1. History Of Catfishing On The River Ebro
Catfish are not indigenous to Spanish rivers and they are considered by Spanish anglers as an invasive species. Their introduction into the Ebro system is due entirely to the intervention of a ‘forward thinking’ German biologist. In the mid 70’s Roland Lorkowski singled out the Ebro as the perfect environment for the wels catfish to live and he introduced 32 small juveniles into the river system at Mequinenza. These juveniles soon became established in the rich river environment, and with thousands of small carp to feed on they grew very quickly. By the early 1980’s catfish of up to 80lb were being caught at Mequinenza, and the official Spanish record at this time was a fish of 99lb.
2. The appearance of many of these fish has been due to the arrival of fishing tourism. In 1974, a German biologist and fishing aficionado, one Roland Lorkowsky, released a few thousand fry of Wels Catfish ( Siluro - Silurus glanis ) into the River Ebro at Flix. The fish adapted frighteningly well to the warm murky waters and has now extended its range right up the Ebro basin, and into the River Segre (Lleida) and the River Cinca (Huesca). It has also colonized Lago Banyoles and Lago de Sau (Girona). The results have been catastrophic. In many stretches, the fish has almost completely wiped out several autochthonous species with its voracious appetite, hence its local nickname, 'The Ebro Monster'.
3.
http://biodeluna.wordpress.com/2011/07/ ... lorkowski/
4.
http://tvblogs.nationalgeographic.com/2 ... e-catfish/
5.
http://elpais.com/diario/2001/08/09/rev ... 50215.html
6.
http://lunkerangler.wordpress.com/tag/roland-lorkowski/
7.
http://www.yasni.info/ext.php?url=http% ... =us&rip=mk
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