|
Study on the Ecological Status of the Shadegan by Bentic Fone
|
Fozieh Esmaieli   , Mansour khalfeh nilsaz , Sara Sabzalizade , Najme Jahani |
| South of Iran aquaculture fishery research center |
|
|
Abstract: (6699 Views) |
| This research was done in 4 stations in shadegan wetland and one station in jarrahy river during 2008-2009. Monthly sampling was carried out by using of quadrate (625 cm2/area) and Peterson grab(225cm2).Total organic matter and grain size were measured by ignition loss method and sieve series method respectively. Totally 14 groups of macrobenthic were identified .The individual of Chironomidae family were the most abundant group (91 %) and the Oligocheats was the second group (4%).according to benthic frequency the highest and the lowest abundanancy was observed in Attaish and Shadegan out let station (in Doragh creek) respectively .The result of TOM and grain size analysis showed that in all station more than 78% silt-clay were observed and the range of TOM percentage was (3.14-18.17).The highest and the lowest value were measured in Muleh and Gar Gar stations respectively. The comparing of benthic animals abundancy in recent study and previous study in 1996-1997,showed that the macrobenthic was obviously more abundancy in Attaish and Rogbeh stations in the recent study. This increasing can be caused by high abundancy of the individual of Chironomidae family as the tolerant animals group, in disturbed and polluted condition. Also the range of diversity indices (H´) was from 37% to 99% that showed unstable and unfavorable ecological condition. |
|
| Keywords: Gastropods, Bivalves, Rocky shore, Tis, Chabahar, Oman Sea |
|
|
Full-Text [PDF 7473 kb]
(2898 Downloads)
|
Type of Study: Research |
Subject:
Special
Received: 2014/02/1 | Accepted: 2014/02/1 | Published: 2014/02/1
|
|
|
|
|
|
|
| Send email to the article author |
|
|
|
| Add your comments about this article |
|
|
|
