Download or read book Genetic Differentiation and Origin of the Shortjaw Cisco Coregonus Zenithicus in the Great Lakes and Other Inland Canadian Lakes written by Julie Turgeon and published by . This book was released on 2013 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ciscoes display a phenomenal level of ecophenotypic diversity throughout their North American range, leading to taxonomic uncertainty and complicating conservation efforts. Predictions associated with three hypotheses on the origin of this diversity, and in particular of the Shortjaw distinct phenotype, are evaluated. These hypotheses are the 'Plasticity Hypothesis', the 'Good Species Hypothesis', and the 'Parallel Origin Hypothesis'. Patterns of genetic variation at 290 AFLP loci among 1371 individuals from twenty lakes are analysed, including 387 individual fish identified as (or likely representing) Shortjaw Cisco (Coregonus zenithicus) from 10 lakes. Genetic cluster analyses, association between individual genetic characteristics and phenotypic attributes, genetic re-allocation and analyses of molecular variance were performed.--Document.
Download or read book Canadian Government Publications Catalogue written by and published by . This book was released on 2013 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advice on Taxonomic Validity and Designatable Units of Shortjaw Cisco Coregonus Zenithicus Populations in Canada written by and published by . This book was released on 2013 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: In April 1987, the Committee on the Status of Endangered Wildlife in Canada (COSEWIC) designated Shortjaw Cisco (Coregonus zenithicus) as Threatened. The status was re-examined and confirmed in May 2003. These species must be re-assessed under the new criteria of the Act before they can be added to Schedule 1, and thus receive legal protection, or be removed from the list. Typically, products of a pre-COSEWIC assessment are Canadian Science Advisory Secretariat (CSAS) Research Documents and Proceedings summarizing key points of discussion at the meeting. In the case of Shortjaw Cisco, however, a second objective of the meeting (in addition to the peer review) was to provide Science Advice on the taxonomic validity of Shortjaw Cisco outside of the Laurentian Great Lakes and, if deemed to be valid, the designatable units (DUs) that should be recognized within Canada. These intertwined issues have been the subject of ongoing debate in the scientific literature. The resolution of these issues will aid in the accuracy of the COSEWIC assessment.--Document.
Download or read book Marine Fishes of Arctic Canada written by Brian W. Coad and published by University of Toronto Press. This book was released on 2018-01-01 with total page 633 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marine Fishes of Arctic Canada is an accessible and up-to-date study on the diverse marine fish population existing in Canadian waters.
Download or read book A Morphological Examination of Sympatric Cisco Forms in Four Lakes with Specific Reference to the Occurrence of Shortjaw Cisco Coregonus Zenithicus in Manitoba written by Lee Murray and published by . This book was released on 2006 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: The shortjaw cisco (Coregonus zenithicus) is a widespread species ranging from the Great Lakes region, northwest to Great Slave Lake. Beyond the Great Lakes region, the validity of this species has been questioned due to genetic and morphological variability. Ciscoes were collected from four lakes reported to contain putative C. zenithicus (Lake Athapapuskow, George Lake, and Clearwater Lake, MB; and Reindeer Lake, SK). An examination of gillraker count and arrangement, jaw position, body size, and dorsal colouration was used to initially identify cisco forms within each lake. Multivariate analyses including Principal Component Analysis and Discriminant Analysis incorporating additional meristic and morphometric characters were used to examine within-lake and between-lake variation. Sympatric low and high gillraker forms were found within each lake. The low forms were found to conform to populations of C. zenithicus reported in the literature and the high forms were found to be consistent with descriptions of C. artedi.
Download or read book Distribution and Relative Abundance of the Shortjaw Cisco Coregonus Zenithicus in Alberta written by Mark Steinhilber and published by Fisheries & Wildlife Management Division, Resource Status and Assessment Branch. This book was released on 2001-01-01 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Status Report on the Shortjaw Cisco Coregonus Zenithicus in Central and Western Canada written by L. Murray and published by . This book was released on 2003 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Re examination of the Nominal Shortjaw Cisco Coregonus Zenithicus in Barrow Lake Alberta and Taxonomic Evaluation of Neighboring Cisco Populations written by and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Re examination of the Nominal Shortjaw Cisco Coregonus Zenithicus in Barrow Lake Alberta and Taxonomic Evaluation of Neighboring Cisco Populations written by Mark Steinhilber and published by . This book was released on 2000 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NWT Shortjaw Cisco written by Northwest Territories. Department of Resources, Wildlife and Economic Development and published by . This book was released on 2001 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coregonid Fishes of the Great Lakes written by Walter Koelz and published by . This book was released on 1929 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Status Report on the Shortjaw Cisco Coregonus Zenithicus in Canada written by J. J. P. Houston and published by . This book was released on 1987 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Patterns of Morphological Diversity in Ciscoes Distributed Within Three of Manitoba s Glacial Relict Lakes with Reference to Shortjaw Cisco Coregonus Zenithicus written by D. A. Boguski and published by . This book was released on 2014 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluating the Current Status of Deepwater Ciscoes Coregonus Spp in the Canadian Waters of Lake Huron 2002 2012 with Emphasis on Shortjaw Cisco C Zenithicus written by Nicholas Edward Mandrak and published by . This book was released on 2014 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book COSEWIC Assessment and Update Status Report on the Shortjaw Cisco Coregonus Zenithicus in Canada written by Thomas N. Todd and published by . This book was released on 2003 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Variation in Morphology Life History and Ecology of Cisco in Great Bear Lake Northwest Territories Canada written by Kimberly Lynn Howland and published by . This book was released on 2013 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ciscoes Coregonus Subgenus Leucichthys of the Laurentian Great Lakes and Lake Nipigon written by Randy L. Eshenroder and published by . This book was released on 2016 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This study of the ciscoes (Coregonus, subgenus Leucichthys) of the Great Lakes and Lake Nipigon represents a furtherance through 2015 of field research initiated by Walter Koelz in 1917 and continued by Stanford Smith in the mid-1900s—a period spanning nearly a century. Like Koelz's study, this work contains information on taxonomy, geographical distribution, ecology, and status of species (here considered forms). Of the seven currently recognized forms (C. artedi, C. hoyi, C. johannae, C. kiyi, C. nigripinnis, C. reighardi, and C. zenithicus) described by Koelz as major in his 1929 monograph, two (C. johannae and C. reighardi) are extinct. In addition, C. alpenae, described by Koelz but subsequently synonymized with C. zenithicus, although extinct, is recognized as valid making a total of eight major forms. Six of these forms, all but C. artedi and C. hoyi, have been lost from Lake Michigan, and seven have been lost from Lake Huron, leaving in Lake Huron only C. artedi and an introgressed deepwater form that we term a hybrid swarm. C. artedi appears, like its sister form C. alpenae, to have been lost from Lake Erie. Only C. artedi remains extant in Lake Ontario, its three sister forms (C. hoyi, C. kiyi, and C. reighardi) having disappeared long ago. Lakes Superior and Nipigon have retained their original species flocks consisting of four forms each: C. artedi, C. hoyi, and C. zenithicus in both lakes; C. kiyi in Lake Superior; and C. nigripinnis in Lake Nipigon. Morphological deviations from the morphotypes described by Koelz have been modest in contemporary samples. Overall, C. kiyi and C. artedi were the most morphologically stable forms while C. hoyi, C. nigripinnis, and C. zenithicus were the least stable. Although contemporary populations of C. artedi from Lakes Michigan and Huron are highly diverged from the morphotypes described by Koelz, the contemporary samples were of undescribed deep-bodied forms unlikely to have been sampled by Koelz because of their association with bays. Of the two intact species flocks, Lake Nipigon's was much less stable morphologically than Lake Superior's even though Lake Nipigon is far less disturbed. Two priorities for research are determining the role of developmental plasticity in morphological divergence, especially within C. zenithicus of Lake Superior, and the basis for morphological divergence in C. artedi"--Page 1.
