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- Lake_Pohjalampi abstract "Lake Pohjalampi is a lake in eastern Finland. The lake has a surface area of 61 hectares, and the mean and maximum depth are 3.2 meters and 5.3 meters, respectively.The lake was used to study the effects of biomanipulation on a small, mesotrophic lake. From 1993 to 1997, over 200 kilograms per hectare of fish, mainly roach (Rutilus rutilus) and bream (Abramis brama) were caught and removed. This resulted in a reduction of nearly 80% of fish biomass. The effects on the benthic invertebrates were investigated using biomass and density, during the years of fish removal and for the following three years. The decrease in benthivorous fish stock led to higher biomass and density in all the major benthic invertebrate groups.Three years after fish removal had been discontinued, the fish biomass had recovered to almost its initial value; the community structure, however, was different because of much greater abundance of perch. The biomasses of the benthic invertebrates in many groups was seen to drop in the years 1999-2000, apparently due to the increased predation. The relationship between the two trophic levels is thought to be as a consequence of the open and sparsely vegetated bottom, which offers minimal shelter to invertebrate prey.An additional factor in the reduced invertebrate biomasses was a fall in both phosphorus and chlorophyll a concentrations, which led to a drop in primary production. The phosphorus and chlorophyll a decreases occurred after the three years of fishing and have remained low since. This could be related to the loss of waste products and detritus the fish would have produced over the years.".
- Lake_Pohjalampi areaTotal "610000.0".
- Lake_Pohjalampi averageDepth "3.2".
- Lake_Pohjalampi country Finland.
- Lake_Pohjalampi maximumDepth "5.3".
- Lake_Pohjalampi wikiPageID "9673008".
- Lake_Pohjalampi wikiPageLength "2733".
- Lake_Pohjalampi wikiPageOutDegree "16".
- Lake_Pohjalampi wikiPageRevisionID "679446750".
- Lake_Pohjalampi wikiPageWikiLink Benthic_zone.
- Lake_Pohjalampi wikiPageWikiLink Biomass_(ecology).
- Lake_Pohjalampi wikiPageWikiLink Bream.
- Lake_Pohjalampi wikiPageWikiLink Category:Ecological_experiments.
- Lake_Pohjalampi wikiPageWikiLink Category:Lakes_of_Finland.
- Lake_Pohjalampi wikiPageWikiLink Chlorophyll.
- Lake_Pohjalampi wikiPageWikiLink European_perch.
- Lake_Pohjalampi wikiPageWikiLink Finland.
- Lake_Pohjalampi wikiPageWikiLink Fish_stock.
- Lake_Pohjalampi wikiPageWikiLink Hectare.
- Lake_Pohjalampi wikiPageWikiLink Invertebrate.
- Lake_Pohjalampi wikiPageWikiLink Lake.
- Lake_Pohjalampi wikiPageWikiLink Mesotrophic_lake.
- Lake_Pohjalampi wikiPageWikiLink Phosphorus.
- Lake_Pohjalampi wikiPageWikiLink Rutilus.
- Lake_Pohjalampi wikiPageWikiLink Trophic_level.
- Lake_Pohjalampi wikiPageWikiLink Trophic_state_index.
- Lake_Pohjalampi wikiPageWikiLinkText "Lake Pohjalampi".
- Lake_Pohjalampi area "61.0".
- Lake_Pohjalampi basinCountries "Finland".
- Lake_Pohjalampi depth "3.2 m".
- Lake_Pohjalampi hasPhotoCollection Lake_Pohjalampi.
- Lake_Pohjalampi location "Eastern Finland".
- Lake_Pohjalampi maxDepth "5.3 m".
- Lake_Pohjalampi name "Lake Pohjalampi".
- Lake_Pohjalampi wikiPageUsesTemplate Template:Infobox_lake.
- Lake_Pohjalampi wikiPageUsesTemplate Template:Reflist.
- Lake_Pohjalampi subject Category:Ecological_experiments.
- Lake_Pohjalampi subject Category:Lakes_of_Finland.
- Lake_Pohjalampi hypernym Lake.
- Lake_Pohjalampi point "62.666666666666664 29.55".
- Lake_Pohjalampi type Article.
- Lake_Pohjalampi type BodyOfWater.
- Lake_Pohjalampi type Lake.
- Lake_Pohjalampi type NaturalPlace.
- Lake_Pohjalampi type Place.
- Lake_Pohjalampi type Article.
- Lake_Pohjalampi type Attraction.
- Lake_Pohjalampi type Location.
- Lake_Pohjalampi type BodyOfWater.
- Lake_Pohjalampi type LakeBodyOfWater.
- Lake_Pohjalampi type Place.
- Lake_Pohjalampi type Thing.
- Lake_Pohjalampi type SpatialThing.
- Lake_Pohjalampi type Q23397.
- Lake_Pohjalampi comment "Lake Pohjalampi is a lake in eastern Finland. The lake has a surface area of 61 hectares, and the mean and maximum depth are 3.2 meters and 5.3 meters, respectively.The lake was used to study the effects of biomanipulation on a small, mesotrophic lake. From 1993 to 1997, over 200 kilograms per hectare of fish, mainly roach (Rutilus rutilus) and bream (Abramis brama) were caught and removed. This resulted in a reduction of nearly 80% of fish biomass.".
- Lake_Pohjalampi label "Lake Pohjalampi".
- Lake_Pohjalampi sameAs m.02pnr4d.
- Lake_Pohjalampi sameAs Q6477405.
- Lake_Pohjalampi sameAs Q6477405.
- Lake_Pohjalampi lat "62.666666666666664".
- Lake_Pohjalampi long "29.55".
- Lake_Pohjalampi wasDerivedFrom Lake_Pohjalampi?oldid=679446750.
- Lake_Pohjalampi isPrimaryTopicOf Lake_Pohjalampi.
- Lake_Pohjalampi name "Lake Pohjalampi".