First record of the brown mussel (Perna perna) from the European Atlantic coast

Lourenço, Carla R.; Nicastro, Katy R.; Serrão, Ester Á.; Zardi, Gerardo I.

doi:10.1017/s1755267212000280

Cited by 25 publications

(17 citation statements)

References 27 publications

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“…Moreover, it is reported as invasive in Western Australia [11] and in Texas, the Gulf of Mexico and southern Vera Cruz, where it was introduced via ballast water [12]. It has recently been reported for the first time on the southern Portuguese coast, suggesting a recent range expansion from Northern African shores [13] . …”

Section: Resultsmentioning

confidence: 99%

Characterization of ten highly polymorphic microsatellite loci for the intertidal mussel Perna perna, and cross species amplification within the genus

et al. 2012

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BackgroundThe brown mussel Perna perna (Linnaeus, 1758) is a dominant constituent of intertidal communities and a strong invader with multiple non-native populations distributed around the world. In a previous study, two polymorphic microsatellite loci were developed and used to determine population-level genetic diversity in invasive and native P. perna populations. However, higher number of microsatellite markers are required for reliable population genetic studies.In this context, in order to understand P. perna origins and history of invasion and to compare population genetic structure in native versus invaded areas, we developed 10 polymorphic microsatellite markers.FindingsDescribed microsatellite markers were developed from an enriched genomic library. Analyses and characterization of loci using 20 individuals from a population in Western Sahara revealed on average 11 alleles per locus (range: 5–27) and mean gene diversity of 0.75 (range: 0.31 - 0.95). One primer pair revealed possible linkage disequilibrium while heterozygote deficiency was significant at four loci. Six of these markers cross-amplified in P. canaliculus (origin: New Zealand).ConclusionsDeveloped markers will be useful in addressing a variety of questions concerning P. perna, including dispersal scales, genetic variation and population structure, in both native and invaded areas.

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Section: Resultsmentioning

confidence: 99%

Characterization of ten highly polymorphic microsatellite loci for the intertidal mussel Perna perna, and cross species amplification within the genus

et al. 2012

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“…An additional field experiment was performed in Portugal (where the two species also coexist; [33]) at Vilamoura (37°04′36″N, 8°06′42″W) on the 9 th of June 2012 (average air temperature was 23°C while maximum was 30°C, Albufeira weather station).…”

Section: Methodsmentioning

confidence: 99%

Love Thy Neighbour: Group Properties of Gaping Behaviour in Mussel Aggregations

et al. 2012

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By associating closely with others to form a group, an animal can benefit from a number of advantages including reduced risk of predation, amelioration of environmental conditions, and increased reproductive success, but at the price of reduced resources. Although made up of individual members, an aggregation often displays novel effects that do not manifest at the level of the individual organism. Here we show that very simple behaviour in intertidal mussels shows new effects in dense aggregations but not in isolated individuals. Perna perna and Mytilus galloprovincialis are gaping (periodic valve movement during emersion) and non-gaping mussels respectively. P. perna gaping behaviour had no effect on body temperatures of isolated individuals, while it led to increased humidity and decreased temperatures in dense groups (beds). Gaping resulted in cooler body temperatures for P. perna than M. galloprovincialis when in aggregations, while solitary individuals exhibited the highest temperatures. Gradients of increasing body temperature were detected from the center to edges of beds, but M. galloprovincialis at the edge had the same temperature as isolated individuals. Furthermore, a field study showed that during periods of severe heat stress, mortality rates of mussels within beds of the gaping P. perna were lower than those of isolated individuals or within beds of M. galloprovincialis, highlighting the determinant role of gaping on fitness and group functioning. We demonstrate that new effects of very simple individual behaviour lead to amelioration of abiotic conditions at the aggregation level and that these effects increase mussel resistance to thermal stress.

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“…Over the last few decades, sea surface temperatures (SST) have significantly increased along this coastline, while five interspersed upwelling areas (west coast of Portugal, Strait of Gibraltar, Cape Ghir, Cape Juby and north of Cape Blanc) show lower or non‐significant temperature increase and rather, in some cases, cooling trends (Lima & Wethey, ), offering natural experimental replicates. Importantly, these shores are a biogeographical transition region where several warm‐ and cold‐water species reach their northern or southern range limits (Lima et al ., ; Lourenço et al ., ; Rubal et al ., ), therefore offering the opportunity for early identification of distributional expansions and contractions (Lima et al ., , ; Nicastro et al ., ; Neiva et al ., ).…”

Section: Introductionmentioning

confidence: 99%

Upwelling areas as climate change refugia for the distribution and genetic diversity of a marine macroalga

Lourenço

Zardi

McQuaid

et al. 2016

Journal of Biogeography

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102

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Aim Global climate change has profound and diverse effects on biological diversity. Identifying present-day climate refugia is an increasingly recognized strategy for the management of biodiversity loss. Such refugia are potential safe havens that enhance environmental diversity by buffering the effects of large scale change, facilitating species persistence at regional scales and conserving unique genetic diversity. Although their ecological effects are well studied, the potential of upwelling centres to act as refugia in a scenario of climate warming remains largely unexplored. Here, we investigate whether upwelled waters act as refugia in a region heavily affected by recent climatic changes.Location Shores of south-western Iberia and north-western Africa.Methods We compared changes in distribution of the canopy-forming macroalga Fucus guiryi with sea surface temperature patterns in five upwelling areas and adjacent warmer regions. Population diversity and structure was inferred from genotypic analyses using nine microsatellite loci.Results Fucus guiryi has disappeared from large expanses of non-upwelling shores, currently persisting in areas characterized by strong upwelling and reduced or non-significant rates of warming. Populations of F. guiryi were more abundant towards upwelling centres. Furthermore, the genetic characterization of populations revealed distinct genetic groups associated with each upwelling system. Main conclusionsWithin a large region of predominantly changing climate, we highlight the fundamental importance of upwelling areas as favourable, comparatively stable climates where F. guiryi has retreated and persists, preserving unique portions of the species' genetic pool.

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First record of the brown mussel (Perna perna) from the European Atlantic coast

Cited by 25 publications

References 27 publications

Characterization of ten highly polymorphic microsatellite loci for the intertidal mussel Perna perna, and cross species amplification within the genus

Characterization of ten highly polymorphic microsatellite loci for the intertidal mussel Perna perna, and cross species amplification within the genus

Love Thy Neighbour: Group Properties of Gaping Behaviour in Mussel Aggregations

Upwelling areas as climate change refugia for the distribution and genetic diversity of a marine macroalga

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