COSEWIC assessment and status report on the spotted gar, Lepisosteus oculatus, in Canada . : CW69-14/67-2016E-PDF
"Long-term monitoring data do not exist for this species, although it appears that the populations in Point Pelee and Rondeau Bay are stable. The level of natural reproduction in Long Point Bay is unknown, but likely very low, because juveniles were not detected during targeted sampling in 2014. Population genetic data also suggest that the Long Point population is a sink and is sustained by immigrants from other Lake Erie sites. Population genetic data indicate that there are several distinct populations of Spotted Gar within the Canadian range, with low levels of inferred gene flow between them. Due to its isolation and small size, the Point Pelee population appears to be a source of novel genetic diversity that is exported through asymmetrical gene flow to the other Lake Erie populations. Ongoing threats to this species in Canada include the proliferation of the invasive European Common Reed (Phragmites australis australis) and the loss of wetland habitat through human activities. A federal recovery strategy has been completed (Staton et al. 2012) that summarizes these threats and research needs to facilitate recovery of the Spotted Gar”--Preface (p. xi).
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| Ministère/Organisme | Canada. Environment Canada, issuing body. Committee on the Status of Endangered Wildlife in Canada, issuing body. Canadian Wildlife Service, issuing body. |
|---|---|
| Titre | COSEWIC assessment and status report on the spotted gar, Lepisosteus oculatus, in Canada . |
| Variante du titre | Spotted gar, Lepisosteus oculatus, in Canada COSEWIC status report on the spotted gar, Lepisosteus oculatus, in Canada |
| Type de publication | Monographie |
| Langue | [Anglais] |
| Autres langues publiées | [Français] |
| Format | Électronique |
| Document électronique | |
| Note(s) | Issued also in French under title: Évaluation et rapport de situation du COSEPAC sur le lépisosté tacheté, Lepisosteus oculatus, au Canada. Cover title. "Endangered, 2015." "COSEWIC acknowledges Dr. William Glass and Dr. Nicolas Mandrak for writing the status report [...]. This status report was overseen and edited by Dr. Eric Taylor, Co-chair of the COSEWIC Freshwater Fishes Specialist Subcommittee"--Cf. (p. ii). Includes bibliographical references (p. 27-31). |
| Information sur la publication | Ottawa : Environment Canada, Canadian Wildlife Service, COSEWIC Secretariat, c2015. |
| Auteur / Contributeur | Glass, William R., author. Taylor, Eric Burke,1958- editor. |
| Description | xii, 40 p. : col. ill., col. maps |
| ISBN | 978-0-660-22629-3 |
| Numéro de catalogue |
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| Descripteurs | Endangered species Freshwater fish Nature conservation |
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