9528 ‎(2)‎

• UCREFRP Catalog Number: 9528
• Author: Martinez, P. and N. P. Nibbelink.
• Title: Colorado Nonnative Fish Stocking Regulation Evaluation.
• USFW Year: 2004.
• USFW - Doc Type: Grand Junction, Laramie.
• Copyright Material: NO

TABLE OF CONTENTS
' LIST OF TABLES-------------------------------------------------------------------------------------------------- -------------------- iv
LIST OF FIGURES vi
' ACKNOWLEDGEMENTS.----------------------------------------------------------------------------------• -------------------- ix
' EXECUTIVE SUMMARY ..............:.........•--------------...------........---------------...--------.. .._.._...---......_. x
INTRODUCTION._.------------------------------------•---------------------...........------...--------.....----- -------------------- 1
' General--------------------------------------------•-------------.._..-•---------.._._......-----------....._.. _.....-------------- 1
Background------------------------------------------------------------------------------------------------- -------------------- 1
Purpose and Objectives...---------•--••-----•--------•---• .......................................... .................... 2
'
METHODS--------------------------------------------•---._...-----------••-------•-•--•-------....-------••------._... ----.....----------- 3
Study Area-------------------------------------------------------------------------------------------------- -------------------- 3
Overview--•---------------------------•------._.........-•----•--.....------•-------------•----•---------•-•• ------•-----•------- 3
' Pond, Lake and Reservoir Locations, and Hydrography,_________________________ ____________________ 4
Pond Sampling and Reclamation Data _....--•--------------------------------------------- --------------•----- 5
' Pre- and Post-Regulation Fish Stocking Data. .......................................... .................... 6
Vendor sales receipts-----------------------•------- --------- ------•-- ---•----- •--.. .--- -----------•--- 6
CDOW private stocking permits. .......................................•------..... ---....--•--•---•--- 7
' CDOW importation permits.. ......................................•-------•----.....- --•------.......---- 7
CDOWprivate and commercial lake licenses______________________________ _________________•__ 7
CDOWstocking records for public waters,______ ______•__ _________ _____ ____ _______________ 7
' Pre- and Post-Regulation Abundance of Nonnative Fishes_____________________ __•_______________-. 8
Visual pattern detection 9
Proximity analysis-------------••-------•-----....----....._..---•--•----•---•-----...-----• --...-•---••---...:. 9
' Geostatistical analysis ..................................•---------.............---------- --•--------•--------10
RESULTS 11
1 -------------------------------•-•-----------._.............-------..__........_..........._.__........._..........----------•--•---
Pond, Lake and Reservoir Locations, and Hydrography_____________________________________________11
Pond Sampling and Reclamation Data -------------------------------------------------------------------------12
Pre- and Post-Regulation Fish Stocking Data.______________________________________________________________13
Pre- and Post-Regulation Abundance of Nonnative Fishes___ _________ _________ _______________ 15
Visual pattern detection_•------•-•--.....----•--------------------------------------------------------------15
Proximity analysis------------------------------------------------------------------------•--•-------.......__._ 17
' Geostatistical analysis.---------•----------------•-••-•--•----------------•-------...-----•-------.....------18
DISCUSSION--------------------------------------------------------------------------------•-----------..._._.........------------------19
' Pond, Lake and Reservoir Locations, and Hydrography_____________________________________________ 19
Pond Sampling and Reclamation Data ---------------------------------•---•---------...-----..._.......------.20
' Pre- and Post-Regulation Fish Stocking Data______________________________________________________________20
Pre- and Post-Regulation Abundance of Nonnative Fishes_•_ _________ _________ _______________21
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