At-sea feeding ecology of parasitic lampreys

Quintella, Bernardo R.; Clemens, Benjamin J.; Sutton, Trent M.; Lança, Maria João; Madenjian, Charles P.; Happel, Austin; Harvey, Chris J.

doi:10.1016/j.jglr.2021.07.008

Cited by 36 publications

(28 citation statements)

References 151 publications

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“…This long ocean residence time is an unanticipated finding given that previous estimates were hypothesized to be shorter for Pacific Lamprey (up to 3.5 years based on survival in laboratory conditions; Beamish 1980). Sea Lamprey are also thought to reside for relatively short periods in the Atlantic Ocean (10–28 months; reviewed by Quintella et al 2021).…”

Section: Discussionmentioning

confidence: 99%

Pacific Lamprey Translocations to the Snake River Boost Abundance of All Life Stages

et al. 2022

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The Pacific Lamprey Entosphenus tridentatus is an anadromous fish that has severely declined in the Snake River basin. In 2007, the Nez Perce Tribe initiated translocation of adults to this region from the main-stem Columbia River and has continued the translocations to this day. These actions are aimed at restoring larval abundance along with holistic habitat improvements. We performed parentage and sibship analyses with 260 single-nucleotide polymorphism loci to monitor productivity of translocated lamprey over a decade (2007)(2008)(2009)(2010)(2011)(2012)(2013)(2014)(2015)(2016)(2017)(2018). These results provide the first direct evidence that translocations boosted larval abundance, increased juvenile production in the interior Columbia River (~3% in 2017 and 2018), and demonstrated successful migration to the Pacific Ocean. Per capita juvenile production from Snake River adult lamprey translocations out-performed that of their volitionally migrating counterparts in the interior Columbia River, demonstrating that translocating adults to suitable habitats increased overall productivity. We projected that the translocations may eventually return enough adult offspring to the Columbia River to replace the annual take of adults for translocations, despite many adults likely returning to other basins. These translocations are also restoring Pacific Lamprey to historical areas where they had been nearly extirpated, which has impactful benefits both culturally and ecologically. Further, this study provided an unprecedented volume of data that has redefined key biological attributes, including timing of life stage transformation (average of 6.7-year-old juveniles), larval growth rates (~22 mm/year for the first 4 years), ocean duration (average of 5.1 years), dispersal (~3% of Snake River-origin adults that return to the Columbia River will divert to the Willamette River), and life span (median age of postspawn adults was 12.9 years). We even quantified a new biological phenomenon of delayed spawning, which occurs at low rates (~9%) in nature. These data provide an opportunity to monitor ongoing translocation efforts and inform adaptive management to aid species recovery.

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Section: Discussionmentioning

confidence: 99%

Pacific Lamprey Translocations to the Snake River Boost Abundance of All Life Stages

et al. 2022

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“…In this paper, we present the results of our study on a living “fossil”: the European river lamprey Lampetra fluviatilis Linnaeus, 1758 (Petromyzontiformes, Cyclostomata). Migratory lampreys are eel-shaped facultative hematophagous ectoparasites or predators [ 20 , 21 ]. Agnathans separated from the main branch of the vertebrate evolutionary tree, i.e., jawed vertebrates (gnathostomes), between 535 and 462 million years ago [ 22 , 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

The First Analysis of Synaptonemal Complexes in Jawless Vertebrates: Chromosome Synapsis and Transcription Reactivation at Meiotic Prophase I in the Lamprey Lampetra fluviatilis (Petromyzontiformes, Cyclostomata)

Matveevsky

Tropin

Kucheryavyy

et al. 2023

Life

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Transcription is known to be substage-specific in meiotic prophase I. If transcription is reactivated in the mid pachytene stage in mammals when synapsis is completed, then this process is observed in the zygotene stage in insects. The process of transcriptional reactivation has been studied in a small number of different taxa of invertebrates and vertebrates. Here, for the first time, we investigate synapsis and transcription in prophase I in the European river lamprey Lampetra fluviatilis (Petromyzontiformes, Cyclostomata), which is representative of jawless vertebrates that diverged from the main branch of vertebrates between 535 and 462 million years ago. We found that not all chromosomes complete synapsis in telomeric regions. Rounded structures were detected in chromatin and in some synaptonemal complexes, but their nature could not be determined conclusively. An analysis of RNA polymerase II distribution led to the conclusion that transcriptional reactivation in lamprey prophase I is not associated with the completion of chromosome synapsis. Monomethylated histone H3K4 is localized in meiotic chromatin throughout prophase I, and this pattern has not been previously detected in animals. Thus, the findings made it possible to identify synaptic and epigenetic patterns specific to this group and to expand knowledge about chromatin epigenetics in prophase I.

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“…Post-hatching larvae, or ammocoetes, are free-living organisms that feed on detritus deposited on river sediment beds or through filtration of the water column (Guo et al, 2017). The metamorphosis into young adults marks the onset of the species’ parasitic behaviour, as sea-dwelling lampreys mandatorily feed on blood of other vertebrates (Quintella et al, 2021; Silva, Servia, Vieira-Lanero, Barca, & Cobo, 2013). Adult sea lampreys spend their life at sea, a stage that is expected to last between 10 and 28 months preceding sexual maturation (Beamish, 1980; Renaud & Cochran, 2019; Silva et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Seascape genomics reveals limited dispersal and suggest spatially varying selection among European populations of sea lamprey (Petromyzon marinus)

Baltazar‐Soares

Britton

Pinder

et al. 2022

Preprint

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Sea lamprey Petromyzon marinus is an anadromous and semelparous fish without homing behaviours. Despite being a freshwater, free-living organism for large part of its life cycle, its adulthood is spent as a parasite of marine vertebrates. Here, we performed the first genome-wide characterization of sea lamprey genetic diversity in their European natural range. The objectives were to investigate the connectivity among river basins and explore evolutionary processes mediating dispersal during the marine phase. For that, we sequenced 186 individuals from 8 locations spanning the North-eastern Atlantic coast and the North Sea with double-digest RAD-sequencing, obtaining a total of 30910 bi-allelic SNPs. Population genomic analyses reinforced the existence of a single metapopulation encompassing freshwater spawning sites within the north-eastern Atlantic and the North Sea, though the prevalence of private alleles at northern latitudes suggested some limits to the species dispersal. Seascape analyses revealed candidate loci associated with the abundance of some host species and were located in a genomic region coding for variable lymphocyte receptors, an adaptive immunity tool unique to jawless vertebrates, and to MARCH proteins, a family of E3 ubiquitin ligases also involved in the regulation of immune responses. Abiotic factors (e.g., maximum phosphate, dissolved oxygen and water temperature) were significantly correlated with candidate loci associated with the myo-inositol synthesis, a pathway linked to osmoregulation, and to other genomic regions involved in organismal homeostasis. The identification of adaptive seascapes in this ancient species, especially if linked to primitive adaptive immune responses, could be relevant to understand the evolutionary pathways early in vertebrate evolution.

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At-sea feeding ecology of parasitic lampreys

Cited by 36 publications

References 151 publications

Pacific Lamprey Translocations to the Snake River Boost Abundance of All Life Stages

Pacific Lamprey Translocations to the Snake River Boost Abundance of All Life Stages

The First Analysis of Synaptonemal Complexes in Jawless Vertebrates: Chromosome Synapsis and Transcription Reactivation at Meiotic Prophase I in the Lamprey Lampetra fluviatilis (Petromyzontiformes, Cyclostomata)

Seascape genomics reveals limited dispersal and suggest spatially varying selection among European populations of sea lamprey (Petromyzon marinus)

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