Dynamic Environment & Ecosystem Health Research

Chain pickerel in the Maritimes.
Group of people wearing lifejackets, waterproofs and hats in an aluminium boat pulling up a fish gill net from the lake.


Home

People

Research & Opportunities
   
Historical gold mine tailings

   Chinese mystery snails
  
Chain pickerel
Publications
Teaching

Resources & Links

Lab news
Media & updates

Directions








Chain pickerel are not fussy eaters.

Note: If you are interested in potential applications of our research, joining our research group or would like to contribute to our data analyses, please email Dr. Linda Campbell.

Chain pickerel (Esox niger) is a widely introduced fish species in Nova Scotia lakes. It is an aggressive ambush predator which will consume a wide variety of food ranging from dragonfly larvae to fish to frogs. Small mammals, birds and turtles have even been found in chain pickerel stomachs!  Chain pickerel is associated with significant declines in diverse fish and amphibian populations and will impact native sport fisheries.
A graph from Mitchell et al (2010) showing the number of lakes with chain pickerel since 1940s, increasing to over 100 lakes in 2010.


Our work looks how chain pickerel may be affecting contaminant transfer and vulnerable species in many lakes across Nova Scotia and New Brunswick. We are using stable isotopes of nitrogen and carbon to analyse food web structure connectivity and how chain pickerel may be affecting food webs. 

We are currently collaborating on several projects at those locations that focus on impacts of chain pickerel on vulnerable ecosystems and food webs.
RESOURCES:
  • Nova Scotia Invasive Species Council. Link.
  • Alien species in Nova Scotia. NS Government public communication document. Link.
  • NS Fisheries & Aquaculture AIS page with links to fishing regulations and tips for preventing spread. Link.
  • Report: "Impact of introduced chain pickerel (Esox niger) on lake fish communities in Nova Scotia, Canada" SC Mitchell, JE LeBlanc & AJ Heggelin. 2010. PDF document.
  • CBC article on chain pickerel in Kejimkujik National Park (2018, 2019). Link, Link.
  • CBC article on chain pickerel in the LeHave River system (2017, 2019).Link, Link.
  • Go Cape Breton article on chain pickerel in Blackett Lake (2018). Link.
  • Summary of the Yellow lampmussel (Lampsilis cariosa) status. DFO Species at Risk. PDF Document.
  • COSEWIC 2013 Status Appraisal Summary on the Yellow Lampmussel Lampsilis cariosa in Canada. PDF Document.
  • COSEWIC 2008 Assessment and Update Status Report on the Rainbow smelt (Osmerus mordax) - Lake Utopia large-bodied and small-bodied populations in Canada. PDF Document.
  • Summary of Atlantic whitefish projects by Coastal Foundation. Link.
  • How are stable isotopes used to characterize and interpret food web structures? Series of lectures by Dr. Brian Hayden. Link.

Panorama of a blue lake on a clear day, showing a boat landing road, with a small figure walking along the shoreline



Headings

- Chain pickerel
- Collaborations and projects.
- Readings & resources.



A row of freshly caught chain pickerel of different sizes on a blue plastic tarp
All images and content copyright (c) Linda Campbell and other members of Dynamic Environment & Ecosystem Health Research Group.