Olfactory-mediated behaviors in fish are often examined in artificial microcosms that enable well-controlled treatments but fail to replicate environmental and social contexts. However, observing these behaviors in nature poses challenges. Here, we describe a protocol for recording sea lamprey (Petromyzon marinus) behaviors in a natural system. We describe steps for administering and verifying accurate odorant concentrations, surveying sea lamprey abundance, and tracking sea lamprey movements. We also detail procedures to analyze treatment effects on pheromone-mediated spawning in a high-density population. For complete details on the use and execution of this protocol, please refer to Scott et al..
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http://dx.doi.org/10.1016/j.xpro.2024.102891 | DOI Listing |
Nat Commun
January 2025
BGI Research, Qingdao, 266555, China.
Lampreys are early jawless vertebrates that are the key to understanding the evolution of vertebrates. However, the lack of cytomic studies on multiple lamprey organs has hindered progress in this field. Therefore, the present study constructed a comprehensive cell atlas comprising 604,460 cells/nuclei and 70 cell types from 14 lamprey tissue samples.
View Article and Find Full Text PDFJ Texture Stud
February 2025
MED-Mediterranean Institute for Agriculture, Environment and Development & CHANGE-Global Change and Sustainability Institute, Universidade de Évora, Évora, Portugal.
Assessment of sea lamprey texture from the Guadiana and Mondego River basins. Lamprey has served as food for centuries, and nowadays it is highly appreciated, mainly in southern European countries. Therefore, the quality requirements of the lamprey are closely scrutinized by consumers.
View Article and Find Full Text PDFDev Biol
January 2025
Division of Biology and Biological Engineering, California Institute of Technology, 91125, Pasadena, CA, USA. Electronic address:
While the enteric nervous system (ENS) of jawed vertebrates is largely derived from the vagal neural crest, lamprey are jawless vertebrates that lack the vagal neural crest, yet possess enteric neurons derived from late-migrating Schwann cell precursors. To illuminate homologies between the ENS of jawed and jawless vertebrates, here we examine the diversity and distribution of neuronal subtypes within the intestine of the sea lamprey during late embryonic and ammocete stages. In addition to previously described 5-HT-immunoreactive serotonergic neurons, we identified NOS and VIP neurons, consistent with motor neuron identity.
View Article and Find Full Text PDFNat Commun
December 2024
Department of Ophthalmology and Stein Eye Institute, UCLA David Geffen School of Medicine, Los Angeles, CA, USA.
The lamprey, a primitive jawless vertebrate whose ancestors diverged from all other vertebrates over 500 million years ago, offers a unique window into the ancient formation of the retina. Using single-cell RNA-sequencing, we characterize retinal cell types in the lamprey and compare them to those in mouse, chicken, and zebrafish. We find six cell classes and 74 distinct cell types, many shared with other vertebrate species.
View Article and Find Full Text PDFJ Environ Manage
January 2025
USGS, Great Lakes Science Center, Hammond Bay Biological Station, 11188 Ray Road, Millersburg, MI, 49759, USA.
Integrated Pest Management (IPM) provides a powerful framework for addressing threats to human well-being caused by nuisance species including invasives. We examined the hypothesis that adaptive management could erode barriers to IPM implementation by developing a decision-analytic adaptive management framework for invasive sea lamprey (Petromyzon marinus) IPM in the Laurentian Great Lakes of North America. The framework addressed objectives associated with coordinating multiple sea lamprey control actions at the regional scale and objectives associated with internal validity of control actions.
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