Triploidy Induction in Arctic Char Salvelinus Alpinus Using Heat Shocking and Pressure Shocking Techniques
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Dolly Varden (Salvelinus Malma) Robert H. Armstrong and Marge
Dolly Varden (Salvelinus malma) Robert H. Armstrong and Marge Hermans The Dolly Varden is one of the most beautiful fishes in Resident Dolly Varden, which live their entire lives Southeastern Alaska (Southeast). This species is also in streams or small lakes and ponds, are small. They highly prized as a sport fish and for delicious eating. seldom grow longer than 10 in. (26 cm). Those that The sea-run Dolly Varden has an overall silvery inhabit larger lakes often grow to 12 in. (30 cm) or appearance with olive-green to brown on its dorsal more, but they still generally weigh less than 1 lb (0.5 surface and numerous red to orange spots on its sides kg). These freshwater fish seldom live more than 8 to (Fig 1). At maturity the lower body of the breeding 10 years. Exceptions are Dolly Varden weighing up to male turns brilliant red. 9 lb (4 kg) in the few Southeast lakes that contain kokanee (small landlocked sockeye salmon [Onchorhynchus nerka]). These larger fish feed on kokanee and tend to live longer, up to 19 years (Armstrong 1991). Sea-run Dolly Varden, fish that spend part of their lives in salt water, usually grow to 15-22 in. (38-56 cm) long and weigh 1-3 lb (0.5-1.4 kg). Occasionally, large fish weighing more than 10 lb (5 kg) are hauled from large mainland rivers such as the Taku River near Juneau. Research has shown that sea-run Dolly Varden are not nearly as abundant in Southeast as most people believe. -
The Arctic Char (Salvelinus Alpinus) “Complex” in North America Revisited
The Arctic char (Salvelinus alpinus) “complex” in North America revisited Eric B. Taylor Hydrobiologia The International Journal of Aquatic Sciences ISSN 0018-8158 Hydrobiologia DOI 10.1007/s10750-015-2613-6 1 23 Author's personal copy Hydrobiologia DOI 10.1007/s10750-015-2613-6 CHARR II Review Paper The Arctic char (Salvelinus alpinus) ‘‘complex’’ in North America revisited Eric B. Taylor Received: 1 July 2015 / Revised: 16 November 2015 / Accepted: 5 December 2015 Ó Springer International Publishing Switzerland 2015 Abstract The Arctic char (Salvelinus alpinus) law. This research has significantly revised what species ‘‘complex’’ has fascinated biologists for constitutes the S. alpinus species ‘‘complex’’, provided decades particularly with respect to how many species insights into the ecology and genetics of co-existence, there are and their geographic distributions. I review and promoted conservation assessment that better recent research on the species complex, focussing on represents biodiversity within Salvelinus. A geograph- biodiversity within northwestern North America, ically and genetically comprehensive analysis of which indicates (i) what was once considered a single relationships among putative taxa of Pan-Pacific taxon consists of three taxa: S. alpinus (Arctic char), S. Salvelinus is still required to better quantify the malma (Dolly Varden), and S. confluentus (bull trout), number of taxa and their origins. (ii) morphological and genetic data indicate that S. alpinus and S. malma, and S. malma and S. confluentus Keywords Dolly Varden Á Arctic char Á Bull trout Á exist as distinct biological species in sympatry, (iii) Geographic distribution Á Taxonomy Á Conservation sympatric forms of S. alpinus exist in Alaska as in other areas of the Holarctic, (iv) Dolly Varden comprises two well-differentiated subspecies, S. -
Westslope Cutthroat Trout
This file was created by scanning the printed publication. Errors identified by the software have been corrected; Chapter 1 however, some errors may remain. Westslope Cutthroat Trout John D. IVIclntyre and Bruce E. Rieman, USDA Forest Service, Intermountain Research Station, 316 E. iViyrtle Street, Boise, Idaho 83702 Introduction Westslope cutthroat trout begin to mature at age 3 but usually spawn first at age 4 or 5 (table 2). Sexu The westslope cutthroat trout inhabits streams on ally maturing adfluvial fish move into the vicinity of both sides of the Continental Divide. On the east side tributaries in fall and winter where they remain un of the divide, they are distributed mostly in Mon til they begin to migrate upstream in the spring tana but also occur in some headwaters in Wyoming (Liknes 1984). They spawn from March to July at and southern Alberta (Behnke 1992). They are in the water temperatures near 10°C (Roscoe 1974; Liknes Missouri Basin downstream to about 60 km below 1984; Shepard et al. 1984). A population of adult fish Great Falls and in the headwaters of the Judith, Milk, in the St. Joe River, Idaho, included 1.6 females for and Marias rivers. On the west side of the Continen each male (Thurow and Bjornn 1978). Average length tal Divide the subspecies occurs in the upper was 334 mm for females and 366 mm for males. A Kootenai River; the Clark Fork drainage in Montana similar population in Big Creek, Montana, included and Idaho downstream to the falls on the Fend Oreille 4.1 females for each male (Huston et al. -
COSEWIC Assessment and Status Report on the Bull Trout Salvelinus Confluentus in Canada
COSEWIC Assessment and Status Report on the Bull Trout Salvelinus confluentus South Coast British Columbia populations Western Arctic populations Upper Yukon Watershed populations Saskatchewan - Nelson Rivers populations Pacific populations in Canada South Coast British Columbia populations - SPECIAL CONCERN Western Arctic populations - SPECIAL CONCERN Upper Yukon Watershed populations - DATA DEFICIENT Saskatchewan - Nelson Rivers populations - THREATENED Pacific populations - NOT AT RISK 2012 COSEWIC status reports are working documents used in assigning the status of wildlife species suspected of being at risk. This report may be cited as follows: COSEWIC. 2012. COSEWIC assessment and status report on the Bull Trout Salvelinus confluentus in Canada. Committee on the Status of Endangered Wildlife in Canada. Ottawa. iv + 103 pp. (www.registrelep-sararegistry.gc.ca/default_e.cfm). Production note: COSEWIC would like to acknowledge Jennifer Gow for writing the status report on the Bull Trout, Salvelinus confluentus, in Canada, prepared under contract with Environment Canada. This report was overseen and edited by Dr. John Post, Co-chair of the COSEWIC Freshwater Fishes Specialist Subcommittee. For additional copies contact: COSEWIC Secretariat c/o Canadian Wildlife Service Environment Canada Ottawa, ON K1A 0H3 Tel.: 819-953-3215 Fax: 819-994-3684 E-mail: COSEWIC/[email protected] http://www.cosewic.gc.ca Également disponible en français sous le titre Ếvaluation et Rapport de situation du COSEPAC sur L’omble à tête plate (Salvelinus confluentus) au Canada. Cover illustration/photo: Bull Trout — Picture courtesy of J.D. McPhail and D.L. McPhail. Her Majesty the Queen in Right of Canada, 2013. Catalogue No. CW69-14/659-2013E-PDF ISBN 978-1-100-22290-5 Recycled paper COSEWIC Assessment Summary Assessment Summary – November 2012 Common name Bull Trout - South Coast British Columbia populations Scientific name Salvelinus confluentus Status Special Concern Reason for designation This freshwater fish exists in five large river systems in this area. -
Charrs of the Genus Salvelinus (Salmonidae): Hybridization, Phylogeny and Evolution
bioRxiv preprint doi: https://doi.org/10.1101/817775; this version posted October 30, 2019. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. 1 Charrs of the genus Salvelinus (Salmonidae): hybridization, phylogeny and evolution ALEXANDER G. OSINOV1, ALEXANDER A.VOLKOV2, NIKOLAI S. MUGUE2, 1Biological Faculty, Lomonosov Moscow State University, Moscow, 119991 Russia 2Russian Federal Research Institute of Fisheries and Oceanography (VNIRO), Moscow, 107140 Russia Running heads: PHYLOGENY AND HYBRIDIZATION IN SALVELINUS Corresponding author. E-mail: [email protected] bioRxiv preprint doi: https://doi.org/10.1101/817775; this version posted October 30, 2019. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. 2 ABSTRACT Evolutionary history, systematics and taxonomy of charrs of the genus Salvelinus and especially of the representatives of the S. alpinus – S. malma species complex remain confused that is connected with a substantial ecological and morphological flexibility of this group and with supposed ancient hybridization between some taxa. For the analysis of phylogenetic relationships and introgressive hybridization between the species of the genus Salvelinus including three endemic species from Lake El’gygytgyn and all main representatives of the S. alpinus – S. malma species complex, nucleotide sequences of mtDNA control region (960 bp) and two nuclear genes (ITS1 (581 bp) and RAG1 (899 bp)) were analyzed. The differences in the topologies of individual gene trees, among others reasons, were connected with incomplete lineage sorting and historical introgressive hybridization between certain taxa. -
Westslope Cutthroat Trout Oncorhynchus Clarkii Lewisi
COSEWIC Assessment and Status Report on the westslope cutthroat trout Oncorhynchus clarkii lewisi British Columbia population Alberta population in Canada British Columbia population – SPECIAL CONCERN Alberta population – THREATENED 2006 COSEWIC COSEPAC COMMITTEE ON THE STATUS OF COMITÉ SUR LA SITUATION ENDANGERED WILDLIFE DES ESPÈCES EN PÉRIL IN CANADA AU CANADA COSEWIC status reports are working documents used in assigning the status of wildlife species suspected of being at risk. This report may be cited as follows: COSEWIC 2006. COSEWIC assessment and update status report on the westslope cutthroat trout Oncorhynchus clarkii lewisi (British Columbia population and Alberta population) in Canada. Committee on the Status of Endangered Wildlife in Canada. Ottawa. vii + 67 pp. (www.sararegistry.gc.ca/status/status_e.cfm). Production note: COSEWIC would like to acknowledge Allan B. Costello and Emily Rubidge for writing the status report on the westslope cutthroat trout (Oncorhynchus clarkii lewisi) (British Columbia population and Alberta population) in Canada, prepared under contract with Environment Canada, overseen and edited by Dr. Robert Campbell, Co-chair, Freshwater Fishes Species Specialist Subcommittee. The status report to support the May 2005 COSEWIC assessments of the westslope cutthroat trout (Oncorhynchus clarkii lewisi) (Alberta population and British Columbia population) was not made available following the 2005 assessment. In November 2006, COSEWIC reassessed the westslope cutthroat trout (Oncorhynchus clarkii lewisi) -
Arctic Char in Northern Alaska
1 Dolly Varden & Arctic Char in Northern Alaska Dolly Varden & Arctic Char Distribution for Alaska and Chukotsk Peninsula 2 What is a char? Char are members of the family Salmonidae and the genus Salvelinus. The family Salmonidae includes all the salmonid fishes: Genus: Oncorhynchus rainbow trout, Pacific salmon, cutthroat trout Genus: Coregonus whitefish Genus: Thymallus grayling Genus: Salmo brown trout, Atlantic salmon Genus: Salvelinus Dolly Varden, Arctic char, lake trout, bull trout, brook trout 3 In Alaska, species of char include: Dolly Varden Salvelinus malma Arctic Char Salvelinus alpinus Lake Trout Salvelinus namaycush Bull Trout Salvelinus confluentus Brook Trout Salvelinus fontinalis (introduced in Southeast Alaska) Illustrations by Joseph R. Tomelleri 4 How is a char different from any other salmonid? Char are distinguished from other salmonid fishes by having light spots on a dark background and by the lack of teeth on the shaft of the vomer (upper palate). Chars Light spots/dark background Other Salmonids Dark spots/light background 5 What is in a fish’s name? Within the scientific community, the first person to formally describe a fish earns the right to name the fish. No one has ever seen a fish like you before! You are gray & purple & have large lips. You have 3 rays in your dorsal fin and you lack anal & ventral fins I will name you, Finus missingus. That fish and others like it from the same location become the “type specimen” to which scientists compare similar fish from other locations to determine if they are the same species or a different species. On my last expedition, I found a fish that was gray & purple, had large lips, 3 dorsal fin rays, and lacked anal & ventral fins. -
Call Numbers for Salmonidae
CALL NUMBERS FOR SALMONIDAE Use this chart for the special breakdown of QL638.S2. The names in boldface represent authorized Library of Congress subject headings. Works on ciscoes, salmon, trout, and whitefish using these common names but covering species within one genus will be classed under the specific genus. Made-up example: Title: Guide to trouts. Subjects: Cutthroat (Oncorhynchus clarkii), rainbow trout (O. mykiss), and Apache trout (O. apache). Class under: Oncorhynchus (.S25) Works on ciscoes, salmon, trout, and whitefish covering species which belong to more than one genus but which fall collectively under one of these common names will be classed under the Cutter for the common name. Made-up example: Title: Guide to trouts. Subjects: Cutthroat trout (Oncorhynchus clarkii), brown trout (Salmo trutta), and lake trout (Salvelinus namaycush). Class under: “trout” (.S216) The fishes are arranged by scientific (Latin) nomenclature. Only the most current standard scientific (Latin) name is given. Obsolete and debated scientific names are numerous. Adjustments to taxonomical classification are not uncommon, including reclassification to a different genus. The previous or alternative versions of common (vernacular) names are shown. Be aware that some market names (those used commercially) are scientifically incorrect. For brevity, this table excludes some species and races, particularly under Coregonus and Salvelinus. ARLIS Call Numbers for Salmonidae under QL638 Salmonidae Salmonidae (in general or two or more genuses) .S2 Coregonidae -
California Golden Trout: Perspectives on Restoration and Management
VOL 35 NO 11 NOVEMBER 2010 Fish NewsNews Legislative Update Update FisheriesFisheriesAmerican Fisheries Society • www.fi sheries.org Journal Highlights Highlights Calendar Jobs CenterCenter THIRD CALL FOR PAPERS Conserving Peripheral Trout Populations: 2011 ANNUAL MEETING the Values and Risks of Life on the Edge SEATTLE California Golden Trout: Perspectives on Restoration and Management Fisheries • v o l 35 n o 11 • n o v e m b e r 2010 • w w w .f i s h e r i e s .o r g 521 Biomark 522 Fisheries • v o l 35 n o 11 • n o v e m b e r 2010 • w w w .f i s h e r i e s .o r g VOL 35 NO 11 NOVEMBER 2010 Fisheries AMERICAN FISHERIES SOCIETY • WWW.FISHERIES.ORG EDITORIAL / SUBSCRIPTION / CIRCULATION OFFICES 5410 Grosvenor Lane, Suite 110 • Bethesda, MD 20814-2199 301/897-8616 • fax 301/897-8096 • main@fi sheries.org The American Fisheries Society (AFS), founded in 1870, is the oldest and largest professional society representing 530 550 fi sheries scientists. The AFS promotes scientifi c research and enlightened management of aquatic resources for optimum use and enjoyment by the public. It also encourages comprehensive education of fi sheries scientists and continuing on-the-job training. Contents AFS OFFICERS FISHERIES STAFF EDITORS COLUMN: Fish species preservation goes back a long PRESIDENT SENIOR EDITOR SCIENCE EDITORS ways. California’s efforts to preserve the Wayne A. Hubert Ghassan “Gus” N. Rassam Madeleine Hall-Arber 524 PRESIDENT’S HOOK Ken Ashley golden trout began more than a century PRESIDENT ELECT DIRECTOR OF Doug Beard New Frontiers in Fisheries William L. -
Dolly Varden (Salvelinus Malma) Data: Alaska Department of Fish & Game Partners: AK______
Dolly Varden (Salvelinus malma) Data: Alaska Department of Fish & Game Partners: AK__________________________ Species Status Review: into the various saltwater habitats. Freshwater habitat requirements of Dolly Varden range from Populations of Dolly Varden are generally headwater streams to large deep lakes and large thought to be stable throughout Alaska with some rivers. Saltwater habitat ranges from estuaries concerns about specific stocks, primarily around and coastal shorelines to the open ocean. urban centers. Unimpeded migrations within and between freshwater habitats and passage to and from the Sportfishing Status of Dolly Varden: ocean are essential to maintain the different life histories expressed by Dolly Varden populations. Dolly Varden are a popular sport and subsistence fish throughout much of their range. Annually, Range of Dolly Varden: sport anglers in Alaska catch approximately 500,000 and harvest over 50,000 fish. The range of Dolly Varden extends throughout the coastal areas of the state from Southeast Distribution of Dolly Varden: Alaska across the Gulf of Alaska and the Bering Sea into the Chukchi and Beaufort seas to the Dolly Varden are the most widely-distributed Mackenzie River in northern Canada. Dolly salmonid in Alaska and occupy most coastal Varden also occur in streams in Interior Alaska waters in the state. Two forms or sub-species of and the Brooks Range. Elsewhere, their range Dolly Varden have been described in Alaska. stretches along the Pacific coast of North The northern (S. m. malma) form is distributed America from Washington to the Arctic coast of from the Mackenzie River to the north side of the Canada, and along the Pacific coast of Asia from Alaska Peninsula while the southern form (S. -
An Angler's Guide to the California Heritage Trout Challenge
An Angler’s Guide to the California Heritage Trout Challenge ©Tim Gunther State of California Natural Resources Agency California Department of Fish and Wildlife Heritage and Wild Trout Program An Angler’s Guide to the California Heritage Trout Challenge State of California Natural Resources Agency California Department of Fish and Wildlife Heritage and Wild Trout Program 2017 Table of Contents Chapter 1: Coastal Rainbow Trout 2 Chapter 2: Eagle Lake Rainbow Trout 10 Chapter 3: Coastal Cutthroat Trout 18 Chapter 4: Lahontan Cutthroat Trout 26 Chapter 5: Paiute Cutthroat Trout 34 Chapter 6: McCloud River Redband Trout 42 Chapter 7: Goose Lake Redband Trout 52 Chapter 8: Warner Lakes Redband Trout 60 Chapter 9: Golden Trout Overview 66 Chapter 10: Kern River Rainbow Trout 72 Chapter 11: Little Kern Golden Trout 80 Chapter 12: California Golden Trout 86 Chapter 13: Bull Trout 92 Chapter 14: Frequently Asked Questions 96 Chapter 15: How To Complete The Challenge 100 Chapter 16: Fish Handling And Release 104 Chapter 17: Aquatic Invasive Species 106 Chapter 18: Special Considerations 110 Contributors 113 Additional Resources 114 Preface California’s natural heritage includes one of the most and awareness about the beauty, diversity, histori- diverse assemblages of native trout forms found in cal significance and special values of California’s na- the United States. Over the millennia, 12 different tive trout and their habitats. The native trout forms sub-species, or forms, of trout evolved to inhabit the in this state are regarded as “heritage” trout and the diverse habitats found in California. These include program’s name was accordingly changed to the Her- temperate rain forests, high deserts, large inland riv- itage and Wild Trout Program. -
Description of Three Species of Salvelinus (Teleostei: Salmonidae) from the Great Smoky Mountains National Park, Tennessee, U.S.A
1 Ichthyological Exploration of Freshwaters/IEF-1118/pp. 1-14 Published 3 August 2020 LSID: http://zoobank.org/urn:lsid:zoobank.org:pub:CF8C14E2-AC97-4E38-A39F-399203EF2772 DOI: http://doi.org/10.23788/IEF-1118 Description of three species of Salvelinus (Teleostei: Salmonidae) from the Great Smoky Mountains National Park, Tennessee, U.S.A. Jay R. Stauffer, Jr.* Three new species of Salvelinus are described from the Great Smoky Mountains National Park, Tennessee. The light spots on a dark background clearly place all three species in the genus Salvelinus. All three species are in subgenus Baione, which to date contains only one extant species, Salvelinus fontinalis. Synapomorphies of Baione include mottled vermiculated markings on the dorsal portion of the body, on caudal and dorsal fins; the black edge and white border of the pelvic and anal fins; and the lack of teeth on the basibranchials. The three new spe- cies all possess these synapomorphies of Baione. The higher number of vertebrae and retrognathous jaws, which form a slightly inferior mouth distinguish all three species from Salvelinus fontinalis. Salvelinus kingi, new species, is distinguished from Salvelinus multidentatus, new species, by the fewer number of teeth on the basihyal (5-7 vs. 8-9) and from Salvelinus angustus, new species, by fewer lateral-line scales (109-115 vs. 118-130). The number of lateral-line scales of S. angustus (118-130) differentiates it from S. multidentatus (88-111). Introduction of the introduced Rainbow Trout (Oncorhynchus mykiss (Walbaum, 1792)) historically has been the Salmonid fishes inhabiting lower latitudes in major cause of continued decline in the distribu- North America present significant challenges to tion of Salvelinus spp.