Study on risk factors in rainbow trout breeding and rearing farms based on water environmental parameters in the Haraz River
This study was carried out to determine the water environmental parameters as risk factors for rainbow trout breeding and rearing farms in the Haraz River. 84 water samples were collected at 6 stations during seven months in 2017-2018. Water samples were analyzed by standard titration and spectropho...
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| Format: | Article |
| Language: | fas |
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Iranian Fisheries Research Organization
2019-01-01
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| Series: | Majallah-i ̒Ilmī-i Shīlāt-i Īrān |
| Subjects: | |
| Online Access: | http://isfj.areo.ir/article_119533_en.html |
| _version_ | 1819049201984602112 |
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| author | H. Nasrollahzadeh Saravi; M. Ghiasi; R. Safari; A. Makhlough; A. Nasrollahtabar; V. Mohammadzadeh; A. Monemi |
| author_facet | H. Nasrollahzadeh Saravi; M. Ghiasi; R. Safari; A. Makhlough; A. Nasrollahtabar; V. Mohammadzadeh; A. Monemi |
| author_sort | H. Nasrollahzadeh Saravi; M. Ghiasi; R. Safari; A. Makhlough; A. Nasrollahtabar; V. Mohammadzadeh; A. Monemi |
| collection | DOAJ |
| description | This study was carried out to determine the water environmental parameters as risk factors for rainbow trout breeding and rearing farms in the Haraz River. 84 water samples were collected at 6 stations during seven months in 2017-2018. Water samples were analyzed by standard titration and spectrophotometry. Results showed that the range of water temperature (4.0-17.0◦C), weather temperature (5.0-28.0◦C), dissolved oxygen (7.36-14.24 mg/l), BOD5 (0.20-20.80 mg/l), COD (3.50-41.40 mg/l), electro-conductivity (345-650 µS/cm), turbidity (2-81 NTU), TSS (0.01-0.72 g/l), pH (6.98-8.15), TP/P (0.01-0.15 mg/l), PO43- (0.01-0.20 mg/l), NH4+ (0.02-0.31 mg/l), NH3 (0.14-4.36 µg/l), NO2- (0.01-0.21 mg/l), fecal coliform (9-30000 CFU/100ml) and water quality index (48.5-98.5) were changed. The results of the stepwise regression analysis indicated that the risk factors of water quality in the Haraz River were fecal coliform, phosphate, turbidity, and BOD5 parameters, and fecal coliform had a higher coefficient factor (beta coefficient) than other parameters (p<0.05). As a result, according to the average water index of stations (less than 55), water of the Haraz River is contaminated and critical to breeding and rearing trout, but it has acceptable microbial count for fish farming and wildlife. In addition to seasonal conditions such as environmental conditions and rainfall, the way of pound managing has been effective in maintaining water quality. |
| first_indexed | 2024-12-21T11:28:24Z |
| format | Article |
| id | doaj.art-5269a0b29fe34d31b653d36971dc64b1 |
| institution | Directory Open Access Journal |
| issn | 1026-1354 2322-5998 |
| language | fas |
| last_indexed | 2024-12-21T11:28:24Z |
| publishDate | 2019-01-01 |
| publisher | Iranian Fisheries Research Organization |
| record_format | Article |
| series | Majallah-i ̒Ilmī-i Shīlāt-i Īrān |
| spelling | doaj.art-5269a0b29fe34d31b653d36971dc64b12022-12-21T19:05:37ZfasIranian Fisheries Research OrganizationMajallah-i ̒Ilmī-i Shīlāt-i Īrān1026-13542322-59982019-01-012856778Study on risk factors in rainbow trout breeding and rearing farms based on water environmental parameters in the Haraz RiverH. Nasrollahzadeh Saravi; M. Ghiasi; R. Safari; A. Makhlough; A. Nasrollahtabar; V. Mohammadzadeh; A. MonemiThis study was carried out to determine the water environmental parameters as risk factors for rainbow trout breeding and rearing farms in the Haraz River. 84 water samples were collected at 6 stations during seven months in 2017-2018. Water samples were analyzed by standard titration and spectrophotometry. Results showed that the range of water temperature (4.0-17.0◦C), weather temperature (5.0-28.0◦C), dissolved oxygen (7.36-14.24 mg/l), BOD5 (0.20-20.80 mg/l), COD (3.50-41.40 mg/l), electro-conductivity (345-650 µS/cm), turbidity (2-81 NTU), TSS (0.01-0.72 g/l), pH (6.98-8.15), TP/P (0.01-0.15 mg/l), PO43- (0.01-0.20 mg/l), NH4+ (0.02-0.31 mg/l), NH3 (0.14-4.36 µg/l), NO2- (0.01-0.21 mg/l), fecal coliform (9-30000 CFU/100ml) and water quality index (48.5-98.5) were changed. The results of the stepwise regression analysis indicated that the risk factors of water quality in the Haraz River were fecal coliform, phosphate, turbidity, and BOD5 parameters, and fecal coliform had a higher coefficient factor (beta coefficient) than other parameters (p<0.05). As a result, according to the average water index of stations (less than 55), water of the Haraz River is contaminated and critical to breeding and rearing trout, but it has acceptable microbial count for fish farming and wildlife. In addition to seasonal conditions such as environmental conditions and rainfall, the way of pound managing has been effective in maintaining water quality.http://isfj.areo.ir/article_119533_en.htmlEnvironmental parameters; Water; Risk factors; Rainbow trout pounds; Haraz River |
| spellingShingle | H. Nasrollahzadeh Saravi; M. Ghiasi; R. Safari; A. Makhlough; A. Nasrollahtabar; V. Mohammadzadeh; A. Monemi Study on risk factors in rainbow trout breeding and rearing farms based on water environmental parameters in the Haraz River Majallah-i ̒Ilmī-i Shīlāt-i Īrān Environmental parameters; Water; Risk factors; Rainbow trout pounds; Haraz River |
| title | Study on risk factors in rainbow trout breeding and rearing farms based on water environmental parameters in the Haraz River |
| title_full | Study on risk factors in rainbow trout breeding and rearing farms based on water environmental parameters in the Haraz River |
| title_fullStr | Study on risk factors in rainbow trout breeding and rearing farms based on water environmental parameters in the Haraz River |
| title_full_unstemmed | Study on risk factors in rainbow trout breeding and rearing farms based on water environmental parameters in the Haraz River |
| title_short | Study on risk factors in rainbow trout breeding and rearing farms based on water environmental parameters in the Haraz River |
| title_sort | study on risk factors in rainbow trout breeding and rearing farms based on water environmental parameters in the haraz river |
| topic | Environmental parameters; Water; Risk factors; Rainbow trout pounds; Haraz River |
| url | http://isfj.areo.ir/article_119533_en.html |
| work_keys_str_mv | AT hnasrollahzadehsaravimghiasirsafariamakhloughanasrollahtabarvmohammadzadehamonemi studyonriskfactorsinrainbowtroutbreedingandrearingfarmsbasedonwaterenvironmentalparametersintheharazriver |