Before the first meal: The elusive pre-feeding juvenile stage of the sea lamprey

Evans, Thomas M.; Wagner, C. Michael; Miehls, Scott M.; Johnson, Nicholas S.; Haas, T.F.; Dunlop, Erin S.; Manzon, Richard G.

doi:10.1016/j.jglr.2021.02.005

Cited by 13 publications

(4 citation statements)

References 108 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Conversely, and despite a 38% decrease in median value, we failed to detect a significant negative effect of the transmitter in the time-to-exhaustion swim test. Why the effect of the tag manifested more strongly during burst vs. steady swimming is of interest, as burst or "escape" swimming is more associated with successful passage through hydraulic challenges and the avoidance of predators during out-migration [21]. When a juvenile sea lamprey accelerates from rest, it generates a high amplitude body bend (double that of steady swimming) that propagates over 75% of the body length [20].…”

Section: Discussionmentioning

confidence: 99%

“…These lampreys spawn in rivers, after which newly hatched larvae (ammocoetes) bury in stream sediments for typically four to seven years feeding on organic detritus and algae [14]. At the end of the larval stage, they transform and migrate downstream into estuaries or large lakes to commence parasitic feeding on fishes [1,14,21]. This period of physiological and geographical transition (aka the transformer stage) [9] is of short duration, yet is considered critical to the development of effective conservation and management practices [21].…”

Section: Introductionmentioning

confidence: 99%

“…At the end of the larval stage, they transform and migrate downstream into estuaries or large lakes to commence parasitic feeding on fishes [1,14,21]. This period of physiological and geographical transition (aka the transformer stage) [9] is of short duration, yet is considered critical to the development of effective conservation and management practices [21]. For example, out-migrating lamprey within their native ranges typically must transit through a gauntlet of dams and their affiliated water intake structures, resulting in physical injury, increased predation, and direct or delayed mortality [27,48].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Survival, healing, and swim performance of juvenile migratory sea lamprey (Petromyzon marinus) implanted with a new acoustic microtransmitter designed for small eel-like fishes

Haas

Castro‐Santos

Miehls

et al. 2022

Preprint

View full text Add to dashboard Cite

Background Little is known about the transformer stage of the parasitic lampreys, a brief but critical period that encompasses juvenile out-migration from rivers to lakes or oceans to begin parasitic feeding. Information about this life-stage could have significant conservation implications for both imperiled and invasive lampreys. We investigated tag retention, survival, wound healing, and swim performance of newly transformed sea lamprey (Petromyzon marinus) implanted with a new micro-acoustic transmitter, the eel-lamprey acoustic transmitter (ELAT), in a controlled laboratory environment. Results The 61-day survival of our tagged subjects was 71%, within the range reported in similar studies of juvenile lampreys. However, survival was significantly lower in the tagged animals (vs control), with no effect statistically attributable to measures of animal length, mass, condition, or population of origin (Great Lakes vs. Atlantic drainage). Mortality in tagged fish was concentrated in the first four days post-surgery, suggesting surgical injury. In a simple burst swim assay, tagged animals swam significantly slower (-22.5%) than untagged animals, but were not significantly different in endurance swim tests. A composite wound healing score was a significant predictor of maximum burst swim speed, and wound condition was related to animal mass, but not length, at the time of tagging. Conclusions Impairments to survival and swim performance of juvenile sea lamprey implanted with the ELAT transmitter were within currently acceptable ranges for telemetry studies with small, difficult to observe fishes. The ability to track migratory movements of imperiled and pest populations of parasitic lampreys will improve our ability to estimate vital rates that underlie recruitment to the adult population (growth, survival), and to investigate the environmental factors that regulate the timing and rates of movement, in wild populations.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Survival, healing, and swim performance of juvenile migratory sea lamprey (Petromyzon marinus) implanted with a new acoustic microtransmitter designed for small eel-like fishes

Haas

Castro‐Santos

Miehls

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…After about 3–7 years or more 5 , 8 , all lampreys complete metamorphosis into juvenile lampreys, with their characteristic oral disc and dagger-like tongue. In parasitic species of lampreys, the oral disc and dagger-like tongue is used to attach to and pierce the hide of fishes to allow them to ingest blood 9 . After a year or more, the juvenile lampreys become sexually mature adults which no longer feed.…”

Section: Introductionmentioning

confidence: 99%

Spatial Metabolomics Reveals the Multifaceted Nature of Lamprey Buccal Gland and Its Diverse Mechanisms for Blood-Feeding

Gou,

Duan,

et al. 2023

Commun Biol

View full text Add to dashboard Cite

Lampreys are blood-sucking vampires in marine environments. From a survival perspective, it is expected that the lamprey buccal gland exhibits a repository of pharmacologically active components to modulate the host’s homeostasis, inflammatory and immune responses. By analyzing the metabolic profiles of 14 different lamprey tissues, we show that two groups of metabolites in the buccal gland of lampreys, prostaglandins and the kynurenine pathway metabolites, can be injected into the host fish to assist lamprey blood feeding. Prostaglandins are well-known blood-sucking-associated metabolites that act as vasodilators and anticoagulants to maintain vascular homeostasis and are involved in inflammatory responses. The vasomotor reactivity test on catfish aortic ring showed that kynurenine can also relax the blood vessels of the host fish, thus improving the blood flow of the host fish at the bite site. Finally, a lamprey spatial metabolomics database (https://www.lampreydb.com) was constructed to assist studies using lampreys as animal model.

show abstract

The distribution and chemosensory responses of pharyngeal taste buds in the sea lamprey Petromyzon marinus

Polat,

Grande,

Aurangzeb

et al. 2024

J Comp Physiol A

View full text Add to dashboard Cite

Little is known about the chemosensory system of gustation in sea lampreys, basal jawless vertebrates that feed voraciously on live prey. The objective of this study was to investigate taste bud distribution and chemosensory responses along the length of the pharynx in the sea lamprey. Scanning electron microscopy and immunocytochemistry revealed taste buds and associated axons at all six lateral pharyngeal locations between the seven pairs of internal gill pores. The most rostral pharyngeal region contained more and larger taste buds than the most caudal region. Taste receptor cell responses were recorded to sweet, bitter, amino acids and the bile acid taurocholic acid, as well as to adenosine triphosphate. Similar chemosensory responses were observed at all six pharyngeal locations with taste buds. Overall, this study shows prominent taste buds and taste receptor cell activity in the seven pharyngeal regions of the sea lamprey.

show abstract

Before the first meal: The elusive pre-feeding juvenile stage of the sea lamprey

Cited by 13 publications

References 108 publications

Survival, healing, and swim performance of juvenile migratory sea lamprey (Petromyzon marinus) implanted with a new acoustic microtransmitter designed for small eel-like fishes

Survival, healing, and swim performance of juvenile migratory sea lamprey (Petromyzon marinus) implanted with a new acoustic microtransmitter designed for small eel-like fishes

Spatial Metabolomics Reveals the Multifaceted Nature of Lamprey Buccal Gland and Its Diverse Mechanisms for Blood-Feeding

The distribution and chemosensory responses of pharyngeal taste buds in the sea lamprey Petromyzon marinus

Contact Info

Product

Resources

About