Sökning: "multimesh gillnet"

Hittade 2 uppsatser innehållade orden multimesh gillnet.

1. 1. Hur livshistoriekaraktärer hos Europeisk abborre (Perca fluviatilis L.) påverkas av cykliska förändringar i populationsstrukturen

   Kandidat-uppsats, SLU/Dept. of Wildlife, Fish and Environmental Studies

   Författare :Christian Andersson; [2012]
   Nyckelord :abborre ; Perca fluviatilis; livshistoria; tusenbröder; ålder; längd och vikt vid könsmognad;

   Sammanfattning : This report deals with life-history variation for Eurasian perch (Perca fluviatilis L.), with special emphasis on age and size at maturity in females, in perch populations that have changed in size distribution. The collection of fish samples was made with multimesh gill nets year 2011. LÄS MER

3. 2. Early to late summer fish distribution in a bay of the Gulf of Bothnia

   L3-uppsats, SLU/Dept. of Wildlife, Fish and Environmental Studies

   Författare :Anders Kagervall; [2008]
   Nyckelord :Bothnian bay; brackish-water; temporal variation; multimesh gillnet; perch; roach; ruffe; trout;

   Sammanfattning : This study examined the fish community in a shallow bay in the Gulf of Bothnia during the summer of 2007. The distribution of several fishsh species within the bay was investigated. Possible influence on trout is discussed. Fish was sampled eight times at three different areas of the bay starting 4th of June and ending 7th of September. LÄS MER