NDLTD Global ETD Search
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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

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Showing 1 to 4 of 4 (0.021 seconds)

Spelling suggestions: "subject:"percid"" "subject:"exercida""

1

The impacts of algal control in catfish and percid aquaculture ponds

Tew, Kwee Siong 07 November 2003 (has links)
No description available.
Percid
Saugeye
Aquaculture
Algal control
Copper sulfate
2

Ecological effects of chemicals used in pond culture of catfish and percid fishes

Jacob, Annie Philip 24 June 2008 (has links)
No description available.
Biology
Ecology
Environmental Science
Fish Production
percid
catfish
plankton
fluridone
copper
3

Nadpočetný plůdek okouna říčního (Perca fluviatilis L.) v údolní nádrži Vír a jeho vliv na další trofické úrovně / Redundant fingerling of perch (Perca fluviatilis L.) in Vír Reservoir and its impact on other trophic levels

VEJŘÍK, Lukáš January 2012 (has links)
The composition and preferences of depth levels and habitats of pelagic fingerling was studied in the canyon-shaped Vír Reservoir during years 2009-2011. The perch (Perca fluviatilis) fingerling was dominant in all three years. The density of fingerling was above the mean in years 2009 and 2010. It was as many as 278 individuals in 100m3(mean is 52 individuals in 100m3). A marked fall on 1,9 individual in 100m3 was registered in 2011. Perch fingerling was mainly observed in metalimnion during the day and also at night, where concentration of oxygen was very low. The highest density of perch fingerling was observed in the middle part within longitudinal profile. A significant difference was found in food composition among the years with high density and low density of fingerling. A predation of carp (Cyprinus carpio) and bream (Abramis brama) was proved during the years with high density of fingerling.
4

Induction of female monosex polyploid Yellow perch (Perca flavescens) and production of monosex stocks in order to increase efficiency of Yellow perch aquaculture

Miller, Mackenzie E. January 2020 (has links)
No description available.
Aquaculture
Fish Production

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