Comparison of trophic structure of the benthic macroinvertebrates  in three Bulgarian riverine water bodies

Maria KERAKOVA; Yordan UZUNOV; Emilia VARADINOVA

Makale detayları

Comparison of trophic structure of the benthic macroinvertebrates in three Bulgarian riverine water bodies

Yazarlar:

Maria KERAKOVA | Yordan UZUNOV | Emilia VARADINOVA

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Zoology 2017 Vol.41 Issue 2, pp.267-277

Belge Tipi:

Makale

Yayın Tarihi:

3/2017

Belge Dili:

Türkçe

Document ID (Org No.):

2000774121

Sıklık:

İki Aylık

eISSN:

1303-6114

pISSN:

1300-0179

Özet:

 

The trophic structure of benthic macroinvertebrates in three different types of running water bodies subjected to varying  degrees of anthropogenic pressure was analyzed. A seasonal survey was conducted at three Bulgarian rivers in 2011. An adapted version  of the multihabitat sampling method was applied along with measuring physical and chemical variables. The ecological status was  defined by means of biotic and trophic indexes. Distribution of the functional feeding groups shows that the most sensitive groups,  shredders and scrapers, dominate the trophic structure of the mountain river types. In contrast, groups of deposit feeders and filterers  prevail at the foothill and plain rivers. Multidimensional scaling plot and redundancy analysis demonstrated that anthropogenic  impact and altitude are the main factors determining the distribution of the benthic macroinvertebrates by different functional groups.  Seasonality has no leading role in the trophic structure formation of the benthic communities. Our results showed a difference between  the trophic composition of the macrozoobenthos found in the mountain sections and those found in the foothill/plain stretches of the  rivers. A comparison between the last two areas demonstrated that there was no clear distinction between the trophic composition of  the functional feeding groups.

Makale detayları

Comparison of trophic structure of the benthic macroinvertebrates in three Bulgarian riverine water bodies

Yazarlar: Maria KERAKOVA | Yordan UZUNOV | Emilia VARADINOVA

Yayıncı: TUBITAK

Dergi: Turkish Journal of Zoology 2017 Vol.41 Issue 2, pp.267-277

Belge Tipi: Makale

Yayın Tarihi: 3/2017

Belge Dili: Türkçe

Document ID (Org No.): 2000774121

Sıklık: İki Aylık

eISSN: 1303-6114

pISSN: 1300-0179

Sayı

Yazarlar:

Maria KERAKOVA | Yordan UZUNOV | Emilia VARADINOVA

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Zoology 2017 Vol.41 Issue 2, pp.267-277

Belge Tipi:

Makale

Yayın Tarihi:

3/2017

Belge Dili:

Türkçe

Document ID (Org No.):

2000774121

Sıklık:

İki Aylık

eISSN:

1303-6114

pISSN:

1300-0179