Use of an artificial stream to monitor avoidance behavior of larval sea lamprey in response to TFM and niclosamide

Schloesser, Nicholas A.; Boogaard, Michael A.; Johnson, Todd A.; Kirkeeng, Courtney A; Schueller, Justin; Erickson, Richard A.

doi:10.1016/j.jglr.2021.04.015

Cited by 3 publications

(1 citation statement)

References 15 publications

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“…Changes in the sex ratio of lampreys may lead to changes in their predatory behaviour, which may affect the abundance and variety of species they prey on. This may have a direct impact on other fish, crustaceans and other organisms in the ecosystem [10].…”

Section: The Establishment Of An Index Modelmentioning

confidence: 99%

Ecosystem Impacts of Changes in the Sex Ratio of Lampreys Based on Logistic and TOPSIS Models

Li,

He,

Zhao

2024

HSET

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This paper has investigated the significant sex ratio changes shown by lampreys under specific environmental conditions, and has analysed the impacts of lampreys on the ecosystem. It has explored the effects of changes in its sex ratio on food resource use, food chain structure, reproduction rate, and habitat use based on an ecosystem model of logistic modelling, thus revealing the major adjustments in ecological balance and impacts on system stability that may result from changes in sex ratio. This paper has further applied the TOPSIS model to parasitoids to analyse the potential advantages that changes in sex ratios bring to other species within the ecosystem, including the effects on food webs, ecological niches, parasitism processes and system health. The results of this study suggest that changes in the sex ratio of lampreys can provide advantages to specific species (especially parasitic species) through a variety of mechanisms.

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Section: The Establishment Of An Index Modelmentioning

confidence: 99%

Ecosystem Impacts of Changes in the Sex Ratio of Lampreys Based on Logistic and TOPSIS Models

Li,

He,

Zhao

2024

HSET

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Upper temperature limit of larval Pacific lamprey Entosphenus tridentatus: implications for conservation in a warming climate

Whitesel

2022

Environ Biol Fish

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Climate models suggest that by 2100, maximum temperatures where many larval Pacific lamprey, Entosphenus tridentatus, rear now may approach 27–31 °C. Little information exists on whether larval Pacific lamprey can tolerate these temperatures. We used acclimated chronic exposure (ACE) and direct acute exposure (DAE) experiments to determine the water temperature that is lethal to larval Pacific lamprey and whether sublethal water temperatures influence larval burrowing behavior. After 30 days in ACE experiments, all larvae survived in temperatures averaging ≤ 27.7 °C, no larvae survived in temperatures averaging ≥ 30.7 °C and the ultimate upper incipient lethal temperature (UILT) was estimated to be 29.2 °C. After seven days in DAE experiments, all larvae survived in 27.1 °C, only larvae acclimated to 23.3 °C survived in 29.1 °C, and no larvae survived in temperatures ≥ 30.6 °C. Using a time to death analysis, estimates of the UILTs ranged from 27.5 to 30.2 °C and the ultimate UILT was estimated to be > 28.3 °C. Using a percent mortality analysis, estimates of the ultimate UILT were not definitive but indicated it may be > 30.2 °C. To burrow, larvae reared for 30 days at temperatures averaging 26.9–27.7 °C exhibited more total time, active time, and stops than those reared for 30 days at temperatures averaging 22.3–23.9 °C. Our findings suggest that larval Pacific lamprey may be resilient to the most likely temperature increase scenarios predicted by climate models. However, they may be vulnerable to the high-temperature increase scenarios and, relatively high but sublethal temperatures may impact the behavior, and ultimately survival, of larval Pacific lamprey.

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