A multi-component migratory pheromone in the sea lamprey

Sorensen, Peter W.; Vrieze, Lance A.; Fine, Jared M.

doi:10.1023/b:fish.0000030545.39156.2b

Cited by 33 publications

(21 citation statements)

References 11 publications

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“…Adult migratory behaviour in P. marinus is apparently associated with the presence of bile acids produced by ammocoetes (Bjerselius et al, 2000). These apparent attractants, petromyzonol sulfate and allocholic acid, act synergistically with natural stream waters and do not appear to be species-specific (Vrieze & Sorensen, 2001;Sorensen et al, 2003). The low level of among-population genetic differentiation in Pacific lamprey is similar to that in anadromous North American populations of sea lamprey.…”

Section: Evidence For High Levels Of Gene Flow In Pacific Lampreymentioning

confidence: 85%

Mitochondrial DNA evidence for high levels of gene flow among populations of a widely distributed anadromous lamprey Entosphenus tridentatus (Petromyzontidae)

Goodman

Reid

Docker

et al. 2008

Journal of Fish Biology

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Mitochondrial DNA variation among 1246 individuals of Pacific lamprey (Entosphenus tridentatus) from 81 populations spanning 2600 km from the Skeena River, British Columbia, to the Ventura River, California, was surveyed using five restriction enzymes. A total of 29 composite haplotypes was detected in two gene fragments (ND2 and ND5). The three most common haplotypes, occurring in 91% of all samples, were present at similar frequencies in all regions. Samples were divided into six biogeographic regions based on sample distribution and geographical landmarks to assess geographic genetic structure. Analysis of molecular variance indicated that 99% of the genetic variation was explained by variability within drainages. The lack of geographical population structure is likely related to a life-history pattern that includes a prolonged larval freshwater stage, migration to oceanic feeding and return to fresh water to spawn. The lack of strong natal homing apparently promotes gene flow among drainages and regions.

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Section: Evidence For High Levels Of Gene Flow In Pacific Lampreymentioning

confidence: 85%

Mitochondrial DNA evidence for high levels of gene flow among populations of a widely distributed anadromous lamprey Entosphenus tridentatus (Petromyzontidae)

Goodman

Reid

Docker

et al. 2008

Journal of Fish Biology

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“…Sea lamprey do spawn in all of the study rivers (Frear and Shannon, 1994;Whitton and Lucas, 1997;BEST, 2003BEST, , 2004, but the long-term viability and conservation status of their populations is a concern owing to their low abundance and the apparent irregularity of successful spawning. Adult sea lamprey are known to locate spawning rivers using a migratory pheromone released by resident larval conspecifics (Sorensen et al, 2003). Similarly, female sea lamprey locate males via a pheromone released by males on the spawning grounds (Li et al, 2003).…”

Section: Discussionmentioning

confidence: 99%

Condition assessment of lamprey populations in the Yorkshire Ouse catchment, north‐east England, and the potential influence of physical migration barriers

Nunn

Harvey

Noble

et al. 2007

Aquatic Conservation

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ABSTRACT1. River lamprey (Lampetra fluviatilis) and sea lamprey (Petromyzon marinus) are designated features of the River Derwent Special Area of Conservation (SAC) and the Humber Estuary (a possible SAC). This study determined the condition of lamprey populations in the Yorkshire Ouse catchment by assessing the species composition, distribution, abundance and size-structure of larval (ammocoete) populations in five major tributary rivers (Derwent, Swale, Ure, Nidd and Wharfe).2. According to EU condition assessment criteria, Lampetra populations (assumed to be mostly river lamprey) are at present in favourable condition, with site mean ðAESEÞ densities ranging from 2.7 ðAE1:2Þ to 160.3 ðAE50:5Þ individuals m À2 (all river means >2 individuals m À2 ), and at least two size (% age) classes present in optimal microhabitats. By contrast, no sea lamprey larvae were recorded, suggesting that populations of this species are in unfavourable condition.3. Actions to protect and enhance nationally or internationally important stocks must be implemented from at least a catchment perspective, because many of the issues affecting such species are not localized. With respect to lampreys, particular attention should be given to protecting spawning and nursery habitats, improving water quality, reducing impingement at abstraction points, preventing exploitation at spawning grounds and increasing passage at potential physical obstructions.

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“…marinus spawn on large graveled areas with fast-flowing water and are thought to identify suitable spawning rivers using pheromones (bile acids) released by larval lampreys residing in the sediment (Li, Sorensen, & Gallaher, 1995;Sorensen, Vrieze, & Fine, 2003). marinus spawn on large graveled areas with fast-flowing water and are thought to identify suitable spawning rivers using pheromones (bile acids) released by larval lampreys residing in the sediment (Li, Sorensen, & Gallaher, 1995;Sorensen, Vrieze, & Fine, 2003).…”

Section: Introductionmentioning

confidence: 99%

Identifying spawning sites and other critical habitat in lotic systems using eDNA “snapshots”: A case study using the sea lamprey Petromyzon marinus L.

Bracken

Rooney

Kelly‐Quinn

et al. 2018

Ecology and Evolution

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Many aquatic species of conservation concern exist at low densities and are inherently difficult to detect or monitor using conventional methods. However, the introduction of environmental (e)DNA has recently transformed our ability to detect these species and enables effective deployment of limited conservation resources. Identifying areas for breeding, as well as the ecological distribution of species, is vital to the survival or recovery of a conservation species (i.e., areas of critical habitat). In many species, spawning events are associated with a higher relative abundance of DNA released within an aquatic system (i.e., gametes, skin cells etc.), making this the ideal time to monitor these species using eDNA techniques. This study aims to examine whether a “snapshot” eDNA sampling approach (i.e., samples taken at fixed points in chronological time) could reveal areas of critical habitat including spawning sites for our target species Petromyzon marinus. We utilized a species‐specific qPCR assay to monitor spatial and temporal patterns in eDNA concentration within two river catchments in Ireland over three consecutive years. We found that eDNA concentration increased at the onset of observed spawning activity and patterns of concentration increased from downstream to upstream over time, suggesting dispersal into the higher reaches as the spawning season progressed. We found P. marinus to be present upstream of several potential barriers to migration, sometimes in significant numbers. Our results also show that the addition of a lamprey‐specific fish pass at an “impassable” weir, although assisting in ascent, did not have any significant impact on eDNA concentration upstream after the pass had been installed. eDNA concentration was also found to be significantly correlated with both the number of fish and the number of nests encountered. The application of snapshot sampling techniques for species monitoring therefore has substantial potential for the management of low‐density species in fast‐moving aquatic systems.

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A multi-component migratory pheromone in the sea lamprey

Cited by 33 publications

References 11 publications

Mitochondrial DNA evidence for high levels of gene flow among populations of a widely distributed anadromous lamprey Entosphenus tridentatus (Petromyzontidae)

Mitochondrial DNA evidence for high levels of gene flow among populations of a widely distributed anadromous lamprey Entosphenus tridentatus (Petromyzontidae)

Condition assessment of lamprey populations in the Yorkshire Ouse catchment, north‐east England, and the potential influence of physical migration barriers

Identifying spawning sites and other critical habitat in lotic systems using eDNA “snapshots”: A case study using the sea lamprey Petromyzon marinus L.

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