Evaluation of fisheries restoration actions such as the reestablishment of coregonine populations requires a life stage approach to evaluate program success and improve understanding on potential recruitment bottlenecks. Prior to their extirpation, Lake Ontario...
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Evaluating post-stocking movement, mortality, and habitat use of fall-stocked cisco Coregonus artedi in Saginaw Bay, Lake Huron with acoustic telemetry
The Lake Huron Committee aims to restore cisco Coregonus artedi in Lake Huron (DesJardine et al. 1995; Lake Huron Technical Committee 2023). To that end, the Lake Huron Technical Committee has implemented a plan for re-establishing a population in the main basin of...
Supporting evaluation components of the Lake Huron Technical Committee’s Cisco reintroduction study for FY24
Cisco (Coregonus artedi) are functionally absent from the western main basin of Lake Huron and as such restoring Cisco “to a significant level” (DesJardine 1995) remains an unmet objective for Lake Huron management agencies (Riley and Ebener 2020). In 2007 the Lake...
Developing a coordinated approach to monitoring of coregonine brood and cultured progeny in the R3 FWS Hatchery Program
Supporting evaluation components of the Lake Huron Technical Committee’s cisco reintroduction study: a multi-agency effort to promote cisco recovery in the western basin of Lake Huron (FY19)
The U.S. Fish and Wildlife service conducted two surveys in 2019 aimed at documenting the current distribution, composition, and density of the larval coregonid community in Saginaw Bay. Sampling was limited to pelagic ichthyoplankton and beach seining due to the...
Supporting evaluation components of Lake Huron Technical Committee’s cisco reintroduction study: a multi-agency effort to promote cisco recovery in the western main basin of Lake Huron (FY21)
The U.S. Fish and Wildlife service conducted larval coregonine surveys in 2021 aimed at documenting the current distribution, composition, and density of the larval coregonid community in Saginaw Bay. Sampling of the ichthyoplankton community was limited to pelagic...
A coordinated approach to monitoring of a coregonine brood and cultured progeny in the R3 FWS hatchery program
Broodstock management and monitoring programs are vital components of all types of stocking initiatives (e.g. Captive, Supportive, restorative, rescue). Broodstock collection and development should aim to preserve genetic diversity and minimize inbreeding and stocking...
Region 3 wild coregonine brood stock collection activities for FY 2021 in support of restoration activities on Lake Huron and Lake Ontario
The U.S. Fish and Wildlife Services Midwest Region Fisheries Program carried out two projects in support of a multi-agency effort to restore coregonid populations in Lakes Huron and Ontario. The first project began in 2015 when USFWS began documenting the spawning...
Use of multi-gear sampling to improve abundance estimates of demersal Coregonines in the Great Lakes
Acoustic and mid-water trawl surveys have been used to estimate abundance and biomass of Great Lakes coregonines for decades. Acoustic sampling has potential to be an important tool in the assessment of future coregonine restoration efforts because new populations...
Supporting evaluation components of the Lake Huron Technical Committee’s Cisco reintroduction study: a multi-agency effort to promote Cisco recovery in the western main basin of Lake Huron (FY22)
The U.S. Fish and Wildlife service conducted larval coregonine surveys in 2022 aimed at documenting the current distribution, composition, and density of the larval coregonid community in Saginaw Bay. Sampling of the ichthyoplankton community was limited to pelagic...
Detection of Lake Erie Cisco using eDNA – Applications to Cisco Restoration in the Laurentian Great Lakes
Understanding extant diversity in compromised and healthy ecosystems is important to maintaining or restoring species diversity. Cisco (Coregonus artedi) and other coregonines were once found in all five Great Lakes and were central to Great Lakes food webs. The loss...
Supporting evaluation components of the Lake Huron Technical Committee’s Cisco reintroduction study for FY23
Cisco (Coregonus artedi) are functionally absent from the western main basin of Lake Huron and as such restoring cisco “to a significant level” (DesJardine 1995) remains an unmet objective for Lake Huron management agencies (Liskauskas et al. 2007). In 2007 the Lake...
Can stocked Bloater (Coregonus hoyi) survival be increased with environmental conditioning?
Bloater (Coregonus hoyi) were historically an important component of the Lake Ontario fish community but the species was likely extirpated by the 1970’s. A binational restoration has stocked over one million Bloater into Lake Ontario since 2012, however, low...
Development of conceptual early life history models and evaluation of sampling techniques in support of long-term monitoring for cisco and lake whitefish
Recruitment is set early during life (<2 years of age) for many fish populations (Hjort 1914, Houde 1987). From fertilization to juvenile stages, fishes are susceptible to abiotic and biotic factors that directly or indirectly influence growth, condition, and survival (Ludsin et al. 2014, Pritt et al. 2014). The mechanistic processes influencing recruitment, their interactions,and the timing at which they are most influential remains unclear for many fishes. By improving understanding of early life history (ELH) ecology and recruitment constraints, we can improve monitoring and support more informed management decisions. Long-term ELH monitoring programs that inform management are limited for cisco (Coregonus artedi) across the Great Lakes.
Building molecular tools for coregonine species identification
The larval phase of Coregonus spp. represent a bottleneck in year class strength that is not well understood in extant populations and could present an impediment for coregonine restoration efforts in the Great Lakes. The use of species-specific DNA sequences to...