Abstract
ESR Endangered Species Research Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsSpecials ESR 35:39-45 (2018) - DOI: https://doi.org/10.3354/esr00872 NOTE First record of nest building, spawning and sexual dimorphism in the threatened Cowichan Lake lamprey Entosphenus macrostomus Joy Wade1,*, Lindsay Dealy2, Sean MacConnachie2 1Fundy Aqua Services, Nanoose Bay, British Columbia V9P 9B3, Canada 2Fisheries and Oceans Canada, Nanaimo, British Columbia V9T 6N7, Canada *Corresponding author: joywadefundyaqua@gmail.com ABSTRACT: The Cowichan Lake lamprey Entosphenus macrostomus is a parasitic freshwater fish endemic to Cowichan, Mesachie and Bear lakes in British Columbia, Canada. Its restricted distribution and inherent vulnerability to localized threats were principal factors resulting in this species being listed as ‘threatened’ under Canada’s Species at Risk Act. This study documents the first report of nest building, spawning and sexual dimorphism in E. macrostomus. Preliminary data such as spawning locations and nest size will inform the management and protection of this species and its habitat as a Species at Risk, as well as future research. KEY WORDS: Lamprey · Spawning · Nest building · Habitat · Conservation · British Columbia Full text in pdf format PreviousNextCite this article as: Wade J, Dealy L, MacConnachie S (2018) First record of nest building, spawning and sexual dimorphism in the threatened Cowichan Lake lamprey Entosphenus macrostomus. Endang Species Res 35:39-45. https://doi.org/10.3354/esr00872 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in ESR Vol. 35. Online publication date: January 15, 2018 Print ISSN: 1863-5407; Online ISSN: 1613-4796 Copyright © 2018 Inter-Research.
Highlights
Cowichan Lake lamprey Entosphenus macrostomus are found only in Mesachie, Bear and Cowichan lakes on Vancouver Island, British Columbia, Canada (Fig. 1)
Little is known of the general biology, behaviour and spawning habitat of Cowichan Lake lamprey
Preliminary data that we collected on the biology and behaviour of Cowichan Lake lamprey during the spawning season will be used to inform management of the species and future research
Summary
Cowichan Lake lamprey Entosphenus macrostomus are found only in Mesachie, Bear and Cowichan lakes on Vancouver Island, British Columbia, Canada (Fig. 1). The species was first described in 1982 as Lampetra macrostoma (Beamish 1982) and was listed in 2003 as ‘threatened’ under Canada’s Species at Risk Act. Listing was partly based on its restricted distribution and inherent vulnerability to localized threats, such as habitat alteration. Little is known of the general biology, behaviour and spawning habitat of Cowichan Lake lamprey. The species is considered Endangered by the IUCN (2017). Spawning has been reported from May to the end of July, with peak spawning in June (Beamish & Wade 2008). Mature lamprey have only been observed in 2 locations, a tributary to Mesachie Lake and the mouth of Robertson River in
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
