Evaluation of Habitat Suitability Index Models for Riverine Life Stages of American Shad, with Proposed Models for Premigratory Juveniles.

Abstract

Field evaluations of existing habitat suitability index (HSI) models for spawning adults, eggs, and larvae of American shad (Alosa sapidissima) were conducted in 1990-92; initial models for juveniles in nursery habitats were developed. Fish abundance in various habitats of the upper Delaware River was quantified by (1) observation of adult spawning activity, (2) collection of eggs and larvae with metered plankton and drift nets, and (8) enumeration of juveniles by underwater observation and seining techniques. Regression analysis, principal component analysis, and range analysis were used to relate abundance to an array of physical habitat variables potentially influencing fish distributions.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1993
Accession Number
ADA322728

Entities

People

  • Randy M. Bennett
  • Robert M. Ross
  • Thomas W. Backman

Organizations

  • United States Fish and Wildlife Service

Tags

DTIC Thesaurus Topics

  • Birds
  • Data Mining
  • Data Science
  • Databases
  • Factor Analysis
  • Fish
  • Fisheries
  • Habitats
  • Information Science
  • Knowledge Management
  • Regression Analysis
  • Slope
  • Surveys
  • Wildlife

Fields of Study

  • Environmental science

Readers

  • Aquatic Ecology
  • Computational Modeling and Simulation