• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 43
  • 7
  • 7
  • 7
  • 7
  • 7
  • 7
  • 1
  • Tagged with
  • 74
  • 74
  • 27
  • 26
  • 21
  • 16
  • 14
  • 13
  • 10
  • 10
  • 9
  • 9
  • 8
  • 7
  • 7
  • 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.
41

Performance of Nile tilapia and yellow perch fed diets containing distillers dried grain with solubles and extruded diet characteristics /

Schaeffer, Travis W. January 2009 (has links) (PDF)
Thesis (M.S.)--Wildlife and Fisheries Sciences Dept., South Dakota State University, 2009. / Includes bibliographical references (leaves 80-102). Also available via the World Wide Web.
42

Fatty Acids Profiles of Yellow Perch (Perca flavescens) in Lakes of the Outaouais Region with and without Largemouth Bass (Micropterus salmoides) and Smallmouth Bass (Micropterus dolomieu)

Langevin, Karolanne January 2016 (has links)
Fatty acids (FAs) are used as trophic markers in aquatic food web studies, but few studies have quantified individual variability in FAs profiles over several sites in a range of conditions. I investigated whether FAs profiles of yellow perch (YP), Perca flavescens, vary with body size and between lakes with and without largemouth (Micropterus salmoides), and smallmouth bass (Micropterus dolomieu), the most common and abundant piscivores in lakes of the region. I analyzed the FAs of YP as well as zooplankton, benthic invertebrates, and prey fish collected from eight lakes where bass were either present or absent in the Outaouais region over the summer of 2016. I compared the growth rate of YP between the lakes and the YP in lakes without bass exhibited a slower growth rate. I also compared the FA signatures of YP using redundancy analysis (RDA). 23 FAs could be identified and quantified. FAs profiles were dominated by palmitic- (16:0), oleic- (18:1), stearic- (18:0), and palmitoleic acid (16:1). The RDA analysis based on FAs profiles of YP revealed variation along two main gradients (the presence of bass and the date of capture). The first two eigenvectors accounted for 42.1% of the variation (RDA1=27.6% and 2=14.6%). Arachidonic (20:4) and docosatrienoic (22:3) were the most correlated FAs with RDA1. Due to the sampling period, it was impossible to determine if the observed effects were due to the date of capture, the presence of bass, or a change in metabolism, but the last two were deemed as the most plausible explanations. It was concluded that the utility of FA signatures to quantify diet in natural environments is limited and that FAs might be more successful as markers in primary consumers and other lower trophic levels. It is recommended that a combination of FAs, stable isotopes, and modelling should be used in the future.
43

Quality and Nutritional Analysis of Aquaponic Tomatoes and Perch

Kralik, Brittany A. 24 May 2021 (has links)
No description available.
44

The effect of yellow perch on the trophic ecology of brook trout : the role of intraguild predation

Browne, David R., 1971- January 2007 (has links)
No description available.
45

A Fine-scale Analysis of Spatial and Temporal Population Genetic Patterns in the Yellow Perch (<i>Perca flavescens</i>)

Sullivan, Timothy J., Jr. 22 August 2013 (has links)
No description available.
46

Modeling the Effects of Turbidity on Age-0 Yellow Perch (Perca flavescens) in the Western Basin of Lake Erie

Manning, Nathan Farrell 27 November 2013 (has links)
No description available.
47

Utilization of Different Dietary Lipid and Tocopherol Sources in the Early Life Stages of Freshwater Finfish.

Grayson, John David January 2020 (has links)
No description available.
48

Viral Hemorrhagic Septicemia virus (VHSv) Infection in Lake Erie Yellow Perch, Perca flavescens, and its Effect on Feeding

Bergquist, Gregory M. 24 August 2012 (has links)
No description available.
49

ANALYSIS OF DIETARY OVERLAP BETWEEN YELLOW PERCH (PERCA FLAVESCENS) AND ROUND GOBY (NEOGOBIUS MELANOSTOMUS) IN WESTERN LAKE ERIE THROUGH GUT AND STABLE ISOTOPE ANALYSES

Marschner, Caroline A. 21 November 2003 (has links)
No description available.
50

Effects of the interaction of environmental factors (hypoxia and ammonia) on fish

Parker, Timothy Michael January 2013 (has links)
No description available.

Page generated in 0.0555 seconds