Winter has come and the field season is now ended...
At the end of October we pulled up the Thermistors chain we deployed at the beginning of June. The T chain (see image below) is just a simple rope with small electronic devices that measure continuously the water temperature at different depths. The string has an anchor on the bottom and a buoy on the surface to keep the rope straight and the thermistors at the same depths.
Temperature chain sketch
Daphnia from Vobster Quay samples (mid-May)
Many people reading the post title will think: What the heck is a Daphnia? A Daphnia is a tiny zooplankton - the little organisms in lakes and oceans eaten by fishes - with an average length of 1/3 mm and is a species very common in fresh water bodies. All the images in the post are taken with a microscope from one of our samples collected in Vobster Quay in mid-May and the first one precisely shows a (dead) Daphnia. Since our microscope does not have a place to insert a specific microscope camera, I used the microscope adapter Snapzooms which is cheaper and very simple to use and smartphones offer nowadays as much resolution as microscope cameras. (more…)
Vobster Quay from the jetty
5 days ago (12th May - yes my 28th birthday!), my supervisor and I went to Vobster Quay to do some preliminary measurments and check if that lake was suitable for my research.
Vobster is a natural lake 40 minutes from Bath (https://goo.gl/maps/EaqO8) with a maximum depth of 40 meters, very deep if compared to other nearby lakes. Vobster is a diving centre opened 7 days a week (yes, also during winter) and if you like diving there are nice and cool attractions to see! (more…)