Journal of Aquaculture Development
نشریه توسعه آبزی پروری
JAD
Agriculture
http://aqudev.lahijan.iau.ir
1
admin
2322-3545
0000-0000
8
10.22034
14
8888
13
fa
jalali
1403
10
1
gregorian
2025
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18
4
online
1
fulltext
fa
روابط بین کربن آلی محلول، بار باکتریایی و ویژگیهای کیفی آب در آبندانهای پرورش کپورماهیان
Evaluation of dissolved organic carbon, bacterial load, and water quality parameters in culture reservoirs of warm water fishes
تخصصي
Special
پژوهشي
Research
<span style="font-size:11pt"><span style="line-height:normal"><span style="direction:rtl"><span style="unicode-bidi:embed"><span style="font-family:Calibri,sans-serif"> <span b="" lang="FA" style="font-family:" zar=""><span style="color:black">در این مطالعه، کربن آلی محلول، بار باکتریایی و ویژگی­های کیفی آب در سه آبندان پرورش ماهیان گرمابی هر کدام با وسعت 12، 7 و 20 هکتار در دو روستای کیاکلای استان مازندران بررسی شد. نمونه­­های آب از قسمت­های سطح و کف ورودی، سطح و کف میانی، و سطح و کف خروجی هر دو هفته یکبار برداشت شدند. روند تغییرات پارامترهای کیفی آب آبندان­ها نظیر دما، اکسیژن،</span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black">pH</span></span></span> <span b="" lang="FA" style="font-family:" zar=""><span style="color:black">، </span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black">DOC</span></span></span><span b="" lang="FA" style="font-family:" zar=""><span style="color:black">، نیترات، آمونیاک، فسفات، بارباکتریایی و کلروفیل آ مورد آزمایش قرارگرفت. همبستگی تمامی پارامترها در طول دوره­ی پرورش با توجه به طبیعی بودن محیط پرورش و تاثیرگذاری عوامل محیطی بررسی شد. کمترین و بیشترین میانگین دما در این سه آبندان به ترتیب در فروردین و تیر اندازه­گیری شدند. حالت قلیایی و مطلوب </span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black">pH</span></span></span><span b="" lang="FA" style="font-family:" zar=""><span style="color:black"> (9-7) در طول دوره­ی پرورش ثبت شد. بیشترین مقادیر میانگین کربن آلی محلول (</span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black">DOC</span></span></span><span b="" lang="FA" style="font-family:" zar=""><span style="color:black">) در سه آبندان به ترتیب 9/0</span></span><span lang="FA" style="color:black">±</span><span b="" lang="FA" style="font-family:" zar=""><span style="color:black">29/15، 6/2 </span></span><span lang="FA" style="color:black">±</span><span b="" lang="FA" style="font-family:" zar=""><span style="color:black">64/14 و 6/1</span></span><span lang="FA" style="color:black">±</span><span b="" lang="FA" style="font-family:" zar=""><span style="color:black">70/18 </span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times="">mg</span></span><span dir="LTR" new="" roman="" style="font-family:" times="">/l</span> <span b="" lang="FA" style="font-family:" zar=""><span style="color:black">در شهریور و مهر مشاهده شد. کمترین مقادیر میانگین به ترتیب 01/0</span></span><span lang="FA" style="color:black">±</span><span b="" lang="FA" style="font-family:" zar=""><span style="color:black">96/3، 0</span></span><span lang="FA" style="color:black">±</span><span b="" lang="FA" style="font-family:" zar=""><span style="color:black">23/4 و 75/0</span></span><span lang="FA" style="color:black">±</span><span b="" lang="FA" style="font-family:" zar=""><span style="color:black">56/4 </span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times="">mg</span></span><span dir="LTR" new="" roman="" style="font-family:" times="">/l </span> <span b="" lang="FA" style="font-family:" zar=""><span style="color:black">در فروردین و اردیبهشت بدست آمد. بیشترین مقادیر میانگین بار باکتریایی (5/12</span></span><span lang="FA" style="color:black">±</span><span b="" lang="FA" style="font-family:" zar=""><span style="color:black">37430، 1/96</span></span><span lang="FA" style="color:black">±</span><span b="" lang="FA" style="font-family:" zar=""><span style="color:black">136367 و 5/73</span></span><span lang="FA" style="color:black">±</span><span b="" lang="FA" style="font-family:" zar=""><span style="color:black">82800 </span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black"><span style="layout-grid-mode:line">cfu</span></span></span></span><span dir="LTR" new="" roman="" style="font-family:" times=""><span style="color:black"><span style="layout-grid-mode:line">/g</span></span></span><span b="" lang="FA" style="font-family:" zar=""><span style="color:black">) در شهریور و مهر و کمترین مقادیر میانگین بار باکتریایی (2/61 </span></span><span lang="FA" style="color:black">±</span><span b="" lang="FA" style="font-family:" zar=""><span style="color:black">111، 2/21</span></span><span lang="FA" style="color:black">±</span><span b="" lang="FA" style="font-family:" zar=""><span style="color:black">223 و 2/16</span></span><span lang="FA" style="color:black">±</span><span b="" lang="FA" style="font-family:" zar=""><span style="color:black">134 </span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black"><span style="layout-grid-mode:line">cfu/g</span></span></span></span><span b="" lang="FA" style="font-family:" zar=""><span style="color:black">) در هر سه آبندان در فروردین برآورد گردید. </span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black">DOC</span></span></span><span b="" style="font-family:" zar=""><span style="color:black"> و آمونیاک در آبندان 1 دارای روند نزولی و بدون ارتباط معنی­دار </span></span><span b="" lang="FA" style="font-family:" zar="">(05/0</span><i><span dir="LTR" new="" roman="" style="font-family:" times="">p</span></i><span dir="LTR" new="" roman="" style="font-family:" times="">></span><span b="" lang="FA" style="font-family:" zar="">)،</span><span b="" lang="FA" style="font-family:" zar=""><span style="color:black"> در آبندان 2 دارای رابطه­ی صعودی و معنی­دار </span></span><span b="" lang="FA" style="font-family:" zar="">(05/0</span><i><span dir="LTR" new="" roman="" style="font-family:" times="">p</span></i><span dir="LTR" new="" roman="" style="font-family:" times=""><</span><span b="" lang="FA" style="font-family:" zar="">)،</span><span b="" lang="FA" style="font-family:" zar=""><span style="color:black"> و در آبندان 3 بدون رابطه­ی صعودی و معنی­دار بودند </span></span><span b="" lang="FA" style="font-family:" zar="">(05/0</span><i><span dir="LTR" new="" roman="" style="font-family:" times="">p</span></i><span dir="LTR" new="" roman="" style="font-family:" times="">></span><span b="" lang="FA" style="font-family:" zar="">)</span><span b="" lang="FA" style="font-family:" zar=""><span style="color:black">. بین بار باکتریایی و </span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black">DOC</span></span></span><span b="" style="font-family:" zar=""><span style="color:black"> در هر سه آبندان روابط صعودی و معنی­داری وجود داشت</span></span><span b="" lang="FA" style="font-family:" zar=""> (05/0</span><i><span dir="LTR" new="" roman="" style="font-family:" times="">p</span></i><span dir="LTR" new="" roman="" style="font-family:" times=""><</span><span b="" lang="FA" style="font-family:" zar="">). بر اساس نتایج حاضر، با اندازه­گیری </span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black">DOC</span></span></span> <span b="" lang="FA" style="font-family:" zar="">و مواد ازته آب می­توان نسبت کربن به ازت (</span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times="">C/N</span></span><span b="" lang="FA" style="font-family:" zar="">) در آب را پایش و متعادل کرد (15/1-20/1) تا کیفیت آب مطلوبی در جهت عملکرد مطلوب ماهیان پرورشی در استخر برقرار شود.</span></span></span></span></span></span>
<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri,sans-serif"><span new="" roman="" style="font-family:" times=""><span style="color:black"> In this study, dissolved organic carbon (DOC), bacterial load, and water quality parameters of three culture reservoirs of warm water fishes, each with areas of 12, 7, and 20 hectares, were investigated in two villages of Kiakola City in Mazandaran province. Water samples were collected from the inlet surface and floor, middle surface and floor, and outlet surface and floor every 2 weeks. Changes in the water quality parameters of reservoirs such as temperature, oxygen, pH, DOC, nitrate, ammonia, phosphate, barobacteria and chlorophyll a, and the correlation of all parameters were evaluated during the culture period in the natural culture environment. The process of changing parameters in each reservoir was variable due to separate fertilization and feeding management plans. The lowest and highest average temperatures in three reserviors were measured in April and July. Optimal alkaline pH (7-9) was recorded during the culture period. The highest average values of DOC (15.29±0.9, 14.64±2.6, and 18.70±1.6 mg/l) were observed in September and October in three reserviors. The lowest average DOC values (3.96 ± 0.01, 4.23 ± 0, and 4.56 ± 0.75 mg/l, respectively) were determined in April and May. The highest average values of bacterial load (37430±12.5, 136367±96.1, and 82800±73.5 cfu/g) were estimated in September and October and the lowest average values of bacterial load (111±61.2, 223 ± 21.2, and 134 ± 16.2 cfu/g) in April in all three reservoires. DOC and ammonia had a downward trend in reservoire 1 with no significant relationship (<i>p</i>>0.05), an upward significant relationship in reservoire 2 (<i>p</i><0.05), and no upward relationship significant (<i>p</i>>0.05) in reservoire 3. There was an upward and significant relationship between bacterial load and DOC in all three reservoires (<i>p</i><0.05). DOC and nitrogen content measurement of water allows to monitor and balance the carbon to nitrogen ratio (C/N) in water (1.15-1.20) to establish a good water quality in reservoires. The physical, chemical, and biological parameters in fish culture ponds should be monitored continuously for possible fluctuations to produce maximum and healthier products. Evaluation of the correlation between water quality, DOC, and microbial population can be used for the optimal performance of farmed fish.</span></span></span></span></span><br>
کربن آلی محلول (DOC), بار باکتریایی, آمونیاک, آبندان, ماهیان گرمابی
Organic Carbon, DOC, Bacterial Load, Ammonia, Warm Water Fishes.
56
76
http://aqudev.lahijan.iau.ir/browse.php?a_code=A-10-513-3&slc_lang=fa&sid=1
Maryam
Hasjemi Mojaver
مریم
هاشمی مجاوری
maryam.hashemi62@yahoo.com
100319475328460010665
100319475328460010665
No
Department of Fisheries, Faculty of Animal Science and Fisheries, Sari Agricultural Sciences and Natural Resources University (SANRU), Sari, Iran.
Mohammad Kazem
Khalesi
محمد کاظم
خالصی
khalesi46@gmail.com
100319475328460010666
100319475328460010666
Yes
Department of Fisheries, Faculty of Animal Science and Fisheries, Sari Agricultural Sciences and Natural Resources University (SANRU), Sari, Iran.
گروه شیلات، دانشکده علوم دامی و شیلات، دانشگاه علوم کشاورزی و منابع طبیعی ساری، مازندران
Sohrab
Kohestan Eskandari
سهراب
کوهستان اسکندری
s.e.kohestan@gmail.com
100319475328460010667
100319475328460010667
No
Department of Fisheries, Faculty of Animal Science and Fisheries, Sari Agricultural Sciences and Natural Resources University (SANRU), Sari, Iran.