ORIGINAL_ARTICLE
Macroinvertebrate study of Caspian Sea river estuaries in Guilan province
Macrobenthos were performed the main group of the Caspian Sea funa while they have not completely
attentived espacilly in estuaries environoments. In this survey were studied eghiteen river estuaries in Guilan
province off Caspian Sea southwest. The macroinvertebrate sampling was conducted seasonally at egith
station during winter 2009 to summer 2009. The macrobenthos organisms were sorted and identified as
possible level in genus or species. The results presented fifteen orders including thirty six families. The most
presentation of genus belongs to Chironomidae family with twenty six genus while others were included
forthy three genus. The Stenogammarus genus had the normally distribution between seasons while the
most abundance was linked to Eukifferiella and Cricotopus during winter and spring 2009 nearly same as
Streblospio and Limnodrilus. The Cerastoderma was showed a high percentage with decresing of others
especially during summer 2009. In this paper have been described the fluctuation of benthic aboundance
according to biological characteristic and the environoment degradation.
https://isfj.areeo.ac.ir/article_110189_7b754fdb389341ecaab2f698ea5b0c77.pdf
2015-09-23
1
11
10.22092/isfj.2017.110189
Caspian Sea
river estuary
Macrobenthos
identification and abundance
A.
Mirzajni
ar_mirzajani@yahoo.com
1
LEAD_AUTHOR
E.
Yosefzad
2
AUTHOR
M.
Sayad Rahim
3
AUTHOR
Y.
Zahmatkesh
4
AUTHOR
S.Gh.
Gorbanzadeh Zaferani
5
AUTHOR
O.
Sedigi Savadkohi
6
AUTHOR
ORIGINAL_ARTICLE
Effect of herbal supplement of sangrovit on growth, blood biochemical parameters, survival and resistance to salinity stress of Cyprinus carpio fingerlings
Nowadays, herbal products as a new class of growth promoters that provide an alternative feeding strategy to
replace antibiotic growth promoters in aquaculture. This study was conducted to investigate the effects of
different levels of sangrovit (0, 0.05, 0.1 and 0.15 %) on growth, some of blood biochemical parameters,
survival and salinity tolerance capacity in Cyprinus carpio (2.62±0.117 gr). After 45 days of feeding, results
showed that growth performance including of weight gain and % specific growth rate improved which fish
fed whit sangrovit compared with to control group, but there was no significant differences in growth
parameters which fish fed with herbal supplement compared to control group (P>0.05). There were
significant differences in biochemical parameters in fish fed with sangrovit compared to the control group
(P<0.05). The lowest level of cholesterol was observed in 0.05 % group and the highest level of total protein
was observed in 0.15 % group. The highest levels of glucose observed in control treatment. In order to
determine the effect of the herbal supplement on resistance to salinity stress, salinity stress was carried out
after 45 days of feeding. Blood samples were obtained at 24, 72, 120 and 168 hours after stress. Hematocrit
had significant difference in each groups (P<0.05). On the third day after stress, hematocrit levels were
decreased in all treatments. Survival and tolerance to salinity stress challenge remained unaffected by dietary
supplementation of sangrovit. The results of this study showed that addition of sangrovit to fish diet can
improve growth performance and blood biochemical parameters of common carp fingerlings.
https://isfj.areeo.ac.ir/article_110190_fc1f149889e33af41c2b5a965f8592a9.pdf
2015-09-23
13
22
10.22092/isfj.2017.110190
Growth performance
Blood
Sang rovit
Stress
common carp
M.R.
Imanpoor
1
AUTHOR
Z.
Salaghi
2
AUTHOR
Z.
Roohi
roohi26_iut@yahoo.com
3
LEAD_AUTHOR
A.
Beikzadeh
4
AUTHOR
A.
Davoodipoor
5
AUTHOR
ORIGINAL_ARTICLE
The effect of density and stocking weight on growth rate and production of grey mullet (Mugil cephalus L.).
Around ten thousands fries of Striped grey mullet (Mugil cephalus) with average weight and length of 280
mg and 28.3 mm respectively, imported in March 2008 from Egypt. The wild fries collected from
surrounding natural waters of Alexandria.They stocked in four earthen ponds (each with 2500 m2) located at
the Gomishan shrimp educational centre at late march in 2008. At the first year of culture the densities were
5000 and 10000 individuals per hectare and each treatment with two replicates. At second year, densities
changed with 2000 and 2500 individuals per hectares and each of the treatments divided fishes with average
primary weights of 80 and 115 grams.They fed twice a day at 8 AM and 2 PM and the amount was 5-7
percents of the fish existent biomass in each ponds.After seven months culture period, the average weight
and length of fish in treatment 5000 ind./hec. were 113.7 gr and 21.1 cm respectively and in treatment 10000
ind./hec. the average weight and length were 86.6 gr and 19.6 cm respectively. At first year the average
survival rate in different treatments was 77 percent. The average FCR in treatments 5000 and 10000 ind./hec.
were 3.4 and 3.9 respectively.At second years after six months culture the average weights in pond no. 9
(with primary weight 115 gr and density 2000 ind./hec) , pond no. 10 (with primary weight 80 gr and density
2000 ind./hec) , pond no. 11 (with primary weight 115 gr and density 2500 ind./hec) and pond no. 12 (with
primary weight 80 gr and density 2500 ind./hec) calculated as 476.6 ,338.1, 366.5 and 440 gr respectively.
The average survival rate and FCR were 93 % and 3.1 respectively.
https://isfj.areeo.ac.ir/article_110191_d6e4d8b3821e149bc4a3c2d521389053.pdf
2015-09-23
23
33
10.22092/isfj.2017.110191
Grey mullet
cultivation
Density
stocking weight
S.A.
Mirhashemi Rostami
rostamy_a@yahoo.com
1
LEAD_AUTHOR
K.
Amini
2
AUTHOR
M.
Jorjani
3
AUTHOR
ORIGINAL_ARTICLE
Extraction and Identification Sterols in Brown alga, Padina boergesenii in Chabahar Coasts
Padina boergesenii is one of the most abundant brown algae distributed in the north of Persian Gulf and
Oman Sea. In this study after sampling and preparation of Padina boergesenii by Chroform-Etanol (3-1)
solvent and by Methanol has been extract. Separation and purification of the compounds was carried
out using thin layer, general and inverse column chromatography, Cephadex and high-performance
liquid chromatography (HPLC). Structural elucidation of the constituents was based on the data obtained
from H-NMR, 13C-NMR, HSQC, HMBC, DEPT and Cephadex LH-20. The steroids compounds
separated from above alga were identified as 22-dehydrocholesterol (1), cholesterol (2), fucosterol (3), β-
sitosterol (4), stigmasterol (5), ostreasterol (6) and two epimer of hyroxyestrol(7), based on their spectral
data and from comparison with those previously reported in the literature.
https://isfj.areeo.ac.ir/article_110192_b4d910af430d1b64803a62c908d6c492.pdf
2015-09-23
35
44
10.22092/isfj.2017.110192
brown algae
Padina boergesenii
Steroids compounds
Oman Sea
Sh.
Jamili
shahlajamili45@yahoo.com
1
LEAD_AUTHOR
A.R.
Gohari Kakhki
2
AUTHOR
S.
Saeidnia
3
AUTHOR
P.
Permeh
parisanparisa@yahoo.com
4
AUTHOR
ORIGINAL_ARTICLE
Effects of vita min E deficiency on dietary vitamin C requirement in Siberain Sturgeon (Acipenser Baerii)
A 2×5 factorial design was used to evaluate the effects of different dietary vitamin C and
vitamin E levels on growth, feed utilization, haemato-biochemical status and immune response
in Siberain sturgeon, Acipenser baerii. Ten diets were formulated to contain two dietary vitamin
E levels of 0 and 200 mg dl-tocopheryl acetate (TA) and 5 dietary L-ascorbic acid (AA) in the
form of L-ascorbyl-2-monophosphate (AMP( levels of 0, 100, 200, 400, and 800 mg/kg. Thus,
the diets with 0 mg/kg vitamin E were designated as E0 C0, E0 C100 , E0 C200, E0 C400, E0 C800
while the diet with 200 mg/kg vitamin E were designated as E200 C0, E200 C100, E200 C200, E200
C400, E200 C800. 300 fish with an average weight of 29.8±1.6 g (mean ± SD) were fed each of the
10 experimental diets in triplicate groups for 12 weeks. At the end of experimental period,
weight gain (WG) in fish fed E0C400 and E0C800 diets were significantly higher than those fed
E0C0 and E0C100 (P<0.05). Growth performance, feed utilization, haemato-biochemical status
and immune response significantly improved with an increase in dietary vitamin E level.
However, there were no significant differences in those parameters among fish fed E200C100,
E200C200, E200C400 and E200C800 diets (P>0.05). The results showed sparing effect of dietary
vitamin E on vitamin C. Meanwhile, there was no significant difference in survival of fish fed
diets supplemented with vitamin C. Deficiency symptoms such as retarded growth and anorexia
were observed in fish fed vitamin C of 0 mg/kg at either of the dietary vitamin E levels. These
results showed that dietary vitamin C requirement is 200 mg AA/kg diet when juvenile Siberain
sturgeon, Acipenser Baerii fed a vitamin E deficiency diet while vitamin C requirement is 100
mg AA/kg diet when fish fed a diet supplemented with 200 mg/kg vitamin E.
https://isfj.areeo.ac.ir/article_110193_1e0d38b54b45db4e8167586be7ebb371.pdf
2015-09-23
45
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10.22092/isfj.2017.110193
M.
Mohseni
mahmoudmohseni@yahoo.com
1
LEAD_AUTHOR
ORIGINAL_ARTICLE
Study of fish meal substitution with earthworm in diet of rainbow trout (Oncorhynchus mykiss)
This experiment was carried out to evaluate the effect of earthworm (Eisenia fetida) in diet for
rainbow trout in a complete randomized design with 5 treatments in triplicates using 15 cages in a
pound for 8 weeks. Ten fish with average weight 120 g was stocked in each replication.The
earthworm (as fed) at the levels of 0, 25, 50, 75 and 100% was replaced with fish meal in rainbow
trout diet. Results showed that feed intake decreased significantly (P < 0.05) as earthworm
increased. The diets contain 25% and 50% earthworm showed no significane differences compared
to control for weight gain, specific growth rate and feed conversion ratio (P > b0.05). The chemical
composition analysis of fish meat showed that there were no significant effects between control and
25% and 50% earthworm in diet for dry matter, crude protein and ash, but fat content significantly
decreaed as earthworm increased (P < 0.05). This present study showed that the earthworm (Eisenia
fetida) can be used in rainbow trout diet up to 50% instead of fish meal.
https://isfj.areeo.ac.ir/article_110194_a89b0bff134d0607abab41a599db8093.pdf
2015-09-23
59
67
10.22092/isfj.2017.110194
earthworm
Fish meal
Rainbow trout
Growth
body chemichal composition
S.K.
Allameh
allameh40@gmail.com
1
LEAD_AUTHOR
A.
Azarbayejani
2
AUTHOR
M.
Mohammadi
3
AUTHOR
A.
Akhundi
4
AUTHOR
ORIGINAL_ARTICLE
Temporal and spatial variations in percentage cover of macroalgae on rocky shores in South of Caspian Sea (Astara to Babolsar)
The most important primary producers of rocky shores are macroalgae. The present study investigated the
temporal–spatial changes, the percentage of coverage and the influence of abiotic factors on macroalgae
on rocky shores of southern Caspian Sea. Ten sampling stations were selected in the natural and artificial
rocky shores from Astara to Babolsar. Sampling lasted for one year and took place every 2 months from
September 2013 to July 2014 using a 50×50 quadrate sampler. Epibenthic macroalgae consisted of 2
genus, Cladophora and Entromorpha, from green algae and one genus, Laurenica, from red algae. The
average water temperature, salinity, pH, dissolved oxygen and water conductivity were 16.48 °C,
9.87ppt, 8.27, 9.89 mg/l and 16.52 m/s, respectively. According to the results, the maximum algal
coverage was observed in September (70.50 %) and the minimum coverage was observed in January
(21.50 %). Results of one-way ANOVA indicated that the mean of algal coverage in various months of the
year were significantly different (P<0.05). One-way ANOSIM ecosystem similarity test indicated that the
coverage rates of the stations were homologous and similar. The results also showed that temperature has
a significant effect on macroalgae coverage ratio on rocky shores in the southern Caspian Sea.
https://isfj.areeo.ac.ir/article_110195_3a4fdc95d80b32111f31cc1925498f7b.pdf
2015-09-23
69
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10.22092/isfj.2017.110195
Caspian Sea
ROCKY SHORES
macro algae
A.
Azarbayejani
an7@gmail.com
1
LEAD_AUTHOR
S.K.
Allameh
2
AUTHOR
A.
Sepahdari
asepahdari@yahoo.com
3
AUTHOR
ORIGINAL_ARTICLE
Comparative s tudy on some physiologic, biometrics, Nutritional value and molecular characteristics of Mighan Lakeâs Artemia (Arak)
Due to the importance of identifying the major characteristics of Artemia populations, in this study some
physiologic, biometric, nutritional and genetic characteristics of one Artemia population from Iran named
Arak’s Artemia (Mighan Lake) was studied. The hatched larvae of Artemia were reared in the saline water of
80 g/l with standards method in which percentage of survival and growth were evaluated on days 3, 7, 11 and
15 of culture period. In order to study the morphometric characteristics of Artemia, diameter of full cysts as
well as 11 more morphological parameters of adult Artemia were measured. The fatty acids profile were
analyzed by gas chromatography. The Genetic characteristics were compared with other Artemia populations
by sequencing after PCR amplification of Hsp 26 gene. According to the results, the diameter of cysts and
nauplii instar were 276.28 and 544.66 micron, respectively. The growth and survival of brine shrimp
Artemia, in comparison with other populations, reflected good growth and survival of this population. The
results of fatty acids profile also showed higher amounts of polyunsaturated fatty acids in this Artemia
compared to other populations cultured under identical conditions. The morphometric characteristics and
genetic study of Hsp 26 gene showed great affinity of this population with the parthenogenetic brine shrimp
Artemia. However, individual differences could be used to characterize this population.
https://isfj.areeo.ac.ir/article_110196_199605c8195a44354b147198e850198b.pdf
2015-09-23
93
105
10.22092/isfj.2017.110196
Artemia
Morphometry
survival
Mighan Lake
Artemia Phylogeny
r.
Manaffar
1
AUTHOR
M.
Taghavi
2
AUTHOR
F.
Farah Farokhi
3
AUTHOR
G.
Moosavi Toomatari
gmoosavit@gmail.com
4
LEAD_AUTHOR
ORIGINAL_ARTICLE
Effective Factors on Adoption Technology among Trout Fish Farms in Guilan Province
The main purpose of this study was to investigate effective factors on adopting technologies among trout fish
farmers in Guilan province by Unified Theory of Acceptance and Use of Technology (UTAUT). Statistical
population of this research contained of all managers of trout fish farms of Guilan province (N=170) that
base on limitation of structural equation modeling in determining sample size, 97 of them were chosen as a
sample. Study tool was contained Vankatesh and et al. information technology questionnaire in six items. To
obtain validity of questionnaire; content, face, convergent and discriminant validity were used. As well, to
obtain reliability of questionnaire; principal component analysis, Cronbachs alpha, Dillon-Goldstein’s Ê and
reagent stability were used. To accomplish analysis of data, SPSSV19 and SmartPLSV2 software were used in
descriptive and inferential statistics. For testing hypothesis, structural equation model (SEM) and partial least
squares (PLS) that focus on reagent variance were used. The results showed that there was significant
relationship between performance expectancy and behavioral intention. Also there was significant
relationship between intention to use and use behavior of aquaculture technologies. Model explains 28.8
percent of behavioral intention variance and 7.9 percent of use behavior of aquaculture technologies variance
among trout fish farmers. To increase willingness to accept the technology among trout fish farms in Guilan
province, it is suggested that extension-education courses for raising knowledge and awareness of
aquaculture technology to be held by organizations. Providing financial resources and adequate knowledge
will enable trout fish farms to equip with the aquaculture technologies.
https://isfj.areeo.ac.ir/article_110197_e98023039c0608eee4ca829431825f39.pdf
2015-09-23
107
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10.22092/isfj.2017.110197
technology
Technology Acceptance
UTAUT Model
N.
Nejadrezaei
1
AUTHOR
H.
Khara
hosein.khara@gmail.com
2
AUTHOR
M.S.
Allahyari
allahyari@iaurasht.ac.ir
3
LEAD_AUTHOR
M.
Sadeghzadeh
4
AUTHOR
K.
Gharra
5
AUTHOR
ORIGINAL_ARTICLE
Entrepreneurship development; a step towards achieving the economic and social goals of fisheries: (Explanation and ranking of effective environmental factors using fuzzy Delphi and FAHP approach)
The purpose of the present research was to identify and rank the effective environmental (background)
indices on OE process in Mazandaran Fisheries Organization. In terms of data collection, the method used in
this study was the descriptive-survey method and in terms of research purposes, it was an applied research.
Statistical population included experts and leading experts of Mazandaran fisheries organization in 2014.
After literature review, the effective environmental (background) indices on OE were identified. Data were
collected using Delphi and paired comparisons questionnaires, and analyzed using fuzzy Delphi method and
FAHP. The results showed that the effective environmental (background) indices on OE, in order of priority,
were the economic environments, legal-political environment, social-cultural environment, technological
environment, administrative environment and international environment.
https://isfj.areeo.ac.ir/article_110198_291964dcdc2cf2304d862f28b0f1ff87.pdf
2015-09-23
125
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10.22092/isfj.2017.110198
Organizational entrepreneurship
Eenvironmental factor
Mazandaran Fisheries Organization
Fuzzy Delphi
Fuzzy AHP
H.
Samadi Miarkolaei
hossein_samadi_m@yahoo.com
1
LEAD_AUTHOR
H.E.
Samadi Miarkolaei
2
AUTHOR
M.
Masha Zamini
3
AUTHOR
ORIGINAL_ARTICLE
بررسی تغییرات زمانی- مکانی درصد پوشش ماکروجلبکها در سواحل سنگی حوضه جنوبی دریای خزر (آستارا تا بابلسر)
مهمترین تولیدکنندگان اولیه سواحل صخرهای ماکروجلبکها هستند. تحقیق حاضر به بررسی تغییرات زمان- مکانی، تعیین درصد پوشش و تاثیر عوامل غیرزیستی بر ماکروجلبکها در سواحل سنگی حوضه جنوبی دریای خزر پرداخته است. 10 ایستگاه نمونهبرداری درسواحل سنگی طبیعی و مصنوعی از آستارا تا بابلسر انتخاب و درطول یکسال هر 2 ماه یکبار از شهریور 92 تا تیر 93 توسط کوادراتcm 50×cm 50 به صورت تصادفی مورد نمونهبرداری قرار گرفتند. ماکروجلبکهای اپیبنتیک شامل دو جنس Cladophoraو Entromorphaازگروه جلبکهای سبز و یک جنس به نام Laurencia از جلبکهای قرمز میباشند. میانگین (± انحراف معیار) دمای آب 91/4±48/16 درجه سانتیگراد، شوری23/3±83/9 قسمت در هزار، pH 19/0±27/8، اکسیژن محلول 18/10±89/9 میلیگرم بر لیتر و قابلیت رسانای آب 33/0±52/16 درثانیه انداز گیری شد. طبق نتایج حاصله بیشترین پوشش جلبکی مربوط به ماه شهریور (50/70 درصد) وکمترین مربوط به دیماه (50/21 درصد) می باشد و نتایج آزمون One-way ANOVA نشان داد که میانگین پوشش جلبکی در ماههای مختلف سال دارای اختلاف معنی داری است (05/0p
https://isfj.areeo.ac.ir/article_110199_abd76544cfd6914a1b0d398311ece206.pdf
2015-09-23
139
150
10.22092/isfj.2017.110199
حر
ترابی جفرودی
1
AUTHOR
حسن
تقوی
taghavi25@yahoo.com
2
LEAD_AUTHOR
محمد رضا
رحیمی بشر
3
AUTHOR
مجید
راستا
4
AUTHOR
ORIGINAL_ARTICLE
The Distribution and Diversity of Dinoflagellate Cysts in Sediments of Gwatar Bay (Northeast Gulf of Oman)
Most dinoflagellate produce resting cysts during their sexual lifecycle as well as under unfavorable
environmental conditions and from water column settle in the sediments substratum. The evaluation of
diversity and distribution of dinoflagellate cysts is very important in environmental studies, because cysts act
as seed in sea bed that can cause red tide with excystment. This study was performed to determine the
diversity and distribution of dinoflagellate cysts in the sediments of Gwatar Bay in 2013 by sediments
sampling from five stations. Sediment sampling was made by Ekman grab with covering area of 0.225
square meters with three replicates at each station in two seasons before and after the monsoon. In total of
sampling 16 samples in species level belonging to 9 genera of dinoflagellate cysts were identified. The
highest and lowest abundances are related to the genus Protoperidinium (52%) and the genus
Zygabikodinium (1%), respectively. The results showed the average dinoflagellate cysts diversity from 2.22
before monsoon have decreased to 2.06 after monsoon.
https://isfj.areeo.ac.ir/article_110200_b749826afce78d2082e66c26e8a214fb.pdf
2015-09-23
151
163
10.22092/isfj.2017.110200
diversity
distribution
Dinoflagellate Cysts
Monsoon
Gwatar Bay
G.
Attaran-Fariman
gilan.attaran@gmail.com
1
LEAD_AUTHOR
A.
Raisi
2
AUTHOR
ORIGINAL_ARTICLE
Affective Factors on Fish Consumption Pattern in Households (Case study: Sari)
Aquatics, especially fish, are important sources of animal protein that plays an important role in household
food basket and could account as a good substitute for food and protein needs. The purpose of this study was
to determine factors of social, economic and cultural influence on fish consumption and current fish-use
pattern in Sari, using a discriminant analysis model. The results of discriminant analysis showed that the
region of residence, fish health awareness, the assessment of poultry meat benefits, the assessment of fish
meat benefits, consumption awareness, the normative pressure of consumption and meal planning criteria
had the biggest impacts on fish consumption in the city of Sari. Actions, such as informing the society about
the nutritional values of marine products, eliminating misconceptions and creating a habit of household
eating fish as well as promoting fish as part of household food culture can be effective steps to increase fish
consumption.
https://isfj.areeo.ac.ir/article_110201_eeb18d876d404eb61689bfeaf257bb6b.pdf
2015-09-23
165
177
10.22092/isfj.2017.110201
H.
Amirnejad
1
AUTHOR
R.
Heidari Kamalabadi
rezaheidari3631@gmail.com
2
LEAD_AUTHOR
ORIGINAL_ARTICLE
The Effect of Dietary Nucleotide on the Haematological and Serum Biochemical Parameters of Persian Sturgeon (Acipenser persicus) Juveniles
This study was aimed to examine the impact of different levels of dietary nucleotides (Vannagen) on serum
biochemical and blood parameters of Persian sturgeon (Acipenser persicus). Fish (42.37± 2.12 g and 23.67±
0.61 cm) were divided into four treatments with different levels of dietary nucleotides (0, 0.25, 0.35 and 0.5
percent of diet). There were three replicates with a density of 12 fish per tank. After 10 weeks of feeding,
serum biochemical and blood parameters were measured. Among the measured factors, blood glucose,
triglycerides, cholesterol, erythrocyte and heterophil showed significant differences between the groups fed
with nucleotides and the control group (P ≤ 0.05). By increasing the nucleotide levels, the mean heterophil
and serum glucose showed significant increase and decrease, respectively. The highest and lowest values of
cholesterol and triglyceride were found in groups fed with 0.25% and 0.35% nucleotides, respectively. The
other measured factors had no significant difference (P≤0.05). Therefore, it could be said that with regard to
the limited capacity of cells to synthesize nucleotides, external preparing of nucleotides could result in the
production of needed nucleotides and an increase of its production speed, especially during stress. Such
preparation can also improve fish physiology and health status.
https://isfj.areeo.ac.ir/article_110202_3951c55188008e6074eb938348f92ebe.pdf
2015-09-23
179
189
10.22092/isfj.2017.110202
Nucleotides
Blood factors
serum biochemical parameters
Persian sturgeon
Acipenser persicus
F.
Khani
f.khani88@gmail.com
1
LEAD_AUTHOR
M.R.
Imanpoor
2
AUTHOR
H.
Kolangi Miandare
3
AUTHOR
A.
Ghaedi
4
AUTHOR
V.
Taghizadeh
5
AUTHOR
ORIGINAL_ARTICLE
Study on some blood immunological indices of the juvenile Persian sturgeon, Acipenser persicus caught from depths of 20 to 100 meters in the coasts of the Mazandaran province
In this study, a total of 60 juvenile Acipenser persicus (mean weight 410±267.6, mean length 39.6±19.6 cm and 1 - 2 year old) were captured by trawling method at depths of 20 to 100 meters in the Mazandran province via 7 times surveys during 2009 – 2012, and studied immunologically. Results showed that the mean of red blood cells (RBC) and white blood cells (WBC) were 585000 ± 151000 and 30300 ± 3200 per mm3 of blood, respectively. Mean percentage of lymphocyte, monocyte, neutrophile and eozynophile were 83.1 ± 12, 2.9 ± 2, 8.3 ± 6.6 and 5.6 ± 3.2 %, respectively. Mean concentration of Immunoglobin M (IgM) in blood serum was 25.6 ± 8.7 mg/dl. Samples showed no significant difference in length (P>0/05). These results showed that the fish by less than the length classes were more sensitive to environmental changes. For this reason, their immune indices improved. Therefore, any change in fish blood immunological factors can lead to the secondary response.
https://isfj.areeo.ac.ir/article_110203_86fb73ad7b276c7cc2b69d3b0f299fc7.pdf
2015-09-23
191
201
10.22092/isfj.2017.110203
Caspian Sea
Acipenser persicus
RBC
WBC
IGM
A.
Hallajian
alihallajian@gmail.com
1
LEAD_AUTHOR
M.
Bahmani
mahmoudbahmani@ymail.com
2
AUTHOR
R.
Kazemi
rezkazemi2000@yahoo.com
3
AUTHOR
S.
Dejhandian
4
AUTHOR
A.
Yousefi Jourdehi
5
AUTHOR
E.
Khazaie
6
AUTHOR
ORIGINAL_ARTICLE
Effects of different carbon sources on water quality, growth performance and survival of western white shrimp (Litopenaeus vannamei Boone, 1931) in zero-water exchange system
Eeffect of different dietary carbon sources on water quality, growth performance and survival ofwestern white shrimp Litopenaeus vannamei post larvae was investigated in zero-water exchangesystem. Shrimp postlarvae with mean weight of 98.47±8.60 mg and mean length of 22.39± 1.70mm were fed for 32 days in fiberglass containers with 130 liters volume of water and density of 1individual per liter in five treatments including one control with water exchange and four biofloctreatments with adding different carbon sources including molass, starch, wheat flour and mixtureof them at equal weight ratios with 15% to 9% of body weight. In the values of water qualityparameters including temperature, salinity, dissolved oxygen and pH, no significant differenceswere observed among the biofloc treatments (P>0.05). Maximum pH (8.27 ± 0.09) and maximumdissolved oxygen (6.37 ± 0.56 mg/lit) was in water exchange treatment. Maximum andminimum level of ammonia was 0.43± 0.34 and 0.09± 0.07 mg/lit in water exchange treatmentwithout floc and biofloc treatment with adding starch of carbon sources, respectively and showedsignificant difference between treatments (P <0.05). The highest increase in body weight(1640.43± 231.28 mg), growth rate (51.26± 7.23 mg per day), specific growth rate (8.97± 0.42%/day) and biomass (190.29± 26.83mg) was observed in biofloc treatment with adding molassand the highest survival rate (90± 0.77%) was obtained in biofloc treatment with adding mixtureof carbon sources. The highest feed conversion ratio (1.52±0.23) and the lowest feed efficiency(66.81±7.95) were obtained in water exchange treatment without floc, showing significantdifference compared to the other treatments (P <0.05). The results showed that using biofloctechnology with zero- water exchange system and adding carbonaceous organic matter could helpto recycle waste and improve the water quality. Moreover, the presence of biofloc improvedgrowth performance, feed utilization and production of western white shrimp in zero waterecxhange rearing system.
https://isfj.areeo.ac.ir/article_116999_5ce015959b26aed0013c00f676960dac.pdf
2015-09-23
77
91
10.22092/isfj.2015.116999
carbon sources
biofloc technology
Water quality
Growth performance
survival
Litopenaeus vannamei
M.H.
Khanjani
khanjani.phd@hormozgan.ac.ir
1
AUTHOR
M.
Alizadeh
m_alizadeh47@yahoo.com
2
AUTHOR
M.M.
Sajadi
mmsajjadi@hotmail.com
3
AUTHOR
I.
Sorinezhad
i_sourinezhad@yahoo.com
4
AUTHOR
ORIGINAL_ARTICLE
a
مهمترین تولیدکنندگان اولیه سواحل صخره ای ماکروجلبک ها هستند. تحقیق حاضر به بررسی تغییرات زمان- مکانی، تعیین درصد پوشش و تاثیر عوامل غیرزیستی بر ماکروجلبک ها در سواحل سنگی حوضه جنوبی دریای خزر پرداخته است. 10 ایستگاه نمونه برداری درسواحل سنگی طبیعی و مصنوعی از آستارا تا بابلسر انتخاب و درطول یکسال هر 2 ماه یکبار از شهریور 92 تا تیر 93 توسط کوادراتcm 50×cm 50 به صورت تصادفی مورد نمونه برداری قرار گرفتند. ماکروجلبک های اپی بنتیک شامل دو جنس Cladophoraو Entromorphaازگروه جلبک های سبز و یک جنس به نام Laurencia از جلبک های قرمز می باشند. میانگین (± انحراف معیار) دمای آب 91/ 4±48/ 16 درجه سانتی گراد، شوری23/ 3±83/ 9 قسمت در هزار، pH 19/ 0±27 /8، اکسیژن محلول 18/ 10±89/ 9 میلی گرم بر لیتر و قابلیت رسانای آب 33/ 0±52/ 16 درثانیه انداز گیری شد. طبق نتایج حاصله بیشترین پوشش جلبکی مربوط به ماه شهریور (50/ 70 درصد) وکمترین مربوط به دیماه (50/ 21 درصد) می باشد و نتایج آزمون One-way ANOVA نشان داد که میانگین پوشش جلبکی در ماههای مختلف سال دارای اختلاف معنی داری است (p<0/05). آزمون تشابه زیستگاهی One-way ANOSIM نشان داد، درصد پوشش ایستگاه ها یکنواخت و مشابه هم است. بررسی فاکتورهای محیطی مشخص کرد، دما رابطه اثرگذاری با درصد پوشش ماکروجلبک ها در سواحل سنگی حوضه جنوبی دریای خزر دارد.
https://isfj.areeo.ac.ir/article_117000_078e988e0f29286d42113cbf111128c4.pdf
2015-09-23
139
150
10.22092/isfj.2015.117000
H.
Torabijefrodi
1
AUTHOR
H.
Taghavi
2
AUTHOR
M.R.
Rahimibashar
3
AUTHOR
M.
Rasta
4
AUTHOR