The HABRI Foundation is calling for research proposals to investigate the health outcomes of pet ownership and/or animal-assisted activity or therapy, both for the people and the animals involved. To learn more, visit close

You are here: Home / Reports / Species Diversity and Distribution of Fish in Lake Nicaragua / About

Species Diversity and Distribution of Fish in Lake Nicaragua

By Kurt W. Koenig, Richard J. Beatty, Sergio Martinez C.

View Link (HTM)

Licensed under

Category Reports

The results of a preliminary study of the abundance, diversity and distribution of some of the fish species in Lake Nicaragua are presented here. These parameters have received little attention from investigators working on the lake.
A frequently used measure of species diversity is the Shannon-Weiner diversity index. It measures the degree of uncertainty of predicting the species identity of a randomly selected individual (Pielou, 1966). Lloyd and Ghelardi (1964) indicated that species diversity indices are influenced by both the species number, or "richness", and the species "evenness", or relative number of individuals of a species in a given habitat. They proposed a measure of species evenness to facilitate comparisons between habitats for which species diversity indices have been calculated. Horn (1966) proposed an index to measure the "overlap" between samples taken from different habitats. This index is an objective measure of the dissimilarity, or heterogeneity, of a set of sampIes.


Megan Kendall

Purdue University

Date January 1976
Series Title Investigations of the Ichthyofauna of Nicaraguan Lakes
Pages 5
Publisher School of Life Sciences, University of Nebraska-Lincoln
Location of Publication Lincoln, Nebraska
Language English
Notes This article was found at Digital Commons @ the University of Nebraska-Lincoln:
Institution University of Nebraska-Lincoln
Cite this work

Researchers should cite this work as follows:

  1. Abundance
  2. Animal welfare
  3. Central America
  4. Fish
  5. Physical environment
  6. Social Environments
  7. species diversity
  8. Species Recognition