Techniques and Methods for Estimating Abundance of Larval and Metamorphosed Sea Lampreys in Great Lakes Tributaries, 1995 to 2001

Slade, Jeffrey W.; Adams, Jean V.; Christie, Gavin C.; Cuddy, Douglas W.; Fodale, Michael F.; Heinrich, John W.; Quinlan, Henry R.; Weise, Jerry G.; Weisser, John W.; Young, Robert J.

doi:10.1016/s0380-1330(03)70483-3

Cited by 83 publications

(69 citation statements)

References 21 publications

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“…For example, in tributaries of the Great Lakes, habitat suitability in sea lamprey surveys is qualitatively assessed as preferred (Type I = a loosely compacted mixture of sand and fine organic matter in depositional areas), acceptable (Type II = shifting sand or gravel with little fine organic matter), or unacceptable (Type III = bedrock, rubble or gravel) Slade et al 2003). Harvey and Cowx (2003) recommend delineation of habitat as either optimal (stable, fine sediment or sand >15 cm deep, low water velocity with organic detritus present) or sub-optimal (transient shallow sediment interspersed with coarse substrate such as sediment trapped by tree roots, detritus overlying bedrock, or submerged vegetation rooted in silt or sand).…”

Section: Juvenilesmentioning

confidence: 99%

“…Ammocoete populations are sampled annually in most surveys (e.g., Weise and Pajos 1998;Quintella et al 2003;Slade et al 2003). This infrequent sampling arises from the assumption that ammocoetes do not move much between rearing areas in a given year.…”

Section: Juvenilesmentioning

confidence: 99%

“…Such surveys should occur only in the summer or fall after larval settlement. For anadromous species in most systems, sampling in late summer and fall also allows for collection of metamorphosing lamprey prior to their emigration from freshwater habitats (Harvey and Cowx 2003;Slade et al 2003).…”

Section: Juvenilesmentioning

confidence: 99%

“…Much of the methodology currently in use for capture and collection of lamprey was originally developed in the 1950s during efforts to enumerate and eradicate non-indigenous sea lamprey Petromyzon marinus in the North American Great Lakes (Braem and Ebel 1961). Sea lamprey became established in the Great Lakes in the early 1900s, and their proliferation resulted in the development of methods to assess abundance and evaluate the effects of various control measures (reviewed in Christie and Goddard 2003;Slade et al 2003).…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, several independent protocols for sampling lamprey have been developed (Harvey and Cowx 2003;Slade et al 2003). Collection methods vary dramatically depending on the objective of sampling, the target species, and/or the life stage of interest.…”

Section: Introductionmentioning

confidence: 99%

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Capture and collection of lampreys: the state of the science

Moser

Butzerin

Dey

2007

Rev Fish Biol Fisheries

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The need for native lamprey conservation, improved lamprey fishery management, and better assessment of non-indigenous lamprey control measures has resulted in increased effort to survey lamprey populations and assess their status. Depending on the study objectives and target species/life stage, collection methods vary dramatically. We therefore provide a comprehensive review of sampling considerations and techniques used to capture, collect, handle, and enumerate both juvenile and adult lamprey life stages. Surveys for lamprey are often constrained by the lack of basic biological information, such as reliable characters for field identification of larvae (ammocoetes), migratory timing of anadromous forms, and spawning/nest building behavior of adults. However, there are a number of studies that have documented habitat preferences of the relatively sedentary ammocoetes. Consequently, existing sampling protocols have focused on the development of stratified sampling that targets optimal ammocoete habitat. In addition to this approach, we discuss methods and gear that can be used to survey migratory life stages, lamprey nests, and difficult-to-sample, deepwater ammocoete habitats.

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Section: Juvenilesmentioning

confidence: 99%

Section: Juvenilesmentioning

confidence: 99%

Section: Juvenilesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Capture and collection of lampreys: the state of the science

Moser

Butzerin

Dey

2007

Rev Fish Biol Fisheries

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Evaluation of environmental DNA surveys for identifying occupancy and spatial distribution of Pacific Lamprey (Entosphenus tridentatus) and Lampetra spp. in a Washington coast watershed

et al. 2019

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Surveys of environmental DNA (eDNA) have become an important and multifaceted tool for monitoring and identifying distributions and occupancy of aquatic species. This tool is attractive because it is powerful, easy to apply, and provides an alternative to traditional field survey methods. However, validating eDNA survey methods against traditional field survey methods is warranted prior to their application. We used eDNA and electrofishing to survey 10 sites in 3 tributaries of the Chehalis River, Washington, to infer distribution and occupancy of Entosphenus tridentatus and Lampetra spp. Both methods produced similar detection rates for E. tridentatus, and Lampetra spp. were detected at slightly greater frequency with eDNA in the Black River and Skookumchuck River. Within each of the three tributaries, eDNA concentration was negatively related to sample distance from the Chehalis River mainstem for E. tridentatus but not for Lampetra spp., which indicates E. tridentatus and Lampetra spp. may be distributed differently within tributaries. Application of lamprey eDNA data to a multiscale occupancy model indicated high probability of detecting eDNA in water samples and quantitative PCR (qPCR) assays. Broad distribution and high detection of E. tridentatus and Lampetra spp. suggest robust populations inhabit the Chehalis River basin. Our findings suggest eDNA surveys may be comparable to electrofishing for informing lamprey occupancy and distributions. Such sampling is efficient and cost‐effective and we anticipate that eDNA surveys will become a valuable tool in addressing key research and monitoring needs for conservation and restoration of lampreys in general.

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Using a Customized Portable Deepwater Electrofisher to Assess Larval Lamprey Populations in Irrigation Canals

Mueller

Lampman

Beals

2021

N American J Fish Manag

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Water diversions are very common in agricultural landscapes, providing water to irrigate a diverse range of crops. Larval Pacific Lamprey Entosphenus tridentatus are vulnerable to entrainment during the irrigation withdrawals and can be exposed to desiccation or predation during dewatering at the end of the irrigation season. A customized portable deepwater electrofishing system was deployed to determine larval lamprey densities at two large scaled irrigation diversion canals located on the Yakima River in eastern Washington. The system components can be easily transported to a remote survey site due the number of components and minimal total weight. The surveys were conducted in the fall during the dewatering period in 2015 and 2017, and the densities for larval lampreys ranged from 0.8 to 8.8 fish/m2 at the Sunnyside Canal and 4.2 fish/m2 at the Wapato Canal (2015 only). Our results indicate that the use of the deepwater electroshocking system was effective at determining larval lamprey presence and densities in hard‐to‐sample irrigation canals.

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Techniques and Methods for Estimating Abundance of Larval and Metamorphosed Sea Lampreys in Great Lakes Tributaries, 1995 to 2001

Cited by 83 publications

References 21 publications

Capture and collection of lampreys: the state of the science

Capture and collection of lampreys: the state of the science

Evaluation of environmental DNA surveys for identifying occupancy and spatial distribution of Pacific Lamprey (Entosphenus tridentatus) and Lampetra spp. in a Washington coast watershed

Using a Customized Portable Deepwater Electrofisher to Assess Larval Lamprey Populations in Irrigation Canals

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