[Home ] [Archive]    
:: Main :: About :: Current Issue :: Archive :: Search :: Submit ::
Main Menu
Journal Information::
Articles archive::
For Authors::
For Reviewers::
Contact us::
Site Facilities::
Publication Ethics::
Indexed & full text in


Journal's Impact Factor


             "If you have any questions or concerns, please contact us by email

Journal`s Impact Factor 2023:0.985
Journal's Impact Factor ISC 2020: 0.476


Search in website

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

 پایگاه استنادی علوم جهان اسلام (ISC)

پایگاه اطلاعات جهاد دانشگاهی (SID) 

بانک نشریات کشور (مگیران)




Journal DOI

Journal DOI


:: Volume 18, Issue 1 (2019) ::
IJFS 2019, 18 Back to browse issues page
Scale characteristics of the bloom event: A case study in the Iranian coastal waters of the Southern Caspian Sea
A. Makhlough , H. Nasrollahzadeh Saravi * , F. Eslami , A.R. Keyhansani
Caspian Sea Ecology Research Center (CSERC), Iranian Fisheries Science Research Institute (IFSRI), Agricultural Research, Education and Extension Organization (AREEO), Sari, Iran , hnsaravi@gmail.com
Abstract:   (3162 Views)
Nutrient enrichment in water and sediments due to excessive anthropogenic activities in recent years has caused excessive algal growth in the Caspian Sea. The current study was conducted to determine the abundance of phytoplankton community, the dominant species and chlorophyll-a [Chl-a] concentration during algal blooms in the Iranian coastal waters of Caspian Sea through four seasons from 2013 to 2014. The minimum and maximum phytoplankton abundance recorded were 73±31 and 505±55 million cells m-3 in summer and winter, respectively. The median concentration of Chl-a increased to 5.81 mg m-3 in autumn, as compared to the annual median value (2.43 mg m-3). The results indicated that the bloom started in autumn and it continued falling with a low concentration during winter (Chl-a: 2.59 mg m-3). The three species Stephanodiscus socialis, Binuclearia lauterbornii and Thalassionema nitzschioides were classified in medium bloom class (100-1000 million cells m-3) in spring, summer and autumn, respectively. While in winter Pseudonitzschia seriata (harmful species) and Dactyliosolen fragilissima were classified in medium bloom class with high relative frequency. The scaling of bloom abundance revealed that bloom initiation coincided with 10 million cells m-3 of the dominant phytoplankton species. The bloom at the regions with more than 100 million cells m-3 of total phytoplankton abundance and dominant species was overlapped with the bloom regions based on Chl-a concentration. 
Keywords: Phytoplankton, Bloom, Scale characteristics, Caspian Sea, Iran
Full-Text [PDF 589 kb]   (1921 Downloads)    
Type of Study: Orginal research papers |
Received: 2018/12/25 | Accepted: 2018/12/25 | Published: 2018/12/25
Send email to the article author

Add your comments about this article
Your username or Email:


XML     Print

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

Makhlough A, Nasrollahzadeh Saravi H, Eslami F, Keyhansani A. Scale characteristics of the bloom event: A case study in the Iranian coastal waters of the Southern Caspian Sea . IJFS 2019; 18 (1) :124-139
URL: http://jifro.ir/article-1-3724-en.html

Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Volume 18, Issue 1 (2019) Back to browse issues page
Iranian Journal of Fisheries Sciences Iranian Journal of Fisheries Sciences
Persian site map - English site map - Created in 0.06 seconds with 44 queries by YEKTAWEB 4624