8142

• UCREFRP Catalog Number: 8142
• Author: Horn, M. J.
• Title: Nutritional Limitation of Recruitment in the Razorback Sucker ‎(
• USFW Year: 1996.
• Copyright Material: NO

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TABLE OF CONTENTS

Page

LIST OF TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . .. Xll

LIST OF FIGURES ................................................... XXI

SYMBOLS AND ABBREVIATIONS .................................... xxx
CHAPTER
1. OVERVIEW AND STATEMENT OF THE PROBLEM ................. 1

1. Introduction ............................................. . . . . . . 1

1. General Review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2. The Colorado River. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

A. Historic Conditions ............................ 7
B. EnvrronrnenuuChange....... ... ................ 11

D3IIls ................................. 12

Introduced Fishes .. . . . . . . . . . . . .. .. . . . . . .. 13

3. Study Organism, the Razorback Sucker. . . . . . . . . . . . . . . . . . . . .. 14

n. Description of the Study Area ................................... 19

m. Methods and Materials ........................................ 20

1. Experimenuu Approach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ., 20

2. Study Specimens .................................... 21

A. Wild Larvae. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 21

B. Larvae for Laboratory Study .......... . . . . . . . . . . . . .. 23

C. Experimenuu Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . .. 25

VII