mg/1 DO, respectively. This study showed that M. gracilis can grow and produce at different concentrations of DO, but at 4 and 6mg/1 DO nauplii stage and at 2 and 3mg/1 DO adults stage significantly increased in population. This species could be used as live food for fish larval rearing in aquaculture industry.
https://isfj.areeo.ac.ir/article_110044_9d57a169561881d6ba1bc37f6a7a1d0e.pdf
2012-06-21
123
132
10.22092/isfj.2017.110044
Aquaculture
zooplankton
COPEPOD
LIVE FOOD
امیدوار
فرهادیان
farhadyo@yahoo.com
1
LEAD_AUTHOR
ORIGINAL_ARTICLE
The role of dietary nucleotide on energy sources and growth function of common carp, Cyprinus carpio
Considering the effects of dietary nucleotides on growth and metabolism, this study was
conducted to determine the effect of different levels of this nutrient on the sources of the body
needed energy, and growth performance of common carp. Fish with average (±SD) weight of
7.5±0.2g were fed to five levels of dietary nucleotides containing 0, 0.1, 0.2, 0.3 and 0.4
percent for 8 weeks. Fish were fed 5 times daily according the satiation. After 56 days, the
results showed that the level 0.2% nucleotide had the highest growth rate in terms of weight
and length, but other parameters such as body weight, specific growth rate and feed
conversion ratio, differences were not significantly changed. Biochemical analysis of serum
parameters and proximate analysis showed that the physiological function of fish affected by
different levels of nucleotides whereas in the energy supply sources, including glucose,
triacyleglycerol, total protein and albumin there were no significant difference in cholesterol
and lipid content of carcass. This study conveys a positive effect on the biosynthesis of
dietary nucleotides on energy sources and growth functions, while the common carp has
ability to synthesize this substance into the body, the level of 0.2% in the diet can affection
*Corresponding author
sufficient effect on growth and some biochemical indices.
https://isfj.areeo.ac.ir/article_110045_28e97348ecf85bb5f35413fd2af7234f.pdf
2012-06-21
133
146
10.22092/isfj.2017.110045
Nutrition
Glucose
fat
Growth
common carp
B.
Falahatkar
falahatkar@guilan.ac.ir
1
LEAD_AUTHOR
H.
Abdi
2
AUTHOR
N.
Mahmoudi
3
AUTHOR
ORIGINAL_ARTICLE
Quantitative analysis of heavy metals in muscle, liver and gill tissues of Euryglossa orientalis in northern Persian Gulf waters
In this research, concentrations of heavy metals (i.e., cadmium, lead, copper) in muscle,
liver and gill tissues of Euryglossa orientalis (Family: Soleidae) in two fishing areas, from
northern Persian Gulf that names Hendijan port (Bahrekan) in Khuzestan province and
Deylam port in Bushehr province were measured and compared. Fifty fish samples randomly
were collected from Hendijan and Deylam ports each from 3 stations, in summer 2008. Tissue
samples were digested using MOOPAM method and metal concentrations (Cd, Pb, Cu) were
measured using atomic absorption spectrophotometer (AAS). Cadmium, lead and copper
concentrations were varied significantly among gills, liver and muscle tissues of fish samples
in any area from Hendijan and Deylam. In Hendijan area higher mean (±SD) concentrations
of cadmium and copper were observed in the liver (2.11±0.22 and 366.41±15.63μg/g,
respectively. Lower concentrations in the muscle (0.70±0.07 and 5.08±0.27μg/g respectively.
In Deylam area higher mean (±SD) concentrations of cadmium and copper were observed in
the liver (1.47±0.10 and 240.24±10.50μg/g, respectively lower concentrations in the muscle
(0.49±0.07 and 3.08±0.52μg/g), respectively. In Hendijan area higher concentration with
mean (±SD) of lead was observed in the gill (10.72±1.71μg/g with lower concentration was
noted in the muscle (5.20±0.05μg/g) of fish. In Deylam area higher mean (±SD) concentration
of lead was observed in the gill (6.91±0.52μg/g) with lower concentration in the muscle
(4.09±0.52μg/g). In general, our study showed that concentration of heavy metals in different
tissues of fish in Hendijan area was significantly higher than Deylam area. Also, cadmium
and lead concentrations in muscle tissue of Euryglossa orientalis in both sampling area were
higher than the acceptable limits reported by WHO, FAO, ITS and others.
*Corresponding author
https://isfj.areeo.ac.ir/article_110046_0a4a0e2d4d84da2b4548b09b481b2dab.pdf
2012-06-21
147
160
10.22092/isfj.2017.110046
Pollution
Bentic fishes
Khuzestan coasts
Bushehr coasts
the Persian Gulf
A.
Sadough Niri
ali_sadough@yahoo.com
1
LEAD_AUTHOR
M.T.
Ronagh
2
AUTHOR
R.
Ahmadi
3
AUTHOR
ORIGINAL_ARTICLE
Assessment of efficiency between fyke net with fixed gill net in Anzali Wetland
Fixed gill net has been used for Teleostei fishery by the fishermen in Anzali Wetland. The
aim of this study was to compare the CPUE, species composition, length frequency and the
vulnerability of Teleostei between fixed gill net and fyke net from 1st November 2010 to 30st
March 2011 in Anzali Wetland. Ten fixed gill nets and ten fyke nets were set. Mean CPUE
(±SE) was estimated 0.17±0.03 and 0.26±0.07Kg/24h for fixed gill net and fyke net,
respectively. Mean CPUE differed significantly between two gears. Also mean CPUE (±SE)
differed significantly between fixed gill net and fyke net for 100m2 with higher CPUE
(2.14±0.54Kg/24h) in fyke net. The relative frequency of caught species in fixed gill net and
fyke net were dominated by Carassius auratus (38%) followed by Esox lucius (65%),
respectively. Length-frequency distributions of the species had greater range of length and
weight in fyke net in relative to fixed gill net. The amount of damage differed significantly
between fixed gill net and fyke net with less damage and with higher survival in fyke net. The
results of this study showed that fyke net has valuable and marketability catch in relative to
gill net that resulted to higher income for fishermen. Also these results demonstrated that fyke
net had less pressure on environment of Anzali Wetland.
*Corresponding author
https://isfj.areeo.ac.ir/article_110047_2670c77e14fa324c5b481a18ee88cd39.pdf
2012-06-21
161
170
10.22092/isfj.2017.110047
CPUE
species composition
Length frequency
FISHERY
Anzali Wetland
Gh.
Moradinassab
moradinasab88@yahoo.com
1
LEAD_AUTHOR
R.
Ghorbani
2
AUTHOR
S.R.
Paighambari
sypaighambari@yahoo.com
3
AUTHOR
A.A.
Khanipour
aakhanipour@yahoo.com
4
AUTHOR
ORIGINAL_ARTICLE
Identification of Cypraeidae in southern intertidal zones of Qeshm Island, the Persian Gulf
Gastropod communities were investigated along two intertidal sandy and rocky shores in Qeshm
Island, the northern Persian Gulf, IR Iran to identify the species of the family Cypraeidae. Monthly
sampling was undertaken from May 2007 to April 2008 by haphazardly placing eighteen 0.25 m2
quadrates along two 30m wide transects located approximately 300m apart, perpendicular to the sea,
in each sandy and rocky shore. Four species and subspecies belonging to the family Cypraeidae
were identified including Cypraea feline fabula, Cypraea grayana, Cypraea nebrites and Cypraea
turdus winckworthi. All species occured on rocky shores. Identifications were verified by Dr.
Robert G. Moolenbeek, from Natural History Museum of Amsterdam, The Netherlands.
https://isfj.areeo.ac.ir/article_110048_a930e41aa43e385d81f3efbacdbc39e8.pdf
2012-06-21
171
174
10.22092/isfj.2017.110048
Molluscs
Cypraea
Biodiversity
Qeshm Island
Persian Gulf
F.
Amini Yekta
fateme.yekta@gmail.com
1
LEAD_AUTHOR
A.
Ashja Ardalan
a_ashjaardalan@yahoo.com
2
AUTHOR
M.R.
Shokri
shokri.m@gmail.com
3
AUTHOR
ORIGINAL_ARTICLE
Seasonal changes of fatty acids in Nerita textiles on intertidal area of Chabahar Bay (Oman Sea)
The aim of this research was to identify and isolate the fatty acids composition of Nerita
textiles in intertidal area of Chabahar Bay, and also to explore the seasonal changes of fatty
acid content in Nerita textiles. GC/MS resulted thirteen fatty acids, that saturated fatty acids
(SFA) of palmitic acid (16:0) was the most abundant category of fatty acid obtained in total
lipids. There were no significant differences in total saturated fatty acids between different
seasons. No significant differences were also observed in total unsaturated fatty acids between
different seasons. The majority of unsaturated fatty acid reached their maximum levels during
winter, while saturated acids reached their maximum levels in summer. Saturated acids were
more than unsaturated fatty acids. Statistical analysis showed the positive significant
correlation between temperature and saturated fatty acids and a negative significant
correlation between temperature and unsaturated fatty acids. Biomarker fatty acids revealed
that diet of Nerita textiles probably includes phytoplankton, zooplankton, detritus, bacteria,
diatoms, red and brown algae. The results showed that meat quality indicated n-6/n-3 ratio in
the range of 1.9 to 4.3.
*Corresponding author
https://isfj.areeo.ac.ir/article_110049_44ed104b6fd31efb883ea8b0394a9b1b.pdf
2012-06-21
175
180
10.22092/isfj.2017.110049
Nerita textiles
fatty acids
Gulf of Chabahar
Oman Sea
N.
Sajjadi
noshinsadgadi@yahoo.com
1
LEAD_AUTHOR
P.
Eghtesadi
2
AUTHOR
K.
Darvish Bastami
3
AUTHOR