Bar­bel zone

Anglers Mail - - Anglers -

The bar­bel zone is typ­i­cally the first low­land (or mid­dle) sec­tion of a river, but it can re­tain many of the char­ac­ter­is­tics of the up­land grayling zone.

The bar­bel zone tends to have a gen­tle gra­di­ent with a mod­er­ate cur­rent, usu­ally above 10 cm/s, and mod­er­ate tem­per­a­ture. Well oxy­genated, it tends to flow over a mixed sub­strate of silt and gravel. Chub, dace and min­nows from the grayling zone are usu­ally present, but there is rarely suf­fi­cient oxy­gen for grayling to thrive. Other no­table species be­gin­ning to ap­pear in this zone in­clude pike, perch, roach, rudd, eels and, of course, bar­bel. wa­ter, usu­ally be­low 10 cm/s. Wa­ter tem­per­a­ture and oxy­gen con­cen­tra­tions are more vari­able than in the other zones, as it can be tur­bid and usu­ally has a silty sub­strate.

The zone is typ­i­fied by species such as bream, carp, tench and gud­geon, with pike, perch, roach and rudd from the bar­bel zone also present.

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