The Seasonal and Spatial Distribution of Trichoptera Larvae in the Araç Creek (Kastamonu, Karabük, Turkey)
Abstract
Aim of study: The larvae of different insect species are used to assess water quality at various pollution levels. The aim of this study was to determine the species composition and seasonal distribution of Trichoptera larvae of the Araç Creek and relation with physicochemical parameters.
Area of study: Benthic macroinvertebrates were collected between April and October 2013 seasonally to determine the trichopteran species of the Araç Creek.
Material and method: The samples were collected using a standard dip net (500µm). The trichopteran taxa were identified using Leica APO S8 binocular stereomicroscope. Environmental variables were measured in the field using portable instruments while total hardness was measured according to the standard analytical methods.
Main results: Fifteen trichopteran taxa were identified from the Araç Creek. Three of them could be identified at the genus level. The maximum number of trichopteran larvae were collected at station 2 (311 individuals) while the fewest trichopteran were collected at station 6 (87 individuals). Hydropsyche botosaneanui was found to be the dominant species in Araç Creek.
Research highlights: A total of 1223 larvae belonging to Trichoptera were collected from the Araç Creek. 15 taxa belonging to 9 genera of 8 different families (Brachycentridae, Hydropsychidae, Hydroptilidae, Lepidostomatidae, Leptoceridae, Limnephilidae, Psychomyiidae and Rhyacophilidae) were identified. The highest number of individuals was found in the spring season.
Keywords
Trichopteran Larvae, Araç Creek, Kastamonu, Turkey
Supporting Institution
Kastamonu University, Scientific Research Projects Coordination Department
Project Number
KUBAP-01/ 2012-10
References
- Baptista, D. F., Buss, D. F., Egler, M., Giovanelli, A., Silveira, M. P. & Nessimian, J. L. (2007). A multimetric index based on benthic macroinvertebrates for evaluation of Atlantic Forest streams at Rio de Janeiro State, Brazil. Hydrobiologia, 575(1), 83-94.
- Bispo, P. D. C., Oliveira, L. G., Bini L. M. & Sousa, K. G. D. (2006). Ephemeroptera, Plecoptera and Trichoptera assemblages from riffles in mountain streams of Central Brazil: environmental factors influencing the distribution and abundance of immatures. Brazilian Journal of Biology, 66(2B), 611-622.
- Bonada, N., Zamora-Muñoz, C., Rieradevall, M. & Prat, N. (2004). Trichoptera (Insecta) collected in Mediterranean river basins of the Iberian Peninsula: taxonomic remarks and notes on ecology. Graellsia, 60(1), 41-69.
- Brown, L. E., Hannah, D. M. & Milner, A. M. (2007). Vulnerability of alpine stream biodiversity to shrinking glaciers and snowpacks. Global Change Biology, 13(5), 958-966. http://dx.doi.org/10.1111/j.1365-2486.2007.01341.x
- Cummins, K. W. (1973). Trophic relations of aquatic insects. Annual Review of Entomology, 18, 183-206. https://doi.org/10.1146/annurev.en.18.010173.001151
- Darılmaz, M. C. & Salur, A. (2015). Annotated catalogue of the Turkish caddisflies (Insecta: Trichoptera). Munis Entomology & Zoology, 10(Suppl.), 521-734.
- Demirsoy, A. (1996). Genel ve Türkiye Zoocoğrafyası “Hayvan Coğrafyası, Meteksan A.Ş., Ankara, 630.
- Dohet, A. (2002). Are caddisflies an ideal group for the biological assessment of water quality in streams? Nova Supplementa Entomologica (Proceedings of the 10th International Symposium on Trichoptera) 15, 507-520.
- Edington, J. M & Hildrew, A. G. (1981). Caseless caddis larvae of the British isles., Freshwater Biological Association, 43, 91.
- Frutiger, A. (2004). Ecological impacts of hydroelectric power production on the River Ticino. Part 2: Effects on the larval development of the dominant benthic macroinvertebrate (Allogamus auricollis, Trichoptera), Archiv für Hydrobiologie, 159(1), 57-75.