DOCSLIB.ORG

Northwestern Ontario Population Finescale Dace

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Northwestern Ontario Population Finescale Dace ESTIMATION OF THE ABUNDANCE,BIOMASS AND GROWTHOF A NORTHWESTERNONTARIO POPULATION OF FINESCALEDACE (PHOXINUS ~OGAEUS), WlTH COMMENTSON THE SUSTAINABILITYOF LOCAL COMMERCIALBAITFISH HARVESTS. Jeffrey B. Eddy A thesis submitted to the Faculty of Graduate Studies of the University of Manitoba in partial fulfillment of the requirements for the degree of Master of Namal Resources Management. Natural Resources Institute University of Manitoba Winnipeg, Manitoba March 2000 National Library Bibliothèque nationale 1*1 of Canada du Canada Acquisitions and Acquisitions et Bibliographie Services services bibliographiques 395 Wellington Street 395. rue Weilingîm OnawaON KlAON4 CMawaON K1AON4 Canada cana& The author has granted a non- L'auteur a accordé une licence non exclusive Licence ailowing the exclusive permettant à la National Library of Canada to Bibliothèque nationale du Canada de reproduce, loan, dismbute or seii reproduire, prêter, distribuer ou copies of this thesis in microfom, vendre des copies de cette thèse sous paper or electronic formats. la forme de microfiche/tilm, de reproduction sur papier ou sur format électronique. The author retains ownership of the L'auteur conserve la propriété du copyright in this thesis. Neither the droit d'auteur qui protège cette thèse. thesis.nor substantial extracts fkom it Ni la thèse ni des extraits substantiels may be printed or otherwise de celle-ci ne doivent être imprimés reproduced without the author's ou autrement reproduits sans son permission. autorisation. THE UNIVERSITY OF MANITOBA FACWLTY OF GRADUATE STUDIES **te* COPYRIGHT PERMISSION PAGE Estimation of the Abundance, Biomass and Growth of a Northwestern Ontario Population of Finescale Dace (Phoxinus neogaeus), with Comments on the Sustainability of Local Commercial Baiffish Harvests Jeffrey B. Eddy A ThesidPracticum submitted to the Faculty of Graduate Studies of The University of Manitoba in partial fuifiiiment of the requirements of the degree of Master of Natural Resources Management JEFFREY B. EDDY O 2000 Permission has been grrnted to the Librrry of The University of Manitoba to lend or seU copies of this thesis/prrcticum, to the National Library of Canada to microfilm this thesis/practicum and to lend or sell copies of the fdm, and to Dissertations Abstracts international to pubbsh an rbstract of this thesidprrcticum. The author reserves other pubücation rights, and neithet this thesis/practicum nor extensive extracts from it mry be printed or otherwise reproduced without the author's wrinen permission. The abundance, biomass and growth of the aduit fish in a population of finescale dace (Phoxinus neogueus) were estimated using both multiple mark-recapture and removal methods in Lake 115, a small(6.5 ha) bog lake in the Expenmental Lakes Area, northwestern Ontario. Mark-recapture data were analyzed by Jolly-Seber death-only and open models. Data From removal methods were analyzed by Leslie, Delury, and Moran and Zippin's rnethods. The best estirnates of the population size were 27 244 fish for the death-only model, 22 745 fish for the open-model, 18 468 fish for the Leslie method, 20 135 for the Delwy method, and 19 330 for the Moran and Zippin's method. Biomass estimates were based on the death-oniy abundance estimate. There was an estimated biomass of 52.0 kg for the entire lake, which translates to 8.0 kg ha*' for fish in the population over the age of 1+. The majority of Lake 1 15's fmescale dace biomass was calculated to be made up of fish in the 52 to 68mm size class, which is probably composed prirnarily of age 2+ fish. Growth estimated for finescale dace between May 24" and September 14~1999 uidicated that growth rates varied among age classes, with older fish growing less over the course of the season than younger fish. Information collected fiom northwestem Ontario commercial baitfish harvesters suggested that baitfish production in lakes can fluctue and is based on a wide range of factors, including lake size and depth, physical and chemical characteristics, species assemblages, and weather pattern. Commercial harvesters indicated that they used specific strategies to prevent overharvesting in their baitfish lakes. The use of baitfish blocks, which grants exclusive rights to fish in individual Mes, encourages sustainabte resource use by creating a limited-access fishery. More information on the biology, population dynamics and productivity of baitfish species couid help increase the sustainability of this industry, while ensuring that any regdations that are put into place, such as those restricting baitfish harvest in waters containhg garnefish, are based on actual biological responses. I would like to thank Dr. Drew Bodaly for his guidance and generous support throughout this project. Special thanks to Dr. Ken Mills for help al1 of his help during editing, data analysis, and interpretation. Thanks also to Prof. Thomas Henley and Dr. Bill Frantin for their comments and advice. I would also like to thank the baitfish harvesters who took the time to answer my questions and provided me with insight into the northwestem Ontario commercial baitfish industry. Specificdly, 1 would Iike to thank Mr. Ken Bernier for his assistance in formulating my questionnaire, and giving me the opportunity to meet with BA0 members, and Mr. Wayne Clark for his generous time and valuable information. Thanks to Mr. Rob Rabasco for al1 of his help during the fieldwork. Most importantly 1 wish to thank Sara Melnyk for her editoriai and technical assistance, support, and constant encouragement. This research was hdedby the Experimental Lakes Area Graduate Fellowship. TABLE OF CONTENTS A bs trac t Acknowledgments ............................................................................................................ .i. Table of Contents ............................................................................................................ 11 List of Figures ................................................................................................................ iv List of Tables ................................................................................................................. iv Glossary of Terms ........................................................................................................... v CHAPTER 1: ~NTRODUC~ION................... .... ..............................................................1 1.1. Context .................................................................................................................... 1 1.2. Relevance of Research to Society ........................................................................... 1 1.3. Research Opponinity .............................................................................................. 3 1.4. Research Objectives ............................................................................................... 4 1.5. Methods ................................................................................................................... 4 CHAPTER 2: LITERATUREREVIEW .............................................................................. 8 2.1 . Scope ....................................................................................................................... 8 Finescale Dace 2.2. Ta.. onomy and Distribution .................................................................................... 8 2.3. Breeding ................................................................................................................ 10 2-40 DIET~~~~~~~~~~~~~~~~~~~~~~~~~~~-~~~--~~~~----*-*- 11 Estimating Fish Populations 2 .5 . Available Methods ......................~.........~~......................~~......~..~...~........................12 2.6. Catch per Unit Effort ............................................................................................ 12 2.7. Direct Enumeration ............................................................................................... 14 2.8. MARK-RECAPTURE............................................................................................ 15 2.9. Methods of Marking Fish ..................................................................................... 17 2.1 0 . Capture Techniques ............................................................................................. 19 2.1 1 . Biomass of Cyprinid Populations in SmalI Lakes ............................................. 23 The Baitfish Industry 2.12. Economics ............................................................................................................ 25 2 .13 . Regulations ......................................................................................................... 26 2.14. Commercial Practices .......................................................................................... 27 2.15. Ecological Impacts ............................................................................................... 30 CHAPTER 3: METHODS................................................................................................. 33 ? -l 3.1 . Location and Species ........................................................................................... 33 3- 3 .2 . Multiple Mark-Recapture ..................................................................................... 22 9 3 ... Statistical Anaiysis of Multiple Mark-Recapture Data ........................................ 36 3.4. Catch per Unit Effort ..........................................................................................
Load more

Recommended publications
  • Fishes and Decapod Crustaceans of the Great Lakes Basin
    See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/267883780 Ichthyofauna of the Great Lakes Basin Conference Paper · September 2011 CITATIONS READS 0 26 5 authors, including: Brian M. Roth Nicholas Mandrak Michigan State University University of Toronto 33 PUBLICATIONS 389 CITATIONS 173 PUBLICATIONS 2,427 CITATIONS SEE PROFILE SEE PROFILE Greg G Sass Thomas Hrabik Wisconsin Department of Natural Resources University of Minnesota Duluth 95 PUBLICATIONS 796 CITATIONS 68 PUBLICATIONS 1,510 CITATIONS SEE PROFILE SEE PROFILE Some of the authors of this publication are also working on these related projects: Ecological Grass Carp Risk Assessment for the Great Lakes Basin View project All content following this page was uploaded by Greg G Sass on 14 September 2016. The user has requested enhancement of the downloaded file. All in-text references underlined in blue are added to the original document and are linked to publications on ResearchGate, letting you access and read them immediately. Fishes and Decapod Crustaceans of the Great Lakes Basin Brian M. Roth, Nicholas E. Mandrak, Th omas R. Hrabik, Greg G. Sass, and Jody Peters The primary goal of the first edition of this chapter (Coon 1994) was to provide an overview of the Laurentian Great Lakes fish community and its origins. For this edition, we have taken a slightly diff erent approach. Although we have updated the checklist of fishes in each of the Great Lakes and their watersheds, we also include a checklist of decapod crustaceans. Our decision to include decapods derives from the lack of such a list for the Great Lakes in the literature and the importance of decapods (in particular, crayfishes) for the ecology and biodiversity of streams and lakes in the Great Lakes region (Lodge et al.
    [Show full text]
  • Minnesota Fish Taxonomic Key 2017 Edition
    Minnesota Fish Taxonomic Key 2017 Edition Pictures from – NANFA (2017) Warren Lamb Aquatic Biology Program Bemidji State University Bemidji, MN 56601 Introduction Minnesota’s landscape is maze of lakes and river that are home to a recorded total of 163 species of fish. This document is a complete and current dichotomous taxonomic key of the Minnesota fishes. This key was based on the 1972 “Northern Fishes” key (Eddy 1972), and updated based on Dr. Jay Hatch’s article “Minnesota Fishes: Just How Many Are There?” (Hatch 2016). Any new species or family additions were also referenced to the 7th edition of the American Fisheries society “Names of North American Fishes” (Page et al. 2013) to assess whether a fish species is currently recognized by the scientific community. Identifying characteristics for new additions were compared to those found in Page and Burr (2011). In total five species and one family have been added to the taxonomic key, while three have been removed since the last publication. Species pictures within the keys have been provide from either Bemidji State University Ichthyology Students or North American Native Fish Association (NANFA). My hope is that this document will offer an accurate and simple key so anyone can identify the fish they may encounter in Minnesota. Warren Lamb – 2017 Pictures from – NANFA (2017) References Eddy, S. and J. C. Underhill. 1974. Northern Fishes. University of Minnesota Press, Minneapolis. 414 pp. Hatch, J. 2015. Minnesota fishes: just how many are there anyway? American Currents 40:10-21. Page, L. M. and B. M. Burr. 2011. Peterson Field Guide to Freshwater Fishes of North America North of Mexico.
    [Show full text]
  • Threatened Fishes Survey
    University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Nebraska Game and Parks Commission -- White Papers, Conference Presentations, & Nebraska Game and Parks Commission Manuscripts January 1975 THREATENED FISHES SURVEY Steve Schainost Follow this and additional works at: https://digitalcommons.unl.edu/nebgamewhitepap Part of the Environmental Sciences Commons Schainost, Steve, "THREATENED FISHES SURVEY" (1975). Nebraska Game and Parks Commission -- White Papers, Conference Presentations, & Manuscripts. 16. https://digitalcommons.unl.edu/nebgamewhitepap/16 This Article is brought to you for free and open access by the Nebraska Game and Parks Commission at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Nebraska Game and Parks Commission -- White Papers, Conference Presentations, & Manuscripts by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. THREATENED FISHES SURVEY By Steve Schainost NEBRASKA GAME AND PARKS COMMISSION Fishery Division March - 1975 Project Name: Threatened Fishes Survey Project Leader: Steve Schainost Project Locati on: _S~t..;..;a..;..;t...;;.e..:.;.w_i d_e'-- _ INTRODUCTION: The advance of civilization frequently results in activities which cause changes in the native wildlife species. The economy of the state of Nebraska has submitted its streams to the effects of intensive agricultural and irri­ gation developments, stream channelization, and dams. The responses of different fish species to these different activities vary but they always occur and are usually unnoticed unless of large magnitude. Relatively little has been done with regard to noting the responses of Nebraskaos stream fishes to the activities of man. Previous workers have frequently worked within a basin rather than statewide. Jordan and Meek (1885), Jordan and Everman (1896), and Everman and Cox (1896) primarily collected fishes in the Missouri River basin.
    [Show full text]
  • Identification of Larval Fishes of the Great Lakes Basin
    IDENTIFICATION OF LARVAL FISHES OF THE GREAT LAKES BASIN WITH EMPHASIS ON THE LAKE MICHIGAN DRAINAGE’ Edited by NANCY A. AUER2 Great Lakes Research Division University of Michigan Ann Arbor, Michigan Citation guide for volume and individual accounts: AUER, N. A. (ed.). 1982. Identification of larval fishes of the Great Lakes basin with emphasis on the Lake Michigan drainage. Great Lakes Fishery Commission, Ann Arbor, MI 48105. Special Pub. 82-3:744 pp. FUIMAN, L. A. 1982. Family Petromyzontidae, lampreys. pp. 23-37. In N. A. Auer (ed.) . 1982. Identification of larval fishes of the Great Lakes basin with emphasis on the Lake Michigan drainage. Great Lakes Fishery Commission, Ann Arbor, Ml 48105. Special Pub. 82-3:744 pp. Sponsored by: Great Lakes Fishery Commission 1451 Green Road Ann Arbor, Michigan 48105 Consumers Power Company Environmental Department Jackson, Michigan 49201 1 Contribution Number 355 of the Great Lakes Research Division, the University of Michigan. 2 Current address: Department of Biological Sciences, Michigan Technological University, Houghton, Ml 48831 Questions and comments concerning this volume may be addressed to the editor at the above address. FOREWORD The results of three major initiatives are coming together to give fishery scientists, managers, and administrators a better understanding of the spawning and early life history processes of Great Lakes fishes: 1. synthesis of information via symposia, 2. a text to provide greater ability to identify fish eggs and larvae, and 3. an atlas of fish spawning and nursery areas. 1. The Symposia The 1955 Convention on Great Lakes Fisheries charges, in part, the Great Lakes Fishery Commission to determine what measures are best adapted to make possible the maximum:‘; sustained productivity of any stock of fish in the convention area which is of common concern to the fisheries of Canada and the United States.
    [Show full text]
  • Status of Northern Pearl Dace and Chrosomid
    STATUS OF NORTHERN PEARL DACE AND CHROSOMID DACE IN PRAIRIE STREAMS OF MONTANA by Allison Louise Stringer A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Fish and Wildlife Management MONTANA STATE UNIVERSITY Bozeman, Montana May 2018 ©COPYRIGHT by Allison Louise Stringer 2018 All Rights Reserved ii ACKNOWLEDGMENTS My thesis was completed thanks to my funding sources: the Bureau of Land Management, the National Fish and Wildlife Foundation, and NorthWestern Energy. Their generosity has advanced our knowledge of some of our least studied native fish species and has provided critical information to managers. I thank my committee members Drs. Robert G. Bramblett, Alexander V. Zale, and Andrea R. Litt for their unwavering support and patient guidance. Many thanks to my hardworking technicians and volunteers: Morgan Kauth, Jeremy Brooks, Jonathan Hashisaki, Shannon Blackburn, Katy Bonaro, and Ashley Berninghaus. I could not have survived the mud bogs and rattlesnakes without you! I extend my gratitude to the Fort Peck Office of Environmental Protection and the Blackfeet Environmental Office, both of which provided critical logistical support and historical information. Thanks to Andrew Gilham of the U.S. Fish and Wildlife Service, who provided valuable insight into the St. Mary and upper Milk River drainages. I also thank Jim Johnson of Confluence, Inc., who graciously provided guidance and spatial data. Thank you to Steve Dalbey, Cody Nagel, Zach Shattuck, Mike Ruggles, and other hardworking employees of Montana Fish, Wildlife and Parks for being champions of native fish, and for giving me hope that my thesis will do more than collect dust on a shelf.
    [Show full text]
  • Wildlife Action Plan Species Profile
    Appendix A: Fish Northern Redbelly Dace Chrosomus eos Federal Listing State Listing SC Global Rank State Rank S3 Regional Status Photo by NHFG Justification (Reason for Concern in NH) Northern redbelly dace are vulnerable to habitat alterations that reduce summer base flows and riparian cover. Populations upstream of dams are also vulnerable to artificial water level fluctuations, especially during spawning. The extent of their distribution in New Hampshire is not well understood. Although aquatic habitats in northern New Hampshire are under less pressure from development than those of southern New Hampshire, there may be certain regions that are important for the persistence of the species, which has somewhat limited dispersal abilities. The biggest threat to northern redbelly dace populations may be the introduction of large predatory fish species, including bass, pike, and sunfish. The brightly colored breeding males, in particular, are not well adapted to avoiding larger fish predators. As a result of the widespread introductions of littoral predators, native minnow communities have become rare in lakes and ponds throughout the northeast outside of northern Maine (Whittier et al. 1997). Distribution The northern redbelly dace has a northern distribution in North America, inhabiting most of Canada, with isolated populations in the Missouri and upper Mississippi River watersheds, northern New York, Pennsylvania, Massachusetts, Vermont, New Hampshire, and Maine (Scott and Crossman 1973). In New Hampshire, northern redbelly dace populations occur north of the White Mountains, in the Androscoggin and upper Connecticut River watersheds, with isolated populations as far south as the Sugar and Cold River watersheds. Habitat The northern redbelly dace inhabits acidic lakes, ponds, and backwater streams in areas with minimal water velocity.
    [Show full text]
  • Finescale Dace
    Finescale Dace - Phoxinus neogaeus Abundance: Extremely rare Status: NSS2 (Ba) NatureServe: G5 S2 Population Status: Imperiled because of greatly restricted distribution. Found in Niobrara River and some locations in the Belle Fourche watershed. Wyoming populations are isolated from the species' core range in North America. Limiting Factor: Habitat: severe due to limited habitat in Wyoming. Comment: NSS Ranks are reviewed and revised with each SWAP revision. No changes were made for this species in this revision. Introduction Finescale dace distribution extends throughout Canada and from Minnesota to Maine in the United States. Disjunct populations also exist in areas of South Dakota, Nebraska, and Wyoming. In Wyoming they are found in the Redwater and Niobrara River drainages. Recent surveys found finescale dace throughout the mainstem Niobrara River and in Hemler Reservoir in the Redwater drainage (McGree et al. 2010; Moan et al. 2010). Throughout their distribution, finescale dace freely hybridize with northern redbelly dace. The population in the Niobrara River headwaters of Wyoming is believed to be the only genetically pure population at the southern extent of their distribution (Isaak et al. 2003). Finescale dace reach maturity by age two and generally spawn in April or May depending on water temperature. Spawning occurs over silt substrate, usually in depressions under logs or other cover. No nesting occurs and no parental care is given. Female fecundity can range from 400 to 3,000 eggs depending on body size (Isaak et al. 2003). Finescale dace have flexible feeding habits, eating a variety of zooplankton, aquatic insects, and plant material (Litvak and Hansell 1990).
    [Show full text]
  • Threatened Freshwater Fishes of the United States
    Threatened Freshwater Fishes of the United States ROBERT RUSH MILLER 1 Museum o] Zoology, The University o/ Michigan Ann Arbor, Michigan 48104 ABSTRACT Threatened, native freshwater fishes are listed for 49 of the 50 U.S. States, the first such compilation. Over 300 kinds are included in a formal classification, cross-indexedto states (Table 1), followed by statelists and the statusof each fish, whether rare, endangered,depleted, or undetermined. The concern for native fishes and the important factors responsible for threats to their existence are briefly outlined. Although the lists vary from those based on extensive recent state surveys to others in which current information is sparse, publication is expected to enhance the chances for survival through protective legislation (already enacted by a number of states) and stronger concern for such natural resources. INTRODUCTION committeesduring the period that the infor- It is only within the past decade,princi- mation presentedbelow was being prepared. pally since 1963, that seriousthreats to the Since the late 1960's, particularly in the survivalof many of our uniquenative fishes West but also. in the East, states have been have becomewidely recognized.Committees enactinglegislation and enforcingprotection concernedwith vanishingU.S. wildlife have of endangeredspecies and subspeciesas well been established within scientific societies as as maintainingnatural habitatsand creating well as by the statesand the federal govern- refugia for some of the more critically ment. On a globalbasis, action has been taken threatenedfishes (see, for example,Miller and by the SurvivalService Commission of the In- Pister, 1971). This type of effort must be ternational Union for Conservation of Nature extendedinto every state.
    [Show full text]
  • Ranking Local Species of Conservation Concern in the Credit River Watershed
    Photo: Logperch, by Jon Clayton Technical Report: Ranking local species of conservation concern in the Credit River Watershed FINAL April 5, 2020 ii ACKNOWLEDGEMENTS This report is the product of many years of work with contributions from many people at Credit Valley Conservation, as well as input from experts at several different organizations. We greatly appreciate the efforts and insight of all who participated in the project over time. Credit Valley Conservation (CVC) Team Laura Timms, project lead Scott Sampson Aviva Patel Phil Bird Jacquelyn Kiers Jon Clayton Bob Morris Kata Bavrlic Dawn Renfrew Christina Kovacs Yvette Roy Joe Pearson Janel Sauder External Reviewers and Input Mike Burrell, Natural Heritage Information Centre (NHIC) Don Faber-Langendoen, NatureServe Noah Gaetz, Toronto and Region Conservation Authority (TRCA) Scott Gibson, Ministry of Natural Resources and Forestry Colin Jones, NHIC Sue Hayes, TRCA Don Jackson, University of Toronto Scott Jarvie, TRCA Dan Kraus, Nature Conservancy of Canada David Lawrie, TRCA Nick Mandrak, University of Toronto Gavin Miller, TRCA Jan Moryk, TRCA Mike Oldham, NHIC Paul Prior, TRCA Jonathan Ruppert, TRCA Namrata Shrestha, TRCA Don Sutherland, NHIC Angela Wallace, TRCA Bruce Young, Nature Serve To be cited as: Credit Valley Conservation. 2020. Technical Report: Ranking local species of conservation concern in the Credit River Watershed. 45 pp. iii SUMMARY Many of the animals, plants, and other organisms that make up global biodiversity are experiencing population declines due to habitat loss, climate change, and other threats. Global, national, and subnational conservation status assessments (i.e. global G-ranks, national N-ranks, subnational S-ranks) are useful for identifying species whose populations are at a high risk of extinction across those geographic scales.
    [Show full text]
  • Appendix A: Fish
    Appendix A: Fish Finescale Dace Chrosomus neogaeus Federal Listing State Listing SC Global Rank State Rank S3 Regional Status Photo by John Lyons Justification (Reason for Concern in NH) Finescale dace are vulnerable to habitat alterations that reduce summer base flows and riparian cover. Populations upstream of dams are also vulnerable to artificial water level fluctuations, especially during the spawning season. The extent of their distribution in New Hampshire is not well understood. Although aquatic habitats in northern New Hampshire are under less pressure from development than those of southern New Hampshire, there may be certain regions that are important for the persistence of the species, which has somewhat limited dispersal abilities. Finescale dace populations are vulnerable to introductions of large predatory fish species, including bass, pike, and sunfish. The brightly colored breeding males, in particular, are not well adapted to avoiding predatory fish (Stasiak and Cunningham 2006). As a species adapted to cold climates, the range of the finescale dace may be reduced in the future due to the effects of climate change. Distribution The finescale dace has a northern distribution in North America, inhabiting most of Canada, with isolated populations in the upper Mississippi River watershed, northern New York, Vermont, New Hampshire, and Maine. In New Hampshire, finescale dace populations occur north of the White Mountains, in the Androscoggin and Connecticut River watersheds (Scarola 1987). Habitat Finescale dace prefer lower gradient, cool headwater streams and small ponds with sluggish flow and ample cover from over hanging shrubs or aquatic vegetation (Scott and Crossman 1974). They tend to thrive in areas with a history of beaver activity.
    [Show full text]
  • Finescale Dace (Phoxinus Neogaeus): a Technical Conservation Assessment
    Finescale Dace (Phoxinus neogaeus): A Technical Conservation Assessment Prepared for the USDA Forest Service, Rocky Mountain Region, Species Conservation Project March 7, 2006 Richard Stasiak, Ph.D. and George R. Cunningham Department of Biology University of Nebraska at Omaha Omaha, NE 68182-0040 Peer Review Administered by American Fisheries Society Stasiak, R. and G.R. Cunningham (2006, March 7). Finescale Dace (Phoxinus neogaeus): a technical conservation assessment. [Online]. USDA Forest Service, Rocky Mountain Region. Available: http://www.fs.fed.us/r2/ projects/scp/assessments/finescaledace.pdf [date of access]. ACKNOWLEDGMENTS We would like to offer thanks to David B. McDonald at the University of Wyoming for providing the demographic matrix analysis that appears in the Appendix for this species. Without this help, we would still be crunching these numbers. We would also like to acknowledge Gary Patton and Richard Vacirca of the USDA Forest Service for all their help in bringing this report to completion. The suggestions and comments provided by anonymous reviewers are much appreciated. AUTHORS’ BIOGRAPHIES Richard H. Stasiak is Professor of Biology at the University of Nebraska at Omaha, where he has spent the past 35 years teaching courses in ichthyology and aquatic ecology. His research interests center around the ecology of fishes found in the Midwest. He has a particular interest in the biology of the minnows called “daces”, which he has been studying for over 40 years. George R. Cunningham received his Master of Arts Degree from the University of Nebraska at Omaha in 1995. He teaches courses in Conservation Biology at UNO and acts as a private environmental consultant.
    [Show full text]
  • The Canadian Field-Naturalist
    The Canadian Field-Naturalist First records of Finescale Dace (Chrosomus neogaeus) in Newfoundland and Labrador, Canada Donald G. Keefe1, *, Robert C. Perry1, and Gregory R. McCracken2 1Department of Fisheries and Land Resources, Forestry and Wildlife Research Division, P.O. Box 2007, Corner Brook, Newfoundland and Labrador A2H 7S1 Canada 2Department of Biology, Dalhousie University, 1355 Oxford Street, Halifax, Nova Scotia B3H 4R2 Canada *Corresponding author: [email protected] Keefe, D.G., R.C. Perry, and G.R. McCracken. 2019. First records of Finescale Dace (Chrosomus neogaeus) in Newfoundland and Labrador, Canada. Canadian Field-Naturalist 133(2): 105–112. http://doi.org/10.22621/cfn.v133i2.1991 Abstract The island of Newfoundland has no official record of cyprinid fishes. Here, we report the discovery of a minnow, Finescale Dace (Chromous neogaeus) from four ponds located in a first order tributary of the Exploits River, in central Newfoundland. This finding represents the first record of the species in the province. The location where the species was found is in a local- ized, central portion of insular Newfoundland, therefore, the most parsimonious explanation for this new record is that it was an illegal, intentional introduction. Such introductions in other provinces have occurred by anglers who felt it would serve as a forage fish for other species. The consequences of this introduction to native species are unknown; however, the dace’s local abundance, foraging behaviour, and reproductive capacity are discussed in terms of the interspecific competi- tion with native species. Key words: Finescale Dace; Chrosomus; Goldfish; intentional introduction; interspecific competition; exotic species Introduction town of Heart’s Delight (47.78691°N, 53.46752°W), The province of Newfoundland and Labrador has and Janes Pond (47.16617°N, 55.16229°W) located in a very low rate of introduction for exotic fish (van Zyll the town of Marystown.
    [Show full text]