[Home ] [Archive]   [ فارسی ]  
:: Main :: About :: Current Issue :: Archive :: Search :: Submit :: Contact ::
Search in website

Advanced Search
..
Receive site information
Enter your Email in the following box to receive the site news and information.
..
Indexing:
..
RSS

AWT IMAGE

..
:: Volume 26, Issue 6 (3-2018) ::
isfj 2018, 26(6): 1-11 Back to browse issues page
Feasibility study of cage fish farming based on physico-chemical parameters effective on water quality and eutrophication trend at less than 15 meter depth in southeast region of the Caspian Sea (Goharbaran region)
H. Nasrollahzadeh Saravi * 1, F. Vahedi1 , A. Nasrollahtabar1 , A. Makhlough1 , M. Afraei1 , N. Pourang2
1- Caspian Sea Ecology Research Center, Iranian Fisheries Science Research Institute, Agricultural Research, Education and Extension Organization, Sari, Iran
2- Iranian Fisheries Science Research Institute, Agricultural Research, Education and Extension Organization, Tehran, Iran
Abstract:   (6505 Views)

The aim of this project was to study the feasibility of cage fish farming based on the evaluation of physico-chemical parameters effective on water quality and the trophic status (scaled and unscaled) at various depths of water and different months in the southeast of the Caspian Sea (Goharbaran region). The total numbers of 154 samples were collected at eight stations from three depths (5, 10 and 15 m) during 12 months. Results showed that the amounts of water temperature, transparency, pH, dissolved oxygen, BOD5, total alkalinity and TSS ranged from 9.00 to 29.00˚C, 0.50 to 12.00 m, 8.05 to 8.74, 5.76 to 12.85, 21 to 195 and 0.00 to 0.12 mg/l, respectively. In addition, the values of NH4+, NH3, NO2-, NO3- and PO4-3 ranged from 0.007 to 0.051, 0.001 to 0.010, 0.002 to 0.015, 0.043 to 0.477 and 0.014 to 0.077 mg/l, respectively. Scaled and unscaled trophic index were 3.42-5.52 and 2.61-5.85, respectively. Therefore, the proper temperatures for cultivation of salmonids species in this area were begun in October and ended in March. In the current study, results of pH and dissolved oxygen were consistent with the standard range of pH (7.80-8.50) and dissolved oxygen (>5 mg/l) for cage fish farming. Although, Goharbaran region were appropriate for cage fish farming in terms of  nutrients, but this region was evaluated as mesotrophic (5.97±0.73) with high risk of eutrophication (>4).
 

Keywords: Physico-chemical parameters, Trophic Status, Cage fish farming, Caspian Sea, Goharbaran
Full-Text [PDF 759 kb]   (2155 Downloads)    
Type of Study: Research | Subject: اكولوژي محيطهاي آبي
Received: 2017/03/23 | Accepted: 2018/02/28 | Published: 2018/02/28
Send email to the article author

Add your comments about this article
Your username or Email:

CAPTCHA



XML   Persian Abstract   Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Nasrollahzadeh Saravi H, Vahedi F, Nasrollahtabar A, Makhlough A, Afraei M, Pourang N. Feasibility study of cage fish farming based on physico-chemical parameters effective on water quality and eutrophication trend at less than 15 meter depth in southeast region of the Caspian Sea (Goharbaran region). isfj 2018; 26 (6) :1-11
URL: http://isfj.ir/article-1-1777-en.html


Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Volume 26, Issue 6 (3-2018) Back to browse issues page

با کسب مجوز از دفتر کمیسیون بررسی نشریات علمی وزارت علوم، تحقیات و فنآوری مجله علمی شیلات بصورت آنلاین می باشد و تعداد محدودی هم به چاپ می رساند. شماره شاپای جدید آن ISSN:2322-5998 است

Persian site map - English site map - Created in 0.07 seconds with 41 queries by YEKTAWEB 4645