Icelandic lampreys (Petromyzon marinus): where do they come from?

Pereira, Ana; Jónsson, Benóný; Jóhannsson, Magnús; Robalo, Joana Isabel; Almada, Vítor Carvalho

doi:10.1007/s10228-011-0248-9

Cited by 6 publications

(3 citation statements)

References 8 publications

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“…The sea lamprey is described to occur south of Greenland and in sporadic occurrences with increasing frequency off Iceland (Astthorsson & Palsson 2006). This species has also been recorded as 'new' in Icelandic waters, where specimens have been assigned to the European stock, which supports the theory of large-scale migrations (Pereira et al 2012).…”

Section: Distributional Shiftssupporting

confidence: 71%

Increasing temperatures, diversity loss and reorganization of deep-sea fish communities east of Greenland

Emblemsvåg

Núñez‐Riboni

Christensen

et al. 2020

Mar. Ecol. Prog. Ser.

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In recent years, Arctic and sub-Arctic fish communities have shown extensive reorganization on shelves and in shallow waters, but little is known about the ecological impact of environmental changes in deeper waters. We examined temporal changes (1998-2016) in fish diversity and community structure based on research survey data from East Greenland, over a depth gradient spanning 400 to 1500 m. A northern and a southern continental slope region, 360 km apart, were analysed for temporal changes in water temperature and fish community structure. The bottom water temperature increased by up to 0.2 and 0.5°C, respectively. Contrary to expectations, there was a concomitant loss of species richness of up to 3 and 5 species, respectively, and a decrease in total abundance in both regions. Abundances of individual species displayed different trends between regions, with 3 species of wolf fishes (Anarhichas spp.) and American plaice Hippoglossoides platessoides decreasing in the north and blue antimora Antimora rostrata, Agassiz’ slickhead Alepocephalus agassizii and the roundnose grenadier Coryphaenoides rupestris decreasing in the south. The regional differences may reflect different oceanographic characteristics, as the northern region is more influenced by colder Arctic water, whereas the southern region is primarily influenced by the Subpolar Gyre (SPG). However, the observed temperature increase is expected to be due to an intensifying Atlantic Multidecadal Oscillation and/or anthropogenic climate change and not to SPG changes. The observed changes in biodiversity and community structure associated with warming are likely to affect community dynamics and alter ecosystem functioning.

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Section: Distributional Shiftssupporting

confidence: 71%

Increasing temperatures, diversity loss and reorganization of deep-sea fish communities east of Greenland

Emblemsvåg

Núñez‐Riboni

Christensen

et al. 2020

Mar. Ecol. Prog. Ser.

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“…Signs of a possible improvement of P. marinus populations in the UK have been observed; one of the factors responsible for this recovery is considered to be the restoration of water quality (Colclough et al 2002;Joint Nature Conservation Committee 2007). Also, Pereira et al (2012) mentioned a recent rise in the occurrence of this species in coastal areas and rivers of Iceland. This information could be indicative of a general increase of P. marinus throughout European populations; however, this statement must be confirmed with data gathered from other regions and with longer sample periods.…”

Section: Discussionmentioning

confidence: 96%

Densities and biomass of larval sea lamprey populations (Petromyzon marinus Linnaeus, 1758) in north-western Spain and data comparisons with other European regions

Silva

Vieira‐Lanero

Barca

et al. 2017

Mar. Freshwater Res.

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Although the sea lamprey, Petromyzon marinus Linnaeus, 1758, is a threatened species in Europe, available data on the condition and dynamics of its populations are very limited. Thus, electrofishing surveys were conducted annually between 2007 and 2011, so as to study the status and trends of larval populations of P. marinus in north-western Spain. In addition, data from other European regions were compiled. The density and biomass (mean AE standard error) of ammocoetes in selected areas of larval habitat in north-western Spain were 11.0 AE 1.44 individuals m À2 and 15.1 AE 2.64 g m À2 , and showed signs of a population increase during the study period. However, conservation status of P. marinus was not considered favourable because of several factors, such as the widespread presence of obstacles (restriction of migration and habitat availability), along with some cases of organic pollution. Results and available data suggest that the largest populations of P. marinus as well as the main fisheries are located throughout the south-western areas of Europe (north-central Portugal, north-north-west of Spain and west-south-west of France). Signs of population increases were also registered in other European regions; however, more data are needed to confirm whether this trend has any relevance to a possible overall recovery.

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“…Also, the occurrence of sea lampreys feeding in Icelandic waters has been reported (Pereira et al, 2012;Ólafsdóttir & Shinn, 2013), the rivers in which the existence of reproduction or larval populations of P. marinus has not been described so far (Pereira et al, 2012). Haedrich (1977) reported a bottom trawl-caught specimen at 4099 m deep, 400 km off southern New England, but acknowledged the possibility that capture occurred in midwater upon net retrieval.…”

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confidence: 99%

The haematophagous feeding stage of anadromous populations of sea lamprey Petromyzon marinus: low host selectivity and wide range of habitats

et al. 2014

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Limited information is available regarding habitat use and host species of the haematophagous feeding stage of the anadromous sea lamprey Petromyzon marinus Linnaeus, 1758, due to the difficulties in capturing feeding lampreys and wounded hosts. The aim of this study is to provide new records of P. marinus feeding on host species and to review the available information in this regard to better know the ecology and distribution of sea lamprey during this stage. Thus, new records of P. marinus individuals or wounds on 23 species of fishes and cetaceans are provided. Nineteen of these species were described for the first time as hosts of P. marinus. As a result, an updated list of 54 host species is provided. They belong to diverse taxonomic groups and exhibit different morphological, physiological and ecological patterns. The attacks were located from fresh and brackish waters to open sea. The results suggest that the marine distribution of P. marinus is mainly related to coastal areas with part of the population widely dispersed in offshore areas. This remarkable capacity of inhabiting a broad range of aquatic ecosystems and exploiting different host species could have favoured the dispersal ability and evolutionary success of sea lamprey.

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Icelandic lampreys (Petromyzon marinus): where do they come from?

Cited by 6 publications

References 8 publications

Increasing temperatures, diversity loss and reorganization of deep-sea fish communities east of Greenland

Increasing temperatures, diversity loss and reorganization of deep-sea fish communities east of Greenland

Densities and biomass of larval sea lamprey populations (Petromyzon marinus Linnaeus, 1758) in north-western Spain and data comparisons with other European regions

The haematophagous feeding stage of anadromous populations of sea lamprey Petromyzon marinus: low host selectivity and wide range of habitats

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