Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 3 of 3 for “"electivity index"”.
-
Food Habits and the Utilization of Drift Organisms by Larval Fishes in the Middle Fork of Drake's Creek, Kentucky
… during the last two weeks as larvae (Ivlev's Electivity Index). Common shiners selected for a greater variety of organisms during their first week while selecting only for dipterans during their last week. Northern hog suckers selected annelids, dipterans, and copepods throughout their larval …
-
Juvenile Green Turtle (chelonia Mydas) Foraging Ecology:feeding Selectivity And Forage Nutrient Analysis
… To determine feeding preference, Ivlev's Electivity Index was used to compare ingested species of algae with those available in the habitat. Nutritional analysis of forage was conducted to identify possible nutrients relating to feeding preference. Juvenile green turtles selectively …
-
Food Habits of Young-of-the-Year Fishes in Abbey Pond, South Dakota
… consumed by young fishes. Using Ivlev’s electivity index food electivity by the fishes for zooplankton was calculated. The size-specific food habits of young-of-the-year largemouth bass progressed from entomostracans to aquatic insects to fish. In most cases zooplanktons were negatively …