This month I have done some hours of teaching at the University, which involved going with the students to 2 mountain rivers in northern Spain as part of their river ecology class. During the field trips, the students learned how to conduct different water measurements (pH, conductivity, stream flow) and how to collect invertebrate samples and identify major groups of biodindicators. The objective of these fieldtrips was to introduce students to basic fieldwork techniques and to directly examine several biotic and abiotic characteristics of the rivers on-site. In the following days, the students will work on the data collected and write a final report about the two study sites based on the results of their analyses.
The two rivers where sampling was conducted (river Trubia and river Teverga) are located in the Cantabrian mountains, in Asturias (Northern Spain). Both rivers form gorges and are surrounded by dense decidous forests with abundance of chestnut trees. During the fieldtrips we did not observe any large fauna but among the samples collected by the students there were a large number of interesting invertebrates, such as water snails, mayflies and tricopters, all of them indicators of good water quality.
More fieldtrip posts soon!