Molecular identification and distribution of insect larvae in the Lower Danube River
As a major component of freshwater ecosystems, insect species play an important role in nutrient cycling and are often used as bioindicators of water pollution. Although extensive studies have characterized insects from freshwater habitats, little is known about the distribution of these species alo...
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| Format: | Article |
| Language: | English |
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Sciendo
2022-03-01
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| Series: | Oceanological and Hydrobiological Studies |
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| Online Access: | https://doi.org/10.26881/oahs.2022.1.07 |
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| author | Menabit Selma Iancu Lavinia Pavel Ana B. Popa Adrian Lupascu Naliana Purcarea Cristina |
| author_facet | Menabit Selma Iancu Lavinia Pavel Ana B. Popa Adrian Lupascu Naliana Purcarea Cristina |
| author_sort | Menabit Selma |
| collection | DOAJ |
| description | As a major component of freshwater ecosystems, insect species play an important role in nutrient cycling and are often used as bioindicators of water pollution. Although extensive studies have characterized insects from freshwater habitats, little is known about the distribution of these species along the Lower Sector of the Danube River. Therefore, this survey conducted in the Danube section within the Romanian territory aimed to identify insect larvae belonging to seven different species of Odonata, Trichoptera, Ephemeroptera, Lepidoptera and Megaloptera by DNA barcoding and to investigate their distribution, density and frequency. A total of 41 quantitative macrozoobenthic samples were collected during two consecutive years (2019 and 2020). Species showed large differences in the distribution and density along different sections, and an overall tendency to populate downstream areas, except for Sialis morio. On the other hand, only Hydropsyche bulgaromanorum, Triaenodes bicolor and S. morio larvae were identified in the upstream section (Sulina branch). These data provide baseline information on the larger range of some of the most common aquatic insects in the Romanian Danube section in relation to several environmental parameters based on the first molecular identification of these species using COI gene sequencing. |
| format | Article |
| id | doaj-art-7b9209ca0aff4e8ba307203e5eb0ccc0 |
| institution | Kabale University |
| issn | 1897-3191 |
| language | English |
| publishDate | 2022-03-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Oceanological and Hydrobiological Studies |
| spelling | doaj-art-7b9209ca0aff4e8ba307203e5eb0ccc02025-01-20T11:10:24ZengSciendoOceanological and Hydrobiological Studies1897-31912022-03-01511748910.26881/oahs.2022.1.07Molecular identification and distribution of insect larvae in the Lower Danube RiverMenabit Selma0Iancu Lavinia1Pavel Ana B.2Popa Adrian3Lupascu Naliana4Purcarea Cristina5National Institute of Marine Geology and Geo-Ecology (GeoEcoMar), Bucharest, RomaniaInstitute of Biology Bucharest of Romanian Academy, Department of Microbiology, 296 Splaiul Independentei, 060031Bucharest, RomaniaNational Institute of Marine Geology and Geo-Ecology (GeoEcoMar), Bucharest, RomaniaNational Institute of Marine Geology and Geo-Ecology (GeoEcoMar), Bucharest, RomaniaNational Institute of Marine Geology and Geo-Ecology (GeoEcoMar), Bucharest, RomaniaInstitute of Biology Bucharest of Romanian Academy, Department of Microbiology, 296 Splaiul Independentei, 060031Bucharest, RomaniaAs a major component of freshwater ecosystems, insect species play an important role in nutrient cycling and are often used as bioindicators of water pollution. Although extensive studies have characterized insects from freshwater habitats, little is known about the distribution of these species along the Lower Sector of the Danube River. Therefore, this survey conducted in the Danube section within the Romanian territory aimed to identify insect larvae belonging to seven different species of Odonata, Trichoptera, Ephemeroptera, Lepidoptera and Megaloptera by DNA barcoding and to investigate their distribution, density and frequency. A total of 41 quantitative macrozoobenthic samples were collected during two consecutive years (2019 and 2020). Species showed large differences in the distribution and density along different sections, and an overall tendency to populate downstream areas, except for Sialis morio. On the other hand, only Hydropsyche bulgaromanorum, Triaenodes bicolor and S. morio larvae were identified in the upstream section (Sulina branch). These data provide baseline information on the larger range of some of the most common aquatic insects in the Romanian Danube section in relation to several environmental parameters based on the first molecular identification of these species using COI gene sequencing.https://doi.org/10.26881/oahs.2022.1.07aquatic insect larvae distributioncoi gene sequencingdanube riverdna barcodingsulina branch |
| spellingShingle | Menabit Selma Iancu Lavinia Pavel Ana B. Popa Adrian Lupascu Naliana Purcarea Cristina Molecular identification and distribution of insect larvae in the Lower Danube River Oceanological and Hydrobiological Studies aquatic insect larvae distribution coi gene sequencing danube river dna barcoding sulina branch |
| title | Molecular identification and distribution of insect larvae in the Lower Danube River |
| title_full | Molecular identification and distribution of insect larvae in the Lower Danube River |
| title_fullStr | Molecular identification and distribution of insect larvae in the Lower Danube River |
| title_full_unstemmed | Molecular identification and distribution of insect larvae in the Lower Danube River |
| title_short | Molecular identification and distribution of insect larvae in the Lower Danube River |
| title_sort | molecular identification and distribution of insect larvae in the lower danube river |
| topic | aquatic insect larvae distribution coi gene sequencing danube river dna barcoding sulina branch |
| url | https://doi.org/10.26881/oahs.2022.1.07 |
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