Essays about: "Wels catfish"
Found 4 essays containing the words Wels catfish.
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1. A recipe for fish and SNPs : Filling the blanks for conservation genomics of Swedish wels catfish (Silurus glanis) populations
University essay from Uppsala universitet/Institutionen för ekologi och genetik; Uppsala universitet/Institutionen för biologisk grundutbildningAbstract : Swedish populations of Wels catfish (Silurus glanis) experienced severe declines during the 19th and 20th centuries. The main causes for the decline were loss of suitable spawning habitat and fragmentation of populations. Currently, three native and two reintroduced populations remain in Sweden. READ MORE
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2. Habitat Preference and Activity Pattern of Wels Catfish (Silurus glanis) at its Northernmost Distribution Area.
University essay from Linköpings universitet/Institutionen för fysik, kemi och biologiAbstract : Knowledge of Wels Catfish (Silurus glanis) at its northernmost distribution area is limited on even basic behavioral characteristics, such as habitat preferences and activity patterns. It has thus proven difficult to aid the species in any predictable way. READ MORE
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3. Defining habitat demands of Wels catfish (Silurus glanis) in a Swedish lake : a look into muddy waters
University essay from SLU/Dept. Of Aquatic ResourcesAbstract : The wels catfish (Silurus glanis) is a rare species in Swedish waters, it demands higher water temperatures than most lakes and rivers can offer. One of the few locations with naturally occurring wels catfish in Sweden is Lake Båven, situated about an hour and a half south of Stockholm, in the county of Södermanland. READ MORE
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4. Sampling methods of the wels catfish (Silurus glanis) in freshwater lakes : management of a vulnerable species
University essay from SLU/Dept. Of Aquatic ResourcesAbstract : Sweden hosts the northernmost natural population of wels catfish (Silurus glanis) in the world. The populations of the species decreased severely in the 20th century, mainly due to different sources of anthropogenic impact. READ MORE