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Showing posts with the label Rivers

Freshwater jellyfish in France.

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This summer we experienced a very long period of drought and two scorching heat waves which are probably the reason for an unusual and little known phenomenon to occur in the Vienne departement along with other parts of west and southwest France ! These were exactly the right conditions when the water warms sufficiently for the emergence of a tiny freshwater jellyfish, craspedacusta sowerbii.   They are normally only seen when they take the form of a small bell-shaped jellyfish known as a hydromedusa and float near the surface of the water but this requires a water temperature of at least 25°C and forms only one part of their interesting lifecycle. As a jellyfish they are 20–25 mm in diameter, somewhat flatter than a hemisphere, and very delicate. They have a whorl of up to 400 tentacles tightly packed around the bell margin. Hanging down from the center of the inside of the bell is a large stomach structure called a manubrium, with a mouth-opening and four frilly l...

An Aesculapian snake fell in the river today.

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Having injured my back which has put a temporary halt to all strenuous activity and as it’s been 31°C this afternoon I thought I’d have a wander by the River Charente just to the east of Civray where I could mooch about in the shade of the trees and see what, if anything, turned up or just being lazy in other words, something I'm quite experienced in. The river Charente has had Asian Hornets almost since they arrived in France as they appeared to follow the river and the tall poplar tree plantations that board the river have provided ideal places for them to make their nests. With this in mind it was no surprise to see some flying around by the riverside but my interest was taken by the fact that they were taking nectar from Water Figwort and stopped to take a few photos, or rather try to as they wouldn't stay still.   Click on photos to enlarge. It’s worth mentioning at this point that the River Charente is a very clean river in the upper reach...

On the trail of Otters and Beavers in La Vienne

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20 years or so ago it would have been impossible to find an Otter or Beaver in any of the rivers and waterways of the Vienne department of France; in fact, the Otter was almost pushed to extinction in France and was only to be found in the Atlantic regions and the Massif Central by the 1980’s. Since then, there has been a steady improvement, with continuous recolonisation inland towards the east along the main river systems and their tributaries. In the Vienne department, we have the  Charente, which enters the sea near Rochefort, and the Vienne, a tributary of the  Loire . Both of these rivers also have numerous tributaries; notably, in the Vienne, these are the Clain and the Gartempe, which again have their tributaries. The situation with Beavers is somewhat different,  following their extinction in most of  France, with  reintroduction being required in many places. The only river in Poitou Charentes where a reintroduction was attempted was the Creuse...

Freshwater Clams and Mussels

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It may be 2013 but here in La France Profonde there are still shops that close for 2 hours or even more at lunch time. Then when they open you may well wonder why you bothered waiting because in many instances they don’t actually have what you want or perhaps they have it but it’s 5 times the price you can buy it for from the UK . Anyway, before I start moaning the point is that I spent about 45 minutes poking around by the river Charente near to Civray waiting for a shop to open. This wasn’t likely to be exciting in mid December but you never know what may turn up and it’s a lovely river. The alternative for killing time would be to look at Estate Agents windows or wander round LIDL and even I’m not that sad. It’s a spot near a sluice where there are always one or two Grey Wagtails,  Motacilla cinerea, (note to self to have a look for nesting activity in Spring-time), and sure enough there was one there on the bank-side – always a welcome sight. The river here can be qui...