Zoobenthic invertebrate of Anzali Lagoon and their relation with organic matter of the bottom
Average rating
Cast your vote
You can rate an item by clicking the amount of stars they wish to award to this item.
When enough users have cast their vote on this item, the average rating will also be shown.
Star rating
Your vote was cast
Thank you for your feedback
Thank you for your feedback
Date
1999
Métadonnées
Afficher la notice complèteAbstract
The study was conducted in Anzali Lagoon (37 ̊ 28 N , 45 ̊ 25 E) in 38 stations during April 1994 to March 1996. In this study 13 biogroups were separated and counted. The abundance of most biogroups was very low, while that of the groups Chironomidae and Tubificidae were high and the abundance of the biogroup Amphipoda, Culicidae and Ephemeroptera was lower than the mentioned groups. Tubificidae was seen in all stations and all months of the year and its maximum density was 3740 organisms in each square meter. After Tubificidae the Chironomidae family had the second level of density. The total percentage of the organic substances of the bottom had not considerable changes in different month and its mean amount differed from 2.57% in the site of breakwater and the sea to 27.1% (maximum) in central portion of the lagoon. No considerable relation was observed between the amount of organic matter and the abundance of benthos in the region. According to the obtained results, Tubificidae and Chironomidae families showed little correlation with the bottom organic substances. The correlation of biogroup Ephemeroptera with the organic substances was greater than that of the 2 mentioned groups. Using the cluster type analysis and dendrograms made clear that the relation of biogroups Culicidae, Ephemeroptera and Tubificidae with the bottom organic substances was more than that of Chironomidae. Culicidae and Chironomidae showed close correlation with silt and clay of the bottom, but Tubificidae was more adaptable with the bottom fine particles.Journal
Iranian Scientific Fisheries JournalVolume
7Issue/Article Nr
4Page Range
pp.83-102Resource/Dataset Location
http://isfj.areo.ir/Collections