scholarly journals An adaptive management implementation framework for evaluating supplemental sea lamprey (Petromyzon marinus) controls in the Laurentian Great Lakes

2021 ◽  
Author(s):  
Sean A. Lewandoski ◽  
Travis O. Brenden ◽  
Michael J. Siefkes ◽  
Nicholas S. Johnson
Keyword(s):  
Great Lakes ◽  
Adaptive Management ◽  
Petromyzon Marinus ◽  
Sea Lamprey ◽  
Laurentian Great Lakes ◽  
Implementation Framework

Management inferences from a demographic analysis of sea lamprey (Petromyzon marinus) in the Laurentian Great Lakes

2008 ◽  
Vol 65 (2) ◽  
pp. 227-244 ◽  
Author(s):  
Luis Antonio Vélez-Espino ◽  
Robert L McLaughlin ◽  
Thomas C Pratt
Keyword(s):  
Great Lakes ◽  
Life Stage ◽  
Petromyzon Marinus ◽  
Management Strategies ◽  
Sea Lamprey ◽  
Management Plan ◽  
Laurentian Great Lakes ◽  
Alternative Methods ◽  
Vital Rates ◽  
Population Growth Rates

We use matrix models incorporating uncertainty in values of life history traits and density-dependent survival to assess pest management strategies implemented by the Great Lakes Fishery Commission to control nonnative sea lamprey (Petromyzon marinus) in the Laurentian Great Lakes. The primary method of sea lamprey control has been treatment of rearing tributaries with chemical lampricides, but release of sterilized males and deployment of migratory barriers and traps are important components of the management plan. Uncertainties in the effectiveness of alternative control remain, however. Our models demonstrated that the management target of reducing lampricide use by 20% while maintaining current levels of control could be achieved if alternative methods are used to suppress current lake-wide fecundity rates by 49%–65%, assuming equal lampricide efficiency on larvae and metamorphosing individuals, or by 42%–55% when lampricide mortality on larvae is assumed to be half of that on metamorphosing individuals. At current levels of lampricide use, reduction to 72%–88% of current fecundity rates is recommended to ensure long-term control of sea lamprey populations in the face of uncertainty in current estimates of population growth rates. New control options targeting additional vital rates, such as survival of the parasitic life stage, could further reduce reliance on lampricides while maintaining effective sea lamprey control.

scholarly journals Population ecology of the sea lamprey (Petromyzon marinus) as an invasive species in the Laurentian Great Lakes and an imperiled species in Europe

2016 ◽  
Vol 26 (3) ◽  
pp. 509-535 ◽  
Author(s):  
Michael J. Hansen ◽  
Charles P. Madenjian ◽  
Jeffrey W. Slade ◽  
Todd B. Steeves ◽  
Pedro R. Almeida ◽  
...  
Keyword(s):  
Invasive Species ◽  
Great Lakes ◽  
Population Ecology ◽  
Petromyzon Marinus ◽  
Sea Lamprey ◽  
Laurentian Great Lakes ◽  
Imperiled Species

A deathly odor suggests a new sustainable tool for controlling a costly invasive species

2011 ◽  
Vol 68 (7) ◽  
pp. 1157-1160 ◽  
Author(s):  
C. Michael Wagner ◽  
Eric M. Stroud ◽  
Trevor D. Meckley
Keyword(s):  
Invasive Species ◽  
Great Lakes ◽  
Behavioral Response ◽  
Petromyzon Marinus ◽  
Soxhlet Extraction ◽  
Control Program ◽  
Sea Lamprey ◽  
Laurentian Great Lakes ◽  
Sea Lampreys

Here we confirm a long-standing anecdotal observation; the sea lamprey ( Petromyzon marinus ) actively avoids the odor emitted by decaying conspecifics. We extracted the semiochemical mixture produced by the putrefying carcasses of sea lampreys via Soxhlet extraction in ethanol and exposed groups of 10 migratory-phase lampreys to either the putrefaction extract (N = 8) or an ethanol control (N = 8) in a laboratory raceway. Sea lampreys rapidly avoided the putrefaction odor while exhibiting no response to the ethanol control. This response was elicited with a diluted mixture (1:373 000) and was maintained for 40 min (the duration of exposure), after which the lampreys quickly returned to their nominal distribution. The ease with which this odor is obtained, and the rapid and consistent behavioral response, suggests the substance will prove useful as a repellent in the sea lamprey control program carried out in the Laurentian Great Lakes.

Potential changes to the biology and challenges to the management of invasive sea lamprey Petromyzon marinus in the Laurentian Great Lakes due to climate change

2020 ◽  
Vol 26 (3) ◽  
pp. 1118-1137 ◽  
Author(s):  
Robert J. Lennox ◽  
Gale A. Bravener ◽  
Hsien‐Yung Lin ◽  
Charles P. Madenjian ◽  
Andrew M. Muir ◽  
...  
Keyword(s):  
Climate Change ◽  
Great Lakes ◽  
Petromyzon Marinus ◽  
Sea Lamprey ◽  
Laurentian Great Lakes

Instability of statolith elemental signatures revealed in newly metamorphosed sea lamprey (Petromyzon marinus)

2013 ◽  
Vol 70 (4) ◽  
pp. 565-573 ◽  
Author(s):  
Aude Lochet ◽  
J. Ellen Marsden ◽  
Brian J. Fryer ◽  
Stuart A. Ludsin
Keyword(s):  
Great Lakes ◽  
Inductively Coupled Plasma ◽  
Petromyzon Marinus ◽  
Sea Lamprey ◽  
Laurentian Great Lakes ◽  
Lake Champlain ◽  
Inductively Coupled ◽  
Natal Origin ◽  
Plasma Mass Spectrometry ◽  
The Stability

Techniques that use calcified structures to identify the natal origin of organisms assume that reworking of previously deposited material does not occur. While verified for otoliths, this assumption remains unverified for statoliths. Herein, we test the stability of sea lamprey (Petromyzon marinus) statolith microchemistry during metamorphosis. Using laser ablation inductively coupled plasma mass spectrometry, we quantified the concentrations of nine elements in statoliths from sea lamprey larvae (n = 118) and newly metamorphosed (n = 115) individuals that were collected across six tributaries of varying alkalinity in the Laurentian Great Lakes and Lake Champlain basins. In newly metamorphosed individuals from all streams, the portion of the statolith deposited during the larval stage was enriched in rubidium (Rb), strongly suggesting a chemical reworking of statoliths during metamorphosis. As the ability to discriminate among sea lamprey from different streams in the Great Lakes and Lake Champlain mostly relies on premetamorphic levels of Rb, strategies for the use of statoliths to identify the natal origin of sea lamprey parasitic juveniles and spawners (postmetamorphic stages) should take into account the chemical changes associated with metamorphosis.

scholarly journals A management-scale investigation of consistent individual differences in behaviour and trapping bias in Sea Lamprey (Petromyzon marinus)

2021 ◽  
Author(s):  
Rachel R. Holub ◽  
Gale A. Bravener ◽  
Robert L. McLaughlin
Keyword(s):  
Individual Differences ◽  
Great Lakes ◽  
Risk Taking ◽  
Petromyzon Marinus ◽  
Sea Lamprey ◽  
Laurentian Great Lakes ◽  
Small Scale ◽  
Behavioural Types ◽  
The Times ◽  
Sequential Trials

The Sea Lamprey (Petromyzon marinus) is invasive in the Laurentian Great Lakes. Trapping in large rivers could suppress Sea Lamprey recruitment by removing migrating adults prior to spawning. Currently, the proportion of Sea Lamprey trapped (efficiency) is too low for control purposes, possibly because trapping is biased toward certain behavioural types. We tested if individual differences in time to enter a novel environment (risk-taking) and proportion of time moving (activity) under standardized laboratory conditions were correlated with time to encounter and enter a trap in the field. 638 Sea Lamprey were tagged, assessed for risk-taking and activity in sequential trials, and released in the river to be trapped. In the laboratory, individuals differed consistently in risk-taking and activity behaviours, and more active individuals entered a simulated trap sooner than less active individuals. In the field, however, the times to first trap encounter, and capture in a trap, were not correlated with risk-taking or activity. Our study provides a novel demonstration of how patterns from small-scale behavioural studies may not extend to management-scale applications.

Classification of Sea Lamprey (Petromyzon marinus) Attack Marks on Great Lakes Lake Trout (Salvelinus namaycush)

1980 ◽  
Vol 37 (11) ◽  
pp. 1989-2006 ◽  
Author(s):  
Everett Louis King Jr.
Keyword(s):  
Great Lakes ◽  
Lake Trout ◽  
Petromyzon Marinus ◽  
Attachment Site ◽  
Sea Lamprey ◽  
Salvelinus Namaycush ◽  
Oral Disc ◽  
Field Assessment ◽  
Sea Lampreys

Criteria for the classification of marks inflicted by sea lamprey (Petromyzon marinus) into nine categories were developed from laboratory studies in an attempt to refine the classification system used in field assessment work. These criteria were based on characteristics of the attachment site that could be identified under field conditions by unaided visual means and by touching the attachment site. Healing of these marks was somewhat variable and was influenced by the size of lamprey, duration of attachment, severity of the wound at lamprey detachment, season and water temperature, and by other less obvious factors. Even under laboratory conditions staging of some wounds was difficult, especially at low water temperatures. If these criteria are to be used effectively and with precision in the field, close examination of individual fish may be required. If the feeding and density of specific year-classes of sea lampreys are to be accurately assessed on an annual basis, close attention to the wound size (as it reflects the size of the lamprey's oral disc) and character of wounds on fish will be required as well as consideration of the season of the year in which they are observed.Key words: sea lamprey, attack marks, lake trout, Great Lakes

Influence of Water Temperature on the Growth Rate of the Landlocked Sea Lamprey (Petromyzon marinus) and the Associated Rate of Host Mortality

1977 ◽  
Vol 34 (9) ◽  
pp. 1373-1378 ◽  
Author(s):  
G. J. Farmer ◽  
F. W. H. Beamish ◽  
P. F. Lett
Keyword(s):  
Growth Rate ◽  
Great Lakes ◽  
Water Temperature ◽  
Growth Rates ◽  
Petromyzon Marinus ◽  
Sea Lamprey ◽  
Instantaneous Growth ◽  
Exponential Decline ◽  
Influence Of Water ◽  
Host Mortality

Groups of sea lampreys (Petromyzon marinus) of 10–90 g initial weight were held at temperatures of 1–20 °C for 30 days and allowed to feed ad lib. on white suckers (Catostomus commersoni). Increases in water temperature and in lamprey size caused the rate of host mortality to increase in agreement with observations that mortality in the Great Lakes is seasonal. Instantaneous growth rates were maximal at 20 °C for lampreys of 10–30 g, the optimal temperature for growth shifting to 15 °C for larger lampreys of 30–90 g. Growth rates were intermediate at 10 °C and lowest at 4 °C for lampreys of all size. Accordingly, host mortality increased with temperature over the 4–20 °C range. At all experimental temperatures, increases in lamprey weight were accompanied by an exponential decline in instantaneous growth rates, a phenomenon also observed for teleosts. Laboratory growth rates at temperatures of 5–15 °C were comparable to rates observed for lampreys in Lake Huron between April and November and agree with the observation that lampreys feed in deeper waters between April and June before moving to warmer, shallower waters during the summer when growth rate increases. Key words: sea lamprey, white sucker, host, temperature, growth, Great Lakes, mortality

scholarly journals Evaluating active genetic options for the control of sea lamprey (Petromyzon marinus) in the Laurentian Great Lakes

2019 ◽  
Vol 76 (7) ◽  
pp. 1186-1202 ◽  
Author(s):  
Ronald E. Thresher ◽  
Michael Jones ◽  
D. Andrew R. Drake
Keyword(s):  
Great Lakes ◽  
Prey Species ◽  
Expert Panel ◽  
Petromyzon Marinus ◽  
Public Support ◽  
Sea Lamprey ◽  
Genetic Technology ◽  
Technical Problems ◽  
International Consultation ◽  
Core Issues

For more than two decades the Great Lakes Fishery Commission has sought tactics to complement, and potentially replace, the use of barriers and lampricides to control sea lamprey (Petromyzon marinus) in the Great Lakes, but thus far without success. This paper examines the potential of modern genetic technology to suppress these invasive populations. We identified six recombinant options that appeared to be moderately to highly feasible, most of which were judged by an expert panel as extremely low or low risk, and for which research and development was broadly supported by stakeholders. The two options judged to overall best combine high efficacy and low risks were a Mendelian “sex ratio drive” and genetically modifying a prey species combined with killing or sterilizing sea lamprey that fed on it. Core issues regarding use of genetic biocontrol in the Great Lakes include technical problems associated with maintaining a sea lamprey brood line, information gaps for most options, the extent of broader public support, and the extent and nature of national and international consultation required in making decisions about control options.

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