[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 5 (1-2018) ::
isfj 2018, 26(5): 51-60 Back to browse issues page
Evaluation of organic matter, sediment type and distribution of macrobenthic species in the Boojagh Marine National Park, Southern Caspian Sea, Iran
S Bahrebar , H Negarestan * 1, A.V Maghsoudlou , A Danehkar
1- Department of Fisheries, Tehran North Branch, Islamic Azad University, Tehran, Iran
Abstract:   (4610 Views)
In this investigation, the amounts of organic matter, types of sediment and distribution of macrobenthic species in the Boojagh Marine National Park (BMNP) were studied. Sampling was conducted in six transects perpendicular to the beach using a Van Veen grab sampler using cross section of 20 cm with five replications. Samples were collected in five seasons (from summer 2015 to summer 2016). Each transect include three stations at various depths of 1, 5 and 10 meters. Samples were washed and fixed in formalin. Then, they were transferred to a laboratory for sorting and identification of different groups of macrobenthic taxons. The identified species were as follows; Cerastoderma glaucum, Mytilaster lineatus, Pyrgula grimmi, Anisus kolesnikovi, Stenogammarus carusui, Paraniphargoides motasi, Onisimus caspius, Pterocuma pectinatum, Pterocuma sowinskyi, Pseudocuma (Stenocuma) gracile, Naiss sp., Hypania invalida, Manayunkia caspica, Streblospio gynobranchiata, Hediste diversicolor and Amphibalanus improvisus. Evaluation of sediment composition indicated that the highest proportions belonged to sand with an average amount of 89/25%, whereas the lowest proportions belonged to clay with an average amount of 0/26%. with highly significant difference among sand identified with other particles (p<0/01). The average percentage of organic matter in the summer 2015 in the fourth transect at the depth of five meters was significantly lower than that of the others (p<0/01). The highest density of macrobenthos was at the depth of 10 meters. Macrobenthos density was the highest in the summer 2015 and was the lowest in the spring 2016 as compared to the other seasons.
 
Keywords: Macrobenthos, Boojagh national park, Kiashahr port, Gilan province
Full-Text [PDF 932 kb]   (1995 Downloads)    
Type of Study: Research | Subject: بيولوژي آبزيان
Received: 2017/07/16 | Accepted: 2018/01/13 | Published: 2018/01/13
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:

Bahrebar S, Negarestan H, Maghsoudlou A, Danehkar A. Evaluation of organic matter, sediment type and distribution of macrobenthic species in the Boojagh Marine National Park, Southern Caspian Sea, Iran. isfj 2018; 26 (5) :51-60
URL: http://isfj.ir/article-1-1834-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 5 (1-2018) 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 0.06 seconds with 41 queries by YEKTAWEB 4645