A technique called environmental DNA or eDNA for short, is helping … identify the animal species present in our waterways. …
DNA is shed by aquatic life from their skin, scales, fluids and faeces. The technique is able to detect even minute traces of each species and the overall proportion of it within the water sample. The species of fish, birds, mammals, reptiles, plants, fungi, bacteria, insects, snails, worms and anything else are identified by comparing the DNA fragments to a reference database. This requires as little as a mug of water sucked through a filter, though more water increases the chance of detecting organisms.
Over the past couple of weeks Twitter user SirWB has published a fair few drone photos of Waikawa Beach. The following are posted with permission. All photos are from a drone and show various views of the river mouth, estuary and river, and Strathnaver.
Beware if you’re viewing using cell data — there are about 20 photos totalling around 10 MB. There is only one photo on the first page, the rest need a click to see them. No captions or alt text.
In this last hour of 2021 I’d like to remind you all to take a tour of the most excellent Christmas lights around Waikawa Beach. Starting with the huge tree at the village entrance, going through the village and around in Strathnaver many houses are displaying lights, from a simple string on the gate through to the magnificence of Wendy and Peter Clark’s display in James Street.
Take an evening tour and enjoy. Some of the lights are shown below. Thanks to all those who dedicated themselves to bringing a bit of sparkle to the end of a tough year.