Posts Tagged ‘Cottus gobio’

High diversity of fish in the newly created Fyleån Creek

Written by Ivan on . Posted in Host fish speices, River Fyleån, Studies

c gobio

In total five fish species were caught by electro fishing in Fyleån Creek. These parts of Fyleån Creek were re-created during 2013 by re meandering measures. The species caught were brown trout, three spined stickleback, bullhead, minnow and European eal. Clear evidence of spawning activities by brown trout was also noted. Interestingly, four of the species (eal excluded) are identified as potential hosts species for the thick shelled river mussel during its parasitic stage. The ecological response post restoration is fast and strong, in a positive direction indeed.

The highest diversity, and most individuals caught, were at sites with high habitat variability (gravel, stones, woody debris and vegetation), whereas sites with homogenous habitats (sand and fine organic matter) corresponded to low diversity and few individuals caught.

Bank erosion expose high abundances of woody debris. Something to bear in mind while discussing how to increase the habitat variability in Fyleån Creek during future discussions?

//Ivan

Lea brought Fyleån Creek LIFE

Written by Ivan on . Posted in Communication, Re-introduction of Unio crassus, River Fyleån

Success. After the press conference, the mussels echoed loudly the following days in no more than three major newspapers, two TV-channels and two radio shows.  

Sveriges RadioSVTTV4SydsvenskanYstad AllehandaSkånskanSupermiljöbloggen

For the first time in ever in Sweden, the thick shelled river mussel (Unio crassus) was subjected for re-introduction after being farmed artificially in laboratory by Lea Schneider and parts of the UC4LIFE crew.

During the press conference, we focused on the scientific part of the project, and the fact that we have cracked the life cycle enigma (the identification of host fish species) and developed farming techniques which able us to breed and re- introduce juvenile mussels into areas where it has become extinct.

Approximately 2000 juveniles of Europe’s most threatened mussel species were released in the newly re-meandered Fyleån Creek. The mussels were put into enclosures, so that survival and growth rates can be monitored in the future.

We are grateful for the creative support by the Landowners; Högestad and Röddingeberg, The Water Council, Tomelilla Municipality and the people in the Valley!

UC4LIFE//Ivan and Lea

 

 

Samarbetspartners & Finansiärer